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#ifndef lint
static char SccsId[] = "%W% %G%";
#endif
/* Module: grphctrl.c (Color Graph Control)
* Purpose: Manipulate the color graph
* Subroutine: map_graphbox() returns: void
* Subroutine: display_graphbox() returns: void
* Subroutine: control_cgraph() returns: void
* Xlib calls: XUnmapWindow(), XMapWindow()
* Xlib calls: XSync(), XCheckWindowEvent(), XStoreColors()
* Copyright: 1989 Smithsonian Astrophysical Observatory
* You may do anything you like with this file except remove
* this copyright. The Smithsonian Astrophysical Observatory
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
* Modified: {0} Michael VanHilst initial version 11 June 1989
* {n} <who> -- <does what> -- <when>
*/
#include <stdio.h> /* stderr, NULL, etc. */
#include <X11/Xlib.h> /* X window stuff */
#include <X11/Xutil.h> /* X window manager stuff */
#include "hfiles/constant.h" /* define codes */
#include "hfiles/struct.h" /* declare structure types */
#include "hfiles/extern.h" /* extern main parameter structures */
#include "hfiles/cgraph.h"
#define BUTTONMASK (Button1Mask|Button2Mask|Button3Mask)
#define EVENTMASK (ButtonPressMask|ButtonReleaseMask|ButtonMotionMask)
#include "defs/cgraph.def" /* declare the cgraph struct */
/*
* Subroutine: map_graphbox
* Purpose: Varify size and get everything set when mapping the graphbox
* Xlib calls: XUnmapWindow(), XMapWindow()
*/
void map_graphbox ( )
{
int init;
void create_graphbox(), display_graphbox();
if( graphbox.active ) {
XUnmapWindow(graphbox.display, graphbox.ID);
graphbox.active = 0;
cgraph.inactive = 1;
} else {
if( graphbox.ID == NULL ) {
init = 1;
create_graphbox();
} else
init = 0;
XMapWindow(graphbox.display, graphbox.ID);
display_graphbox(init, 1);
}
}
/*
* Subroutine: display_graphbox
* Purpose: Put up the graphbox when it is mapped or reexposed
*/
void display_graphbox ( init, wait )
int init; /* i: initialize graphbox parameters */
int wait; /* i: wait for result of mapping before getting dimensions */
{
void draw_colorbar(), draw_cgraph(), label_colorbar();
void get_window_dimensions(), adjust_color_graph(), init_color_graph_label();
void init_graph_colorbar(), adjust_graph_colorbar(), label_color_graph();
get_window_dimensions(&graphbox, wait, 1);
graphbox.active = 1;
cgraph.inactive = 0;
if( init ) {
init_color_graph_label();
adjust_color_graph();
init_graph_colorbar();
} else {
adjust_color_graph();
adjust_graph_colorbar();
}
draw_cgraph(1, 0);
label_color_graph();
label_colorbar();
draw_colorbar(1);
}
/*
* Subroutine: control_cgraph
* Purpose: Mouse controlled interaction to alter color table.
* Called by: control_event_loop in MainEvent.c
* Xlib calls: XSync(), XCheckWindowEvent(), XStoreColors()
*/
void control_cgraph ( )
{
static int not_active = 1;
static int oldmode = MOP;
int drop_cgraph_vertex();
void draw_cgraph(), move_cgraph_vertices(), get_cgraph_vertex();
void highlight_active_cgraph_vertex(), make_cellstore_from_tables();
void replace_draw_queue_end();
/* make sure this an event which we want */
if( (control.event.xbutton.window != cgraph.graph.ID) &&
(control.priority == 0) )
return;
/* we assume this event was meant to be fielded exclusively here */
control.completed = 1;
switch( control.event.type ) {
case MotionNotify:
/* get only the most recent move */
XSync(dispbox.display, 0);
while( XCheckWindowEvent(cgraph.graph.display, cgraph.graph.ID,
ButtonMotionMask, &control.event) );
if( (control.event.xmotion.state & BUTTONMASK) == 0 ) {
/* if no buttons are down, we must be done */
control.priority = 0;
control.mode = oldmode;
return;
}
/* alter table(s) and graph */
move_cgraph_vertices(control.event.xmotion.x, control.event.xmotion.y);
/* make color cellmap and send colors to the display */
make_cellstore_from_tables(&color);
XStoreColors(color.display, color.colormap,
color.cellstore, color.ncolors);
/* shift will cause the graph to track the changes as well */
if( ((control.event.xmotion.state & (ShiftMask | LockMask)) !=0) ^
(control.tracking !=0) )
draw_cgraph (0, 1);
break;
case ButtonPress:
/* if one of the three mouse buttons was pressed */
if( (control.event.xbutton.state & BUTTONMASK) == 0 ) {
/* if no mouse button was previously down */
if( control.event.xbutton.state & ControlMask ) {
/* lone button with control key means delete vertex */
if( drop_cgraph_vertex(&control.event) == 0 )
/* if nothing is deleted, do nothing */
return;
} else if( (control.event.xbutton.button == Button1) ||
(control.event.xbutton.button == Button2) ||
(control.event.xbutton.button == Button3) ) {
/* first button to grab a vertex starts priority mode */
oldmode = control.mode;
control.mode = GOP;
/* events to send through here in any case */
control.priority = EVENTMASK;
} else {
return;
}
} else if( not_active || (control.event.xbutton.state & ControlMask) )
/* don't respond if things don't look right */
return;
/* if this was not a delete command, it is a grab vertex command */
if( (control.event.xbutton.state & ControlMask) == 0 ) {
not_active = 0;
get_cgraph_vertex(&control.event);
}
/* make color cellmap and send colors to the display */
make_cellstore_from_tables(&color);
XStoreColors(color.display, color.colormap,
color.cellstore, color.ncolors);
/* redraw the graph with newly grabbed vertex */
draw_cgraph(0, 1);
highlight_active_cgraph_vertex();
break;
case ButtonRelease:
/* draw the color graph when any button is released */
draw_cgraph(0, 0);
switch( control.event.xbutton.button ) {
case Button1:
cgraph.red.active = 0;
if( (control.event.xbutton.state & BUTTONMASK) == Button1Mask )
not_active = 1;
else if( cgraph.queue[2] == &cgraph.red )
replace_draw_queue_end();
break;
case Button2:
cgraph.green.active = 0;
if( (control.event.xbutton.state & BUTTONMASK) == Button2Mask )
not_active = 1;
else if( cgraph.queue[2] == &cgraph.green )
replace_draw_queue_end();
break;
case Button3:
cgraph.blue.active = 0;
if( (control.event.xbutton.state & BUTTONMASK) == Button3Mask )
not_active = 1;
else if( cgraph.queue[2] == &cgraph.blue )
replace_draw_queue_end();
break;
}
if( not_active ) {
/* if the last button was just released */
control.priority = 0;
control.mode = oldmode;
} else
/* if there are still active vertices, rehighlight them */
highlight_active_cgraph_vertex();
break;
default:
/* this event was not meant for us */
control.completed = 0;
break;
}
}
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