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 Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 static void gtk_box_class_init (GtkBoxClass *klass);
27 static void gtk_box_init (GtkBox *box);
28 static void gtk_box_get_arg (GtkBox *box,
31 static void gtk_box_set_arg (GtkBox *box,
34 static void gtk_box_destroy (GtkObject *object);
35 static void gtk_box_map (GtkWidget *widget);
36 static void gtk_box_unmap (GtkWidget *widget);
37 static void gtk_box_draw (GtkWidget *widget,
39 static gint gtk_box_expose (GtkWidget *widget,
40 GdkEventExpose *event);
41 static void gtk_box_add (GtkContainer *container,
43 static void gtk_box_remove (GtkContainer *container,
45 static void gtk_box_foreach (GtkContainer *container,
47 gpointer callback_data);
50 static GtkContainerClass *parent_class = NULL;
56 static guint box_type = 0;
60 GtkTypeInfo box_info =
65 (GtkClassInitFunc) gtk_box_class_init,
66 (GtkObjectInitFunc) gtk_box_init,
67 (GtkArgSetFunc) gtk_box_set_arg,
68 (GtkArgGetFunc) gtk_box_get_arg,
71 box_type = gtk_type_unique (gtk_container_get_type (), &box_info);
78 gtk_box_class_init (GtkBoxClass *class)
80 GtkObjectClass *object_class;
81 GtkWidgetClass *widget_class;
82 GtkContainerClass *container_class;
84 object_class = (GtkObjectClass*) class;
85 widget_class = (GtkWidgetClass*) class;
86 container_class = (GtkContainerClass*) class;
88 parent_class = gtk_type_class (gtk_container_get_type ());
90 gtk_object_add_arg_type ("GtkBox::spacing", GTK_TYPE_INT, ARG_SPACING);
91 gtk_object_add_arg_type ("GtkBox::homogeneous", GTK_TYPE_BOOL, ARG_HOMOGENEOUS);
93 object_class->destroy = gtk_box_destroy;
95 widget_class->map = gtk_box_map;
96 widget_class->unmap = gtk_box_unmap;
97 widget_class->draw = gtk_box_draw;
98 widget_class->expose_event = gtk_box_expose;
100 container_class->add = gtk_box_add;
101 container_class->remove = gtk_box_remove;
102 container_class->foreach = gtk_box_foreach;
106 gtk_box_init (GtkBox *box)
108 GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW | GTK_BASIC);
110 box->children = NULL;
112 box->homogeneous = FALSE;
116 gtk_box_set_arg (GtkBox *box,
123 gtk_box_set_spacing (box, GTK_VALUE_INT (*arg));
125 case ARG_HOMOGENEOUS:
126 gtk_box_set_homogeneous (box, GTK_VALUE_BOOL (*arg));
129 arg->type = GTK_TYPE_INVALID;
135 gtk_box_get_arg (GtkBox *box,
142 GTK_VALUE_INT (*arg) = box->spacing;
144 case ARG_HOMOGENEOUS:
145 GTK_VALUE_BOOL (*arg) = box->homogeneous;
148 arg->type = GTK_TYPE_INVALID;
154 gtk_box_pack_start (GtkBox *box,
160 GtkBoxChild *child_info;
162 g_return_if_fail (box != NULL);
163 g_return_if_fail (GTK_IS_BOX (box));
164 g_return_if_fail (child != NULL);
166 child_info = g_new (GtkBoxChild, 1);
167 child_info->widget = child;
168 child_info->padding = padding;
169 child_info->expand = expand ? TRUE : FALSE;
170 child_info->fill = fill ? TRUE : FALSE;
171 child_info->pack = GTK_PACK_START;
173 box->children = g_list_append (box->children, child_info);
175 gtk_widget_set_parent (child, GTK_WIDGET (box));
177 if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
179 if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
180 !GTK_WIDGET_REALIZED (child))
181 gtk_widget_realize (child);
183 if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
184 !GTK_WIDGET_MAPPED (child))
185 gtk_widget_map (child);
188 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
189 gtk_widget_queue_resize (child);
193 gtk_box_pack_end (GtkBox *box,
199 GtkBoxChild *child_info;
201 g_return_if_fail (box != NULL);
202 g_return_if_fail (GTK_IS_BOX (box));
203 g_return_if_fail (child != NULL);
205 child_info = g_new (GtkBoxChild, 1);
