95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* This file may be used under the terms of the QSkinny License, Version 1.0
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*****************************************************************************/
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#include "QskRgbPalette.h"
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#include "QskRgbValue.h"
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#include "QskGradient.h"
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#define RGB( color, weight ) color ## weight
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#define RGBTABLE( c ) \
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{ \
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RGB( c, 50 ), RGB( c, 100 ), RGB( c, 200 ), RGB( c, 300 ), RGB( c, 400 ), \
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RGB( c, 500 ), RGB( c, 600 ), RGB( c, 700 ), RGB( c, 800 ), RGB( c, 900 ) \
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}
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namespace
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{
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class Palette : public QskRgbPalette
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{
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public:
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Palette( int index )
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{
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using namespace QskRgbValue;
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static constexpr QRgb table[][ Palette::NumWeights ] =
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{
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RGBTABLE( Red ),
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RGBTABLE( Pink ),
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RGBTABLE( Purple ),
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RGBTABLE( DeepPurple ),
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RGBTABLE( Indigo ),
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RGBTABLE( Blue ),
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RGBTABLE( LightBlue ),
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RGBTABLE( Cyan ),
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RGBTABLE( Teal ),
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RGBTABLE( Green ),
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RGBTABLE( LightGreen ),
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RGBTABLE( Lime ),
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RGBTABLE( Yellow ),
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RGBTABLE( Amber ),
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RGBTABLE( Orange ),
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RGBTABLE( DeepOrange ),
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RGBTABLE( Brown ),
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RGBTABLE( Grey ),
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RGBTABLE( BlueGrey ),
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};
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const int count = sizeof( table ) / sizeof( table[ 0 ] );
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m_rgb = table[ qBound( 0, index, count ) ];
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}
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};
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}
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QskRgbPalette QskRgbPalette::palette( Theme theme )
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{
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return Palette( static_cast< int >( theme ) );
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}
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QVector< QskGradientStop > QskRgbPalette::colorStops( bool discrete ) const
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{
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QVector< QskGradientStop > stops;
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if ( discrete )
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stops.reserve( 2 * QskRgbPalette::NumWeights - 2 );
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else
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stops.reserve( QskRgbPalette::NumWeights );
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stops += QskGradientStop( 0.0, m_rgb[0] );
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if ( discrete )
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{
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constexpr auto step = 1.0 / NumWeights;
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for ( int i = 1; i < NumWeights; i++ )
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{
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const qreal pos = i * step;
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stops += QskGradientStop( pos, m_rgb[i-1] );
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stops += QskGradientStop( pos, m_rgb[i] );
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}
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}
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else
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{
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constexpr auto step = 1.0 / ( NumWeights - 1 );
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for ( int i = 1; i < NumWeights - 1; i++ )
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stops += QskGradientStop( i * step, m_rgb[i] );
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}
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stops += QskGradientStop( 1.0, m_rgb[NumWeights - 1] );
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return stops;
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}
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