File: ChangeLog

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2002-01-21  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-marker.c: Make the min and max size
	values for the markers be functions of the default size.

	* plug-ins/plot/axis/guppi-axis-view.c (compute_size): #if
	0/#endif out the overly-clever bit of code that was leading to
	truncated labels.

2002-01-20  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-axis-markers.c
	(guppi_axis_markers_adjust_excel): Fixed some simple typos.

2002-01-20  Jody Goldberg <jody@gnome.org>

	* plug-ins/plot/scatter/guppi-scatter-state.c (guppi_scatter_state_init) :
	  Add [xy]_axis_type.
	(guppi_scatter_state_{get,set}_{x,y}_axis_type) : new.

	* plug-ins/plot/scatter/guppi-scatter-view.c (view_init) : Use them here.

	* src/libguppiplot/guppi-axis-markers.c (excel_date_init) : new.
	(guppi_date_set_excel) : ditto.
	(guppi_axis_markers_adjust_excel) : ditto.
	(guppi_axis_markers_populate_dates) : optionally populate with excel
	  style serial dates.
	(guppi_axis_markers_populate_generic) : add GUPPI_AXIS_XL_DATE.

2002-01-19  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-item.c (render): Use
	guppi_paint_sharp_box to draw ticks, so they line up
	properly with the rules.

	* plug-ins/plot/frame/guppi-frame-item.c (sharp_box): Use a sharp
	box instead of a soft box.
	(render): s/soft_box/sharp/box.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_sharp_box): Added.
	We use this instead of guppi_paint_soft_box in order to get a
	crisper look for the lines in our background rules, etc.

2002-01-18  Jon Trowbridge  <trow@gnu.org>

	* Lots of small changes to get rid of compiler warnings,
	most of which are either adding #include <string.h> or
	removing unused functions.

	* plug-ins/plot/pie/guppi-pie-item.c (between_angle): Always
	normalize all angles into the [0, 2pi) interval before comparing.
	Fixes the "can't drag pie slices in the first quadrant in
	gnumeric" bug.
	(guppi_pie_item_in_slice): Since between_angle is now smarter,
	this code can be a bit stupider.

2002-01-18  Jody Goldberg <jody@gnome.org>

	* configure.in : bump the Gnumeric idl version requirement.

2002-01-17  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/text/Makefile.am (guppi_text_la_SOURCES): Add
	init.c back into guppi_text_la_SOURCES... it must have gotten
	deleted by mistake.

2002-01-14  Jon Trowbridge  <trow@gnu.org>

	* libguppitank/guppi-tank-init.c (guppi_tank_shutdown): Don't call
	depricated functions!
	(guppi_tank_exit): Don't call depricated functions!

2002-01-13  Jon Trowbridge  <trow@gnu.org>

	* Added #include <string.h> in a whole bunch of places that needed
	it.

	* Remove a bunch of cruft, mostly involving our currently-broken
	scripting support.  This totally removes any guile dependency, and
	removes the optional python business...  it was all only making
	life hard for people, anyway.  When Guppi gets ported to GNOME2,
	we can use all of their cool new bindings stuff.

	* plug-ins/plot/axis/guppi-axis-view.c (compute_size): Take our
	"shrink-to-fit" factor into account, if necessary.  The text was
	being shrunk, but not the space allocated for the text to be
	drawn.

	* plug-ins/plot/axis/guppi-axis-state.c
	(guppi_axis_state_maximum_span): Added label_scale argument.
	(guppi_axis_state_get_size): Added label_scale argument.

2002-01-08  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-attribute-bag.c
	(guppi_attribute_bag_vset): Doh!  Dereference our va_list* when
	calling va_args.

	* src/libguppiplot/guppi-element-view.c (guppi_element_view_new):
	guppi_attribute_bag_vset now takes a va_list*.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_new): guppi_attribute_bag_vset now takes a
	va_list*.

	* python-modules/Guppi/Makefile.am: Remove data_impl from SUBDIRS.

	* tests/data: Replaced numerous instances of guppi_seq_*_new with
	guppi_seq_*_core_new.
		
	* libguppitank: Replaced numerous instances of guppi_seq_*_new
	with guppi_seq_*_core_new.  (Now I'm getting really lazy in my
	ChangeLogging.  Shame on me.)

	* plug-ins/plot/pie/guppi-pie-state.c (get_slice_offsets):
	s/guppi_seq_scalar_new/guppi_seq_scalar_core_new/.

	* src/libguppidata/guppi-seq.c (get_missing): Added evil
	cross-pseudolib dependency so that our default implementation of
	missing data could call guppi_seq_boolean_core_new.

2002-01-07  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata: Removed all of the data base-type *_new()
	functions that loaded default plug-ins.  That was just a bad idea.

	* src/libguppidataimpl: Libraryified the old data implementation
	plug-ins.

	* plug-ins/plot/linegraph/guppi-linegraph-view.c
	(build_date_series): Re-implemented to work with new way of doing
	things.
	(guppi_linegraph_view_build_path): Look at the ts_data attribute,
	try to do the right thing.

	* plug-ins/plot/linegraph/guppi-linegraph-state.c
	(guppi_linegraph_state_init): Added ts_data attribute for time
	series data.

	* src/Makefile.am: Added all of the libguppidataimpl .lo files to
	libguppi_la_LIBADD.

	* src/demo.c: Changed to call the un-plug-in-ified data type
	constructors directly.

	* src/libguppidata/guppi-price-series.c (cache_valid): The logic
	here was totally broken.  (Exposed by gnome-chart.)

	* src/libguppiplot/guppi-root-group-item.c
	(guppi_root_group_item_destroy): Change our idle into a short
	timeout.
	(button_press_idle_cb): Idle -> short timeout.  Return if we
	already have a pending button press timeout running.  Only do the
	guppi_plot_tool_end stuff if the tool is active.  (This is all
	meant to fix some re-entrancy problems.  It helps, but there are
	still problems.)

	* src/libguppiplot/guppi-plot-tool.c (tool_repeat_handler): Added
	repeat_lock to try to avoid re-entrancy problems.
	(guppi_plot_tool_end): Don't clear the repeater tag first;
	instead, do it after the ->last call.

	* src/libguppiplot/guppi-layout-constraint.c
	(guppi_layout_constraint_add_terms): Use gint as the va_arg type,
	since enums aren't allowed!

	* src/libguppiplot/guppi-color-palette.c
	(guppi_color_palette_set_vcustom): Use gint as the va_arg type
	rather than guint32.

	* src/libguppiuseful/guppi-attribute-flavor.c (boolean_va2p): use
	gint as the va_arg type rather than gboolean.
	(uint32_va2p): Use gint as the va_arg type rather than guint32.
	(Thanks gmorten!)

	* configure.in: Bumped version number.  Removed all of the
	plugin/data_impl Makefiles from AC_OUTPUT, added
	src/libguppidataimpl.

2001-12-28  Simos Xenitellis  <simos@hellug.gr>

	* configure.in(ALL_LINGUAS): Added el for Greek.

2001-12-18  Wang Jian  <lark@linux.net.cn>

	* configure.in(ALL_LINGUAS): Added zh_CN for Simplified Chinese.

2001-11-26  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/pie/guppi-pie-state.c
	(guppi_pie_state_make_config_model): Add some simple config pages.

	* plug-ins/plot/barchart/guppi-barchart-state.c
	(make_config_model): Add a simple config page.

	* plug-ins/plot/compass-box/guppi-compass-box-view.c
	(position_floating): If position is GUPPI_COMPASS_INVALID, hide
	the floating item.

	* src/libguppiplot/guppi-text-block.c (guppi_text_block_text): Add
	a guppi_outside_alloc hint to avoid errors in our memory debugging
	output.

	* src/libguppiplot/guppi-layout-engine.c
	(build_simplified_rule_system): Print a message and return if we
	try to do a layout on an empty system.

	* src/libguppiplot/guppi-group-view.c (make_config_model):
	Revamped for new-style make_config_model.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_make_config_model): Revamped, as below.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_make_config_model): Revamped to account for
	the change in signature for make_config_model.  Passing in a model
	is cleaner, requires less merging, and makes chaining easier.

	* src/libguppiplot/guppi-canvas-group.c
	(guppi_canvas_group_destroy): Properly disconnect all of our
	subobjects from the changed_position signal.

	* src/libguppiplot/guppi-config-dialog.c: Moved from
	libguppiuseful; beefed up and added an optional plot preview.

	* src/libguppiuseful/guppi-useful-init.c
	(guppi_useful_init_without_guile): Allow us to set a default
	verbosity via the GUPPI_VERBOSITY environment variable.

	* src/libguppiuseful/guppi-config-model.c
	(guppi_config_model_add): Added an attribute bag parameter (which
	can be NULL), since we'll be binding to attribute widgets in
	almost all cases.
	(guppi_config_model_add_glade_file): Added.  A convenience routine
	for adding config pages from glade files.
	(guppi_config_model_foreach): Fixed for new signature for iterator
	functions.  If we have a bag, attach it to the widgets we create.

	* src/libguppiuseful/guppi-attribute-flavor.c (guppi_attr_glade):
	Shortened name, from guppi_attribute_flavor_glade_custom_fn, for
	easier typing in those little glade entries.

2001-11-26  Pablo Saratxaga <pablo@mandrakesoft.com>

	* configure.in: Added "az" to ALL_LINGUAS.

2001-11-25  John Gotts  <jgotts@linuxsavvy.com>

	* Guppi.spec.in: Needed two lines removed, one added.  Hardly what I
	  would call broken!  Otherwise cleaned up to help ease maintenance.

2001-11-22  Abel Cheung  <maddog@linux.org.hk>

	* plug-ins/import/import-delimited/Makefile.am: Move the last
	  few unmoved headers to $includedir/gnome-1.0/libguppi/ .

2001-11-20  Jon Trowbridge  <trow@gnu.org>

	* Makefile.am: Take out Guppi.spec and Guppi.spec.in.  They are
	broken, and will just cause trouble.

	* libguppitank/guppi-object-*: Add casts to accomodate our changes
	to the function signatures in GuppiObject.

	* libguppitank/guppi-object.c (guppi_object_build_widget): Add a
	cast for the 2nd arg of our call to item_init.
	(guppi_object_view): Return a gpointer instead of
	GuppiElementView*.

	* libguppitank/guppi-object.h: Don't #include any libguppi
	headers, and remove any reference to libguppi types.  Return a
	gpointer instead of a GuppiElementView* from build and pass a
	GnomeCanvasItem* to item_init instead of a GuppiCanvasItem*.

	* configure.in: Bump our version number to 0.40.2 and our soname
	to 15.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_changed_size): Only emit 'changed_size' if the
	new size != our current size.

	* src/libguppiuseful/guppi-hash.c (guppi_hash_raw): Added parens
	around a ^.

2001-11-19  Jon Trowbridge  <trow@gnu.org>

	* Makefile.am: Comment out stuff related to our old .desktop file.

	* libguppitank/guppi-object-barchart.c (build_bar_data): Added a
	cast to get rid of a compiler warning.

	* src/libguppiplot/Makefile.am: Added Guppi.spec back to the
	build.  This way, someone will tell me if they don't work.
	(libguppiplotinclude_HEADERS): I'd forgotten to add
	guppi-config-dialog.h.

	* src/libguppiplot/guppi-layout-engine.c
	(guppi_layout_engine_remove_geometry): Removed unused variables.
	(guppi_layout_engine_remove_geometry_rules): Removed unused
	variables.

	* src/libguppiplot/guppi-root-group-view.c
	(guppi_root_group_view_destroy): Removed references to old
	config-related code.

	* src/libguppiplot/guppi-root-group-view.h: Removed reference
	to (now-deleted) guppi-configure.h.

	* src/boilermaker.pl: Fixed the quoting we use for include files
	in generated headers.  Also changed how we make opaque objects,
	changing from "gpointer & a priv macro" to "FooPrivate ->priv".

	* src/libguppiplot/guppi-canvas-group.c: Included a missing header
	to silence a compiler warning.

	* plug-ins/plot/guppi-axis-state.c
	* plug-ins/plot/guppi-axis-view.c
	* plug-ins/plot/guppi-frame-state.c
	* plug-ins/plot/guppi-pie-state.c
	* plug-ins/plot/guppi-scatter-state.c
	* src/libguppiplot/guppi-root-group-view.c
	* src/libguppiplot/guppi-root-group-tools.c
	* src/libguppiplot/guppi-element-view.c
	* src/libguppiplot/guppi-group-view.c
	* src/libguppiplot/guppi-element-state.c: Removed old
	configuration code.  Added code related to GuppiConfigModel.

	* src/libguppiuseful/guppi-config-dialog.c
	(guppi_config_dialog_new): Turns a GuppiConfigModel into a
	manipulable dialog.

	* src/libguppiuseful/guppi-config-model.c: Added.  A container for
	configuration information.
	
	* src/libguppiuseful/guppi-config-item.h
	* src/libguppiuseful/guppi-config-item.c
	* src/libguppiuseful/guppi-configure.h
	* src/libguppiuseful/guppi-configure.c: Removed.

2001-11-18  Jon Trowbridge  <trow@gnu.org>

	* build-tools/gen-scm.pl (c_include): More include quoting.

	* src/libguppiplot/build-rule-predef-h.pl: Fix include quoting.

	* src/libguppiplot/build-layout-h.pl: Fix include quoting
	in generated header file.

	* Makefile.am: Remove the .desktop file from the distributed
	files, since we don't ship any application right now.

	* configure.in (LIBGUPPI_INCLUDEDIR): Fixed include dir so that
	the libguppi/ prefix is mandatory when including libguppi headers.
	(The situation remains the same w/ libguppitank headers, though.)

	* plug-ins/plot/pricebars/guppi-pricebars-view.c: Removed a bunch
	of dead code having to do with enforced preferred views, back from
	before we were able to do that in a generic fashion.
	(preferred_range): Make our preferred x-range a function of the
	'preferred_days' attribute, rather than having it just correspond
	to the whole time series.

	* plug-ins/plot/pricebars/guppi-pricebars-state.c
	(guppi_pricebars_state_init): Add 'preferred_days' attribute, an
	integer which records how many days from the end of the time
	series we want to see in our preferred view.

	* plug-ins/plot/text/guppi-text-item.c (render): If our 'gradient'
	flag is set, render the text in a gradientized fashion.  Pure eye
	candy.

	* plug-ins/plot/text/guppi-text-state.c (guppi_text_state_init):
	Added 'gradient' and 'color_final' attributes.

	* src/libguppiplot/guppi-canvas-group.c (position_subitem): Make
	sure our canvas coordinate are properly sorted before using them
	to set our bounding boxes.  This fixes a bunch of off-by-one
	errors in the layout.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_force_preferred_view): Keep track of whether
	or not any of our axes are being forced to the preferred view.
	(vi_changed): If the changes axis isn't being forced to the
	preferred view, but some other axis is, launch an idle function
	that will enforce all preferred views.  This causes things to
	change correctly when one axis has a forced view that is a
	function of another axis, and the second axis changes.
	(guppi_element_view_finalize): Remove any pending view enforcement
	from vi_changed.

	* src/libguppiplot/guppi-view-interval.c
	(guppi_view_interval_init): Set our min, max, and min_width
	parameters to reasonable defaults.
	(guppi_view_interval_set): Enforce our min, max and min_width.
	(guppi_view_interval_set_bounds): Added.  Sets min and max.
	(guppi_view_interval_clear_bounds): Added.  Resets min and max to
	+/- infinity.
	(guppi_view_interval_set_min_width): Added.
	(guppi_view_interval_translate): Enforce min and max bounds.

	* src/libguppiplot/guppi-axis-markers.c
	(guppi_axis_markers_populate_scalar_log): If the min and the max
	are sufficiently close together (i.e. within one factor of the
	base) fall back to using the 'linear' scalar axis markers
	algorithm.
	(populate_dates_quarterly): Label every month with the first
	character in the month's name.  I'm not sure if I like this, but
	it sucks less that what I was doing before.
	(populate_dates_yearly): Don't label every year if we are choosing
	markers for large periods.
	(guppi_axis_markers_populate_dates): Tweak the parameters slightly
	to get a more aesthetic result.

	* src/libguppiplot/guppi-alpha-template.c
	(guppi_alpha_template_gradient_print): Yes, GuppiAlphaTemplates
	are deprecated, but that doesn't mean we still can't have some fun
	with them.  This lets us copy templates into buffers in a
	"gradientized" fashion.  For now, the 'start' parameter is
	ignored.

	* src/libguppidata/guppi-date-indexed.c (get_size_info): Added some
	default size info for GuppiDateIndexed objects.

	* src/libguppidata/guppi-seq.c (import_xml): Properly chain on the
	parent class.

	* src/libguppidata/guppi-data.c (guppi_data_new): Changed the
	class validation warning message to read "Class 'foo' is not fully
	specified".  Calling it "invalid" seemed to freak people out.
	Also, we store the plug-in's code in the GuppiDataClass, so that
	we can use it when exporting xml.
	(guppi_data_export_xml): Use the plug-in code for the Type
	property.
	(guppi_data_import_xml): Don't free the type_name until we know
	we don't need it for any warning messages.

	* src/libguppiuseful/guppi-useful.c: Stripped out the
	initialization code and put it into guppi-useful-init.c.  This
	file is now empty.
	
	* src/libguppiuseful/guppi-useful-init.c: Added, for symmetry with
	the other sublibraries.  This now contains the libguppiuseful
	initialization code.

2001-11-16  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-attribute-widget.c: Added.  Handles the
	details of binding attribute bags to attribute widgets.

	* plug-ins/plot/pie/Makefile.am (plugin_DATA): Added
	guppi-pie-state-config.glade.

	* plug-ins/plot/pie/guppi-pie-state-config.glade: A skeletal glade
	file for pie config info.

	* plug-ins/plot/pie/guppi-pie-state.c (config_widget): Removed a
	lot of old config code, replaced it with this snippet of code.

	* plug-ins/plot/text/guppi-text-state.c (guppi_text_state_init):
	Fix outline_width's attribute type.

	* plug-ins/plot/axis/guppi-axis-view.c
	(guppi_axis_view_label_shrink_to_fit_factor): If we are thrashing
	excessively, don't assert.  Instead, just abort and use whatever
	scale we tried last.

	* configure.in: Inject gnome-1.0 into the header install dir.
	Build makefiles compass-box, image and pricebars.

	* plug-ins/plot/Makefile.am: Added pricebars, image and
	compass-box to the build.

	* plug-ins/plot/pricebars/guppi-pricebars-print.c: Ported to
	revised framework. (Finally!)

	* plug-ins/plot/pricebars/guppi-pricebars-item.c: Ported to
	revised framework.

	* plug-ins/plot/pricebars/guppi-pricebars-view.c: Ported to
	revised framework.

	* plug-ins/plot/pricebars/guppi-pricebars-state.c: Ported to
	revised framework.

	* plug-ins/plot/image: Added.

	* plug-ins/plot/compass-box: Added.

	* src/*/Makefile.am: Changed header install path to start with
	PREFIX/include/gnome-1.0.

	* src/demo.c: Various cleanups.  Added image and compass-box
	samples.

	* src/libguppiuseful/guppi-paths.h: Whitespace.

	* src/libguppiuseful/guppi-metric-entry.c (write_value): Added.
	(guppi_metric_entry_set_pt_value): Push new pt values to the
	widget.
	Also lots of whitespace fixes.

	* src/libguppiuseful/guppi-hash.c (guppi_hash_raw): Fairly
	pointless optimization.

	* src/libguppiuseful/guppi-attribute-flavor.c: Added lots of
	machinery for producing widgets that are bound to attributes.

	* src/libguppiuseful/guppi-attribute-bag.c
	(guppi_attribute_bag_get_flavor): The contents of attr_hash are
	GuppiAttributes, not GuppiAttributeFlavorInfos.  Thinking
	otherwise caused much unhappiness and many segfaults.

	* src/libguppiplot/guppi-pixbuf-stock.c: Removed spew.

	* src/libguppiplot/guppi-layout-engine.c
	(guppi_layout_engine_remove_rule): Don't unref the rule until
	we're done with it.
	(guppi_layout_engine_remove_geometry_rules): Added.
	(guppi_layout_engine_remove_geometry): Changed to call
	guppi_layout_engine_remove_geometry_rules.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_config_widget): Provisionally added.
	(guppi_element_state_new): Don't allow the empty string as a type.
	
	* src/libguppiplot/guppi-canvas-item.c: Whitespace fixes.

	* src/libguppiplot/guppi-chart-plug-in.c: Added.

	* src/libguppiplot/guppi-chart.c: Added.  Fairly experimental.

2001-11-08  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (gather_pairs_cb):
	Changed to render GuppiPixbufs.

	* plug-ins/plot/scatter/guppi-scatter-state.c
	(guppi_scatter_state_get_point_pixbuf): Renamed and changed to use
	GuppiPixbufs.

	* configure.in: Added orbit's cflags/libs for guppi-gnumeric.

	* src/libguppiuseful/guppi-hash.c (guppi_hash_int): Fixed sizeof.
	(guppi_hash_uint): Added.

2001-11-07  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-hash.c (guppi_hash_to_uint): Added.

	* src/libguppiplot/guppi-marker.c: Hacked to be able to use
	GuppiPixbufs as well as GuppiAlphaTemplates for markers.  This is
	transitional --- GuppiAlphaTemplates are being phased out.

	* src/libguppiplot/guppi-pixbuf-stock.c: Added.  Generates
	GuppiPixbuf versions of circles, squares, etc.

	* src/libguppiplot/guppi-pixbuf.c: Added.  Wraps gdk-pixbuf
	with some guppi-specific extensions.

2001-10-30  Jody Goldberg <jgoldberg@home.com>

	* acconfig.h (GUPPI_GNUMERIC_SHLIB) : add.
	* configure.in (GUPPI_GNUMERIC_SHLIB) : add.

2001-10-24  Jon Trowbridge  <trow@gnu.org>

	* configure.in: Bump up the version number to 0.40.1.  Don't
	generate Makefiles for stuff we've dropped from the build.

2001-10-19  Jody Goldberg <jgoldberg@home.com>

	* src/Makefile.am : remove libguppibonobo because it is useless.

2001-10-18  Jon Trowbridge  <trow@gnu.org>

	* configure.in: Change version number to 0.40.0.

2001-10-18  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiplot/guppi-raster-text.c (guppi_raster_text_text) :
	  result needs to be freed.

	* plug-ins/plot/legend/guppi-legend-item.c (update) : this is the only
	  caller.  Free the memory.

2001-10-18  Jon Trowbridge  <trow@gnu.org>

	* src/libguppispecfns/incbet.c (incbd): s/k6/kk6/, s/k7/kk7/ to
	work around incredibly broken behavior of compiler #define-ing k6
	or k7 when building on AMD machines.

2001-10-18  Valek Filippov  <frob@df.ru>

	* plug-ins/import/import-delimited/delim-import-widget.c:
	    added xgettext comments about "ttl", "pre" and "pst".

2001-10-16  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (update): Be
	graceful if item->path == NULL.

2001-10-15  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-print.c (print): Use
	guppi_axis_view_label_shrink_to_fit_factor and
	guppi_axis_view_tick_properties.

	* plug-ins/plot/axis/guppi-axis-item.c (prepare_labels): Use
	guppi_axis_view_label_shrink_to_fit_factor and
	guppi_axis_view_tick_properties.
	(render): Use guppi_axis_view_tick_properties.  Remove the old
	code that tried to deal with partially obscured labels by shifting
	them.  This approach sucked.

	* plug-ins/plot/axis/guppi-axis-view.c
	(guppi_axis_view_tick_properties): Added.  Like
	guppi_axis_state_tick_properties (which it calls), except that it
	takes the view into account and hides marker labels that would
	fall partially off the display.
	(guppi_axis_view_label_shrink_to_fit_factor): Added.  Computes the
	extent to which we need to shrink labels in order to keep them
	from overlapping one another and otherwise causing problems.

	* plug-ins/plot/axis/guppi-axis-state.c (guppi_axis_state_init):
	Turn "shrink_labels_to_fit" on by default.

	* plug-ins/plot/barchart/guppi-barchart-view.c
	(update_axis_markers): Mark row axis labels as "critical".

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_axis_markers): Sort axis markers before
	returning.

	* src/libguppiplot/guppi-axis-markers.c (guppi_axis_markers_sort):
	Added.
	(guppi_axis_markers_add): Reset sorted flag.
	(guppi_axis_markers_add_critical): Added.  A stupid cut&paste of
	guppi_axis_markers_add.

	* src/libguppiuseful/guppi-useful.c: Added.  Gadget for computing
	hash values in a nice way.

2001-10-14  Christian Meyer  <chrisime@gnome.org>

	* AUTHORS: Corrected my email address.

2001-10-14  Stanislav Visnovsky  <visnovsky@nenya.ms.mff.cuni.cz>

	* configure.in: Added "sk" to ALL_LINGUAS.

2001-10-13  Jon Trowbridge  <trow@gnu.org>

	* AUTHORS: Updated.

2001-10-12  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiuseful/guppi-enums.c (guppi_str2compass) : Accept sides
	  as aliases for compass points.

2001-10-12  Jody Goldberg <jgoldberg@home.com>

	* configure.in : bump Gnumeric_Graph idl version again.

2001-10-12  Jon Trowbridge  <trow@gnu.org>

	* src/python-server/Makefile.am: s/GUILE_LDFLAGS/GUILE_LIBS/ (rlb)

	* src/libguppiuseful/guppi-guile.c: Fixed cwdr-no-unwind to
	work with guile 1.3.4, 1.4, 1.5 or 1.6. (rlb)

	* configure.in: Various changes to improve the build w.r.t.
	guile. (rlb)

	* src/libguppiuseful/gnan.c (gnan_init): Add new hack for
	generating NaN, suggested by Morten Welinder.

	* plug-ins/plot/axis/guppi-axis-item.c
	(guppi_axis_item_class_init): Allow per-axis dragging/scaling by
	default.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (render): If we
	have enough points, don't use libart -- connect the dots with a
	faster, uglier algorithm.
	(update): Only construct the ArtSVPPath for paths with few lines.

2001-10-11  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-axis-markers.c
	(guppi_axis_markers_populate_scalar): Don't freak out if our
	request has pos_min >= pos_max.

	* src/libguppiplot/guppi-element-view.c (changed_state): Try to
	set the preferred view if our current view interval is
	pathological.

	* src/demo.c (main): Check if we are in guppi3/src; print a
	warning and terminate if we aren't.
	(layout_elements): Use our barchart demo.

	* plug-ins/plot/linegraph/guppi-linegraph-state.c
	(guppi_linegraph_state_init): Cut default width in half.

	* plug-ins/plot/linegraph/guppi-linegraph-view.c (view_init):
	Added axis markers.
	(preferred_range): Added a simple preferred view.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c
	(guppi_linegraph_item_class_init): Add a basic set of tools.

	* src/libguppiplot/guppi-root-group-item.c
	(guppi_root_group_item_class_init): Disable right-click
	configuration until such time that it sucks a whole lot less.

	* plug-ins/plot/axis/guppi-axis-print.c (print): Set the color
	properly before drawing the edge.

	* plug-ins/plot/axis: Fixed copyrights, removed dead code, etc.

2001-10-10  Jon Trowbridge  <trow@gnu.org>

	* configure.in: Fix library order in LIBGUPPI_LIBS.
	(GUPPI_CURRENT): Incremented. 
	Fixed to make build work if only static python libs are
	available.

	* src/libguppiplot/guppi-group-view.c
	(guppi_group_view_compare_z): Added.
	(guppi_group_view_raise): Added.
	(guppi_group_view_raise_to_top): Added.
	(guppi_group_view_sink_to_bottom): Added.  This is a new api for
	controlling the z-axis/layering of group elements.

	* configure.in (STANDARD_LDFLAGS): Added $(GNOME_PRINT_LIBS).
	Added the linegraph Makefile to AC_OUTPUT.

2001-10-09  Jody Goldberg <jgoldberg@home.com>

	* plug-ins/plot/legend/guppi-legend-item.c (update) : Handle
	  empty strings without crashing.

2001-10-08  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/barchart/guppi-barchart-view.c
	(update_axis_markers): Use percentages as our numeric axis markers
	when showing normalized stacks.
	(guppi_barchart_view_bar_position): Properly position stacked
	bars.

	* plug-ins/plot/barchart/guppi-barchart-state.c
	(guppi_barchart_state_bar_info): Deal with normalized stacks.

	* plug-ins/plot/legend/guppi-legend-view.c (changed_state):
	Recompute our legend's size on state changes.

	* src/libguppiplot/guppi-element-view.c (changed_state): Check if
	we need to force preferred views on a state change.

	* libguppitank/Makefile.am (INCLUDES): Fixes for builddir !=
	srcdir build.

	* libguppitank/guppi-object-barchart.c: Remove reference to
	guppi-seq-data.h.  Fix copyright.

	* configure.in: Build w/ gnumeric support by default.  Require
	bonobo 1.0.8, gnome-print 0.28, gdk-pixbuf 0.11.  Require gnumeric
	idl from 0.71.

	* src/libguppibonobo/guppi-bonobo.c (guppi_bonobo_destroy): #if
	0/#endif out this (unused) function.

	* src/libguppibonobo/guppi-bonobo-view.c: Remove reference to
	guppi-bonobo-canned-demo.h.

	* src/libguppiplot/guppi-element-view.c (vi_changed): Use our
	stored ids to block/unblock the signals.

2001-10-07  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-text-block.c (guppi_text_block_set_font):
	Unset the maximum width when our font changes.

	* src/Makefile.am (SUBDIRS): Removed libguppitank.

	* Makefile.am (SUBDIRS): Added libguppitank.

	* configure.in: Fixed libguppitank.

	* src/libguppiuseful/guppi-paths.c (development_path_hacks): Don't
	force our path hacks when running from inside of libguppitank.

	* src/libguppiplot/guppi-layout-rule-predef.c
	(guppi_layout_rule_new_same_horizontal_center): Added.
	(guppi_layout_rule_new_same_vertical_center): Added.
	(guppi_layout_rule_new_same_center): Added.

	* src/libguppiplot/guppi-root-group-item.c: Remove old, empty
	get_arg/set_arg functions.

	* src/libguppidata/guppi-data-table.c: Make the signature
	of GuppiDataTable's signals less annoying.

2001-10-06  Jon Trowbridge  <trow@gnu.org>

	* src/demo.c: Added a demo of our new, currently very lame &
	broken, line chart plug-in.

	* plug-ins/plot/barchart/guppi-barchart-view.c
	(guppi_barchart_view_bar_position): Add a warning that stacked
	barcharts are not yet supported.

	* src/libguppidata/guppi-data-table.c (validate_class): Added
	some class validation.  Better safe than sorry.

	* src/libguppidata/guppi-data.c (process_pending_op): Check that
	op->op is not NULL before trying to call it as a function.

2001-10-05  Jody Goldberg <jgoldberg@home.com>

	* configure.in : handle the version bump in
	  GNOME_Gnumeric_Graph::Mananager.

2001-10-06  Jon Trowbridge  <trow@gnu.org>

	* configure.in (GUPPI_GNUMERIC_MANAGER_VERSION): Check for
	version 3 of the gnumeric idl.

	* plug-ins/plot/linechart: Added.  A sketch of a line chart that
	observes the same coordinate conventions, etc. as the bar chart.
	Not complete -- just a barely functional shell of an
	implementation.

2001-10-04  Fatih Demir <kabalak@gtranslator.org>

	* configure.in: Added "tr" to the languages list.

2001-10-02  Jody Goldberg <jgoldberg@home.com>

	* guppi-gnumeric/Makefile.am : only create the stamp files if the idl
	  compile was successful.

2001-10-02  Jody Goldberg <jgoldberg@home.com>

	* guppi-gnumeric/guppi-gnumeric.c : some cut and paste support for
	  building as a shared library.  This is unlikely to work because of
	  guile for now.

2001-10-02  Jon Trowbridge  <trow@gnu.org>

	* src/boilermaker.pl: Clean-up.

	* plug-ins/plot/pie/guppi-pie-view.c (guppi_pie_view_max_radius):
	Make maximum radius smaller by an extra edge-width, to try to
	avoid rendering artifacts due to rounding error, etc.

	* src/libguppiplot/guppi-layout-rule-predef.c
	(guppi_layout_rule_new_flush_right): Fixed sign error in
	constraint definition.
	(guppi_layout_rule_new_flush_top): Fixed sign error in
	constraint definition.

2001-10-01  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (query_slack):
	Properly compute our 'marker slack' so that markers that straddle
	canvas refresh regions get rendered properly.

2001-10-01  Jody Goldberg <jgoldberg@home.com>

	* guppi-gnumeric/Makefile.am (CLEANFILES) : no need to use +=

	* src/libguppiuseful/Makefile.am (noinst_HEADERS) : automake 1.5
	  noticed that this was being set twice.

2001-10-01  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (gather_pairs_cb): We
	no longer need to manually center the templates before printing,
	since the base point stuff now works.

	* src/libguppiplot/guppi-alpha-template.c
	(guppi_alpha_template_print): Adjust display coordinates to center
	template on the base point.
	(guppi_alpha_template_auto_crop): Adjust base point when cropping.

	* src/libguppiplot/guppi-color-palette.c
	(guppi_attribute_flavor_color_palette): Adjusted to reflect change
	guppi_attribute_flavor_add_signal_to_forward API.

	* src/libguppiuseful/guppi-attribute-bag.c
	(attribute_callback_marshal_cb): Queue queued signals.
	(guppi_attribute_attach_signals): Handle queued signals.
	(guppi_attribute_detatch_signals): Handle queued signals.

	* src/libguppiuseful/guppi-attribute-flavor.c
	(guppi_attribute_flavor_add_signal_to_forward): Change function to
	allow forwarded signals to be flagged as queued.

	* src/libguppiuseful/guppi-attribute-flavor-private.h: Add
	definition of GuppiSignalsToForward struct.

	* src/libguppiplot/guppi-marker.c (template_triangle): Use
	guppi_alpha_template_new_triangle.
	(template_bar): Use guppi_alpha_template_new_bar.
	(template_half_bar): Use guppi_alpha_template_new_bar.
	(template_filled_diamond): Use
	guppi_alpha_template_new_filled_triangle.

	* src/libguppiplot/guppi-alpha-template.c
	(guppi_alpha_template_new_triangle): Added.
	(guppi_alpha_template_new_filled_triangle): Added.
	(guppi_alpha_template_new_bar): Added.

2001-09-30  Morten Welinder  <terra@diku.dk>

	* (HACKING): Use -f, not bash's -e.

2001-09-29  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-layout-rule-predef.c
	(guppi_layout_rule_new_vertically_adjacent): Fixed a sign error.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_connect_axis_markers): Always connect the view
	interval at the same time as the axis markers.  (Is there a case
	where we wouldn't want to do this?  I can't think of one.)

	* src/libguppidata/guppi-data-socket.c (our_type_check_fn): Always
	accept NULL data.

2001-09-28  Jody Goldberg <jgoldberg@home.com>

	* Makefile.am (SUBDIRS) : move guppi-gnumeric up here so that
	  libguppi can get built first.

	* configure.in : ditto.

	* src/Makefile.am (SUBDIRS) : remove it from here.

2001-09-28  Jon Trowbridge  <trow@gnu.org>

	OK, the party is over.  I'm going to start writing ChangeLog
	entries again.

	* configure.in: Change version to 0.35.666.  The release is
	drawing near.

	* src/libguppiplot/guppi-color-palette.c
	(guppi_color_palette_copy): Added.
	(guppi_color_palette_set): Added for Jody.  Allows one node in the
	palette to be changed, with copy-on-write if necessary.
	(guppi_color_palette_init): Set initial value for meta.
	(guppi_color_palette_set_raw): Use guppi_strdup.
	(guppi_color_palette_set_custom): If color is NULL, default to an
	all-black palette.

	* plug-ins/plot/legend/guppi-legend-state.c
	(guppi_legend_state_init): Make the labels data socket untyped.
	
2001-09-25  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Adjust to the new versioned placement of include
	  files.  We need to explicitly mention glade now.

2001-09-12  Jody Goldberg <jgoldberg@home.com>

	* configure.in : remove XLplots plugin.

2001-09-11  Jody Goldberg <jgoldberg@home.com>

	* configure.in : reflect name change for gnumeric idl file.

2001-09-01  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Make the gal and canvas pixbuf req gnumeric specific

2001-08-17  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Add IDL_FLAGS.  Update Gnumeric checks to test for
	  a specific version of the idl file.  Expand a few extra variables
	  to make the gnumeric tests for centralized.  Clone some code out of
	  gtkhtml to begin support for a shared lib based factory for
	  guppi-gnumeric.  Fix the creation of the oaf files.

	* src/guppi-gnumeric/* : fight bitrot.

2001-07-09  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/text/guppi-text-state.c (prepare_attributes):
	Added chaining.
	(set_attributes): Added chaining.

	* src/libguppiuseful:
	* src/libguppidata: Reorganized header files #includes
	for greater correctness.
	
	* src/libguppiplot/guppi-group-view.c (custom_xml_export): Added.
	Export info about subobjects.

	* src/libguppiplot/guppi-root-group-view.c
	(guppi_root_group_view_new): Added.  Removes need to create
	degenerate state object.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_export_xml): Added.
	(guppi_element_view_import_xml): Added. (Still FIXMEd)
	(guppi_element_view_spew_xml): Added.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_export_xml): Updated; changed semantics of
	custom export to allow multiple nodes.

	* src/libguppiuseful/guppi-unique-id.c (guppi_uniq2str): Changed
	to return an allocated string.

