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/* gdkcolorspace.c
*
* Copyright 2021 (c) Benjamin Otte
*
* 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, see <http://www.gnu.org/licenses/>.
*/
/**
* GdkColorSpace:
*
* `GdkColorSpace` is used to describe color spaces.
*
* Tell developers what a color space is instead of just linking to
* https://en.wikipedia.org/wiki/Color_space
*
* `GdkColorSpace` objects are immutable and therefore threadsafe.
*
* Since: 4.6
*/
#include "config.h"
#include "gdkcolorspaceprivate.h"
#include "gdkintl.h"
enum {
PROP_0,
N_PROPS
};
//static GParamSpec *properties[N_PROPS];
G_DEFINE_TYPE (GdkColorSpace, gdk_color_space, G_TYPE_OBJECT)
static gboolean
gdk_color_space_default_supports_format (GdkColorSpace *self,
GdkMemoryFormat format)
{
return FALSE;
}
static GBytes *
gdk_color_space_default_save_to_icc_profile (GdkColorSpace *self,
GError **error)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
_("This color space does not support ICC profiles"));
return NULL;
}
static void
gdk_color_space_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
//GdkColorSpace *self = GDK_COLOR_SPACE (gobject);
switch (prop_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
gdk_color_space_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
//GdkColorSpace *self = GDK_COLOR_SPACE (gobject);
switch (prop_id)
{
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
gdk_color_space_dispose (GObject *object)
{
//GdkColorSpace *self = GDK_COLOR_SPACE (object);
G_OBJECT_CLASS (gdk_color_space_parent_class)->dispose (object);
}
static void
gdk_color_space_class_init (GdkColorSpaceClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
klass->supports_format = gdk_color_space_default_supports_format;
klass->save_to_icc_profile = gdk_color_space_default_save_to_icc_profile;
gobject_class->set_property = gdk_color_space_set_property;
gobject_class->get_property = gdk_color_space_get_property;
gobject_class->dispose = gdk_color_space_dispose;
}
static void
gdk_color_space_init (GdkColorSpace *self)
{
}
/**
* gdk_color_space_get_srgb:
*
* Returns the color profile representing the sRGB color space.
*
* If you don't know anything about color profiles but need one for
* use with some function, this one is most likely the right one.
*
* Returns: (transfer none): the color profile for the sRGB
* color space.
*
* Since: 4.6
*/
GdkColorSpace *
gdk_color_space_get_srgb (void)
{
static GdkColorSpace *srgb_profile;
if (g_once_init_enter (&srgb_profile))
{
GdkColorSpace *new_profile;
new_profile = NULL; //gdk_color_space_new_from_lcms_profile (cmsCreate_sRGBProfile (), NULL);
g_assert (new_profile);
g_once_init_leave (&srgb_profile, new_profile);
}
return srgb_profile;
}
/**
* gdk_color_space_supports_format:
* @self: a `GdkColorSpace`
* @format: the format to check
*
* Checks if this color space can be used with textures in the given format.
*
* Returns: %TRUE if this colorspace supports the format
*
* Since: 4.6
**/
gboolean
gdk_color_space_supports_format (GdkColorSpace *self,
GdkMemoryFormat format)
{
g_return_val_if_fail (GDK_IS_COLOR_SPACE (self), FALSE);
g_return_val_if_fail (format < GDK_MEMORY_N_FORMATS, FALSE);
return GDK_COLOR_SPACE_GET_CLASS (self)->supports_format (self, format);
}
/**
* gdk_color_space_save_to_icc_profile:
* @self: a `GdkColorSpace`
* @error: Return location for an error
*
* Saves the color space to an
* [ICC profile](https://en.wikipedia.org/wiki/ICC_profile).
*
* Some color spaces cannot be represented as ICC profiles. In
* that case, an error will be set and %NULL will be returned.
*
* Returns: A new `GBytes` containing the ICC profile
*
* Since: 4.6
**/
GBytes *
gdk_color_space_save_to_icc_profile (GdkColorSpace *self,
GError **error)
{
g_return_val_if_fail (GDK_IS_COLOR_SPACE (self), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
return GDK_COLOR_SPACE_GET_CLASS (self)->save_to_icc_profile (self, error);
}
/**
* gdk_color_space_equal:
* @profile1: (type GdkColorSpace): a `GdkColorSpace`
* @profile2: (type GdkColorSpace): another `GdkColorSpace`
*
* Compares two `GdkColorSpace`s for equality.
*
* Note that this function is not guaranteed to be perfect and two equal
* profiles may compare not equal. However, different profiles will
* never compare equal.
*
* Returns: %TRUE if the two color profiles compare equal
*
* Since: 4.6
*/
gboolean
gdk_color_space_equal (gconstpointer profile1,
gconstpointer profile2)
{
return profile1 == profile2;
}
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