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/.
28 #include "gtksignal.h"
39 static void gtk_item_class_init (GtkItemClass *klass);
40 static void gtk_item_init (GtkItem *item);
41 static void gtk_item_map (GtkWidget *widget);
42 static void gtk_item_unmap (GtkWidget *widget);
43 static void gtk_item_realize (GtkWidget *widget);
44 static gint gtk_item_enter (GtkWidget *widget,
45 GdkEventCrossing *event);
46 static gint gtk_item_leave (GtkWidget *widget,
47 GdkEventCrossing *event);
50 static guint item_signals[LAST_SIGNAL] = { 0 };
54 gtk_item_get_type (void)
56 static GtkType item_type = 0;
60 static const GtkTypeInfo item_info =
64 sizeof (GtkItemClass),
65 (GtkClassInitFunc) gtk_item_class_init,
66 (GtkObjectInitFunc) gtk_item_init,
67 /* reserved_1 */ NULL,
68 /* reserved_2 */ NULL,
69 (GtkClassInitFunc) NULL,
72 item_type = gtk_type_unique (GTK_TYPE_BIN, &item_info);
79 gtk_item_class_init (GtkItemClass *class)
81 GtkObjectClass *object_class;
82 GtkWidgetClass *widget_class;
84 object_class = (GtkObjectClass*) class;
85 widget_class = (GtkWidgetClass*) class;
87 item_signals[SELECT] =
88 gtk_signal_new ("select",
91 GTK_SIGNAL_OFFSET (GtkItemClass, select),
92 gtk_marshal_NONE__NONE,
94 item_signals[DESELECT] =
95 gtk_signal_new ("deselect",
98 GTK_SIGNAL_OFFSET (GtkItemClass, deselect),
99 gtk_marshal_NONE__NONE,
101 item_signals[TOGGLE] =
102 gtk_signal_new ("toggle",
105 GTK_SIGNAL_OFFSET (GtkItemClass, toggle),
106 gtk_marshal_NONE__NONE,
109 gtk_object_class_add_signals (object_class, item_signals, LAST_SIGNAL);
111 widget_class->activate_signal = item_signals[TOGGLE];
112 widget_class->map = gtk_item_map;
113 widget_class->unmap = gtk_item_unmap;
114 widget_class->realize = gtk_item_realize;
115 widget_class->enter_notify_event = gtk_item_enter;
116 widget_class->leave_notify_event = gtk_item_leave;
118 class->select = NULL;
119 class->deselect = NULL;
120 class->toggle = NULL;
124 gtk_item_init (GtkItem *item)
126 GTK_WIDGET_UNSET_FLAGS (item, GTK_NO_WINDOW);
130 gtk_item_select (GtkItem *item)
132 gtk_signal_emit (GTK_OBJECT (item), item_signals[SELECT]);
136 gtk_item_deselect (GtkItem *item)
138 gtk_signal_emit (GTK_OBJECT (item), item_signals[DESELECT]);
142 gtk_item_toggle (GtkItem *item)
144 gtk_signal_emit (GTK_OBJECT (item), item_signals[TOGGLE]);
149 gtk_item_map (GtkWidget *widget)
153 g_return_if_fail (widget != NULL);
154 g_return_if_fail (GTK_IS_ITEM (widget));
156 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
158 bin = GTK_BIN (widget);
161 GTK_WIDGET_VISIBLE (bin->child) &&
162 !GTK_WIDGET_MAPPED (bin->child))
163 gtk_widget_map (bin->child);
165 gdk_window_show (widget->window);
169 gtk_item_unmap (GtkWidget *widget)
171 g_return_if_fail (widget != NULL);
172 g_return_if_fail (GTK_IS_ITEM (widget));
174 GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
176 gdk_window_hide (widget->window);
180 gtk_item_realize (GtkWidget *widget)
182 GdkWindowAttr attributes;
183 gint attributes_mask;
185 g_return_if_fail (widget != NULL);
186 g_return_if_fail (GTK_IS_ITEM (widget));
188 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
190 attributes.x = widget->allocation.x;
191 attributes.y = widget->allocation.y;
192 attributes.width = widget->allocation.width;
193 attributes.height = widget->allocation.height;
194 attributes.window_type = GDK_WINDOW_CHILD;
195 attributes.wclass = GDK_INPUT_OUTPUT;
196 attributes.visual = gtk_widget_get_visual (widget);
197 attributes.colormap = gtk_widget_get_colormap (widget);
198 attributes.event_mask = (gtk_widget_get_events (widget) |
200 GDK_BUTTON_PRESS_MASK |
201 GDK_BUTTON_RELEASE_MASK |
202 GDK_ENTER_NOTIFY_MASK |
203 GDK_LEAVE_NOTIFY_MASK |
204 GDK_POINTER_MOTION_MASK);
206 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
207 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
208 gdk_window_set_user_data (widget->window, widget);
210 widget->style = gtk_style_attach (widget->style, widget->window);
211 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
212 gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
216 gtk_item_enter (GtkWidget *widget,
217 GdkEventCrossing *event)
219 g_return_val_if_fail (widget != NULL, FALSE);
220 g_return_val_if_fail (GTK_IS_ITEM (widget), FALSE);
221 g_return_val_if_fail (event != NULL, FALSE);
223 return gtk_widget_event (widget->parent, (GdkEvent*) event);
227 gtk_item_leave (GtkWidget *widget,
228 GdkEventCrossing *event)
230 g_return_val_if_fail (widget != NULL, FALSE);
231 g_return_val_if_fail (GTK_IS_ITEM (widget), FALSE);
232 g_return_val_if_fail (event != NULL, FALSE);
234 return gtk_widget_event (widget->parent, (GdkEvent*) event);