	* src/libguppiuseful/guppi-attributes.c
	(guppi_attributes_export_xml): Return NULL if the attribute table
	is empty.

2001-06-14  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-geometry.c: Fixed some typos resulting
	from my adding of inline API docs. (Thanks Jon Kare.)

2001-06-12  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-geometry.c: Added inline API docs.

2001-06-08  Jon Trowbridge  <trow@gnu.org>

	* configure.in (GNOMECANVASPIXBUF_LIBS): Fix in gnomecanvaspixbuf
	check.  Thanks to Benoit Pelletier.

2001-06-05  Jon Trowbridge  <trow@gnu.org>

	* src/libguppibonobo/guppi-bonobo.c
	(guppi_bonobo_canned_demo_init): Added "void" as function arg.
	(All of these are due to gmorten.)

	* src/libguppiuseful/guppi-python.c (guppi_python_module_init):
	Added "void" as function arg.

	* src/libguppiuseful/guppi-multiview.c (guppi_multiview_new):
	Added "void" as function arg.

	* src/libguppiuseful/guppi-splash.c (gtk_catchup): Added "void"
	as function arg.

	* src/python-server/gnome-python-repl.c (init_readline): Added
	"void" as function arg.

	* src/libguppiuseful/guppi-unique-id.c (init_unique_id): Added
	"void" as function arg.

2001-06-04  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-unique-id.c (init_unique_id): Changed
	to use /dev/urandom rather than /dev/random, on a suggestion from
	Richard Braakman <dark@xs4all.nl>.
	(guppi_unique_id): Forgot to make the "initialized" flag static.
	It must have been pretty late when I originally wrote that code...

2001-06-02  Jon Trowbridge  <trow@gnu.org>

	* configure.in: Notify the user if the API docs will be built.

	* src/libguppidata/guppi-seq.c: Added embedded API docs.

	* src/libguppidata/guppi-seq-scalar.c: Added embedded API docs.

	* src/libguppidata/guppi-seq-boolean.c: Added embedded API docs.

	* src/libguppidata/guppi-data-impl.c: Fixed copyright notice.

2001-06-01  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq-scalar.c (guppi_seq_scalar_ordering):
	Added.  Compute whether a sequence is increasing/decreasing.
	(changed): Reset have_ordering flag on changes.

	* plug-ins/plot/pricebars/guppi-pricebars-item.c (update): Removed
	some debugging spew.

	* src/libguppidata/guppi-seq-scalar.c: Added embedded
	documentation.

2001-05-31  Jon Trowbridge  <trow@gnu.org>

	* src/libguppimath/Makefile.am: Fix race condition (related to
	lex/yacc) that can cause parallel builds to fail.

	* plug-ins/plot/pricebars/guppi-pricebars-item.c (update): Cache
	the entire series in local buffers.
	(render): Heavilty optimized.  The update routine is split into
	two different rendering algorithms: one is for the general case
	and one is for the "small N" case.

	* plug-ins/plot/linegraph/guppi-linegraph-print.c (print): Fixed
	for new API.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (update): For
	smallish paths, use libart to stroke a wide AA line.  Otherwise,
	use the non-AA 1-pixel-think routine.

	* plug-ins/plot/linegraph/guppi-linegraph-view.c
	(build_date_series): Optimized.
	(build_curve): Now called guppi_curve_approximate_to_path, as it
	should, for adaptive sampling.

	* plug-ins/data_impl/price_series/guppi-price-series-core-impl.c:
	Implemented core functions in terms of revised API.

	* plug-ins/data_impl/date_series: Fixed API, made everything
	const-correct, optimizations.

	* plug-ins/data_impl/curve/func.c (v_curve_get): Get rid of call
	to a _01 function.  This should be changed to work with unbounded
	curves.

	* plug-ins/data_impl/curve/poly.c: Changed to use GuppiPolynomial.
	More complex analysis yields better efficiency.
	
	* plug-ins/data_impl/curve: Added the skeleton of an "interpolate"
	curve plug-in.

	* src/libguppispecfns/gamma.c: Changed to use G_INFINITY and the
	related functions.

	* src/libguppispecfns/unity.c: Changed to use G_INFINITY and the
	related functions.

	* src/libguppidata/guppi-seq-impl.c: Changed a /** to /*.

	* src/libguppidata/guppi-price-series.h:
	* src/libguppidata/guppi-price-series.c:
	* src/libguppidata/guppi-price-series-impl.c: Simplified, improved
	API.

	* src/libguppidata/guppi-date-series.h: 
	* src/libguppidata/guppi-date-series.c: 
	* src/libguppidata/guppi-date-series-impl.h: Made API
	const-correct.

	* src/libguppidata/guppi-curve-impl.h: Added approx_to_path to
	vtable.

	* src/libguppidata/guppi-curve.c: Removed the "01" part of the API,
	so that we can handle unbounded curves properly.  
	(guppi_curve_approximate_to_path): Added function arguments.  We
	use the extra information for further optimizations.

	* src/libguppidata/guppi-data.c (guppi_data_newv_by_type): Properly
	hook up signals to our impl.
	(guppi_data_new): Properly hook up signals to our impl.
	(guppi_data_newv): Properly hook up signals to our impl.
	Also added embedded gtk-docs.

	* src/libguppiuseful/guppi-polynomial.c: Lots of changes.  First
	of all, the whole thing has been objectified.  Added
	guppi_polynomial_approximate_path and
	guppi_polynomial_find_bounded_range.  Many small fixes and
	optimizations.
	
	* src/libguppiuseful/gnan.c (g_isinf): Added.  Currently not
	portable.
	(g_finite): Added.  Currently not portable.  Also, introduced
	G_NAN, rather than using NAN.  Added G_INFINITY.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_wide_curve): Cleaned
	up code, added clipping.

2001-05-25  Christian Stimming  <stimming@tuhh.de>

	* src/libguppitank/demo.c: Tested the new barchart options -
	hrmpf, in here everything works fine. GnuCash does segfault,
	though :(

	* src/libguppitank/guppi-object-barchart.[hc]: Added option for
	x-axis and y-axis labels. However, this gives only segfaults so
	far. What's wrong?!?

	* src/libguppitank/guppi-object-pie.c: Added missing font option.

2001-05-14  Christian Stimming  <stimming@tuhh.de>

	* *.cvsignore: ignore *.defs, ignore executables

2001-05-12  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-polynomial.c: Added a whole bunch of
	useful functionality: fairly good root-finding, ability to
	efficiently find min/max over a range, etc.

	* configure.in: Bumped version number.

2001-05-08  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-date-series.c
	(guppi_date_series_class_init): Forgot to properly set
	import_xml_element in the vtable.  Doh.
	(import_xml_element): Fixed typo in first argument type.

	* configure.in: Added --enable-explicit-python-linking argument.

	* src/libguppiuseful/guppi-xml.h: Defined some macros for backwards
	compatibility with old libxmls.

	* src/libguppiuseful/guppi-enums.c: Added a little documentation.
	Mostly as a test.

	* src/libguppiuseful/guppi-enums.h: Fixed enums for gtk-doc.

	* src/libguppidata/guppi-data.c: Fixed comment to not start with
	/**, for gtk-doc.

2001-05-06  Jon Trowbridge  <trow@gnu.org>

	* Everywhere: Removed stray instances of /** ... that had ended
	up in the sources and which were giving gtk-doc fits.

	* src/libguppiplot/guppi-canvas-item.h: Cleaned ups related to
	docs.

	* src/libguppiplot/guppi-canvas-item.c: Added a bunch of embedded
	docs.

2001-05-05  Jon Trowbridge  <trow@gnu.org>

	* Added a whole bunch of build fixes.

	* src/guppi/Makefile.am: Took out app_scm and its broken old-style
	guile bindings.

	* src/guppi/guppi.c: Removed app_scm dependency.

	* configure.in: Remove guppi-api's Makefile line.

	* src/libguppispecfns/const.c: Don't try to define our own NAN;
	use the more portable stuff from gnan.c instead.

	* src/libguppispecfns/unity.c: Use NAN from gnan.c.

	* src/libguppispecfns/gamma.c: Use NAN from gnan.c.

2001-05-04  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-data.c (guppi_data_read_xml_file): If we
	can't read the file, return NULL.  We should have been doing this
	all along.

	* src/libguppiuseful/guppi-xml.c (guppi_xml_document_read_file):
	Do the right thing if the file isn't found or otherwise can't be
	parsed.  This code is still very broken w.r.t. how it handles
	namespaces.

	* src/guppi/guppi-app.c (guppi_app_load_visited_files): Remove
	debug spew.

	* src/guppi-gnumeric/Makefile.am
	(GNUMERIC_GRAPHS_CORBA_GENERATED): Only define this variable if we
	are actually building with gnumeric support.  Otherwise "make
	dist" fails if we don't enable gnumeric support at configure time.
	(And "make distcheck" always fails, since gnumeric support isn't
	the default...)

	* plug-ins/plot/*.defs: Removed all of the old .defs files,
	which are now generated from the .defs.in files.

2001-05-04  Mathieu Lacage  <mathieu@gnu.org>

	Fix misc builddir != srcdir problems.
	* Makefile.am:
	* build-tools/Makefile.am:
	* python-modules/Guppi/Makefile.am:
	* python-modules/Guppi/data_impl/Makefile.am:
	* python-modules/Guppi/plot/Makefile.am:
	* src/guppi-gnumeric/Makefile.am:
	* src/guppi/Makefile.am:
	* src/libguppidata/Makefile.am:
	* src/libguppidataui/Makefile.am:
	* src/libguppieval/Makefile.am:
	* src/libguppiplot/Makefile.am:
	* src/libguppiplot/guppi-canvas-item.h:
	* src/libguppiplot/guppi-chart-type.h:
	* src/libguppiplot/guppi-geometry.h:
	* src/libguppiplot/guppi-group-view.h:
	* src/libguppiplot/guppi-marker.h:
	* src/libguppiplot/guppi-shared.h:
	* src/libguppistat/Makefile.am:
	* plug-ins/data_impl/category/Makefile.am:
	* plug-ins/data_impl/curve/Makefile.am:
	* plug-ins/data_impl/date_series/Makefile.am:
	* plug-ins/data_impl/price_series/Makefile.am:
	* plug-ins/data_impl/seq_boolean/Makefile.am:
	* plug-ins/data_impl/seq_date/Makefile.am:
	* plug-ins/data_impl/seq_integer/Makefile.am:
	* plug-ins/data_impl/seq_object/Makefile.am:
	* plug-ins/data_impl/seq_scalar/Makefile.am:
	* plug-ins/data_impl/seq_string/Makefile.am:
	* plug-ins/data_impl/struct/Makefile.am:
	* plug-ins/import/net-hist-quotes/Makefile.am:
	* plug-ins/plot/XLplots/Makefile.am:
	* plug-ins/plot/axis/Makefile.am:
	* plug-ins/plot/barchart/Makefile.am:
	* plug-ins/plot/boxplot/Makefile.am:
	* plug-ins/plot/frame/Makefile.am:
	* plug-ins/plot/legend/Makefile.am:
	* plug-ins/plot/linegraph/Makefile.am:
	* plug-ins/plot/pie/Makefile.am:
	* plug-ins/plot/pricebars/Makefile.am:
	* plug-ins/plot/scatter/Makefile.am:
	* plug-ins/plot/slinreg/Makefile.am:
	* plug-ins/plot/text/Makefile.am:
	* plug-ins/plot/xybox/Makefile.am:

	move .defs to .defs.in so that the .plugin variable in
	the files are replaced by a full path. This allows you
	to regenerate the binding code when builddir != srcdir.
	* plug-ins/plot/boxplot/guppi-boxplot.defs.in:
	* plug-ins/plot/axis/guppi-axis.defs.in:	
	* plug-ins/plot/barchart/guppi-barchart.defs.in:
	* plug-ins/plot/frame/guppi-frame.defs.in:
	* plug-ins/plot/legend/guppi-legend.defs.in:
	* plug-ins/plot/linegraph/guppi-linegraph.defs.in:
	* plug-ins/plot/pie/guppi-pie.defs.in:
	* plug-ins/plot/pricebars/guppi-pricebars.defs.in:
	* plug-ins/plot/root-group/guppi-root-group.defs.in:
	* plug-ins/plot/scatter/scatter.defs.in:
	* plug-ins/plot/slinreg/guppi-slinreg.defs.in:
	* plug-ins/plot/text/guppi-text.defs.in:
	* plug-ins/plot/xybox/guppi-xybox.defs.in:

2001-05-02  Mathieu Lacage <mathieu@gnu.org>

	- docs/developer-docs/libguppiplot: add this directory and 
	  all the files/directories included in it.
	- docs/deveoper-docs/fdl.sgml Makefile.fragment: add.
	- configure.in: add gtk-doc detection and Makefile for libguppiplot.

2001-05-04  Jon Trowbridge  <trow@gnu.org>

	* src/libguppistat/guppi-regression-polynomial.c
	(guppi_regression_polynomial_recalc): Finished implementing
	poly-regression algorithm.
	(guppi_regression_polynomial_get_polynomial): Added.  Actually get
	a polynomial object corresponding to the calculated model.
	(Cool, huh?)

	* src/libguppiuseful/guppi-polynomial.c
	(guppi_polynomial_export_xml): Adjusted calls to
	guppi_xml_set_propertyf to reflect the change in that function's
	arguments.

2001-05-03  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-price-series.c (import_xml_element):
	Added type-generic XML import.

	* src/libguppidata/guppi-date-series.c (import_xml_element): Added
	type-generic XML import.

	* src/libguppidata/guppi-data.c (guppi_data_export_xml): 
	Fixed to pass impl to impl_class->set_attributes, not
	the corresponding data object.
	
	* configure.in: Add tests related to python linking, to try to
	determine if -lpython should be added to LIBGUPPI_LIBS in
	libguppiConf.sh.  Eventually pkg-config should save us all from
	this misery.  Fix XML checks to use gnome-config rather than
	looking for specific header files.

	* all the Makefile.am: Lots of fixes for the srcdir != builddir
	case.  We still can't make distcheck properly, though.  Damn.

	* plug-ins/plot/pie/guppi-pie-state.c: Added code to import/export
	GuppiPieState as XML.  This is the first small step towards making
	plots XMLable

	* plug-ins/plot/text/guppi-text-state.c: Removed some old
	experimental XML code.

	* plug-ins/import/net-hist-quotes/guppi-net-hist-quotes.c
	(save_to_cache): Use new XML framework to cache quote data.

	* src/libguppiplot/guppi-gsml.c: Fixed includes.

	* src/libguppiplot/guppi-canvas-item.h:
	* src/libguppiplot/guppi-canvas-item.c: Removed broken XML code.
	We probably won't need to serialize these items anyway...
	
	* src/libguppiplot/guppi-element-view.h: 
	* src/libguppiplot/guppi-element-view.c: Added XML import/export
	framework similar to that used by GuppiData.
	
	* src/libguppiplot/guppi-element-state.h: 
	* src/libguppiplot/guppi-element-state.c: Added XML import/export
	framework similar to that used by GuppiData.

	* src/libguppidata/guppi-category.c:	
	* src/libguppidata/guppi-price-series.c:	
	* src/libguppidata/guppi-date-series.c:	
	* src/libguppidata/guppi-date-indexed.c:	
	* src/libguppidata/guppi-struct.c:
	* src/libguppidata/guppi-seq-point.c:
	* src/libguppidata/guppi-seq-boolean.c:
	* src/libguppidata/guppi-seq-categorical.c:
	* src/libguppidata/guppi-seq-integer.c:
	* src/libguppidata/guppi-seq-string.c:
	* src/libguppidata/guppi-seq-scalar.c:
	* src/libguppidata/guppi-seq.c: Modified to use new XML system.
	Removed lots of old, broken, hard-to-understand code.  Replaced
	it with lots of clean, shiny, happy, fun code.

	* src/libguppidata/guppi-data-attribute.c: Added.  Allows GuppiData
	objects to be stored (and properly imported/exported) in a
	GuppiAttributes object.

	* src/libguppidata/guppi-data-impl-plug-in.c
	(guppi_data_impl_plug_in_construct_impl): Save the plug-in's code
	in the GuppiDataImplClass.

	* src/libguppidata/guppi-data-impl.h: Added implementation
	override hooks for XML import/export to GuppiDataImplClass.

	* src/libguppidata/guppi-data.c: Fixed old (broken) approach to
	XML import/export.  Removed lots of overly-complicated code.
	(build_impl_by_code): Added.
	(guppi_data_export_xml): Added.
	(guppi_data_import_xml): Added.
	The list of added/changes stuff goes on.  (This is a nominee in
	the "most vague ChangeLog entry of 2001" competition.)

	* src/libguppidata/guppi-data.h: Modified GuppiData
	and GuppiDataClass definitions, adding new virtual functions
	for the new, improved XML import/export.

	* src/libguppiuseful/guppi-xml.h:
	* src/libguppiuseful/guppi-xml.c: Added.  Convenience routines
	and encapsulation for dealing with XML documents & trees.

	* src/libguppiuseful/guppi-polynomial.h: 
	* src/libguppiuseful/guppi-polynomial.c: Added.  A polynomial
	object that is meant to be both efficient and correct.

	* src/libguppiuseful/guppi-attributes.h: 
	* src/libguppiuseful/guppi-attributes.c: Added.  An XML-streamable
	object that maps different types of data to string keys.

	* src/libguppiuseful/guppi-unique-id.c (guppi_unique_id): 
	Small tweaks to make the unique IDs "more unique".  They are,
	however, still not as unique as they could be.
	
	* src/libguppiuseful/guppi-rgb.c (guppi_str2color_rgba): Added
	code to deal with "#xxyyzz"-type color definitions.

	* src/libguppiuseful/guppi-python.h: Added an #include
	"guppi-guile.h" to work around a namespace collision.

	* src/libguppiuseful/guppi-memory.c: Removed a bunch of broken
	object auditting code.

	* src/libguppiuseful/guppi-debug.c (guppi_FIXME): Added.  A
	wrapper around g_assert_not_reached() that can easily be grepped
	for.

	* src/libguppiuseful/guppi-context-xml.c
	(guppi_context_xml_finalize): Added call to guppi_finalized.

	* src/libguppiuseful/guppi-context-xml.h: Changed to include
	gtk.h.

2001-04-26  Jon Trowbridge  <trow@gnu.org>

	* src/libguppieval/guppi-fit-slr.c: Hacked to use
	GuppiRegressionLinear rather than GuppiSimpleLinreg.

	* src/libguppistat/guppi-regression-polynomial.c: Polynomial
	regression, built on top of GuppiRegression2D.  Unfinished.

	* src/libguppistat/guppi-regression-linear.c: Simple linear
	regression, built on top of GuppiRegression2D.

	* src/libguppistat/guppi-regression2d.c: A base class for
	2d regression classes.  Handles ref counting, changed signals,
	etc.

2001-04-21  Christian Stimming  <stimming@tuhh.de>

	* configure.in: Added option --disable-bonobo.

	* src/libguppitank/guppi-object-barchart.[hc]: Added option to
	show the legend with reversed order. Added frame-view for the
	barchart so that horizontal rulers are shown.

2001-04-13  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-layout.c: Changed to use nicer
	matrix and vector routines.

	* src/libguppiuseful/guppi-matrix.c: Added.  Utility matrix
	routines.

	* src/libguppiuseful/guppi-vector.c: Added.  Utility vector
	routines.
	
2001-04-04  John Gotts  <jgotts@linuxsavvy.com>

	* Guppi.spec.in: Standard Red Hat Linux category.  Encoded current
	hierarchy.  Split devel stuff into -devel package.

2001-04-04  Jon Trowbridge  <trow@gnu.org>

	* src/libguppieval/guppi-var-data.c: Removed test code.

	* src/libguppieval/guppi-var-double.c: Removed test code.

	* src/libguppieval/guppi-var-int.c: Removed test code.

	* src/libguppieval/guppi-var-bool.c: Removed test code.

	* src/libguppieval/guppi-fit-slr.h: 
	* src/libguppieval/guppi-fit-slr.c: Added.  "Proof of concept" for
	GuppiCurveFit, implements simple linear regression in the new
	framework.

	* src/libguppieval/guppi-curve-fit.h:
	* src/libguppieval/guppi-curve-fit.c: Added.  "Control object"
	(not a base class, because you build up instances by connecting
	to its signals) for new curve-fitting framework.

	* src/libguppieval/guppi-parameters.h: 
	* src/libguppieval/guppi-parameters.c: Added.  A bag of GuppiVars.

	* src/libguppidata/guppi-data.c (guppi_data_set): Added.  A
	GuppiData version of gtk_object_set that forwards the arguments to
	the underlying implementation.
	(guppi_data_setv): Added.  A GuppiData version of gtk_object_setv.

	* plug-ins/data_impl/curve/poly.c (sample): Fix polynomial
	evaluation.
	(sample_uniformly): Fix polynomial evaluation.
	(guppi_curve_poly_impl_set_coefficient): Emit "changed" signal on
	coefficient changes.

2001-04-03  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi.c (real_main): Call guppi_eval_init ().

	* src/Makefile.am (SUBDIRS): Added libguppieval.

	* configure.in: Added libguppieval.

	* src/libguppieval: Added the first of my GuppiVar parameter
	code.

2001-04-02  Jon Trowbridge  <trow@gnu.org>

	* configure.in: Increment version to 0.35.4.  This should have
	been done after the last release.

2001-03-31  Jon Trowbridge  <trow@gnu.org>

	* Applied Christian Stimming's stacked-barcharts-in-guppitank
	patch.

2001-03-26  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-rgb.h: Changed some "uint"s to "guint"s
	in the UINT_RGBA_[RGBA] macros.

2001-02-26  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-item.c (prepare_labels): Be more
	careful about checking pointers before we dereference them.

	* src/libguppiplot/guppi-axis-markers.c (populate_dates_yearly):
	Removed (invisible) duplicate year labels.

2001-02-20  Rusty Conover  <rconover@zootweb.com>

	* src/libguppitank/guppi-object-title.c
	(update): New function, preform update function for title objects.
	(guppi_object_title_class_init): added update method to class structure

	* src/libguppitank/guppi-object-barchart.h: Added left_axis_view
	and bottom_axis_view to GuppiObjectBarchart.

	* src/libguppitank/guppi-object-pie.c
	(guppi_object_pie_set_arg): Fixed but when setting the
	ARG_COLORS_RGB opie-data was being freed when opie->colors_rgb was
	supposed to be freed.
	(guppi_object_pie_class_init): added update method to class
	structure
	(update): New function, preform update function for pie charts.
	Refactored pie chart object's build, added: pie_build_data,
	pie_build_labels, and pie_build_colors for generic construction
	routines.
	(build): refactored.

	* src/libguppitank/guppi-object-barchart.c (update): New function,
	preform update function for bar charts.  Refactored construction
	of bar object's build function, added: build_bar_data,
	build_bar_labels, build_bar_colors.
	(guppi_object_barchart_class_init): added update method to class
	structure.
	(build): refactored.

	* src/libguppitank/guppi-object.c (guppi_object_update): New API
	call, forces a GuppiObject to update itself since it data or
	parameters have changed.  This is to emulate the behavior of the
	data changing and the change signal emission.

	
	
2001-02-20  Michael Meeks  <michael@ximian.com>

	* configure.in: Check for bonobo >= 0.37

2001-02-20  Michael Meeks  <michael@ximian.com>

	* src/guppi-gnumeric/corba-graph-manager.c
	(graph_manager_get_type): upd.
	(manager_corba_object_create): kill.
	(graph_manager_new): upd.
	(manager_corba_object_create): kill.
	(corba_implementation_classes_init): move
	(graph_manager_class_init): here & upd.
	(impl_getTypeSelectControl): upd.

	* src/libguppidata/demo.c (main): add cast to
	kill warning.

	* src/libguppidata/guppi-seq-impl.c: include
	stdio.h for printf.

	* src/libguppidata/guppi-price-series.c: ditto
	for sscanf

	* src/libguppibonobo/guppi-bonobo-view.c
	(guppi_bonobo_view_factory): upd.

	* src/libguppibonobo/guppi-embeddable.c
	(guppi_bonobo_embeddable_construct): upd.
	(guppi_bonobo_embeddable_get_type): upd.

2001-02-03  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/text/guppi-text-view.c: Further adapted to use a
	GuppiTextBlock.

	* plug-ins/plot/text/guppi-text-state.c: Further adapted to use a
	GuppiTextBlock.

	* plug-ins/plot/text/guppi-text-print.c (print): Fixed to properly
	gnome-printify text blocks.

	* plug-ins/plot/slinreg/guppi-slinreg-item.c (update): Fixed rotated
	text in label.

	* src/libguppiplot/guppi-gsml.c (guppi_text_block_parse_gsml):
	Added; GSML == "Guppi Stupid Markup Language".  Allows for rich text
	in GuppiTextBlocks and, by extension, text items.

	* src/libguppiplot/guppi-text-tokens.c: Extensive hacking.

	* src/libguppiplot/guppi-text-block.c: Extensive hacking, beyond
	the scope of a ChangeLog entry to describe.

	* src/libguppiplot/guppi-element-print.c
	(guppi_element_print_print): Made the debugging frame a bit more
	elaborate.  It is still #if 0ed out, though.

	* src/libguppiuseful/guppi-context-xml.c
	(guppi_context_xml_add_element_fns): Added; a convenience function
	for defining being and end tag handlers simultaneously.
	(gtk_iter_hack): Something somewhere isn't re-entrant.  So much
	for not locking the UI while parsing XML...
	(guppi_context_xml_parse_memory): Added; for XML-parsing blocks
	of memory.

2001-01-25  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-attributes-xml.c: Added #include to
	silence compiler warning.

	* src/libguppiplot/guppi-text-block.c: Extensive improvements to
	line breaking and layout algorithms.
	
	* src/boilermaker.pl: Fix default copyright.

2001-01-24  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-context-xml.h: Fix header to not
	include <config.h> and thus build properly when included in
	other projects.

2001-01-23  Michael Meeks  <michael@helixcode.com>

	* src/guppi-gnumeric/test.c: more include fixage.

2001-01-23  Michael Meeks  <michael@helixcode.com>

	* src/guppi-gnumeric/guppi-gnumeric.c: sort out include mess.

	* src/guppi-gnumeric/guppi-chart-selector.c: ditto.

2001-01-20  Andrew H. Chatham <andrew.chatham@duke.edu>

	* build-tools/generate.py : Relaxed capitalization assumptions to
	deal with xy_boxplot. Removed some print statements.

	* plug-ins/plot/axis/guppi-axis.defs,
	  plug-ins/plot/barchart/guppi-barchart.defs,
	  plug-ins/plot/boxplot/guppi-boxplot.defs,
	  plug-ins/plot/frame/guppi-frame.defs,
	  plug-ins/plot/legend/guppi-legend.defs,
	  plug-ins/plot/linegraph/guppi-linegraph.defs,
	  plug-ins/plot/pie/guppi-pie.defs,
	  plug-ins/plot/pricebars/guppi-pricebars.defs,
	  plug-ins/plot/slinreg/guppi-slinreg.defs,
	  plug-ins/plot/text/guppi-text.defs,
	  plug-ins/plot/xybox/guppi-xybox.defs : Added ElementView
	  subclass declarations

	* python-modules/Guppi/data_impl/*: Added
	* configure.in : Added data_impl
	
	* src/libguppiuseful/guppi-python.c
	(guppi_python_module_init)
	(python_eval_str)
	(python_eval_file): Beginnings of running each script in a new
	namespace

	* src/libguppiuseful/guppi-python.c
	(PyGuppi_dealloc): Removed extra gtk_object_unref call

	* src/guppi/barchart-demo.py,
	  src/guppi/group-scatter.py,
          src/guppi/group-scatter2.py,
          src/guppi/pbars.py,
	  src/guppi/pie-demo.py,
	  src/guppi/scatter/demo.py: Added. The last two don't work yet.

	* src/guppi/hacked-pie-demo.py: Removed
	
2001-01-16  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-i18n.h: Added.  This is something
	that we can #include to properly define the gettext _() and N_()
	macros w/o needing to include all of gnome.h.  This should help
	improve Guppi's awful compile-times while protecting us from future
	changes in Guppi.
	
	* Applied James LewisMoss' "header-speedup.diff" patch.
	
	* plug-ins/plot/text/guppi-text-state.c
	(guppi_text_state_get_arg): Cast out const to get rid of a
	compiler warning.

	* Applied James LewisMoss' patch "libxml-v2.diff", so that
	Guppi will build with either versions 1 and 2 of libxml.

	* Applied James LewisMoss' patch "cleaning.diff", so that "make
	clean" will do a better job.

	* configure.in: Increment version number.

	* plug-ins/plot/text/guppi-text-item.c: Revamp code to use
	GuppiRasterText and GuppiTextBlock.  The way we did things before
	was very obsolete...

	* plug-ins/plot/text/guppi-text-view.c (calc_width): Calc width
	via the GuppiTextBlock's width fn.
	(calc_height): Calc height via the GuppiTextBlock's height fn.

	* plug-ins/plot/text/guppi-text-state.h: 
	* plug-ins/plot/text/guppi-text-state.c: Redesigned to hold text in
	a GuppiTextBlock.

	* plug-ins/plot/slinreg/guppi-slinreg-item.c (update): Changed to
	account for GuppiRasterText API changes.

	* plug-ins/plot/pie/guppi-pie-item.c (update): Changed to
	account for GuppiRasterText API changes.

	* plug-ins/plot/legend/guppi-legend-item.c (update): Changed to
	account for GuppiRasterText API changes.

	* plug-ins/plot/axis/guppi-axis-item.c: Changed to account for
	GuppiRasterText API changes.

	* src/libguppitank/guppi-object-title.c (build): Make the code
	handle the case of an unspecified title and subtitle with some grace,
	rather than just core-dumping all over the floor...
	
	* src/libguppiplot/guppi-raster-text.h: 
	* src/libguppiplot/guppi-raster-text.c: Opaqueify the object and
	rip out all of the old guts.  This is now a rasterizing front-end
	for a GuppiTextBlock that tries to maintain a (more or less)
	backwards-compatible API.

	* src/libguppiplot/guppi-text-block.h:
	* src/libguppiplot/guppi-text-block.c: A new class that serves as
	a model for a chunk of text.  The API is supposed to be flexible
	enough that ultimately we'll be able to add higher-order functions
	(like multi-line text with line breaks and intra-block font
	changes) without having to change any of the rendering code.

	* src/libguppiplot/guppi-canvas-group.c (position_subitem): Fix
	off-by-one error in bounding box coordinates.

	* src/libguppiuseful/guppi-version.c (guppi_helpers): Added James
	LewisMoss to the list of Guppi Helpers, for his fine work making
	.debs.
	(guppi_copyright): Added FSF Copyright.

	* src/libguppiuseful/guppi-defaults.c (cant_find_default_font):
	Added.  Prints a more intelligble error message when Guppi can't
	find its default fonts.  (Which usually indicates a problem with
	gnome-print.)

2000-12-21  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/slinreg/guppi-slinreg-statviewer.c (sv_set): Check
	if numeric values are NAN.

	* src/libguppistat/guppi-simple-linreg.c
	(guppi_simple_linreg_recalc): Make the calculate of the regression
	stats much more paranoid regarding division by zero and other FP
	exceptions.

	* plug-ins/plot/pie/guppi-pie-common.c: Add #include <config.h>.

	* plug-ins/data_impl/date_series/core.c: s/isnan/g_isnan/.

	* src/guppi/plug-ins.c: Add #include <config.h>.

	* src/guppi/corba_guppi.c: Add #include <config.h>.

	* src/libguppibonobo/guppi-bonobo-print.c: Add #include <config.h>.

	* src/guppi/about.c: Deal with new signature of guppi_copyright
	function.

	* src/libguppimath/guppi-equation-parser.y: Add #include <config.h>.

	* src/libguppimath/guppi-equation-lexer.ll: Add #include <config.h>.

	* src/libguppiplot/guppi-canvas-item.c (render): Remove turn of the
	dharma wheel.

	* src/libguppiuseful/guppi-timer.c (emission_monitor): Turn the
	dharma wheel whenever a "heartbeat" is generated.

	* src/libguppiuseful/guppi-splash.c (guppi_splash_text): Changed
	to properly handle the new signature of the guppi_copyright
	function.

	* src/libguppiuseful/guppi-version.c (guppi_copyright): Change the
	return from a string to a NULL-terminated vector of strings.

	* src/libguppiuseful/guppi-rgb.c: Added #include <config.h>.

	* src/libguppiuseful/guppi-multiview.c: Added #include <config.h>.

	* src/libguppiuseful/guppi-memory.c: Add a bunch of (#if
	0/#endif-ed out) experimental object audit code.

	* src/libguppiuseful/guppi-dharma.c (GUPPI_WHEEL_MANTRA_COUNT):
	Reduced count in a burst of paranoia about performance.

	* src/libguppiuseful/gnan.c (gnan_init): Added more elaborate
	schemes to try to figure out what is NAN in the platform's FP.
	(g_isnan): Added.  Allows us to use a truely awful work-around for
	when all else fails.

	* src/libguppiuseful/guppi-version.c (guppi_helpers): Updated list
	of helpers.

	* AUTHORS (TRANSLATORS): Updated credits.

2000-12-19  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-exit.c: Added #include <guile/gh.h>
	before #include <libguile/gc.h>.  This is needed for guile 1.3.x.

	* src/libguppiplot/guppi-canvas-item.c (update): Added call to
	guppi_dharma_turn_wheel.

	* src/guppi/guppi.c (real_main): Added call to
	guppi_dharma_turn_wheel_automatically.

	* src/libguppiuseful/guppi-dharma.c: Decreased overall count per cycle.
	(guppi_dharma_turn_wheel_automatically): Added.  The wheel-turning
	timeout is no longer installed automatically by guppi_dharma_init.

	* plug-ins/plot/XLplots/guppi-scatter-register.c
	(guppi_scatter_factory): #if 0/#endif-ed out some bad code.

2000-12-18  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/XLplots/guppi-boxplot-register.c: Added header to
	make the compiler happy.

	* plug-ins/plot/XLplots/guppi-linegraph-register.c: Added header to
	make the compiler happy.

	* src/guppi/guppi-app.c: Added header to silence compiler warning.

	* src/libguppiplot/guppi-2d.c (guppi_2d_make_path): Changed an
	ART_MOVETO to an ART_MOVETO_OPEN.
	(guppi_2d_make_optimized_path): Ditto.

	* src/libguppidata/guppi-curve.c
	(guppi_curve_sample_uniformly_to_path): Changed an ART_MOVETO to
	an ART_MOVETO_OPEN.

	* plug-ins/plot/pricebars/guppi-pricebars-item.c (render): Remove
	code, call guppi_pricebars_view_date_range instead.  Code dup is
	the enemy.

	* plug-ins/plot/pricebars/guppi-pricebars-view.c
	(guppi_pricebars_view_date_range): Added.  This is code from
	GuppiPricebarsItem that was also needed by GuppiPricebarsPrint.

	* plug-ins/plot/pricebars/guppi-pricebars-print.c (print):
	Implemented printing.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (update): Changed
	to call guppi_linegraph_view_build_path, which is the entry point
	to some code that used to be in this file.

	* plug-ins/plot/linegraph/guppi-linegraph-view.c
	(guppi_linegraph_view_build_path): Added.  This is code from
	GuppiLinegraphItem that is needed in common with
	GuppiLinegraphPrint, so I've moved it here.

	* plug-ins/plot/linegraph/guppi-linegraph-print.c (print): Set
	line width to zero, to match stupid line-drawing algorithm we are
	currently using in the GuppiLinegraphItem.  Construct our path
	with guppi_linegraph_view_build_path.

	* src/libguppiuseful/guppi-memory.c: Turned off memory tracing by
	default.

	* src/libguppitank/guppi-object-barchart.c
	(guppi_object_barchart_set_arg): Add ARG_ROTATE_X_AXIS_LABELS and
	ARG_ROTATE_Y_AXIS_LABELS.
	(build): Rotate x- and y-axis labels if necessary.

	* plug-ins/plot/axis/guppi-axis-state.c
	(guppi_axis_state_get_arg): Add handling of ARG_ROTATE_LABELS.
	(guppi_axis_state_set_arg): Add handling of ARG_ROTATE_LABELS.
	(guppi_axis_state_class_init): Define ARG_ROTATE_LABELS, as well
	as ARG_LABEL_OFFSET (which I must have forgotten before).

2000-12-17  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq.c (init_xml_object): Properly chain
	our call to the init_xml_object in th eparent class..

	* src/libguppidata/guppi-data.c (guppi_data_set_label): Check to
	see if the new label is actually different than the old label
	before emitting CHANGED_LABEL.

	* src/libguppiuseful/guppi-string.c
	(guppi_string_canonize_filename): Added.  Given a string, this
	copies the string while replacing any characters that aren't
	suitable for appearing in a nice un*x filename (like <, /, etc.)
	with underscores.

	* src/libguppiuseful/guppi-output-xml.c
	(guppi_output_xml_finalize): Added finalization indicator.

	* src/libguppiuseful/guppi-attributes-xml.c
	(guppi_attributes_xml_finalize): Added finalization indicator.

	* src/libguppiuseful/guppi-unique-id.c (guppi_uniq2str): Added
	dash between the two 32-bit pieces of the uid to simplify parsing.

	* src/libguppidata/guppi-data.c (data_save_cb): Added.  A callback
	for a well-behaved "save" operation for the data popup menu.  Saves
	to native XML format.

	* src/libguppiuseful/guppi-unique-id.c (guppi_str2uniq): Added.

