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using QTransform

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This commit is contained in:
Uwe Rathmann 2022-12-21 13:26:23 +01:00
parent 5725be4470
commit b98791c421
1 changed files with 11 additions and 24 deletions
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35
src/common/QskGradient.cpp
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@ -650,10 +650,7 @@ QGradient QskGradient::toQGradient( const QRectF& rect ) const
if ( qGradient.coordinateMode() != QGradient::ObjectMode )
return qGradient;
const qreal x = rect.x();
const qreal y = rect.y();
const qreal w = rect.width();
const qreal h = rect.height();
const QTransform transform( rect.width(), 0, 0, rect.height(), rect.x(), rect.y() );
switch( qGradient.type() )
{
@ -661,13 +658,8 @@ QGradient QskGradient::toQGradient( const QRectF& rect ) const
{
auto& g = *static_cast< QLinearGradient* >( &qGradient );
const auto x1 = x + g.start().x() * w;
const auto y1 = y + g.start().y() * h;
const auto x2 = x + g.finalStop().x() * w;
const auto y2 = y + g.finalStop().y() * h;
g.setStart( x1, y1 );
g.setFinalStop( x2, y2 );
g.setStart( transform.map( g.start() ) );
g.setFinalStop( transform.map( g.finalStop() ) );
break;
}
@ -675,28 +667,23 @@ QGradient QskGradient::toQGradient( const QRectF& rect ) const
{
auto& g = *static_cast< QRadialGradient* >( &qGradient );
const qreal x0 = x + g.center().x() * w;
const qreal y0 = y + g.center().y() * h;
const auto center = transform.map( g.center() );
const qreal rx = w * g.radius() * w;
const qreal ry = w * g.radius() * h;
const qreal radius = qMin( g.radius() * rect.width(),
g.radius() * rect.height() );
g.setCenter( x0, y0 );
g.setFocalPoint( x0, y0 );
g.setCenter( center );
g.setFocalPoint( center );
g.setCenterRadius( qMin( rx, ry ) );
g.setFocalRadius( qMin( rx, ry ) );
g.setCenterRadius( radius );
g.setFocalRadius( radius );
break;
}
case QGradient::ConicalGradient:
{
auto& g = *static_cast< QConicalGradient* >( &qGradient );
const qreal x0 = x + g.center().x() * w;
const qreal y0 = y + g.center().y() * h;
g.setCenter( x0, y0 );
g.setCenter( transform.map( g.center() ) );
break;
}