1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
27 #ifndef __GTK_WIDGET_H__
28 #define __GTK_WIDGET_H__
31 #include <gtk/gtkaccelgroup.h>
32 #include <gtk/gtkobject.h>
33 #include <gtk/gtkadjustment.h>
34 #include <gtk/gtkstyle.h>
39 #endif /* __cplusplus */
42 /* The flags that are used by GtkWidget on top of the
43 * flags field of GtkObject.
47 GTK_TOPLEVEL = 1 << 4,
48 GTK_NO_WINDOW = 1 << 5,
49 GTK_REALIZED = 1 << 6,
52 GTK_SENSITIVE = 1 << 9,
53 GTK_PARENT_SENSITIVE = 1 << 10,
54 GTK_CAN_FOCUS = 1 << 11,
55 GTK_HAS_FOCUS = 1 << 12,
57 /* widget is allowed to receive the default via gtk_widget_grab_default
58 * and will reserve space to draw the default if possible */
59 GTK_CAN_DEFAULT = 1 << 13,
61 /* the widget currently is receiving the default action and should be drawn
62 * appropriately if possible */
63 GTK_HAS_DEFAULT = 1 << 14,
65 GTK_HAS_GRAB = 1 << 15,
66 GTK_RC_STYLE = 1 << 16,
67 GTK_COMPOSITE_CHILD = 1 << 17,
68 GTK_NO_REPARENT = 1 << 18,
69 GTK_APP_PAINTABLE = 1 << 19,
71 /* the widget when focused will receive the default action and have
72 * HAS_DEFAULT set even if there is a different widget set as default */
73 GTK_RECEIVES_DEFAULT = 1 << 20,
75 GTK_DOUBLE_BUFFERED = 1 << 21
78 /* Macro for casting a pointer to a GtkWidget or GtkWidgetClass pointer.
79 * Macros for testing whether `widget' or `klass' are of type GTK_TYPE_WIDGET.
81 #define GTK_TYPE_WIDGET (gtk_widget_get_type ())
82 #define GTK_WIDGET(widget) (GTK_CHECK_CAST ((widget), GTK_TYPE_WIDGET, GtkWidget))
83 #define GTK_WIDGET_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_WIDGET, GtkWidgetClass))
84 #define GTK_IS_WIDGET(widget) (GTK_CHECK_TYPE ((widget), GTK_TYPE_WIDGET))
85 #define GTK_IS_WIDGET_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_WIDGET))
86 #define GTK_WIDGET_GET_CLASS(obj) (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_WIDGET, GtkWidgetClass))
88 /* Macros for extracting various fields from GtkWidget and GtkWidgetClass.
90 #define GTK_WIDGET_TYPE(wid) (GTK_OBJECT_TYPE (wid))
91 #define GTK_WIDGET_STATE(wid) (GTK_WIDGET (wid)->state)
92 #define GTK_WIDGET_SAVED_STATE(wid) (GTK_WIDGET (wid)->saved_state)
94 /* Macros for extracting the widget flags from GtkWidget.