206 child_info->widget = child;
207 child_info->padding = padding;
208 child_info->expand = expand ? TRUE : FALSE;
209 child_info->fill = fill ? TRUE : FALSE;
210 child_info->pack = GTK_PACK_END;
212 box->children = g_list_append (box->children, child_info);
214 gtk_widget_set_parent (child, GTK_WIDGET (box));
216 if (GTK_WIDGET_VISIBLE (GTK_WIDGET (box)))
218 if (GTK_WIDGET_REALIZED (GTK_WIDGET (box)) &&
219 !GTK_WIDGET_REALIZED (child))
220 gtk_widget_realize (child);
222 if (GTK_WIDGET_MAPPED (GTK_WIDGET (box)) &&
223 !GTK_WIDGET_MAPPED (child))
224 gtk_widget_map (child);
227 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
228 gtk_widget_queue_resize (child);
232 gtk_box_pack_start_defaults (GtkBox *box,
235 g_return_if_fail (box != NULL);
236 g_return_if_fail (GTK_IS_BOX (box));
237 g_return_if_fail (child != NULL);
239 gtk_box_pack_start (box, child, TRUE, TRUE, 0);
243 gtk_box_pack_end_defaults (GtkBox *box,
246 g_return_if_fail (box != NULL);
247 g_return_if_fail (GTK_IS_BOX (box));
248 g_return_if_fail (child != NULL);
250 gtk_box_pack_end (box, child, TRUE, TRUE, 0);
254 gtk_box_set_homogeneous (GtkBox *box,
257 g_return_if_fail (box != NULL);
258 g_return_if_fail (GTK_IS_BOX (box));
260 if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
262 box->homogeneous = homogeneous ? TRUE : FALSE;
263 gtk_widget_queue_resize (GTK_WIDGET (box));
268 gtk_box_set_spacing (GtkBox *box,
271 g_return_if_fail (box != NULL);
272 g_return_if_fail (GTK_IS_BOX (box));
274 if (spacing != box->spacing)
276 box->spacing = spacing;
277 gtk_widget_queue_resize (GTK_WIDGET (box));
282 gtk_box_reorder_child (GtkBox *box,
288 g_return_if_fail (box != NULL);
289 g_return_if_fail (GTK_IS_BOX (box));
290 g_return_if_fail (child != NULL);
292 list = box->children;
295 GtkBoxChild *child_info;
297 child_info = list->data;
298 if (child_info->widget == child)
304 if (list && box->children->next)
309 list->next->prev = list->prev;
311 list->prev->next = list->next;
313 box->children = list->next;
315 tmp_list = box->children;
316 while (pos && tmp_list->next)
319 tmp_list = tmp_list->next;
324 tmp_list->next = list;
325 list->prev = tmp_list;
331 tmp_list->prev->next = list;
333 box->children = list;
334 list->prev = tmp_list->prev;
335 tmp_list->prev = list;
336 list->next = tmp_list;
339 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
340 gtk_widget_queue_resize (child);
345 gtk_box_query_child_packing (GtkBox *box,
350 GtkPackType *pack_type)
353 GtkBoxChild *child_info;
355 g_return_if_fail (box != NULL);
356 g_return_if_fail (GTK_IS_BOX (box));
357 g_return_if_fail (child != NULL);
359 list = box->children;
362 child_info = list->data;
363 if (child_info->widget == child)
372 *expand = child_info->expand;
374 *fill = child_info->fill;
376 *padding = child_info->padding;
378 *pack_type = child_info->pack;
383 gtk_box_set_child_packing (GtkBox *box,
388 GtkPackType pack_type)
391 GtkBoxChild *child_info;
393 g_return_if_fail (box != NULL);
394 g_return_if_fail (GTK_IS_BOX (box));
395 g_return_if_fail (child != NULL);
397 list = box->children;
400 child_info = list->data;
401 if (child_info->widget == child)
409 child_info->expand = expand != FALSE;
410 child_info->fill = fill != FALSE;
411 child_info->padding = padding;
412 if (pack_type == GTK_PACK_END)
413 child_info->pack = GTK_PACK_END;
415 child_info->pack = GTK_PACK_START;
417 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
418 gtk_widget_queue_resize (child);
424 gtk_box_destroy (GtkObject *object)
430 g_return_if_fail (object != NULL);
431 g_return_if_fail (GTK_IS_BOX (object));
433 box = GTK_BOX (object);
