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.
20 #include "gtksignal.h"
31 static void gtk_item_class_init (GtkItemClass *klass);
32 static void gtk_item_init (GtkItem *item);
33 static void gtk_item_map (GtkWidget *widget);
34 static void gtk_item_unmap (GtkWidget *widget);
35 static void gtk_item_realize (GtkWidget *widget);
36 static gint gtk_item_enter (GtkWidget *widget,
37 GdkEventCrossing *event);
38 static gint gtk_item_leave (GtkWidget *widget,
39 GdkEventCrossing *event);
42 static guint item_signals[LAST_SIGNAL] = { 0 };
46 gtk_item_get_type (void)
48 static GtkType item_type = 0;
52 static const GtkTypeInfo item_info =
56 sizeof (GtkItemClass),
57 (GtkClassInitFunc) gtk_item_class_init,
58 (GtkObjectInitFunc) gtk_item_init,
59 /* reserved_1 */ NULL,
60 /* reserved_2 */ NULL,
61 (GtkClassInitFunc) NULL,
64 item_type = gtk_type_unique (GTK_TYPE_BIN, &item_info);
71 gtk_item_class_init (GtkItemClass *class)
73 GtkObjectClass *object_class;
74 GtkWidgetClass *widget_class;
76 object_class = (GtkObjectClass*) class;
77 widget_class = (GtkWidgetClass*) class;
79 item_signals[SELECT] =
80 gtk_signal_new ("select",
83 GTK_SIGNAL_OFFSET (GtkItemClass, select),
84 gtk_marshal_NONE__NONE,
86 item_signals[DESELECT] =
87 gtk_signal_new ("deselect",
90 GTK_SIGNAL_OFFSET (GtkItemClass, deselect),
91 gtk_marshal_NONE__NONE,
93 item_signals[TOGGLE] =
94 gtk_signal_new ("toggle",
97 GTK_SIGNAL_OFFSET (GtkItemClass, toggle),
98 gtk_marshal_NONE__NONE,
101 gtk_object_class_add_signals (object_class, item_signals, LAST_SIGNAL);
103 widget_class->activate_signal = item_signals[TOGGLE];
104 widget_class->map = gtk_item_map;
105 widget_class->unmap = gtk_item_unmap;
106 widget_class->realize = gtk_item_realize;
107 widget_class->enter_notify_event = gtk_item_enter;
108 widget_class->leave_notify_event = gtk_item_leave;
110 class->select = NULL;
111 class->deselect = NULL;
112 class->toggle = NULL;
116 gtk_item_init (GtkItem *item)
118 GTK_WIDGET_UNSET_FLAGS (item, GTK_NO_WINDOW);
122 gtk_item_select (GtkItem *item)
124 gtk_signal_emit (GTK_OBJECT (item), item_signals[SELECT]);
128 gtk_item_deselect (GtkItem *item)
130 gtk_signal_emit (GTK_OBJECT (item), item_signals[DESELECT]);
134 gtk_item_toggle (GtkItem *item)
136 gtk_signal_emit (GTK_OBJECT (item), item_signals[TOGGLE]);
141 gtk_item_map (GtkWidget *widget)
145 g_return_if_fail (widget != NULL);
146 g_return_if_fail (GTK_IS_ITEM (widget));
148 GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
150 gdk_window_show (widget->window);
152 bin = GTK_BIN (widget);
155 GTK_WIDGET_VISIBLE (bin->child) &&
156 !GTK_WIDGET_MAPPED (bin->child))
157 gtk_widget_map (bin->child);
161 gtk_item_unmap (GtkWidget *widget)
163 g_return_if_fail (widget != NULL);
164 g_return_if_fail (GTK_IS_ITEM (widget));
166 GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
168 gdk_window_hide (widget->window);
172 gtk_item_realize (GtkWidget *widget)
174 GdkWindowAttr attributes;
175 gint attributes_mask;
177 g_return_if_fail (widget != NULL);
178 g_return_if_fail (GTK_IS_ITEM (widget));
180 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
182 attributes.x = widget->allocation.x;
183 attributes.y = widget->allocation.y;
184 attributes.width = widget->allocation.width;
185 attributes.height = widget->allocation.height;
186 attributes.window_type = GDK_WINDOW_CHILD;
187 attributes.wclass = GDK_INPUT_OUTPUT;
188 attributes.visual = gtk_widget_get_visual (widget);
189 attributes.colormap = gtk_widget_get_colormap (widget);
190 attributes.event_mask = (gtk_widget_get_events (widget) |
192 GDK_BUTTON_PRESS_MASK |
193 GDK_BUTTON_RELEASE_MASK |
194 GDK_ENTER_NOTIFY_MASK |
195 GDK_LEAVE_NOTIFY_MASK |
196 GDK_POINTER_MOTION_MASK);
198 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
199 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
200 gdk_window_set_user_data (widget->window, widget);
202 widget->style = gtk_style_attach (widget->style, widget->window);
203 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
204 gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
208 gtk_item_enter (GtkWidget *widget,
209 GdkEventCrossing *event)
211 g_return_val_if_fail (widget != NULL, FALSE);
212 g_return_val_if_fail (GTK_IS_ITEM (widget), FALSE);
213 g_return_val_if_fail (event != NULL, FALSE);
215 return gtk_widget_event (widget->parent, (GdkEvent*) event);
219 gtk_item_leave (GtkWidget *widget,
220 GdkEventCrossing *event)
222 g_return_val_if_fail (widget != NULL, FALSE);
223 g_return_val_if_fail (GTK_IS_ITEM (widget), FALSE);
224 g_return_val_if_fail (event != NULL, FALSE);
226 return gtk_widget_event (widget->parent, (GdkEvent*) event);