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(require 'gtk-ffi)
(defconst GTK_TYPE_INVALID 0)
(defconst GTK_TYPE_NONE 1)
(defconst GTK_TYPE_CHAR 2)
(defconst GTK_TYPE_UCHAR 3)
(defconst GTK_TYPE_BOOL 4)
(defconst GTK_TYPE_INT 5)
(defconst GTK_TYPE_UINT 6)
(defconst GTK_TYPE_LONG 7)
(defconst GTK_TYPE_ULONG 8)
(defconst GTK_TYPE_FLOAT 9)
(defconst GTK_TYPE_DOUBLE 10)
(defconst GTK_TYPE_STRING 11)
(defconst GTK_TYPE_ENUM 12)
(defconst GTK_TYPE_FLAGS 13)
(defconst GTK_TYPE_BOXED 14)
(defconst GTK_TYPE_POINTER 15)
(defconst GTK_TYPE_SIGNAL 16)
(defconst GTK_TYPE_ARGS 17)
(defconst GTK_TYPE_CALLBACK 18)
(defconst GTK_TYPE_C_CALLBACK 19)
(defconst GTK_TYPE_FOREIGN 20)
(defconst GTK_TYPE_OBJECT 21)
(defconst gtk-value-accessor-names
'("INVALID" "NONE" "CHAR" "UCHAR" "BOOL" "INT" "UINT" "LONG" "ULONG" "FLOAT" "DOUBLE"
"STRING" "ENUM" "FLAGS" "BOXED" "POINTER" "SIGNAL" "ARGS" "CALLBACK" "C_CALLBACK"
"FOREIGN" "OBJECT"))
(defun define-widget-accessors (gtk-class
wrapper
prefix args)
"Output stub C code to access parts of a widget from lisp.
GTK-CLASS is the GTK class to grant access to.
WRAPPER is a fragment to construct GTK C macros for typechecking/etc. (ie: WIDGET)
ARGS is a list of (type . name) cons cells.
Defines a whole slew of functions to access & set the slots in the
structure."
(set-buffer (get-buffer-create "emacs-widget-accessors.c"))
(goto-char (point-max))
(let ((arg)
(base-arg-type nil)
(lisp-func-name nil)
(c-func-name nil)
(func-names nil))
(setq gtk-class (symbol-name gtk-class)
wrapper (upcase wrapper))
(while (setq arg (pop args))
(setq lisp-func-name (format "gtk-%s-%s" prefix (cdr arg))
lisp-func-name (replace-in-string lisp-func-name "_" "-")
c-func-name (concat "F" (replace-in-string lisp-func-name "-" "_")))
(insert
"DEFUN (\"" lisp-func-name "\", " c-func-name ", 1, 1, 0, /*\n"
"Access the `" (symbol-name (cdr arg)) "' slot of OBJ, a " gtk-class " object.\n"
"*/\n"
"\t(obj))\n"
"{\n"
(format "\t%s *the_obj = NULL;\n" gtk-class)
"\tGtkArg arg;\n"
"\n"
"\tCHECK_GTK_OBJECT (obj);\n"
"\n"
(format "\tif (!GTK_IS_%s (XGTK_OBJECT (obj)->object))\n" wrapper)
"\t{\n"
(format "\t\tsignal_simple_error (\"Object is not a %s\", obj);\n" gtk-class)
"\t};\n"
"\n"
(format "\tthe_obj = GTK_%s (XGTK_OBJECT (obj)->object);\n" wrapper)
(format "\targ.type = gtk_type_from_name (\"%s\");\n" (symbol-name (car arg))))
; (format "\targ.type = GTK_TYPE_%s;\n" (or
; (nth (gtk-fundamental-type (car arg))
; gtk-value-accessor-names)
; (case (car arg)
; (GtkListOfString "STRING_LIST")
; (GtkListOfObject "OBJECT_LIST")
; (otherwise
; "POINTER")))))
(setq base-arg-type (gtk-fundamental-type (car arg)))
(cond
((= base-arg-type GTK_TYPE_OBJECT)
(insert
(format "\tGTK_VALUE_OBJECT (arg) = GTK_OBJECT (the_obj->%s);"
(cdr arg))))
((or (= base-arg-type GTK_TYPE_POINTER)
(= base-arg-type GTK_TYPE_BOXED))
(insert
(format "\tGTK_VALUE_%s (arg) = (void *)the_obj->%s;"
(nth (gtk-fundamental-type (car arg)) gtk-value-accessor-names)
(cdr arg))))
(t
(insert
(format "\tGTK_VALUE_%s (arg) = the_obj->%s;"
(or (nth (gtk-fundamental-type (car arg)) gtk-value-accessor-names) "POINTER")
(cdr arg)))))
(insert
"\n"
"\treturn (gtk_type_to_lisp (&arg));\n"
"}\n\n")
(push c-func-name func-names))
func-names))
(defun import-widget-accessors (file syms-function-name &rest description)
"Import multiple widgets, and emit a suitable vars_of_foo() function for them.\n"
(let ((c-mode-common-hook nil)
(c-mode-hook nil))
(find-file file))
(erase-buffer)
(let ((c-funcs nil))
(while description
(setq c-funcs (nconc (define-widget-accessors
(pop description) (pop description)
(pop description) (pop description)) c-funcs)))
(goto-char (point-max))
(insert "void " syms-function-name " (void)\n"
"{\n\t"
(mapconcat (lambda (x)
(concat "DEFSUBR (" x ");")) c-funcs "\n\t")
"\n}"))
(save-buffer))
;; Because the new FFI layer imports GTK types lazily, we need to load
;; up all of the gtk types we know about, or we get errors about
;; unknown GTK types later on.
