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 #undef GTK_DISABLE_DEPRECATED
32 #include "gtkeventbox.h"
33 #include "gtkpixmap.h"
35 #include "gtkmarshalers.h"
36 #include "gtksignal.h"
37 #define GTK_ENABLE_BROKEN
39 #include "gtktreeitem.h"
44 #include "tree_plus.xpm"
45 #include "tree_minus.xpm"
47 #define DEFAULT_DELTA 9
55 typedef struct _GtkTreePixmaps GtkTreePixmaps;
57 struct _GtkTreePixmaps {
59 GdkColormap *colormap;
61 GdkPixmap *pixmap_plus;
62 GdkPixmap *pixmap_minus;
64 GdkBitmap *mask_minus;
67 static GList *pixmaps = NULL;
69 static void gtk_tree_item_class_init (GtkTreeItemClass *klass);
70 static void gtk_tree_item_init (GtkTreeItem *tree_item);
71 static void gtk_tree_item_realize (GtkWidget *widget);
72 static void gtk_tree_item_size_request (GtkWidget *widget,
73 GtkRequisition *requisition);
74 static void gtk_tree_item_size_allocate (GtkWidget *widget,
75 GtkAllocation *allocation);
76 static void gtk_tree_item_paint (GtkWidget *widget,
78 static gint gtk_tree_item_button_press (GtkWidget *widget,
79 GdkEventButton *event);
80 static gint gtk_tree_item_expose (GtkWidget *widget,
81 GdkEventExpose *event);
82 static void gtk_tree_item_forall (GtkContainer *container,
83 gboolean include_internals,
85 gpointer callback_data);
87 static void gtk_real_tree_item_select (GtkItem *item);
88 static void gtk_real_tree_item_deselect (GtkItem *item);
89 static void gtk_real_tree_item_toggle (GtkItem *item);
90 static void gtk_real_tree_item_expand (GtkTreeItem *item);
91 static void gtk_real_tree_item_collapse (GtkTreeItem *item);
92 static void gtk_tree_item_destroy (GtkObject *object);
93 static gint gtk_tree_item_subtree_button_click (GtkWidget *widget);
94 static void gtk_tree_item_subtree_button_changed_state (GtkWidget *widget);
96 static void gtk_tree_item_map(GtkWidget*);
97 static void gtk_tree_item_unmap(GtkWidget*);
99 static void gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item);
100 static void gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item);
102 static GtkItemClass *parent_class = NULL;
103 static guint tree_item_signals[LAST_SIGNAL] = { 0 };
106 gtk_tree_item_get_type (void)
108 static GtkType tree_item_type = 0;
112 static const GtkTypeInfo tree_item_info =
115 sizeof (GtkTreeItem),
116 sizeof (GtkTreeItemClass),
117 (GtkClassInitFunc) gtk_tree_item_class_init,
118 (GtkObjectInitFunc) gtk_tree_item_init,
119 /* reserved_1 */ NULL,
120 /* reserved_2 */ NULL,
121 (GtkClassInitFunc) NULL,
125 tree_item_type = gtk_type_unique (gtk_item_get_type (), &tree_item_info);
128 return tree_item_type;
132 gtk_tree_item_class_init (GtkTreeItemClass *class)
134 GtkObjectClass *object_class;
135 GtkWidgetClass *widget_class;
136 GtkContainerClass *container_class;
137 GtkItemClass *item_class;
139 parent_class = gtk_type_class (GTK_TYPE_ITEM);
141 object_class = (GtkObjectClass*) class;
142 widget_class = (GtkWidgetClass*) class;
143 item_class = (GtkItemClass*) class;
144 container_class = (GtkContainerClass*) class;
146 object_class->destroy = gtk_tree_item_destroy;
148 widget_class->realize = gtk_tree_item_realize;
149 widget_class->size_request = gtk_tree_item_size_request;
150 widget_class->size_allocate = gtk_tree_item_size_allocate;
151 widget_class->button_press_event = gtk_tree_item_button_press;
152 widget_class->expose_event = gtk_tree_item_expose;
153 widget_class->map = gtk_tree_item_map;
154 widget_class->unmap = gtk_tree_item_unmap;
156 container_class->forall = gtk_tree_item_forall;
