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/.
28 #include "gtksignal.h"
29 #include "gtkinvisible.h"
31 static void gtk_invisible_class_init (GtkInvisibleClass *klass);
32 static void gtk_invisible_init (GtkInvisible *invisible);
33 static void gtk_invisible_destroy (GtkObject *object);
34 static void gtk_invisible_realize (GtkWidget *widget);
35 static void gtk_invisible_show (GtkWidget *widget);
36 static void gtk_invisible_size_allocate (GtkWidget *widget,
37 GtkAllocation *allocation);
40 gtk_invisible_get_type (void)
42 static GtkType invisible_type = 0;
46 static const GtkTypeInfo invisible_info =
49 sizeof (GtkInvisible),
50 sizeof (GtkInvisibleClass),
51 (GtkClassInitFunc) gtk_invisible_class_init,
52 (GtkObjectInitFunc) gtk_invisible_init,
53 /* reserved_1 */ NULL,
54 /* reserved_2 */ NULL,
55 (GtkClassInitFunc) NULL,
58 invisible_type = gtk_type_unique (GTK_TYPE_WIDGET, &invisible_info);
61 return invisible_type;
65 gtk_invisible_class_init (GtkInvisibleClass *class)
67 GtkObjectClass *object_class;
68 GtkWidgetClass *widget_class;
70 widget_class = (GtkWidgetClass*) class;
71 object_class = (GtkObjectClass*) class;
73 widget_class->realize = gtk_invisible_realize;
74 widget_class->show = gtk_invisible_show;
75 widget_class->size_allocate = gtk_invisible_size_allocate;
77 object_class->destroy = gtk_invisible_destroy;
81 gtk_invisible_init (GtkInvisible *invisible)
83 GTK_WIDGET_UNSET_FLAGS (invisible, GTK_NO_WINDOW);
84 GTK_WIDGET_SET_FLAGS (invisible, GTK_TOPLEVEL);
86 gtk_widget_ref (GTK_WIDGET (invisible));
87 gtk_object_sink (GTK_OBJECT (invisible));
89 invisible->has_user_ref_count = TRUE;
93 gtk_invisible_destroy (GtkObject *object)
95 GtkInvisible *invisible = GTK_INVISIBLE (object);
97 if (invisible->has_user_ref_count)
99 invisible->has_user_ref_count = FALSE;
100 gtk_widget_unref (GTK_WIDGET (invisible));
105 gtk_invisible_new (void)
107 GtkWidget *result = GTK_WIDGET (gtk_type_new (GTK_TYPE_INVISIBLE));
108 gtk_widget_realize (result);
114 gtk_invisible_realize (GtkWidget *widget)
116 GdkWindowAttr attributes;
117 gint attributes_mask;
119 g_return_if_fail (widget != NULL);
120 g_return_if_fail (GTK_IS_INVISIBLE (widget));
122 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
126 attributes.width = 10;
127 attributes.height = 10;
128 attributes.window_type = GDK_WINDOW_TEMP;
129 attributes.wclass = GDK_INPUT_ONLY;
130 attributes.override_redirect = TRUE;
131 attributes.event_mask = gtk_widget_get_events (widget);
133 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
135 widget->window = gdk_window_new (NULL, &attributes, attributes_mask);
136 gdk_window_set_user_data (widget->window, widget);
140 gtk_invisible_show (GtkWidget *widget)
142 g_return_if_fail (widget != NULL);
144 GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
145 gtk_widget_map (widget);
149 gtk_invisible_size_allocate (GtkWidget *widget,
150 GtkAllocation *allocation)
152 widget->allocation = *allocation;