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 Library 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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library 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 #include "gtktreeitem.h"
22 #include "gtkeventbox.h"
23 #include "gtkpixmap.h"
25 #include "gtksignal.h"
27 #include "tree_plus.xpm"
28 #include "tree_minus.xpm"
30 #define DEFAULT_DELTA 9
38 typedef struct _GtkTreePixmaps GtkTreePixmaps;
40 struct _GtkTreePixmaps {
42 GdkColormap *colormap;
44 GdkPixmap *pixmap_plus;
45 GdkPixmap *pixmap_minus;
47 GdkBitmap *mask_minus;
50 static GList *pixmaps = NULL;
52 static void gtk_tree_item_class_init (GtkTreeItemClass *klass);
53 static void gtk_tree_item_init (GtkTreeItem *tree_item);
54 static void gtk_tree_item_realize (GtkWidget *widget);
55 static void gtk_tree_item_size_request (GtkWidget *widget,
56 GtkRequisition *requisition);
57 static void gtk_tree_item_size_allocate (GtkWidget *widget,
58 GtkAllocation *allocation);
59 static void gtk_tree_item_draw (GtkWidget *widget,
61 static void gtk_tree_item_draw_focus (GtkWidget *widget);
62 static gint gtk_tree_item_button_press (GtkWidget *widget,
63 GdkEventButton *event);
64 static gint gtk_tree_item_expose (GtkWidget *widget,
65 GdkEventExpose *event);
66 static gint gtk_tree_item_focus_in (GtkWidget *widget,
67 GdkEventFocus *event);
68 static gint gtk_tree_item_focus_out (GtkWidget *widget,
69 GdkEventFocus *event);
70 static void gtk_tree_item_forall (GtkContainer *container,
71 gboolean include_internals,
73 gpointer callback_data);
75 static void gtk_real_tree_item_select (GtkItem *item);
76 static void gtk_real_tree_item_deselect (GtkItem *item);
77 static void gtk_real_tree_item_toggle (GtkItem *item);
78 static void gtk_real_tree_item_expand (GtkTreeItem *item);
79 static void gtk_real_tree_item_collapse (GtkTreeItem *item);
80 static void gtk_real_tree_item_expand (GtkTreeItem *item);
81 static void gtk_real_tree_item_collapse (GtkTreeItem *item);
82 static void gtk_tree_item_destroy (GtkObject *object);
83 static void gtk_tree_item_subtree_button_click (GtkWidget *widget);
84 static void gtk_tree_item_subtree_button_changed_state (GtkWidget *widget);
86 static void gtk_tree_item_map(GtkWidget*);
87 static void gtk_tree_item_unmap(GtkWidget*);
89 static void gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item);
90 static void gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item);
92 static GtkItemClass *parent_class = NULL;
93 static guint tree_item_signals[LAST_SIGNAL] = { 0 };
96 gtk_tree_item_get_type (void)
98 static GtkType tree_item_type = 0;
102 GtkTypeInfo tree_item_info =
105 sizeof (GtkTreeItem),
106 sizeof (GtkTreeItemClass),
107 (GtkClassInitFunc) gtk_tree_item_class_init,
108 (GtkObjectInitFunc) gtk_tree_item_init,
109 /* reserved_1 */ NULL,
110 /* reserved_2 */ NULL,
111 (GtkClassInitFunc) NULL,
114 tree_item_type = gtk_type_unique (gtk_item_get_type (), &tree_item_info);
117 return tree_item_type;
121 gtk_tree_item_class_init (GtkTreeItemClass *class)
123 GtkObjectClass *object_class;
124 GtkWidgetClass *widget_class;
125 GtkContainerClass *container_class;
126 GtkItemClass *item_class;
128 object_class = (GtkObjectClass*) class;
129 widget_class = (GtkWidgetClass*) class;
130 item_class = (GtkItemClass*) class;
131 container_class = (GtkContainerClass*) class;
133 parent_class = gtk_type_class (gtk_item_get_type ());
