qgslayoutrendercontext.h

Go to the documentation of this file.

/***************************************************************************
                             qgslayoutrendercontext.h
                             -------------------
    begin                : July 2017
    copyright            : (C) 2017 by Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************/
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSLAYOUTRENDERCONTEXT_H
#define QGSLAYOUTRENDERCONTEXT_H
 
#include "qgis_core.h"
#include "qgslayoutmeasurementconverter.h"
#include "qgsvectorsimplifymethod.h"
#include "qgis.h"
#include <QtGlobal>
#include <QColor>
#include <QVector>
 
class QgsLayout;
class QgsFeatureFilterProvider;
 
class CORE_EXPORT QgsLayoutRenderContext : public QObject
{
 
    Q_OBJECT
 
  public:
 
    enum Flag
    {
      FlagDebug = 1 << 1,  
      FlagOutlineOnly = 1 << 2, 
      FlagAntialiasing = 1 << 3, 
      FlagUseAdvancedEffects = 1 << 4, 
      FlagForceVectorOutput = 1 << 5, 
      FlagHideCoverageLayer = 1 << 6, 
      FlagDrawSelection = 1 << 7, 
      FlagDisableTiledRasterLayerRenders = 1 << 8, 
      FlagRenderLabelsByMapLayer = 1 << 9, 
      FlagLosslessImageRendering = 1 << 10, 
      FlagSynchronousLegendGraphics = 1 << 11 
    };
    Q_DECLARE_FLAGS( Flags, Flag )
 
    
    QgsLayoutRenderContext( QgsLayout *layout SIP_TRANSFERTHIS );
 
    void setFlags( QgsLayoutRenderContext::Flags flags );
 
    void setFlag( QgsLayoutRenderContext::Flag flag, bool on = true );
 
    QgsLayoutRenderContext::Flags flags() const;
 
    bool testFlag( Flag flag ) const;
 
    Qgis::RenderContextFlags renderContextFlags() const;
 
    void setDpi( double dpi );
 
    double dpi() const;
 
    void setSelectionColor( const QColor &color ) { mSelectionColor = color; }
 
    QColor selectionColor() const { return mSelectionColor; }
 
    SIP_SKIP const QgsLayoutMeasurementConverter &measurementConverter() const { return mMeasurementConverter; }
 
    QgsLayoutMeasurementConverter &measurementConverter() { return mMeasurementConverter; }
 
    bool isPreviewRender() const { return mIsPreviewRender; }
 
    bool gridVisible() const;
 
    void setGridVisible( bool visible );
 
    bool boundingBoxesVisible() const;
 
    void setBoundingBoxesVisible( bool visible );
 
    void setPagesVisible( bool visible );
 
    bool pagesVisible() const { return mPagesVisible; }
 
    Q_DECL_DEPRECATED void setCurrentExportLayer( int layer = -1 ) SIP_DEPRECATED { mCurrentExportLayer = layer; }
 
    Q_DECL_DEPRECATED int currentExportLayer() const SIP_DEPRECATED  { return mCurrentExportLayer; }
 
    Qgis::TextRenderFormat textRenderFormat() const
    {
      return mTextRenderFormat;
    }
 
    void setTextRenderFormat( Qgis::TextRenderFormat format )
    {
      mTextRenderFormat = format;
    }
 
    void setSimplifyMethod( const QgsVectorSimplifyMethod &method ) { mSimplifyMethod = method; }
 
    const QgsVectorSimplifyMethod &simplifyMethod() const { return mSimplifyMethod; }
 
    QStringList exportThemes() const;
 
    void setExportThemes( const QStringList &themes );
 
    void setPredefinedScales( const QVector<qreal> &scales );
 
    QVector<qreal> predefinedScales() const { return mPredefinedScales; }
 
    QgsFeatureFilterProvider *featureFilterProvider() const;
 
    void setFeatureFilterProvider( QgsFeatureFilterProvider *featureFilterProvider );
 
  signals:
 
    void flagsChanged( QgsLayoutRenderContext::Flags flags );
 
    void dpiChanged();
 
    void predefinedScalesChanged();
 
  private:
 
    Flags mFlags = Flags();
 
    QgsLayout *mLayout = nullptr;
 
    int mCurrentExportLayer = -1;
 
    QColor mSelectionColor = Qt::yellow;
 
    QgsLayoutMeasurementConverter mMeasurementConverter;
 
    bool mIsPreviewRender = true;
    bool mGridVisible = false;
    bool mBoundingBoxesVisible = true;
    bool mPagesVisible = true;
 
    Qgis::TextRenderFormat mTextRenderFormat = Qgis::TextRenderFormat::AlwaysOutlines;
 
    QStringList mExportThemes;
 
    QgsVectorSimplifyMethod mSimplifyMethod;
 
    QVector<qreal> mPredefinedScales;
 
    QgsFeatureFilterProvider *mFeatureFilterProvider = nullptr;
 
    friend class QgsLayoutExporter;
    friend class TestQgsLayout;
    friend class LayoutContextPreviewSettingRestorer;
    friend class TestQgsLayoutMap;
    friend class TestQgsLayoutLabel;
 
};
 
Q_DECLARE_METATYPE( QgsLayoutRenderContext::Flags )
 
#endif //QGSLAYOUTRENDERCONTEXT_H