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 * Modified by the GTK+ Team and others 1997-1999. 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/.
30 static void gtk_fixed_class_init (GtkFixedClass *klass);
31 static void gtk_fixed_init (GtkFixed *fixed);
32 static void gtk_fixed_map (GtkWidget *widget);
33 static void gtk_fixed_realize (GtkWidget *widget);
34 static void gtk_fixed_size_request (GtkWidget *widget,
35 GtkRequisition *requisition);
36 static void gtk_fixed_size_allocate (GtkWidget *widget,
37 GtkAllocation *allocation);
38 static void gtk_fixed_paint (GtkWidget *widget,
40 static void gtk_fixed_draw (GtkWidget *widget,
42 static gint gtk_fixed_expose (GtkWidget *widget,
43 GdkEventExpose *event);
44 static void gtk_fixed_add (GtkContainer *container,
46 static void gtk_fixed_remove (GtkContainer *container,
48 static void gtk_fixed_forall (GtkContainer *container,
49 gboolean include_internals,
51 gpointer callback_data);
52 static GtkType gtk_fixed_child_type (GtkContainer *container);
55 static GtkContainerClass *parent_class = NULL;
59 gtk_fixed_get_type (void)
61 static GtkType fixed_type = 0;
65 static const GtkTypeInfo fixed_info =
69 sizeof (GtkFixedClass),
70 (GtkClassInitFunc) gtk_fixed_class_init,
71 (GtkObjectInitFunc) gtk_fixed_init,
72 /* reserved_1 */ NULL,
73 /* reserved_2 */ NULL,
74 (GtkClassInitFunc) NULL,
77 fixed_type = gtk_type_unique (GTK_TYPE_CONTAINER, &fixed_info);
84 gtk_fixed_class_init (GtkFixedClass *class)
86 GtkObjectClass *object_class;
87 GtkWidgetClass *widget_class;
88 GtkContainerClass *container_class;
90 object_class = (GtkObjectClass*) class;
91 widget_class = (GtkWidgetClass*) class;
92 container_class = (GtkContainerClass*) class;
94 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
96 widget_class->map = gtk_fixed_map;
97 widget_class->realize = gtk_fixed_realize;
98 widget_class->size_request = gtk_fixed_size_request;
99 widget_class->size_allocate = gtk_fixed_size_allocate;
100 widget_class->draw = gtk_fixed_draw;
101 widget_class->expose_event = gtk_fixed_expose;
103 container_class->add = gtk_fixed_add;
104 container_class->remove = gtk_fixed_remove;
105 container_class->forall = gtk_fixed_forall;
106 container_class->child_type = gtk_fixed_child_type;
110 gtk_fixed_child_type (GtkContainer *container)
112 return GTK_TYPE_WIDGET;
116 gtk_fixed_init (GtkFixed *fixed)
118 GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW);
120 fixed->children = NULL;
128 fixed = gtk_type_new (GTK_TYPE_FIXED);
129 return GTK_WIDGET (fixed);
133 gtk_fixed_put (GtkFixed *fixed,
138 GtkFixedChild *child_info;
140 g_return_if_fail (fixed != NULL);
141 g_return_if_fail (GTK_IS_FIXED (fixed));
142 g_return_if_fail (widget != NULL);
144 child_info = g_new (GtkFixedChild, 1);
145 child_info->widget = widget;
149 gtk_widget_set_parent (widget, GTK_WIDGET (fixed));
151 fixed->children = g_list_append (fixed->children, child_info);
153 if (GTK_WIDGET_REALIZED (fixed))
154 gtk_widget_realize (widget);
156 if (GTK_WIDGET_VISIBLE (fixed) && GTK_WIDGET_VISIBLE (widget))
158 if (GTK_WIDGET_MAPPED (fixed))
159 gtk_widget_map (widget);
161 gtk_widget_queue_resize (GTK_WIDGET (fixed));
166 gtk_fixed_move (GtkFixed *fixed,
171 GtkFixedChild *child;
174 g_return_if_fail (fixed != NULL);
175 g_return_if_fail (GTK_IS_FIXED (fixed));
176 g_return_if_fail (widget != NULL);
178 children = fixed->children;
181 child = children->data;
182 children = children->next;
184 if (child->widget == widget)
189 if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
190 gtk_widget_queue_resize (GTK_WIDGET (fixed));
198 gtk_fixed_map (GtkWidget *widget)
201 GtkFixedChild *child;
204 g_return_if_fail (widget != NULL);
205 g_return_if_fail (GTK_IS_FIXED (widget));
207 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
208 fixed = GTK_FIXED (widget);
210 children = fixed->children;
213 child = children->data;
214 children = children->next;
216 if (GTK_WIDGET_VISIBLE (child->widget) &&
217 !GTK_WIDGET_MAPPED (child->widget))
218 gtk_widget_map (child->widget);
221 gdk_window_show (widget->window);
225 gtk_fixed_realize (GtkWidget *widget)
227 GdkWindowAttr attributes;
228 gint attributes_mask;
230 g_return_if_fail (widget != NULL);
231 g_return_if_fail (GTK_IS_FIXED (widget));
233 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
235 attributes.window_type = GDK_WINDOW_CHILD;
236 attributes.x = widget->allocation.x;
237 attributes.y = widget->allocation.y;
238 attributes.width = widget->allocation.width;
239 attributes.height = widget->allocation.height;
240 attributes.wclass = GDK_INPUT_OUTPUT;
241 attributes.visual = gtk_widget_get_visual (widget);
242 attributes.colormap = gtk_widget_get_colormap (widget);
243 attributes.event_mask = gtk_widget_get_events (widget);
244 attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
246 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