135 tree_item_signals[EXPAND_TREE] =
136 gtk_signal_new ("expand",
139 GTK_SIGNAL_OFFSET (GtkTreeItemClass, expand),
140 gtk_marshal_NONE__NONE,
142 tree_item_signals[COLLAPSE_TREE] =
143 gtk_signal_new ("collapse",
146 GTK_SIGNAL_OFFSET (GtkTreeItemClass, collapse),
147 gtk_marshal_NONE__NONE,
150 gtk_object_class_add_signals (object_class, tree_item_signals, LAST_SIGNAL);
152 object_class->destroy = gtk_tree_item_destroy;
154 widget_class->realize = gtk_tree_item_realize;
155 widget_class->size_request = gtk_tree_item_size_request;
156 widget_class->size_allocate = gtk_tree_item_size_allocate;
157 widget_class->draw = gtk_tree_item_draw;
158 widget_class->draw_focus = gtk_tree_item_draw_focus;
159 widget_class->button_press_event = gtk_tree_item_button_press;
160 widget_class->expose_event = gtk_tree_item_expose;
161 widget_class->focus_in_event = gtk_tree_item_focus_in;
162 widget_class->focus_out_event = gtk_tree_item_focus_out;
163 widget_class->map = gtk_tree_item_map;
164 widget_class->unmap = gtk_tree_item_unmap;
166 container_class->forall = gtk_tree_item_forall;
168 item_class->select = gtk_real_tree_item_select;
169 item_class->deselect = gtk_real_tree_item_deselect;
170 item_class->toggle = gtk_real_tree_item_toggle;
172 class->expand = gtk_real_tree_item_expand;
173 class->collapse = gtk_real_tree_item_collapse;
176 /* callback for event box mouse event */
178 gtk_tree_item_subtree_button_click (GtkWidget *widget)
182 g_return_if_fail (widget != NULL);
183 g_return_if_fail (GTK_IS_EVENT_BOX (widget));
185 item = (GtkTreeItem*) gtk_object_get_user_data (GTK_OBJECT (widget));
186 if (!GTK_WIDGET_IS_SENSITIVE (item))
190 gtk_tree_item_collapse (item);
192 gtk_tree_item_expand (item);
195 /* callback for event box state changed */
197 gtk_tree_item_subtree_button_changed_state (GtkWidget *widget)
199 g_return_if_fail (widget != NULL);
200 g_return_if_fail (GTK_IS_EVENT_BOX (widget));
202 if (GTK_WIDGET_VISIBLE (widget))
205 if (widget->state == GTK_STATE_NORMAL)
206 gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
208 gdk_window_set_background (widget->window, &widget->style->bg[widget->state]);
210 if (GTK_WIDGET_DRAWABLE (widget))
211 gdk_window_clear_area (widget->window, 0, 0,
212 widget->allocation.width, widget->allocation.height);
217 gtk_tree_item_init (GtkTreeItem *tree_item)
219 GtkWidget *eventbox, *pixmapwid;
221 g_return_if_fail (tree_item != NULL);
222 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
224 tree_item->expanded = FALSE;
225 tree_item->subtree = NULL;
226 GTK_WIDGET_SET_FLAGS (tree_item, GTK_CAN_FOCUS);
228 /* create an event box containing one pixmaps */
229 eventbox = gtk_event_box_new();
230 gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK);
231 gtk_signal_connect(GTK_OBJECT(eventbox), "state_changed",
232 (GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
234 gtk_signal_connect(GTK_OBJECT(eventbox), "realize",
235 (GtkSignalFunc)gtk_tree_item_subtree_button_changed_state,
237 gtk_signal_connect(GTK_OBJECT(eventbox), "button_press_event",
238 (GtkSignalFunc)gtk_tree_item_subtree_button_click,
240 gtk_object_set_user_data(GTK_OBJECT(eventbox), tree_item);
241 tree_item->pixmaps_box = eventbox;
243 /* create pixmap for button '+' */
244 pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
245 if (!tree_item->expanded)
246 gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