	* src/libguppidata/guppi-data.c (build_menu): Added menu item for
	a "rename" operation.
	(rename_cb): Added.  Callback for rename menu item.
	(init_xml_object): Added.  I forgot this earlier...

	* src/libguppitank/guppi-object-title.c
	(guppi_object_title_set_arg): Sink our subobjects.
	(guppi_object_title_finalize): Unref our subobjects on finalization.

	* src/libguppitank/demo2.c (main): Changes to facilitate hunting
	for memory leaks via Guppi's memory trace.

	* src/libguppitank/demo.c (main): Changed to facilitate hunting
	for memory leaks via Guppi's memory trace.

	* src/libguppitank/demo-scatter.c (main): Changes to facilitate
	hunting for memory leaks via Guppi's memory trace.
	
	* src/libguppitank/guppi-object-pie.c (build): Fixed memory leaks.

	* src/libguppitank/guppi-object-scatter.c (build): Fixed memory
	leaks.

	* src/libguppitank/guppi-object-barchart.c (build): Fixed memory
	leaks; properly unref everything that needs to be unrefed at the
	end.

	* src/libguppitank/guppi-object.c (guppi_object_build_widget): We
	add a reference to the GuppiObject when creating a widget, and
	unref when the widget is destroyed.  This simplifies memory
	management of GuppiObjects.
	(object_build): We ref+sink the view that we build, so that it
	won't be sunk later when it is injected into a root group view.
	This gives us better control over our own memory management.

	* plug-ins/plot/axis/guppi-axis-state.c
	(guppi_axis_state_finalize): Fix small memory leak; forgot to free
	state->legend.

	* src/libguppiuseful/guppi-exit.c (final_phase_shutdown): Check to
	see if guppi is active before trying to collect garbage.

	* plug-ins/plot/pricebars/guppi-pricebars-view.c
	(guppi_pricebars_view_class_init): Properly set
	view_class->print_type.

	* plug-ins/plot/pricebars/guppi-pricebars-print.c: Added framework
	for printing.  Still unfinished.

	* plug-ins/plot/XLplots/guppi-linegraph-register.c
	(guppi_linegraph_config): Made to return
	guppi_unimplemented_plot() rather than NULL.

	* plug-ins/plot/XLplots/guppi-boxplot-register.c
	(guppi_boxplot_factory): Make to return guppi_unimplemented_plot()
	rather than NULL.

	* plug-ins/plot/XLplots/guppi-XLplots-common.c
	(guppi_unimplemented_plot): Added.  Returns a valid plot
	consisting only of a text item that reads "Unimplemented".

2000-12-16  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object.c (guppi_object_width): Added.
	(guppi_object_height): Added.
	(priv): Added paranoid GUPPI_OBJECT cast.

	* src/libguppiplot/guppi-root-group-view.c
	(guppi_root_group_view_show_configure_window): Added a "close"
	button to the configure window.

	* src/libguppiplot/guppi-plot-window.c (guppi_plot_window_new):
	Connect to delete_event so that we hide the configure window
	associated to that plot.

	* src/libguppiuseful/guppi-memory.h (guppi_outside_object): Added.
	(guppi_A_contains_B): Added.
	(guppi_finalized): Added.  These three operations let us let us
	explicitly specify the sematics of various memory allocations
	inside of our code.

	* plug-ins/plot/barchart/guppi-barchart-tools.c
	(guppi_barchart_tool_new_cycle_orientation): I was setting the
	tool->name equal to a string constant.  Since this is freed later,
	this is a really bad idea.
	(guppi_barchart_tool_new_cycle_style): Ditto.

	* plug-ins/data_impl/seq_string/guppi-seq-string-core-impl.c
	(guppi_seq_string_core_impl_finalize): Fixed memory leak; properly
	clean up the contents of the GuppiSeqStringCoreImpl.

	* src/guppi/file-open.c (do_import_config): Fix memory leak; unref
	our copy of imp at the end of the function.
	(post_hook): Remove unref from the post_hook, which only gets
	called when OK is clicked.  Moved to the end of do_import_config
	instead.

	* src/libguppiuseful/guppi-stream-preview.c (style_line_font):
	Changed font string to specify iso8859-1 encoding.  Added fallback
	to "fixed".
	(style_line_number_font): Ditto.

	* src/libguppiuseful/guppi-python.c (guppi_python_init): Flag the
	copy of the environment as permanent.

2000-12-16  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_finalize):
	Fix memory leak; unref legend raster-text item.


2000-12-16  Morten Welinder  <terra@diku.dk>

	* configure.in (GNUMERIC_IDLDIR): Add missing directory separator.

	* src/guppi-gnumeric/guppi-chart-selector.c: Fix compilation.

	* src/guppi-gnumeric/corba-graph-manager.c:  Fix compilation.

	* src/guppi-gnumeric/corba-graph-series.c: Fix compilation.

	* src/libguppiuseful/guppi-python.c (guppi_python_init): Copy
 	environment because Python is broken.


2000-12-15  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-state.c
	(guppi_scatter_state_class_init): The parent class was being set
	to type GTK_TYPE_OBJECT rather than GUPPI_TYPE_ELEMENT_STATE, so
	all of our chaining operations were failing... in particular the
	finalization, resulting in a memory leak.  How I could have gone
	so long without noticing this, I don't know.
	(guppi_scatter_state_init): Fix memory leak; properly ref and sink
	our stock scatter styles.

	* plug-ins/plot/scatter/guppi-scatter-item.c
	(guppi_scatter_item_class_init): Set the item_class_toolkit the
	new way.

	* plug-ins/plot/pricebars/guppi-pricebars-item.c
	(guppi_pricebars_item_class_init): Set the item_class_toolkit the
	new way.

	* plug-ins/plot/pie/guppi-pie-item.c (guppi_pie_item_class_init):
	Set the item_class_toolkit the new way.

	* plug-ins/plot/barchart/guppi-barchart-item.c
	(guppi_barchart_item_class_init): Set the item_class_toolkit w/
	our convenience function.

	* plug-ins/import/import-delimited/guppi-delimited-importer.c
	(guppi_delimited_importer_import): Fixed memory leak; unref our
	data struct after calling the iter_fn on it.

	* src/libguppiplot/guppi-canvas-item.c
	(guppi_canvas_item_finalize): Fixed memory leak; unref our item
	toolkit.

	* src/libguppiplot/guppi-style.c (guppi_style_stock_alien): Flag
	stock styles as permanent.
	(guppi_style_stock): Flag stock styles as permanent.

	* src/libguppiplot/guppi-shared.c (guppi_shared_get_type): Flag
	our connection graph as permanent.

	* src/libguppiplot/guppi-root-group-item.c
	(guppi_root_group_item_class_init): Set item class toolkit with
	guppi_canvas_item_class_set_item_class_toolkit.

	* src/libguppiplot/guppi-plot-window.c (add_item_tools_iter_fn):
	Fixed memory leak; added a callback to unref toolkits when the
	associated button is destroyed.

	* src/libguppiplot/guppi-plot-toolkit.c
	(guppi_plot_toolkit_foreach): Added.
	(guppi_plot_toolkit_add_to_toolbar): Fixed memory leak; added a
	destructor callback for our tb_info structs.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_newv): Flag plug in code as permanent.

	* src/libguppiplot/guppi-canvas-item.c
	(guppi_canvas_item_class_set_item_class_toolkit): Added.  A
	convenience function for setting the default item toolkit of a
	GuppiCanvasItemClass.  This helps memory debugging by also
	properly flagging the various tools as permanent allocations.
	
	* src/libguppidata/guppi-struct-impl.c (v_size_in_bytes):
	s/g_strfreev/guppi_strfreev/

	* src/libguppidata/guppi-seq-categorical.c
	(guppi_seq_categorical_finalize): Fixed memory leak; properly
	deallocate the frequency table.

	* src/libguppidata/guppi-data.c (build_impl_by_name): Fixed memory
	leak; stopped an extraneous data object from being allocated on
	every call.  How this bug crept in, I don't know.

	* src/libguppidata/guppi-data-tree.c
	(guppi_data_tree_node_destroy_children): s/while/if.  An obvious
	brain-cramp.
	(guppi_data_tree_node_destroy_downhill): Added.
	(guppi_data_tree_finalize): Fixed memory leak; nodes are now
	properly deallocated.
	(guppi_data_tree_main): Added a shutdown function to deallocate
	the main tree on exit.

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Added call to guppi_paths_init.

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_finalize):
	Fixed memory leak.

	* src/libguppiuseful/guppi-plug-in-spec.c
	(guppi_plug_in_spec_finalize): s/g_strfreev/guppi_strfreev/
	(do_spec_preloads): Fix memory leak; free path.
	(do_spec_preloads): Fix memory leak; free path.
	(guppi_plug_in_spec_shutdown): Add call to
	guppi_plug_in_path_clear.

	* src/libguppiuseful/guppi-paths.c (guppi_paths_init): Added.
	Registers a function that cleans up after the various path lists
	on exit.
	(guppi_logo_graphic_path): Flag alloc as permanent.
	(gnome_guile_repl_path): Flag alloc as permanent.

	* src/libguppiuseful/guppi-guile.c (scm2stringv): Copy our string,
	so that it can be deallocated with guppi_free.

	* src/libguppiuseful/guppi-exit.c (final_phase_shutdown): Added a
	call of scheme's GC right before exiting.  This helps make sure
	that the maximum amount of stuff is deallocated, for
	memory-tracing purposes.

	* src/libguppiuseful/ggraph.c (g_graph_free): Added.

	* src/libguppiuseful/guppi-memory.h: Changed macro definitions to
	make them #ifdef-able.  Added guppi_realloc and guppi_renew.

2000-12-14  Jon Trowbridge  <trow@gnu.org>

	* throughout: Changed standard glib memory alloc and free calls
	(i.e. g_malloc, g_new, g_strdup, etc.) to the guppi memory-tracing
	versions (guppi_malloc, guppi_new, guppi_strdup, etc.).

	* src/libguppiuseful/guppi-memory.h:
	* src/libguppiuseful/guppi-memory.c: Added.  Macros and functions
	that trace memory usage and helping to find memory leaks.

2000-12-12  Jon Trowbridge  <trow@gnu.org>

	* build-tools/gen-scm.pl (define_new_smob_type): Fixed a huge
	memory leak in the guile bindings; we need to sink objects that
	we store in a smob to keep them from being leaked.

	* Changed all gtk_object_ref and gtk_object_unref calls into
	guppi_ref and guppi_unrefs.

	* src/libguppiplot/guppi-layout.c (guppi_layout_connect_geometry):
	Got rid of old abusive-geometry-hack-using code, call
	guppi_geometry_connect_to_layout instead.
	
	* src/libguppiplot/guppi-geometry.c
	(guppi_geometry_connect_to_layout): Added.  The abusive hack has
	been removed; now GuppiGeometry is fully opaque.  Also, added code
	to watch for an attach layout's demise... we do this to avoid
	circular reference problems.
	(guppi_geometry_disconnect_from_layout): Modified for opaqueness.

	* src/guppi/guppi.c (main): Add a --refcount-debug command line arg,
	which activates the new refcount debugging options defined in
	guppi-convenient.c.

	* src/libguppiuseful/guppi-convenient.c: Added refcount debugging.
	Make guppi_ref, guppi_unref and guppi_sink into macros that carry
	extra information for logging purposes.  Defined guppi_ref_fn,
	guppi_unref_fn and guppi_sink_fn for when we really need a
	function (like for passing as a function pointer).

	* src/libguppiuseful/gnan.c: s/neg/signbit/.
	(gnan_init): Added test that sizeof (double) == 8 before we engage
	in any union trickery.

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Call gnan_init ().

	* plug-ins/data_impl/date_series/core.c: Changed to use gnan.h
	rather than other hacks.

	* src/libguppiuseful/gnan.c: Added.  An attempt to define NAN in a
	portable way.

2000-12-11  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/curve/poly.c: Added.  An optimized
	implementation of polynomial functions.  Certain algorithms are
	currently only fully implemented for low-degree polynomials; this
	needs to be remedied.

	* src/libguppidataui/guppi-data-tree-view.c (build_data_popup):
	Vastly simplified -- now just calls guppi_data_build_menu.  Lots
	of other cruft has been removed, or has been moved into GuppiData
	(where it belongs).

	* src/libguppidata/guppi-seq-scalar.c (info_display): Add a simple
	info display that shows various descriptive statistics.

	* src/libguppidata/guppi-data.c (guppi_data_build_menu): Added.
	Construct a menu with options appropriate for that data type; this
	is used by the popup in the GuppiDataTreeView.
	(build_menu): Added.  A nice set of default operations appropriate
	for all data types.
	(guppi_data_info_display): Added.  Construct an appropriate info
	display.

	* src/libguppidata/guppi-data.h: Added build_menu and info_display
	to GuppiDataClass struct.

	* src/libguppidata/guppi-data-impl.h: Added build_menu and
	info_display to GuppiDataImplClass struct.

2000-12-11  Morten Welinder  <terra@diku.dk>

	* doc/developer-docs/guppi-api/Makefile.am (TARGET_DIR): Delete
 	extraneous "=".

	* plug-ins/data_impl/date_series/core.c
 	(guppi_date_series_core_impl_class_init): Provide a reasonable
 	portable NAN and g_assert that it really is isnan().

	* src/libguppimath/guppi-equation-parser.y (yyerror): Prototype.

	
2000-12-09  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-tools.c
	(guppi_scatter_toolkit_default): Fixed default toolkit's name.

	* plug-ins/plot/pricebars/guppi-pricebars-tools.c: Added.  Defines
	a default pricebars toolkit.

	* plug-ins/plot/pricebars/guppi-pricebars-item.c
	(guppi_pricebars_item_class_init): Added a default pricebars
	toolkit.

	* plug-ins/plot/xybox/guppi-xybox-view.c (pref_x_range,
	pref_y_range): Added preferred range calculations.

	* plug-ins/plot/pricebars/guppi-pricebars-view.c (fix_y_bounds):
	Added assert to keep us from calling obsolete pricebar-specific
	enforced view code.
	(preferred_y_range): Added more paranoid error checking.
	(guppi_pricebars_view_init): Deactivated obsolete enforced view
	option.

	* plug-ins/plot/pricebars/guppi-pricebars-state.c: Added support
	for GtkObject args.

	* plug-ins/plot/axis/guppi-axis-view.c (changed): Recalc natural
	size on view changes.

	* plug-ins/import/import-delimited/init.c: Removed unused
	our_widget () function.

	* plug-ins/import/net-hist-quotes/guppi-net-hist-quotes.c
	(import): Only re-write price data to cache if we actually managed
	to import new data.  Try to respond more gracefully to being
	unable to connect to the server.

	* plug-ins/import/net-hist-quotes/net-common.c (good_read): Handle
	events mid-read to keep GUI from freezing.
	(good_write): Handle events mid-write to keep GUI from freezing.

	* src/guppi/scatter-demo.scm: Hide the annoying line connecting
	the scatter markers.

	* src/guppi/pbars.scm (show-stock-chart): Use our new generic
	force-preferred-y-view method, rather than the hacked-up
	pricebars-only version.

2000-12-08  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-axis-markers.c (populate_dates_monthly):
	Removed excess whitespace from strftime string.
	(populate_dates_quarterly): Fixed strftime string.
	(populate_dates_yearly): Fixed strftime string.
	(guppi_axis_markers_populate_generic): Added more checking of the
	inputs in the case of a GUPPI_AXIS_DATE.  Don't do anything if the
	two given bounds aren't both proper julian dates.

	* src/libguppidata/guppi-data-importer.c
	(guppi_data_importer_newv): Added.
	(guppi_data_importer_new): Added a mechanism to pass in a list of
	args with the constructor.

	* src/libguppiuseful/guppi-context-xml.c (gtk_iter_hack): A small
	internal function to periodically handle pending gtk events.  We
	don't want to the GUI to freeze when processing large XML files.
	(guppi_context_xml_process_characters): Call gtk_iter_hack ().
	(guppi_context_xml_process_begin_element): Call gtk_iter_hack ().

	* src/libguppiuseful/guppi-guile.c (guppi_guile_init): Changed a
	g_warning into a g_print.  I hate anything that messes with my
	--g-fatal-warnings.


2000-12-04  Michael Meeks  <michael@helixcode.com>

	* src/libguppibonobo/guppi-bonobo.c (guppi_bonobo_canned_demo_init):,
	(guppi_bonobo_factory): update to GenericFactory.


2000-12-02  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/boxplot/guppi-boxplot-item.c
	(guppi_boxplot_item_class_init): Set uses_vp_coordinates to TRUE.

	* plug-ins/plot/axis/guppi-axis-item.c
	(guppi_axis_item_class_init): Set uses_vp_coordinates to TRUE, so
	the stock tools will (once again) work properly with axes

	* plug-ins/plot/pricebars/guppi-pricebars-item.c (render):
	Immediately bail out of any rendering on an empty
	GuppiPriceSeries.

	* plug-ins/plot/pricebars/guppi-pricebars-view.c
	(preferred_x_range): Don't express a range preference if our
	series is empty.  It causes bad things to happen.
	(preferred_y_range): Ditto.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c
	(update_date_series): Do the right thing (i.e. nothing) if our
	GuppiDateSeries is empty.
	(update): Check that item->path is non-NULL before calling
	guppi_canvas_item_vpath_vp2c ().

	* plug-ins/data_impl/date_series/calc-extra.c (movavg_bounds):
	More gracefully handle the case of an empty movavg->ser.

	* plug-ins/import/net-hist-quotes/guppi-net-hist-quotes.c
	(import): Added better error handling, so that things will proceed
	(relatively) smoothly when trying to import when not connected to
	the net.

	* src/libguppidata/guppi-price-series.c
	(guppi_price_series_get_range): I'd forgotten to return a value
	properly here.  Thank goodness for compiler warnings.

	* src/libguppidata/guppi-date-indexed.c
	(guppi_date_indexed_empty): Added.  This is the kind of
	convenience function that I love.
	(guppi_date_indexed_nonempty): Added.
	(guppi_date_indexed_size): Immediately return zero on
	guppi_date_indexed_empty ().

2000-11-30  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi-app.c (guppi_app_setup_menus): Added menu item
	for price bars demo.

	* build-tools/generate.py (header_template): A hack: Python
	typedefs "destructor", which is used as an arg name in some of the
	guile 1.4 headers.  To work around this, we re-order some includes
	to make sure that the guile headers get processed first.

	* src/libguppiuseful/Makefile.am (CLEANFILES): Add
	auto-genererated code to cleanfiles.

	* src/libguppiuseful/guppi-plug-in-spec.c
	(process_spec_exported_symbols): Remove unused variable decl,
	silencing warning.

	* src/libguppiuseful/guppi-dialogs.c: Fix includes to silence
	warnings.

	* src/libguppiuseful/guppi-debug.c: Fix includes to silence warnings.

	* plug-ins: Changed a bunch of the .plugins files to use
	ExportedSymbol declarations, rather than SchemePreload, to export
	symbols to guile before the plug-in has actually loaded.

	* src/libguppitank/guppi-object.c (guppi_object_build_widget): As
	an experiment, changed resize semantics of GuppiObject root items
	to ROOT_GROUP_RESIZE_FILL_SPACE.

	* src/libguppitank/guppi-object-scatter.c (build): Added
	guppi_element_view_set_[xy]_axis_marker_type () calls, fixing a
	bug reported by Bill Gribble.

	* src/libguppitank/guppi-object-pie.c (item_init): Removed some
	debug spew.

	* src/libguppidata/guppi-curve-impl.h: Added approx_to_path hook
	for PL-approximations.

	* src/libguppidata/guppi-curve.c
	(guppi_curve_approximate_to_path): Added a method for
	implementation-driven piecewise linear approximations with bounded
	error.  Not really implemented now.

	* src/libguppiuseful/guppi-plug-in-spec.c (parse_spec_file): Added
	handling for ExportedSymbol entries in .plugin files.
	(process_spec_exported_symbols): If we have guile, define any
	exported symbols to be guile-autoloaders.

	* src/libguppiuseful/guppi-guile.c
	(guppi_scm_define_autoloaded_symbol): Added.  Associates a
	function name with a plug-in, and forces that plug-in to be loaded
	before calling the function the first time.

	* src/libguppiuseful/guppi-guile-boot.scm: Commented out broken
	guppi-autoload macro.

2000-11-27  Michael Meeks  <michael@helixcode.com>

	* configure.in: remove guppi-gnumeric.oafinfo handling

	* src/libguppibonobo/guppi-bonobo.c
	(guppi_bonobo_canned_demo_init): upd.

	* src/guppi-gnumeric/guppi-gnumeric.c
	(guppi_chart_selector_factory_init): upd.

	* src/guppi-gnumeric/Makefile.am (oaf_DATA): upd.

	* src/libguppibonobo/Makefile.am: upd.

	* src/libguppibonobo/GNOME_Guppi.oafinfo: upd.

	* src/guppi-gnumeric/GNOME_Gnumeric_Graph.oafinfo: upd.


2000-11-26  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/pricebars/guppi-pricebars-item.c (render): Changed
	to use timecodes, and is thus not quite as fragile as the old
	code.  Still sort of fragile, though.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (update): Revised
	to examine the type of the associated data, and to generate an
	ArtVpath in a way that take that information into account.  We now
	support linegraph-drawing for a pair of GuppiSeqScalars (which is
	what we've always handled) as well as GuppiDateSeries and
	GuppiCurves.  The switch-on-type logic is a bit unaesthetic, but
	it does produce a very nice "do-what-I-mean" effect.

	* plug-ins/plot/linegraph/guppi-linegraph-view.c: Removed destroy
	function.

	* plug-ins/plot/linegraph/guppi-linegraph-state.c
	(guppi_linegraph_state_init): Added a shared data object bound to
	SHARED_DATA tag.
	(guppi_linegraph_state_data): Added.
	(guppi_linegraph_state_set_data): Added.

	* plug-ins/data_impl/price_series/guppi-price-series-core-impl.c
	(v_ps_get_range): Fixed to support timecoding.

	* plug-ins/data_impl/date_series/core.c (v_ds_get_range): Fixed to
	support timecoding.

	* plug-ins/data_impl/date_series/calc.c: Added some preliminary
	code for cacheing.

	* plug-ins/data_impl/curve/calc.c (v_curve_clamp): Implemented a
	simple bbox-clamping heuristic for when the curve is a function.

	* src/libguppiplot/guppi-basic-tools.c (reframe_cb): Fixed a
	long-standing bug in the reframe tool, which caused reframing to
	not work properly when doing a "frame-by-center" operation.

	* src/libguppidata/guppi-price-series-impl.h: Changed the
	signature of the get_range hook to use timecodes.

	* src/libguppidata/guppi-price-series.c: Removed a lot of that
	PRICE_JULIAN nonsense.  The (much more sensible)
	timecoded-approach makes all of that obsolete.
	(guppi_price_series_get_range_timecoded): Added a timecoded
	version of the get_range function.
	(guppi_price_series_get_range): Reduced to a special case of the
	timecoded version of this function.

	* src/libguppidata/guppi-date-series-impl.h: Changed signature of
	get_range hook to handle the timecoded case by default.

	* src/libguppidata/guppi-date-series.c
	(guppi_date_series_get_range_timecoded): Added.  Stuff julian
	dates and values for a date range into two buffers.
	(guppi_date_series_get_range): Reduced to a special case of
	guppi_date_series_get_range_timecoded.

	* src/libguppidata/guppi-curve-impl.h: Add clamp, a virtual
	function hook for guppi_curve_clamp_to_bbox, to our GuppiCurveImpl
	struct.

	* src/libguppidata/guppi-curve.c (guppi_curve_clamp_to_bbox):
	Added.  Code to select a subinterval of a parameter interval
	eliminating regions that lay outside of the bounding box.  In
	general, this is tricky to do.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_wide_line_alt):
	Added -- an experimental bit of code for non-AA wide lines.  Not
	totally satisfactory.

	* src/libguppiuseful/guppi-fn-wrapper.c
	(guppi_fn_wrapper_eval_d__d_bulk): Added.


2000-11-22  Jon Trowbridge  <trow@gnu.org>
	
	* plug-ins/data_impl/date_series: Added two initial DateSeries
	implementations -- a "core" implementation which is just a wrapped
	array of doubles, and a "calc" implementation that channels API
	calls into provided callbacks.

	* plug-ins/plot/text/guppi-text-state.c: Implemented
	write_xml_attributes (), prepare_xml_attributes () and
	init_xml_object (), as a test case for XML read/write of
	GuppiElementState derivatives.

	* src/libguppiplot/guppi-plot.defs: Added bindings for the various
	spew_xml functions, for testing/debugging purposes.

	* src/libguppiplot/guppi-canvas-item.h: 
	* src/libguppiplot/guppi-canvas-item.c: Added XML read/write
	infrastructure.

	* src/libguppiplot/guppi-element-view.h:
	* src/libguppiplot/guppi-element-view.c: Added XML read/write
	infrastructure.

	* src/libguppiplot/guppi-element-state.h:
	* src/libguppiplot/guppi-element-state.c: Added infrastructure for
	reading/writing an XML description of an element's state.

	* src/libguppidata/guppi-data-init.c (guppi_data_init): Add
	initializing call to guppi_date_series_get_type ().

	* src/libguppidata/guppi-seq-point-impl.h: Added get_many slot to
	vtable.

	* src/libguppidata/guppi-seq-point.c (guppi_seq_point_get_many):
	Added.

	* src/libguppidata/guppi-date-series-impl.h: Back-end
	* src/libguppidata/guppi-date-series-impl.c: Back-end
	implementation base type for GuppiDateSeries.

	* src/libguppidata/guppi-date-series.h:
	* src/libguppidata/guppi-date-series.c: A front-end for a
	date-indexed scalar time series.

	* src/libguppiuseful/guppi-unique-id.h: 
	* src/libguppiuseful/guppi-unique-id.c: Added.  Code for
	generating and otherwise dealing with 64-bit unique IDs.  We are
	going to use these uids to tag data objects, plot element objects,
	etc.

	* src/libguppiuseful/guppi-attributes-xml.c
	(guppi_attributes_xml_declare_uint32): Added a uint32 type for
	attributes.
	(guppi_attributes_xml_get_uint32): Added.
	(guppi_attributes_xml_set_uint32): Added.
	(guppi_attributes_xml_declare_boolean): Added a boolean type for
	attributes.
	(guppi_attributes_xml_get_boolean): Added.
	(guppi_attributes_xml_set_boolean): Added.
	(ac_chars_value): Added conversion routines for uint32 and boolean
	types.

	* src/libguppiuseful/guppi-output-xml.c
	(guppi_output_xml_attribute_start): Added.  These four are
	convenience function for outputting "extended attributes" into
	XML.
	(guppi_output_xml_attribute_end): Added.
	(guppi_output_xml_attribute): Added.
	(guppi_output_xml_attributef): Added.

2000-11-18  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/struct/guppi-struct-core-impl.c
	(v_struct_foreach): Hacked foreach to iterate over elements in the
	order that they were added, rather than in a random order.  This
	is nice because, among other things, it insures that when you
	write out an object to XML and the re-read it, all of the subdata
	is in the same order as before.

	* src/libguppidata/guppi-data-init.c (guppi_data_init): Added call
	to guppi_struct_get_type () to our initialization routine.

	* src/libguppidata/guppi-struct.c: Added XML input and output
	functions.

	* src/libguppidata/guppi-seq-string.c: Added XML input and output
	functions.

2000-11-17  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object.c (guppi_object_new): Moved
	sections of the code into static functions typename2object () and
	object_build ().
	(guppi_object_newv): Added at the request of our friends at
	Gnumatic.

	* plug-ins/data_impl/struct/guppi-struct-core-impl.c: Added
	implementation of guppi_struct_foreach_subdata vfunction.

	* src/libguppidata/guppi-struct-impl.c: Added a default
	implementation of the guppi_data_foreach_subdata virtual function,
	implemented in terms of the guppi_struct_foreach_subdata
	definition.

	* src/libguppidata/guppi-struct.c: Hacked to use the new subdata
	functions.  This cleans things up somewhat.
	(guppi_struct_foreach_subdata): Added, to replace the annoying old
	function that returned a GList.

	* src/libguppidata/guppi-data-tree.c
	(guppi_data_tree_node_handle_subdata): Hacked to use new subdata
	functions.

	* src/libguppidata/guppi-data-impl.h: Added the foreach_subdata
	function to the GuppiData vtable.  Added a CHANGED_SUBDATA signal.

	* src/libguppidata/guppi-data.c: Fixed up the subdata API,
	removing the broken concepts of "local" and "global" subdata and
	shifting subdata to be purely implementation-dependent.  Also,
	added more agressive type-checking of arguments.  Connected to
	listen for implementation's CHANGED_SUBDATA signal.

2000-11-16  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/pricebars: A rough draft of a plug-in for
	plotting price bars.

	* plug-ins/import/net-hist-quotes/via-yahoo.c (via_yahoo): Check
	validity of date before spewing out the "incomplete record"
	message.

	* plug-ins/import/native-XML/init.c (guppi_plug_in): Set import
	files flag.

	* plug-ins/import/import-delimited/init.c (guppi_plug_in): Set
	import files flag.

	* plug-ins/plot/scatter/guppi-scatter-view.c
	(guppi_scatter_view_class_init): Remove cruft from old axis
	scheme.

	* plug-ins/plot/barchart/guppi-barchart-view.c
	(guppi_barchart_view_init): Initialize bar chart axes properly.
	(update_markers): Handle NULL state properly.
	(update_x_axis_markers): Handle NULL state properly.
	(update_y_axis_markers): Handle NULL state properly.  Calls to
	these functions w/ NULL state can occur when calling our axis
	initialization functions in guppi_barchart_view_init () during
	construction, before a corresponding GuppiElementState object has
	been assigned.

	* src/libguppiplot/guppi-view-interval.c
	(guppi_view_interval_set): Changed to sort our inputs with
	guppi_2sort ().  What good are convenience functions if you don't
	use them?

	* src/libguppiplot/guppi-element-view.c: Fairly major brain
	surgery.  Previously, axis markers were tied to specific plot
	types in a fairly awkward and inflexible way.  Now, we can specify
	x- and y-markers for any plot type in a way that gives us finer
	control.  These changes also simplify things somewhat, which is
	always a good sign that we are on the right track.
	(guppi_element_view_x_axis_marker_type): Added.
	(guppi_element_view_y_axis_marker_type): Added.
	(do_x_markers): Modified to call
	guppi_axis_markers_populate_generic () based on value of
	x_axis_marker_type.
	(do_y_markers): Same as previously, but for the y-axis.
	(x_vi_changed): Call do_x_markers based on value of
	x_axis_marker_type.
	(y_vi_changed): Ditto, for y.
	(guppi_element_view_init): Initialize our marker types to
	GUPPI_AXIS_NONE.  Removed initialization code related to the old
	way of doing things.
	(view_state_change_cb): Handle marker updates by type.

	* src/libguppiplot/guppi-canvas-item.c
	(guppi_canvas_item_x_vp2c_d_bulk): Added.  A single-variable
	"plural" coordinate transformer.
	(guppi_canvas_item_y_vp2c_d_bulk): Added, same as previous.

	* src/libguppiplot/guppi-axis-markers.h: Added a new axis marker
	type enum.

	* src/libguppiplot/guppi-axis-markers.c
	(guppi_axis_markers_populate_scalar): Switched args to take a
	simple "percentage" flag rather than a more general (and unused)
	type flag.
	(guppi_axis_markers_populate_dates): Added.
	(guppi_axis_markers_populate_generic): Added.  A generic front-end
	for all of the different axis marker population routines.

	* src/libguppidata/guppi-data-importer-plug-in.c (assess_iter):
	Check and see if our plug-in is tagged as importing files.  If
	not, ignore it.  (This is a hack to get around the fact that we
	haven't fully integrated things like the NetHistQuote importer
	yet... we don't want it ever popping up as an option when
	selecting an import method for a file.)

	* src/libguppidata/guppi-price-series-impl.h: Added the get_bounds
	hook to GuppiPriceSeriesImpl.

	* src/libguppidata/guppi-price-series.c
	(guppi_price_series_get_range): Clamp our date inputs.
	(guppi_price_series_get_bounds): Added.  Find the min/max of a
	series quantity between two dates.

	* src/libguppidata/guppi-date-indexed.c
	(guppi_date_indexed_clamp): Added.

	* src/libguppiuseful/guppi-convenient.c (guppi_2sort_dt): Added.
	We like to sort pairs of dates, too.

	* src/libguppiuseful/guppi-convenient.h: Added g_date_clamp macro.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_horiz): Sort the
	x-args with guppi_2sort_i ().
	(guppi_paint_vert): Sort the y-args with guppi_2sort_i ().


2000-11-15  Michael Meeks  <michael@helixcode.com>

	* src/libguppibonobo/guppi.oafinfo: rename to ObjectFactory

	
2000-11-14  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/import/net-hist-quotes: Added.  A simple quick&dirty
	importer for pulling historical price data down from Yahoo!.  Not
	well integrated with the rest of Guppi yet --- some changes in the
	way GuppiDataImporters work will be required for that.

	* src/libguppidata/guppi-data.c (guppi_data_read_xml_file):
	Silently return NULL if your parsing failed.

	* src/libguppiuseful/guppi-output-xml.c
	(guppi_output_xml_open_fd): Hacked up default support for
	compressed XML output.
	(guppi_output_xml_close): Fixed to handle compressed files.
	(guppi_output_xml_print): Write out to compressed files.

	* src/libguppiuseful/guppi-convenient.h (g_date_min): Added a
	number of GDate convenience functions.

2000-11-13  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-data.c (guppi_data_new): Changed connect
	to connect_after, to preserve proper changed sematics.
	(guppi_data_newv): Ditto.

	* src/libguppidata/guppi-seq-data.c (op_set): Changed signal
	connection to "after", to properly work with other data objects.
	(op_insert): Changed signal connection to "after", for same
	reason.

2000-11-12  Jon Trowbridge  <trow@gnu.org>

	* src/libguppibonobo/guppi-bonobo-view.c
	(guppi_bonobo_view_factory): Remove obsolete "size_alloc" callback
	setting the optimal view; replace it by setting the FILL_SPACE
	semantics.  This is a reasonable default, though we might later
	want to add some way of changing this.

	* src/libguppiplot/guppi-root-group-item.c (canv_size_allocate):
	Implement the FILL_SPACE semantics, adjusting the size of our
	item's view when we resize.  Doing this will clearly cause problem
	if we ever have two items with the same view: they will fight over
	the objects size whenever eitherone is resized...
	(set_scale): When in FILL_SPACE mode, we have to also readjust our
	size every time we change our scale.

	* src/libguppiplot/guppi-root-group-item.h: Add new item to
	resize-semantics enum: ROOT_GROUP_RESIZE_FILL_SPACE.  A nicer way
	of doing things in bonobo components.

	* src/libguppiplot/guppi-element-view.c (guppi_element_view_init):
	Monitor geometry changes and convert them to view changes.  I
	can't believe I forgot to do this, and I also can't believe it
	took this long before not doing this cropped up and caused
	problems...

2000-11-11  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/file-open.c: Retooled somewhat to take advantage of
	GuppiDataImporter API improvements.

	* plug-ins/import/import-delimited/guppi-delimited-importer.c
	(guppi_delimited_importer_import): Changed to conform to new,
	cleaner API.

	* plug-ins/import/import-delimited/init.c (guppi_plug_in): Remove
	references to state_edit_widget field.

	* src/libguppidata/guppi-data-importer-plug-in.h: Moved the
	state_editor_widget field from GuppiDataImporterPlugInClass to
	GuppiDataImporterClass.

	* src/libguppidata/guppi-data-importer.c
	(guppi_data_importer_import): Cleaned up the interface, using
	iterator functions rather than returning a hacky vector-list.
	(guppi_data_importer_import_interactive): Added.  Pops up a window
	for editting the importer state before performing the actual
	import.

	* plug-ins/plot/XLplots/guppi-pie-register.c
	(guppi_piechart_factory): s/"data_scalar"/"data"/.

	* src/libguppibonobo/guppi-bonobo-canned-demo.c
	(guppi_bonobo_canned_demo): s/"data_scalar"/"data"/.

	* src/libguppitank/guppi-object-pie.c (build): Fix the
	guppi_element_state_new ("pie"...) arg to be "data", not
	"data_scalar".

	* plug-ins/plot/pie/guppi-pie-item.c (update): Properly handle pie
	charts without any labels at all.

	* src/libguppidata/guppi-seq-categorical.c
	(prepare_xml_attributes): Added.  Define the category attribute,
	and provide a custom handler to read in a data object.
	(create_xml_object): Build our GuppiSeqCategorical.
	(init_xml_object): Take the GuppiCategory defined as the
	"category" attribute value and attach it to our
	GuppiSeqCategorical.

	* src/libguppidata/guppi-seq-integer.c (begin_element): Fixed
	moronic typo.

	* src/libguppidata/guppi-category.c (content_xml_context): Added
	XML importing.

	* src/libguppidata/guppi-data.c (guppi_data_read_xml_context):
	Instead of having the context stuff the a pointer to the imported
	GuppiData in a provided GuppiData**, we pass in a callback that is
	function called with the newly-imported data.  This is more
	flexible.
	(guppi_data_read_xml_file): Changed to reflect the new
	callback-arg approach to guppi_data_read_xml_file.
	(guppi_data_identify_xml_file): The whole "magic comment" approach
	was just evil... so now I just look for certain telling fragments
	of XML tags in the text.