158 item_class->select = gtk_real_tree_item_select;
159 item_class->deselect = gtk_real_tree_item_deselect;
160 item_class->toggle = gtk_real_tree_item_toggle;
162 class->expand = gtk_real_tree_item_expand;
163 class->collapse = gtk_real_tree_item_collapse;
165 tree_item_signals[EXPAND_TREE] =
166 gtk_signal_new (I_("expand"),
168 GTK_CLASS_TYPE (object_class),
169 GTK_SIGNAL_OFFSET (GtkTreeItemClass, expand),
170 _gtk_marshal_VOID__VOID,
172 tree_item_signals[COLLAPSE_TREE] =
173 gtk_signal_new (I_("collapse"),
175 GTK_CLASS_TYPE (object_class),
176 GTK_SIGNAL_OFFSET (GtkTreeItemClass, collapse),
177 _gtk_marshal_VOID__VOID,
181 /* callback for event box mouse event */
183 gtk_tree_item_subtree_button_click (GtkWidget *widget)
187 g_return_val_if_fail (GTK_IS_EVENT_BOX (widget), FALSE);
189 item = (GtkTreeItem*) gtk_object_get_user_data (GTK_OBJECT (widget));
190 if (!GTK_WIDGET_IS_SENSITIVE (item))
194 gtk_tree_item_collapse (item);
196 gtk_tree_item_expand (item);
201 /* callback for event box state changed */
203 gtk_tree_item_subtree_button_changed_state (GtkWidget *widget)
205 g_return_if_fail (GTK_IS_EVENT_BOX (widget));
207 if (GTK_WIDGET_VISIBLE (widget))
210 if (widget->state == GTK_STATE_NORMAL)
211 gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
213 gdk_window_set_background (widget->window, &widget->style->bg[widget->state]);
215 if (GTK_WIDGET_DRAWABLE (widget))
216 gdk_window_clear_area (widget->window, 0, 0,
217 widget->allocation.width, widget->allocation.height);
222 gtk_tree_item_init (GtkTreeItem *tree_item)
224 GtkWidget *eventbox, *pixmapwid;
226 tree_item->expanded = FALSE;
227 tree_item->subtree = NULL;
228 GTK_WIDGET_SET_FLAGS (tree_item, GTK_CAN_FOCUS);
230 /* create an event box containing one pixmaps */
231 eventbox = gtk_event_box_new();
232 gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK);
233 gtk_signal_connect(GTK_OBJECT(eventbox), "state_changed",
234 (GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
236 gtk_signal_connect(GTK_OBJECT(eventbox), "realize",
237 (GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
239 gtk_signal_connect(GTK_OBJECT(eventbox), "button_press_event",
240 (GtkSignalFunc)gtk_tree_item_subtree_button_click,
242 gtk_object_set_user_data(GTK_OBJECT(eventbox), tree_item);
243 tree_item->pixmaps_box = eventbox;
245 /* create pixmap for button '+' */
246 pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
247 if (!tree_item->expanded)
248 gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
249 gtk_widget_show (pixmapwid);
250 tree_item->plus_pix_widget = pixmapwid;
251 g_object_ref_sink (tree_item->plus_pix_widget);
253 /* create pixmap for button '-' */
254 pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
255 if (tree_item->expanded)
256 gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
257 gtk_widget_show (pixmapwid);
258 tree_item->minus_pix_widget = pixmapwid;
259 g_object_ref_sink (tree_item->minus_pix_widget);
261 gtk_widget_set_parent (eventbox, GTK_WIDGET (tree_item));
266 gtk_tree_item_new (void)
268 GtkWidget *tree_item;
270 tree_item = GTK_WIDGET (gtk_type_new (gtk_tree_item_get_type ()));
276 gtk_tree_item_new_with_label (const gchar *label)
278 GtkWidget *tree_item;
279 GtkWidget *label_widget;
281 tree_item = gtk_tree_item_new ();
282 label_widget = gtk_label_new (label);
283 gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
285 gtk_container_add (GTK_CONTAINER (tree_item), label_widget);
286 gtk_widget_show (label_widget);
