our current experimental Neutrino branch

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@27 e54a6e83-5905-42d5-8d5c-058d10e6a962

src/gui/color.cpp

@@ -0,0 +1,90 @@
+/*
+	Neutrino-GUI  -   DBoxII-Project
+ 
+	Copyright (C) 2001 Steffen Hehn 'McClean'
+	Homepage: http://dbox.cyberphoria.org/
+ 
+	Kommentar:
+ 
+	Diese GUI wurde von Grund auf neu programmiert und sollte nun vom
+	Aufbau und auch den Ausbaumoeglichkeiten gut aussehen. Neutrino basiert
+	auf der Client-Server Idee, diese GUI ist also von der direkten DBox-
+	Steuerung getrennt. Diese wird dann von Daemons uebernommen.
+	
+ 
+	License: GPL
+ 
+	This program 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 2 of the License, or
+	(at your option) any later version.
+ 
+	This program 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 more details.
+ 
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gui/color.h>
+#include <stdio.h>
+
+
+int convertSetupColor2RGB(const unsigned char r, const unsigned char g, const unsigned char b)
+{
+	unsigned char red =  	int( float(255./100.)*float(r) );
+	unsigned char green =  	int( float(255./100.)*float(g) );
+	unsigned char blue =  	int( float(255./100.)*float(b) );
+
+	return (red << 16) | (green << 8) | blue;
+}
+
+int convertSetupAlpha2Alpha(unsigned char alpha)
+{
+	if(alpha == 0) return 0xFF;
+	else if(alpha >= 100) return 0;
+	unsigned char a = 100 - alpha;
+	int ret = int( float(0xFF/100.)*float(a) );
+	return ret;
+}
+
+void recalcColor(unsigned char &orginal, int fade)
+{
+	if(fade==100)
+	{
+		return;
+	}
+	int color =  int( float( float(orginal) * float( float(fade) / 100.0)) );
+	if(color>255)
+		color=255;
+	if(color<0)
+		color=0;
+	orginal = color;
+}
+
+void protectColor( unsigned char &r, unsigned char &g, unsigned char &b, bool protect )
+{
+	if (!protect)
+		return;
+	if ((r==0) && (g==0) && (b==0))
+	{
+		r=1;
+		g=1;
+		b=1;
+	}
+}
+
+void fadeColor(unsigned char &r, unsigned char &g, unsigned char &b, int fade, bool protect)
+{
+	recalcColor(r, fade);
+	recalcColor(g, fade);
+	recalcColor(b, fade);
+	protectColor(r,g,b, protect);
+}