diff options
Diffstat (limited to 'src/color.h')
-rw-r--r-- | src/color.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/color.h b/src/color.h new file mode 100644 index 0000000..03a390b --- /dev/null +++ b/src/color.h @@ -0,0 +1,51 @@ +/* This file is part of Ganv. + * Copyright 2007-2011 David Robillard <http://drobilla.net> + * + * Ganv is free software: you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free + * Software Foundation, either version 3 of the License, or (at your option) + * any later version. + * + * Ganv 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 General Public License for + * details. + * + * You should have received a copy of the GNU General Public License + * along with Ganv. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GANV_UTIL_H +#define GANV_UTIL_H + +#include <glib/gmacros.h> + +#define DEFAULT_TEXT_COLOR 0xFFFFFFFF +#define DEFAULT_FILL_COLOR 0x1E2224FF +#define DEFAULT_BORDER_COLOR 0x3E4244FF + +static inline void +color_to_rgba(guint color, double* r, double* g, double* b, double* a) +{ + *r = ((color >> 24) & 0xFF) / 255.0; + *g = ((color >> 16) & 0xFF) / 255.0; + *b = ((color >> 8) & 0xFF) / 255.0; + *a = ((color) & 0xFF) / 255.0; +} + +static inline guint +highlight_color(guint c, guint delta) +{ + const guint max_char = 255; + const guint r = MIN((c >> 24) + delta, max_char); + const guint g = MIN(((c >> 16) & 0xFF) + delta, max_char); + const guint b = MIN(((c >> 8) & 0xFF) + delta, max_char); + const guint a = c & 0xFF; + + return ((((guint)(r)) << 24) | + (((guint)(g)) << 16) | + (((guint)(b)) << 8) | + (((guint)(a)))); +} + +#endif // GANV_UTIL_H |