293 gtk_tree_item_set_subtree (GtkTreeItem *tree_item,
296 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
297 g_return_if_fail (GTK_IS_TREE (subtree));
299 if (tree_item->subtree)
301 g_warning("there is already a subtree for this tree item\n");
305 tree_item->subtree = subtree;
306 GTK_TREE (subtree)->tree_owner = GTK_WIDGET (tree_item);
308 /* show subtree button */
309 if (tree_item->pixmaps_box)
310 gtk_widget_show (tree_item->pixmaps_box);
312 if (tree_item->expanded)
313 gtk_widget_show (subtree);
315 gtk_widget_hide (subtree);
317 gtk_widget_set_parent (subtree, GTK_WIDGET (tree_item)->parent);
321 gtk_tree_item_select (GtkTreeItem *tree_item)
323 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
325 gtk_item_select (GTK_ITEM (tree_item));
329 gtk_tree_item_deselect (GtkTreeItem *tree_item)
331 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
333 gtk_item_deselect (GTK_ITEM (tree_item));
337 gtk_tree_item_expand (GtkTreeItem *tree_item)
339 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
341 gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[EXPAND_TREE], NULL);
345 gtk_tree_item_collapse (GtkTreeItem *tree_item)
347 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
349 gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[COLLAPSE_TREE], NULL);
353 gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item)
356 GdkColormap *colormap;
357 GtkTreePixmaps *pixmap_node = NULL;
359 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
361 if (tree_item->pixmaps)
364 colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_item));
369 pixmap_node = (GtkTreePixmaps *)tmp_list->data;
371 if (pixmap_node->colormap == colormap)
374 tmp_list = tmp_list->next;
379 pixmap_node->refcount++;
380 tree_item->pixmaps = tmp_list;
384 pixmap_node = g_new (GtkTreePixmaps, 1);
386 pixmap_node->colormap = colormap;
387 g_object_ref (colormap);
389 pixmap_node->refcount = 1;
391 /* create pixmaps for plus icon */
392 pixmap_node->pixmap_plus =
393 gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
394 &pixmap_node->mask_plus,
396 (gchar **)tree_plus);
398 /* create pixmaps for minus icon */
399 pixmap_node->pixmap_minus =
400 gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
401 &pixmap_node->mask_minus,
403 (gchar **)tree_minus);
405 tree_item->pixmaps = pixmaps = g_list_prepend (pixmaps, pixmap_node);
408 gtk_pixmap_set (GTK_PIXMAP (tree_item->plus_pix_widget),
409 pixmap_node->pixmap_plus, pixmap_node->mask_plus);
410 gtk_pixmap_set (GTK_PIXMAP (tree_item->minus_pix_widget),
411 pixmap_node->pixmap_minus, pixmap_node->mask_minus);
415 gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item)
417 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
419 if (tree_item->pixmaps)
421 GtkTreePixmaps *pixmap_node = (GtkTreePixmaps *)tree_item->pixmaps->data;
423 g_assert (pixmap_node->refcount > 0);
425 if (--pixmap_node->refcount == 0)
427 g_object_unref (pixmap_node->colormap);
428 g_object_unref (pixmap_node->pixmap_plus);
429 g_object_unref (pixmap_node->mask_plus);
430 g_object_unref (pixmap_node->pixmap_minus);
431 g_object_unref (pixmap_node->mask_minus);
433 pixmaps = g_list_remove_link (pixmaps, tree_item->pixmaps);
434 g_list_free_1 (tree_item->pixmaps);
435 g_free (pixmap_node);
438 tree_item->pixmaps = NULL;
443 gtk_tree_item_realize (GtkWidget *widget)
445 if (GTK_WIDGET_CLASS (parent_class)->realize)
446 (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
448 gdk_window_set_background (widget->window,
