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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-13 05:20:24 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-13 05:20:24 +0000
commit67fe54c9369621384a3f2584d0170cb2b4f936e9 (patch)
treea8c0600867d48ed89beb03608577758f20448a8f /style/misc.cpp
downloadtde-style-lipstik-67fe54c9369621384a3f2584d0170cb2b4f936e9.tar.gz
tde-style-lipstik-67fe54c9369621384a3f2584d0170cb2b4f936e9.zip
Added Lipstik theme engine
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kde-style-lipstik@1089389 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/*
+ * Copyright 2003, Sandro Giessl <ceebx@users.sourceforge.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <qcolor.h>
+#include "misc.h"
+
+QColor alphaBlendColors(const QColor &bgColor, const QColor &fgColor, const int a)
+{
+
+ // normal button...
+ QRgb rgb = bgColor.rgb();
+ QRgb rgb_b = fgColor.rgb();
+ int alpha = a;
+ if(alpha>255) alpha = 255;
+ if(alpha<0) alpha = 0;
+ int inv_alpha = 255 - alpha;
+
+ QColor result = QColor( qRgb(qRed(rgb_b)*inv_alpha/255 + qRed(rgb)*alpha/255,
+ qGreen(rgb_b)*inv_alpha/255 + qGreen(rgb)*alpha/255,
+ qBlue(rgb_b)*inv_alpha/255 + qBlue(rgb)*alpha/255) );
+
+ return result;
+}