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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
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* 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
* 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 <stdlib.h>
#include <sys/types.h>
#include "gdkimage.h"
#include "gdkprivate.h"
GdkImage *
gdk_image_ref (GdkImage *image)
{
return (GdkImage *) g_object_ref (G_OBJECT (image));
}
void
gdk_image_unref (GdkImage *image)
{
g_return_if_fail (GDK_IS_IMAGE (image));
g_object_unref (G_OBJECT (image));
}
/**
* gdk_image_get:
* @window: a #GdkWindow
* @x: x coordinate in @window
* @y: y coordinate in @window
* @width: width of area in @window
* @height: height of area in @window
*
* This is a deprecated wrapper for gdk_drawable_get_image();
* gdk_drawable_get_image() should be used instead. Or even better: in
* most cases gdk_pixbuf_get_from_drawable() is the most convenient
* choice.
*
* Return value: a new #GdkImage or %NULL
**/
GdkImage*
gdk_image_get (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (window), NULL);
g_return_val_if_fail (x >= 0, NULL);
g_return_val_if_fail (y >= 0, NULL);
g_return_val_if_fail (width >= 0, NULL);
g_return_val_if_fail (height >= 0, NULL);
return gdk_drawable_get_image (window, x, y, width, height);
}
/**
* gdk_image_set_colormap:
* @image: a #GdkImage
* @colormap: a #GdkColormap
*
* Sets the colormap for the image to the given colormap. Normally
* there's no need to use this function, images are created with the
* correct colormap if you get the image from a drawable. If you
* create the image from scratch, use the colormap of the drawable you
* intend to render the image to.
**/
void
gdk_image_set_colormap (GdkImage *image,
GdkColormap *colormap)
{
g_return_if_fail (GDK_IS_IMAGE (image));
g_return_if_fail (GDK_IS_COLORMAP (colormap));
if (image->colormap != colormap)
{
if (image->colormap)
g_object_unref (G_OBJECT (image->colormap));
image->colormap = colormap;
g_object_ref (G_OBJECT (image->colormap));
}
}
/**
* gdk_image_get_colormap:
* @image: a #GdkImage
*
* Retrieves the colormap for a given image, if it exists. An image
* will have a colormap if the drawable from which it was created has
* a colormap, or if a colormap was set explicitely with
* gdk_image_set_colormap().
*
* Return value: colormap for the image
**/
GdkColormap *
gdk_image_get_colormap (GdkImage *image)
{
g_return_val_if_fail (GDK_IS_IMAGE (image), NULL);
return image->colormap;
}
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