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src
core
symbology
qgspainterswapper.cpp
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/***************************************************************************
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qgspainterswapper.cpp
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---------------------
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begin : July 2019
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copyright : (C) 2019 Hugo Mercier
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email : hugo dot mercier at oslandia dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "
qgspainterswapper.h
"
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#include "
qgsrendercontext.h
"
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#include <QPainter>
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QgsPainterSwapper::QgsPainterSwapper
(
QgsRenderContext
&renderContext, QPainter *newPainter )
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: mRenderContext( renderContext )
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, mOriginalPainter( renderContext.painter() )
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{
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mRenderContext.
setPainter
( newPainter );
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}
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QgsPainterSwapper::~QgsPainterSwapper
()
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{
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mRenderContext.
setPainter
( mOriginalPainter );
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}
QgsPainterSwapper::QgsPainterSwapper
QgsPainterSwapper(QgsRenderContext &renderContext, QPainter *newPainter)
QgsPainterSwapper constructor.
Definition
qgspainterswapper.cpp:21
QgsPainterSwapper::~QgsPainterSwapper
~QgsPainterSwapper()
Definition
qgspainterswapper.cpp:28
QgsRenderContext
Contains information about the context of a rendering operation.
Definition
qgsrendercontext.h:62
QgsRenderContext::setPainter
void setPainter(QPainter *p)
Sets the destination QPainter for the render operation.
Definition
qgsrendercontext.h:562
qgspainterswapper.h
qgsrendercontext.h
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