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fallback code reorganized

This commit is contained in:
Uwe Rathmann 2023-05-28 12:44:29 +02:00
parent 5cda13568d
commit d7eca19685
1 changed files with 27 additions and 20 deletions
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47
playground/charts/CircularChartSkinlet.cpp
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@ -30,6 +30,31 @@
namespace namespace
{ {
QConicalGradient qskQConicalGradient(
const QskGradientStops& stops, qreal startAngle, qreal spanAngle )
{
QskGradientStops scaledStops;
scaledStops.reserve( stops.size() );
const auto ratio = qAbs( spanAngle ) / 360.0;
if ( spanAngle > 0.0 )
{
for ( auto it = stops.cbegin(); it != stops.cend(); ++it )
scaledStops += { ratio * it->position(), it->color() };
}
else
{
for ( auto it = stops.crbegin(); it != stops.crend(); ++it )
scaledStops += { 1.0 - ratio * it->position(), it->color() };
}
QConicalGradient qGradient( QPointF(), startAngle );
qGradient.setStops( qskToQGradientStops( scaledStops ) );
return qGradient;
}
class PaintedArcNode : public QskPaintedNode class PaintedArcNode : public QskPaintedNode
{ {
public: public:
@ -98,26 +123,8 @@ namespace
QBrush PaintedArcNode::fillBrush( const QskGradient& gradient, QBrush PaintedArcNode::fillBrush( const QskGradient& gradient,
const QRectF& rect, qreal startAngle, qreal spanAngle ) const const QRectF& rect, qreal startAngle, qreal spanAngle ) const
{ {
const auto stops = gradient.stops(); const auto qGradient = qskQConicalGradient(
gradient.stops(), startAngle, spanAngle );
QskGradientStops scaledStops;
scaledStops.reserve( gradient.stops().size() );
const auto ratio = qAbs( spanAngle ) / 360.0;
if ( spanAngle > 0.0 )
{
for ( auto it = stops.cbegin(); it != stops.cend(); ++it )
scaledStops += { ratio* it->position(), it->color() };
}
else
{
for ( auto it = stops.crbegin(); it != stops.crend(); ++it )
scaledStops += { 1.0 - ratio * it->position(), it->color() };
}
QConicalGradient qGradient( QPointF(), startAngle );
qGradient.setStops( qskToQGradientStops( scaledStops ) );
const qreal sz = qMax( rect.width(), rect.height() ); const qreal sz = qMax( rect.width(), rect.height() );
const qreal sx = rect.width() / sz; const qreal sx = rect.width() / sz;