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qskinny/src/nodes/QskArcRenderer.h

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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.
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/******************************************************************************
* QSkinny - Copyright (C) 2016 Uwe Rathmann
BSD-3-Clause license
2023-04-06 09:23:37 +02:00
* SPDX-License-Identifier: BSD-3-Clause
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.
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*****************************************************************************/
#ifndef QSK_ARC_RENDERER_H
#define QSK_ARC_RENDERER_H
#include "QskGlobal.h"
class QskArcMetrics;
QskArcNode is a QskShapeNode now. The performance of the previous implementation was simply horrible, when drawing an arc with a small span angle. The size of the corresponding full circle is huge and the previous implementation always created an image/texture with that size. However the final implementation is supposed to create vertex lists - like what the box renderer does. So this code will also not stay forever.
2023-04-12 12:19:26 +02:00
class QPainterPath;
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 07:50:25 +02:00
class QRectF;
working on arcs
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class QSizeF;
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 07:50:25 +02:00
API of classes dealing with arcs improved
2023-04-11 13:04:10 +02:00
namespace QskArcRenderer
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.
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{
working on arcs
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// radius
QSK_EXPORT QPainterPath arcPath( qreal radius, const QskArcMetrics& );
QSK_EXPORT QRectF arcRect( qreal radius, const QskArcMetrics& );
// diameter
QSK_EXPORT QPainterPath arcPath( const QSizeF&, const QskArcMetrics& );
QSK_EXPORT QSizeF arcSize( const QSizeF&, const QskArcMetrics& );
QSK_EXPORT QRectF arcRect( const QSizeF&, const QskArcMetrics& );
// bounding rectangle
QskArcNode is a QskShapeNode now. The performance of the previous implementation was simply horrible, when drawing an arc with a small span angle. The size of the corresponding full circle is huge and the previous implementation always created an image/texture with that size. However the final implementation is supposed to create vertex lists - like what the box renderer does. So this code will also not stay forever.
2023-04-12 12:19:26 +02:00
QSK_EXPORT QPainterPath arcPath( const QRectF&, const QskArcMetrics& );
working on arcs
2023-04-14 09:47:10 +02:00
QSK_EXPORT QRectF arcRect( const QRectF&, const QskArcMetrics& );
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 07:50:25 +02:00
};
#endif
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