247 gtk_widget_show (pixmapwid);
248 tree_item->plus_pix_widget = pixmapwid;
249 gtk_widget_ref (tree_item->plus_pix_widget);
250 gtk_object_sink (GTK_OBJECT (tree_item->plus_pix_widget));
252 /* create pixmap for button '-' */
253 pixmapwid = gtk_type_new (gtk_pixmap_get_type ());
254 if (tree_item->expanded)
255 gtk_container_add (GTK_CONTAINER (eventbox), pixmapwid);
256 gtk_widget_show (pixmapwid);
257 tree_item->minus_pix_widget = pixmapwid;
258 gtk_widget_ref (tree_item->minus_pix_widget);
259 gtk_object_sink (GTK_OBJECT (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 (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 (tree_item != NULL);
297 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
298 g_return_if_fail (subtree != NULL);
299 g_return_if_fail (GTK_IS_TREE (subtree));
301 if(tree_item->subtree) {
302 g_warning("there is already a subtree for this tree item\n");
306 tree_item->subtree = subtree;
307 GTK_TREE(subtree)->tree_owner = GTK_WIDGET(tree_item);
309 /* show subtree button */
310 if (tree_item->pixmaps_box)
311 gtk_widget_show (tree_item->pixmaps_box);
313 /* set parent widget */
314 gtk_widget_set_parent(subtree, GTK_WIDGET(tree_item)->parent);
316 if(GTK_WIDGET_VISIBLE(GTK_WIDGET(tree_item)))
318 if(GTK_WIDGET_REALIZED (GTK_WIDGET(tree_item)) &&
319 !GTK_WIDGET_REALIZED (GTK_WIDGET(subtree)))
320 gtk_widget_realize (GTK_WIDGET(subtree));
322 if(GTK_WIDGET_MAPPED (GTK_WIDGET(tree_item)) &&
323 !GTK_WIDGET_MAPPED (GTK_WIDGET(subtree)))
324 gtk_widget_map (GTK_WIDGET(subtree));
327 if (tree_item->expanded)
328 gtk_widget_show(subtree);
330 gtk_widget_hide(subtree);
332 if (GTK_WIDGET_VISIBLE (tree_item) && GTK_WIDGET_VISIBLE (tree_item))
333 gtk_widget_queue_resize (GTK_WIDGET(tree_item));
338 gtk_tree_item_select (GtkTreeItem *tree_item)
340 g_return_if_fail (tree_item != NULL);
341 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
343 gtk_item_select (GTK_ITEM (tree_item));
347 gtk_tree_item_deselect (GtkTreeItem *tree_item)
349 g_return_if_fail (tree_item != NULL);
350 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
352 gtk_item_deselect (GTK_ITEM (tree_item));
356 gtk_tree_item_expand (GtkTreeItem *tree_item)
358 g_return_if_fail (tree_item != NULL);
359 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
361 gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[EXPAND_TREE], NULL);
365 gtk_tree_item_collapse (GtkTreeItem *tree_item)
367 g_return_if_fail (tree_item != NULL);
368 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
370 gtk_signal_emit (GTK_OBJECT (tree_item), tree_item_signals[COLLAPSE_TREE], NULL);
374 gtk_tree_item_add_pixmaps (GtkTreeItem *tree_item)
377 GdkColormap *colormap;
378 GtkTreePixmaps *pixmap_node = NULL;
380 g_return_if_fail (tree_item != NULL);
381 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
383 if (tree_item->pixmaps)
386 colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_item));
391 pixmap_node = (GtkTreePixmaps *)tmp_list->data;
393 if (pixmap_node->colormap == colormap)
396 tmp_list = tmp_list->next;
401 pixmap_node->refcount++;
402 tree_item->pixmaps = tmp_list;
406 pixmap_node = g_new (GtkTreePixmaps, 1);
408 pixmap_node->colormap = colormap;
409 gdk_colormap_ref (colormap);
411 pixmap_node->refcount = 1;
413 /* create pixmaps for plus icon */
414 pixmap_node->pixmap_plus =
415 gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
