FlowCanvas's successor is hereby dubbed Ganv.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@3820 a436a847-0d15-0410-975c-d299462d15a1

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
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+/* 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