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.
36 static void gtk_box_class_init (GtkBoxClass *klass);
37 static void gtk_box_init (GtkBox *box);
38 static void gtk_box_get_arg (GtkBox *box,
41 static void gtk_box_set_arg (GtkBox *box,
44 static void gtk_box_map (GtkWidget *widget);
45 static void gtk_box_unmap (GtkWidget *widget);
46 static void gtk_box_draw (GtkWidget *widget,
48 static gint gtk_box_expose (GtkWidget *widget,
49 GdkEventExpose *event);
50 static void gtk_box_add (GtkContainer *container,
52 static void gtk_box_remove (GtkContainer *container,
54 static void gtk_box_foreach (GtkContainer *container,
56 gpointer callback_data);
57 static void gtk_box_set_child_arg (GtkContainer *container,
61 static void gtk_box_get_child_arg (GtkContainer *container,
65 static GtkType gtk_box_child_type (GtkContainer *container);
68 static GtkContainerClass *parent_class = NULL;
72 gtk_box_get_type (void)
74 static GtkType box_type = 0;
78 GtkTypeInfo box_info =
83 (GtkClassInitFunc) gtk_box_class_init,
84 (GtkObjectInitFunc) gtk_box_init,
85 (GtkArgSetFunc) gtk_box_set_arg,
86 (GtkArgGetFunc) gtk_box_get_arg,
89 box_type = gtk_type_unique (GTK_TYPE_CONTAINER, &box_info);
96 gtk_box_class_init (GtkBoxClass *class)
98 GtkObjectClass *object_class;
99 GtkWidgetClass *widget_class;
100 GtkContainerClass *container_class;
102 object_class = (GtkObjectClass*) class;
103 widget_class = (GtkWidgetClass*) class;
104 container_class = (GtkContainerClass*) class;
106 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
108 gtk_object_add_arg_type ("GtkBox::spacing", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_SPACING);
109 gtk_object_add_arg_type ("GtkBox::homogeneous", GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_HOMOGENEOUS);
110 gtk_container_add_child_arg_type ("GtkBox::expand", GTK_TYPE_BOOL, GTK_ARG_READWRITE, CHILD_ARG_EXPAND);
111 gtk_container_add_child_arg_type ("GtkBox::fill", GTK_TYPE_BOOL, GTK_ARG_READWRITE, CHILD_ARG_FILL);
112 gtk_container_add_child_arg_type ("GtkBox::padding", GTK_TYPE_ULONG, GTK_ARG_READWRITE, CHILD_ARG_PADDING);
113 gtk_container_add_child_arg_type ("GtkBox::pack_type", GTK_TYPE_PACK_TYPE, GTK_ARG_READWRITE, CHILD_ARG_PACK_TYPE);
114 gtk_container_add_child_arg_type ("GtkBox::position", GTK_TYPE_LONG, GTK_ARG_READWRITE, CHILD_ARG_POSITION);
116 widget_class->map = gtk_box_map;
117 widget_class->unmap = gtk_box_unmap;
118 widget_class->draw = gtk_box_draw;
119 widget_class->expose_event = gtk_box_expose;
121 container_class->add = gtk_box_add;
122 container_class->remove = gtk_box_remove;
123 container_class->foreach = gtk_box_foreach;
124 container_class->child_type = gtk_box_child_type;
125 container_class->set_child_arg = gtk_box_set_child_arg;
126 container_class->get_child_arg = gtk_box_get_child_arg;
130 gtk_box_init (GtkBox *box)
132 GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW | GTK_BASIC);
134 box->children = NULL;
136 box->homogeneous = FALSE;
140 gtk_box_set_arg (GtkBox *box,
147 gtk_box_set_spacing (box, GTK_VALUE_INT (*arg));
149 case ARG_HOMOGENEOUS:
150 gtk_box_set_homogeneous (box, GTK_VALUE_BOOL (*arg));
158 gtk_box_get_arg (GtkBox *box,
165 GTK_VALUE_INT (*arg) = box->spacing;