	* src/libguppiuseful/guppi-attributes-xml.c
	(guppi_attributes_xml_set_special_import_context): Added.  Lets
	you define a custom context for importing a value.  This allows
	you to have Attribute values other than just ints, doubles,
	etc... very useful.
	(guppi_attributes_xml_declare_pointer): Added.
	(guppi_attributes_xml_get_pointer): Added.
	(guppi_attributes_xml_set_pointer): Added.
	(guppi_attributes_xml_set_pointer_free): Added.
	(guppi_attributes_xml_set_pointer_unref): Added.
	(guppi_attributes_xml_set_pointer_destroy_fn): Added.
	(g_hash_free): Call attritem_clear_data () to dealloc stuff in the
	union, rather than having that nasty code dup here.
	(attritem_clear_data): Added support for calling the destroy_fn
	for pointer items.
	(ac_begin_element): Hacked to return our custom import context,
	when present.

	* src/libguppiuseful/guppi-context-xml.c
	(guppi_context_xml_set_user_data): Fixed assertions that check if
	more than one destruction method flag is set.
	(push_context): Sink our context pointers, fixing some ref-counting
	problems.

2000-11-10  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-price-series.c (create_xml_object): Added.
	(content_xml_context): Build up an XML parser for Price Series
	objects.

	* src/libguppidata/guppi-date-indexed.c
	(guppi_date_indexed_class_init): Forgot to set the
	prepare_xml_attributes variable in the GuppiDataClass.  Duh!

	* src/libguppidata/guppi-data-init.c (guppi_data_init): Call
	the type initializers for our various data types.


2000-11-09  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/import/import-delimited/delim-import-widget.c
	(stream_preview_extra_info_cb): Cast an arg of isalpha to a
	guchar.

	* src/libguppiplot/guppi-marker.c (loose_match): Cast some args to
	isfoo() to guchar.

	* plug-ins/import/import-delimited/guppi-delimited-importer.c:
	Cast some gchar to guchar in isspace() and friends.  Most
	platforms don't care about this, but perrenial oddball HP/UX does.
	Thanks to Morten Welinder for pointing this out to me.

	* src/libguppidata/guppi-seq.c (guppi_seq_class_init): Fix the
	signal info for changed_shift_indices.  It was only luck that this
	hadn't caused any segfaults yet.
	(op_shift): Fixed a mind-numbingly stupid typo that had been
	causing segfaults galore.

	* src/libguppidata/guppi-date-indexed.c (prepare_xml_attributes):
	Declare the size, start_date and end_date attributes.

	* src/libguppidata/guppi-seq-integer.c (content_xml_context):
	Build a content XML context for integer sequences.

	* src/libguppidata/guppi-seq-boolean.c (content_xml_context):
	Build a context for parsing the Content section of a boolean
	sequence's XML doc.

	* src/libguppidata/guppi-seq-scalar.c (content_xml_context): Build
	a context for parsing the Content section of a scalar sequence's
	XML doc.

	* src/libguppidata/guppi-seq.c (prepare_xml_attributes): Make sure
	all GuppiSeq derivatives know about the min_index and max_index
	Attibutes.
	(init_xml_object): Set the min index and offer a size hint for any
	seq objects we construct from an XML document.

	* src/libguppidata/guppi-data.c (prepare_xml_attributes): Added.
	Define the default attributes that every data object has, a label
	and an implementation name.
	(content_xml_context): Added.  We make the default content context
	the debugging context.
	(guppi_data_class_init): Set our hooks in GuppiDataClass.
	(guppi_data_write_xml): Spew out an identifying XML comment at the
	top of the XML document --- there must be a more XMLishly-correct
	way of handling this.  Put the type name (as a gtk_type_name) in
	the Data tag's attributes, and move the impl_name down to the
	Attributes section.
	(guppi_data_read_xml_context): Build and return our basic
	data-importing XML context.
	(guppi_data_read_xml_file): A convenience function that builds an
	XML context and then uses it to slurp data out of a file.
	(guppi_data_identify_xml_file): Look at a file and decide it if is
	really a Guppi XML data file.  The way I do this right now is sort
	of hacky.

	* src/libguppidata/guppi-data.h: Add four virtual function hooks
	to the GuppiDataClass structure: prepare_xml_attributes,
	create_xml_object, init_xml_object, content_xml_context.

	* src/libguppiuseful/guppi-context-xml.h: 
	* src/libguppiuseful/guppi-context-xml.c: Added.  This is
	basically a wrapper around gnome-xml's SAX routines, with a twist.
	A GuppiContextXML is a data structure that contains callbacks for
	various XML situations: begin element, end element, etc. just like
	SAX.  However, "context switches" (to misuse the term) can occur:
	things can be set up so that hitting a certain begin-element
	causes the body of that element to be processed by a different
	context.  This lets us do nice things with nested parsers &
	modularity: for example, there is a common "header" for the XML
	data type, and then each different data type has their own XML
	context for parsing the "content" section of the document.  This
	approach can be a bit clunky at times: you end up defining lots of
	callback functions everywhere, and building lots of little structs
	for carrying around user data.  And the API still probably needs
	some fine-tuning.  But beyond these things, I'm finding this
	approach to actually work pretty well.  YMMV, of course.

	* src/libguppiuseful/guppi-attributes-xml.h: 
	* src/libguppiuseful/guppi-attributes-xml.c: Added.  A symbol table-
	type construction for use in the Guppi XML file format.

	* src/libguppiplot/guppi-plot-window.c (new_view_cb): Changed to
	use guppi_warning_dialog.

	* src/libguppiuseful/guppi-useful.h: Added an 
	#include <guppi-dialogs.h>

	* src/libguppiuseful/guppi-paths.c (gnome_guile_repl_path):
	Changed to use guppi_error_dialog.

	* src/libguppiuseful/guppi-debug.c
	(_guppi_unimplemented_function_dialog): Changed to use
	guppi_warning_dialog.

	* src/libguppiuseful/guppi-dialogs.c: Added.  Provides
	guppi_ok_dialog, guppi_warning_dialog and guppi_error_dialog
	functions, which just behave like gnome_*_dialog except that they
	automatically show the dialog widgets, return void, and 
	allow for printf-style format strings and varargs.

2000-10-31  Zbigniew Chyla  <cyba@gnome.pl>

	* configure.in: Added pl to ALL_LINGUAS.

2000-10-28  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/price_series/guppi-price-series-core-impl.c:
	Added.  A simple implementation for price series, w/o much
	optimization.

	* plug-ins/data_impl/seq_boolean/guppi-seq-boolean-core-impl.c:
	Added some code to support missing values.  That stuff is still
	fairly incomplete, though.

	* src/libguppiplot/guppi-2d.c (guppi_2d_make_path): Fixed typo
	in type-cast which was causing compiler warnings.

	* src/libguppidata/guppi-price-series.h: 
	* src/libguppidata/guppi-price-series.c: Added.  A data type for
	daily open/high/low/close-type time series for financial
	instruments.

	* src/libguppidata/guppi-date-indexed.h:
	* src/libguppidata/guppi-date-indexed.c: Added.  A base class for
	date-indexed data.  This is sort of a time-series equivalent to
	GuppiSeq.
	
	* src/libguppidata/guppi-seq-categorical.c (write_xml_attributes):
	Added xml output.

	* src/libguppidata/guppi-seq-integer.c (write_xml_element): Added
	xml output.

	* src/libguppidata/guppi-category.c (write_xml_content): Added xml
	output.

	* src/libguppidata/guppi-seq-boolean.c (write_xml_element): Added
	xml output.

	* src/libguppidata/guppi-seq-scalar.c (write_xml_element): Added
	xml output.

	* src/libguppidata/guppi-seq.c (write_xml_attributes): Added
	default xml attribute handing.
	(write_xml_content): Added default xml content handling.

	* src/libguppidata/guppi-data.c (guppi_data_write_xml): Added.

	* src/libguppiuseful/guppi-output-xml.c
	Tweaked some indentation and spacing.
	(guppi_output_xml_elementf): Added.
	(guppi_output_xml_end_tag_check): Added.  Instead an end tag, with
	error checking.
	(guppi_output_xml_open_file): Added simplistic implementation.
	(guppi_output_xml_open_fd): Added a simplistic implementation.
	(guppi_output_xml_close): Added a simp... well, I think you can
	guess.

2000-10-27  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/plug-ins.c: Hacked to mark which plug-ins have actually
	been loaded.  Does not dynamically update, which is a bug.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c (update): Use
	guppi_2d_make_path and our optimization
	guppi_canvas_item_vpath_vp2c bulk coordinate-transformer.  This
	makes thing nicer and simpler.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_wide_curve): Added.
	This doesn't paint a curve --- just a bunch of connected line
	segments -- and it isn't wide, it is just a 1-pixel thick non-AA
	line.  But this is here as a placeholder until I get my
	rasterization algorithms sorted out.

	* src/libguppiplot/guppi-2d.c (guppi_2d_make_path): Added.

2000-10-22  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/*/*/Makefile.am: Change all of our plug-in dirs to form
	a directory hierarchy that mirrors our plug-in "name space" when
	installing.  (So now the plot plug-in foo gets installed in
	PREFIX/lib/guppi/VERSION/plot/foo.  Previously it was put in
	PREFIX/lib/guppi/VERSION/foo.)

	* plug-ins/plot/legend/guppi-legend-print.c: Use our new accessors.

	* plug-ins/plot/legend/guppi-legend-item.c: Use our new accessors.

	* plug-ins/plot/legend/guppi-legend-state.h: 
	* plug-ins/plot/legend/guppi-legend-state.c: Add new accessors
	for all data access to pass through; this allows us to support
	different data sources for the legend.

	* plug-ins/plot/pie/guppi-pie.defs: Fix types in binding specs.

	* plug-ins/plot/pie/guppi-pie-print.c: Use new accessors in
	GuppiPieState for data access.

	* plug-ins/plot/pie/guppi-pie-item.c: Use new accessors in
	GuppiPieState for data access.
	
	* plug-ins/plot/pie/guppi-pie-state.h: 
	* plug-ins/plot/pie/guppi-pie-state.c: Make all data access pass
	through accessor functions, so that pie can support many different
	data sources.  In doing this, the assumption that our data comes
	from a GuppiSeqScalar has been removed.
	(guppi_pie_state_slice_bounds): Added.
	(guppi_pie_state_slice_percentage): Added.
	(guppi_pie_state_need_separate_label_data): Added.

	* plug-ins/data_impl/curve/calc-pre.scm: Add autoload magic.

	* plug-ins/data_impl/curve/func-pre.scm: Add autoload magic.

	* plug-ins/data_impl/curve/func.c: Implement transformed curves.

	* plug-ins/data_impl/curve/func.plugin: Added PreloadedScheme.

	* plug-ins/data_impl/curve/calc.plugin: Added.

	* plug-ins/data_impl/curve/calc.h:
	* plug-ins/data_impl/curve/calc.c: Added.  Actually, this is just
	func.[ch] renamed, to be consistent with our naming scheme in
	seq_scalar.

	* plug-ins/data_impl/curve/calc.defs: Fix bindings info.

	* plug-ins/data_impl/curve/func.defs: Fix bindings info.

	* plug-ins/data_impl/seq_scalar/calc.defs: Define bindings.

	* plug-ins/data_impl/seq_scalar/func.c: Removed unneeded destroy
	function.

	* plug-ins/data_impl/seq_scalar/calc.plugin: Added PreloadedScheme
	declaration.

	* plug-ins/data_impl/seq_scalar/func.plugin: Added PreloadedScheme
	declaration.

	* plug-ins/data_impl/seq_scalar/func-pre.scm: Added; autoload hooks.

	* plug-ins/data_impl/seq_scalar/calc-pre.scm: Added; autoload hooks.

	* plug-ins/data_impl/seq_scalar/calc.c: Implement purely
	computed scalar sequences.

	* plug-ins/data_impl/seq_scalar/calc.h: Properly define
	GuppiSeqScalarCalcImpl.  Previously, this was just a copy of
	func.c.
	
	
2000-10-21  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/curve/guppi-curve-func-impl.c
	(guppi_curve_func_impl_class_init): Add implementation name.

	* src/libguppidata/guppi-curve.c (guppi_curve_sample): Check
	parameter bounds.
	(guppi_curve_parameter_bounds): Add assert to check for
	impl_class->bounds.
	(guppi_curve_get): Added asserts for bounds and get.
	(guppi_curve_get_bbox): Add asserts for bounds and get.  Clamp
	endpoints to bounds.
	(guppi_curve_sample_uniformly): Clamp endpoints to bounds.

	* src/libguppidata/guppi-curve-impl.h: Label optional & mandatory
	virtual functions in vtable.

	* src/libguppidata/guppi-seq-scalar.c: Added sum_abs to
	GuppiSeqScalarPrivate.
	(changed): Deal with sum_abs-tracking.
	(op_set): Update sum_abs on-the-fly.
	(op_insert): Update sum_abs on-the-fly.
	(guppi_seq_scalar_sum_abs): Added.

	* src/libguppiuseful/guppi-guile.c (guppi_guile_init): Locate and
	run guppi-guile-boot.scm script.

	* src/libguppiuseful/guppi-paths.c (guppi_find_script): Added
	development-path-hacks trickery.  Quite awful, really.

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Added call to
	guppi_dharma_init ().

	* src/libguppiuseful/guppi-dharma.c: Added.  Let no one suggest
	that Guppi isn't full of compassion for all sentient beings.

2000-10-20  Ariel Rios <ariel@arcavia.com>
	
	* configure.in: Added AC_PROG_LEX and AC_PROG_YACC.
	This enables compilations on sytems that only has
	bison / flex available.
	
2000-10-19  Jon Trowbridge  <trow@gnu.org>

	* Everywhere: With much pain and suffering, I've changed my
	bizarre code indentation practices and I'm trying to conform to
	the GNU Coding Style as much as I can.  For consistency, I've run
	"indent" on 
	

	* src/libguppiuseful/guppi-output-xml.h:
	* src/libguppiuseful/guppi-output-xml.c: Added; an object and lots
	of convenience routines for writing XML files.

2000-10-18  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/guppi-chart-selector.c
	(cb_row_select) : Use the stored first minor type
	  rather than guessing 0,0.
	(cb_minor_list_init) : Remember the minimum #'d minor type.
	(guppi_chart_selector_widget) : no need to do the colour map and
	  visual dance.  The canvas_new takes care of it.

	* src/guppi-gnumeric/corba-graph-series.c
	(impl_vector_notify_remove) : Add stub.
	(impl_vector_notify_nameChanged) : Ditto.
	(corba_implementation_classes_init) : Use them.

2000-10-15  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/barchart/guppi-barchart-state.c (config_tree):
	Build a config menu snippet for bar charts.
	(config_data_cb): Build a GuppiDataMultiselect and put it in
	place.  The signals aren't properly hooked up yet --- this is
	mostly just for testing right now.

	* plug-ins/plot/axis/guppi-axis-item.c (render): Fix bug that caused
	a segfault if the empty string was used as an axis label.

	* src/guppi/guppi.c (real_main): Call guppi_data_ui_init() at the
	right time.

	* src/libguppidataui/guppi-data-ui-init.h: 
	* src/libguppidataui/guppi-data-ui-init.c: Added an init function
	for libguppidataui.

	* src/libguppidataui/guppi-data-ui.defs: Added some binding specs
	for GuppiDataMultiselect.  Mostly for testing purposes.

	* src/libguppistat/guppi-stat-init.h: Fixed broken GUPPI_DECLS
	macros.

	* src/libguppiplot/guppi-plot-init.h: Fixed broken GUPPI_DECLS
	macros.

	* src/libguppidata/guppi-seq-data.c (guppi_seq_data_class_init):
	Oops... the correct impl_type is GUPPI_TYPE_SEQ_OBJECT_IMPL, not
	GUPPI_TYPE_SEQ_OBJECT.

	* src/libguppidata/guppi-data-init.h: Fixed broken GUPPI_DECLS
	macros.

	* src/libguppidataui/guppi-data-select.c: Removed all of the popup
	construction code, which has been moved to guppi-data-popup.c.
	(guppi_data_select_construct): Switched to use GuppiDataPopup.

	* src/libguppidataui/guppi-data-select.h: Remove the tree pointer
	from the GuppiDataSelect struct.

        * src/libguppidataui/guppi-data-multiselect.h:
	* src/libguppidataui/guppi-data-multiselect.c: Added.  A widget
	that lets you select & manipulate a list of N data items.

	* src/libguppidataui/guppi-data-popup.h:
	* src/libguppidataui/guppi-data-popup.c: Added.  This widget is a
	button that, when clicked, pops up a menu and allows a data item
	to be selected.

2000-10-14  Andrew Chatham <andrew.chatham@duke.edu>

	* build-tools/generate.py
	(FunctionDefsParser.writePython): Added a topoligical sort for
	the classes so that the Python shadow classes get printed out in
	an acceptable order.

	* build-tools/top.py: Added. A module/class to perform a
	topological sort.

	* src/guppi/guppi-app.c (python_terminal_cb): Changed from
	unimplemented to (python_terminal). Python terminal should now
	work.

	* src/guppi/python-term.c: 
	* src/guppi/python-term.h: Added.  I basically copied from
	guile-term.[ch] except that instead of calling a CORBA server I
	call PyRun_InteractiveLoop, which we already have included for
	free. As a result I took out the path searching code. Currently
	exiting the terminal is a bit of a problem, since I haven't
	figured out how to get zvt_term to pass an EOF character or deal
	with a call to sys.exit.

	* src/libguppiuseful/guppi-python.c:
	* src/libguppiuseful/guppi-python.h:
	(python_safe_apply): Added.
	(py_eval_d__i): Added
	(py_eval_d__i_d): Added
	(py_eval_d__d_d): Added.
	(py2fn_d__i): Added
	(py2fn_d__i_d): Added
	(py2fn_d__d_d): Added.  
	Note that these are not yet integrated with the code generation,
	so they're not being used (or, um, tested) yet.
	
2000-10-12  Jody Goldberg <jgoldberg@home.com>

	* plug-ins/plot/XLplots/Makefile.am (EXTRA_DIST) : dist xpm, png and
	  .plugin files.

	* src/libguppimath/guppi-equation.c : include stdio.h, suppress warning

	* src/guppi-gnumeric/Makefile.am : Make executable conditional.

	* src/libguppiplot/Makefile.am (libguppiplotinclude_HEADERS) : Add
	  missing file guppi-plot.h

2000-10-12  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/import/import-delimited/delim-import-widget.c
	(build_type_chooser): Add support for categorical & date data
	types.

	* plug-ins/import/import-delimited/guppi-delimited-importer.c
	(guppi_delimited_importer_finalize): Deallocate potential date
	array.
	Added date-related info to ColumnInfo struct.
	(guppi_delimited_importer_guess_types): Added support for
	potential_date array. Use g_date_set_parse() to check if our
	columns look like dates.  Use our distinct-item count to
	recognize potential categorical variables.
	(guppi_delimited_importer_import): Handle date & categorical
	data.

	* plug-ins/data_impl/category/guppi-category-core-impl.c: Added a
	base definition for our category class.

	* plug-ins/data_impl/seq_date/guppi-seq-date-core-impl.c
	(v_data_copy): Add a placeholder function. (Asserts if called :/)
	(v_data_size_in_bytes): Added a size estimate.
	(guppi_seq_date_core_impl_class_init): Define these two new
	functions in our vtable.

	* src/libguppidata/guppi-data.defs: Define binding prototypes for
	GuppiSeqCategorical and GuppiCategory.

	* src/libguppidata/guppi-seq-data.c (guppi_seq_data_class_init):
	Properly set the impl_type for the class.

	* src/libguppidata/guppi-seq-categorical.h:
	* src/libguppidata/guppi-seq-categorical.c: Added.  Defines
	sequences of "categorical objects", with an on-the-fly maintained
	frequency count of each.  Built on top of GuppiSeqInteger and
	with GuppiCategory.

	* src/libguppidata/guppi-category.h: 
	* src/libguppidata/guppi-category.c: A new data type, basically
	defines a mapping between strings and integer codes.  Used by
	categorical sequences, and potentially in other places as well.

2000-10-08  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/pie/guppi-pie-tool.c
	(guppi_pie_tool_new_fixed_spin): Added a tool for spinning the pie
	by a fixed amount on each "click".
	(guppi_pie_toolkit_default): Bind a fixed spin tool to mouse
	buttons 4 & 5, so the wheel on a wheel mouse can be used to spin
	the pie.  Also bind them to the left and right arrow keys, so that
	we can spin the pie from the keyboard.

	* plug-ins/plot/pie/guppi-pie-state.c (config_tree): Added two
	config dialogs --- one for setting data values/labels, one for
	appearance parameters.  The latter dialog is very primitive at
	this point.

	* plug-ins/plot/frame/guppi-frame-state.c (config_tree): Add
	placeholder config dialogs.

	* plug-ins/plot/axis/guppi-axis-view.c (config_tree): Add
	placeholder config dialogs.

	* plug-ins/plot/axis/guppi-axis-state.c (config_tree): Add
	placeholder config dialogs.

	* src/libguppiuseful/guppi-config-item.c (guppi_config_item_new):
	Added a fallback widget constructor if NULL is passed in.  Check
	that the name & short name args are not NULL.
	(guppi_config_item_add_before): Properly handle adding
	non-singletons.
	(guppi_config_item_add_after): Handle non-singletons.
	(guppi_config_item_add_below): Handle non-singletons.  I really
	wasn't thinking ahead when I wrote this code originally. :/ BTW, I
	think (well actually I know) that this code's ref counting is a
	bit hosed.

2000-10-07  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object-scatter.c (build): Fix some return
	values.

	* src/libguppiuseful/guppi-paths.c (guppi_glade_path): Properly
	scan $(datadir)/guppi/glade for .glade files.


2000-10-06  Yukihiro Nakai  <nakai@gnome.gr.jp>

	* guppi.desktop: Add Japanese translation.


2000-10-05  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object-scatter.c (build): Fixed
	some returns w/ no value.

	* plug-ins/data_impl/seq_scalar/core.c
	(guppi_seq_scalar_core_impl_finalize): What good are all of our
	convenience functions/macros if we don't actually use them?

	* plug-ins/data_impl/seq_date/guppi-seq-date-core-impl.c: Added
	basic functionality.  Date sequences now actually sort of
	work... but are missing lots of needed bells & whistles.

	* src/libguppitank/guppi-tank.h: Removed stray END_GUPPI_DECLS
	call.  This is the problem with mass automated changes to source
	files...

	* src/libguppitank/guppi-object-pie.c: GroupView-ified.

	* src/libguppitank/guppi-object-scatter.c: GroupView-ified.

	* src/libguppitank/guppi-object-barchart.c: GroupView-ified.

	* src/libguppitank/guppi-tank-init.c (guppi_tank_shutdown): Added.
	(guppi_tank_exit): Added as a convenience.

	* src/libguppitank/guppi-object-title.c: Carried the new idea of
	"container items" to guppi-tank.  This is a "framing" title object
	that can handle all titles for all GuppiObjects, rather than
	requiring code dup for titles in every single case.

	* src/libguppitank/guppi-object.c: Modified to use the "new method"
	of building plots, rather than the old GuppiPlot approach.  Changed
	the "hidden" GuppiPlot into a more general opaque state struct.
	General fiddling.

	* src/libguppiplot/Makefile.am (libguppiplot_la_SOURCES):
	guppi-plot.c and guppi-plot-canvas.c are finally out of the build.
	Hurray!

	* src/libguppiplot/guppi-root-group-item.c: Double-click handling
	broken when we moved from the GuppiPlotCanvas-model to the
	GuppiRootGroupItem-model.  I've fixed it, but had to change a few
	things to work around slight differences in how the canvas
	dispatches signals compared to a GtkWidget.  (This confused me for
	a while, since the cut&paste of code from the GuppiPlotCanvas for
	event handling *almost* worked perfectly, but not quite...)  Also,
	built variable resize-handling semantics directly into the object.
	This is much nicer than requiring apps to connect to size_allocate
	themselves.

	* src/libguppiplot/guppi-plot.defs: Clean out a bunch of old
	GuppiPlot declarations.

	* src/libguppiplot/guppi-plot-toolhelp.c
	(guppi_plot_toolhelp_construct): #if 0/#endif out some unused
	variables.

	* src/libguppiplot/guppi-canvas-group.c (double_click): Fix order
	of arguments in call to guppi_canvas_item_double_click() call.
	(guppi_canvas_group_find_by_view): Made the find recursively
	descend into sub-groups.

	* src/libguppidata/guppi-seq-impl.c (guppi_seq_impl_set_missing):
	Made more ANSI-ily correct.
	(guppi_seq_impl_insert_missing): ANSI tweak.
	(guppi_seq_impl_set_many_missing): ANSI tweak, plus replaced
	broken usage of guppi_seq_boolean_set_many() by a call to
	guppi_seq_boolean_set() inside of a loop.

	* src/libguppidata/guppi-seq-date-impl.h: Removed a number of consts,
	paralleling the changes to GuppiSeqDate.  Added hooks for
	custom min, max, and lookup functions.

	* src/libguppidata/guppi-seq-date.c: Deconstified most of the API.
	(guppi_seq_date_min): Added.
	(guppi_seq_date_max): Added.
	(guppi_seq_date_lookup): Added.

	* src/libguppiuseful/guppi-fn-wrapper.h: Removed a trailing , in
	an enum definition.  Again, -pedantic turns up the damndest
	things.

	* src/libguppiuseful/guppi-exit.c (guppi_shutdown): Added.  This
	allows a shutdown to be requested w/o any exit functions being
	called afterwards.  This change is for guppi-tank, which is getting
	its own shutdown command, but which clearly should leave the
	actual exitting to the controlling app.

	* src/libguppiuseful/guppi-enums.h: Moved our enum typedefs after
	the definition of the enum.  They had previously been before (like
	our convention for struct typedefs), but it turns out that forward
	declarations of enums is illegal under ANSI C.  (The things you can
	learn from -pedantic...)

2000-09-28  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Improve the error messages for when searching for the
	  gnumeric idl file.  Use gnome-config --moddatadir

	* src/libguppibonobo/guppi-bonobo.c
	(guppi_bonobo_canned_demo_init) : Change the name of guppi_bonobo_init
	  to guppi_bonobo_canned_demo_init.
	* src/guppi/guppi.c (real_main) : Ditto.

2000-09-25  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/corba-graph-manager.c (graph_manager_destroy) :
	  Add a handler to help figure out when this thing is getting
	  destroyed.

	* plug-ins/plot/XLplots/guppi-pie-register.c
	(guppi_piechart_factory) : Use xlplot_stock_legend.

	* plug-ins/plot/XLplots/guppi-barchart-register.c
	(guppi_barchart_factory) : Improve the look a bit.

	* plug-ins/plot/XLplots/guppi-XLplots-common.c
	(xlplots_stock_legend) : New routine.

	* plug-ins/plot/barchart/guppi-barchart-state.c
	(guppi_barchart_state_set_arg) : Implement arguments for
	  cluster_margin and bar_margin.

	* src/libguppiplot/guppi-root-group-item.c (guppi_root_group_item_init)
	  Init background to NULL;
	(set_canvas_size) : Make a reference to the background so that it is
	  not released prematurely.

2000-09-24  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/XLplots: Converted all of the plot registration
	functions to use the new approach.  BTW, the problem with the
	scatter item was that it needed a call to
	guppi_element_view_set_preferred_view() to have it choose the
	optimal coordinate system --- scatter doesn't do this by default.
	The view defaults to [0,1]x[0,1], so no points were visible and
	thus the scatter plot appeared blank.  QED.  (I've made that same
	mistake about 10 times already in Guppi's short lifetime...)

	* src/guppi-gnumeric/guppi-chart-selector.c: A crude hack job
	to get this widget to use the overhauled plotting stuff.  It ain't
	pretty, but it does seem to work...

	* src/guppi-gnumeric/test.c (real_main): Call
	force_development_path_hacks(), so that we search for plug-ins and
	such under guppi3 --- I hate doing "make install".  There should
	probably be a support group for that as well.

	* src/libguppiplot/guppi-root-group-item.c (set_canvas_size): Make
	our background object be in the same canvas group as our root
	group item, rather than in root.  Doing it this was just makes
	more sense.

	* src/libguppibonobo: Reworked to get rid of all of that awful
	GuppiPlot/GuppiPlotCanvas cruft.  All untested, of course, since
	I'm still basically afraid of Bonobo.  There should be a support
	group for people like me.

	* src/libguppiplot/guppi-chart-type.c: Ported over to the new way
	of doing things.  The changes can be summarized quite simply as:
	s/GuppiPlot/GuppiRootGroupView/g

	* src/libguppiplot/guppi-root-group-item.c
	(post_realization_init): Take all of the stuff that we had been
	doing in our default handler for realize, and do it in a
	post_realization_init function.
	(guppi_root_group_item_class_init): Defined our
	post_realization_init function.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_make_canvas_item): After creating our item,
	set the ready flag and then (if necessary) call the
	post_creation_init function.

	* src/libguppiplot/guppi-canvas-item.h: Added
	post_creation_init and post_realize_init virtual functions
	to GuppiCanvasItemClass.

	* src/libguppiplot/guppi-canvas-item.c (guppi_canvas_item_ready):
	Added.  Check the ready flag.
	(guppi_canvas_item_set_ready): Added.  Set the "item ready" flag.
	(realize): Upon realization, try to call the post_realization_init
	function.  If the item doesn't have the ready flag set (i.e. if it
	hasn't been fully constructed yet), set up and idle function and
	defer calling post_realization_init until later.

2000-09-23  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/scatter-demo.scm: Hacked to use the new xybox type.  I
	like it when things get simpler.

	* plug-ins/plot/xybox: A simple example of a container plug-in.
	You drop in xy-ish items (like scatter plots, slinregs, etc.)
	and it automatically sets the layout to fill the available space
	(via a layout_horizontal_fill()/layout_vertical_fill() combo)
	and connects up the x/y-views and markers.

	Containers are actually much easier to build than regular plot
	plug-ins, because you can just rely on the default handlers for
	printing and building canvas items... so there are many fewer
	details to worry about.

	* src/libguppiplot/guppi-group-view.c
	(guppi_group_view_foreach_pending): Added.  Iterate across the
	view items in the "pending" group view, i.e. the subitems that
	will become active when changes are committed.
	(guppi_group_view_commit_all_changes): Added.  Commit changes
	in this view, and in all sub-group views.

	* src/libguppiplot/guppi-canvas-item.c (find_tool): Allow NULL to
	be passed in for the op_tool or op_item args.
	(guppi_canvas_item_locate_button_tool): Allow NULL op_item or
	op_tool args.
	(guppi_canvas_item_locate_key_tool): Allow NULL op_item or op_tool
	args.

	* src/libguppiplot/guppi-root-group-item.c (key_press_event): Grab
	keyboard when activating a keyboard-bound tool.
	(key_release_cb): Add keyboard ungrab on key release.

	* src/libguppiplot/guppi-plot-tool.c (guppi_plot_tool_first):
	Added pt coordinate tracking.
	(guppi_plot_tool_middle): Added pt coordinate tracking.
	(guppi_plot_tool_end): Added pt coordinate tracking.

	* src/libguppiplot/guppi-plot-tool.h: For convenience, added pt
	coordinates to the GuppiPlotTool struct.

	* src/libguppiplot/guppi-root-group-view.c
	(guppi_root_group_view_show_in_window): Changed our
	commit_changes() function call to commit_all_changes().  It just
	makes more sense.

	* src/libguppiplot/guppi-group-view.c
	(guppi_group_view_commit_all_changes): Added.

	* src/libguppiplot/guppi-root-group-tools.c
	(guppi_root_group_tool_new_help): Added.  Now pop-up help can be
	just another tool, rather than something that has to be hard-wired
	into our event-handing framework.  I like that.
	(guppi_root_group_toolkit_configure): Bind the pop-up help tool
	to the question-mark key.

	* src/libguppiplot/guppi-plot-toolhelp.c
	(guppi_plot_toolhelp_construct): Hack to work properly with the
	new post-GuppiPlot way of doing things.  For now we our pop-up
	help only covers button-bindings, not key-bindings or double-click
	bindings.

	* src/libguppiplot/guppi-root-group-tools.c
	(select_and_configure_cb): Remove unused variable to silence
	warning.

	* src/guppi/group-scatter.scm:
	* src/guppi/group-scatter2.scm:
	* src/guppi/scatter-demo.scm:
	s/guppi-group-view-push/guppi-group-view-commit-changes/

	* src/libguppiplot/guppi-root-group-view.c
	(guppi_root_group_view_show_in_window):
	s/guppi_group_view_push/guppi_group_view_commit_changes/

	* src/libguppiplot/guppi-group-view.c
	(guppi_group_view_commit_changes): Renamed guppi_group_view_push,
	on Jody's suggestion.

2000-09-22  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi-app.c (hacked_scatter_grid_cb): Added function
	to produce the 2x2 scatter grid demo.  (Callback to data window
	menu item.)
	(guppi_app_setup_menus): Added menu item for 2x2 scatter grid demo.

2000-09-20  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiplot/guppi-chart-type.h : Adjust the signature.

	* src/guppi-gnumeric/guppi-chart-selector.c
	(guppi_chart_selector_init) : Store labels seperately.

	* src/guppi-gnumeric/corba-graph-manager.c : Handle idl renaming.
	* src/guppi-gnumeric/corba-graph-series.c : Ditto.

	* plug-ins/plot/XLplots/guppi-pie-register.c (guppi_piechart_factory)
	  Improve handling of labels.

	* plug-ins/data_impl/seq_scalar/calc.c (guppi_seq_scalar_calc_impl_set_arg) :
	  silence warning.

2000-09-17  Jon Trowbridge  <trow@gnu.org>

	* These are the worst ChangeLog entries in history.  This stuff
	reflects ten days of deep, low-level hacking.  Breakage will
	abound.

        * plug-ins/plot: Fixed config stuff.  Great renaming.
	
	* plug-ins/plot/root-group: Removed root-group plug-in.  See below.

	* src/libguppiplot/guppi-plot-window.c: Totally overhauled
	to use root-groups.

	* src/libguppiplot/guppi-plot-toolkit.c
	(guppi_plot_toolkit_set_button_tool): Track activation button in
	tool.  Useful when a tool creates a pop-up menu.
	(guppi_plot_toolkit_signature): Added.

	* src/libguppiplot/guppi-plot-tool.c (guppi_plot_tool_signature):
	Added.
	(guppi_plot_tool_supports_item): Added check of supports cb
	function.

	* src/libguppiplot/guppi-group-view.c (guppi_group_view_add): Added
	code for tracking changed_structure signals in childer.
	(guppi_group_view_remove): Disconnect our changed_structure 
	monitor on removal.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_class_init): Added "changed_structure" signal.
	(guppi_element_view_changed_structure_delayed): Added.
	(guppi_element_view_changed_structure): Added.
	(assemble_config_tree): Added a virtual function to control how
	view and state config info are combined for the config tree.
	(guppi_element_view_config_tree): Added.
	Removed old properties tree stuff.
	(guppi_element_view_finalize): Remove any pending structure changes.

	* src/libguppiplot/guppi-element-state.c: Removed properties tree
	related stuff.
	(guppi_element_state_label): Made default label nicer.

	* src/libguppiplot/guppi-basic-tools.c (uses_vp_cb): Added.  Check
	if vp coordinates are used.
	Various great-renaming related changes.

        * src/libguppiplot: Moved the GuppiRootGroup code here.  Having
	that code in a plug-in was just silly, and it was very beneficial
	to be able to access the various guppi_root_group functions
	directly.

	* The great renaming: s/GuppiElementCanvasItem/GuppiCanvasItem/g

	* src/libguppidata/guppi-seq-integer.c: DataOp-ificiation
	for correct signal semantics.

	* src/libguppiuseful/guppi-properties.h:
	* src/libguppiuseful/guppi-properties.c: Obsolete; removed.

	* src/libguppiuseful/guppi-metrics.h: Added GUPPI_PX to
	guppi_metric_t enum.

	* src/libguppiuseful/guppi-metrics.c (guppi_to_pt): Added support
	for GUPPI_PX.
	(guppi_from_pt): Added support for GUPPI_PX.
	(guppi_metric_name): Added.

	* src/libguppiuseful/guppi-metric-entry.c: Added.  A widget
	for entering metric quantities.

	* src/libguppiuseful/guppi-defaults.c (guppi_default_units): Added
	default units.  For now, it is hard-coded as inches.

	* src/libguppiuseful/guppi-configure.h:
	* src/libguppiuseful/guppi-configure.c: Added.  Improved replacement
	for code in guppi-properties.c (i.e. the GuppiProperties widget).

	* src/libguppiuseful/guppi-config-item.h: 
	* src/libguppiuseful/guppi-config-item.c: Added.  Nicer replacement
	for the non-gtkobject struct in guppi-properties.h.

	* src/libguppiuseful/guppi-multiview.h:
	* src/libguppiuseful/guppi-multiview.c: Added.  Derived from
	Jonathan Blanford's gtk-multiview.  Used instead of a notebook in
	the new GuppiConfigure.

2000-09-17  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/test.c (real_main) : Create series names.

	* src/guppi-gnumeric/guppi-chart-selector.c
	(guppi_chart_selector_get_plot) : Use new factory signature to pass
	  data and series names.
        (guppi_chart_selector_init) : Init the series name.

	* src/guppi-gnumeric/corba-graph-series.c
	(impl_vector_string_notify_changed) : Implement.

	* src/guppi-gnumeric/corba-graph-manager.c
	(impl_addVectorScalar) : Store the series name.
	(impl_addVectorString) : Fill in.

	* plug-ins/plot/XLplots/guppi-scatter-register.c
	(guppi_scatter_factory) : Change signature.