96 #define GTK_WIDGET_FLAGS(wid) (GTK_OBJECT_FLAGS (wid))
97 #define GTK_WIDGET_TOPLEVEL(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_TOPLEVEL) != 0)
98 #define GTK_WIDGET_NO_WINDOW(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_NO_WINDOW) != 0)
99 #define GTK_WIDGET_REALIZED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_REALIZED) != 0)
100 #define GTK_WIDGET_MAPPED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_MAPPED) != 0)
101 #define GTK_WIDGET_VISIBLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_VISIBLE) != 0)
102 #define GTK_WIDGET_DRAWABLE(wid) (GTK_WIDGET_VISIBLE (wid) && GTK_WIDGET_MAPPED (wid))
103 #define GTK_WIDGET_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_SENSITIVE) != 0)
104 #define GTK_WIDGET_PARENT_SENSITIVE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_PARENT_SENSITIVE) != 0)
105 #define GTK_WIDGET_IS_SENSITIVE(wid) (GTK_WIDGET_SENSITIVE (wid) && \
106 GTK_WIDGET_PARENT_SENSITIVE (wid))
107 #define GTK_WIDGET_CAN_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_FOCUS) != 0)
108 #define GTK_WIDGET_HAS_FOCUS(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_FOCUS) != 0)
109 #define GTK_WIDGET_CAN_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_CAN_DEFAULT) != 0)
110 #define GTK_WIDGET_HAS_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_DEFAULT) != 0)
111 #define GTK_WIDGET_HAS_GRAB(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_HAS_GRAB) != 0)
112 #define GTK_WIDGET_RC_STYLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_RC_STYLE) != 0)
113 #define GTK_WIDGET_COMPOSITE_CHILD(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_COMPOSITE_CHILD) != 0)
114 #define GTK_WIDGET_APP_PAINTABLE(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_APP_PAINTABLE) != 0)
115 #define GTK_WIDGET_RECEIVES_DEFAULT(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_RECEIVES_DEFAULT) != 0)
116 #define GTK_WIDGET_DOUBLE_BUFFERED(wid) ((GTK_WIDGET_FLAGS (wid) & GTK_DOUBLE_BUFFERED) != 0)
118 /* Macros for setting and clearing widget flags.
120 #define GTK_WIDGET_SET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) |= (flag)); }G_STMT_END
121 #define GTK_WIDGET_UNSET_FLAGS(wid,flag) G_STMT_START{ (GTK_WIDGET_FLAGS (wid) &= ~(flag)); }G_STMT_END
125 typedef struct _GtkRequisition GtkRequisition;
126 typedef struct _GdkRectangle GtkAllocation;
127 typedef struct _GtkSelectionData GtkSelectionData;
128 typedef struct _GtkWidgetClass GtkWidgetClass;
129 typedef struct _GtkWidgetAuxInfo GtkWidgetAuxInfo;
130 typedef struct _GtkWidgetShapeInfo GtkWidgetShapeInfo;
132 typedef void (*GtkCallback) (GtkWidget *widget,
135 /* A requisition is a desired amount of space which a
136 * widget may request.
138 struct _GtkRequisition
144 /* The widget is the base of the tree for displayable objects.
145 * (A displayable object is one which takes up some amount
146 * of screen real estate). It provides a common base and interface
147 * which actual widgets must adhere to.
151 /* The object structure needs to be the first
152 * element in the widget structure in order for
153 * the object mechanism to work correctly. This
154 * allows a GtkWidget pointer to be cast to a
159 /* 16 bits of internally used private flags.
160 * this will be packed into the same 4 byte alignment frame that
161 * state and saved_state go. we therefore don't waste any new
164 guint16 private_flags;
166 /* The state of the widget. There are actually only
167 * 5 widget states (defined in "gtkenums.h").
171 /* The saved state of the widget. When a widgets state
172 * is changed to GTK_STATE_INSENSITIVE via
173 * "gtk_widget_set_state" or "gtk_widget_set_sensitive"
174 * the old state is kept around in this field. The state
175 * will be restored once the widget gets sensitive again.
179 /* The widgets name. If the widget does not have a name
180 * (the name is NULL), then its name (as returned by
181 * "gtk_widget_get_name") is its classes name.
182 * Among other things, the widget name is used to determine
183 * the style to use for a widget.
187 /* The style for the widget. The style contains the
188 * colors the widget should be drawn in for each state
189 * along with graphics contexts used to draw with and
190 * the font to use for text.
194 /* The widgets desired size.
196 GtkRequisition requisition;
198 /* The widgets allocated size.
200 GtkAllocation allocation;
202 /* The widgets window or its parent window if it does
203 * not have a window. (Which will be indicated by the
204 * GTK_NO_WINDOW flag being set).
208 /* The widgets parent.