167 case ARG_HOMOGENEOUS:
168 GTK_VALUE_BOOL (*arg) = box->homogeneous;
171 arg->type = GTK_TYPE_INVALID;
177 gtk_box_child_type (GtkContainer *container)
179 return GTK_TYPE_WIDGET;
183 gtk_box_set_child_arg (GtkContainer *container,
191 GtkPackType pack_type = 0;
193 if (arg_id != CHILD_ARG_POSITION)
194 gtk_box_query_child_packing (GTK_BOX (container),
203 case CHILD_ARG_EXPAND:
204 gtk_box_set_child_packing (GTK_BOX (container),
206 GTK_VALUE_BOOL (*arg),
212 gtk_box_set_child_packing (GTK_BOX (container),
215 GTK_VALUE_BOOL (*arg),
219 case CHILD_ARG_PADDING:
220 gtk_box_set_child_packing (GTK_BOX (container),
224 GTK_VALUE_ULONG (*arg),
227 case CHILD_ARG_PACK_TYPE:
228 gtk_box_set_child_packing (GTK_BOX (container),
233 GTK_VALUE_ENUM (*arg));
235 case CHILD_ARG_POSITION:
236 gtk_box_reorder_child (GTK_BOX (container),
238 GTK_VALUE_LONG (*arg));
246 gtk_box_get_child_arg (GtkContainer *container,
254 GtkPackType pack_type = 0;
257 if (arg_id != CHILD_ARG_POSITION)
258 gtk_box_query_child_packing (GTK_BOX (container),
267 case CHILD_ARG_EXPAND:
268 GTK_VALUE_BOOL (*arg) = expand;
271 GTK_VALUE_BOOL (*arg) = fill;
273 case CHILD_ARG_PADDING:
274 GTK_VALUE_ULONG (*arg) = padding;
276 case CHILD_ARG_PACK_TYPE:
277 GTK_VALUE_ENUM (*arg) = pack_type;
279 case CHILD_ARG_POSITION:
280 GTK_VALUE_LONG (*arg) = 0;
281 for (list = GTK_BOX (container)->children; list; list = list->next)
283 GtkBoxChild *child_entry;
285 child_entry = list->data;
286 if (child_entry->widget == child)
288 GTK_VALUE_LONG (*arg)++;
291 GTK_VALUE_LONG (*arg) = -1;
294 arg->type = GTK_TYPE_INVALID;
300 gtk_box_pack_start (GtkBox *box,
306 GtkBoxChild *child_info;
308 g_return_if_fail (box != NULL);
309 g_return_if_fail (GTK_IS_BOX (box));
310 g_return_if_fail (child != NULL);
311 g_return_if_fail (child->parent == NULL);
313 child_info = g_new (GtkBoxChild, 1);
314 child_info->widget = child;
315 child_info->padding = padding;
316 child_info->expand = expand ? TRUE : FALSE;
317 child_info->fill = fill ? TRUE : FALSE;
318 child_info->pack = GTK_PACK_START;
320 box->children = g_list_append (box->children, child_info);
322 gtk_widget_set_parent (child, GTK_WIDGET (box));
324 if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
326 if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
327 !GTK_WIDGET_REALIZED (child))
328 gtk_widget_realize (child);
330 if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
331 !GTK_WIDGET_MAPPED (child))
332 gtk_widget_map (child);
335 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
336 gtk_widget_queue_resize (child);
340 gtk_box_pack_end (GtkBox *box,
346 GtkBoxChild *child_info;
348 g_return_if_fail (box != NULL);
349 g_return_if_fail (GTK_IS_BOX (box));
350 g_return_if_fail (child != NULL);
351 g_return_if_fail (child->parent == NULL);
353 child_info = g_new (GtkBoxChild, 1);
354 child_info->widget = child;
355 child_info->padding = padding;
356 child_info->expand = expand ? TRUE : FALSE;
357 child_info->fill = fill ? TRUE : FALSE;
358 child_info->pack = GTK_PACK_END;
360 box->children = g_list_append (box->children, child_info);
362 gtk_widget_set_parent (child, GTK_WIDGET (box));
364 if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