248 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
250 gdk_window_set_user_data (widget->window, widget);
252 widget->style = gtk_style_attach (widget->style, widget->window);
253 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
257 gtk_fixed_size_request (GtkWidget *widget,
258 GtkRequisition *requisition)
261 GtkFixedChild *child;
263 GtkRequisition child_requisition;
265 g_return_if_fail (widget != NULL);
266 g_return_if_fail (GTK_IS_FIXED (widget));
267 g_return_if_fail (requisition != NULL);
269 fixed = GTK_FIXED (widget);
270 requisition->width = 0;
271 requisition->height = 0;
273 children = fixed->children;
276 child = children->data;
277 children = children->next;
279 if (GTK_WIDGET_VISIBLE (child->widget))
281 gtk_widget_size_request (child->widget, &child_requisition);
283 requisition->height = MAX (requisition->height,
285 child_requisition.height);
286 requisition->width = MAX (requisition->width,
288 child_requisition.width);
292 requisition->height += GTK_CONTAINER (fixed)->border_width * 2;
293 requisition->width += GTK_CONTAINER (fixed)->border_width * 2;
297 gtk_fixed_size_allocate (GtkWidget *widget,
298 GtkAllocation *allocation)
301 GtkFixedChild *child;
302 GtkAllocation child_allocation;
303 GtkRequisition child_requisition;
305 guint16 border_width;
307 g_return_if_fail (widget != NULL);
308 g_return_if_fail (GTK_IS_FIXED(widget));
309 g_return_if_fail (allocation != NULL);
311 fixed = GTK_FIXED (widget);
313 widget->allocation = *allocation;
314 if (GTK_WIDGET_REALIZED (widget))
315 gdk_window_move_resize (widget->window,
321 border_width = GTK_CONTAINER (fixed)->border_width;
323 children = fixed->children;
326 child = children->data;
327 children = children->next;
329 if (GTK_WIDGET_VISIBLE (child->widget))
331 gtk_widget_get_child_requisition (child->widget, &child_requisition);
332 child_allocation.x = child->x + border_width;
333 child_allocation.y = child->y + border_width;
334 child_allocation.width = child_requisition.width;
335 child_allocation.height = child_requisition.height;
336 gtk_widget_size_allocate (child->widget, &child_allocation);
342 gtk_fixed_paint (GtkWidget *widget,
345 g_return_if_fail (widget != NULL);
346 g_return_if_fail (GTK_IS_FIXED (widget));
347 g_return_if_fail (area != NULL);
349 if (GTK_WIDGET_DRAWABLE (widget))
350 gdk_window_clear_area (widget->window,
352 area->width, area->height);
356 gtk_fixed_draw (GtkWidget *widget,
360 GtkFixedChild *child;
361 GdkRectangle child_area;
364 g_return_if_fail (widget != NULL);
365 g_return_if_fail (GTK_IS_FIXED (widget));
367 if (GTK_WIDGET_DRAWABLE (widget))
369 fixed = GTK_FIXED (widget);
370 gtk_fixed_paint (widget, area);
372 children = fixed->children;
375 child = children->data;
376 children = children->next;
378 if (gtk_widget_intersect (child->widget, area, &child_area))
379 gtk_widget_draw (child->widget, &child_area);
385 gtk_fixed_expose (GtkWidget *widget,
386 GdkEventExpose *event)
389 GtkFixedChild *child;
390 GdkEventExpose child_event;
393 g_return_val_if_fail (widget != NULL, FALSE);
394 g_return_val_if_fail (GTK_IS_FIXED (widget), FALSE);
395 g_return_val_if_fail (event != NULL, FALSE);
397 if (GTK_WIDGET_DRAWABLE (widget))
399 fixed = GTK_FIXED (widget);
401 child_event = *event;
403 children = fixed->children;
406 child = children->data;
407 children = children->next;
409 if (GTK_WIDGET_NO_WINDOW (child->widget) &&
410 gtk_widget_intersect (child->widget, &event->area,
412 gtk_widget_event (child->widget, (GdkEvent*) &child_event);
420 gtk_fixed_add (GtkContainer *container,
423 g_return_if_fail (container != NULL);
424 g_return_if_fail (GTK_IS_FIXED (container));
425 g_return_if_fail (widget != NULL);
427 gtk_fixed_put (GTK_FIXED (container), widget, 0, 0);
431 gtk_fixed_remove (GtkContainer *container,
435 GtkFixedChild *child;
438 g_return_if_fail (container != NULL);
439 g_return_if_fail (GTK_IS_FIXED (container));
440 g_return_if_fail (widget != NULL);
442 fixed = GTK_FIXED (container);
444 children = fixed->children;
447 child = children->data;
449 if (child->widget == widget)
451 gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
453 gtk_widget_unparent (widget);
455 fixed->children = g_list_remove_link (fixed->children, children);
456 g_list_free (children);
459 if (was_visible && GTK_WIDGET_VISIBLE (container))
460 gtk_widget_queue_resize (GTK_WIDGET (container));
465 children = children->next;
470 gtk_fixed_forall (GtkContainer *container,
471 gboolean include_internals,
472 GtkCallback callback,
473 gpointer callback_data)
476 GtkFixedChild *child;
479 g_return_if_fail (container != NULL);
480 g_return_if_fail (GTK_IS_FIXED (container));
481 g_return_if_fail (callback != NULL);
483 fixed = GTK_FIXED (container);
485 children = fixed->children;
488 child = children->data;
489 children = children->next;
491 (* callback) (child->widget, callback_data);