449 &widget->style->base[GTK_STATE_NORMAL]);
451 gtk_tree_item_add_pixmaps (GTK_TREE_ITEM (widget));
455 gtk_tree_item_size_request (GtkWidget *widget,
456 GtkRequisition *requisition)
458 GtkBin *bin = GTK_BIN (widget);
459 GtkTreeItem *item = GTK_TREE_ITEM (widget);
460 GtkRequisition child_requisition;
462 requisition->width = (GTK_CONTAINER (widget)->border_width +
463 widget->style->xthickness) * 2;
464 requisition->height = GTK_CONTAINER (widget)->border_width * 2;
466 if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
468 GtkRequisition pix_requisition;
470 gtk_widget_size_request (bin->child, &child_requisition);
472 requisition->width += child_requisition.width;
474 gtk_widget_size_request (item->pixmaps_box,
476 requisition->width += pix_requisition.width + DEFAULT_DELTA +
477 GTK_TREE (widget->parent)->current_indent;
479 requisition->height += MAX (child_requisition.height,
480 pix_requisition.height);
485 gtk_tree_item_size_allocate (GtkWidget *widget,
486 GtkAllocation *allocation)
488 GtkBin *bin = GTK_BIN (widget);
489 GtkTreeItem *item = GTK_TREE_ITEM (widget);
490 GtkAllocation child_allocation;
494 widget->allocation = *allocation;
495 if (GTK_WIDGET_REALIZED (widget))
496 gdk_window_move_resize (widget->window,
497 allocation->x, allocation->y,
498 allocation->width, allocation->height);
502 border_width = (GTK_CONTAINER (widget)->border_width +
503 widget->style->xthickness);
505 child_allocation.x = border_width + GTK_TREE(widget->parent)->current_indent;
506 child_allocation.y = GTK_CONTAINER (widget)->border_width;
508 child_allocation.width = item->pixmaps_box->requisition.width;
509 child_allocation.height = item->pixmaps_box->requisition.height;
511 temp = allocation->height - child_allocation.height;
512 child_allocation.y += ( temp / 2 ) + ( temp % 2 );
514 gtk_widget_size_allocate (item->pixmaps_box, &child_allocation);
516 child_allocation.y = GTK_CONTAINER (widget)->border_width;
517 child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
518 child_allocation.x += item->pixmaps_box->requisition.width+DEFAULT_DELTA;
520 child_allocation.width =
521 MAX (1, (gint)allocation->width - ((gint)child_allocation.x + border_width));
523 gtk_widget_size_allocate (bin->child, &child_allocation);
528 gtk_tree_item_draw_lines (GtkWidget *widget)
532 guint lx1, ly1, lx2, ly2;
535 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
537 item = GTK_TREE_ITEM(widget);
538 tree = GTK_TREE(widget->parent);
540 if (!tree->view_line)
543 gc = widget->style->text_gc[GTK_STATE_NORMAL];
545 /* draw vertical line */
546 lx1 = item->pixmaps_box->allocation.width;
547 lx1 = lx2 = ((lx1 / 2) + (lx1 % 2) +
548 GTK_CONTAINER (widget)->border_width + 1 + tree->current_indent);
550 ly2 = widget->allocation.height;
552 if (g_list_last (tree->children)->data == widget)
553 ly2 = (ly2 / 2) + (ly2 % 2);
555 if (tree != tree->root_tree)
556 gdk_draw_line (widget->window, gc, lx1, ly1, lx2, ly2);
558 /* draw vertical line for subtree connecting */
559 if(g_list_last(tree->children)->data != (gpointer)widget)
560 ly2 = (ly2 / 2) + (ly2 % 2);
562 lx2 += DEFAULT_DELTA;
564 if (item->subtree && item->expanded)
565 gdk_draw_line (widget->window, gc,
566 lx2, ly2, lx2, widget->allocation.height);
568 /* draw horizontal line */
572 gdk_draw_line (widget->window, gc, lx1, ly1, lx2, ly2);
574 lx2 -= DEFAULT_DELTA+2;
576 ly2 = widget->allocation.height;
578 if (tree != tree->root_tree)
580 item = GTK_TREE_ITEM (tree->tree_owner);
581 tree = GTK_TREE (GTK_WIDGET (tree)->parent);
