Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 65 insertions, 0 deletions

diff --git a/kstyles/keramik/colorutil.cpp b/kstyles/keramik/colorutil.cpp
new file mode 100644
index 000000000..71bf75873
--- /dev/null
+++ b/kstyles/keramik/colorutil.cpp
@@ -0,0 +1,65 @@
+/* Keramik Style for KDE3, color utility routines..
+   Copyright (c) 2002 Malte Starostik <malte@kde.org>
+                  (c) 2002 Maksim Orlovich <mo002j@mail.rochester.edu>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library 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
+   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.
+*/
+// $Id$
+
+#include <qcolor.h>
+
+#include "colorutil.h"
+
+namespace Keramik
+{
+	QColor ColorUtil::lighten(QColor in, int factor)
+	{
+		if (factor > 100)
+		{
+			int h, s, v;
+			in.hsv(&h, &s, &v);
+			
+			float mShare = v/230.0;
+			if (mShare > 1) mShare = 1;
+			
+			mShare *= mShare;
+			
+			int diff = factor - 100;
+			int hd  = int(mShare*diff);
+			int delta  =  int((diff - hd)*7.55);
+			
+			QColor wrk = in.light(100+hd);
+			
+			int r = wrk.red();
+			int g = wrk.green();
+			int b = wrk.blue();
+
+			r+=delta;
+			g+=delta;
+			b+=delta;
+			
+			if (r>255) r=255;
+			if (g>255) g=255;
+			if (b>255) b=255;
+			
+			return QColor(r,g,b);
+		}
+		
+		return in;
+	}
+}
+
+// vim: ts=4 sw=4 noet