366 if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
367 !GTK_WIDGET_REALIZED (child))
368 gtk_widget_realize (child);
370 if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
371 !GTK_WIDGET_MAPPED (child))
372 gtk_widget_map (child);
375 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
376 gtk_widget_queue_resize (child);
380 gtk_box_pack_start_defaults (GtkBox *box,
383 g_return_if_fail (box != NULL);
384 g_return_if_fail (GTK_IS_BOX (box));
385 g_return_if_fail (child != NULL);
387 gtk_box_pack_start (box, child, TRUE, TRUE, 0);
391 gtk_box_pack_end_defaults (GtkBox *box,
394 g_return_if_fail (box != NULL);
395 g_return_if_fail (GTK_IS_BOX (box));
396 g_return_if_fail (child != NULL);
398 gtk_box_pack_end (box, child, TRUE, TRUE, 0);
402 gtk_box_set_homogeneous (GtkBox *box,
403 gboolean homogeneous)
405 g_return_if_fail (box != NULL);
406 g_return_if_fail (GTK_IS_BOX (box));
408 if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
410 box->homogeneous = homogeneous ? TRUE : FALSE;
411 gtk_widget_queue_resize (GTK_WIDGET (box));
416 gtk_box_set_spacing (GtkBox *box,
419 g_return_if_fail (box != NULL);
420 g_return_if_fail (GTK_IS_BOX (box));
422 if (spacing != box->spacing)
424 box->spacing = spacing;
425 gtk_widget_queue_resize (GTK_WIDGET (box));
430 gtk_box_reorder_child (GtkBox *box,
436 g_return_if_fail (box != NULL);
437 g_return_if_fail (GTK_IS_BOX (box));
438 g_return_if_fail (child != NULL);
440 list = box->children;
443 GtkBoxChild *child_info;
445 child_info = list->data;
446 if (child_info->widget == child)
452 if (list && box->children->next)
457 list->next->prev = list->prev;
459 list->prev->next = list->next;
461 box->children = list->next;
463 tmp_list = box->children;
464 while (position && tmp_list->next)
467 tmp_list = tmp_list->next;
472 tmp_list->next = list;
473 list->prev = tmp_list;
479 tmp_list->prev->next = list;
481 box->children = list;
482 list->prev = tmp_list->prev;
483 tmp_list->prev = list;
484 list->next = tmp_list;
487 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
488 gtk_widget_queue_resize (child);
493 gtk_box_query_child_packing (GtkBox *box,
498 GtkPackType *pack_type)
501 GtkBoxChild *child_info;
503 g_return_if_fail (box != NULL);
504 g_return_if_fail (GTK_IS_BOX (box));
505 g_return_if_fail (child != NULL);
507 list = box->children;
510 child_info = list->data;
511 if (child_info->widget == child)
520 *expand = child_info->expand;
522 *fill = child_info->fill;
524 *padding = child_info->padding;
526 *pack_type = child_info->pack;
531 gtk_box_set_child_packing (GtkBox *box,
536 GtkPackType pack_type)
539 GtkBoxChild *child_info;
541 g_return_if_fail (box != NULL);
542 g_return_if_fail (GTK_IS_BOX (box));
543 g_return_if_fail (child != NULL);
545 list = box->children;
548 child_info = list->data;
549 if (child_info->widget == child)
557 child_info->expand = expand != FALSE;
558 child_info->fill = fill != FALSE;
559 child_info->padding = padding;
560 if (pack_type == GTK_PACK_END)
561 child_info->pack = GTK_PACK_END;
563 child_info->pack = GTK_PACK_START;
565 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
566 gtk_widget_queue_resize (child);
571 gtk_box_map (GtkWidget *widget)
577 g_return_if_fail (widget != NULL);