582 while (tree != tree->root_tree)
584 lx1 = lx2 -= tree->indent_value;
586 if (g_list_last (tree->children)->data != item)
587 gdk_draw_line (widget->window, gc, lx1, ly1, lx2, ly2);
588 item = GTK_TREE_ITEM (tree->tree_owner);
589 tree = GTK_TREE (GTK_WIDGET (tree)->parent);
595 gtk_tree_item_paint (GtkWidget *widget,
598 GdkRectangle child_area, item_area;
599 GtkTreeItem* tree_item;
601 /* FIXME: We should honor tree->view_mode, here - I think
602 * the desired effect is that when the mode is VIEW_ITEM,
603 * only the subitem is drawn as selected, not the entire
604 * line. (Like the way that the tree in Windows Explorer
607 if (GTK_WIDGET_DRAWABLE (widget))
609 tree_item = GTK_TREE_ITEM(widget);
611 if (widget->state == GTK_STATE_NORMAL)
613 gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
614 gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
618 if (!GTK_WIDGET_IS_SENSITIVE (widget))
619 gtk_paint_flat_box(widget->style, widget->window,
620 widget->state, GTK_SHADOW_NONE,
621 area, widget, "treeitem",
624 gtk_paint_flat_box(widget->style, widget->window,
625 widget->state, GTK_SHADOW_ETCHED_OUT,
626 area, widget, "treeitem",
630 /* draw left size of tree item */
633 item_area.width = (tree_item->pixmaps_box->allocation.width + DEFAULT_DELTA +
634 GTK_TREE (widget->parent)->current_indent + 2);
635 item_area.height = widget->allocation.height;
638 if (gdk_rectangle_intersect(&item_area, area, &child_area))
641 gtk_tree_item_draw_lines(widget);
643 if (tree_item->pixmaps_box &&
644 GTK_WIDGET_VISIBLE(tree_item->pixmaps_box) &&
645 gtk_widget_intersect (tree_item->pixmaps_box, area, &child_area))
646 gtk_widget_draw (tree_item->pixmaps_box, &child_area);
649 if (GTK_WIDGET_HAS_FOCUS (widget))
650 gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
651 NULL, widget, "treeitem",
653 widget->allocation.width,
654 widget->allocation.height);
660 gtk_tree_item_button_press (GtkWidget *widget,
661 GdkEventButton *event)
663 if (event->type == GDK_BUTTON_PRESS
664 && GTK_WIDGET_IS_SENSITIVE(widget)
665 && !GTK_WIDGET_HAS_FOCUS (widget))
666 gtk_widget_grab_focus (widget);
668 return (event->type == GDK_BUTTON_PRESS && GTK_WIDGET_IS_SENSITIVE(widget));
672 gtk_tree_item_expose_child (GtkWidget *child,
673 gpointer client_data)
676 GtkWidget *container;
677 GdkEventExpose *event;
678 } *data = client_data;
680 if (GTK_WIDGET_DRAWABLE (child) &&
681 GTK_WIDGET_NO_WINDOW (child) &&
682 (child->window == data->event->window))
684 GdkEvent *child_event = gdk_event_new (GDK_EXPOSE);
685 child_event->expose = *data->event;
686 g_object_ref (child_event->expose.window);
688 child_event->expose.region = gtk_widget_region_intersect (child,
689 data->event->region);
690 if (!gdk_region_empty (child_event->expose.region))
692 gdk_region_get_clipbox (child_event->expose.region, &child_event->expose.area);
693 gtk_widget_send_expose (child, child_event);
695 gdk_event_free (child_event);
700 gtk_tree_item_expose (GtkWidget *widget,
701 GdkEventExpose *event)
704 GtkWidget *container;
705 GdkEventExpose *event;
708 if (GTK_WIDGET_DRAWABLE (widget))
710 gtk_tree_item_paint (widget, &event->area);
712 data.container = widget;
715 gtk_container_forall (GTK_CONTAINER (widget),
716 gtk_tree_item_expose_child,
724 gtk_real_tree_item_select (GtkItem *item)
728 g_return_if_fail (GTK_IS_TREE_ITEM (item));
730 widget = GTK_WIDGET (item);
732 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
734 if (!widget->parent || GTK_TREE (widget->parent)->view_mode == GTK_TREE_VIEW_LINE)