416 &pixmap_node->mask_plus,
420 /* create pixmaps for minus icon */
421 pixmap_node->pixmap_minus =
422 gdk_pixmap_create_from_xpm_d (GTK_WIDGET (tree_item)->window,
423 &pixmap_node->mask_minus,
427 tree_item->pixmaps = pixmaps = g_list_prepend (pixmaps, pixmap_node);
430 gtk_pixmap_set (GTK_PIXMAP (tree_item->plus_pix_widget),
431 pixmap_node->pixmap_plus, pixmap_node->mask_plus);
432 gtk_pixmap_set (GTK_PIXMAP (tree_item->minus_pix_widget),
433 pixmap_node->pixmap_minus, pixmap_node->mask_minus);
437 gtk_tree_item_remove_pixmaps (GtkTreeItem *tree_item)
439 g_return_if_fail (tree_item != NULL);
440 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
442 if (tree_item->pixmaps)
444 GtkTreePixmaps *pixmap_node = (GtkTreePixmaps *)tree_item->pixmaps->data;
446 g_assert (pixmap_node->refcount > 0);
448 if (--pixmap_node->refcount == 0)
450 gdk_colormap_unref (pixmap_node->colormap);
451 gdk_pixmap_unref (pixmap_node->pixmap_plus);
452 gdk_bitmap_unref (pixmap_node->mask_plus);
453 gdk_pixmap_unref (pixmap_node->pixmap_minus);
454 gdk_bitmap_unref (pixmap_node->mask_minus);
456 pixmaps = g_list_remove_link (pixmaps, tree_item->pixmaps);
457 g_list_free_1 (tree_item->pixmaps);
458 g_free (pixmap_node);
461 tree_item->pixmaps = NULL;
466 gtk_tree_item_realize (GtkWidget *widget)
468 g_return_if_fail (widget != NULL);
469 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
471 if (GTK_WIDGET_CLASS (parent_class)->realize)
472 (* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
474 gdk_window_set_background (widget->window,
475 &widget->style->base[GTK_STATE_NORMAL]);
477 gtk_tree_item_add_pixmaps (GTK_TREE_ITEM (widget));
481 gtk_tree_item_size_request (GtkWidget *widget,
482 GtkRequisition *requisition)
487 g_return_if_fail (widget != NULL);
488 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
489 g_return_if_fail (requisition != NULL);
491 bin = GTK_BIN (widget);
492 item = GTK_TREE_ITEM(widget);
494 requisition->width = (GTK_CONTAINER (widget)->border_width +
495 widget->style->klass->xthickness) * 2;
496 requisition->height = GTK_CONTAINER (widget)->border_width * 2;
498 if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
500 gtk_widget_size_request (bin->child, &bin->child->requisition);
502 requisition->width += bin->child->requisition.width;
504 gtk_widget_size_request (item->pixmaps_box,
505 &item->pixmaps_box->requisition);
506 requisition->width += item->pixmaps_box->requisition.width + DEFAULT_DELTA +
507 GTK_TREE(widget->parent)->current_indent;
509 requisition->height += MAX (bin->child->requisition.height,
510 item->pixmaps_box->requisition.height);
515 gtk_tree_item_size_allocate (GtkWidget *widget,
516 GtkAllocation *allocation)
520 GtkAllocation child_allocation;
524 g_return_if_fail (widget != NULL);
525 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
526 g_return_if_fail (allocation != NULL);
528 widget->allocation = *allocation;
529 if (GTK_WIDGET_REALIZED (widget))
530 gdk_window_move_resize (widget->window,
531 allocation->x, allocation->y,
532 allocation->width, allocation->height);
534 bin = GTK_BIN (widget);
535 item = GTK_TREE_ITEM(widget);
539 border_width = (GTK_CONTAINER (widget)->border_width +
540 widget->style->klass->xthickness);
542 child_allocation.x = border_width + GTK_TREE(widget->parent)->current_indent;
543 child_allocation.y = GTK_CONTAINER (widget)->border_width;
545 child_allocation.width = item->pixmaps_box->requisition.width;
