86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/******************************************************************************
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* QSkinny - Copyright (C) The authors
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* SPDX-License-Identifier: BSD-3-Clause
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*****************************************************************************/
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#include "QskBoxClipNode.h"
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#include "QskBoxBorderMetrics.h"
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#include "QskBoxRenderer.h"
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#include "QskBoxShapeMetrics.h"
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#include "QskFunctions.h"
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#include <qquickitem.h>
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static inline QskHashValue qskMetricsHash(
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const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& border )
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{
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QskHashValue hash = 13000;
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hash = shape.hash( hash );
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return border.hash( hash );
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}
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QskBoxClipNode::QskBoxClipNode()
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: m_hash( 0 )
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, m_geometry( QSGGeometry::defaultAttributes_Point2D(), 0 )
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{
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setGeometry( &m_geometry );
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}
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QskBoxClipNode::~QskBoxClipNode()
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{
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}
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void QskBoxClipNode::setBox( const QQuickWindow* window, const QRectF& rect,
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const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& border )
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{
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const auto hash = qskMetricsHash( shape, border );
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if ( hash == m_hash && rect == m_rect )
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return;
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m_rect = rect;
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m_hash = hash;
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bool isRectangular = false;
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#if 0
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/*
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Depending on isRectangular the "renderer can use scissoring instead of stencil,
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which is significantly faster."
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However the batch renderer ( qsgbatchrenderer.cpp ) is rounding the clip rectangle
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to integers and the clip might become too small/large.
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So we always have to use stencil clipping - even if it might have a negative
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impact on the performance. TODO ...
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*/
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if ( shape.isRectangle() )
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isRectangular = true;
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#endif
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if ( isRectangular )
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{
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if ( m_geometry.vertexCount() > 0 )
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m_geometry.allocate( 0 );
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setIsRectangular( true );
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}
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else
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{
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setIsRectangular( false );
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QskBoxRenderer renderer( window );
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renderer.setFillLines( rect, shape, border, m_geometry );
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}
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/*
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Even in situations, where the clipping is not rectangular, it is
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useful to know its bounding rectangle
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*/
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setClipRect( qskValidOrEmptyInnerRect( rect, border.widths() ) );
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m_geometry.markVertexDataDirty();
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markDirty( QSGNode::DirtyGeometry );
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}
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