gdk: Add GdkColorSpace
The code doesn't do anything yet, this is just the boilerplate.
This commit is contained in:
Benjamin Otte
@@ -31,6 +31,7 @@
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#include <gdk/gdkcairo.h>
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#include <gdk/gdkcairocontext.h>
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#include <gdk/gdkclipboard.h>
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#include <gdk/gdkcolorspace.h>
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#include <gdk/gdkconfig.h>
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#include <gdk/gdkcontentdeserializer.h>
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#include <gdk/gdkcontentformats.h>
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220
gdk/gdkcolorspace.c
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220
gdk/gdkcolorspace.c
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@@ -0,0 +1,220 @@
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/* gdkcolorspace.c
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*
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* Copyright 2021 (c) Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* GdkColorSpace:
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*
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* `GdkColorSpace` is used to describe color spaces.
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*
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* Tell developers what a color space is instead of just linking to
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* https://en.wikipedia.org/wiki/Color_space
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*
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* `GdkColorSpace` objects are immutable and therefore threadsafe.
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*
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* Since: 4.6
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*/
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#include "config.h"
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#include "gdkcolorspaceprivate.h"
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#include "gdkintl.h"
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enum {
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PROP_0,
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N_PROPS
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};
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//static GParamSpec *properties[N_PROPS];
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G_DEFINE_TYPE (GdkColorSpace, gdk_color_space, G_TYPE_OBJECT)
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static gboolean
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gdk_color_space_default_supports_format (GdkColorSpace *self,
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GdkMemoryFormat format)
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{
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return FALSE;
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}
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static GBytes *
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gdk_color_space_default_save_to_icc_profile (GdkColorSpace *self,
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GError **error)
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{
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g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
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_("This color space does not support ICC profiles"));
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return NULL;
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}
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static void
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gdk_color_space_set_property (GObject *gobject,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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//GdkColorSpace *self = GDK_COLOR_SPACE (gobject);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_color_space_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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//GdkColorSpace *self = GDK_COLOR_SPACE (gobject);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_color_space_dispose (GObject *object)
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{
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//GdkColorSpace *self = GDK_COLOR_SPACE (object);
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G_OBJECT_CLASS (gdk_color_space_parent_class)->dispose (object);
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}
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static void
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gdk_color_space_class_init (GdkColorSpaceClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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klass->supports_format = gdk_color_space_default_supports_format;
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klass->save_to_icc_profile = gdk_color_space_default_save_to_icc_profile;
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gobject_class->set_property = gdk_color_space_set_property;
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gobject_class->get_property = gdk_color_space_get_property;
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gobject_class->dispose = gdk_color_space_dispose;
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}
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static void
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gdk_color_space_init (GdkColorSpace *self)
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{
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}
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/**
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* gdk_color_space_get_srgb:
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*
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* Returns the color profile representing the sRGB color space.
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*
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* If you don't know anything about color profiles but need one for
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* use with some function, this one is most likely the right one.
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*
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* Returns: (transfer none): the color profile for the sRGB
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* color space.
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*
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* Since: 4.6
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*/
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GdkColorSpace *
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gdk_color_space_get_srgb (void)
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{
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static GdkColorSpace *srgb_profile;
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if (g_once_init_enter (&srgb_profile))
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{
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GdkColorSpace *new_profile;
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new_profile = NULL; //gdk_color_space_new_from_lcms_profile (cmsCreate_sRGBProfile (), NULL);
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g_assert (new_profile);
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g_once_init_leave (&srgb_profile, new_profile);
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}
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return srgb_profile;
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}
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/**
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* gdk_color_space_supports_format:
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* @self: a `GdkColorSpace`
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* @format: the format to check
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*
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* Checks if this color space can be used with textures in the given format.
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*
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* Returns: %TRUE if this colorspace supports the format
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*
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* Since: 4.6
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**/
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gboolean
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gdk_color_space_supports_format (GdkColorSpace *self,
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GdkMemoryFormat format)
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{
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g_return_val_if_fail (GDK_IS_COLOR_SPACE (self), FALSE);
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g_return_val_if_fail (format < GDK_MEMORY_N_FORMATS, FALSE);
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return GDK_COLOR_SPACE_GET_CLASS (self)->supports_format (self, format);
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}
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/**
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* gdk_color_space_save_to_icc_profile:
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* @self: a `GdkColorSpace`
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* @error: Return location for an error
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*
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* Saves the color space to an
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* [ICC profile](https://en.wikipedia.org/wiki/ICC_profile).
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*
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* Some color spaces cannot be represented as ICC profiles. In
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* that case, an error will be set and %NULL will be returned.