578 g_return_if_fail (GTK_IS_BOX (widget));
580 box = GTK_BOX (widget);
581 GTK_WIDGET_SET_FLAGS (box, GTK_MAPPED);
583 children = box->children;
586 child = children->data;
587 children = children->next;
589 if (GTK_WIDGET_VISIBLE (child->widget) &&
590 !GTK_WIDGET_MAPPED (child->widget))
591 gtk_widget_map (child->widget);
596 gtk_box_unmap (GtkWidget *widget)
602 g_return_if_fail (widget != NULL);
603 g_return_if_fail (GTK_IS_BOX (widget));
605 box = GTK_BOX (widget);
606 GTK_WIDGET_UNSET_FLAGS (box, GTK_MAPPED);
608 children = box->children;
611 child = children->data;
612 children = children->next;
614 if (GTK_WIDGET_VISIBLE (child->widget) &&
615 GTK_WIDGET_MAPPED (child->widget))
616 gtk_widget_unmap (child->widget);
621 gtk_box_draw (GtkWidget *widget,
626 GdkRectangle child_area;
629 g_return_if_fail (widget != NULL);
630 g_return_if_fail (GTK_IS_BOX (widget));
632 if (GTK_WIDGET_DRAWABLE (widget))
634 box = GTK_BOX (widget);
636 children = box->children;
639 child = children->data;
640 children = children->next;
642 if (gtk_widget_intersect (child->widget, area, &child_area))
643 gtk_widget_draw (child->widget, &child_area);
649 gtk_box_expose (GtkWidget *widget,
650 GdkEventExpose *event)
654 GdkEventExpose child_event;
657 g_return_val_if_fail (widget != NULL, FALSE);
658 g_return_val_if_fail (GTK_IS_BOX (widget), FALSE);
659 g_return_val_if_fail (event != NULL, FALSE);
661 if (GTK_WIDGET_DRAWABLE (widget))
663 box = GTK_BOX (widget);
665 child_event = *event;
667 children = box->children;
670 child = children->data;
671 children = children->next;
673 if (GTK_WIDGET_NO_WINDOW (child->widget) &&
674 gtk_widget_intersect (child->widget, &event->area, &child_event.area))
675 gtk_widget_event (child->widget, (GdkEvent*) &child_event);
683 gtk_box_add (GtkContainer *container,
686 g_return_if_fail (container != NULL);
687 g_return_if_fail (GTK_IS_BOX (container));
688 g_return_if_fail (widget != NULL);
690 gtk_box_pack_start_defaults (GTK_BOX (container), widget);
694 gtk_box_remove (GtkContainer *container,
701 g_return_if_fail (container != NULL);
702 g_return_if_fail (GTK_IS_BOX (container));
703 g_return_if_fail (widget != NULL);
705 box = GTK_BOX (container);
707 children = box->children;
710 child = children->data;
712 if (child->widget == widget)
716 visible = GTK_WIDGET_VISIBLE (widget);
717 gtk_widget_unparent (widget);
719 box->children = g_list_remove_link (box->children, children);
720 g_list_free (children);
723 if (visible && GTK_WIDGET_VISIBLE (container))
724 gtk_widget_queue_resize (GTK_WIDGET (container));
729 children = children->next;
734 gtk_box_foreach (GtkContainer *container,
735 GtkCallback callback,
736 gpointer callback_data)
742 g_return_if_fail (container != NULL);
743 g_return_if_fail (GTK_IS_BOX (container));
744 g_return_if_fail (callback != NULL);
746 box = GTK_BOX (container);
748 children = box->children;
751 child = children->data;
752 children = children->next;
754 if (child->pack == GTK_PACK_START)
755 (* callback) (child->widget, callback_data);
758 children = g_list_last (box->children);
761 child = children->data;
762 children = children->prev;
764 if (child->pack == GTK_PACK_END)
765 (* callback) (child->widget, callback_data);