gtk/gdk/gdkcursor.c

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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.
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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
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gdkcursor.h"
#include "gdkinternals.h"
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GType
gdk_cursor_get_type (void)
{
static GType our_type = 0;
if (our_type == 0)
our_type = g_boxed_type_register_static ("GdkCursor",
(GBoxedCopyFunc)gdk_cursor_ref,
(GBoxedFreeFunc)gdk_cursor_unref);
return our_type;
}
/**
* gdk_cursor_ref:
* @cursor: a #GdkCursor
*
* Adds a reference to @cursor.
*
* Return value: Same @cursor that was passed in
**/
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GdkCursor*
gdk_cursor_ref (GdkCursor *cursor)
{
g_return_val_if_fail (cursor != NULL, NULL);
g_return_val_if_fail (cursor->ref_count > 0, NULL);
cursor->ref_count += 1;
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return cursor;
}
/**
* gdk_cursor_unref:
* @cursor: a #GdkCursor
*
* Removes a reference from @cursor, deallocating the cursor
* if no references remain.
*
**/
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void
gdk_cursor_unref (GdkCursor *cursor)
{
g_return_if_fail (cursor != NULL);
g_return_if_fail (cursor->ref_count > 0);
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cursor->ref_count -= 1;
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if (cursor->ref_count == 0)
_gdk_cursor_destroy (cursor);
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}