	* plug-ins/plot/XLplots/guppi-pie-register.c
	(guppi_piechart_factory) : Support legends better, convert to new
	  signature.

	* plug-ins/plot/XLplots/guppi-linegraph-register.c
	(guppi_linegraph_config) : Change to the new signature.

	* plug-ins/plot/XLplots/guppi-boxplot-register.c
	(guppi_boxplot_factory) : Change to the new signature.

	* plug-ins/plot/XLplots/guppi-barchart-register.c
	(guppi_barchart_factory) : Use a real sequence of styles.  Add a legend.

	* plug-ins/plot/XLplots/guppi-XLplots-common.c
	(xlplots_stock_styles) New function.

	* src/libguppidata/guppi-seq-string.c (guppi_seq_string_set_nc) :
	  guppi_seq_changed_set ignores the index passed.  The handlers
	  use the index in the op, which we forgot to set.
	(guppi_seq_string_set) : Ditto.

2000-09-15  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/test.c (real_main) : Add some sample data.

	* src/guppi-gnumeric/corba-graph-series.c
	(impl_vector_scalar_notify_changed) : suppress warning.

	* src/guppi-gnumeric/guppi-chart-selector.c
	(guppi_chart_selector_init) : suppress warning.

2000-09-15  Jody Goldberg <jgoldberg@home.com>

	* plug-ins/data_impl/seq_scalar/core.c
	(v_seq_scalar_set_many) : New function.

	* src/libguppidata/guppi-seq-impl.c
	(guppi_seq_impl_set_many_missing) : new function.

	* src/libguppidata/guppi-seq-scalar.c
	(guppi_seq_scalar_insert_many) : Init N.
	(guppi_seq_scalar_set_many) : New function.
	(op_insert_set_many) : Ditto.

	* src/libguppidata/guppi-seq-scalar-impl.h : Add set_many.

	* src/libguppiplot/guppi-plot-canvas.c : Handle a NULL plot.

	* src/libguppiplot/guppi-plot.defs : adjust signature for style_stock.

	* src/libguppiplot/guppi-style.c (guppi_style_stock) : Add a selector for
	  which stock styles to use.

2000-09-15  Jody Goldberg <jgoldberg@home.com>

	* src/Makefile.am : Make the build of guppi-gnumeric conditional.
	* src/guppi-gnumeric/Makefile.am : Add inclusion of libguppi-bonobo.
	  Build the gnumeric-graph idl files locally.
	  Add the implementation files for the CORBA objects.

	* src/guppi-gnumeric/guppi-chart-selector.c : Update to enable sharing
	  of the resultant plot.  Make use of the new pluginless startup.
	* src/guppi-gnumeric/test.c : update.

	* src/libguppibonobo/guppi-bonobo-print.c : Use guppi_bonobo_embeddable_get_plot.
	* src/libguppibonobo/guppi-bonobo-view.c : Ditto.
	(guppi_bonobo_factory) : move the demo ctor here.

	* src/libguppibonobo/guppi-embeddable.c :
	(guppi_bonobo_embeddable_get_plot) : new function.
	(guppi_bonobo_embeddable_set_plotter) : new function.

2000-09-07  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/root-group/guppi-root-group-item.c
	(button_press_event): Properly dispatch double-clicks.

	* plug-ins/plot/pie/guppi-pie-item.c (double_click): Switch
	position args to be in dvi-coordinates.

	* plug-ins/plot/legend/guppi-legend-item.c (double_click): Switch
	position args to be in dvi-coordinates.

	* plug-ins/plot/barchart/guppi-barchart-item.c (double_click): Switch
	position arg to be in dvi-coordinates.

	* plug-ins/plot/root-group/guppi-root-group-state.h: Removed
	some obsolete function prototypes.

	* src/libguppiplot/guppi-style.c (guppi_style_changed_delayed):
	Increased priority of idle function.

	* src/libguppiplot/guppi-seq-style.c (guppi_seq_style_get_type):
	Fixed type name.

	* src/libguppiplot/guppi-layout.c (guppi_layout_calc_delayed):
	Layout idle function priority increased.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_changed_delayed): Idle function priority
	raised.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_changed_delayed): Changed idle function now
	has high priority.  (Higher than canvas redraw, in particular.)

	* src/libguppidata: The way I typedef GuppiDataImplClass and the
	classes of the GuppiDataImpl derivates has been changed to
	facilitate discussing thse classes in gtk-doc.

2000-09-05  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/root-group/guppi-root-group-item.c (realize): Set
	our scale properly (using the value stored in GuppiRootGroupView)
	when realized.

	* src/libguppiplot/guppi-group-view.c (guppi_group_view_add):
	Added call to add_hook.
	(guppi_group_view_push): Delay the view change signal.

2000-09-04  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/root-group/guppi-root-group-item.c: A GuppiCanvasGroup
	that implements all of the event magic that used to be handled by
	GuppiPlotCanvas.  It dispatches button presses, steals key events
	from the parent widget, attaches drag&drop signals to the canvas
	and handles highlighting, data dispatch, etc.  It also sizes the
	canvas scroll region to properly map device-indep coordinates to
	pixel coordinates with the right scaling.
	While you can now drop any guppi canvas item into any gnome canvas,
	you aren't going to get all of the proper higher-order behavior
	unless the root group of your construction is a root-group.

	* plug-ins/plot/root-group/guppi-root-group-view.c: A
	GuppiGroupView derivative that allows the size (in
	device-indep. units) and scale to be set.

	* plug-ins/plot/root-group/guppi-root-group-state.c: Mostly-empty
	state object for the root group.

	* src/libguppiplot/guppi-canvas-group.c: A Guppified
	GnomeCanvasItem.  Handles many of the placement issues that used
	to be addressed by GuppiPlotCanvas.

	* src/libguppiplot/guppi-group-view.h: This is basically
	now the successor to GuppiPlot.  It can be used as a simple
	container w/ layout by itself, and can itself be layed-out
	since it is a GuppiElementView-derivative.  It can also be
	a base class for containers with more complex behavior.

	* src/libguppiplot/guppi-group-state.c: Placeholder for group
	state.  Empty right now, except for the correct make-view
	functionality.

	* src/libguppiplot/guppi-element-canvas-item.c
	Guppi canvas items are now derived from GnomeCanvasGroup.
	(guppi_element_canvas_item_finalize): Disconnect position handler.
	(update): Save our bounding box before chaining the call to update,
	because the f*cking GnomeCanvasGroup update function clobbers
	the bounding box.  (It assumes you aren't going to derive from
	GnomeCanvasGroup and do anything interesting... I spent many
	hours trying to track that one down.)
	(guppi_element_canvas_item_pt2c_d): Properly invert the y-coordinate.
	(guppi_element_canvas_item_foreach): Added.
	(guppi_element_canvas_item_foreach_at): Added.
	(guppi_element_canvas_item_first_matching_at): Added.
	(guppi_element_canvas_item_data_drop_candidate): Added.
	(guppi_element_canvas_item_data_drop): Added.
	(guppi_element_canvas_item_locate_button_tool): Added.
	(guppi_element_canvas_item_locate_key_tool): Added.
	(guppi_element_canvas_item_double_click): Added.
	(guppi_element_canvas_item_set_local_toolkit): Added.
	(guppi_element_canvas_item_enable_local_toolkit): Added.
	(guppi_element_canvas_item_enable_class_toolkit): Added.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_print): Added.  (Moved here from GuppiPlot.)
	(guppi_element_view_print_to_bbox): Added, from GuppiPlot.
	(guppi_element_view_print_ps_to_file): Added, from GuppiPlot.
	(priv): Added paranoid cast to priv() macro.
	(print): Added.  Printing is now virtualized, so that we can
	properly deal with groups.
	(guppi_element_view_class_init): Connected up our default print.

	* src/libguppiplot/guppi-plot-tool.c (guppi_plot_tool_first):
	Pointer grab removed.  The caller is now responsible for this.
	(guppi_plot_tool_end): Pointer grab removed.

	* src/libguppiplot/guppi-layout.c: Added paranoid cast in priv()
	macro.
	(guppi_layout_remove): Disconnect removed geometry from layout.
	(guppi_layout_replace): Explicitly disconnect old geometry and
	reconnect new geometry from the layout.
	(guppi_layout_set_bounds_from_geometry): Added.

	* src/libguppiplot/guppi-geometry.c: Added paranoid cast in priv()
	macro.
	(guppi_geometry_finalize): Disconnect abusive-layout-hack signals.

	* src/libguppiuseful/guppi-debug.c (_guppi_track_entry): Changed
	indenttation to 2 spaces per level.
	(_guppi_track_exit): Ditto.

2000-09-01  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/import/import-delimited/guppi-delimited-importer.c
	(guppi_delimited_importer_guess_types): Fixed memory leak.

	* src/libguppiplot/guppi-element-canvas-item.c (render): Properly
	check for empty render regions.

	* src/libguppiuseful/guppi-stream.c (guppi_stream_finalize): Fixed
	memory leak caused by off-by-one error.
	(guppi_stream_changed): The last line will now refresh properly
	(marked & sani version) on a change.

	* src/libguppiuseful/guppi-version.c (guppi_developers): Added
	Martin Quinson.

	* src/libguppiuseful/guppi-string.c: In true_forms and
	false_forms, the empty string shouldn't be true or false.

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Register our plug-in clean-up
	function to run on exit.

	* src/libguppiuseful/guppi-plug-in-spec.c
	(guppi_plug_in_spec_shutdown): Added function that cleans up our
	plug-in table.

	* src/libguppiuseful/guppi-convenient.c (g_free2): Added.
	(g_free_hash_key): Added.
	(g_free_hash_val): Added.
	(g_free_hash_keyval): Added.
	(guppi_unref2): Added.
	(guppi_unref_hash_key): Added.
	(guppi_unref_hash_val): Added.
	(guppi_unref_hash_keyval): Added.
	These are all convenience functions for deallocating objects
	stored in lists and hash tables.

2000-08-29  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/demo.c: Added a small demo to exercise
	the data import code, for purify-ication purposes.

	* src/libguppiuseful/guppi-stream.c (guppi_stream_finalize):
	Correctly deallocate GuppiFile.

	* src/libguppiplot/guppi-plot.c (guppi_plot_finalize): Cancel
	pending changes.

	* src/libguppiplot/guppi-plot-canvas.c
	(guppi_plot_canvas_finalize): Make finalization more paranoid.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_finalize): Cancel any pending changes.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_finalize): Cancel any pending changes.

	* src/libguppiplot/guppi-style.c (guppi_style_finalize):
	Deallocate label.  Cancel any pending changes.

	* src/libguppiuseful/guppi-file.c (guppi_file_destroy): Move
	chained call to end.  Duh.

	* src/guppi/guppi.c (main): Close popen() with a pclose().

	* src/libguppiuseful/guppi-python.c (guppi_python_eval_file):
	Fix file descriptor leak.

	* src/libguppidataui/guppi-data-select.c
	(guppi_data_select_set_empty_label): If we change our "empty"
	label and we have NULL currently selected, update the label
	accordingly.
	(popup): Put a "none" selection first in the popup menu.  I'd
	forgotten this previously.

2000-08-28  Andrew Chatham   <andrew.chatham@duke.edu>

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Negated the guppi_python_is_active
	test.

2000-08-28  Morten Welinder  <terra@diku.dk>

	* src/libguppiuseful/guppi-plug-in-spec.c
 	(guppi_plug_in_spec_find): Close directory when we are done with
 	it.  What a thought.
	(parse_spec_file): Close files when done.

2000-08-28  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/boxplot/guppi-boxplot-item.c (update): Cleaned up
	some of the boxplot path code so that various chunks of the path
	are omitted if they are totally off the screen.  This doesn't get
	rid of the colinearity spew, but it does seem to get rid of those
	annoying horizontal streak artifacts that libart was producing
	when trying to render an off-screen boxplot.  If I was a true
	hacker, I guess I would have fixed libart rather than just working
	around its bugs, but I'm selfishly committed to my own project...

	* src/guppi/guppi.c (main): Added descriptive label to CORBA
	shutdown function.

	* src/guppi/file-open.c (file_open_ask_about_import_type): Tweaked
	to look for information in the GuppiPlugInSpec rather than the
	GuppiPlugIn.

	* src/guppi/about.c (credits): Free software development is a team
	effort, and every member of the team is important.

	* src/libguppiplot/guppi-element-canvas-item.c (render): Debug
	spew.
	(update): Debug spew.

	* src/libguppiplot/guppi-plot-canvas.c (position_item): Added some
	debug spew.
	(guppi_plot_canvas_set_state): Debug spew.

	* src/libguppiplot/guppi-plot.c (guppi_plot_push): Added some
	debug spew.
	(guppi_plot_layout_remove): Added.
	(guppi_plot_layout_replace): Added.

	* src/libguppiplot/guppi-layout.c (term_free): Simplified.
	(guppi_layout_finalize): Remove any pending layout calcs upon
	finalization.
	(register_geom): Change usage of guppi_geometry_set_registered()
	to conform to new signature.
	(guppi_layout_remove): Added.  Removes an object, as well as all
	layout rules that refer to that it.
	(guppi_layout_replace): Added.  Replaces one object by another.
	This replacement also occurs in all layout rules that mention
	the original objects.

	* src/libguppiplot/guppi-geometry.c
	(guppi_geometry_set_registered): Made this function take an bool
	argument, which it probably should have done from the beginning.

	* src/libguppidataui/guppi-data-select.c: Removed a bunch of debug
	spew that I'd put in for acuster --- the bug wasn't in here after
	all.

	* src/libguppidata/guppi-data-importer-plug-in.h: Changed the
	GuppiDataImporterAssessment struct to also carry around a pointer
	to the plug-in's GuppiPlugInSpec.  This allows us to access info
	like the plug-in's "human-readable" name and other info that is
	no longer stored in the GuppiPlugIn.

	* src/libguppidata/guppi-seq-scalar.c: Made GuppiSeqScalar opaque;
	Private info is now stored in the hidden struct
	GuppiSeqScalarPrivate.

	* src/libguppidata/guppi-data.c (process_pending_op): Memory leak
	fixed by adding g_list_free_1().

	* plug-ins: Snipped out all of the code in the various init()
	functions of all of the plug-ins that manually set the
	informational fields (author, copyright, etc.).  This stuff is all
	in the .plugin files now.

	* src/libguppiuseful/guppi-plug-in.h: Removed all of the informational
	data fields from the GuppiPlugIn struct --- they are now stored in
	GuppiPlugInSpec instead.  Incremented the plug-in magic number.

	* src/libguppiuseful/guppi-useful.c
	(guppi_useful_init_without_guile): Added guppi_python_is_active()
	check before initializing python stuff.

	* src/libguppiuseful/guppi-exit.c
	(guppi_exit_connect_approval_func): Added descriptive label.
	(guppi_exit_connect_shutdown_func): Added descriptive label.
	(approve_shutdown): Added some debug spew.
	(guppi_exit): Added explicit exit() call.  In some cases, guile
	seemed to be interfering with normal application termination.
	(guppi_abort): Added explicit exit() call.

	* src/libguppiuseful/guppi-debug.c: Added some new functions &
	macros for doing debug spew.  This is really just tinkering, and
	thus not worth discussing in detail. :-)

2000-08-26  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/boxplot/guppi-boxplot-item.c: Added more
	very-verbose debug spew.  This is all meant to try to solve
	acuster's mysterious scatterplot lock-up problem.

	* src/libguppidataui/guppi-data-select.c: Added a bunch of spew
	at the very-verbose level.

	* src/guppi/guppi.c (main): Fixed handling of debug-level
	command line args.

2000-08-26  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot-window.c: A bunch of changes to
	make up for the fact that GuppiPlot and GuppiPlotCanvas are
	now opaque objects.  Pretty boring, all in all.

	* src/libguppiplot/guppi-plot-canvas.c: I've been on an
	opaqueification roll these last few days; all of the
	GuppiPlotCanvas's state is now also in the hidden
	GuppiPlotCanvasPrivate struct.  All of the changes in this file
	(and there are many, many changes) are changes to either support
	this privitization or the privitization of GuppiPlot.  Some of the
	exceptions worth noting are:
	(guppi_plot_canvas_set_state): Here, we check that the GuppiPlot
	object we are setting as our state has ever been pushed.  If not,
	we push it ourselves.  I don't *think* this is a bad thing to
	force at this point.  It just means that anyone who isn't
	dynamically changing their GuppiPlot's never needs to worry about
	ever doing a push, and that you don't need to worry about
	forgetting that initial push.  Now passing in an uninitialized
	GuppiPlot here should also be OK; pushing an "empty" GuppiPlot is
	a valid operation.
	(Actually there might be a glitch or two associated with that, but
	nothing a few extra NULL pointer checks can't fix.)  The only
	problem would be if someone insists on setting the canvas's state
	to some sort of weird half-constructed GuppiPlot, in which case
	some ugly crap might end up on the screen.  I don't know if this
	is a case that is worth worrying about.
	(populate_canvas): This function has also been added; it tries to
	map the GuppiElementViews in a GuppiPlot to
	GuppiElementCanvasItems in an intelligent way, reusing existing
	canvas items if items associated to those views already exist.
	(guppi_plot_canvas_foreach_item): Since the list of canvas items
	is no longer exposed, iteration over all the items now has to 
	be done with this foreach function.

	* src/libguppiplot/guppi-plot.c: Massive change associated with
	the opaque-ification of GuppiPlot --- all state has been moved to
	GuppiPlotPrivate.  Most of those changes are more typing than
	programming, but one key, fundamental change is mixed up in there
	as well.  Namely,
	(guppi_plot_push): has been added.  This function attempts to
	address a big problem with manipulating a GuppiPlot's state: most
	of the time a single change will leave a GuppiPlot in a
	bad/incomplete state, and most changes consist of N steps.
	(ie calls to multiple layout functions to fully specify the
	geometry of added objects) This *is* model/view, after all...  If
	GuppiPlot/GuppiPlotCanvas are to be meaningfully thought as a
	model/view pair, changes to GuppiPlot should transparently be
	reflected in GuppiPlotCanvas w/o the coder having to operate on
	the GuppiPlotCanvas in any way.  So clearly we can't have
	GuppiPlot spit out some sort of "changed" signal every time you
	touch it, or you risk forcing an updating in the GuppiPlotCanvas N
	times when GuppiPlot is screwed up.  We get around this by
	basically cacheing (is that spelled with an 'e'?) changed to
	GuppiPlot.  Changes don't take effect until guppi_plot_push() is
	called, which is also when the "changed" signal is emitted.
	(guppi_plot_foreach_element): Since we've hidden the list of views
	inside of GuppiPlotPrivate, this foreach function is provided as a
	way for external code to iterate over all the plot's elements. 

	Of course, I should note that the only changes to a GuppiPlot that
	are currently possible are to add more elements.  Deletion isn't

	(Modification is a tricker question: the only reasonable thing to
	do might be to require that modifications be accomplished by
	deleteing something and then re-adding it in a different way.  But
	I need to think about that question some more...)

	* src/libguppiplot/guppi-layout.c (guppi_layout_connect_geometry):
	Here is where we do the black deed and violate GuppiGeometry's
	encapsulation.  We listen for a "changed_size" from the
	GuppiGeometry, and do a guppi_layout_calc_delayed on emission.  If
	another layout was already listening, we uncerimoniously
	disconnect them.
	(guppi_layout_bounds): Added.  I thought I needed this.  It turns
	out I didn't, but it might come in handy later.
	(matrix_normalize_row): Gratuitous optimization to remove 
	some unnecessary multiplies from inside of the loop.
	(matrix_row_is_nonzero): Gratuitous optimization.
	(matrix_column_is_nonzero): Gratuitous optimization.
	(matrix_row_dot): Gratuitous optimization.
	(matrix_subtract_scaled_row_from_row): Gratuitous optimization.
	All sorts of other gratuitous optimization would be possible
	in this matrix code.
	(term_copy): Added.
	(rule_add_term): Added.
	(rule_copy): Added.
	(rule_list_copy): Added.
	(rule_list_free): Added.
	(geom_list_copy): Added.
	(geom_list_free): Added.
	(guppi_layout_finalize): Cleaned up w/ new convenience functions.
	(guppi_layout_copy): Added.
	(guppi_layout_calc_flush): Added.

	* src/libguppiplot/guppi-geometry.c
	(guppi_geometry_disconnect_from_layout): We use the dreaded bit of
	non-opaque state to store the handle of the signal connection that
	sends a request for a new layout operation to a GuppiLayout when
	the GuppiGeometry emits "changed_size".  Each GuppiGeometry should
	be sending this message to exactly one GuppiLayout; by storing the
	handle here, it simplifies thing when we reconnect to a different
	GuppiLayout and want to disconnect the old signal, at which point
	we might not have easy access to a pointer to the old GuppiLayout.

	* src/libguppiplot/guppi-geometry.h: In a major act of programming
	grossness, I've added a bit of non-opaque state to GuppiGeometry
	to try to avoid a circular dependency with GuppiLayout, a guint
	named abusive_layout_signal_hack.  Shame on me.

	* src/libguppiplot/guppi-style.c (guppi_style_stock): I sure hate
	those default XL colors that Jody put in here, so I've switch over
	to what is (IMHO) a much more attractive set of colors.
	(guppi_style_stock_alien): Meanwhile, you can still construct an
	XLish color scheme by using these styles.  I guess I should have
	called this function guppi_style_stock_XL, but I just couldn't
	bring myself to do that.
	
	* plug-ins/plot/text/guppi-text-print.c (print): In a canvas item,
	text gets rendered in the center of the bounding box, whereas here
	it was getting rendered flush along the bottom.  Changed to be
	consistant w/ the canvas item.  (This should be a text element
	option eventually.)

	* src/guppi/guppi-app.c (about_cb): Replace the old gnome_about
	dialog with our shiny new guppi_about.

	* src/guppi/about.c (guppi_about): Added.  A better "about"
	dialog that gives credit where credit is due.

	
2000-08-24  Andrew Chatham  <andrew.chatham@duke.edu>

	* src/libguppiuseful/guppi-python.c
	(guppi_python_load_plug_in): added
	(guppi_python_module_init): Changed script directory to a 
 	Python-specific subdirectory of GUPPI_SCRIPTS
	
	* src/guppi/hacked-pie-demo.py: Updated to match pie-demo.scm

	* build-tools/generate.py:
	(_obj2inst, register_classes): Moved per-module functions to
 	python-modules/Guppi/plot/end.py.
	(FunctionDefsParser.[options|get_plugin_info) : Added code to
 	parse the .plugin files and implement lazy module loading.
	(Object.defineinit): Now will only take the shortest constructor.

	* python-modules/Guppi/plot/start.py:
	(LazyModule, LazyPluginModule): Created a class which appears to
	be a module as far as the rest of the code is concerned but which
	is only initialized when it is actually used.

	* plug-ins/plot/*/*.defs: Added a "(plugin mypluginfile.plugin)"
	option for each plot plugin.

	
2000-08-24  Jon Trowbridge  <trow@gnu.org>
	
	* src/libguppiuseful/guppi-useful.defs: Added new plug-in fns
	to bindings.

	* src/libguppiuseful/guppi-plug-in-spec.c
	(guppi_plug_in_exists): Added.
	(guppi_plug_in_is_loaded): Added.
	(guppi_plug_in_force_load): Added.

	* src/libguppiuseful/guppi-python.c: Fixed python path cpp variable.
	(I lumped this stuff all together into a common scripts dir,
	which might have been the wrong thing to do.)

	
2000-08-24  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Fix cut-n-paste-o.

	
2000-08-24  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-splash.c (guppi_splash_text): Removed
	developers from default text splash.  Modesty is a virtue.

	* src/libguppiuseful/guppi-version.c (guppi_developers): Added
	other worthy people to the list of developers.
	(guppi_helpers): Added.  These are more worthy people.

	* src/guppi/guppi.c (main): Added --paths cmd line arg, to
	print search paths on the console.
	(real_main): Added code implementing --paths.  Right now it
	only does the plug-in paths; the others should be added.

	* src/libguppiuseful/guppi-plug-in-spec.c
	(guppi_plug_in_path_reset_to_default): Fixed name of cpp variable
	containing default plug-in path.  Changed not to use default path
	when runnning in-place.  (This allow local development to occur
	when a version is also installed.)
	(guppi_plug_in_path_dump): Added function to print the
	plug-in search path to the console.  Useful for debugging.

2000-08-22  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-plug-in-spec.c: Improved error handle
	and argument handling in several of the functions.

	* src/guppi/guppi.c (real_main): Check if we are successful in
	our search for plug-ins.  If not, warn the user that something
	is terribly wrong.

	* src/libguppiuseful/guppi-plug-in-spec.c (guppi_plug_in_count): Added.
	(guppi_plug_in_count_by_type): Added.

2000-08-21  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot-canvas.c (find_local_tool): Fixed
	bug with key tools.  (Passed in button # to _local_key_tool()
	rather than key_code.  Duh!

	* plug-ins/plot/scatter/guppi-scatter-view.c: Added code to
	expose the scatter styles via the get_style_bounds/get_style
	vfunctions.

	* plug-ins/plot/scatter/guppi-scatter-tools.c
	(guppi_scatter_toolkit_default): Added.

	* plug-ins/plot/scatter/guppi-scatter-item.c
	(guppi_scatter_item_class_init): Added item class toolkit.

	* plug-ins/plot/text/guppi-text-item.c (state_changed): Fixed to
	just call request_update(), rather than to try to do part of the
	update process itself.  What was I thinking?
	(view_changed): Ditto.

	* plug-ins/plot/scatter/guppi-scatter-style.c: Added object args.

	* src/libguppitank/demo-scatter.c: Added.  A test prog for 
	GuppiObjectScatter.
	
	* src/libguppitank/guppi-object-scatter.c: Added.  A GuppiObject
	implementation for scatter plots.

	* src/libguppiplot/guppi-plot.c: Removed all of the "scheduled
	layout" ops; the right place for those to be is in guppi-layout.
	(guppi_plot_set_size): Now just propogates info to
	guppi_layout_set_bounds().

	* src/libguppiplot/guppi-layout.c: A bit overhaul.  Besides some
	trivial API changes, the way that layouts are calculated has
	been changed quite a bit.  High points include:
	+ Nicer matrix op code.
	+ Div by zero and other floating point errors avoided.
	+ Helpful (?) error messages are emitted if the linear system
	  is unsolvable.
	+ Redunant rules are recognized and removed... this has been a
	  big source of problems in the past (for me at least).

	* src/libguppiplot/guppi-marker.c: Added "canonical" marker names,
	so as not to fail in strange ways due to i18n.

	* src/libguppiplot/guppi-geometry.c (guppi_geometry_positioned): Added.
	Lets us track if a GuppiGeometry is not yet initialized.
	(guppi_geometry_set_user_data): Certain bits of debugging are
	easier when this info is exposed.
	(guppi_geometry_calc_natural_size_real): The calc-natural-size code
	has been restructured to avoid unnecessary calls to the item
	size-calculation callbacks.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_changed_delayed): Don't defer changed signals
	is guppi_is_synchronous().
	(guppi_element_view_style_bounds): Added.
	(guppi_element_view_style_in_bounds): Added.
	(guppi_element_view_style): Added.  This is all part of an abstraction
	that lets you access element styles w/ minimal knowledge of the
	semantics of the element in question.

	* src/libguppiplot/guppi-element-state.c
	(guppi_element_state_changed_delayed): Don't defer changed signals
	if guppi_is_synchronous().

	* src/libguppiplot/guppi-element-canvas-item.c (update): Skip update
	for non-visible items.
	(render): Skip rendering non-visible items.

	* src/libguppiplot/guppi-style.c: Added support for object args.

	* src/libguppiuseful/guppi-defaults.c: Added different sizes of
	default fonts, to give us a better way of having some control
	while still being totally abstract.

	* src/libguppiuseful/guppi-paths.c (development_path_hacks): We
	want to be able to run stuff from inside of libguppitank and
	still use our development stuff rather than the installed libs.

	* src/libguppiuseful/guppi-debug.c (guppi_set_synchronous): Added.
	(guppi_is_synchronous): Added.
	This defines a "synchronous" flag in Guppi that the *_delayed()
	version of object-change-signal-emitting functions check and,
	if set, they emit the signal right away rather than in an idle loop.
	This makes debugging easier, as it allows you to track down who
	is making the call too guppi_foo_changed_delayed().

2000-08-16  Jody Goldberg <jgoldberg@home.com>

	* plug-ins/plot/scatter/guppi-scatter-state.c : Add size1_data, and
	  size2_data arguments.

2000-08-16  Jon Trowbridge  <trow@gnu.org>

	* plug-ins: Added a bunch of *.plugin files.  Hacked on the
	build to set up directoryification.
	
	* src/libguppiuseful/guppi-plug-in-spec.c: Added.  GuppiPlugInSpec
	objects are created from *.plugin files, and are used as proxies
	for information about plug-ins before they are loaded.
	All of the various indexing of plug-ins has been moved here.
	So functions in the guppi_plug_in_ namespace are defined here;
	that naming has been preserved for clarity and for backwards
	compatibility.

	* src/libguppiuseful/guppi-plug-in.c: Stripped out all of the
	indexing; plug-ins are now not loaded at start-up.

	* src/libguppidata/guppi-data-transform.c: Added standardize
	and logit transforms.

	* src/libguppiuseful/guppi-paths.c (development_path_hacks): Made
	public.
	(guppi_pixmap_path_add): Added.
	(guppi_find_pixmap): Now uses g_concat_dir_and_file and the pixmap
	path list.
	(guppi_script_path_add): Added.
	(guppi_find_script): Now uses g_concat_dir_and_file and the script
	path list.  Guile-specific nomenclature removed.
	(guppi_glade_path_register): Renamed so as to not conflict with...
	(guppi_glade_path_add): ...this added function.
	(guppi_glade_path): Hacked to use glade path list.

2000-08-14  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Add a preliminary check for gnumeric

	* plug-ins/plot/pie/guppi-pie-state.c :
	  Add a 'use_stock_colors' argument that indicates whether to fall
	  back on the default colour immediately, or to use the stock styles
	  first.

2000-08-12  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiplot/guppi-style.c (guppi_style_stoc) : localize this a
	  bit more and add a list of colours similar to those used by office.

	* plug-ins/plot/barchart/guppi-barchart-state.c :
	  Add a 'use_stock_colors' argument that indicates whether to fall
	  back on the default colour immediately, or to use the stock styles
	  first.

2000-08-12  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-shared.c (guppi_shared_set_inner): Minor
	clean-ups.

	* src/libguppiplot/guppi-plot-window.c
 	(guppi_plot_window_build_tool_palette): Check if any item in the
 	plot uses the vp coordinate system before adding the basic tools.

	* src/libguppiplot/guppi-element-view.c (x_vi_changed_held):
 	Removed problematic "while_alive" signal connection.
	(y_vi_changed_held): Ditto.

	* src/libguppiplot/guppi-element-canvas-item.h: Added
 	uses_vp_coordinates flag.

	* src/libguppiplot/guppi-basic-tools.c: Set toolbar images
	for all toolkits.

	* src/libguppidataui/guppi-data-tree-view.c
 	(guppi_data_tree_view_build_node): Added lock icon next to
 	read-only data items.
	(guppi_data_tree_view_construct): Adjusted # of columns in
	ctree.

	* plug-ins/plot/scatter/guppi-scatter-tools.c: Set toolbar
	image for all toolkits.

	* plug-ins/plot/scatter/guppi-scatter-item.c
 	(guppi_scatter_item_class_init): Set uses_vp_coordinates flag to
 	TRUE.

	* plug-ins/plot/barchart/guppi-barchart-tools.c
 	(guppi_barchart_toolkit_style_toggle): Added.
	(guppi_barchart_tool_new_cycle_style): Set supported type.
	(guppi_barchart_tool_new_cycle_orientation): Set supported type.
	(guppi_barchart_tool_new_bar_callback): Set supported type.

	* plug-ins/plot/barchart/guppi-barchart-item.c
 	(build_toolkit_vec): Added.

2000-08-11  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (build_toolkit_vec):
 	Add the brushing toolkit to the toolkit_vec.

	* plug-ins/plot/scatter/guppi-scatter-state.c
 	(guppi_scatter_state_brush_rectangle): Silently return if one data
 	element is NULL.  It isn't an error to try to brush an empty
 	canvas...
	(guppi_scatter_state_brush_circle): Silently return if one data
 	element is NULL.
	(guppi_scatter_state_init): Changed some connect()s to
 	connect_while_alive()s.

	* plug-ins/plot/scatter/guppi-scatter-tools.c
 	(guppi_scatter_toolkit_brush): Added brushing toolkit.
	(guppi_scatter_tool_radius_brush): Added supported type info.
	(guppi_scatter_tool_frame_brush): Added supported type.
	
	* plug-ins/plot/boxplot/guppi-boxplot-print.c (print): Move
	the whiskers to the 5/95 points found in the state.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c (update): Changed our
	paths to put the whiskers at the 5% and 95% points calculated
	in the state object. (The 5/95 aren't hard-wired here, just
	in the state.)

	* plug-ins/plot/boxplot/guppi-boxplot-state.c (data_change_cb):
 	Calculate the 5% and 95% percentiles of the data, and save this
 	info for the "whiskers" of the plot.  This needs to be
 	parameterized.

	* plug-ins/data_impl/seq_scalar/func.c
 	(guppi_seq_scalar_func_impl_set_arg): Changed to listen to the arg
 	data for "changed" signals, and to forward these signals.

	* src/libguppiplot/guppi-element-view.c: Changed many connect()s
 	and connect_object()s to connect_while_alive()s and
 	connect_object_while_alive()s.

	* src/libguppiplot/guppi-element-state.c: Removed some deprecated
 	stuff that had been wrapped in #if 0/#endif for a while.
	(guppi_element_state_connect_to_object): Changed to
 	connect_object_while_alive.

	* src/libguppiplot/guppi-shared.c (guppi_shared_set_inner): Changed
	to use signal_connect_after, to correctly handle new data
	changed signal semantics.

	* src/libguppidata/guppi-seq-scalar.c
 	(guppi_seq_scalar_percentile): Added, along with a fairly
 	efficient default implementation.

	* src/libguppidata/guppi-seq-scalar-impl.h: Added percentile
	virtual function.

	* src/libguppidata/guppi-data.c (guppi_data_new): Listen for
	impl changed signals, convert into a guppi_data_touch.
	(guppi_data_newv): Ditto.

	* src/libguppidata/guppi-data-impl.c (guppi_data_impl_class_init):
 	Added impl changed signals.
	(guppi_data_impl_changed): Added.
	(guppi_data_impl_touch): Added.
	These last two functions are meant to mirror the guppi_data_ versions,
	but they don't currently get the connect/connect_after semantics
	right.

	* plug-ins/plot/pie/guppi-pie-state.c (guppi_pie_state_init): Changed
	signal to _connect_after().
	(connect_slice_and_offset_data): Changed to use new signal semantics.

	* src/libguppidata/guppi-struct.c (guppi_struct_set): #if-ed out
	direct signal emission.  What was I thinking?

	* src/libguppidata/guppi-data-tree.c
	(guppi_data_tree_node_add_sibling_here): Stray & gratuitous
	manipulation of iter removed.
	(guppi_data_tree_node_parent): Unused.  #ifdef-ed out to shut up
	the compiler.

	* src/libguppidata/guppi-seq-string.c: Boy I'm tired of writing
	ChangeLog entries.

	* src/libguppiplot/guppi-seq-style.c: Uh huh.

	* src/libguppidata/guppi-seq-object.c: Ditto.

	* src/libguppidata/guppi-seq-integer.c: Ditto.

	* src/libguppidata/guppi-seq-boolean.c: Moved all state-changing
	operations to callbacks.

	* src/libguppidata/guppi-seq-scalar.c: Moved all state-changes
	to callbacks.

	* src/libguppidata/guppi-seq.c: Removed the horror of before/after
	signals.  The new semantics (described below) are much nicer.
	Added GuppiDataOp_Seq struct and a whole bunch of callbacks to
	do the work of the setters.
	(guppi_seq_class_init): All signals are now GTK_RUN_LAST.  Old
	stupid signals are gone.

	* src/libguppidata/guppi-data.c: Removed freeze/thaw mechanism.
	Removed guppi_data_get_impl_type; it was useless.
	Removed the "hook" stuff.  It seemed like a good idea at the time,
	but never got used.
	(guppi_data_add_pending_op): Added.
	(process_pending_op): Added.
	(changed): Added.  Does nothing but process pending ops.
	(changed_label): Added string arg to signal.  All state-changing
	work now happens in the default handler.
	(guppi_data_class_init): Made all signals GTK_RUN_LAST.
	(guppi_data_changed): The sematics of this function have changed:
	it should now never be called unless you have registered a pending
	op, or bad things will happen.  If you want to just cause a 
	quasi-spurious changed signal to be thrown off by an a data object,
	you should...
	(guppi_data_touch): ...use this function instead, which registers
	a no-op operation before emitting the changed signal.

