qskinny/src/nodes/QskBoxFillNode.cpp
2022-12-22 20:13:45 +01:00

140 lines
3.8 KiB
C++

/******************************************************************************
* QSkinny - Copyright (C) 2016 Uwe Rathmann
* This file may be used under the terms of the QSkinny License, Version 1.0
*****************************************************************************/
#include "QskBoxFillNode.h"
#include "QskGradientMaterial.h"
#include "QskGradient.h"
#include "QskGradientDirection.h"
#include "QskBoxShapeMetrics.h"
#include "QskBoxBorderMetrics.h"
#include "QskBoxRenderer.h"
#include "QskSGNode.h"
#include <qsgflatcolormaterial.h>
QSK_QT_PRIVATE_BEGIN
#include <private/qsgnode_p.h>
QSK_QT_PRIVATE_END
static inline QskHashValue qskMetricsHash(
const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& borderMetrics )
{
QskHashValue hash = 13000;
hash = shape.hash( hash );
return borderMetrics.hash( hash );
}
class QskBoxFillNodePrivate final : public QSGGeometryNodePrivate
{
public:
QskBoxFillNodePrivate()
: geometry( QSGGeometry::defaultAttributes_Point2D(), 0 )
{
}
inline void resetValues()
{
rect = QRectF();
gradientHash = 0;
metricsHash = 0;
}
QRectF rect;
QskHashValue gradientHash = 0;
QskHashValue metricsHash = 0;
QSGGeometry geometry;
int gradientType = -1;
};
QskBoxFillNode::QskBoxFillNode()
: QSGGeometryNode( *new QskBoxFillNodePrivate )
{
Q_D( QskBoxFillNode );
setGeometry( &d->geometry );
setMaterial( new QSGFlatColorMaterial() );
setFlag( QSGNode::OwnsMaterial, true );
}
void QskBoxFillNode::updateNode( const QRectF& rect, const QskGradient& gradient )
{
updateNode( rect, QskBoxShapeMetrics(), QskBoxBorderMetrics(), gradient );
}
void QskBoxFillNode::updateNode(
const QRectF& rect, const QskBoxShapeMetrics& shapeMetrics,
const QskBoxBorderMetrics& borderMetrics, const QskGradient& gradient )
{
Q_D( QskBoxFillNode );
if ( rect.isEmpty() || !gradient.isVisible() )
{
d->resetValues();
QskSGNode::resetGeometry( this );
return;
}
const auto metricsHash = qskMetricsHash( shapeMetrics, borderMetrics );
const auto gradientHash = gradient.hash( 22879 );
const bool dirtyColors = gradientHash != d->gradientHash;
const bool dirtyMetrics = ( metricsHash != d->metricsHash ) || ( rect != d->rect );
d->metricsHash = metricsHash;
d->gradientHash = gradientHash;
d->rect = rect;
if ( dirtyMetrics )
{
QskBoxRenderer::renderFill( rect, shapeMetrics, borderMetrics, d->geometry );
markDirty( QSGNode::DirtyGeometry );
}
if ( gradient.isMonochrome() )
{
if ( dirtyColors )
{
if ( material() == nullptr || d->gradientType >= 0 )
{
setMaterial( new QSGFlatColorMaterial() );
d->gradientType = -1;
}
const auto color = gradient.startColor().toRgb();
auto mat = static_cast< QSGFlatColorMaterial* >( material() );
if ( mat->color() != color )
{
mat->setColor( color );
markDirty( QSGNode::DirtyMaterial );
}
}
}
else
{
// dirtyMetrics: the shader also depends on the target rectangle !
if ( dirtyColors || dirtyMetrics )
{
const auto effectiveGradient = gradient.effectiveGradient();
const auto gradientType = effectiveGradient.type();
if ( ( material() == nullptr ) || ( gradientType != d->gradientType ) )
{
setMaterial( QskGradientMaterial::createMaterial( gradientType ) );
d->gradientType = gradientType;
}
auto mat = static_cast< QskGradientMaterial* >( material() );
if ( mat->updateGradient( rect, effectiveGradient ) )
markDirty( QSGNode::DirtyMaterial );
}
}
}