framework2

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#include "ofGraphicsCairo.h"
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#include "ofRendererCollection.h"
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#include "ofCairoRenderer.h"
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static std::shared_ptr<ofCairoRenderer> cairoScreenshot;
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static std::shared_ptr<ofBaseRenderer> storedRenderer;
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static std::shared_ptr<ofRendererCollection> rendererCollection;
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static bool bScreenShotStarted = false;
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static void ofEndSaveScreen(){
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	if( bScreenShotStarted ){
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		if( cairoScreenshot ){
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			cairoScreenshot->close();
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			rendererCollection.reset();
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			cairoScreenshot.reset();
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		}
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		if( storedRenderer ){
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			ofSetCurrentRenderer(storedRenderer,true);
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			storedRenderer.reset();
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		}
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		bScreenShotStarted = false;
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	}
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}
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static void ofBeginSaveScreen(std::string filename, ofCairoRenderer::Type type, bool bMultipage, bool b3D, ofRectangle outputsize){
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	if( bScreenShotStarted ) ofEndSaveScreen();
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	storedRenderer = ofGetCurrentRenderer();
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	cairoScreenshot = std::make_unique<ofCairoRenderer>();
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	cairoScreenshot->setup(filename, type, bMultipage, b3D, outputsize);
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	rendererCollection = std::make_shared<ofRendererCollection>();
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	rendererCollection->renderers.push_back(storedRenderer);
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	rendererCollection->renderers.push_back(cairoScreenshot);
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	ofSetCurrentRenderer(rendererCollection, true);
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	cairoScreenshot->background(cairoScreenshot->getStyle().bgColor);
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	bScreenShotStarted = true;
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}
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//-----------------------------------------------------------------------------------
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void ofBeginSaveScreenAsPDF(std::string filename, bool bMultipage, bool b3D, ofRectangle outputsize){
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	ofBeginSaveScreen(filename, ofCairoRenderer::PDF, bMultipage, b3D, outputsize);
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}
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//-----------------------------------------------------------------------------------
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void ofEndSaveScreenAsPDF(){
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	ofEndSaveScreen();
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}
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//-----------------------------------------------------------------------------------
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void ofBeginSaveScreenAsSVG(std::string filename, bool bMultipage, bool b3D, ofRectangle outputsize){
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	ofBeginSaveScreen(filename, ofCairoRenderer::SVG, bMultipage, b3D, outputsize);
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}
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//-----------------------------------------------------------------------------------
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void ofEndSaveScreenAsSVG(){
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	ofEndSaveScreen();
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}