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qgslayoutexporter.cpp
2085 lines (1776 loc) · 71.5 KB
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qgslayoutexporter.cpp
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/***************************************************************************
qgslayoutexporter.cpp
-------------------
begin : October 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. *
* *
***************************************************************************/
#include "qgslayoutexporter.h"
#ifndef QT_NO_PRINTER
#include "qgslayout.h"
#include "qgslayoutitemmap.h"
#include "qgslayoutpagecollection.h"
#include "qgsogrutils.h"
#include "qgspaintenginehack.h"
#include "qgslayoutguidecollection.h"
#include "qgsabstractlayoutiterator.h"
#include "qgsfeedback.h"
#include "qgslayoutgeopdfexporter.h"
#include "qgslinestring.h"
#include "qgsmessagelog.h"
#include "qgslabelingresults.h"
#include <QImageWriter>
#include <QSize>
#include <QSvgGenerator>
#include <QBuffer>
#include <QTimeZone>
#include <QTextStream>
#include "gdal.h"
#include "cpl_conv.h"
///@cond PRIVATE
class LayoutContextPreviewSettingRestorer
{
public:
LayoutContextPreviewSettingRestorer( QgsLayout *layout )
: mLayout( layout )
, mPreviousSetting( layout->renderContext().mIsPreviewRender )
{
mLayout->renderContext().mIsPreviewRender = false;
}
~LayoutContextPreviewSettingRestorer()
{
mLayout->renderContext().mIsPreviewRender = mPreviousSetting;
}
LayoutContextPreviewSettingRestorer( const LayoutContextPreviewSettingRestorer &other ) = delete;
LayoutContextPreviewSettingRestorer &operator=( const LayoutContextPreviewSettingRestorer &other ) = delete;
private:
QgsLayout *mLayout = nullptr;
bool mPreviousSetting = false;
};
class LayoutGuideHider
{
public:
LayoutGuideHider( QgsLayout *layout )
: mLayout( layout )
{
const QList< QgsLayoutGuide * > guides = mLayout->guides().guides();
for ( QgsLayoutGuide *guide : guides )
{
mPrevVisibility.insert( guide, guide->item()->isVisible() );
guide->item()->setVisible( false );
}
}
~LayoutGuideHider()
{
for ( auto it = mPrevVisibility.constBegin(); it != mPrevVisibility.constEnd(); ++it )
{
it.key()->item()->setVisible( it.value() );
}
}
LayoutGuideHider( const LayoutGuideHider &other ) = delete;
LayoutGuideHider &operator=( const LayoutGuideHider &other ) = delete;
private:
QgsLayout *mLayout = nullptr;
QHash< QgsLayoutGuide *, bool > mPrevVisibility;
};
class LayoutItemHider
{
public:
explicit LayoutItemHider( const QList<QGraphicsItem *> &items )
{
mItemsToIterate.reserve( items.count() );
for ( QGraphicsItem *item : items )
{
const bool isVisible = item->isVisible();
mPrevVisibility[item] = isVisible;
if ( isVisible )
mItemsToIterate.append( item );
if ( QgsLayoutItem *layoutItem = dynamic_cast< QgsLayoutItem * >( item ) )
layoutItem->setProperty( "wasVisible", isVisible );
item->hide();
}
}
void hideAll()
{
for ( auto it = mPrevVisibility.constBegin(); it != mPrevVisibility.constEnd(); ++it )
{
it.key()->hide();
}
}
~LayoutItemHider()
{
for ( auto it = mPrevVisibility.constBegin(); it != mPrevVisibility.constEnd(); ++it )
{
it.key()->setVisible( it.value() );
if ( QgsLayoutItem *layoutItem = dynamic_cast< QgsLayoutItem * >( it.key() ) )
layoutItem->setProperty( "wasVisible", QVariant() );
}
}
QList< QGraphicsItem * > itemsToIterate() const { return mItemsToIterate; }
LayoutItemHider( const LayoutItemHider &other ) = delete;
LayoutItemHider &operator=( const LayoutItemHider &other ) = delete;
private:
QList<QGraphicsItem * > mItemsToIterate;
QHash<QGraphicsItem *, bool> mPrevVisibility;
};
///@endcond PRIVATE
QgsLayoutExporter::QgsLayoutExporter( QgsLayout *layout )
: mLayout( layout )
{
}
QgsLayoutExporter::~QgsLayoutExporter()
{
qDeleteAll( mLabelingResults );
}
QgsLayout *QgsLayoutExporter::layout() const
{
return mLayout;
}
void QgsLayoutExporter::renderPage( QPainter *painter, int page ) const
{
if ( !mLayout )
return;
if ( mLayout->pageCollection()->pageCount() <= page || page < 0 )
{
return;
}
QgsLayoutItemPage *pageItem = mLayout->pageCollection()->page( page );
if ( !pageItem )
{
return;
}
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