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*
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* Returns: A new `GBytes` containing the ICC profile
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*
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* Since: 4.6
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**/
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GBytes *
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gdk_color_space_save_to_icc_profile (GdkColorSpace *self,
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GError **error)
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{
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g_return_val_if_fail (GDK_IS_COLOR_SPACE (self), NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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return GDK_COLOR_SPACE_GET_CLASS (self)->save_to_icc_profile (self, error);
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}
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/**
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* gdk_color_space_equal:
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* @profile1: (type GdkColorSpace): a `GdkColorSpace`
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* @profile2: (type GdkColorSpace): another `GdkColorSpace`
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*
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* Compares two `GdkColorSpace`s for equality.
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*
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* Note that this function is not guaranteed to be perfect and two equal
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* profiles may compare not equal. However, different profiles will
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* never compare equal.
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*
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* Returns: %TRUE if the two color profiles compare equal
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*
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* Since: 4.6
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*/
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gboolean
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gdk_color_space_equal (gconstpointer profile1,
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gconstpointer profile2)
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{
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return profile1 == profile2;
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}
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68
gdk/gdkcolorspace.h
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68
gdk/gdkcolorspace.h
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@@ -0,0 +1,68 @@
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/* gdkcolorspace.h
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*
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* Copyright 2021 (c) Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GDK_COLOR_SPACE_H__
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#define __GDK_COLOR_SPACE_H__
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#if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gdk/gdk.h> can be included directly."
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#endif
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#include <gdk/gdkenums.h>
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#include <gdk/gdktypes.h>
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#include <gdk/gdkversionmacros.h>
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G_BEGIN_DECLS
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#define GDK_TYPE_COLOR_SPACE (gdk_color_space_get_type ())
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#define GDK_COLOR_SPACE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_COLOR_SPACE, GdkColorSpace))
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#define GDK_IS_COLOR_SPACE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_COLOR_SPACE))
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#define GDK_COLOR_SPACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_COLOR_SPACE, GdkColorSpaceClass))
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#define GDK_IS_COLOR_SPACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_COLOR_SPACE))
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#define GDK_COLOR_SPACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_COLOR_SPACE, GdkColorSpaceClass))
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GdkColorSpace, g_object_unref)
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typedef struct _GdkColorSpaceClass GdkColorSpaceClass;
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GDK_AVAILABLE_IN_4_6
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GType gdk_color_space_get_type (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_4_6
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GdkColorSpace * gdk_color_space_get_srgb (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_4_6
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GdkColorSpace * gdk_color_space_new_from_icc_profile (GBytes *icc_profile,
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GError **error);
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GDK_AVAILABLE_IN_4_6
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gboolean gdk_color_space_supports_format (GdkColorSpace *self,
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GdkMemoryFormat format);
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GDK_AVAILABLE_IN_4_6
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GBytes * gdk_color_space_save_to_icc_profile (GdkColorSpace *self,
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GError **error);
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GDK_AVAILABLE_IN_4_6
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gboolean gdk_color_space_equal (gconstpointer profile1,
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gconstpointer profile2);
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G_END_DECLS
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#endif /* __GDK_COLOR_SPACE_H__ */
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26
gdk/gdkcolorspaceprivate.h
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26
gdk/gdkcolorspaceprivate.h
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@@ -0,0 +1,26 @@
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#ifndef __GDK_COLOR_SPACE_PRIVATE_H__
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#define __GDK_COLOR_SPACE_PRIVATE_H__
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#include "gdkcolorspace.h"
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G_BEGIN_DECLS
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struct _GdkColorSpace
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{
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GObject parent_instance;
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};
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struct _GdkColorSpaceClass
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{
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GObjectClass parent_class;
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gboolean (* supports_format) (GdkColorSpace *self,
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GdkMemoryFormat format);
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GBytes * (* save_to_icc_profile) (GdkColorSpace *self,
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GError **error);
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};
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G_END_DECLS
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#endif /* __GDK_COLOR_SPACE_PRIVATE_H__ */
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@@ -73,6 +73,7 @@ typedef cairo_rectangle_int_t GdkRectangle;
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/* Forward declarations of commonly used types */
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typedef struct _GdkRGBA GdkRGBA;
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typedef struct _GdkColorSpace GdkColorSpace;
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typedef struct _GdkContentFormats GdkContentFormats;
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typedef struct _GdkContentProvider GdkContentProvider;
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typedef struct _GdkCursor GdkCursor;
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@@ -4,6 +4,7 @@ gdk_public_sources = files([
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'gdkcairo.c',
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'gdkcairocontext.c',
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'gdkclipboard.c',
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'gdkcolorspace.c',
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'gdkcontentdeserializer.c',
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'gdkcontentformats.c',
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'gdkcontentprovider.c',
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@@ -64,6 +65,7 @@ gdk_public_headers = files([
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'gdkcairo.h',
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'gdkcairocontext.h',
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'gdkclipboard.h',
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'gdkcolorspace.h',
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'gdkcontentdeserializer.h',
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'gdkcontentformats.h',
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'gdkcontentprovider.h',
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