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qskinny/src/nodes/QskArcRenderer.cpp

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Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
/******************************************************************************
* QSkinny - Copyright (C) 2016 Uwe Rathmann
* This file may be used under the terms of the QSkinny License, Version 1.0
*****************************************************************************/
#include "QskArcRenderer.h"
#include "QskArcMetrics.h"
#include "QskGradient.h"
#include <qpainter.h>
#include <qrect.h>
void QskArcRenderer::renderArc(const QRectF& rect,
const QskArcMetrics& metrics, const QskGradient& gradient,
QPainter* painter )
{
painter->setRenderHint( QPainter::Antialiasing, true );
/*
horizontal is interpreted as in direction of the arc,
while vertical means from the inner to the outer border
*/
QBrush brush;
if( gradient.orientation() == QskGradient::Vertical )
{
QskGradient::qtStops added
2022-10-20 07:22:11 +00:00
QRadialGradient radial( rect.center(), qMin( rect.width(), rect.height() ) );
radial.setStops( gradient.qtStops() );
Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
QskGradient::qtStops added
2022-10-20 07:22:11 +00:00
brush = radial;
Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
}
else
{
QskGradient::qtStops added
2022-10-20 07:22:11 +00:00
QConicalGradient conical( rect.center(), metrics.startAngle() );
conical.setStops( gradient.qtStops() );
Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
QskGradient::qtStops added
2022-10-20 07:22:11 +00:00
brush = conical;
Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
}
painter->setPen( QPen( brush, metrics.width(), Qt::SolidLine, Qt::FlatCap ) );
using degrees for arcs ( not multiplied by 16, what QPainter wants )
2021-12-02 16:15:41 +00:00
const int startAngle = qRound( metrics.startAngle() * 16 );
const int spanAngle = qRound( metrics.spanAngle() * 16 );
painter->drawArc( rect, startAngle, spanAngle );
Iot dashboard arc rendering (#134) * add QskArcNode and QskArcRenderer * IOT example: Use QskArcNode instead of own arc node * move some functionality to the arc renderer * add QskArcMetrics * add methods to QskSkinlet * remove circular bar graph node We can now use updateArcNode() and don't need our own method. * support linear gradients in the arc renderer * clean up * incorporate Uwe's changes * add overloads for updateArcNode() when the angles are set dynamically The angles don't always come from the style, so we need overloads in QskSkinlet to set them dynamically.
2021-10-20 05:50:25 +00:00
}