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/.
36 static void gtk_fixed_class_init (GtkFixedClass *klass);
37 static void gtk_fixed_init (GtkFixed *fixed);
38 static void gtk_fixed_realize (GtkWidget *widget);
39 static void gtk_fixed_size_request (GtkWidget *widget,
40 GtkRequisition *requisition);
41 static void gtk_fixed_size_allocate (GtkWidget *widget,
42 GtkAllocation *allocation);
43 static void gtk_fixed_add (GtkContainer *container,
45 static void gtk_fixed_remove (GtkContainer *container,
47 static void gtk_fixed_forall (GtkContainer *container,
48 gboolean include_internals,
50 gpointer callback_data);
51 static GtkType gtk_fixed_child_type (GtkContainer *container);
53 static void gtk_fixed_set_child_property (GtkContainer *container,
58 static void gtk_fixed_get_child_property (GtkContainer *container,
64 static GtkContainerClass *parent_class = NULL;
68 gtk_fixed_get_type (void)
70 static GtkType fixed_type = 0;
74 static const GtkTypeInfo fixed_info =
78 sizeof (GtkFixedClass),
79 (GtkClassInitFunc) gtk_fixed_class_init,
80 (GtkObjectInitFunc) gtk_fixed_init,
81 /* reserved_1 */ NULL,
82 /* reserved_2 */ NULL,
83 (GtkClassInitFunc) NULL,
86 fixed_type = gtk_type_unique (GTK_TYPE_CONTAINER, &fixed_info);
93 gtk_fixed_class_init (GtkFixedClass *class)
95 GtkObjectClass *object_class;
96 GtkWidgetClass *widget_class;
97 GtkContainerClass *container_class;
99 object_class = (GtkObjectClass*) class;
100 widget_class = (GtkWidgetClass*) class;
101 container_class = (GtkContainerClass*) class;
103 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
105 widget_class->realize = gtk_fixed_realize;
106 widget_class->size_request = gtk_fixed_size_request;
107 widget_class->size_allocate = gtk_fixed_size_allocate;
109 container_class->add = gtk_fixed_add;
110 container_class->remove = gtk_fixed_remove;
111 container_class->forall = gtk_fixed_forall;
112 container_class->child_type = gtk_fixed_child_type;
114 container_class->set_child_property = gtk_fixed_set_child_property;
115 container_class->get_child_property = gtk_fixed_get_child_property;
117 gtk_container_class_install_child_property (container_class,
119 g_param_spec_int ("x",
121 _("X position of child widget"),
127 gtk_container_class_install_child_property (container_class,
129 g_param_spec_int ("y",
131 _("Y position of child widget"),
139 gtk_fixed_child_type (GtkContainer *container)
141 return GTK_TYPE_WIDGET;
145 gtk_fixed_init (GtkFixed *fixed)
147 GTK_WIDGET_SET_FLAGS (fixed, GTK_NO_WINDOW);
149 fixed->children = NULL;
157 fixed = gtk_type_new (GTK_TYPE_FIXED);
158 return GTK_WIDGET (fixed);
161 static GtkFixedChild*
162 get_child (GtkFixed *fixed,
167 children = fixed->children;
170 GtkFixedChild *child;
172 child = children->data;
173 children = children->next;
175 if (child->widget == widget)
183 gtk_fixed_put (GtkFixed *fixed,
188 GtkFixedChild *child_info;
190 g_return_if_fail (GTK_IS_FIXED (fixed));
191 g_return_if_fail (widget != NULL);
193 child_info = g_new (GtkFixedChild, 1);
194 child_info->widget = widget;
198 gtk_widget_set_parent (widget, GTK_WIDGET (fixed));
200 fixed->children = g_list_append (fixed->children, child_info);
204 gtk_fixed_move_internal (GtkFixed *fixed,
211 GtkFixedChild *child;
213 g_return_if_fail (GTK_IS_FIXED (fixed));
214 g_return_if_fail (GTK_IS_WIDGET (widget));
215 g_return_if_fail (widget->parent == GTK_WIDGET (fixed));
217 child = get_child (fixed, widget);
221 gtk_widget_freeze_child_notify (widget);
226 gtk_widget_child_notify (widget, "x");
232 gtk_widget_child_notify (widget, "y");
235 gtk_widget_thaw_child_notify (widget);
237 if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
238 gtk_widget_queue_resize (GTK_WIDGET (fixed));
242 gtk_fixed_move (GtkFixed *fixed,
247 g_return_if_fail (GTK_IS_FIXED (fixed));
248 g_return_if_fail (GTK_IS_WIDGET (widget));
249 g_return_if_fail (widget->parent == GTK_WIDGET (fixed));
251 gtk_fixed_move_internal (fixed, widget, TRUE, x, TRUE, y);
255 gtk_fixed_set_child_property (GtkContainer *container,
264 gtk_fixed_move_internal (GTK_FIXED (container),
266 TRUE, g_value_get_int (value),
270 gtk_fixed_move_internal (GTK_FIXED (container),
273 TRUE, g_value_get_int (value));
276 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
282 gtk_fixed_get_child_property (GtkContainer *container,
288 GtkFixedChild *fixed_child;
290 fixed_child = get_child (GTK_FIXED (container), child);
295 g_value_set_int (value, fixed_child->x);
298 g_value_set_int (value, fixed_child->y);
301 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
307 gtk_fixed_realize (GtkWidget *widget)
309 GdkWindowAttr attributes;
310 gint attributes_mask;
312 g_return_if_fail (GTK_IS_FIXED (widget));
314 if (GTK_WIDGET_NO_WINDOW (widget))
315 GTK_WIDGET_CLASS (parent_class)->realize (widget);
318 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
320 attributes.window_type = GDK_WINDOW_CHILD;
321 attributes.x = widget->allocation.x;
