GtkSharp/gtk/glue/cellrenderer.c

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/* cellrenderer.c : Glue for overriding pieces of GtkCellRenderer
*
* Author: Todd Berman (tberman@sevenl.net),
* Peter Johanson (peter@peterjohanson.com)
*
* Copyright (C) 2004 Todd Berman
* Copyright (C) 2007 Peter Johanson
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the Lesser GNU General
* Public License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gtk/gtkcellrenderer.h>
const gchar *__gtype_prefix = "__gtksharp_";
#define HAS_PREFIX(a) (*((guint64 *)(a)) == *((guint64 *) __gtype_prefix))
static GObjectClass *
get_threshold_class (GObject *obj)
{
GType gtype = G_TYPE_FROM_INSTANCE (obj);
while (HAS_PREFIX (g_type_name (gtype)))
gtype = g_type_parent (gtype);
GObjectClass *klass = g_type_class_peek (gtype);
if (klass == NULL) klass = g_type_class_ref (gtype);
return klass;
}
void gtksharp_cellrenderer_base_get_size (GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height);
void
gtksharp_cellrenderer_base_get_size (GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height)
{
GtkCellRendererClass *klass = (GtkCellRendererClass *) get_threshold_class (G_OBJECT (cell));
if (klass->get_size)
(* klass->get_size) (cell, widget, cell_area, x_offset, y_offset, width, height);
}
void gtksharp_cellrenderer_override_get_size (GType gtype, gpointer cb);
void
gtksharp_cellrenderer_override_get_size (GType gtype, gpointer cb)
{
GObjectClass *klass = g_type_class_peek (gtype);
if (klass == NULL)
klass = g_type_class_ref (gtype);
((GtkCellRendererClass *) klass)->get_size = cb;
}