57 lines
1.7 KiB
C++
57 lines
1.7 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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#ifndef QSK_ARC_RENDERER_H
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#define QSK_ARC_RENDERER_H
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#include "QskGlobal.h"
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#include "QskGradient.h"
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#include <QPainter>
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#include <QRect>
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class QSK_EXPORT QskArcRenderer
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{
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public:
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void renderArc( const QRectF& rect, const QskGradient& gradient,
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QGradient::Type gradientType, double width, int startAngle,
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int endAngle, QPainter* );
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};
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inline void QskArcRenderer::renderArc( const QRectF& rect,
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const QskGradient& gradient, QGradient::Type gradientType, double width,
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int startAngle, int spanAngle, QPainter* painter )
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{
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painter->setRenderHint( QPainter::Antialiasing, true );
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QGradientStops stops;
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for( const QskGradientStop& stop : gradient.stops() )
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{
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QGradientStop s( stop.position(), stop.color() );
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stops.append( s );
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}
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if( gradientType == QGradient::RadialGradient )
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{
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QRadialGradient radialGradient( rect.center(), qMin( rect.width(), rect.height() ) );
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radialGradient.setStops( stops );
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painter->setPen( QPen( radialGradient, width, Qt::SolidLine, Qt::FlatCap ) );
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painter->drawArc( rect, startAngle * 16, spanAngle * 16 );
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}
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else
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{
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QConicalGradient conicalGradient( rect.center(), startAngle );
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conicalGradient.setStops( stops );
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painter->setPen( QPen( conicalGradient, width, Qt::SolidLine, Qt::FlatCap ) );
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painter->drawArc( rect, startAngle * 16, spanAngle * 16 );
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}
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}
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#endif
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