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/** \file
* SPViewWidget implementation.
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* Ralf Stephan <ralf@ark.in-berlin.de>
*
* Copyright (C) 2001-2002 Lauris Kaplinski
* Copyright (C) 2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "view.h"
#include "view-widget.h"
//using namespace Inkscape::UI::View;
/* SPViewWidget */
static void sp_view_widget_class_init(SPViewWidgetClass *vwc);
static void sp_view_widget_init(SPViewWidget *widget);
static void sp_view_widget_destroy(GtkObject *object);
static GtkEventBoxClass *widget_parent_class;
/**
* Registers the SPViewWidget class with Glib and returns its type number.
*/
GtkType sp_view_widget_get_type(void)
{
static GtkType type = 0;
//TODO: switch to GObject
// GtkType and such calls were deprecated a while back with the
// introduction of GObject as a separate layer, with GType instead. --JonCruz
if (!type) {
GtkTypeInfo info = {
(gchar*) "SPViewWidget",
sizeof(SPViewWidget),
sizeof(SPViewWidgetClass),
(GtkClassInitFunc) sp_view_widget_class_init,
(GtkObjectInitFunc) sp_view_widget_init,
NULL, NULL, NULL
};
type = gtk_type_unique(GTK_TYPE_EVENT_BOX, &info);
}
return type;
}
/**
* Callback to initialize the SPViewWidget vtable.
*/
static void sp_view_widget_class_init(SPViewWidgetClass *vwc)
{
GtkObjectClass *object_class = GTK_OBJECT_CLASS(vwc);
widget_parent_class = (GtkEventBoxClass*) gtk_type_class(GTK_TYPE_EVENT_BOX);
object_class->destroy = sp_view_widget_destroy;
}
/**
* Callback to initialize the SPViewWidget.
*/
static void sp_view_widget_init(SPViewWidget *vw)
{
vw->view = NULL;
}
/**
* Callback to disconnect from view and destroy SPViewWidget.
*
* Apparently, this gets only called when a desktop is closed, but then twice!
*/
static void sp_view_widget_destroy(GtkObject *object)
{
SPViewWidget *vw = SP_VIEW_WIDGET(object);
if (vw->view) {
vw->view->close();
Inkscape::GC::release(vw->view);
vw->view = NULL;
}
if (((GtkObjectClass *) (widget_parent_class))->destroy) {
(* ((GtkObjectClass *) (widget_parent_class))->destroy)(object);
}
Inkscape::GC::request_early_collection();
}
/**
* Connects widget to view's 'resized' signal and calls virtual set_view()
* function.
*/
void sp_view_widget_set_view(SPViewWidget *vw, Inkscape::UI::View::View *view)
{
g_return_if_fail(vw != NULL);
g_return_if_fail(SP_IS_VIEW_WIDGET(vw));
g_return_if_fail(view != NULL);
g_return_if_fail(vw->view == NULL);
vw->view = view;
Inkscape::GC::anchor(view);
if (((SPViewWidgetClass *) G_OBJECT_GET_CLASS(vw))->set_view) {
((SPViewWidgetClass *) G_OBJECT_GET_CLASS(vw))->set_view(vw, view);
}
}
/**
* Calls the virtual shutdown() function of the SPViewWidget.
*/
bool sp_view_widget_shutdown(SPViewWidget *vw)
{
g_return_val_if_fail(vw != NULL, TRUE);
g_return_val_if_fail(SP_IS_VIEW_WIDGET(vw), TRUE);
if (((SPViewWidgetClass *) G_OBJECT_GET_CLASS(vw))->shutdown) {
return ((SPViewWidgetClass *) G_OBJECT_GET_CLASS(vw))->shutdown(vw);
}
return FALSE;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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