QGIS API Documentation 3.27.0-Master (95e00c50d2)
qgspainterswapper.cpp
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1/***************************************************************************
2 qgspainterswapper.cpp
3 ---------------------
4 begin : July 2019
5 copyright : (C) 2019 Hugo Mercier
6 email : hugo dot mercier at oslandia dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17#include "qgspainterswapper.h"
18#include "qgsrendercontext.h"
19#include <QPainter>
20
21QgsPainterSwapper::QgsPainterSwapper( QgsRenderContext &renderContext, QPainter *newPainter )
22 : mRenderContext( renderContext )
23 , mOriginalPainter( renderContext.painter() )
24{
25 mRenderContext.setPainter( newPainter );
26}
27
29{
30 mRenderContext.setPainter( mOriginalPainter );
31}
QgsPainterSwapper(QgsRenderContext &renderContext, QPainter *newPainter)
QgsPainterSwapper constructor.
Contains information about the context of a rendering operation.
void setPainter(QPainter *p)
Sets the destination QPainter for the render operation.