	* src/libguppidata: OK, there are a lot of changes here that
	will not make sense without some meta-explanation.
	When our GuppiData objects change state, they emit various
	signals.  There is a base "changed" signal associated with
	GuppiData, and subclasses (like GuppiSeq) emit finer-grained signals
	describing what sort of change occurred.
	Now sometimes we want to be able to control when we catch those
	comments; it can be occasionally useful to connect a callback
	for before the change is made, while other times we want to be
	sure our callback gets the object afterwards.
	Now to do this, a few things have to happen:
	(1) All signals must be GTK_RUN_LAST.
	(2) All changes to the state must actually happen in the
	    default signal handlers.
	(3) In fact, all changes must happen in the "base" GuppiData
	    "changed" signal, and the finer-grained signals can't do
	    anything other than invoke the base signal.
	Now the problem is that our signal args usually don't carry
	enough info to actually make the changes.  So to get around
	this, I've introduces a simple little marshalling/callback
	driven approach.  A function that is supposed to change the
	state of an object does nothing but register a callback and
	some data (the info needed for the actual state change), then
	calls the appropriate "emit this signal" function.  Things
	chain down, and eventually the base "changed" signal gets called,
	which then invokes the callback that actually changes the state
	of our object.
	This is a bit hairy and indirect, but it does give us the
	right semantics: you can either _connect() or _connect_after()
	your signal, and The Right Thing(tm) will happen.

	* plug-ins/plot/text/guppi-text-print.c: Missing
	#include <guppi-useful.h> was causing the gnome_font_get_size
	backwards compatibility macro to not be seen, causing it to be
	interpreted as an unknown function (w/ gnome-print 0.20) and
	leading to an unhappy crash when printing.

	* plug-ins/plot/scatter/guppi-scatter-state.c
	(guppi_scatter_state_brush_from_boolean_data): Removed
	guppi_data_freeze & guppi_data_thaw calls.  If this ends up being
	inefficient, I'll just need to make the integer sequence smarter.

	* plug-ins/plot/scatter/guppi-scatter-item.c (build_toolkit_vec):
	Added a toolkit vec containing the drag toolkit.

	* plug-ins/plot/scatter/guppi-scatter-tools.c
	(guppi_scatter_toolkit_drag): Added drag toolkit.

	* src/libguppidata/guppi-seq-boolean-impl.h:
	* plug-ins/data_impl/seq_boolean/guppi-seq-boolean-core-impl.c
	(v_seq_boolean_set_many): Made the gint* indices arg const.

2000-08-10  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/guppi-chart-selector.c : We can not add and
	  remove canvases to the dialog when used as a control.  Something
	  goes Kaboom!  Modify the dialog to use one GuppiPlotCanvas and
	  to just change the state as the plot types change.

	* src/libguppiplot/guppi-plot-canvas.c (size_allocate) : Do not crash
	  if we are realized with no state.
	(guppi_plot_canvas_add_item) : merge into
	(guppi_plot_canvas_set_state) : here.  Add support for resetting
	  the state.  Merge with
	(guppi_plot_canvas_set_state_group) : this.  It's name was not good.
	(guppi_plot_canvas_clear_items) : New routine.

	* src/libguppibonobo/guppi-bonobo-view.c : Pass a NULL
	  GnomeCanvasGroup to guppi_plot_canvas_set_state.
	* src/libguppiplot/guppi-plot-window.c : Ditto.
	* src/libguppitank/guppi-object.c : Ditto.

2000-08-10  Jody Goldberg <jgoldberg@home.com>

	* src/guppi-gnumeric/test.c : suppress warnings.
	* src/libguppiplot/guppi-chart-type.c : suppress warnings.

	* src/libguppiplot/guppi-plot.c
	(guppi_plot_make_canvas) : Delete, and move guts.

	* src/libguppiplot/guppi-plot-canvas.c
	  (guppi_plot_canvas_set_state_group) : Here.
	  (guppi_plot_canvas_set_state) : Wrapper to use root canvas group.
	  (guppi_plot_canvas_new) : Reenable.

	* src/guppi-gnumeric/guppi-chart-selector.c : Move to new
	  guppi_plot_canvas_new, guppi_plot_canvas_set_state methodology.
	* src/libguppibonobo/guppi-bonobo-view.c : Ditto.
	* src/libguppiplot/guppi-plot-window.c : Ditto.
	* src/libguppitank/guppi-object.c : Ditto.

	* plug-ins/plot/*/guppi-*-view.c (make_canvas_item) :
	  Take a GnomeCanvasGroup as an argument rather than using the root
	  group.

	* plug-ins/plot/barchart/guppi-barchart-state.c
	(guppi_barchart_state_set_arg) : Handle setting horizontal vs vertical
	bars.

2000-08-10  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot-canvas.c
 	(guppi_plot_canvas_set_insensitive): Added.  When called (before
	the canvas is realized), all key bindings, mouse clicks and DnD
	are disabled.  (In particular, the widget doesn't capture all
	keystrokes from its parent.)
	

2000-08-09  Jon Trowbridge  <trow@gnu.org>

	* src/guppi-gnumeric/guppi-chart-selector.c (cb_sample_pressed): 
	s/guppi_plot_canvas_new/guppi_plot_make_canvas/

	* src/libguppiplot/guppi-plot-canvas.h: A serious bit of API
 	confusion has been cleared up.  There have been two
 	almost-identical functions floating around:
	
	   GtkWidget* guppi_plot_make_canvas(GuppiPlot*);
	
	and 
	
	   GtkWidget* guppi_plot_canvas_new(GuppiPlot*);
	
	As it turns out (and I'd forgotten this), the one to use was
	make_canvas.  canvas_new did very little, and was called by
	make_canvas. 
 	
	The historical reason for this is that you need to fiddle with
 	GuppiPlot internals to build the canvas up properly... this
	happened in make_canvas.  There used to be some evil fiddling
	with GuppiPlotCanvas internals that was done in canvas_new,
	but that is no longer necessary.  So to simplify things, I've
	removed guppi_plot_canvas_new() from the API and instead
	exposed guppi_plot_canvas_set_state() to do the little
	canvas-specific initialization needed --- this gets called
	by guppi_plot_make_canvas(), you shouldn't need to ever call it
	unless you are doing something really strange.  (Apologies
	to Jody for the grief this caused him.)

	* plug-ins/data_impl/seq_scalar/func.c
 	(guppi_seq_scalar_func_impl_class_init): Removed broken quartile
 	and range query functions; the defaults in the implementation now
 	do a very good job.

	* plug-ins/data_impl/seq_scalar/core.c: Gutted like a fish,
	with code being moved to guppi-seq-scalar.c.

	* src/libguppidata/guppi-seq-scalar.c: Radical overhaul.  Lots of
 	concepts from the core implementation have been ripped out of
 	there and added to the interface (the sorted copy, the fast range
 	query, etc.).  This stuff turns out to be fairly universal, and is
 	a *big* performance win for calculated objects.  As long as it is
 	all largely overrideable, I don't think that there is any harm in
 	imposing this level of "policy" in the interface.

	* src/libguppidata/guppi-data-transform.c: Added sq, exp, abs
	transforms.  The question of missing values still needs to
	be addressed.

	* src/libguppidata/guppi-data-tree.c
 	(guppi_data_tree_node_add_sibling_here): Added.
	(guppi_data_tree_add_beside): Make added element end up
	adjacent to the specified data, not just in the same group.

	* src/libguppiplot/guppi-plot-canvas.c (size_allocate): Change
	our default resize semantics to be somewhat nicer: on a resize,
	do an optimal fit if the result is a larger scale.

	* src/libguppiplot/guppi-plot-window.c (do_print_cb): Added #ifdef
 	to avoid using gnome_print_master_get_paper() if we are using an
 	older gnome-print.

	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_vp2c_d_bulk): Added.

	* src/libguppiplot/guppi-chart-type.c: 
	* src/libguppiplot/guppi-chart-type.h: Moved
 	#include <gdk-pixbuf/gdk-pixbuf.h> from the .c to the .h file.

	* src/libguppiplot/guppi-view-interval.c
 	(guppi_view_interval_conv_bulk): Added.
	(guppi_view_interval_unconv_bulk): Added.

	* src/libguppistat/guppi-simple-linreg.c
 	(guppi_simple_linreg_recalc): Added forgotten cast to silence
 	compiler warning.

	* plug-ins/plot/pie/guppi-pie-register.c (guppi_piechart_factory):
 	Removed explicit call to guppi_plot_calc_layout.

	* plug-ins/plot/scatter/guppi-scatter-item.c (render): Add "speed
 	rendering code" as an experiment.  Disabled for now.


2000-08-08  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/seq_scalar/core.c (v_seq_scalar_quartiles):
 	Make our quartile calculator use the sorted copy, if available.

	* src/libguppiplot/guppi-plot-canvas.c (size_allocate): Fixed
	canvas resize sematics.

	* src/libguppidata/guppi-seq-scalar.c (calc_quartiles): Added
	default, unoptimized calculation of quartiles.

	* src/libguppiuseful/guppi-paths.c (development_path_hacks): Added;
	checks if we are running from inside of src/guppi.
	(guppi_find_pixmap): Check if we are in src/guppi before adding
	../../pixmaps to our pixmap search path.
	(guppi_glade_path): Check if we are in src/guppi before adding
	the relative directories .. and ../../plug-ins to our glade
	search path.
	(This fixes the slow start-up bug experienced by Cesar when he
	ran guppi installed, which I never do...)

	* plug-ins/data_impl/seq_scalar/calc.c
	(guppi_seq_scalar_calc_impl_class_init): Disable all missing
	values functions.  When this is done, the sequence interface
	reports all values as present.

	* plug-ins/data_impl/seq_scalar/func.c (v_seq_has_missing): Added.
	(v_seq_missing): Added.
	Missing values support is still incomplete here (and in lots
	of other places as well...)

	* plug-ins/data_impl/seq_scalar/core.c: Removed v_seq_scalar_range
	function; that functionality is now in the interface layer.
	(v_seq_scalar_quartiles): Removed caching of quartiles; we can
	still do the calculation more efficiently down here, though.
	(v_seq_scalar_set): Fixed to work with with missing values.
	(v_seq_scalar_insert): Fixed to work with missing values.
	(v_seq_scalar_insert_many): Fixed to work with missing values.
	(v_seq_scalar_range_query): Removed min/max optimization; moved
	to interface layer.
	(v_seq_insert_missing): Added.
	(v_seq_delete_many): Fixed to work with missing values.
	(guppi_seq_scalar_core_impl_class_init): Fixed vtable set-up.

	* plug-ins/data_impl/seq_boolean/guppi-seq-boolean-core-impl.c: This
	baby has gotten a lot of love over the last few days. 
	(ASIZE): Correctly calculate needed array size, properly handling
	multiples of 32.
	(LAST_MASK): Added needed guint32 cast to ~0.
	(v_seq_boolean_insert): Revamped & simplified.  Now correct in
	all cases.
	(v_seq_boolean_insert_many): Revamped & simplfied.  Now correct
	in all cases.
	(v_seq_delete_many): Revamped & simplified.  Now correct in all
	cases.
	(v_seq_grow_to_include): Fixed.
	This "fixed" and "correct" talk sounds overly-optimistic, and
	probably is... but at least now this code has undergone pretty
	extensive testing, and at least has done the right thing in
	several million randomly-generated test cases.
	(v_data_copy): s/sizeof(double)/sizeof(guint32)/.  Obviously
	a cut&paste mistake from seq-scalar.

	* src/libguppidataui/guppi-data-tree-view.c (build_data_popup):
	Added; dynamically builds a popup menu of possible transformation
	types.
	(button_press_event): Check for mouse-3, pop up the transform
	menu.

	* src/libguppistat/guppi-simple-linreg.c
	(guppi_simple_linreg_recalc): Tweaked to ignore missing values
	when calculating.

	* src/libguppidata/guppi-data.defs: Add bindings for our
	new missing values API for sequences.

	* src/libguppidata/guppi-data-init.c (guppi_data_init): Added
	call to guppi_data_transforms_init().

	* src/libguppidata/guppi-data-transform.h: 
	* src/libguppidata/guppi-data-transform.c: Added; Some simple code
	for data transforms.

	* src/libguppidata/guppi-data.c (build_impl_by_name): Check that
	the implementation we constructed is of the right type for our
	interface.  (This check was alread in the build-by-type code,
	but was left out of build-by-name by mistake.)

	* src/libguppidata/guppi-seq-scalar.h: 
	* src/libguppidata/guppi-seq-scalar.c: Moved stat-caching 
	into the interface, where it belongs.  Made the fallback
	stat calculation routines do the right thing in the presence
	of missing values.

	* src/libguppidata/guppi-seq-impl.h: 
	* src/libguppidata/guppi-seq-impl.c: Added virtual function hooks
	for missing values functions, and an (optional) default
	implementation that embeds a boolean sequence to store "missing"
	flags.

	* src/libguppidata/guppi-seq.h: 
	* src/libguppidata/guppi-seq.c: Added missing values API and
	guppi_seq_delete_range() convenience function.  Un-const-ified
	several function args.

	* src/libguppiuseful/guppi-garray.c: Changed from using a g_array
	to doing things "by hand".

	
2000-08-05  Jody Goldberg <jgoldberg@home.com>

	* configure.in : Improve the handling of --disable-python
	Add src/guppi-gnumeric/Makefile.
	Add src/guppi-gnumeric/guppi-gnumeric.oafinfo


2000-08-03  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-element-state.h:
	* src/libguppiplot/guppi-element-state.c:
	* src/libguppiplot/guppi-element-view.h:
	* src/libguppiplot/guppi-element-view.c:
	* src/libguppiplot/guppi-element-canvas-item.h:
	* src/libguppiplot/guppi-element-canvas-item.c:
	* src/libguppiplot/guppi-element-canvas-item.h:
	* src/libguppiplot/guppi-geometry.h:
	* src/libguppiplot/guppi-geometry.c:
	* src/libguppiplot/guppi-layout.h:
	* src/libguppiplot/guppi-layout.c: Made GuppiElementState,
	GuppiElementView, GuppiElementCanvasItem, GuppiGeometry,
	and GuppiLayout into opaque objects.  This involved some API
	extenstions and lots of lots of mindless tweaking of other files
	that touched these struct's contents directly.  (In the process
	I did some other decrufting of code.)

2000-08-03  Michael Meeks  <michael@helixcode.com>

	* configure.in: Fit for BonoboX

2000-08-02  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiplot/guppi-element-print.c
	  (guppi_element_print_setmatrix) : Delete, gnome_print_setmatrix
	  is now private.

2000-08-02  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidataui/guppi-data-select.c
	(guppi_data_select_set_selected_data): Added check that the data
	we are setting is actually of a valid type.  (Oops.)

	* src/libguppiuseful/guppi-convenient.c (guppi_2sort_i): Added;
	convenience routine for putting two integers into sorted order
	(parallel to guppi_2sort() for doubles).

	* src/libguppiplot/guppi-plot-canvas.c (popup_help_create,
	popup_help_cleanup_cb, popup_help_remove): Moved code for
	constructing/managing the popup help window into separate functions.
	(key_press_event, key_release_event): Call the popup help functions,
	rather than doing all of the work themselves.

	* src/libguppiplot/guppi-plot-toolkit.c
	(guppi_plot_toolkit_get_all_keys): Added.  Returns a list of all
	key bindings for that toolkit.  (Used by GuppiPlotToolhelp.)

	* src/libguppiplot/guppi-plot-toolhelp.c
	(guppi_plot_toolhelp_construct): Added a listing of key bindings,
	in addition to the mouse button bindings.

	* src/libguppiplot/guppi-basic-tools.c: Gave many of the tools more
	meaningful names.

	* src/libguppiplot/guppi-plot-tool.c (guppi_plot_tool_name,
	guppi_plot_tool_set_name): Added proper accessor/modifier functions
	for tool names.

	* src/libguppiplot/guppi-element-print.c
	(guppi_element_print_print): Don't print an object if the "hide"
	flag is set.

	* src/libguppiplot/guppi-element-canvas-item.c (render): Don't
	render an object if the "hide" flag is set.

	* src/libguppiplot/guppi-element-view.h: Added "hide" flag.

2000-08-01  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/seq_scalar: Hacks to deal with new python
	naming for generated files.

	* build-tools/generate.py: Changed name conversion scheme for 
	generated .py files.

	* src/libguppiplot/guppi-plot-tool.h: Added faux accessor for
	tool names.

	* src/libguppiplot/guppi-plot-canvas.c: Added code to pop up
	a GuppiPlotToolhelp when the question mark key is held down
	on a canvas.

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_find_inner): 
	Made "stat() failed" messages only appear in very-verbose mode.

	* src/libguppiuseful/guppi-convenient.h: Added
	backwards-compatibility macros for gnome-print.

	* src/libguppiplot/guppi-alpha-template.c: Added #ifdef hacks to
	removed dependence on unrelease (though far superior) gnome-print
	v0.21.

	* plug-ins/data_impl/curve/guppi-curve-func-impl.c: Finished
	basic implementation of calculated curves.  It works, but
	naming is all screwed up throughout data_impl: this needs to be
	fixed sooner rather than later.

	* plug-ins/data_impl/seq_scalar/func.c
	(guppi_seq_scalar_func_impl_set_arg): Added a bunch of calls to
	guppi_data_impl_changed() where needed.

	* src/libguppidata/guppi-data-impl.c (guppi_data_impl_changed): 
	Added empty shell of definition for the implementation changed
	signal invocation function.  Right now this does nothing.

	* src/libguppidata/guppi-curve.c (guppi_curve_get_bbox): Added
	fallback version of bounding box function.

2000-07-31  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/text/guppi-text-state.c
	(guppi_text_state_set_text): Check if text has actually changed,
	like all of the other modifiers do.  (This was causing a "signal
	cascade" in the new text configuration widget.)
	(guppi_text_state_set_outline_width): Changed the sematics of this
	function; it no longer does an implicit
	guppi_text_state_set_outline(foo, TRUE).
	(properties_tree): Added a semi-nice configuration widget that
	attaches to the property tree.

	* src/libguppiplot/guppi-alpha-template.c
	(guppi_alpha_template_text_general): Fixed bug which caused a
	segfault when attempting to rasterize the empty string.
	(guppi_alpha_template_print): If NULL is passed in as the alpha
	template to be printed to a GnomeCanvasBuf, just do nothing.

	* plug-ins/plot/axis/guppi-axis-print.c (print): Added code
	for printing axis legends.

	* src/libguppiuseful/guppi-convenient.c (guppi_tooltip): Added
	convenience function for tooltips.

	* plug-ins/plot/axis/guppi-axis-item.c (prepare_legend): Added
	code to rasterize legends.
	(render): If we have a legend already rasterized, paint it in the
	right place.

	* plug-ins/plot/axis/guppi-axis-state.h: 
	* plug-ins/plot/axis/guppi-axis-state.c: Added get/set functions
	for legend-related data.

	* src/libguppiplot/guppi-plot-window.c (configure_request_cb):
	Changed how we deal with configure events; if we get a configure
	event on an unknown "configuree", don't pop up the properties
	window.

	* src/libguppiuseful/guppi-properties.h:
	* src/libguppiuseful/guppi-properties.c: The properties dialog
	now sucks considerably less.  The selection control is now a 
	GtkCTree (what was I thinking when I originally based it on a
	GtkTree?), producing something that both looks nicer and has
	nicer code.  (The GtkCTree API is sort of messy, but it everything
	in there that you need; with the GtkTree, everything was an
	ass-backward hack.)

2000-07-30  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidataui/guppi-data-tree-view.c (button_press_event):
	All of the button press events were being swallowed up by the drag
	& drop code; added code to do the right thing if the tree
	expanders were being clicked.

	* plug-ins/plot/axis/guppi-axis-view.c (state_changed): Added call
	to guppi_geometry_calc_natural_size() on state changes.  (This fixes
	a bug where axis items were not resizing properly when legends
	were added or removed.)

	* src/guppi/guppi-app.c (guppi_app_realize): We don't need to
	respond to "destroy" signals on the app... that just causes
	problems: gtk_signal_connect() call removed.

	* src/libguppiuseful/guppi-paths.c (guppi_glade_path_scan_dir): 
	Annoying message about failed stat() calls now only shows up
	in "very-vebose" mode.

	* plug-ins/plot/scatter/guppi-scatter-state.c: Numerous changes
	to switch from using GuppiDataPickers to GuppiDataSelects in the
	state configuration dialog.
	(config_cb): Fix bug causing our dialog to not be properly
	initialized.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c (data_drop): Added
	drag & drop support.

	* plug-ins/plot/boxplot/guppi-boxplot-state.c
	(guppi_boxplot_state_data, (guppi_boxplot_state_set_data): Added
	accessors for the boxplot's connected data item.

	* plug-ins/plot/axis/guppi-axis-item.c (data_drop): Added drag &
	drop support.

	* plug-ins/plot/axis/guppi-axis-state.h: 
	* plug-ins/plot/axis/guppi-axis-state.c: 
	(guppi_axis_state_set_data, guppi_axis_state_data, 
	guppi_axis_state_init): A data object can now be tied to an
	access.

	* src/libguppiplot/guppi-plot-canvas.h: 
	* src/libguppiplot/guppi-plot-canvas.c: Added a whole steaming pile of
	drag & drop support.  You can now drop data onto individual 
	plot elements.  There are still some rough edges in terms of dealing
	with stacked elements and properly handling data acceptance.

	* src/libguppiplot/guppi-element-view.c (top_view_node_cb):
	Preliminary code for a nicer top-level configuration widget for
	views in the properties dialog.

	* src/libguppiplot/guppi-element-canvas-item.h: Added data_drop 
	function to vtable.  It is called when dragged data is dropped
	on the item.

	* src/libguppidataui/guppi-data-select.h:
	* src/libguppidataui/guppi-data-select.c: A new widget to replace
	GuppiDataPicker.  Nicer (IMHO) and supports DnD.
	
	* src/libguppidataui/guppi-data-tree-view.h: 
	* src/libguppidataui/guppi-data-tree-view.c: Added code to
	make this widget a drag source; individual rows of the
	ctree can be dragged as "guppi/data".

	* src/libguppiuseful/guppi-paths.c (guppi_glade_path): Added ".."
	to the search path for plug-ins, for convenience during
	development.

2000-07-25  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/seq_scalar: Reorganized code & build,
	got rid of annoyingly long file names.
	
	* build-tools/gen-scm.pl (parse_scheme): Added "fn_d__d_d" type
	for use by binary seq_scalar functions.

	* configure.in: Deconvoluted the check for readline.  I think it
	still works properly.

	* src/libguppidata/guppi-seq-scalar.c (guppi_seq_scalar_class_init):
	Added specification of implementation type via data_class->impl_type.
	This needs to be added for all of the various data types.

	* src/libguppidata/guppi-seq-scalar-impl.c: Added include to
	silence compiler warning.

	* src/libguppidata/guppi-data.h: 
	* src/libguppidata/guppi-data.c: 
	Cleaned up the implementation and API for our GuppiData virtual
	constructors.  Added lots of paranoid checking of arguments.
	(guppi_data_is_read_only): Check to see if the implementation class
	is flagged as read-only.
	(guppi_data_can_change): Made to return !guppi_data_is_read_only(arg).

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_load): Remove
	extraneous punctuation from splash message.

	* src/guppi/guppi.c (main): Rename the --gpl arg to --license.
	It just makes more sense.

	* src/libguppiuseful/guppi-splash.c (guppi_splash_create):
	Gracefully handle the premature destruction of our splash window.
	(guppi_splash_text): Slightly shorten our"splash text".

2000-07-24  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/data_impl/seq_scalar/guppi-seq-scalar-calc-impl.c:
	Finished implementing transformed sequences.  It all even seems to
	sort of work.  

	* plug-ins/data_impl/seq_scalar/guppi-seq-scalar-calc-impl.h:
	Added prototypes for new transformed sequence constructors.

	* src/libguppidata/guppi-array.c: Further butchered to keep it
	compiling.  This code does nothing useful, and needs to be
	rewritten properly.

	* src/libguppiuseful/guppi-fn-wrapper.c: A bunch of expressions
	g_return_val_if_fails() needs to take their != turned into ==.
	I'm such an idiot.

	* src/libguppiuseful/guppi-convenient.c (guppi_unref): Added anal
	check for non-zero refcount.

2000-07-23  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi.c: Fixed splash messages to be two-lined.

	* plug-ins/data_impl/seq_scalar/guppi-seq-scalar-calc-impl.h: 
	* plug-ins/data_impl/seq_scalar/guppi-seq-scalar-calc-impl.c:
	Minor tinkering.  Still doesn't actually do anything.

	* plug-ins/plot/barchart/guppi-barchart-view.c (make_canvas_item):
	Removed hideous old "hacky_click" code.
	(guppi_barchart_view_find_bar_at_position): Convenience function
	to find which bar is at a given point.

	* plug-ins/plot/barchart/guppi-barchart-state.h: 
	* plug-ins/plot/barchart/guppi-barchart-state.c: Removed the
	hated and feared "hacky_click" code.

	* plug-ins/plot/barchart/guppi-barchart-item.c
	(guppi_barchart_item_class_init): Added clicked_box signal.
	Removed old tool code.

	* plug-ins/plot/axis/guppi-axis-item.c
	(guppi_axis_item_class_init): Removed old tool code.

	* plug-ins/plot/axis/guppi-axis-state.c
	(guppi_axis_state_class_init): Added state type name.

	* plug-ins/plot/scatter/guppi-scatter-item.c
	(guppi_scatter_item_class_init): Removed old tool code.

	* plug-ins/plot/frame/guppi-frame-state.c
	(guppi_frame_state_class_init): Added state name.

	* plug-ins/plot/legend/guppi-legend-state.h: 
	* plug-ins/plot/legend/guppi-legend-state.c: Removed awful old
	"hacky_click" stuff.

	* plug-ins/plot/legend/guppi-legend-view.c (make_canvas_item):
	Removed crufty code related to the old "hacky_click" interface.

	* plug-ins/plot/legend/guppi-legend-item.c: Added clicked_box
	signal.

	* plug-ins/plot/pie/guppi-pie-tool.c: 
	(guppi_pie_toolkit_default): New toolkit.
	(guppi_pie_toolkit_explode): New toolkit.
	(guppi_pie_toolkit_spin): New toolkit.

	* plug-ins/plot/pie/guppi-pie-item.c: Added clicked_slice signal.
	(guppi_pie_item_class_init): Removed old tool code, added
	definition of build_toolkit_vec.

	* plug-ins/plot/slinreg/guppi-slinreg-statviewer.c: Removed
	obsolete slinreg_test function.

	* plug-ins/plot/text/guppi-text-state.c
	(guppi_text_state_class_init): Added a state type name.

	* src/libguppitank/guppi-object-barchart.c: Removed all of the
	hacky old mouse click callback stuff; extended callbacks so that
	mouse-1, mouse-2 or mouse-3 double-clicks can be connected to for
	either bars or legend boxes.

	* src/libguppitank/guppi-object-pie.c: Removed all of the hacky
	old mouse click callback stuff; extended callbacks so that
	mouse-1, mouse-2 or mouse-3 double-clicks can be connected to for
	either slices or legend boxes.

	* src/libguppitank/guppi-object.h: 
	* src/libguppitank/guppi-object.c: 
	Added widget_init to the vtable, which is called on newly-built
	GuppiPlotCanvas objects and which is useful for connecting signal
	callbacks (like to trap double-clicks).

	* src/libguppiplot/guppi-plot-canvas.h: 
	* src/libguppiplot/guppi-plot-canvas.c: Too much has changed to
	describe in detail.  Added a pop-up configure-select menu.
	(guppi_plot_canvas_find_item_by_view): Lets you access a
	canvas item by view.  Useful for connecting signal handlers
	and such.

	Totally new event dispatching off of mouse-click and keypress
	events (obtained by stealing key events from the top-level window)
	that does all of the right things to try to decide which tool
	should be applied to which item in stack of things below the point
	we clicked on.  Handle the execution of an items double-click
	callback on a double-click event.

	* src/libguppiplot/guppi-plot-toolkit.h: 
	* src/libguppiplot/guppi-plot-toolkit.c: 
	Fixed up reference counting; tools added to a toolkit are now sunk.
	(guppi_plot_toolkit_get_key_tool): Support for keybindings.
	(guppi_plot_toolkit_set_key_tool): Support for keybindings.
	(guppi_plot_toolkit_add_to_toolbar): Code for adding a button
	corresponding to a toolkit to a toolbar like the one created by
	GuppiPlotWindow.

	* src/libguppiplot/guppi-plot-tool.h: 
	* src/libguppiplot/guppi-plot-tool.c: Moved the generic tools
	out of this file and into guppi-basic-tools.[ch].
	(guppi_plot_tool_first): Function to activate a tool.
	(guppi_plot_tool_middle): "Mid-life" processing for a tool.
	(guppi_plot_tool_end): Tool deactivation.
	All of the code activation/use/decativation was tangled up in the
	event processing code that used to be in the GuppiElementCanvasItem
	event dispatcher.
	(guppi_plot_tool_supports_item): Test if a tool can act on a
	given item.

	* src/libguppiplot/guppi-plot-window.c: Added configure requests
	to allow the associated properties window to open to a specific
	page.  Added a toolbar that lets you flip between different
	toolkits in the associated GuppiPlotCanvas.

	* src/libguppiplot/guppi-element-canvas-item.c
	(guppi_element_canvas_item_vpath_vp2c): Handle coordinate
	transforms on an entire vpath with one function call.
	(guppi_element_canvas_item_vpath_pt2c): Another bulk coordinate
	transformer. 

	* src/libguppiplot/guppi-element-canvas-item.h: Removed old
	tool-related stuff, added new tool-related stuff.  Added
	build_toolkit_vec to the vtable so that items can declare a list
	of tools that can be used to manipulate them.  Added a
	double-click handler to the vtable.

	* src/libguppiplot/guppi-geometry.h: 
	* src/libguppiplot/guppi-geometry.c (guppi_geometry_contains): 
	Added convenience function.

	* src/libguppiplot/guppi-element-view.c
	(guppi_element_view_properties_tree): Save the view in the
	properties node, so that we can later call up pages by view.

	* src/libguppidata/guppi-curve-impl.h: 
	* src/libguppidata/guppi-curve-impl.c: Added sampling functions
	to the vtable.

	* src/libguppidata/guppi-curve.h: 
	* src/libguppidata/guppi-curve.c: Further work fleshing out the
	API, and the beginnings of an actual implementation.

	* src/libguppidata/guppi-seq-scalar.c (do_range_query): Changed to
	use guppi_2sort.
	(guppi_seq_scalar_range_query): Changed to use guppi_2sort.

	* src/libguppiuseful/guppi-useful.defs (guppi_splash_message):
	Changed definition of guppi_splash_message binding to reflect new
	args.
	
	* src/libguppiuseful/guppi-properties.h:
	* src/libguppiuseful/guppi-properties.c: Added code to open
	properties widget to specific pages, which required some revamping
	of internals.  This is all still fairly hacky.

	* src/libguppiuseful/guppi-python.c (guppi_python_init): Made
	the splash message two-lined.

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_load): Made
	splash message two-lined.

	* src/libguppiuseful/guppi-splash.h: 
	* src/libguppiuseful/guppi-splash.c: Switched from a one-line to
	two-line splash message, which is much nicer: changed the
	guppi_splash_message() args to take two strings, and made some
	internal changes to make it all work.

	* src/libguppiuseful/guppi-guile.h:
	* src/libguppiuseful/guppi-guile.c:
	Added scm2fn_* functions to wrap up scheme procedures in a
	GuppiFnWrapper so that we can eval them in a language-independent
	way.  I need to get Andrew to do similar constructions for Python
	when he gets back from the UK.

	* src/libguppiuseful/guppi-fn-wrapper.h: 
	* src/libguppiuseful/guppi-fn-wrapper.c: I really wish that
	C had lambda expressions; then this sort of thing wouldn't be
	necessary...

	* src/libguppiuseful/guppi-convenient.h: 
	* src/libguppiuseful/guppi-convenient.c: 
	Added more small convenience functions --- guppi_sink(),
	guppi_unref0(), guppi_2sort(), guppi_3sort(), guppi_between().

2000-07-19  Michael Meeks  <michael@helixcode.com>

	* build-tools/gen-scm.pl (parse_scheme): Really fix the problem
	with g_free. It seems most of the below is auto-generated =)

2000-07-18  Michael Meeks  <michael@helixcode.com>

	* src/libguppiuseful/guppi-guile.c s/g_free/free/ except in
	guppi_argv_free.

	* src/libguppiuseful/guppi-scm-useful.c: s/g_free/free/

	* src/libguppidata/guppi-scm-data.c: s/g_free/free/

	* src/guppi/app_scm.c (addsubtree): fix leak. s/g_free/free/

	* src/libguppiplot/guppi-scm-plot.c: s/g_free/free/

	* plug-ins/plot/text/guppi-scm-text.c (fn_scm_guppi_text_state_set_text):
	don't g_free memory not allocated with g_malloc;

Fri Jul 14 16:08:34 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-item.c
 	(guppi_axis_item_class_init): Added default binding for the
 	toggle_log_scale tool.

	* plug-ins/plot/axis/guppi-axis-tools.c: Added tool for toggling
	between linear- and log-scaled axes.

Wed Jul 12 16:40:36 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (render): Check
 	coordinate validity with respect to the view; skip invalid points.

	* plug-ins/plot/scatter/guppi-scatter-view.c (valid_range):
 	Calculate the range of data elements, taking validity with respect
 	to the view in to account.
	(preferred_x_range): Use valid_range().
	(preferred_y_range): Use valid_range().

	* src/libguppiplot/guppi-element-view.c (default_markers): Added
 	smarter default markers functions.

	* src/libguppiplot/guppi-plot-tool.c (drag_cb): Perform our
 	translation in conv-coordinates, to get the right effect in
 	non-linear coordinate systems.

	* src/libguppiplot/guppi-element-view.h: Added
 	guppi_element_view_valid_vp convenience macros.

	* src/libguppiplot/guppi-view-interval.h: More code related to
	log-scaled axes.  They mostly work now; reciprocal scaling
	is still broken.

	* src/libguppiplot/guppi-axis-markers.c
 	(guppi_axis_markers_populate_scalar): Add bounds checks as we
 	attempt to add to our set of markers.
	(guppi_axis_markers_populate_scalar_log): Code for choosing a nice
 	set of axis labels for log-scaled axes.  This could still use some
 	fine-tuning.

Wed Jul 12 00:08:22 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot: Lots of small changes to the plot plug-in init code,
	wrapping things in #ifdef HAVE_PYTHON.

	* src/guppi/guppi-app.c (guppi_app_setup_menus): Wrapped python
	scripting menu items and callbacks in #ifdef HAVE_PYTHONs.

	* src/libguppiuseful/guppi-useful.c: Accidentally left include of
 	guppi-python-useful.h outside of the #ifdef HAVE_PYTHON directive.

	
2000-07-13  Michael Meeks  <michael@helixcode.com>

	* configure.in: Hack about; add -lbonobo-print, make python less
	verbose, add standard status stuff at the end.

	* src/libguppibonobo/guppi-bonobo.h (guppi_bonobo_init): kill
	redundant parameters.

	* src/guppi/guppi.c (main): don't create splash if we have been
	oaf activated. (real_main): only do bonobo_init if we are a
	factory process.

	* src/libguppibonobo/guppi-bonobo-print.[ch]: Implement.

	* src/libguppibonobo/guppi-embeddable.c
	(guppi_bonobo_embeddable_destroy): unref the plot on embeddable
	destruction.

	* src/libguppibonobo/guppi-bonobo.c (guppi_bonobo_factory): add print
	interface.

	* src/libguppibonobo/guppi-bonobo-view.c (guppi_bonobo_view_factory): 
	whack the canvas into the view data. (guppi_bonobo_view_destroy):
	destroy the canvas.

	* src/libguppibonobo/guppi-embeddable.[ch]: Split view code.

	* src/libguppibonobo/guppi-view.[ch]: move it here

	* src/libguppibonobo/Makefile.am: Add guppi-view.[ch]

2000-07-12  Michael Meeks  <michael@helixcode.com>

	* src/libguppibonobo/guppi-embeddable.c (hello_bonobo_view_activate),
	(guppi_bonobo_view_class_init): hook in UI activation.

	* src/libguppiplot/guppi-alpha-template.c (get_gt1_font): 
	define out. (guppi_alpha_template_text_general): update for GnomeFont
	(my_gt1_glyph_outline_lookup): define out.
	(my_art_drect_bpath): ditto.

	* plug-ins/plot/text/guppi-text-state.c
 	(guppi_text_state_set_font_size): fix.

	* plug-ins/plot/text/guppi-text-state.h
 	(guppi_text_state_font_size): fix.

	* plug-ins/plot/axis/guppi-axis-print.c (print): fix.

Wed Jul 12 00:08:22 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-view-interval.c: Added some code related
	to transformed axes (for log-plots and such).

	* src/guppi/guppi.c (real_main): Reorder init sequence to call
 	guppi_bonobo_init() last.  This allows guppi to get fully
 	initialized before responding to any bonobo requests.

Tue Jul 11 21:57:15 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppibonobo/guppi-embeddable.c
 	(guppi_bonobo_view_factory): Added code to construct a widget from
 	the GuppiBonoboEmbeddable.
	(guppi_bonobo_embeddable_construct): Initialize our embeddables
 	with a stupid canned demo.

	* src/libguppiplot/guppi-element-canvas-item.c (update, render):
 	Check if the item's scale factor is >0 before executing its
 	update/render code.

Sun Jul  9 16:37:22 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object-pie.c
 	(guppi_object_pie_set_arg, guppi_object_pie_class_init, build):
 	Added parameters for controlling the fonts used in the plot.
	
	* src/libguppiuseful/guppi-useful.h: Added guppi-convenient.h.
	I hate doing this, because my next build is going to take
	forever...

	* src/libguppiuseful/guppi-convenient.h:
	* src/libguppiuseful/guppi-convenient.c: I'm sick and tired of
 	doings all sorts of checks for NULL and casts to GTK_OBJECT when
 	calling gtk_object_ref & gtk_object_unref, so I define some
 	convenience functions that will do it for me.  In the spirit of
 	cutting down keystrokes, I also add the mildly abusive
	guppi_refcounting_assign() macro.

