mirror of https://github.com/GNOME/gimp.git
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* LIBGIMP - The GIMP Library
|
|
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
|
|
*
|
|
* gimpchannel.c
|
|
*
|
|
* 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 3 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
|
|
* Library 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, see
|
|
* <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gimp.h"
|
|
|
|
|
|
G_DEFINE_TYPE (GimpChannel, gimp_channel, GIMP_TYPE_DRAWABLE)
|
|
|
|
#define parent_class gimp_drawable_parent_class
|
|
|
|
|
|
static void
|
|
gimp_channel_class_init (GimpChannelClass *klass)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gimp_channel_init (GimpChannel *channel)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* gimp_channel_get_by_id:
|
|
* @channel_id: The channel id.
|
|
*
|
|
* Returns a #GimpChannel representing @channel_id. This function
|
|
* calls gimp_item_get_by_id() and returns the item if it is channel
|
|
* or %NULL otherwise.
|
|
*
|
|
* Returns: (nullable) (transfer none): a #GimpChannel for @channel_id
|
|
* or %NULL if @channel_id does not represent a valid
|
|
* channel. The object belongs to libgimp and you must not
|
|
* modify or unref it.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
GimpChannel *
|
|
gimp_channel_get_by_id (gint32 channel_id)
|
|
{
|
|
GimpItem *item = gimp_item_get_by_id (channel_id);
|
|
|
|
if (GIMP_IS_CHANNEL (item))
|
|
return (GimpChannel *) item;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* gimp_channel_new:
|
|
* @image: The image to which to add the channel.
|
|
* @name: The channel name.
|
|
* @width: The channel width.
|
|
* @height: The channel height.
|
|
* @opacity: The channel opacity.
|
|
* @color: The channel compositing color.
|
|
*
|
|
* Create a new channel.
|
|
*
|
|
* This procedure creates a new channel with the specified width and
|
|
* height. Name, opacity, and color are also supplied parameters. The
|
|
* new channel still needs to be added to the image, as this is not
|
|
* automatic. Add the new channel with the gimp_image_insert_channel()
|
|
* command. Other attributes such as channel show masked, should be
|
|
* set with explicit procedure calls. The channel's contents are
|
|
* undefined initially.
|
|
*
|
|
* Returns: (transfer none): The newly created channel.
|
|
* The object belongs to libgimp and you should not free it.
|
|
*/
|
|
GimpChannel *
|
|
gimp_channel_new (GimpImage *image,
|
|
const gchar *name,
|
|
guint width,
|
|
guint height,
|
|
gdouble opacity,
|
|
GeglColor *color)
|
|
{
|
|
return _gimp_channel_new (image,
|
|
width,
|
|
height,
|
|
name,
|
|
opacity,
|
|
color);
|
|
}
|