/**
* gimp_image_get_thumbnail:
* @image_ID: the image ID
* @width: the requested thumbnail width (<= 1024 pixels)
* @height: the requested thumbnail height (<= 1024 pixels)
* @alpha: how to handle an alpha channel
*
* Retrieves a thumbnail pixbuf for the image identified by @image_ID.
* The thumbnail will be not larger than the requested size.
*
* Return value: a new #GdkPixbuf
*
* Since: GIMP 2.2
**/
GdkPixbuf *
gimp_image_get_thumbnail (gint32 image_ID,
gint width,
gint height,
GimpPixbufTransparency alpha)
{
gint thumb_width = width;
gint thumb_height = height;
gint thumb_bpp;
guchar *data;
g_return_val_if_fail (width > 0 && width <= 1024, NULL);
g_return_val_if_fail (height > 0 && height <= 1024, NULL);
data = gimp_image_get_thumbnail_data (image_ID,
&thumb_width,
&thumb_height,
&thumb_bpp);
if (data)
return gimp_pixbuf_from_data (data,
thumb_width, thumb_height, thumb_bpp,
alpha);
else
return NULL;
}
static guchar *
stpui_get_thumbnail_data_function(void *image_ID, gint *width, gint *height,
gint *bpp, gint page)
{
if (gimp_thumbnail_data)
g_free(gimp_thumbnail_data);
gimp_thumbnail_data =
gimp_image_get_thumbnail_data((gint) image_ID, width, height, bpp);
return gimp_thumbnail_data;
}