735 gtk_widget_set_state (GTK_TREE_ITEM (item)->pixmaps_box, GTK_STATE_SELECTED);
739 gtk_real_tree_item_deselect (GtkItem *item)
741 GtkTreeItem *tree_item;
744 g_return_if_fail (GTK_IS_TREE_ITEM (item));
746 tree_item = GTK_TREE_ITEM (item);
747 widget = GTK_WIDGET (item);
749 gtk_widget_set_state (widget, GTK_STATE_NORMAL);
751 if (!widget->parent || GTK_TREE (widget->parent)->view_mode == GTK_TREE_VIEW_LINE)
752 gtk_widget_set_state (tree_item->pixmaps_box, GTK_STATE_NORMAL);
756 gtk_real_tree_item_toggle (GtkItem *item)
758 g_return_if_fail (GTK_IS_TREE_ITEM (item));
760 if(!GTK_WIDGET_IS_SENSITIVE(item))
763 if (GTK_IS_TREE (GTK_WIDGET (item)->parent))
764 gtk_tree_select_child (GTK_TREE (GTK_WIDGET (item)->parent),
768 /* Should we really bother with this bit? A listitem not in a list?
769 * -Johannes Keukelaar
770 * yes, always be on the safe side!
773 if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED)
774 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
776 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
781 gtk_real_tree_item_expand (GtkTreeItem *tree_item)
785 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
787 if (tree_item->subtree && !tree_item->expanded)
789 tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
791 /* hide subtree widget */
792 gtk_widget_show (tree_item->subtree);
794 /* hide button '+' and show button '-' */
795 if (tree_item->pixmaps_box)
797 gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
798 tree_item->plus_pix_widget);
799 gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
800 tree_item->minus_pix_widget);
803 gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
804 tree_item->expanded = TRUE;
809 gtk_real_tree_item_collapse (GtkTreeItem *tree_item)
813 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
815 if (tree_item->subtree && tree_item->expanded)
817 tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
819 /* hide subtree widget */
820 gtk_widget_hide (tree_item->subtree);
822 /* hide button '-' and show button '+' */
823 if (tree_item->pixmaps_box)
825 gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
826 tree_item->minus_pix_widget);
827 gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
828 tree_item->plus_pix_widget);
831 gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
832 tree_item->expanded = FALSE;
837 gtk_tree_item_destroy (GtkObject *object)
839 GtkTreeItem* item = GTK_TREE_ITEM(object);
843 g_message("+ gtk_tree_item_destroy [object %#x]\n", (int)object);
844 #endif /* TREE_DEBUG */
846 /* free sub tree if it exist */
847 child = item->subtree;
850 gtk_widget_ref (child);
851 gtk_widget_unparent (child);
852 gtk_widget_destroy (child);
853 g_object_unref (child);
854 item->subtree = NULL;
857 /* free pixmaps box */
858 child = item->pixmaps_box;
861 gtk_widget_ref (child);
862 gtk_widget_unparent (child);
863 gtk_widget_destroy (child);
864 g_object_unref (child);
865 item->pixmaps_box = NULL;
869 /* destroy plus pixmap */
870 if (item->plus_pix_widget)
872 gtk_widget_destroy (item->plus_pix_widget);
873 g_object_unref (item->plus_pix_widget);
874 item->plus_pix_widget = NULL;
877 /* destroy minus pixmap */
878 if (item->minus_pix_widget)
880 gtk_widget_destroy (item->minus_pix_widget);
881 g_object_unref (item->minus_pix_widget);
882 item->minus_pix_widget = NULL;
885 /* By removing the pixmaps here, and not in unrealize, we depend on
886 * the fact that a widget can never change colormap or visual.