546 child_allocation.height = item->pixmaps_box->requisition.height;
548 temp = allocation->height - child_allocation.height;
549 child_allocation.y += ( temp / 2 ) + ( temp % 2 );
551 gtk_widget_size_allocate (item->pixmaps_box, &child_allocation);
553 child_allocation.y = GTK_CONTAINER (widget)->border_width;
554 child_allocation.height = MAX (1, allocation->height - child_allocation.y * 2);
555 child_allocation.x += item->pixmaps_box->requisition.width+DEFAULT_DELTA;
557 child_allocation.width =
558 MAX (1, allocation->width - (child_allocation.x + border_width));
560 gtk_widget_size_allocate (bin->child, &child_allocation);
565 gtk_tree_item_draw_lines (GtkWidget *widget)
569 guint lx1, ly1, lx2, ly2;
571 g_return_if_fail (widget != NULL);
572 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
574 item = GTK_TREE_ITEM(widget);
575 tree = GTK_TREE(widget->parent);
577 /* draw vertical line */
578 lx1 = item->pixmaps_box->allocation.width;
579 lx1 = lx2 = ((lx1 / 2) + (lx1 % 2) +
580 GTK_CONTAINER (widget)->border_width + 1 + tree->current_indent);
582 ly2 = widget->allocation.height;
584 if (g_list_last (tree->children)->data == widget)
585 ly2 = (ly2 / 2) + (ly2 % 2);
587 if (tree != tree->root_tree)
588 gdk_draw_line (widget->window, widget->style->black_gc, lx1, ly1, lx2, ly2);
590 /* draw vertical line for subtree connecting */
591 if(g_list_last(tree->children)->data != (gpointer)widget)
592 ly2 = (ly2 / 2) + (ly2 % 2);
594 lx2 += DEFAULT_DELTA;
596 if (item->subtree && item->expanded)
597 gdk_draw_line (widget->window, widget->style->black_gc,
598 lx2, ly2, lx2, widget->allocation.height);
600 /* draw horizontal line */
604 gdk_draw_line (widget->window, widget->style->black_gc,
607 lx2 -= DEFAULT_DELTA+2;
609 ly2 = widget->allocation.height;
611 if (tree != tree->root_tree)
613 item = GTK_TREE_ITEM (tree->tree_owner);
614 tree = GTK_TREE (GTK_WIDGET (tree)->parent);
615 while (tree != tree->root_tree)
617 lx1 = lx2 -= tree->indent_value;
619 if (g_list_last (tree->children)->data != item)
620 gdk_draw_line (widget->window, widget->style->black_gc, lx1, ly1, lx2, ly2);
621 item = GTK_TREE_ITEM (tree->tree_owner);
622 tree = GTK_TREE (GTK_WIDGET (tree)->parent);
628 gtk_tree_item_draw (GtkWidget *widget,
632 GdkRectangle child_area, item_area;
633 GtkTreeItem* tree_item;
635 g_return_if_fail (widget != NULL);
636 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
637 g_return_if_fail (area != NULL);
639 if (GTK_WIDGET_DRAWABLE (widget))
641 bin = GTK_BIN (widget);
642 tree_item = GTK_TREE_ITEM(widget);
644 /* draw left size of tree item */
647 item_area.width = (tree_item->pixmaps_box->allocation.width + DEFAULT_DELTA +
648 GTK_TREE (widget->parent)->current_indent + 2);
649 item_area.height = widget->allocation.height;
651 if (gdk_rectangle_intersect(&item_area, area, &child_area))
653 if (widget->state == GTK_STATE_NORMAL)
655 gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
656 gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height);
660 if (!GTK_WIDGET_IS_SENSITIVE (widget))
661 gtk_paint_flat_box(widget->style, widget->window,
662 widget->state, GTK_STATE_INSENSITIVE,
663 area, widget, "treeitem",
666 gtk_paint_flat_box(widget->style, widget->window,
667 widget->state, GTK_SHADOW_ETCHED_OUT,
668 area, widget, "treeitem",
672 gtk_tree_item_draw_lines(widget);
674 if (tree_item->pixmaps_box &&