322 attributes.y = widget->allocation.y;
323 attributes.width = widget->allocation.width;
324 attributes.height = widget->allocation.height;
325 attributes.wclass = GDK_INPUT_OUTPUT;
326 attributes.visual = gtk_widget_get_visual (widget);
327 attributes.colormap = gtk_widget_get_colormap (widget);
328 attributes.event_mask = gtk_widget_get_events (widget);
329 attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
331 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
333 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
335 gdk_window_set_user_data (widget->window, widget);
337 widget->style = gtk_style_attach (widget->style, widget->window);
338 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
343 gtk_fixed_size_request (GtkWidget *widget,
344 GtkRequisition *requisition)
347 GtkFixedChild *child;
349 GtkRequisition child_requisition;
351 g_return_if_fail (GTK_IS_FIXED (widget));
352 g_return_if_fail (requisition != NULL);
354 fixed = GTK_FIXED (widget);
355 requisition->width = 0;
356 requisition->height = 0;
358 children = fixed->children;
361 child = children->data;
362 children = children->next;
364 if (GTK_WIDGET_VISIBLE (child->widget))
366 gtk_widget_size_request (child->widget, &child_requisition);
368 requisition->height = MAX (requisition->height,
370 child_requisition.height);
371 requisition->width = MAX (requisition->width,
373 child_requisition.width);
377 requisition->height += GTK_CONTAINER (fixed)->border_width * 2;
378 requisition->width += GTK_CONTAINER (fixed)->border_width * 2;
382 gtk_fixed_size_allocate (GtkWidget *widget,
383 GtkAllocation *allocation)
386 GtkFixedChild *child;
387 GtkAllocation child_allocation;
388 GtkRequisition child_requisition;
390 guint16 border_width;
392 g_return_if_fail (GTK_IS_FIXED(widget));
393 g_return_if_fail (allocation != NULL);
395 fixed = GTK_FIXED (widget);
397 widget->allocation = *allocation;
399 if (!GTK_WIDGET_NO_WINDOW (widget))
401 if (GTK_WIDGET_REALIZED (widget))
402 gdk_window_move_resize (widget->window,
409 border_width = GTK_CONTAINER (fixed)->border_width;
411 children = fixed->children;
414 child = children->data;
415 children = children->next;
417 if (GTK_WIDGET_VISIBLE (child->widget))
419 gtk_widget_get_child_requisition (child->widget, &child_requisition);
420 child_allocation.x = child->x + border_width;
421 child_allocation.y = child->y + border_width;
423 if (GTK_WIDGET_NO_WINDOW (widget))
425 child_allocation.x += widget->allocation.x;
426 child_allocation.y += widget->allocation.y;
429 child_allocation.width = child_requisition.width;
430 child_allocation.height = child_requisition.height;
431 gtk_widget_size_allocate (child->widget, &child_allocation);
437 gtk_fixed_add (GtkContainer *container,
440 g_return_if_fail (GTK_IS_FIXED (container));
441 g_return_if_fail (widget != NULL);
443 gtk_fixed_put (GTK_FIXED (container), widget, 0, 0);
447 gtk_fixed_remove (GtkContainer *container,
451 GtkFixedChild *child;
454 g_return_if_fail (GTK_IS_FIXED (container));
455 g_return_if_fail (widget != NULL);
457 fixed = GTK_FIXED (container);
459 children = fixed->children;
462 child = children->data;
464 if (child->widget == widget)
466 gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
468 gtk_widget_unparent (widget);
470 fixed->children = g_list_remove_link (fixed->children, children);
471 g_list_free (children);
474 if (was_visible && GTK_WIDGET_VISIBLE (container))
475 gtk_widget_queue_resize (GTK_WIDGET (container));
480 children = children->next;
485 gtk_fixed_forall (GtkContainer *container,
486 gboolean include_internals,
487 GtkCallback callback,
488 gpointer callback_data)
491 GtkFixedChild *child;
494 g_return_if_fail (GTK_IS_FIXED (container));
495 g_return_if_fail (callback != NULL);
497 fixed = GTK_FIXED (container);
499 children = fixed->children;
502 child = children->data;
503 children = children->next;
505 (* callback) (child->widget, callback_data);
510 * gtk_fixed_set_has_window:
511 * @fixed: a #GtkFixed
512 * @has_window: %TRUE if a separate window should be created
514 * Sets whether a #GtkFixed widget is created with a separate
515 * #GdkWindow for widget->window or not. (By default, it will be
516 * created with no separate #GdkWindow). This function must be called
517 * while the is not realized, for instance, immediately after the
521 gtk_fixed_set_has_window (GtkFixed *fixed,
524 g_return_if_fail (GTK_IS_FIXED (fixed));
525 g_return_if_fail (!GTK_WIDGET_REALIZED (fixed));
527 if (!has_window != GTK_WIDGET_NO_WINDOW (fixed))
530 GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW);
532 GTK_WIDGET_SET_FLAGS (fixed, GTK_NO_WINDOW);
537 * gtk_fixed_get_has_window:
538 * @fixed: a #GtkWidget
540 * Gets whether the #GtkFixed has it's own #GdkWindow.
541 * See gdk_fixed_set_has_window().
546 gtk_fixed_get_has_window (GtkFixed *fixed)
548 g_return_val_if_fail (GTK_IS_FIXED (fixed), FALSE);
550 return !GTK_WIDGET_NO_WINDOW (fixed);