435 children = box->children;
438 child = children->data;
439 children = children->next;
441 child->widget->parent = NULL;
442 gtk_object_unref (GTK_OBJECT (child->widget));
443 gtk_widget_destroy (child->widget);
447 g_list_free (box->children);
449 if (GTK_OBJECT_CLASS (parent_class)->destroy)
450 (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
454 gtk_box_map (GtkWidget *widget)
460 g_return_if_fail (widget != NULL);
461 g_return_if_fail (GTK_IS_BOX (widget));
463 box = GTK_BOX (widget);
464 GTK_WIDGET_SET_FLAGS (box, GTK_MAPPED);
466 children = box->children;
469 child = children->data;
470 children = children->next;
472 if (GTK_WIDGET_VISIBLE (child->widget) &&
473 !GTK_WIDGET_MAPPED (child->widget))
474 gtk_widget_map (child->widget);
479 gtk_box_unmap (GtkWidget *widget)
485 g_return_if_fail (widget != NULL);
486 g_return_if_fail (GTK_IS_BOX (widget));
488 box = GTK_BOX (widget);
489 GTK_WIDGET_UNSET_FLAGS (box, GTK_MAPPED);
491 children = box->children;
494 child = children->data;
495 children = children->next;
497 if (GTK_WIDGET_VISIBLE (child->widget) &&
498 GTK_WIDGET_MAPPED (child->widget))
499 gtk_widget_unmap (child->widget);
504 gtk_box_draw (GtkWidget *widget,
509 GdkRectangle child_area;
512 g_return_if_fail (widget != NULL);
513 g_return_if_fail (GTK_IS_BOX (widget));
515 if (GTK_WIDGET_DRAWABLE (widget))
517 box = GTK_BOX (widget);
519 children = box->children;
522 child = children->data;
523 children = children->next;
525 if (gtk_widget_intersect (child->widget, area, &child_area))
526 gtk_widget_draw (child->widget, &child_area);
532 gtk_box_expose (GtkWidget *widget,
533 GdkEventExpose *event)
537 GdkEventExpose child_event;
540 g_return_val_if_fail (widget != NULL, FALSE);
541 g_return_val_if_fail (GTK_IS_BOX (widget), FALSE);
542 g_return_val_if_fail (event != NULL, FALSE);
544 if (GTK_WIDGET_DRAWABLE (widget))
546 box = GTK_BOX (widget);
548 child_event = *event;
550 children = box->children;
553 child = children->data;
554 children = children->next;
556 if (GTK_WIDGET_NO_WINDOW (child->widget) &&
557 gtk_widget_intersect (child->widget, &event->area, &child_event.area))
558 gtk_widget_event (child->widget, (GdkEvent*) &child_event);
566 gtk_box_add (GtkContainer *container,
569 g_return_if_fail (container != NULL);
570 g_return_if_fail (GTK_IS_BOX (container));
571 g_return_if_fail (widget != NULL);
573 gtk_box_pack_start_defaults (GTK_BOX (container), widget);
577 gtk_box_remove (GtkContainer *container,
584 g_return_if_fail (container != NULL);
585 g_return_if_fail (GTK_IS_BOX (container));
586 g_return_if_fail (widget != NULL);
588 box = GTK_BOX (container);
590 children = box->children;
593 child = children->data;
595 if (child->widget == widget)
597 gtk_widget_unparent (widget);
599 box->children = g_list_remove_link (box->children, children);
600 g_list_free (children);
603 if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
604 gtk_widget_queue_resize (GTK_WIDGET (container));
609 children = children->next;
614 gtk_box_foreach (GtkContainer *container,
615 GtkCallback callback,
616 gpointer callback_data)
622 g_return_if_fail (container != NULL);
623 g_return_if_fail (GTK_IS_BOX (container));
624 g_return_if_fail (callback != NULL);
626 box = GTK_BOX (container);
628 children = box->children;
631 child = children->data;
632 children = children->next;
634 if (child->pack == GTK_PACK_START)
635 (* callback) (child->widget, callback_data);
638 children = g_list_last (box->children);
641 child = children->data;
642 children = children->prev;
644 if (child->pack == GTK_PACK_END)
645 (* callback) (child->widget, callback_data);