888 gtk_tree_item_remove_pixmaps (item);
890 GTK_OBJECT_CLASS (parent_class)->destroy (object);
893 g_message("- gtk_tree_item_destroy\n");
894 #endif /* TREE_DEBUG */
898 gtk_tree_item_remove_subtree (GtkTreeItem* item)
900 g_return_if_fail (GTK_IS_TREE_ITEM(item));
901 g_return_if_fail (item->subtree != NULL);
903 if (GTK_TREE (item->subtree)->children)
905 /* The following call will remove the children and call
906 * gtk_tree_item_remove_subtree() again. So we are done.
908 gtk_tree_remove_items (GTK_TREE (item->subtree),
909 GTK_TREE (item->subtree)->children);
913 if (GTK_WIDGET_MAPPED (item->subtree))
914 gtk_widget_unmap (item->subtree);
916 gtk_widget_unparent (item->subtree);
918 if (item->pixmaps_box)
919 gtk_widget_hide (item->pixmaps_box);
921 item->subtree = NULL;
925 item->expanded = FALSE;
926 if (item->pixmaps_box)
928 gtk_container_remove (GTK_CONTAINER (item->pixmaps_box),
929 item->minus_pix_widget);
930 gtk_container_add (GTK_CONTAINER (item->pixmaps_box),
931 item->plus_pix_widget);
937 gtk_tree_item_map (GtkWidget *widget)
939 GtkBin *bin = GTK_BIN (widget);
940 GtkTreeItem* item = GTK_TREE_ITEM(widget);
942 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
944 if(item->pixmaps_box &&
945 GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
946 !GTK_WIDGET_MAPPED (item->pixmaps_box))
947 gtk_widget_map (item->pixmaps_box);
950 GTK_WIDGET_VISIBLE (bin->child) &&
951 !GTK_WIDGET_MAPPED (bin->child))
952 gtk_widget_map (bin->child);
954 gdk_window_show (widget->window);
958 gtk_tree_item_unmap (GtkWidget *widget)
960 GtkBin *bin = GTK_BIN (widget);
961 GtkTreeItem* item = GTK_TREE_ITEM(widget);
963 GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
965 gdk_window_hide (widget->window);
967 if(item->pixmaps_box &&
968 GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
969 GTK_WIDGET_MAPPED (item->pixmaps_box))
970 gtk_widget_unmap (bin->child);
973 GTK_WIDGET_VISIBLE (bin->child) &&
974 GTK_WIDGET_MAPPED (bin->child))
975 gtk_widget_unmap (bin->child);
979 gtk_tree_item_forall (GtkContainer *container,
980 gboolean include_internals,
981 GtkCallback callback,
982 gpointer callback_data)
984 GtkBin *bin = GTK_BIN (container);
985 GtkTreeItem *tree_item = GTK_TREE_ITEM (container);
988 (* callback) (bin->child, callback_data);
989 if (include_internals && tree_item->subtree)
990 (* callback) (tree_item->subtree, callback_data);
991 if (include_internals && tree_item->pixmaps_box)
992 (* callback) (tree_item->pixmaps_box, callback_data);
995 #define __GTK_TREE_ITEM_C__
996 #include "gtkaliasdef.c"