675 GTK_WIDGET_VISIBLE(tree_item->pixmaps_box) &&
676 gtk_widget_intersect (tree_item->pixmaps_box, area, &child_area))
677 gtk_widget_draw (tree_item->pixmaps_box, &child_area);
680 /* draw right side */
681 if (gtk_widget_intersect (bin->child, area, &child_area))
684 GTK_WIDGET_VISIBLE(bin->child) &&
685 gtk_widget_intersect (bin->child, area, &child_area))
686 gtk_widget_draw (bin->child, &child_area);
689 if (GTK_WIDGET_HAS_FOCUS (widget))
690 gtk_paint_focus (widget->style, widget->window,
691 NULL, widget, "treeitem",
693 widget->allocation.width - 1,
694 widget->allocation.height - 1);
700 gtk_tree_item_draw_focus (GtkWidget *widget)
702 g_return_if_fail (widget != NULL);
703 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
705 gtk_widget_draw(widget, NULL);
709 gtk_tree_item_button_press (GtkWidget *widget,
710 GdkEventButton *event)
713 g_return_val_if_fail (widget != NULL, FALSE);
714 g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
715 g_return_val_if_fail (event != NULL, FALSE);
717 if (event->type == GDK_BUTTON_PRESS
718 && GTK_WIDGET_IS_SENSITIVE(widget)
719 && !GTK_WIDGET_HAS_FOCUS (widget))
720 gtk_widget_grab_focus (widget);
726 gtk_tree_item_expose (GtkWidget *widget,
727 GdkEventExpose *event)
729 g_return_val_if_fail (widget != NULL, FALSE);
730 g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
731 g_return_val_if_fail (event != NULL, FALSE);
733 if (GTK_WIDGET_DRAWABLE (widget))
734 gtk_tree_item_draw(widget, &event->area);
740 gtk_tree_item_focus_in (GtkWidget *widget,
741 GdkEventFocus *event)
743 g_return_val_if_fail (widget != NULL, FALSE);
744 g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
745 g_return_val_if_fail (event != NULL, FALSE);
747 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
748 gtk_widget_draw_focus (widget);
755 gtk_tree_item_focus_out (GtkWidget *widget,
756 GdkEventFocus *event)
758 g_return_val_if_fail (widget != NULL, FALSE);
759 g_return_val_if_fail (GTK_IS_TREE_ITEM (widget), FALSE);
760 g_return_val_if_fail (event != NULL, FALSE);
762 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
763 gtk_widget_draw_focus (widget);
770 gtk_real_tree_item_select (GtkItem *item)
772 GtkTreeItem *tree_item;
775 g_return_if_fail (item != NULL);
776 g_return_if_fail (GTK_IS_TREE_ITEM (item));
778 tree_item = GTK_TREE_ITEM (item);
779 widget = GTK_WIDGET (item);
781 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
783 if (!widget->parent || GTK_TREE (widget->parent)->view_mode == GTK_TREE_VIEW_LINE)
784 gtk_widget_set_state (GTK_TREE_ITEM (item)->pixmaps_box, GTK_STATE_SELECTED);
788 gtk_real_tree_item_deselect (GtkItem *item)
790 GtkTreeItem *tree_item;
793 g_return_if_fail (item != NULL);
794 g_return_if_fail (GTK_IS_TREE_ITEM (item));
796 tree_item = GTK_TREE_ITEM (item);
797 widget = GTK_WIDGET (item);
799 gtk_widget_set_state (widget, GTK_STATE_NORMAL);
801 if (!widget->parent || GTK_TREE (widget->parent)->view_mode == GTK_TREE_VIEW_LINE)
802 gtk_widget_set_state (tree_item->pixmaps_box, GTK_STATE_NORMAL);
806 gtk_real_tree_item_toggle (GtkItem *item)
808 g_return_if_fail (item != NULL);
809 g_return_if_fail (GTK_IS_TREE_ITEM (item));
811 if(!GTK_WIDGET_IS_SENSITIVE(item))
814 if (GTK_WIDGET (item)->parent && GTK_IS_TREE (GTK_WIDGET (item)->parent))
815 gtk_tree_select_child (GTK_TREE (GTK_WIDGET (item)->parent),
819 /* Should we really bother with this bit? A listitem not in a list?