213 struct _GtkWidgetClass
215 /* The object class structure needs to be the first
216 * element in the widget class structure in order for
217 * the class mechanism to work correctly. This allows a
218 * GtkWidgetClass pointer to be cast to a GtkObjectClass
221 GtkObjectClass parent_class;
223 /* The signal to emit when a widget of this class is activated,
224 * gtk_widget_activate() handles the emission.
225 * Implementation of this signal is optional.
227 guint activate_signal;
229 /* This signal is emitted when a widget of this class is added
230 * to a scrolling aware parent, gtk_widget_set_scroll_adjustments()
231 * handles the emission.
232 * Implementation of this signal is optional.
234 guint set_scroll_adjustments_signal;
237 void (* show) (GtkWidget *widget);
238 void (* show_all) (GtkWidget *widget);
239 void (* hide) (GtkWidget *widget);
240 void (* hide_all) (GtkWidget *widget);
241 void (* map) (GtkWidget *widget);
242 void (* unmap) (GtkWidget *widget);
243 void (* realize) (GtkWidget *widget);
244 void (* unrealize) (GtkWidget *widget);
245 void (* draw) (GtkWidget *widget,
247 void (* draw_focus) (GtkWidget *widget);
248 void (* draw_default) (GtkWidget *widget);
249 void (* size_request) (GtkWidget *widget,
250 GtkRequisition *requisition);
251 void (* size_allocate) (GtkWidget *widget,
252 GtkAllocation *allocation);
253 void (* state_changed) (GtkWidget *widget,
254 GtkStateType previous_state);
255 void (* parent_set) (GtkWidget *widget,
256 GtkWidget *previous_parent);
257 void (* style_set) (GtkWidget *widget,
258 GtkStyle *previous_style);
259 void (* direction_changed) (GtkWidget *widget,
260 GtkTextDirection previous_direction);
263 gint (* add_accelerator) (GtkWidget *widget,
264 guint accel_signal_id,
265 GtkAccelGroup *accel_group,
267 GdkModifierType accel_mods,
268 GtkAccelFlags accel_flags);
269 void (* remove_accelerator) (GtkWidget *widget,
270 GtkAccelGroup *accel_group,
272 GdkModifierType accel_mods);
275 void (* grab_focus) (GtkWidget *widget);
278 gint (* event) (GtkWidget *widget,
280 gint (* button_press_event) (GtkWidget *widget,
281 GdkEventButton *event);
282 gint (* button_release_event) (GtkWidget *widget,
283 GdkEventButton *event);
284 gint (* scroll_event) (GtkWidget *widget,
285 GdkEventScroll *event);
286 gint (* motion_notify_event) (GtkWidget *widget,
287 GdkEventMotion *event);
288 gint (* delete_event) (GtkWidget *widget,
290 gint (* destroy_event) (GtkWidget *widget,
292 gint (* expose_event) (GtkWidget *widget,
293 GdkEventExpose *event);
294 gint (* key_press_event) (GtkWidget *widget,
296 gint (* key_release_event) (GtkWidget *widget,
298 gint (* enter_notify_event) (GtkWidget *widget,
299 GdkEventCrossing *event);
300 gint (* leave_notify_event) (GtkWidget *widget,
301 GdkEventCrossing *event);
302 gint (* configure_event) (GtkWidget *widget,
303 GdkEventConfigure *event);
304 gint (* focus_in_event) (GtkWidget *widget,
305 GdkEventFocus *event);
306 gint (* focus_out_event) (GtkWidget *widget,
307 GdkEventFocus *event);
308 gint (* map_event) (GtkWidget *widget,
310 gint (* unmap_event) (GtkWidget *widget,
312 gint (* property_notify_event) (GtkWidget *widget,
313 GdkEventProperty *event);
314 gint (* selection_clear_event) (GtkWidget *widget,
