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QskBoxClipNode renamed to QskClipNode + more clip options added
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| /****************************************************************************** | ||
| * QSkinny - Copyright (C) The authors | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| *****************************************************************************/ | ||
|
|
||
| #include "QskClipNode.h" | ||
| #include "QskBoxBorderMetrics.h" | ||
| #include "QskBoxRenderer.h" | ||
| #include "QskBoxShapeMetrics.h" | ||
| #include "QskFunctions.h" | ||
| #include "QskVertex.h" | ||
|
|
||
| #include <qquickwindow.h> | ||
|
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||
| static inline QskHashValue qskMetricsHash( | ||
| const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& border ) | ||
| { | ||
| QskHashValue hash = 13000; | ||
|
|
||
| hash = shape.hash( hash ); | ||
| return border.hash( hash ); | ||
| } | ||
|
|
||
| static inline void qskSetBoundingRect( QSGClipNode* node, const QRectF& rect ) | ||
| { | ||
| /* | ||
| Depending on isRectangular: the "scene graph renderer can use | ||
| scissoring instead of stencil, which is significantly faster." | ||
| However the batch renderer ( qsgbatchrenderer.cpp ) is rounding | ||
| the clip rectangle to integers and the clip might become too small/large. | ||
| So we always have to use stencil clipping - even if it might have a negative | ||
| impact on the performance. | ||
| When isRectangular is set to false the clipRect is not used from the | ||
| renderer and we use the memory for the storing the bounding rectangle. | ||
| */ | ||
|
|
||
| node->setIsRectangular( false ); | ||
| node->setClipRect( rect ); | ||
| } | ||
|
|
||
| static inline QskVertex::Line* qskAllocateLines( | ||
| QSGGeometry& geometry, int lineCount ) | ||
| { | ||
| geometry.allocate( 2 * lineCount ); // 2 points per line | ||
| return reinterpret_cast< QskVertex::Line* >( geometry.vertexData() ); | ||
| } | ||
|
|
||
| QskClipNode::QskClipNode() | ||
| : m_hash( 0 ) | ||
| , m_geometry( QSGGeometry::defaultAttributes_Point2D(), 0 ) | ||
| { | ||
| setGeometry( &m_geometry ); | ||
| } | ||
|
|
||
| QskClipNode::~QskClipNode() | ||
| { | ||
| } | ||
|
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||
| void QskClipNode::setRect( const QRectF& rect ) | ||
| { | ||
| setRegion( rect, QRectF() ); | ||
| } | ||
|
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||
| void QskClipNode::setRegion( const QRectF& rect, const QRectF& excludedRect ) | ||
| { | ||
| if ( rect.isEmpty() ) | ||
| { | ||
| /* | ||
| what about rectangles having a width/height | ||
| of 0 ( f.e lines ) TODO ... | ||
| */ | ||
| reset(); | ||
| return; | ||
| } | ||
|
|
||
| const auto innerRect = excludedRect.isEmpty() | ||
| ? QRectF() : excludedRect.intersected( rect ); | ||
|
|
||
| const auto hash = qHashBits( &innerRect, sizeof( innerRect ), 1450 ); | ||
| if ( ( hash == m_hash ) && ( rect == Inherited::clipRect() ) ) | ||
| return; | ||
|
|
||
| qskSetBoundingRect( this, rect ); | ||
| m_hash = hash; | ||
|
|
||
| m_geometry.setDrawingMode( QSGGeometry::DrawTriangleStrip ); | ||
|
|
||
| if ( innerRect.isEmpty() ) | ||
| { | ||
| const auto l = qskAllocateLines( m_geometry, 2 ); | ||
|
|
||
| l[0].setLine( rect.topLeft(), rect.topRight() ); | ||
| l[1].setLine( rect.bottomLeft(), rect.bottomRight() ); | ||
| } | ||
| else | ||
| { | ||
| const auto l = qskAllocateLines( m_geometry, 5 ); | ||
|
|
||
| l[0].setLine( rect.topLeft(), innerRect.topLeft() ); | ||
| l[1].setLine( rect.topRight(), innerRect.topRight() ); | ||
| l[2].setLine( rect.bottomRight(), innerRect.bottomRight() ); | ||
| l[3].setLine( rect.bottomLeft(), innerRect.bottomLeft() ); | ||
| l[4] = l[0]; | ||
| } | ||
|
|
||
| m_geometry.markVertexDataDirty(); | ||
| markDirty( QSGNode::DirtyGeometry ); | ||
| } | ||
|
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||
| void QskClipNode::setBox( const QQuickWindow* window, const QRectF& rect, | ||
| const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& border ) | ||
| { | ||
| if ( rect.isEmpty() ) | ||
| { | ||
| reset(); | ||
| return; | ||
| } | ||
|
|
||
| const auto hash = qskMetricsHash( shape, border ); | ||
| if ( hash == m_hash && rect == boundingRectangle() ) | ||
| return; | ||
|
|
||
| qskSetBoundingRect( this, rect ); | ||
| m_hash = hash; | ||
|
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||
| QskBoxRenderer renderer( window ); | ||
| renderer.setFillLines( rect, shape, border, m_geometry ); | ||
|
|
||
| m_geometry.markVertexDataDirty(); | ||
| markDirty( QSGNode::DirtyGeometry ); | ||
| } | ||
|
|
||
| void QskClipNode::reset() | ||
| { | ||
| Inherited::setIsRectangular( true ); | ||
| Inherited::setClipRect( QRectF() ); | ||
|
|
||
| if ( m_geometry.vertexData() ) | ||
| { | ||
| m_geometry.allocate( 0 ); | ||
| m_geometry.markVertexDataDirty(); | ||
| } | ||
|
|
||
| if ( m_hash != 0 ) | ||
| { | ||
| m_hash = 0; | ||
| markDirty( QSGNode::DirtyGeometry ); | ||
| } | ||
| } |
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