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77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2010, Red Hat, Inc
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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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#pragma once
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#include "gdkrgba.h"
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#include <gtk/css/gtkcss.h>
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#include "gtk/css/gtkcssparserprivate.h"
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#define _GDK_RGBA_DECODE(c) ((unsigned)(((c) >= 'A' && (c) <= 'F') ? ((c)-'A'+10) : \
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((c) >= 'a' && (c) <= 'f') ? ((c)-'a'+10) : \
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((c) >= '0' && (c) <= '9') ? ((c)-'0') : \
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-1))
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#define _GDK_RGBA_SELECT_COLOR(_str, index3, index6) (sizeof(_str) <= 4 ? _GDK_RGBA_DECODE ((_str)[index3]) : _GDK_RGBA_DECODE ((_str)[index6]))
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#define GDK_RGBA(str) ((GdkRGBA) {\
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((_GDK_RGBA_SELECT_COLOR(str, 0, 0) << 4) | _GDK_RGBA_SELECT_COLOR(str, 0, 1)) / 255., \
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((_GDK_RGBA_SELECT_COLOR(str, 1, 2) << 4) | _GDK_RGBA_SELECT_COLOR(str, 1, 3)) / 255., \
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((_GDK_RGBA_SELECT_COLOR(str, 2, 4) << 4) | _GDK_RGBA_SELECT_COLOR(str, 2, 5)) / 255., \
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((sizeof(str) % 4 == 1) ? ((_GDK_RGBA_SELECT_COLOR(str, 3, 6) << 4) | _GDK_RGBA_SELECT_COLOR(str, 3, 7)) : 0xFF) / 255. })
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#define GDK_RGBA_INIT_ALPHA(rgba,opacity) ((GdkRGBA) { (rgba)->red, (rgba)->green, (rgba)->blue, (rgba)->alpha * (opacity) })
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#define GDK_RGBA_TRANSPARENT ((GdkRGBA) { 0, 0, 0, 0 })
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#define GDK_RGBA_BLACK ((GdkRGBA) { 0, 0, 0, 1 })
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#define GDK_RGBA_WHITE ((GdkRGBA) { 1, 1, 1, 1 })
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gboolean gdk_rgba_parser_parse (GtkCssParser *parser,
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GdkRGBA *rgba);
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#define gdk_rgba_is_clear(rgba) _gdk_rgba_is_clear (rgba)
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#define gdk_rgba_is_opaque(rgba) _gdk_rgba_is_opaque (rgba)
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#define gdk_rgba_equal(p1, p2) _gdk_rgba_equal (p1, p2)
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static inline gboolean
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_gdk_rgba_is_clear (const GdkRGBA *rgba)
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{
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return rgba->alpha < ((float) 0x00ff / (float) 0xffff);
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}
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static inline gboolean
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_gdk_rgba_is_opaque (const GdkRGBA *rgba)
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{
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return rgba->alpha > ((float)0xff00 / (float)0xffff);
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}
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static inline gboolean
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_gdk_rgba_equal (gconstpointer p1,
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gconstpointer p2)
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{
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const GdkRGBA *rgba1 = p1;
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const GdkRGBA *rgba2 = p2;
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return rgba1->red == rgba2->red &&
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rgba1->green == rgba2->green &&
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rgba1->blue == rgba2->blue &&
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rgba1->alpha == rgba2->alpha;
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}
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G_END_DECLS
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