315 GdkEventSelection *event);
316 gint (* selection_request_event) (GtkWidget *widget,
317 GdkEventSelection *event);
318 gint (* selection_notify_event) (GtkWidget *widget,
319 GdkEventSelection *event);
320 gint (* proximity_in_event) (GtkWidget *widget,
321 GdkEventProximity *event);
322 gint (* proximity_out_event) (GtkWidget *widget,
323 GdkEventProximity *event);
324 gint (* visibility_notify_event) (GtkWidget *widget,
325 GdkEventVisibility *event);
326 gint (* client_event) (GtkWidget *widget,
327 GdkEventClient *event);
328 gint (* no_expose_event) (GtkWidget *widget,
332 void (* selection_get) (GtkWidget *widget,
333 GtkSelectionData *selection_data,
336 void (* selection_received) (GtkWidget *widget,
337 GtkSelectionData *selection_data,
340 /* Source side drag signals */
341 void (* drag_begin) (GtkWidget *widget,
342 GdkDragContext *context);
343 void (* drag_end) (GtkWidget *widget,
344 GdkDragContext *context);
345 void (* drag_data_get) (GtkWidget *widget,
346 GdkDragContext *context,
347 GtkSelectionData *selection_data,
350 void (* drag_data_delete) (GtkWidget *widget,
351 GdkDragContext *context);
353 /* Target side drag signals */
354 void (* drag_leave) (GtkWidget *widget,
355 GdkDragContext *context,
357 gboolean (* drag_motion) (GtkWidget *widget,
358 GdkDragContext *context,
362 gboolean (* drag_drop) (GtkWidget *widget,
363 GdkDragContext *context,
367 void (* drag_data_received) (GtkWidget *widget,
368 GdkDragContext *context,
371 GtkSelectionData *selection_data,
376 void (* debug_msg) (GtkWidget *widget,
377 const gchar *string);
379 /* Padding for future expandsion */
386 struct _GtkWidgetAuxInfo
394 struct _GtkWidgetShapeInfo
398 GdkBitmap *shape_mask;
401 GtkType gtk_widget_get_type (void) G_GNUC_CONST;
402 GtkWidget* gtk_widget_new (GtkType type,
403 const gchar *first_arg_name,
405 GtkWidget* gtk_widget_newv (GtkType type,
408 GtkWidget* gtk_widget_ref (GtkWidget *widget);
409 void gtk_widget_unref (GtkWidget *widget);
410 void gtk_widget_destroy (GtkWidget *widget);
411 void gtk_widget_destroyed (GtkWidget *widget,
412 GtkWidget **widget_pointer);
413 void gtk_widget_get (GtkWidget *widget,
415 void gtk_widget_getv (GtkWidget *widget,
418 void gtk_widget_set (GtkWidget *widget,
419 const gchar *first_arg_name,
421 void gtk_widget_setv (GtkWidget *widget,
424 void gtk_widget_unparent (GtkWidget *widget);
425 void gtk_widget_show (GtkWidget *widget);
426 void gtk_widget_show_now (GtkWidget *widget);
427 void gtk_widget_hide (GtkWidget *widget);
428 void gtk_widget_show_all (GtkWidget *widget);
429 void gtk_widget_hide_all (GtkWidget *widget);
430 void gtk_widget_map (GtkWidget *widget);
431 void gtk_widget_unmap (GtkWidget *widget);
432 void gtk_widget_realize (GtkWidget *widget);
433 void gtk_widget_unrealize (GtkWidget *widget);
436 void gtk_widget_queue_draw (GtkWidget *widget);
437 void gtk_widget_queue_draw_area (GtkWidget *widget,
442 void gtk_widget_queue_clear (GtkWidget *widget);
443 void gtk_widget_queue_clear_area (GtkWidget *widget,
450 void gtk_widget_queue_resize (GtkWidget *widget);
451 void gtk_widget_draw (GtkWidget *widget,
453 void gtk_widget_draw_focus (GtkWidget *widget);
454 void gtk_widget_draw_default (GtkWidget *widget);