(mapatoms (lambda (sym)
(if (string-match "gtk-[^-]+-get-type" (symbol-name sym))
(funcall sym))))
(import-widget-accessors
"../../src/emacs-widget-accessors.c"
"syms_of_widget_accessors "
'GtkAdjustment "ADJUSTMENT" "adjustment"
'((gfloat . lower)
(gfloat . upper)
(gfloat . value)
(gfloat . step_increment)
(gfloat . page_increment)
(gfloat . page_size))
'GtkWidget "WIDGET" "widget"
'((GtkStyle . style)
(GdkWindow . window)
(GtkStateType . state)
(GtkString . name)
(GtkWidget . parent))
'GtkButton "BUTTON" "button"
'((GtkWidget . child)
(gboolean . in_button)
(gboolean . button_down))
'GtkCombo "COMBO" "combo"
'((GtkWidget . entry)
(GtkWidget . button)
(GtkWidget . popup)
(GtkWidget . popwin)
(GtkWidget . list))
'GtkGammaCurve "GAMMA_CURVE" "gamma-curve"
'((GtkWidget . table)
(GtkWidget . curve)
(gfloat . gamma)
(GtkWidget . gamma_dialog)
(GtkWidget . gamma_text))
'GtkCheckMenuItem "CHECK_MENU_ITEM" "check-menu-item"
'((gboolean . active))
'GtkNotebook "NOTEBOOK" "notebook"
'((GtkPositionType . tab_pos))
'GtkText "TEXT" "text"
'((GtkAdjustment . hadj)
(GtkAdjustment . vadj))
'GtkFileSelection "FILE_SELECTION" "file-selection"
'((GtkWidget . dir_list)
(GtkWidget . file_list)
(GtkWidget . selection_entry)
(GtkWidget . selection_text)
(GtkWidget . main_vbox)
(GtkWidget . ok_button)
(GtkWidget . cancel_button)
(GtkWidget . help_button)
(GtkWidget . action_area))
'GtkFontSelectionDialog "FONT_SELECTION_DIALOG" "font-selection-dialog"
'((GtkWidget . fontsel)
(GtkWidget . main_vbox)
(GtkWidget . action_area)
(GtkWidget . ok_button)
(GtkWidget . apply_button)
(GtkWidget . cancel_button))
'GtkColorSelectionDialog "COLOR_SELECTION_DIALOG" "color-selection-dialog"
'((GtkWidget . colorsel)
(GtkWidget . main_vbox)
(GtkWidget . ok_button)
(GtkWidget . reset_button)
(GtkWidget . cancel_button)
(GtkWidget . help_button))
'GtkDialog "DIALOG" "dialog"
'((GtkWidget . vbox)
(GtkWidget . action_area))
'GtkInputDialog "INPUT_DIALOG" "input-dialog"
'((GtkWidget . close_button)
(GtkWidget . save_button))
'GtkPlug "PLUG" "plug"
'((GdkWindow . socket_window)
(gint . same_app))
'GtkObject "OBJECT" "object"
'((guint . flags)
(guint . ref_count))
'GtkPaned "PANED" "paned"
'((GtkWidget . child1)
(GtkWidget . child2)
(gboolean . child1_resize)
(gboolean . child2_resize)
(gboolean . child1_shrink)
(gboolean . child2_shrink))
'GtkCList "CLIST" "clist"
'((gint . rows)
(gint . columns)
(GtkAdjustment . hadjustment)
(GtkAdjustment . vadjustment)
(GtkSortType . sort_type)
(gint . focus_row)
(gint . sort_column))
'GtkList "LIST" "list"
'((GtkListOfObject . children)
(GtkListOfObject . selection))
'GtkTree "TREE" "tree"
'((GtkListOfObject . children)
(GtkTree . root_tree)
(GtkWidget . tree_owner)
(GtkListOfObject . selection))
'GtkTreeItem "TREE_ITEM" "tree-item"
'((GtkWidget . subtree))
'GtkScrolledWindow "SCROLLED_WINDOW" "scrolled-window"
'((GtkWidget . hscrollbar)
(GtkWidget . vscrollbar)
(gboolean . hscrollbar_visible)
(gboolean . vscrollbar_visible))
)
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