	* src/libguppitank/guppi-object-barchart.c
 	(guppi_object_barchart_set_arg, guppi_object_barchart_class_init,
 	build): Added parameters for controlling the fonts used in the
 	plot.

	* src/libguppidata/guppi-seq-date.c (guppi_seq_date_new): Fixed
 	typo. 

	* src/libguppidata/guppi-seq-scalar-impl.c (v_seq_validate,
 	v_seq_get, v_seq_set, v_seq_insert): Added default method
	definitions.

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_find,
 	guppi_plug_in_find_all): Added routines to scan directory
 	structure, return the locations of plug-ins.
	(guppi_plug_in_load_dir, guppi_plug_in_load_all): Changed to use
 	the find routines to locate plug-ins to be loaded.

	* src/libguppiplot/guppi-seq-style.c (guppi_seq_style_new): 
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-string.c (guppi_seq_string_new): 
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-object.c (guppi_seq_object_new): 
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-struct.c (guppi_struct_new): 
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-integer.c (guppi_seq_integer_new):
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-date.c (guppi_seq_date_new): Changed
 	convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-boolean.c (guppi_seq_boolean_new):
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-seq-scalar.c (guppi_seq_scalar_new):
 	Changed convenience constructor to call guppi_data_newv.

	* src/libguppidata/guppi-data.c (guppi_data_newv): Added data
	constructor that uses the new implementation plug-in system.
	The constructor args are passed to the implementation.
	(guppi_data_new): var_args verison of guppi_data_newv.
	(guppi_data_impl): Because of the redesign of implemention handling,
	this function doesn't really do anything special anymore.

	* plug-ins/data_impl:
	* src/libguppidata: Moved all data type implementations into
 	plug-ins, and added code to GuppiData so that specific
 	implementations can be requested, and so that args can be passed
	to implementations.

Fri Jul  7 13:48:11 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-data.c (guppi_data_finalize): Move
	parent's finalize call to after local finalization.
		
	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_finalize): Fixed refcounting problem.

	* plug-ins/plot/scatter/guppi-scatter-style-view.c
 	(guppi_scatter_style_view_finalize): Fixed a rather heinous memory
 	leak.

	* plug-ins/plot/scatter/guppi-scatter-view.c (state_changed):
 	Added some needed refcounting.
	(guppi_scatter_view_finalize): Fixed potential memory leak.
	(view_init): Fixed refcounting.

	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_finalize):
 	Fixed memory leak.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c
 	(guppi_boxplot_item_finalize): Fixed memory leak.

	* plug-ins/plot/legend/guppi-legend-item.c
 	(guppi_legend_item_finalize): Fixed memory leak.

	* plug-ins/plot/linegraph/guppi-linegraph-item.c
 	(guppi_linegraph_item_finalize): Fixed memory leak.

	* plug-ins/plot/pie/guppi-pie-item.c (guppi_pie_item_finalize):
 	Fixed memory leak.

	* plug-ins/plot/text/guppi-text-item.c (guppi_text_item_finalize):
 	Fixed memory leak.

	* plug-ins/plot/scatter/guppi-scatter-item.c
 	(guppi_scatter_item_finalize): Fixed memory leak.

	* plug-ins/plot/axis/guppi-axis-state.c
 	(guppi_axis_state_finalize): Fixed memory leak.
	(guppi_axis_state_init): Fixed small refcount bug.

	* plug-ins/plot/barchart/guppi-barchart-state.c
 	(guppi_barchart_state_finalize): Plugged small memory leak.

	* plug-ins/plot/legend/guppi-legend-state.c
 	(guppi_legend_state_init): Fixed ref count bug.
	(guppi_legend_state_set_label_font): More anal type/NULL checking.
	(guppi_legend_state_finalize): Fixed small memory leak.

	* plug-ins/plot/pie/guppi-pie-state.c (guppi_pie_state_init):
 	Fixed ref count bug.
	(guppi_pie_state_finalize): Fixed memory leaks.
	(guppi_pie_state_set_label_font): Better checks for NULL font.

	* plug-ins/plot/slinreg/guppi-slinreg-state.c
 	(guppi_slinreg_state_finalize): Memory leaks.
	(guppi_slinreg_state_set_label_font): Extra checks for NULL font.

	* plug-ins/plot/text/guppi-text-state.c
 	(guppi_text_state_finalize): Plugged memory leak.
	(guppi_text_state_set_font_size): Plugged memory leak.
	(guppi_text_state_set_font): Added extra checks for NULL font.

Thu Jul  6 19:43:22 2000  Jody Goldberg <jgoldberg@home.com>

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_load_dir) :
	  plugin file names now have the format guppi_*.so

	* plugins/*/Makefile.am : Added -module -avoid-version to decrease the
	  number of files installed for each plugin.

2000-07-06  Andrew Chatham <andrew.chatham@duke.edu>

	* src/libguppiuseful/guppi-python.c (color2py):
	Changed color conversion to return PyInt's only. Returning as lists
	doesn't work, which I'll look into.

	* build-tools/generate.py:
	Fixed memory leak. Previously all code was of the form 
	"return convert_to_py(c_func(args,...))" This has all been changed
	so that arguments can be freed before returning if necessary (for
	argv). Still haven't actually tried any argv arguments, though.
	
2000-07-06  Michael Meeks  <michael@helixcode.com>

	* src/libguppibonobo/guppi-embeddable.c (guppi_bonobo_view_factory):
	set the view frame. (guppi_bonobo_embeddable_construct): handle
	errors nicely.

Wed Jul  5 23:19:34 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppitank/guppi-object.c (guppi_object_new): Added bar
 	charts to our virtual constructor.

	* src/libguppitank/guppi-object-barchart.c: Initial implementation
 	of GuppiObject for bar charts.

	* src/libguppitank/guppi-object-pie.c: Added support for radius,
 	radius_maximize, radius_lock args, and for separate legend
 	callbacks.

	* src/libguppiplot/guppi-plot.defs: Added binding for
 	guppi_element_view_set_event_blocking function.

	* src/libguppiplot/guppi-element-canvas-item.c (event_dispatcher):
 	Hacked event dispatcher to abort if the block_event flag is set on
 	the canvas item's associated view object.

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_set_event_blocking): Added event blocking
 	flag.

	* src/libguppidata/guppi-seq-object-core-impl.c
 	(guppi_seq_object_core_impl_finalize): Fixed ordering of finalize
 	function, stomping memory corruption bug.  There are more of these
 	lurking out there. :-/

	* plug-ins/plot/legend/guppi-legend-state.c
 	(guppi_legend_state_init): Made our default edge thickness
 	narrower.

	* plug-ins/plot/legend/guppi-legend-print.c (print): 
	* plug-ins/plot/legend/guppi-legend-item.c (render): 
	Fixed bug in calculation of box_y_step when we only have one item
	in our legend.

	* plug-ins/plot/barchart: Finished core bar chart functionality.

	* plug-ins/plot/axis/guppi-axis-state.c
 	(guppi_axis_state_maximum_span): Commented out the rounding up of
 	the the natural axis size, as it produces an annoying "flutter" in
 	bar charts.  Since it is useful in scatter plots, it should become
 	an optional parameter.

Mon Jul  3 12:55:00 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/barchart/guppi-barchart-state.c: One of the great
 	truisms of coding is that if your code is too complex, you
 	probably have failed to understand the question at hand.  That was
 	what happened to me during my first pass at bar charts; I tried to
 	operate a bit too generally, and the extra functionality that I
 	tried to provide (which was of at best dubious value) was creating
 	all sorts of code complexity --- not to mention cases where it was
 	difficult to see what the default behavior should be, and equally
 	difficult to properly delegate that decision making to
 	user-supplied code.  This is a bad place to be, so a quick
 	retooling of my existing code has led to great code
 	simplification.  But shed no tears for the lost functionality; if
 	anyone should possibly still want do to things that way, you still
 	can by properly manipulating your data beforehand and placing N
 	barchart plug-ins in a row.

	* plug-ins/plot/axis/guppi-axis-print.c (print): Tweaked usage of
 	guppi_axis_state_tick_properties().

	* plug-ins/plot/axis/guppi-axis-item.c (prepare_labels): Tweaked
 	usage of guppi_axis_state_tick_properties().
	(render): Tweaked usage of guppi_axis_state_tick_properties().

	* plug-ins/plot/axis/guppi-axis-state.c
 	(guppi_axis_state_tick_properties): Made the label offset a
 	calculated property.  (It is nice to be able to stick a little
 	extra space in for "tickless" axis markers.)
	(guppi_axis_state_label_shrink_to_fit_factor): Tweaked usage of
 	guppi_axis_state_tick_properties().
	(guppi_axis_state_maximum_span): Tweaked usage of
 	guppi_axis_state_tick_properties().

2000-07-03  Michael Meeks  <michael@helixcode.com>

	* src/libguppibonobo/guppi-embeddable.[ch]: Implement.

2000-06-30  Michael Meeks  <michael@helixcode.com>

	* src/guppi/corba_guppi.c (guppi_corba_init): add alternative init
	for oaf.

2000-06-28  Michael Meeks  <michael@helixcode.com>

	* src/guppi/guppi.c (main): add oaf options.

	* configure.in: Create lots of mess making the checks for Bonobo
	more stringent, and rolling an oaf check in too.

	* src/guppi/guppi.c (real_main): re-enable bonobo init.

	* src/libguppibonobo/guppi-bonobo.c: Fixed up and slightly
	less hobbled.

	* src/libguppibonobo/guppi-bonobo.h: update.

	* src/libguppibonobo/guppi.oafinfo: create.

	* src/libguppibonobo/Makefile.am: Add oaf install info.

2000-06-28  Michael Meeks  <michael@helixcode.com>

	* src/libguppiplot/guppi-plot-window.c (do_print_cb): Add
	preview.

Sun Jul  2 21:19:41 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/barchart: Lots of hacking... it is starting to do
 	things now.  Nice things, IMHO.

	* plug-ins/plot/axis/guppi-axis-state.c
	(guppi_axis_state_maximum_span): Fixed max size calculation to
 	take rotation into account.

	* plug-ins/plot/axis/guppi-axis-view.c: Made our natural
 	height/width functions work according to our new scheme.
  	Connected signals so that our height/width get recalculated every
 	time our associated axis markers change; this allows the axis to
 	grow/shrink to accomodate changing marker sizes.

	* plug-ins/plot/boxplot/guppi-boxplot-view.c: Updated natural
 	height/width functions.  If we don't have any data connected, we
 	set our height/width to zero, which is just a bit nicer.

	* plug-ins/plot/legend/guppi-legend-view.c: Fixed natural
 	height/width functions to conform to our new scheme.

	* src/libguppiplot/guppi-plot.c (guppi_plot_schedule_layout): Add
 	a function to set up an idle function with a call to
 	guppi_plot_calc_layout().

	* src/libguppiplot/guppi-plot-canvas.c
 	(guppi_plot_canvas_add_item): When we add an item to our canvas,
 	listen for it's geometry's "changed_position" signal and, when
 	triggered, reposition it on the canvas accordingly.  By doing
 	this, we don't have to explicitly call position_item() in response
 	to layout changes --- only for the scale changes that we are
 	generating ourselves.

	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_set_bbox_c): Only call
 	gnome_canvas_update_bbox() (and hence generate redraw requests,
 	etc.) if our bounding box actually changed.

	* src/libguppiplot/guppi-layout.c (register_geom): When we
 	register a geometry object, listen for its CHANGED_SIZE signal ---
 	and if it changes size, recalc our entire layout.
	(build_vec): Replace direct access to GuppiGeometry innards by
 	calls to guppi_geometry_natural_width() and
 	guppi_geometry_natural_height().
	(guppi_layout_recalc): Added function to re-calculate the layout
 	using the same bounds as the previous call to guppi_layout_calc()...
	(guppi_layout_calc): ...so we need to save a copy of the bounds
	that we pass into guppi_layout_calc() for possible later use
	by guppi_layout_recalc().

	* src/libguppiplot/guppi-element-view.c
	Added lots of paranoid checking of function args.
 	(guppi_element_view_changed_size): Make
 	guppi_element_view_changed_size() call
 	guppi_geometry_calc_natural_size().  The emission of the
 	CHANGED_SIZE signal is blocked for now; I should probably remove
 	the GuppiElementView CHANGED_SIZE signal, because the
 	GuppiGeometry encodes the size info and it is it's rightful place
 	to throw around these signals.

	* src/libguppiplot/guppi-geometry.c: Retooled how natural heights
 	and widths are handled, including rationalizing the callback
 	signatures.  guppi_geometry_calc_natural_size() now tries to
 	calculate the natural w/h, and emits a CHANGED_SIZE signal if the
 	values it comes up with are different than before.  Natural sizes
 	are cached so that multiple calls to
 	guppi_geometry_natural_width() and guppi_geometry_natural_height()
 	only call guppi_geometry_calc_natural_size() the first time.
	
	
Fri Jun 30 00:07:15 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/axis/guppi-axis-state.c
 	(guppi_axis_state_tick_properties): Added support for
 	GUPPI_TICK_NONE type.

	* plug-ins/plot/frame/guppi-frame-item.c (render): Added support
 	for GUPPI_TICK_NONE type.

	* src/libguppiplot/guppi-axis-markers.h: Added a new tick type:
 	GUPPI_TICK_NONE, for labels w/o associated ticks.

	* plug-ins/plot/barchart/guppi-barchart-view.c (update_markers):
 	Show axis markers as percentages when rendering stacked,
 	normalized bars.

	* src/libguppiplot/guppi-axis-markers.c
 	(guppi_axis_markers_populate_scalar): Added a style flag and
 	support for displaying scalars as percentages.

	* src/guppi/corba_guppi.c (guppi_corba_shutdown): 
	* src/libguppiuseful/guppi-exit.c (do_shutdown):
	(guppi_exit): Added verbosity check to console output.

	* src/guppi/guppi-app.c (guppi_app_setup_menus): Added a menu
 	entry for the bar chart demo.
	(hacked_bar_cb): Added this callback for the bar chart demo..

	* plug-ins/plot/barchart: More bar chart hacking.

	* src/libguppiplot/guppi-element-view.c (do_x_markers): Don't try
 	to update our markers if our view doesn't have an associated state
 	object yet.
	(do_y_markers): Ditto.

	* src/libguppiplot/guppi-layout.c
 	(guppi_layout_vertically_adjacent): Another coordinate system fix.

	* src/libguppiplot/guppi-plot-canvas.c (guppi_plot_canvas_c2pt):
 	Put in coordinate system reversal.
	(guppi_plot_canvas_c2pt): Put in coordinate system reversal.

	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_set_bbox_c): Rearrange the coordinates
 	in the canonical order, if the necessary.

	* src/libguppiplot/guppi-plot.c (guppi_plot_print): Removed
 	coordinate flip.  Now that the pt coordinate system has been made
 	consistent with postscript's conventions, it is no longer
 	necessary.

Thu Jun 29 11:10:44 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-layout.c (guppi_layout_natural_height):
 	Fixed height calculation in relation to our correcting of the
 	handedness of the pt coordinate system.
	(guppi_layout_flush_top): More coordinate system changes.
	(guppi_layout_flush_bottom): More coordinate system changes.

	* src/libguppiplot/guppi-geometry.h (guppi_geometry_height):
 	Reversed sign to accomodate our (corrected) coordinate system.

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_vp2pt): Fixed stupid typo.

	* src/libguppiplot/guppi-plot-canvas.c
 	(guppi_plot_canvas_vertical_fit): Test for division by zero.
	(guppi_plot_canvas_horizontal_fit): Test for division by zero.
	(guppi_plot_canvas_pt2c): Test for division by zero.
	(guppi_plot_canvas_c2pt): Test for division by zero.

	* src/libguppiplot/guppi-element-canvas-item.h:
	* src/libguppiplot/guppi-element-canvas-item.c: Cleaned up all of
	the coordinate transforms, added new convenience functions.
	Simplified our use of macros.

	* src/libguppiplot/guppi-element-view.h: 
	* src/libguppiplot/guppi-element-view.c: Rationalized coordinate
	transforms, adding code for dealing with the pt coor system.
	(This is our device-independent coor system in postscript points.)

	* src/libguppiplot/guppi-geometry.h: Added conv and unconv macros.

	* plug-ins/plot/barchart: Preliminary work on getting the bar
 	chart to actually do something.  I can now handle the rendering
 	for any 2-d bar chart that Excel can do... or at least the crappy
 	old version of Excel that I have handy.  Data access is still
 	canned, and guile bindings, accessors and printing are not
 	provided --- but that really is the easy part. :-)
 
Wed Jun 28 16:43:47 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq-scalar-core-impl.c
 	(guppi_seq_scalar_core_impl_finalize): Re-ordered chained call to
 	parent.  Added free()ing of the sorted copy of the data... a nice
 	little memory leak.
	(v_seq_scalar_range_query): Added adjusted by index basis in the
 	case of data w/o a sorted copy.

	* src/libguppidataui/guppi-data-picker.c
 	(guppi_data_picker_rebuild): Fixed off-by-one error that caused
 	data pickers to change values when new data was loaded.

	* src/libguppidata/guppi-seq-boolean-core-impl.c
 	(v_seq_boolean_set_many): Added adjustment by index basis and a
 	check that our index value is in range.

	* src/libguppidata/guppi-seq-scalar-core-impl.c
 	(v_seq_scalar_range_query): Fixed a reversed inequality that was
 	causing us to do extra work when the entire data set lay inside of
 	our range query interval.

	* plug-ins/plot/pie/guppi-pie-print.c (print): Fixed to use round
 	joins.  (Problem pointed out by Bill Gribble.)

2000-06-28  Michael Meeks  <michael@helixcode.com>

	* src/libguppiplot/guppi-plot-window.c (do_print_cb): Add
	preview.
	
Wed Jun 28 13:10:20 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-element-print.c
 	(guppi_element_print_print): Oops... I forgot to remove some
 	debugging code that framed each element when printing.

	* src/libguppiplot/guppi-plot-window.c (edit_prop_cb): Removed
 	hard-wired size for properties window.

	* src/libguppiuseful/guppi-properties.c (select_child_cb): Fixed
 	resizing problem with properties widget (at least partially).

Tue Jun 27 00:40:16 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-guile.c: Misc fixes for guile 1.3.0
	compatibility.

	* build-tools/gen-scm.pl: Changed auto-generated code to support
 	guile 1.3.x, x<4.

	* src/guppi/guppi.c (main): Moved the hard-wired monitor
 	parameters into my .guppirc file, where they belong.

	* src/python-server/Makefile.am: Linking is screwed up with old
 	versions of guile, due to the qthreads mess.  (What does guile
 	have to do with python-server, you ask?  Good question.)

	* src/guppi/corba_guppi.c (scm_strport_to_string): See previous
 	entry.

	* plug-ins/plot/slinreg/guppi-slinreg-state.c (properties_tree):
 	Moved existing info widget into a properties tree, along with a
 	placeholder for a configuration screen.

	* plug-ins/plot/scatter/guppi-scatter-state.c (properties_tree):
 	Tied existing config widget into a properties tree node.  This
 	widget is too big: it should be split up into multiple "screens".
  	For now, though, I'm happy to just have something working...

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_properties_tree): Changed to automatically
 	construct an element-level top node with the view and state nodes
 	as children underneath.

	* src/libguppiplot/guppi-plot-window.c (edit_prop_cb): Changed so
 	that there is always at most one properties widget per window:
 	re-selecting the edit properties menu item just raises any
 	existing window.

	* src/libguppiuseful/guppi-properties.c (add_page): Allow the
	widget constructor function to be NULL, which causes a placeholder
	label widget to be created.

Mon Jun 26 08:29:41 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-data-tree.c: Added #include to silence
 	compiler warning.

	* src/libguppiplot/guppi-plot-window.c: Added an edit menu with a
 	"Properties" option that creates and shows the plot canvas'
 	properties dialog.

	* src/libguppiplot/guppi-plot-canvas.c
 	(guppi_plot_canvas_properties_dialog): Get the property tree of
 	the canvas' plot object and use it to build a dialog.

	* src/libguppiplot/guppi-plot.c (guppi_plot_properties_tree):
 	Added; builds up the property tree for all the plot's component
 	views.

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_properties_tree): Call virtual function for
 	creating the associated GuppiPropertiesNode for both the view and
 	the associated state.  If both return non-NULL, add the view's
 	node as a child of the state's node.

	* src/libguppiplot/guppi-element-state.c
 	(guppi_element_state_properties_tree): Call virtual function for
 	creating the associated GuppiPropertiesNode.

	* src/libguppiuseful/guppi-properties.c
 	(guppi_properties_construct): Show the page associated to the root
 	tree node upon creation.

	* src/libguppiuseful/guppi-python.c (guppi_python_init): Removed
 	C++-style comment which was confusing one of the gettext-related
 	programs.

	* plug-ins/plot/scatter/guppi-scatter-item.c
 	(guppi_scatter_item_finalize): Re-ordered destructor to avoid
 	memory corruption.

	* src/libguppiuseful/guppi-useful.h: Added guppi-properties.h.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c (update): When
 	zooming in extremely close, the off-screen coordinates of the
 	paths defining the box could get quite large, and this sometimes
 	annoyed libart.  To work around this, I've clamped the path
 	coordinates to values just off the edge of the screen.  (Part II
 	of the fix for Bug#15054.)

	* plug-ins/plot/slinreg/guppi-slinreg-item.c (update): Fixed bug
 	that caused the regression line's label to get "stuck" on the
 	screen when the line itself was no longer visible.

	* src/libguppidata/guppi-seq-scalar-core-impl.c
 	(v_seq_scalar_range_query): I must have been on crack when I first
 	coded the simple bisection search here... I totally got it
 	wrong. :-/  (Part I of the fix for Bug#15054.)

	* plug-ins/plot/legend/guppi-legend-item.c: Suppressed warning by
	adding forgotten #include.

	* src/libguppiuseful/guppi-guile.c: Removed some crufty looking
 	stuff from the SCWM-copied chunk of code that seemed to be itself
 	copied out of the fluid.h header of an old version of guile.
  	Replaced it by #including fluid.h.  (That stuff must not have been
	exported by guile way back when...)

	* build-tools/gen-scm.pl: Adjusted the auto-generated code to be
 	both guile 1.3.x and 1.4.x compatible.  (I'm particularly happy
 	today that my guile bindings are auto-generated...)

	* plug-ins/plot/pie/guppi-pie-view.c
 	(guppi_pie_view_effective_radius): Added support for
 	radius_maximize parameter.

	* src/libguppitank/guppi-object-pie.h: 
	* src/libguppitank/guppi-object-pie.c: Added support for
	legends, custom slice colors, slice/box click callbacks, etc.

	* plug-ins/plot/legend/guppi-legend-state.c: Added get_arg/set_arg
 	access to the "hacky box click".

	* plug-ins/plot/legend/guppi-legend-view.c (make_canvas_item):
 	When appropriate, the legend canvas item we construct has the
 	"hacky box click" callback connected.

	* plug-ins/plot/pie/guppi-pie-state.c: Added get_arg/set_arg access
	to the "hacky slice click".  Added radius_maximize parameter.

	* plug-ins/plot/pie/guppi-pie-view.c (make_canvas_item): When
 	appropriate, the pie canvas item we construct has the "hacky slice
 	click" callback connected.

	* src/libguppiplot/guppi-shared-hash.h: Added macro key for
	shared labels.

Sun Jun 25 13:32:06 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_init): Construct the local toolkit.
	(guppi_element_canvas_item_finalize): Deallocate the local
 	toolkit.

	* plug-ins/plot/pie/guppi-pie-view.c (make_canvas_item): Added
 	support for hacked slice click tool.

	* plug-ins/plot/pie/guppi-pie-item.c (update): Updaed for new font
 	rasterize parameters.

	* plug-ins/plot/axis/guppi-axis-item.c (prepare_labels): Updated
 	for new font rasterizer parameters.
	
	* plug-ins/plot/text/guppi-text-item.c (set_template): 
	Updated for new alpha template behavior.

	* src/libguppiplot/guppi-raster-text.c
 	(guppi_raster_text_rasterize_full): Changed font size parameter to
 	a scale factor, as per our changes in the alpha template.

	* src/libguppiplot/guppi-alpha-template.c
 	(guppi_alpha_template_text_general): Removed last remnant of my
 	ass-backwards way of separating fonts and font sizes.  The size
 	parameter is the alpha template text rasterizer is now just a
 	general scale factor.

	* src/libguppiplot/guppi-layout.c (guppi_layout_calc): Clamp
 	calculated coordinate values, to keep objects from "falling off
 	the page."

	* src/libguppiuseful/guppi-properties.c: Added code for "properties
 	edit" widget w/ a tree menu to control which page to look at.

	* src/guppi/guppi.c (real_main): Hard-wired in a
 	guppi_set_monitor_size() call for my specific monitor. :-/ This
	information needs to get moved to a conf file.
	
	* plug-ins/plot/legend: Preliminary implementation of legend
 	objects.  The basic rendering code is done, but much of the state
 	is still hard-wired.

	* plug-ins/plot/scatter/guppi-scatter-item.c (update): Simplified
 	code by using the guppi_seq_grow_to_include_range() function to
 	alloc our local visibility masks.

	* src/libguppidata/guppi-seq-boolean-core-impl.c
 	(v_seq_grow_to_include): Added grow_to_incude vfunction.

	* src/libguppidata/guppi-seq.c: Added the various grow_to_include
 	functions.

	* src/libguppidata: Added code for a GuppiSeqObject type.

	* src/libguppidata/guppi-seq-scalar.c
 	(guppi_seq_scalar_insert_many): Changed to use new insert_many
 	semantics.
	(guppi_seq_scalar_insert_repeating): Added.
	(guppi_seq_scalar_prepend_many): Added.
	(guppi_seq_scalar_prepend_repeating): Added.
	(guppi_seq_scalar_append_many): Added.
	(guppi_seq_scalar_append_repeating): Added.

	* src/libguppidata/guppi-seq-scalar-impl.c
 	* src/libguppidata/guppi-seq-scalar-core-impl.c
 	(v_seq_scalar_insert_many): Changed insert_many semantics to take
 	a pointer and a stride, rather than just an array of doubles.
  	This is somewhat more flexible.  Also added grow_to_include
 	vfunction.

Fri Jun 23 17:43:53 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/legend: Added most of the standard boilerplate
	code.  It still doesn't do anything.
	
	* plug-ins/plot/*/init.c (guppi_plug_in): Check for guile and
 	python with the guppi_supports_*() commands, and only init the
 	bindings for the languages if the scripting languages are active.

	* src/libguppiplot/guppi-layout.h:
	* src/libguppiplot/guppi-layout.c:
	* src/libguppiplot/guppi-plot.h:
 	* src/libguppiplot/guppi-plot.c:
	* src/libguppiplot/guppi-plot.defs: Added
 	guppi_layout_width_equals_height() and the associated
 	guppi_plot_layout_width_equals_height().

	* src/guppi/guppi.c (real_main): Changed our --script option to
 	call guppi_execute_script(filename).  Thus guppi will figure out
 	what language the script is in and do the right thing.

	* src/libguppiuseful/guppi-scripting.h: 
	* src/libguppiuseful/guppi-scripting.c: Added a unified set of
	operations for dealing with scripting.

	* src/libguppidata/guppi-seq-scalar-core-impl.c
 	(v_seq_scalar_range_query): Optimized for the case when the range
 	of our data is entirely within the range of our query.

	* plug-ins/plot/scatter/guppi-scatter-item.c (render): Added raw
 	array access for our GuppiSeqScalar items.  Tuned our usage of
 	visibility bit masks.  This all should (theoretically) speed
 	things up a bit, but our main bottleneck remains moving RGB data
	between the X client and the server.
	

Thu Jun 22 00:46:30 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/boxplot/guppi-boxplot-print.c (print): Do nothing
 	if we aren't in a ready state.  (This was causing stray marks to
 	appear when printing a "blank" plot.)

	* plug-ins/plot/axis/guppi-axis-print.c (print): As coded, it
 	wouldn't show labels if the tick was not shown.  This was wrong,
 	as is now fixed.  

	* plug-ins/plot/axis/guppi-axis-item.c (render): Replaced big
 	switch statement with call to guppi_axis_state_tick_properties().

	* plug-ins/plot/axis/guppi-axis-state.c
 	(guppi_axis_state_tick_properties): Moved the resolution of tick
 	properties here (from the canvas item and print object), thus
 	eliminating some ugly code duplication.

	* plug-ins/plot/axis/guppi-axis-state.c (guppi_axis_state_get_arg,
 	guppi_axis_state_set_arg, guppi_axis_state_class_init,
 	guppi_axis_state_init): Added "shrink_labels_to_fit" and "label
 	offset" variables.
		
	* plug-ins/plot/pie/guppi-pie-state.c (guppi_pie_state_get_arg,
 	guppi_pie_state_set_arg): Added arg processing for our radius_lock
 	variable.

	* plug-ins/plot/pie/guppi-pie-item.c (guppi_pie_item_in_slice):
 	Fixed idiotic typo.

Wed Jun 21 14:23:31 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (update, render):
 	Hacked on how the range queries are done, trying to goose the
 	performance up a bit.  (Cesar Talon observed that Guppi seemed to
 	have gotten a bit slower in its screen updates since I retooled
 	the internals.)

	* src/libguppiplot/guppi-geometry.h (guppi_geometry_width,
 	guppi_geometry_height): Added semi-useful macros.

	* plug-ins/plot/pie/guppi-pie-tool.c: Add "change radius" tool,
 	borrowing code from explode_all().

	* plug-ins/plot/pie/guppi-pie-item.c (update): Use the new
 	guppi_pie_view_effective_radius() function to determine the radius
 	of our rendered slices.
	(guppi_pie_item_class_init): Connect up our new "change radius
 	tool" to mouse-3.
	(guppi_pie_item_in_slice): Use the effective_radius() function to
 	determine which slice we are in.

	* plug-ins/plot/pie/guppi-pie-view.c (guppi_pie_view_max_radius):
 	Calculates the maximum possible radius for this view of the pie
 	chart that doesn't result in us spilling outside of the bounds of
 	our plot.
	(guppi_pie_view_effective_radius): Calculates what radius to
 	render the pie chart with, considering all factors.

	* plug-ins/plot/pie/guppi-pie-state.c (guppi_pie_state_init): Made
 	the new radius_lock value default to TRUE.
	(guppi_pie_state_set_radius_lock): Added an accessor for the
 	radius lock variable.

	* src/libguppidata/guppi-seq-scalar-core-impl.c: Added a cached
 	sorted index of the data for optimized range queries.  The sorted
 	index is created on the first range query, but then a waiting
 	period is imposed --- after it is invalidated, N range queries
 	will be made using the less efficient O(N) algorithm before the
 	new index is generated.  This way we won't thrash creating and
 	destroying sorted indices when doing some like (for example)
 	dragging a point around a scatter plot.  I think that this is
 	rather clever.  It remains to be seen how it works out in
 	practice.
	(v_seq_scalar_range_query): Added a range query function that will
 	use the sorted index of the data if available, and otherwise just
 	scans the whole array.

	* src/libguppidata/guppi-seq-boolean-core-impl.c
 	(v_seq_boolean_set_many): Added a "set many" function for the core
 	bool sequence implementation.

	* src/libguppidata/guppi-seq-boolean-impl.h: Added virtual
	function for set_many to GuppiSeqBooleanImpl.

	* src/libguppidata/guppi-seq-boolean.h
	* src/libguppidata/guppi-seq-boolean.c
 	(guppi_seq_boolean_set_many): Added front-end for "set many"
 	routine, which allows N bits to be set w/ (if the implementation
 	supports it) only one virtual function call.

	* src/libguppidata/guppi-data-importer-plug-in.c: Added #include
 	<gnome.h> to silence compiler warning.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c (update): Libart has
 	moved its annoying "colinear" spew from stdout to stderr (which is
 	progress, I guess)... so now I redirect stderr to /dev/null rather
 	than stdout when stroking the boxplot frame.

Mon Jun 19 21:01:48 2000  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi-app.c (guppi_app_setup_menus): Fixed moronic typo.

	* src/libguppitank/guppi-object-pie.c (add_arg): Changed args
	to be write-only. Facism reigns in libguppitank.

	* src/libguppimath/guppi-equation-parser.y: 
	* src/libguppimath/guppi-equation-lexer.ll: #included some
	standard headers to get rid of scary compiler warnings...

	* src/guppi/pie-demo.scm (pie-demo): Adjusted size parameters.

	* src/guppi/guppi-app.c (guppi_app_setup_menus): Added menu item for
	canned pie chart demo.

	* src/libguppitank/guppi-object-pie.c: A simple abstraction layer
 	for building pie charts.  It needs more features, as does the pie
 	chart plug-in.

	* src/libguppitank/guppi-object.c (guppi_object_build_widget): The
 	signal is called "size_allocate", not "size_alloc".  Duh.
	(guppi_object_new): Fix conditional: things go wrong if
 	klass->build == NULL, not != NULL.  Add horizontal & vertical size
 	as arguments to the build virtual functions.
  	guppi_plot_set_size() has to be called *last*, after the plot has
 	been built up, so that it can do the layout.  I was calling it
 	before the GuppiPlot was fully constructed, with the expected bad
 	results.

	* src/libguppitank/guppi-tank-init.c (guppi_tank_init): Add
 	everything we need to get guppi up and running.  Guile stuff is
 	not activated.

	* src/libguppiuseful/guppi-useful.c (guppi_useful_init,
 	guppi_useful_init_without_guile): Add a function that will
	initialize the library without doing any guile initialization.

	* src/libguppiplot/guppi-plot-init.c (guppi_plot_init): 
	* src/libguppiplot/guppi-stat-init.c (guppi_stat_init): 
	* src/libguppidata/guppi-data-init.c (guppi_data_init): Check that
 	guile is active before initializing bindings.	

	* plug-ins/plot/pie/guppi-pie-state.c (guppi_pie_state_get_arg,
 	guppi_pie_state_set_arg, guppi_pie_state_class_init): Added access
 	to the carried state via GtkObject args.

	* plug-ins/plot/*/init.c (guppi_plug_in): Check to see if
	guppi_guile_is_active() returns true before initializing our 
	guile bindings.  This is a good thing to do if, for example,
	you are embedding guppi in a program that does not embed guile,
	or if you don't want to export guppi's huge guile interface.

Mon Jun 19 21:11:10 2000  Andrew Chatham <andrew.chatham@duke.edu>
	
	* plugins/plot/*/*.defs: Removed "(plugin 1)" options and added
 	objects to scatter.defs to allow class identification in Python.

	* python-modules/Guppi/compilefile.py: Will now precompile
 	__init__.py files. 

	* python-modules/Guppi/plot/[end|start].py: To make up for
 	removing "(plugin 1)" from defs files.

	* src/libguppiuseful/guppi-python.c (py_compass_check)
 	(guppi_python_type_name): Removed some g_free statements which
 	were unneccessary and causing segfaults. Also removed
 	commented-out (PyGuppiFlag_get_value) and
 	(guppi_python_register_classes)

	* src/guppi/hacked-scatter-demo.py: Removed duplicate lines and
 	typo which caused segfault.

	* build-tools/generate.py: Stores return value from C function in
 	temporary variable. Necessary so we can free argv arguments before
 	returning [freeing not yet implemented].
	
Sun Jun 18 00:14:42 2000  Jon Trowbridge  <trow@gnu.org>

	* Applied a big patch from Andrew Chatham that provides
 	auto-generated Python bindings.  There are still a few kinks to be
 	worked out, but otherwise very cool.

	* src/libguppiplot/guppi-alpha-template.c (my_art_drect_bpath):
 	Copied definition from gnome-print, since it has become static in
 	that lib.  This is all hackiness caused by the lack of an exposed
	API that can be used to rasterize nice fonts...

	* src/libguppiplot/guppi-element-canvas-item.c
 	(guppi_element_canvas_item_class_init): Fixed default zoom in/out
 	mouse bindings to match the way they were in the 0.34.x releases.
	(Somewhere along the way I reversed them by mistake...)
	
	* plug-ins/plot/scatter/guppi-scatter-tools.c
 	(find_point_to_drag): Save point to be dragged in an int_arg, not
 	a ptr_arg.  Duh.

	* plug-ins/plot/pie/guppi-pie-tool.c
 	(guppi_pie_tool_new_slice_callback): Added tool that executes a
 	callback (with the slice # as an arg) upon clicking.

	* src/libguppiplot/guppi-plot-tool.h: Add more space to stuff state
	in GuppiPlotTool.

	* plug-ins/plot/scatter/guppi-scatter-style-view.c
 	(variable_mixed_lookup): Added a template cache for mixed size
 	gradients (i.e. for variable size1 and size2 systems).  The way
 	this is done is a little hacky and strange, but it works so I'm
 	not complaining.  In any case, everything ugly is hidden behind
 	the interface, so I could clean it up later without hurting
 	anything else.

	* plug-ins/plot/pie/guppi-pie.defs: Added bindings for label
 	stuff.

	* plug-ins/plot/pie/guppi-pie-item.c (update): Added code to
	rasterize, cache, and render percentage labels.

	* plug-ins/plot/pie/guppi-pie-print.c (print): Added code to
	print percentage labels.

	* plug-ins/plot/pie/guppi-pie-state.c: Added state elements
	corresponding to percentage labels.

	* src/libguppiplot/guppi-color-gradient.c: Added the fairly hacky
 	guppi_color_gradient_set_intensity() &
 	guppi_color_gradient_set_alpha() functions, to simplify UI stuff.
  	All of this color gradient stuff is going to have to be redesigned
 	eventually, as it is already sort of crufty.

