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82 lines
2.8 KiB
82 lines
2.8 KiB
/***************************************************************************
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copyright : (C) 2004 by amarok squad
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email : amarok@kde.org
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***************************************************************************/
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/***************************************************************************
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License version *
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* 2.1 as published by the Free Software Foundation. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301 *
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* USA *
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***************************************************************************/
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#ifndef COLORGENERATOR_H
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#define COLORGENERATOR_H
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#include "debug.h"
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namespace Amarok {
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class Color : public TQColor
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{
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static const int CONTRAST = 130;
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static const int SATURATION_TARGET = 30;
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public:
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Color( const TQColor &c ) : TQColor( c )
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{
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DEBUG_BLOCK
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int h,s1,s,v1,v;
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getHsv( &h, &s1, &v1 );
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debug() << "Initial Color Properties: s:" << s1 << " v:" << v1 << endl;
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//we want the new colour to be low saturation
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//TODO what if s is less than SATURATION_TARGET to start with
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s = s1 - CONTRAST;
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v = v1;
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if ( s < SATURATION_TARGET ) {
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int remainingContrast = SATURATION_TARGET - s;
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s = SATURATION_TARGET;
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debug() << "Unapplied Contrast: " << remainingContrast << endl;
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//we only add to the value to avoid the dreaded "grey-gradient"
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v += remainingContrast;
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if ( v > 255 ) {
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int error = v - 255;
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debug() << "Over-compensation: " << error << endl;
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//if the error is significant then this must be a pretty bright colour
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//it would look better if the gradient was dark
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if( error > CONTRAST/2 )
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v = v1 - error;
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else
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v = 255;
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}
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}
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setHsv( h, s, v );
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debug() << "Final Colour Properties: s:" << s << " v:" << v << endl;
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}
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};
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}
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#endif
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