820 * -Johannes Keukelaar
821 * yes, always be on the safe side!
824 if (GTK_WIDGET (item)->state == GTK_STATE_SELECTED)
825 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_NORMAL);
827 gtk_widget_set_state (GTK_WIDGET (item), GTK_STATE_SELECTED);
832 gtk_real_tree_item_expand (GtkTreeItem *tree_item)
836 g_return_if_fail (tree_item != NULL);
837 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
839 if (tree_item->subtree && !tree_item->expanded)
841 tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
843 /* hide subtree widget */
844 gtk_widget_show (tree_item->subtree);
846 /* hide button '+' and show button '-' */
847 if (tree_item->pixmaps_box)
849 gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
850 tree_item->plus_pix_widget);
851 gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
852 tree_item->minus_pix_widget);
855 gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
856 tree_item->expanded = TRUE;
861 gtk_real_tree_item_collapse (GtkTreeItem *tree_item)
865 g_return_if_fail (tree_item != NULL);
866 g_return_if_fail (GTK_IS_TREE_ITEM (tree_item));
868 if (tree_item->subtree && tree_item->expanded)
870 tree = GTK_TREE (GTK_WIDGET (tree_item)->parent);
872 /* hide subtree widget */
873 gtk_widget_hide (tree_item->subtree);
875 /* hide button '-' and show button '+' */
876 if (tree_item->pixmaps_box)
878 gtk_container_remove (GTK_CONTAINER (tree_item->pixmaps_box),
879 tree_item->minus_pix_widget);
880 gtk_container_add (GTK_CONTAINER (tree_item->pixmaps_box),
881 tree_item->plus_pix_widget);
884 gtk_widget_queue_resize (GTK_WIDGET (tree->root_tree));
885 tree_item->expanded = FALSE;
890 gtk_tree_item_destroy (GtkObject *object)
895 g_return_if_fail (object != NULL);
896 g_return_if_fail (GTK_IS_TREE_ITEM (object));
899 g_message("+ gtk_tree_item_destroy [object %#x]\n", (int)object);
900 #endif /* TREE_DEBUG */
902 item = GTK_TREE_ITEM(object);
904 /* free sub tree if it exist */
905 child = item->subtree;
908 gtk_widget_ref (child);
909 gtk_widget_unparent (child);
910 gtk_widget_destroy (child);
911 gtk_widget_unref (child);
912 item->subtree = NULL;
915 /* free pixmaps box */
916 child = item->pixmaps_box;
919 gtk_widget_ref (child);
920 gtk_widget_unparent (child);
921 gtk_widget_destroy (child);
922 gtk_widget_unref (child);
923 item->pixmaps_box = NULL;
927 /* destroy plus pixmap */
928 if (item->plus_pix_widget)
930 gtk_widget_destroy (item->plus_pix_widget);
931 gtk_widget_unref (item->plus_pix_widget);
932 item->plus_pix_widget = NULL;
935 /* destroy minus pixmap */
936 if (item->minus_pix_widget)
938 gtk_widget_destroy (item->minus_pix_widget);
939 gtk_widget_unref (item->minus_pix_widget);
940 item->minus_pix_widget = NULL;
943 /* By removing the pixmaps here, and not in unrealize, we depend on
944 * the fact that a widget can never change colormap or visual.