	* plug-ins/plot/scatter/guppi-scatter-style.c (connect_signals):
 	Connected the alpha & intensity spinners to the UI.  (I'd
 	forgotten to do so this morning...)

Sat Jun 17 14:30:50 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-element-print.c
 	(guppi_element_print_get_bbox_vp): Added parallel to the
 	GuppiElementCanvasItem routine.

	* plug-ins/plot/slinreg/guppi-slinreg-item.c (update): Removed old
	center-of-segment calc (which was wrong anyway) and replaced it will
	a call to the new common routine.

	* plug-ins/plot/slinreg/guppi-slinreg-common.c
 	(guppi_slinreg_segment_endpoints): Moved the "center of visible
 	line segment" calculation into a common file to be shared by both
 	the canvas item and the printing code.

	* plug-ins/plot/slinreg/guppi-slinreg-print.c: Implemented
 	printing for simple linear regression objects.

	* src/libguppiplot/guppi-shared.c (set_traverse_fn): I forgot that
 	this has to be able to deal with being passed either a GtkObject
 	or NULL.  Thus using GTK_OBJECT() wasn't too smart.

	* plug-ins/plot/slinreg/init.c (guppi_plug_in): Re-enabled guile
 	bindings for simple linear regression plug-in.

	* src/guppi/guppi-app.c (hacked_scatter_plot_cb): Removed embedded 
	guile code: now we eval the contents of the file scatter-demo.scm.

	* src/libguppiuseful/guppi-paths.c: Added
 	guppi_find_guile_script() to hunt for system-installed guile code.

	* plug-ins/plot/scatter/guppi-scatter-view.c (view_init,
 	state_changed): Hacked to track the data our scatter state holds,
 	and to change to the preferred view on that axis whenever the x-
 	or y-data changes.  This seems to be the desirable interactive
 	behavior.

	* src/libguppiplot/guppi-element-state.c
 	(guppi_element_state_make_view): Added call to view_init hook
 	after a newly constructed view object has the parent state
 	attached.

	* src/libguppiplot/guppi-element-view.h: Added view_init hook.

	* src/libguppiplot/guppi-style.h: Added style-object specific
	edit widgets.

	* plug-ins/plot/pie/guppi-pie-item.c: Changed to #include
 	libart.h, rather than individual libart headers.

	* plug-ins/plot/scatter/guppi-scatter-style.c: Added custom
	style editor widget.  Added support for cool new color gradients.

	* plug-ins/plot/scatter/guppi-scatter-style-view.c
 	(variable_size1_lookup, variable_size2_lookup): Fixed ref counting
 	glitch.  Hacked to use new color gradients.
	 
	* plug-ins/plot/scatter/guppi-scatter-state.h: Changed semantics
 	for specifying "spread" of a size gradient.

	* src/libguppiplot/guppi-style.h: Added objectified color gradients.


Fri Jun 16 01:50:58 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-item.c (update):
	(render): Changed slack in window queries from a constant to a
 	quantity that estimates the maximum size of any marker.  This
 	keeps larger markers from being partially truncated during
 	redraws.

	* plug-ins/plot/scatter/guppi-scatter-state.c
 	(guppi_scatter_state_init): Connect the scatterplot's state's
 	"changed" signals, so that the plot will refresh on style changes.
  	I forgot to do this previously...

Thu Jun 15 18:56:54 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-layout.c: Added the hbox2, hbox3, vbox2
 	and vbox3 layout commands.  Having these really cuts down on the
	number of layout instructions needed to produce common arrangements
	of plot elements.

	* src/libguppiplot/guppi-plot.c (guppi_plot_add_element): Don't
	add the same GuppiElementView to a GuppiPlot twice.

	* src/libguppiplot/guppi-plot.h: Changed the
 	guppi_plot_layout_*()s from macros to functions with proper
 	paranoid type checking.  These wrapper functions now automatically
 	call guppi_plot_add_element() on all GuppiElementView arguments.

	* src/libguppiplot/guppi-plot.defs: Removed bindings for annoying
 	GuppiLayout GuppiElementView-layout convenience macros.

	* src/libguppiplot/guppi-layout.h: Removed annoying GuppiLayout
 	GuppiElementView-layout convenience macros.

	* src/guppi/guppi.c (main): Fixed the batch-mode start-up sequence
 	to init only the non-graphical parts of Gnome.  Guppi can now
 	truly be used to batch-generate postscript plots without a X
 	server running.

	* src/libguppiplot/guppi-style.c (guppi_style_stock): Replaced a
 	ref to gdk_color_lookup with guppi_str2color_rgba.

	* src/libguppiuseful/guppi-guile.c (scm2color):
	(scm_color_p): Replaced refs to gdk_color_lookup with
 	guppi_str2color_rgba.

	* src/libguppiuseful/guppi-rgb.c (guppi_str2color_rgba): Added an
 	alternative to gdk_color_lookup, which will (try to) work w/o an X
 	server.
	
2000-06-15  Yuri Syrota  <rasta@renome.rovno.ua>

	* configure.in: Added "uk" to ALL_LINGUAS.
	
Thu Jun 15 00:01:25 2000  Jon Trowbridge  <trow@gnu.org>

	* AUTHORS: Added Andrew Chatham, who is working on python
 	bindings, to the list.

	* src/libguppiplot/guppi-plot.defs: The generic language bindings specs
 	just keep coming.

	* src/libguppiplot/guppi-element-canvas-item.c (event_dispatcher):
 	Fixed the radius of the circular cue item to correctly be
 	converted from pts to pixels.

	* src/libguppiplot/guppi-style.c (guppi_style_copy): Added a way
 	to (as the name suggests) copy the state of one style to another.
	(guppi_style_stock): Stock styles now work properly.  Wheee!

	* src/libguppiplot/guppi-shared-hash.h: Added canned symbols for
	shared color and size data.

	* src/libguppiplot/guppi-layout.c (guppi_layout_calc): Removed
 	some debug spew.  Good riddance.

Wed Jun 14 23:32:53 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-marker.c: Added template-generating
 	functions.  Some of our size variables are probably a bit off.
  	(generic_print_circle): I'm annoyed that gnome-print makes us draw
 	our own circles out of line segments.  My previous implementation
 	did this in a not-very-careful way, so I went way overboard in the
 	# of segments per circle I used, resulting in big .ps files and
 	slow printing time (at least on my 7-year-old HP Laserjet).  I've
 	added some logic that tries to do things in a more rational way,
 	calculating the # of segments to use based on keeping the error
 	(the deviation from circle-ness) below a maximum threshold.

	* src/libguppiuseful/guppi-splash.c (guppi_splash_message):
 	Changed to respect the global verbosity level.

	* src/libguppiuseful/guppi-rgb.h: Added macro-ified color
 	interpolation.  Fixed the pixel-painting macros to do the right
 	thing if accidentally handed an alpha channel > 0xff.

	* src/libguppiuseful/guppi-debug.c: Added functions for
 	setting/getting a global verbosity level.

	* src/libguppidata/guppi-seq-boolean-core-impl.c
 	(v_seq_boolean_range_query): Made a bunch of grotty, low-level
 	optimizations to our core range query implementation.  I'm firmly
 	in "shave off a few instructions here and there" territory with
 	these changes.

	* src/guppi/guppi.c (main, real_main): More start-up sequence
 	decrufting.  Added verbosity control, so we don't get all of that
 	spew every time we start up.

	* plug-ins/plot/text/guppi-text-print.c: Removed some unused
	boilerplate code relating to args and destroy signals.

	* plug-ins/plot/pie/guppi-pie-print.c (print): Changed to use
	the slice colors and edge color specified in the state object.o

	* plug-ins/plot/pie/guppi-pie-state.c: Added infrastructure for
	multi-color slices.

	* plug-ins/plot/boxplot/guppi-boxplot-print.c (print): Implemented
 	printing for boxplots.

	* plug-ins/plot/scatter/guppi-scatter-view.c
 	(guppi_scatter_view_class_init): Defined a print type.

	* plug-ins/plot/scatter/guppi-scatter-state.c: Added accessors &
 	modified for style data, color data, size data.

	* plug-ins/plot/scatter/scatter.defs: Added tons of new bindings
 	for scatter styles, etc.

	* plug-ins/plot/scatter/guppi-scatter-style-view.c: Most of the
 	hairy logic that made the old guppi scatter rendering code so ugly
 	has been encapsulate in GuppiScatterStyleView objects now.
  	Basically, we use these for all style-specific cacheing (like
 	storing & reusing alpha template).  This has turned out to be a
 	big de-crufter, and has made new optimizations possible.  For
 	example, doing a cache of N alpha templates associated with size
 	gradients was just too convoluted before, so I never implemented
 	it.  Now it is actually not too bad.

	* plug-ins/plot/scatter/guppi-scatter-style.c: This is basically a
 	total re-write to integrate with our new GuppiStyle notion.
  	
	* plug-ins/plot/scatter/guppi-scatter-item.c
 	(guppi_scatter_item_class_init): Attached some of our scatter
 	tools to mouse buttons.
	(render): Finally implemented new optimized rendering code that
 	allows for multiple styles & brushing.

	* plug-ins/plot/scatter/guppi-scatter-tools.c: Finally ported to
 	our new (well, not so new anymore) framework.

	* plug-ins/plot/linegraph/guppi-linegraph-print.c (print):
 	Implemented printing for line graphs.

	* plug-ins/plot/frame/guppi-frame-view.c
 	(guppi_frame_view_class_init): Defined our print type.

	* plug-ins/plot/frame/guppi-frame-print.c: Implemented a printing
 	class for the frame plug-in.

	* plug-ins/plot/frame/guppi-frame-state.c
 	(guppi_frame_state_get_arg, guppi_frame_state_set_arg,
 	guppi_frame_state_class_init): Added args for all of our frame's
 	internal state.

	* plug-ins/plot/axis/guppi-axis-print.c (print): Fixed label
 	positioning.

Sun Jun 11 00:33:25 2000  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/guppi.c (main, real_main): Cleaned up and rationalized
 	Guppi's start-up sequence.

	* plug-ins/plot/pie/guppi-pie-state.c (soff_insert_cb): Fixed bug
 	in the code that keeps our slice offset sequence in sync with our
 	data sequence.

Sat Jun 10 23:07:46 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-guile.c (guppi_guile_init): Gettextized
 	a few messages.

	* src/libguppiuseful/guppi-useful.c (guppi_useful_init): Added
 	call to guppi_python_init().

	* src/libguppiuseful/guppi-python.c: Framework (still empty) for
	Python bindings.

Fri Jun  9 14:43:23 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/pie/guppi-pie-item.c (update): Changed to use edge
 	width specified in state object.
	(render): Changed to use colors specified in state object.

	* plug-ins/plot/pie/guppi-pie-state.c: Added state variables
	for edge & default colors, edge width.

	* src/libguppiuseful/guppi-plug-in.h (GUPPI_PLUG_IN_MAGIC_NUMBER):
 	I guess I've changed enough stuff to warrent incrementing the
 	plug-in magic number.

	* src/guppi/guppi.c (main, real_main): Hacked to not display
	splash screen when command line args like --help or --usage
	are given.  Based on a patch by Andrew Chatham.


Wed Jun  7 23:49:17 2000  Jon Trowbridge  <trow@gnu.org>

	* src/guppi/hacked-scatter-demo.scm: Added marginal boxplots to
 	the demo.

	* src/libguppiplot/guppi-element-view.c (delayed_changer,
 	guppi_element_view_changed_delayed,
 	guppi_element_view_flush_changes): Fixed small bugs in the
 	freeze/thaw and delayed signal interaction.

	* plug-ins/plot/pie/guppi-pie-state.c: Restructured to allow the
 	(internal) pie slice offset sequence to stay in sync with changes
 	to the data sequence that determines the proportional size of the
 	pie slices.
	
	* src/libguppidata/guppi-seq-scalar.c: 
	* src/libguppidata/guppi-seq-boolean.c: Added support for the new
	fine-grained GuppiSeq signals.

	* src/libguppidata/guppi-seq.c: Added fine-grained "changed"
 	signals for sequences.

Mon Jun  5 08:45:16 2000  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-style.c
 	(guppi_scatter_style_paint): Changed to look for the visibility
 	mask in the canvas item, not in the view.

	* plug-ins/plot/scatter/guppi-scatter-view.c: Excised the
 	visibility calculations.

	* plug-ins/plot/scatter/guppi-scatter-item.c (update): Moved the
 	calculation of the visibility mask into the update routine, where
 	it belongs.  The visibility calculation in the scatter plot now
 	works again.

	* plug-ins/plot/pie/guppi-pie.defs: Added bindings for the
	slice offset functions.

	* plug-ins/plot/pie/guppi-pie-state.c: Added gadgetry to record/change
	individual slice offsets.  Fine-tuned the semantics of the offset
	functions; I think that the interaction between the base offset and
	the individual slice offsets is more intuitive now.

	* plug-ins/plot/pie/guppi-pie-tool.c: Added a tool to allow
 	individual slices to be dragged/"exploded".

	* plug-ins/plot/pie/guppi-pie-print.c: Basic printing now works.
  	Wheee!

	* plug-ins/plot/pie/guppi-pie-item.c (guppi_pie_item_in_slice):
 	Fixed a few bugs.  I'm happy I was paying attention in school
 	during trigonometry.

	* src/libguppiplot/guppi-plot.defs: Added bindings for the
	GuppiElementView's preferred view functions.

	* src/libguppiplot/guppi-shared.c: Modified the "changed_held"
	signal to pass the old object as an arg.

	* src/libguppiplot/guppi-plot-window.c: Created distinction between
	linked and unlinked views.  Unlinked views don't really work properly
	right now.

	* src/libguppiplot/guppi-plot-tool.h: Added int_arg1 and int_arg2
 	to GuppiPlotTool -- more places to stuff state information for
 	tools.  Also added a "preferred view" tool.

	* src/libguppiplot/guppi-element-view.c: Added the
 	preferred_x_range and preferred_y_range hooks in
 	GuppiElementViewClass, and the code necessary to have them
 	automagically get called when
 	guppi_element_view_set_preferred_x_view() or
 	guppi_element_view_set_preferred_y_view() are called.
	
	* src/libguppiplot/guppi-view-interval.c
 	(guppi_view_interval_class_init): Added "preferred_range_request"
 	signal, and the guppi_view_interval_request_preferred_range() and
 	guppi_view_interval_grow_to() functions.

	* src/libguppiuseful/guppi-useful.defs: Added bindings for the
	functions from guppi-metrics.

	* src/libguppiuseful/guppi-splash.c: Decreased minimum splash time
	to 10 seconds.

	* src/libguppiuseful/guppi-rgb.c (guppi_paint_wide_line): Added a
	ultra-simple non-anti-aliased 1-pixel-wide line draw as a proxy
	for a better algorithm, which will have to be implemented later.

	* src/libguppiuseful/guppi-rgb.h: Added convenience macros
	UINT_RGBA_R, UINT_RGBA_G, UINT_RGBA_B, UINT_RGBA_A.

	* src/libguppiuseful/guppi-metrics.c (guppi_px2pt): Added average
	of guppi_x_px2pt and guppi_y_px2pt.

Sat Jun  3 18:08:29 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-element-state.c
 	(guppi_element_state_make_view): Added support for a view_type arg
 	rather than requiring a make_view function to be defined.

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_make_print): Fixed typo in warning message.

	* src/libguppidata/guppi-seq.c: 
	* src/libguppidata/guppi-seq-boolean.c: I'd forgotten to have
	some of the modifiers emit the proper changed signals.  Oops.

	* plug-ins/plot/text/guppi-text-state.c: Added forgotten #include to
	silence warning.

Fri Jun  2 22:48:08 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-version.c (guppi_copyright,
 	guppi_developers): Added access to embedded copyright and
 	developer info .

	* src/libguppiuseful/guppi-splash.c (guppi_splash_text): A text
 	"splash" message.

	* src/libguppiuseful/guppi-metrics.c (guppi_pt2px): Average
	of guppi_x_pt2px and guppi_y_pt2px, an approximation that
	is useful in some cases.  After all, everything isn't always
	axis-aligned.

	* src/libguppiuseful/guppi-guile.c: Added macros for SCM<->compass
	operations.

	* src/libguppiuseful/guppi-enums.c (guppi_compass2str): Fixed
	spelling error.

	* src/libguppiplot/guppi-plot.defs: Added a bunch more bindings.

	* src/libguppiplot/guppi-plot.c: Added "changed_layout" signal
	and associated machinery.

	* src/libguppiplot/guppi-plot-window.c: Changed (simplified, I might
	add) to coordinate with the un-fucking of GuppiPlotCanvas.

	* src/libguppiplot/guppi-plot-canvas.c: The way this widget behaved
	in response to resizing was totally fucked.  Ripped all of the
	crap out and put it together properly this time.
	(realize): Made our canvas have a white background.  Much nicer.

	* src/libguppiplot/guppi-layout.c (solve, guppi_layout_calc):
 	Gracefully handle the case of an empty layout.

	* src/libguppiplot/guppi-element-print.c
 	(guppi_element_print_get_bbox): Encapsulation function.
	(guppi_element_print_vp2pt): Fixed typo.
	(guppi_element_print_setrgbacolor): Convenience function.
	(guppi_element_print_setrgbacolor_uint): Convenience function.

	* src/libguppiplot/guppi-axis-markers.c
 	(guppi_axis_markers_populate_scalar): Added some rules, to keep
 	life interesting.

	* src/guppi/guppi.c (main, real_main): Hacks to make --batch
	and --script command line args work properly.

	* src/boilermaker.pl: Fixed placement of #include <config.h> in
	auto-generated code.

Thu Jun  1 08:56:06 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot.defs: Updated and expanded to reflect
	all of the recent changes.

	* src/libguppiplot/guppi-plot-window.c (do_print_cb, print_cb):
 	The print button now does something.  Wheee!

	* src/libguppiplot/guppi-plot.c (guppi_plot_print): Paint our plot
 	to an arbitrary print context.
	(guppi_plot_print_ps_to_file): A convenience function: dump a
 	postscript version of our plot to the given filename.
	(guppi_plot_show_in_window): Another convenience function, mostly
	for gtk/gnome-less language bindings: pop up a window containing
	an (interactive) rendering of our plot.

	* src/libguppiplot/guppi-element-view.c
 	(guppi_element_view_make_print): Added constructor for
 	GuppiElementPrint derivatives.

	* src/libguppiplot/guppi-alpha-template.c
 	(guppi_alpha_template_text_general): Added a pt->px conversion for
 	the size argument.  This is the result of trying to get things
 	looking exactly the same on the screen and on the printed output,
 	and reading a lot of gnome-print source code. :-/

	* src/libguppiuseful/guppi-metrics.c (guppi_pt2px): Added
	"compromise" function for doing an approximate pt->px conversion
	for non-square pixels.

	* src/libguppiplot: An architectural shake-up, in anticipation
	of adding support for printing.

	* src/libguppiuseful/guppi-rgb.c: Created function versions of
 	some of my macros: guppi_paint_horiz(), guppi_paint_vert(),
 	guppi_paint_box(), as well as guppi_paint_soft_box().  I need to
	curb my macro-happy tendencies.

	* src/libguppiuseful/guppi-rgb.h: Fixed copyright info.  Added 
	convenience macros for basic colors.  Added BUF_PTR.  Add
	BUF_INBOUNDS_X and BUF_INBOUNDS_Y.  Added PAINT_DOT, PAINT_HORIZ,
	PAINT_VERT and PAINT_BOX.

	* src/libguppiuseful/guppi-plug-in.h:
	* src/libguppiuseful/guppi-plug-in.c:
 	Made plug-in path handling much more flexible by adding
 	guppi_plug_in_path_clear(), guppi_plug_in_path_set(),
 	guppi_plug_in_path_prepend(), guppi_plug_in_path_append(), and
 	guppi_plug_in_path_reset_to_default().
	(guppi_plug_in_load_all): If guppi fails to load any plug-ins at
	all, print a warning message.
	
	* src/libguppiuseful/guppi-paths.c (guppi_find_pixmap):
	Added function to traverse directories looking for pixmaps.
	(guppi_logo_graphic_path): Changed to use guppi_find_pixmap().
	(guppi_glade_path): Added check of environment variable
	GUPPI_GLADE_PATH when looking for .glade files.

	* src/libguppiuseful/guppi-guile.h: 
	* src/libguppiuseful/guppi-guile.c: Added is_guile_active flag and
 	guppi_guile_is_active() function to test and see if
 	guppi_guile_init() has been called.

	* src/libguppiuseful/guppi-enums.c (guppi_alignment2str,
 	guppi_str2alignment): Added stringifications and
 	unstringifications of GUPPI_CENTER_X, GUPPI_CENTER_Y, GUPPI_WIDTH
 	and GUPPI_HEIGHT.

	* src/libguppiuseful/guppi-enums.h: Made guppi_compass_t
 	"bit-maskable".  Added GUPPI_CENTER_X, GUPPI_CENTER_Y, GUPPI_WIDTH
 	and GUPPI_HEIGHT to guppi_alignment_t, making it suitable for
 	constraint-based alignments.  Convenience macros were updated
 	accordingly.

	* src/libguppiuseful/guppi-debug.c: Made default value of
 	"track_entry_and_exit" TRUE.

	* src: Moved the #include <config.h> directives from the .h
	files and into the .c files where they belong.

Wed May 17 15:08:11 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-file.h: 
	* src/libguppiuseful/guppi-file.c: Changed to allow gzipped files
	to be transparently read.

Fri May  5 17:30:39 2000  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-rgb.h: Added PAINT_BOX macro.

	* src/guppi/guppi.c (real_main): Changed order of initialization
 	so that .rc files would be loaded before loading plug-ins: the
 	lets us change our search paths in the .rc files.

	* src/libguppiuseful/guppi-useful.defs: Added bindings for Guppi
 	plug-in path manipulation routines.

	* src/libguppiuseful/guppi-plug-in.c: Added new functions
 	guppi_plug_in_path_set(), guppi_plug_in_path_prepend(),
 	guppi_plug_in_path_append(),
 	guppi_plug_in_path_reset_to_default().

	* src/libguppiuseful/guppi-plug-in.c (guppi_plug_in_load_all):
 	Changed to iterate over GList of plug-in dirs.

2000-05-03  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-paths.c (guppi_glade_path): Added check
	for GUPPI_GLADE_PATH environment variable.

	* NEWS: Updated for release.

	* plug-ins/plot/boxplot/guppi-boxplot-state.c: Added hooks to deal
	with data setting and to select the horizontal or vertical status
	according to whether x- or y- data was set.

	* plug-ins/plot/slinreg/guppi-slinreg-state.c (set_x_data,
	get_x_data, set_y_data, get_y_data): Fixed typos that should have
	been causing horrible segfaults right and left.  I got lucky, I
	guess...

	* src/libguppidata/guppi-data.defs: Added bindings for accessing
	the quartiles of scalar sequences.

	* src/libguppidata/guppi-seq-scalar-core-impl.c
	(v_seq_scalar_quartiles): Added some (not very sophisticated or
	optimized) code to calculate and cache the data's quartiles.

	* src/libguppidata/guppi-seq-scalar-impl.h: Added a hook for
	quartile calculations to the implementation vtable.

	* src/libguppidata/guppi-seq-scalar.h: 
	* src/libguppidata/guppi-seq-scalar.c: Added an interface for
	getting the quartiles of a set of scalar data.

	* src/libguppiuseful/guppi-useful.h: Added #include <guppi-enums.h>.

	* src/libguppiuseful/guppi-enums.h: 
	* src/libguppiuseful/guppi-enums.c: Added utility routines for
	common enums.

	* plug-ins/plot/boxplot/guppi-boxplot-item.c
	(guppi_boxplot_item_update): Redirect stdout to /dev/null while
	calling art_svp_vpath_stroke(), to hide the damn "colinear!" spew.

	* src/guppi/guppi-app.c (hacked_scatter_plot_cb): Change the
	hard-coded scheme to build a plot with boxplots in the margins.

	* plug-ins/plot/scatter/guppi-scatter-style.c
	(guppi_scatter_style_new_stock): Changed style #1 to default to
	grey rather than black. 
	Make the default size of the circle marker smaller.

2000-04-30  Jon Trowbridge  <trow@gnu.org>

	* src/libguppibonobo: A placeholder for future bonobo support.

	* src/guppi/corba_guppi.c (guppi_corba_init): Changed to allow
	for passing in a popt table.

	* src/guppi/guppi.c (real_main): Added skeletal arg parsing with
	popt.

	* src/libguppiuseful/guppi-exit.c (do_shutdown): Check
	gtk_main_level() before calling gtk_main_quit().

	* src/libguppiplot/guppi-canvas-item.c:
	* src/libguppiplot/guppi-layout-grid.c:
	* src/libguppiplot/guppi-layout-grid-cell.c: I've spent the last
	few days decrufting dynamic layouts, to keep layout ops from
	occuring inside of canvas items' update call --- where they tend
	to trigger new updates, which is problematic.  Changes to an
	item's geometry now "schedules" an allocation; that is, a pending
	geometry allocation is set in an idle function.  Now there is no
	need for a freeze/thaw mechanism, since nothing happens if an
	allocation is already pending.  The new framework should be good
	about not doing extra work or repeating the same calculation
	unnecessarily.  (Getting the details of all of this right was
	rather tricky.  It might still have bugs.)

2000-04-25  Kjartan Maraas  <kmaraas@online.no>

	* configure.in: Added "no" to ALL_LINGUAS.
	
2000-04-25  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/boxplot: Added a boxplot plug-in.

	* src:
	* plug-ins: Lots of small i18n fixes.

	* src/libguppiplot: Lots of fine-tuning of the dynamics of layout
	geometry.

	* plug-ins/plot: 
	* src/libguppiplot/guppi-plot-element: Rationalized state handling
	for plug-ins; wrote a default make_canvas_item rather than requiring
	each plug-in to basically re-provide the same chunk of code.

2000-04-24  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-string.c (guppi_string_is_boolean):
	i18n fix.
	(guppi_string2boolean): i18n fix.

	* src/guppi/guppi-app.c (guppi_app_save_visited_files): Fixed bug
	that was causing us to lose the last element of the visited files
	list (due to misplacing the g_snprintf, putting it after the if
	rather than outside).  Duh.

2000-04-21  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/graphpaper: Added a new plot type for drawing
	ruled lines behind our plot.

	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_render):
	Hacked label rendering code to avoid unsightly clipped labels.
	Removed ruled lines from background and converted the axis item
	into a pure "marginal" axis, rather than something that lay
	superimposed over the plot itself.  Added some primitive,
	hard-wired geometry information.

	* src/libguppiplot/guppi-plot-element.h:
	* src/libguppiplot/guppi-plot-element.c:
	Added the ability to pass args to the state embedded in a
	plot element via the usual GtkArg mechanism.
	Also embedded layout grid positioning information in the element.

	* src/libguppiuseful/guppi-guile.h
	* src/libguppiuseful/guppi-guile.c: Added code for dealing with
	vectors of GtkArgs from guile.

	* src/libguppiplot/guppi-nice-values.c (guppi_nice_values): Moved
	the calculations of "round values" out of the axis plug-in code
	and into this function.

2000-04-20  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq-integer.h
	* src/libguppidata/guppi-seq-integer.c
	* src/libguppidata/guppi-seq-integer-impl.h
	* src/libguppidata/guppi-seq-integer-impl.c
	* src/libguppidata/guppi-seq-integer-core-impl.h
	* src/libguppidata/guppi-seq-integer-core-impl.c: A new data type for
	integer sequences.  This will be the basis of the categorical data
	type.

	* src/libguppidata/guppi-seq-scalar-core-impl.c (v_data_copy):
	Fixed memory leak.

	* src/libguppiuseful/guppi-splash.c (guppi_splash_create): Made
	our splash window look nicer, with the color of the status label
	changed to match the bottom of the blue gradient in the guppi logo
	pixmap.

	* src/libguppidata/guppi-data.defs: Added definitions for
	GuppiSeqInteger functions.

	* configure.in: Made the necessary changes to enable gettext.

2000-04-18  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq-scalar-core-impl.c
	(v_seq_scalar_set): Fixed bug in the code that tries to maintain
	the coherency of the cached min/max.

2000-04-17  Jon Trowbridge  <trow@gnu.org>

	* src/libguppidata/guppi-seq-scalar-core-impl.c
	(v_seq_scalar_range): Don't you love it when you find a simple
	error that, upon correction, immediately provides a nice
	performance boost?  Because I'd left out a "return", I was
	re-calculating the min/max of a scalar sequence every time it was
	asked for, even when the correct value was cached.  Silly me...

	* src/libguppidata/guppi-seq-boolean-core-impl.c
	(guppi_seq_boolean_core_impl_finalize): Fixed memory leak.

	* src/libguppidata/guppi-seq-scalar-core-impl.c
	(guppi_seq_scalar_core_impl_finalize): Fixed memory leak.

	* src/libguppidata/guppi-data.c (guppi_data_impl_class): Added
	this convenience function, which I should have added ages ago.

2000-04-15  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-layout-grid.h
	* src/libguppiplot/guppi-layout-grid.c
	* src/libguppiplot/guppi-layout-grid-allocate.h
	* src/libguppiplot/guppi-layout-grid-allocate.c
	* src/libguppiplot/guppi-layout-grid-cell.h
	* src/libguppiplot/guppi-layout-grid-cell.c: Created the
	infrastructure for handling nice plot layouts.

	* src/libguppiplot/guppi-plot-element.c
	(guppi_plot_element_make_canvas_item): Removed the canvas
	resize/GuppiCanvasItem resize hack.

	* plug-ins/plot/slinreg/guppi-slinreg-item.c
	(guppi_slinreg_item_render): Changed to clip properly via
	guppi_scatter_item_render().

	* plug-ins/plot/scatter/guppi-scatter-item.c
	(guppi_scatter_item_render): Changed to clip properly via
	guppi_scatter_item_render().

	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_render):
	Chaned to clip properly via guppi_canvas_item_clip_buf().

	* src/libguppiplot/guppi-canvas-item.c (guppi_canvas_item_clip_buf): 
	Added function to simplify _render() code by producing a new
	GnomeCanvasBuf that is clipped to the bounds of a given
	GnomeCanvasItem.

2000-04-14  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/slinreg/guppi-slinreg-item.c
	(guppi_slinreg_item_update): Changed to get default font
	information from guppi_default_font() and the related functions.

	* plug-ins/plot/axis/guppi-axis-calc.c
	(optimal_guppi_axis_numerical_labels): Added 4 as a base 10 divisor,
	which will generate numbering on the quarters (i.e. 0, 0.25, 0.50,
	etc.)

	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_render):
	Added some simple text labels.  The Axis item is now behaving
	really like a "gridline" object with labels slapped on... but that
	will have to do until I implement proper geometry management.
	
	* plug-ins/plot/axis/guppi-axis-item.c (guppi_axis_item_update):
	Boosted the label goal to 6, which seems to get better visual
	results.

	* src/libguppiuseful/guppi-rgb.h (PIXEL_RGBA): I hadn't been
	sufficiently paranoid in parenthesizing occurances of the args
	inside of the macro's body.  Weirdness ensured.

2000-04-13  Jon Trowbridge  <trow@gnu.org>

	* Updated e-mail addresses in lots of old headers, touching a
	whole lot of files in the process.

	* src/libguppiuseful/guppi-defaults.h
	* src/libguppiuseful/guppi-defaults.c: Added code to encapsulate
	some default values.  Right now, all are font-related.
	Eventually, this should be done in a proper way using something
	like gconf.

	* src/guppi/guppi-app.c (guppi_app_load_visited_files): Fixed
	glitch that was reversing the order of the file history list every
	time guppi was run.

2000-04-12  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot-element.c
	(guppi_plot_element_make_canvas_item): Made canvas items resize
	along with the canvas.  This is only a pathetic stop-gap hack
	until I can implement proper geometry management.

	* plug-ins/plot/slinreg/guppi-slinreg-item.c
	(guppi_slinreg_item_update): Optimized function to only re-render
	the label text if the text has actually changed.  This is a big
	performance win for operations like panning, in which _update() is
	getting called but the appearance of the text doesn't actually
	change.

	* src/libguppiplot/guppi-alpha-template.c
	(my_gt1_glyph_outline_lookup): Added some GINT_TO_POINTERs to
	silence compiler warnings.

	* src/guppi/file-open.c: Added some cruft, but got something out
	of it.  (1) We now remember what directory we most recently loaded
	a file from, and make that the default for the next file open.
	(2) When we open a file, it gets added to our list of
	recently-opened files.

	* src/libguppidata/guppi-data-importer.h
	* src/libguppidata/guppi-data-importer.c
	(guppi_data_importer_filename): Added this convenience function.

	* src/guppi/guppi.c
	* src/guppi/guppi-app.c: Broke out the code for building up the
	main app window for Guppi, moved it into a class derived from
	GnomeApp.  Added a bunch of code for remembering the most recently
	opened files.

2000-04-11  Jon Trowbridge  <trow@gnu.org>

	* plug-ins/plot/scatter/guppi-scatter-style.c
	(guppi_scatter_style_paint): I screwed up when I fixed a memory
	leak here a few days ago.  The situation is now (hopefully)
	unscrewed.

2000-04-10  Jon Trowbridge  <trow@gnu.org>

	* src/libguppimath/guppi-equation.c (guppi_equation_simplify):
	Adjusted to simplify 0/foo => 0 (as long as foo != 0).

	* plug-ins/plot/slinreg/guppi-slinreg-state.h
	* plug-ins/plot/slinreg/guppi-slinreg-state.c
	* plug-ins/plot/slinreg/guppi-slinreg-item.h
	* plug-ins/plot/slinreg/guppi-slinreg-item.c: Added an optional
	model equation/R^w label on the regression line.

	* src/libguppiplot/guppi-alpha-template.c
	(my_gt1_glyph_outline_lookup & get_gt1_font): Added the caches I'd
	left out in the first pass, thereby plugging some massive memory
	leaks.
	(guppi_alpha_template_text_general): Added support for rotated and
	outlined text.  Anti-aliased fonts rule.

2000-04-08  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-canvas-item.c (renrenegotiate_x_start &
	renegotiate_y_start): We reset the reneg_[xy]_started flag here
	rather than in renegotiate_*_accept.  This fixes a glitch
	involving objects that are passive wrt bounding boxes.

	* src/libguppiplot/guppi-alpha-template.c
	(guppi_alpha_template_text): Added a function to render nice
	anti-aliased text info an alpha template.

	* src/libguppiplot/guppi-alpha-template.h: Added a prototype for
	guppi_alpha_template_text().

	* plug-ins/plot/scatter/guppi-scatter-item.c: Macroified the
	MARGIN value.

	* plug-ins/plot/scatter/guppi-scatter-style.c
	(guppi_scatter_style_paint): Fixed a memory leak caused by adding
	an extra reference to our marker alpha templates.

2000-04-07  Jon Trowbridge  <trow@gnu.org>

	* src/libguppistat/guppi-simple-linreg.c
	(guppi_simple_linreg_recalc): The regression calculation now
	properly deals with the case of data sets with different bounds.

	* src/libguppiplot/guppi-canvas-item.c (renegotiate_x_accept &
	renegotiate_y_accept): A serious typo (a MIN had popped up where a
	MAX was expected) had totally screwed up the entire size
	negotiation process.  Fixed.

	* src/libguppimath: Added a chunk of code for dealing with
	symbolic math.

2000-04-06  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiplot/guppi-plot-element.c (event_dispatcher):
	Removed a superfluous call to gnome_canvas_item_hide().  I don't
	remember what this was supposed to do in the first place...

	* src/libguppiuseful/guppi-paths.c (guppi_glade_path): .glade
	files are now searched for properly, by recursively searching
	through the directory structure.  This replaces a hideous
	hard-wired hack.

	* src/libguppiuseful/guppi-paths.h: Fixed const-ness of the
	string returned by guppi_glade_path().

	* src/libguppiuseful/guppi-useful.defs: Fixed the const-ness
	of the return value for the .defs-inition of guppi_glade_path.

	* src/libguppiuseful/guppi-debug.c: Added cool debugging functions
	stolen from Nautilus: the guppi_stop_in_debugger() function and
	the related functions to make log messages trigger it.

	This is why free software kicks ass; you can really learn so much
	by reading other people's code.

	* src/libguppiuseful/guppi-debug.h: Added prototypes for new
	functions, and the GUPPI_ENTER and GUPPI_EXIT macros.

	* plug-ins/plot/scatter/guppi-scatter-style.c
	(guppi_scatter_style_paint): Added code to properly handle the
	case of x- and y-data sets that are not the same size.  We plot
	the common range, if any.

	* plug-ins: Reorganized the directory structure so that all of the
	plug-ins of a particular type are grouped together in a
	sub-directory.

2000-04-02  Jon Trowbridge  <trow@gnu.org>

	* src/libguppiuseful/guppi-plug-in.c (register_plug_in): Fixed
	g_message()s to print the right version number for plug ins.
	(Thanks to Ji Yu <g.yu@mail.utexas.edu> for catching this.)

	
-----------------------------------

I used to be very bad about keeping a ChangeLog, in that I didn't; instead,
I put the change info in the CVS log entries.  After getting a lot of shit
from people at GUADEC in Mar 2000, about generating too much traffic on the
CVS commit mailing list with my file-by-file commits, I saw the error
in my ways. :-) 

So if you want to know what happened previous to this, look in the
CVS logs.  (It is still early enough in development that most changes
have either been the addition of large chunks of new code or
various bits of architectural thrashing...)