gdk_rgba_parse: Support HSL colors

1 files changed, 46 insertions, 0 deletions

diff --git a/gdk/gdkhslaprivate.h b/gdk/gdkhslaprivate.h
new file mode 100644
index 0000000000..751ea28c67
--- /dev/null
+++ b/gdk/gdkhslaprivate.h
@@ -0,0 +1,46 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2012 Benjamin Otte <otte@gnome.org>
+ *
+ * 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/>.
+ */
+
+#ifndef __GTK_HSLA_PRIVATE_H__
+#define __GTK_HSLA_PRIVATE_H__
+
+#include <gdk/gdk.h>
+
+G_BEGIN_DECLS
+
+typedef struct _GdkHSLA GdkHSLA;
+
+struct _GdkHSLA {
+  float hue;
+  float saturation;
+  float lightness;
+  float alpha;
+};
+
+void            _gdk_hsla_init_from_rgba    (GdkHSLA          *hsla,
+                                             const GdkRGBA    *rgba);
+/* Yes, I can name that function like this! */
+void            _gdk_rgba_init_from_hsla    (GdkRGBA          *rgba,
+                                             const GdkHSLA    *hsla);
+
+void            _gdk_hsla_shade             (GdkHSLA          *dest,
+                                             const GdkHSLA    *src,
+                                             float             factor);
+
+G_END_DECLS
+
+#endif /* __GTK_HSLA_PRIVATE_H__ */