946 gtk_tree_item_remove_pixmaps (item);
948 GTK_OBJECT_CLASS (parent_class)->destroy (object);
951 g_message("- gtk_tree_item_destroy\n");
952 #endif /* TREE_DEBUG */
956 gtk_tree_item_remove_subtree (GtkTreeItem* item)
958 g_return_if_fail (item != NULL);
959 g_return_if_fail (GTK_IS_TREE_ITEM(item));
960 g_return_if_fail (item->subtree != NULL);
962 if (GTK_TREE (item->subtree)->children)
964 /* The following call will remove the children and call
965 * gtk_tree_item_remove_subtree() again. So we are done.
967 gtk_tree_remove_items (GTK_TREE (item->subtree),
968 GTK_TREE (item->subtree)->children);
972 if (GTK_WIDGET_MAPPED (item->subtree))
973 gtk_widget_unmap (item->subtree);
975 gtk_widget_unparent (item->subtree);
977 if (item->pixmaps_box)
978 gtk_widget_hide (item->pixmaps_box);
980 item->subtree = NULL;
984 item->expanded = FALSE;
985 if (item->pixmaps_box)
987 gtk_container_remove (GTK_CONTAINER (item->pixmaps_box),
988 item->minus_pix_widget);
989 gtk_container_add (GTK_CONTAINER (item->pixmaps_box),
990 item->plus_pix_widget);
996 gtk_tree_item_map (GtkWidget *widget)
1001 g_return_if_fail (widget != NULL);
1002 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
1004 bin = GTK_BIN (widget);
1005 item = GTK_TREE_ITEM(widget);
1007 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
1009 gdk_window_show (widget->window);
1011 if(item->pixmaps_box &&
1012 GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
1013 !GTK_WIDGET_MAPPED (item->pixmaps_box))
1014 gtk_widget_map (item->pixmaps_box);
1017 GTK_WIDGET_VISIBLE (bin->child) &&
1018 !GTK_WIDGET_MAPPED (bin->child))
1019 gtk_widget_map (bin->child);
1023 gtk_tree_item_unmap (GtkWidget *widget)
1028 g_return_if_fail (widget != NULL);
1029 g_return_if_fail (GTK_IS_TREE_ITEM (widget));
1031 GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
1032 bin = GTK_BIN (widget);
1033 item = GTK_TREE_ITEM(widget);
1035 gdk_window_hide (widget->window);
1037 if(item->pixmaps_box &&
1038 GTK_WIDGET_VISIBLE (item->pixmaps_box) &&
1039 GTK_WIDGET_MAPPED (item->pixmaps_box))
1040 gtk_widget_unmap (bin->child);
1043 GTK_WIDGET_VISIBLE (bin->child) &&
1044 GTK_WIDGET_MAPPED (bin->child))
1045 gtk_widget_unmap (bin->child);
1049 gtk_tree_item_forall (GtkContainer *container,
1050 gboolean include_internals,
1051 GtkCallback callback,
1052 gpointer callback_data)
1055 GtkTreeItem *tree_item;
1057 g_return_if_fail (container != NULL);
1058 g_return_if_fail (GTK_IS_TREE_ITEM (container));
1059 g_return_if_fail (callback != NULL);
1061 bin = GTK_BIN (container);
1062 tree_item = GTK_TREE_ITEM (container);
1065 (* callback) (bin->child, callback_data);
1066 if (include_internals && tree_item->subtree)
1067 (* callback) (tree_item->subtree, callback_data);