455 void gtk_widget_size_request (GtkWidget *widget,
456 GtkRequisition *requisition);
457 void gtk_widget_size_allocate (GtkWidget *widget,
458 GtkAllocation *allocation);
459 void gtk_widget_get_child_requisition (GtkWidget *widget,
460 GtkRequisition *requisition);
461 void gtk_widget_add_accelerator (GtkWidget *widget,
462 const gchar *accel_signal,
463 GtkAccelGroup *accel_group,
466 GtkAccelFlags accel_flags);
467 void gtk_widget_remove_accelerator (GtkWidget *widget,
468 GtkAccelGroup *accel_group,
471 void gtk_widget_remove_accelerators (GtkWidget *widget,
472 const gchar *accel_signal,
473 gboolean visible_only);
474 guint gtk_widget_accelerator_signal (GtkWidget *widget,
475 GtkAccelGroup *accel_group,
478 void gtk_widget_lock_accelerators (GtkWidget *widget);
479 void gtk_widget_unlock_accelerators (GtkWidget *widget);
480 gboolean gtk_widget_accelerators_locked (GtkWidget *widget);
481 gint gtk_widget_event (GtkWidget *widget,
484 gboolean gtk_widget_activate (GtkWidget *widget);
485 gboolean gtk_widget_set_scroll_adjustments (GtkWidget *widget,
486 GtkAdjustment *hadjustment,
487 GtkAdjustment *vadjustment);
489 void gtk_widget_reparent (GtkWidget *widget,
490 GtkWidget *new_parent);
491 void gtk_widget_popup (GtkWidget *widget,
494 gint gtk_widget_intersect (GtkWidget *widget,
496 GdkRectangle *intersection);
498 void gtk_widget_grab_focus (GtkWidget *widget);
499 void gtk_widget_grab_default (GtkWidget *widget);
501 void gtk_widget_set_name (GtkWidget *widget,
503 gchar* gtk_widget_get_name (GtkWidget *widget);
504 void gtk_widget_set_state (GtkWidget *widget,
506 void gtk_widget_set_sensitive (GtkWidget *widget,
508 void gtk_widget_set_app_paintable (GtkWidget *widget,
509 gboolean app_paintable);
510 void gtk_widget_set_double_buffered (GtkWidget *widget,
511 gboolean double_buffered);
512 void gtk_widget_set_parent (GtkWidget *widget,
514 void gtk_widget_set_parent_window (GtkWidget *widget,
515 GdkWindow *parent_window);
516 GdkWindow *gtk_widget_get_parent_window (GtkWidget *widget);
517 void gtk_widget_set_uposition (GtkWidget *widget,
520 void gtk_widget_set_usize (GtkWidget *widget,
523 void gtk_widget_set_events (GtkWidget *widget,
525 void gtk_widget_add_events (GtkWidget *widget,
527 void gtk_widget_set_extension_events (GtkWidget *widget,
528 GdkExtensionMode mode);
530 GdkExtensionMode gtk_widget_get_extension_events (GtkWidget *widget);
531 GtkWidget* gtk_widget_get_toplevel (GtkWidget *widget);
532 GtkWidget* gtk_widget_get_ancestor (GtkWidget *widget,
533 GtkType widget_type);
534 GdkColormap* gtk_widget_get_colormap (GtkWidget *widget);
535 GdkVisual* gtk_widget_get_visual (GtkWidget *widget);
537 /* The following functions must not be called on an already
538 * realized widget. Because it is possible that somebody
539 * can call get_colormap() or get_visual() and save the
540 * result, these functions are probably only safe to
541 * call in a widget's init() function.
543 void gtk_widget_set_colormap (GtkWidget *widget,
544 GdkColormap *colormap);
546 gint gtk_widget_get_events (GtkWidget *widget);
547 void gtk_widget_get_pointer (GtkWidget *widget,
551 gint gtk_widget_is_ancestor (GtkWidget *widget,
552 GtkWidget *ancestor);
554 /* Hide widget and return TRUE.
