332 lines
8.8 KiB
C
332 lines
8.8 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <gdk/gdk.h>
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#include "gtkinvisible.h"
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#include "gtkwidgetprivate.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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struct _GtkInvisiblePrivate
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{
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GdkScreen *screen;
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gboolean has_user_ref_count;
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};
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enum {
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PROP_0,
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PROP_SCREEN,
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LAST_ARG
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};
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static void gtk_invisible_destroy (GtkWidget *widget);
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static void gtk_invisible_realize (GtkWidget *widget);
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static void gtk_invisible_style_updated (GtkWidget *widget);
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static void gtk_invisible_show (GtkWidget *widget);
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static void gtk_invisible_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_invisible_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_invisible_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static GObject *gtk_invisible_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params);
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G_DEFINE_TYPE (GtkInvisible, gtk_invisible, GTK_TYPE_WIDGET)
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static void
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gtk_invisible_class_init (GtkInvisibleClass *class)
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{
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GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
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widget_class = (GtkWidgetClass*) class;
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gobject_class = (GObjectClass*) class;
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widget_class->realize = gtk_invisible_realize;
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widget_class->style_updated = gtk_invisible_style_updated;
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widget_class->show = gtk_invisible_show;
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widget_class->size_allocate = gtk_invisible_size_allocate;
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widget_class->destroy = gtk_invisible_destroy;
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gobject_class->set_property = gtk_invisible_set_property;
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gobject_class->get_property = gtk_invisible_get_property;
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gobject_class->constructor = gtk_invisible_constructor;
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g_object_class_install_property (gobject_class,
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PROP_SCREEN,
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g_param_spec_object ("screen",
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P_("Screen"),
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P_("The screen where this window will be displayed"),
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GDK_TYPE_SCREEN,
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GTK_PARAM_READWRITE));
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g_type_class_add_private (class, sizeof (GtkInvisiblePrivate));
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}
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static void
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gtk_invisible_init (GtkInvisible *invisible)
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{
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GtkInvisiblePrivate *priv;
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invisible->priv = G_TYPE_INSTANCE_GET_PRIVATE (invisible,
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GTK_TYPE_INVISIBLE,
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GtkInvisiblePrivate);
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priv = invisible->priv;
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gtk_widget_set_has_window (GTK_WIDGET (invisible), TRUE);
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_gtk_widget_set_is_toplevel (GTK_WIDGET (invisible), TRUE);
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g_object_ref_sink (invisible);
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priv->has_user_ref_count = TRUE;
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priv->screen = gdk_screen_get_default ();
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}
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static void
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gtk_invisible_destroy (GtkWidget *widget)
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{
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GtkInvisible *invisible = GTK_INVISIBLE (widget);
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GtkInvisiblePrivate *priv = invisible->priv;
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if (priv->has_user_ref_count)
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{
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priv->has_user_ref_count = FALSE;
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g_object_unref (invisible);
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}
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GTK_WIDGET_CLASS (gtk_invisible_parent_class)->destroy (widget);
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}
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/**
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* gtk_invisible_new_for_screen:
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* @screen: a #GdkScreen which identifies on which
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* the new #GtkInvisible will be created.
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*
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* Creates a new #GtkInvisible object for a specified screen
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*
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* Return value: a newly created #GtkInvisible object
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*
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* Since: 2.2
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**/
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GtkWidget*
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gtk_invisible_new_for_screen (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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return g_object_new (GTK_TYPE_INVISIBLE, "screen", screen, NULL);
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}
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/**
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* gtk_invisible_new:
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*
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* Creates a new #GtkInvisible.
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*
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* Return value: a new #GtkInvisible.
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**/
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GtkWidget*
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gtk_invisible_new (void)
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{
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return g_object_new (GTK_TYPE_INVISIBLE, NULL);
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}
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/**
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* gtk_invisible_set_screen:
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* @invisible: a #GtkInvisible.
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* @screen: a #GdkScreen.
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*
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* Sets the #GdkScreen where the #GtkInvisible object will be displayed.
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*
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* Since: 2.2
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**/
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void
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gtk_invisible_set_screen (GtkInvisible *invisible,
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GdkScreen *screen)
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{
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GtkInvisiblePrivate *priv;
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GtkWidget *widget;
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GdkScreen *previous_screen;
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gboolean was_realized;
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g_return_if_fail (GTK_IS_INVISIBLE (invisible));
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g_return_if_fail (GDK_IS_SCREEN (screen));
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priv = invisible->priv;
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if (screen == priv->screen)
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return;
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widget = GTK_WIDGET (invisible);
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previous_screen = priv->screen;
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was_realized = gtk_widget_get_realized (widget);
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if (was_realized)
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gtk_widget_unrealize (widget);
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priv->screen = screen;
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if (screen != previous_screen)
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_gtk_widget_propagate_screen_changed (widget, previous_screen);
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g_object_notify (G_OBJECT (invisible), "screen");
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if (was_realized)
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gtk_widget_realize (widget);
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}
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/**
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* gtk_invisible_get_screen:
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* @invisible: a #GtkInvisible.
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*
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* Returns the #GdkScreen object associated with @invisible
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*
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* Return value: (transfer none): the associated #GdkScreen.
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*
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* Since: 2.2
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**/
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GdkScreen *
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gtk_invisible_get_screen (GtkInvisible *invisible)
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{
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g_return_val_if_fail (GTK_IS_INVISIBLE (invisible), NULL);
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return invisible->priv->screen;
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}
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static void
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gtk_invisible_realize (GtkWidget *widget)
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{
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GdkWindow *parent;
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GdkWindow *window;
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GdkWindowAttr attributes;
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gint attributes_mask;
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gtk_widget_set_realized (widget, TRUE);
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parent = gtk_widget_get_parent_window (widget);
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if (parent == NULL)
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parent = gtk_widget_get_root_window (widget);
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attributes.x = -100;
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attributes.y = -100;
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attributes.width = 10;
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attributes.height = 10;
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attributes.window_type = GDK_WINDOW_TEMP;
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attributes.wclass = GDK_INPUT_ONLY;
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attributes.override_redirect = TRUE;
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attributes.event_mask = gtk_widget_get_events (widget);
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attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
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window = gdk_window_new (parent, &attributes, attributes_mask);
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gtk_widget_set_window (widget, window);
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gdk_window_set_user_data (window, widget);
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}
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static void
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gtk_invisible_style_updated (GtkWidget *widget)
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{
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/* Don't chain up to parent implementation */
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}
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static void
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gtk_invisible_show (GtkWidget *widget)
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{
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_gtk_widget_set_visible_flag (widget, TRUE);
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gtk_widget_map (widget);
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}
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static void
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gtk_invisible_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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gtk_widget_set_allocation (widget, allocation);
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}
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static void
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gtk_invisible_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkInvisible *invisible = GTK_INVISIBLE (object);
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switch (prop_id)
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{
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case PROP_SCREEN:
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gtk_invisible_set_screen (invisible, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_invisible_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkInvisible *invisible = GTK_INVISIBLE (object);
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GtkInvisiblePrivate *priv = invisible->priv;
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switch (prop_id)
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{
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case PROP_SCREEN:
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g_value_set_object (value, priv->screen);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* We use a constructor here so that we can realize the invisible on
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* the correct screen after the "screen" property has been set
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*/
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static GObject*
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gtk_invisible_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params)
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{
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GObject *object;
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object = G_OBJECT_CLASS (gtk_invisible_parent_class)->constructor (type,
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n_construct_properties,
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construct_params);
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gtk_widget_realize (GTK_WIDGET (object));
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return object;
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}
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