556 gint gtk_widget_hide_on_delete (GtkWidget *widget);
560 void gtk_widget_set_style (GtkWidget *widget,
562 void gtk_widget_set_rc_style (GtkWidget *widget);
563 void gtk_widget_ensure_style (GtkWidget *widget);
564 GtkStyle* gtk_widget_get_style (GtkWidget *widget);
565 void gtk_widget_restore_default_style (GtkWidget *widget);
567 void gtk_widget_modify_style (GtkWidget *widget,
569 GtkRcStyle *gtk_widget_get_modifier_style (GtkWidget *widget);
570 void gtk_widget_modify_fg (GtkWidget *widget,
573 void gtk_widget_modify_bg (GtkWidget *widget,
576 void gtk_widget_modify_text (GtkWidget *widget,
579 void gtk_widget_modify_base (GtkWidget *widget,
582 void gtk_widget_modify_font (GtkWidget *widget,
583 PangoFontDescription *font_desc);
585 PangoContext *gtk_widget_create_pango_context (GtkWidget *widget);
586 PangoContext *gtk_widget_get_pango_context (GtkWidget *widget);
587 PangoLayout *gtk_widget_create_pango_layout (GtkWidget *widget,
590 GdkPixbuf* gtk_widget_render_stock_icon (GtkWidget *widget,
591 const gchar *stock_id,
593 const gchar *detail);
595 /* handle composite names for GTK_COMPOSITE_CHILD widgets,
596 * the returned name is newly allocated.
598 void gtk_widget_set_composite_name (GtkWidget *widget,
600 gchar* gtk_widget_get_composite_name (GtkWidget *widget);
602 /* Descend recursively and set rc-style on all widgets without user styles */
603 void gtk_widget_reset_rc_styles (GtkWidget *widget);
605 /* Push/pop pairs, to change default values upon a widget's creation.
606 * This will override the values that got set by the
607 * gtk_widget_set_default_* () functions.
609 void gtk_widget_push_style (GtkStyle *style);
610 void gtk_widget_push_colormap (GdkColormap *cmap);
611 void gtk_widget_push_composite_child (void);
612 void gtk_widget_pop_composite_child (void);
613 void gtk_widget_pop_style (void);
614 void gtk_widget_pop_colormap (void);
616 /* Set certain default values to be used at widget creation time.
618 void gtk_widget_set_default_style (GtkStyle *style);
619 void gtk_widget_set_default_colormap (GdkColormap *colormap);
620 GtkStyle* gtk_widget_get_default_style (void);
621 GdkColormap* gtk_widget_get_default_colormap (void);
622 GdkVisual* gtk_widget_get_default_visual (void);
624 /* Functions for setting directionality for widgets
627 void gtk_widget_set_direction (GtkWidget *widget,
628 GtkTextDirection dir);
629 GtkTextDirection gtk_widget_get_direction (GtkWidget *widget);
631 void gtk_widget_set_default_direction (GtkTextDirection dir);
632 GtkTextDirection gtk_widget_get_default_direction (void);
634 /* Counterpart to gdk_window_shape_combine_mask.
636 void gtk_widget_shape_combine_mask (GtkWidget *widget,
637 GdkBitmap *shape_mask,
641 /* internal function */
642 void gtk_widget_reset_shapes (GtkWidget *widget);
644 /* Compute a widget's path in the form "GtkWindow.MyLabel", and
645 * return newly alocated strings.
647 void gtk_widget_path (GtkWidget *widget,
650 gchar **path_reversed);
651 void gtk_widget_class_path (GtkWidget *widget,
654 gchar **path_reversed);
656 #if defined (GTK_TRACE_OBJECTS) && defined (__GNUC__)
657 # define gtk_widget_ref gtk_object_ref
658 # define gtk_widget_unref gtk_object_unref
659 #endif /* GTK_TRACE_OBJECTS && __GNUC__ */
665 #endif /* __cplusplus */
668 #endif /* __GTK_WIDGET_H__ */