QRectF paperRect = QRectF( pageItem->pos().x(), pageItem->pos().y(), pageItem->rect().width(), pageItem->rect().height() );
renderRegion( painter, paperRect );
}
QImage QgsLayoutExporter::renderPageToImage( int page, QSize imageSize, double dpi ) const
{
if ( !mLayout )
return QImage();
if ( mLayout->pageCollection()->pageCount() <= page || page < 0 )
{
return QImage();
}
QgsLayoutItemPage *pageItem = mLayout->pageCollection()->page( page );
if ( !pageItem )
{
return QImage();
}
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
QRectF paperRect = QRectF( pageItem->pos().x(), pageItem->pos().y(), pageItem->rect().width(), pageItem->rect().height() );
const double imageAspectRatio = static_cast< double >( imageSize.width() ) / imageSize.height();
const double paperAspectRatio = paperRect.width() / paperRect.height();
if ( imageSize.isValid() && ( !qgsDoubleNear( imageAspectRatio, paperAspectRatio, 0.008 ) ) )
{
// specified image size is wrong aspect ratio for paper rect - so ignore it and just use dpi
// this can happen e.g. as a result of data defined page sizes
// see https://github.com/qgis/QGIS/issues/26422
QgsMessageLog::logMessage( QObject::tr( "Ignoring custom image size because aspect ratio %1 does not match paper ratio %2" ).arg( QString::number( imageAspectRatio, 'g', 3 ), QString::number( paperAspectRatio, 'g', 3 ) ), QStringLiteral( "Layout" ), Qgis::MessageLevel::Warning );
imageSize = QSize();
}
return renderRegionToImage( paperRect, imageSize, dpi );
}
///@cond PRIVATE
class LayoutItemCacheSettingRestorer
{
public:
LayoutItemCacheSettingRestorer( QgsLayout *layout )
: mLayout( layout )
{
const QList< QGraphicsItem * > items = mLayout->items();
for ( QGraphicsItem *item : items )
{
mPrevCacheMode.insert( item, item->cacheMode() );
item->setCacheMode( QGraphicsItem::NoCache );
}
}
~LayoutItemCacheSettingRestorer()
{
for ( auto it = mPrevCacheMode.constBegin(); it != mPrevCacheMode.constEnd(); ++it )
{
it.key()->setCacheMode( it.value() );
}
}
LayoutItemCacheSettingRestorer( const LayoutItemCacheSettingRestorer &other ) = delete;
LayoutItemCacheSettingRestorer &operator=( const LayoutItemCacheSettingRestorer &other ) = delete;
private:
QgsLayout *mLayout = nullptr;
QHash< QGraphicsItem *, QGraphicsItem::CacheMode > mPrevCacheMode;
};
///@endcond PRIVATE
void QgsLayoutExporter::renderRegion( QPainter *painter, const QRectF ®ion ) const
{
QPaintDevice *paintDevice = painter->device();
if ( !paintDevice || !mLayout )
{
return;
}
LayoutItemCacheSettingRestorer cacheRestorer( mLayout );
( void )cacheRestorer;
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
LayoutGuideHider guideHider( mLayout );
( void ) guideHider;
painter->setRenderHint( QPainter::Antialiasing, mLayout->renderContext().flags() & QgsLayoutRenderContext::FlagAntialiasing );
mLayout->render( painter, QRectF( 0, 0, paintDevice->width(), paintDevice->height() ), region );
}
QImage QgsLayoutExporter::renderRegionToImage( const QRectF ®ion, QSize imageSize, double dpi ) const
{
if ( !mLayout )
return QImage();
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
double resolution = mLayout->renderContext().dpi();
double oneInchInLayoutUnits = mLayout->convertToLayoutUnits( QgsLayoutMeasurement( 1, QgsUnitTypes::LayoutInches ) );
if ( imageSize.isValid() )
{
//output size in pixels specified, calculate resolution using average of
//derived x/y dpi
resolution = ( imageSize.width() / region.width()
+ imageSize.height() / region.height() ) / 2.0 * oneInchInLayoutUnits;
}
else if ( dpi > 0 )
{
//dpi overridden by function parameters
resolution = dpi;
}
int width = imageSize.isValid() ? imageSize.width()
: static_cast< int >( resolution * region.width() / oneInchInLayoutUnits );
int height = imageSize.isValid() ? imageSize.height()
: static_cast< int >( resolution * region.height() / oneInchInLayoutUnits );
QImage image( QSize( width, height ), QImage::Format_ARGB32 );
if ( !image.isNull() )
{
// see https://doc.qt.io/qt-5/qpainter.html#limitations
if ( width > 32768 || height > 32768 )
QgsMessageLog::logMessage( QObject::tr( "Error: output width or height is larger than 32768 pixel, result will be clipped" ) );
image.setDotsPerMeterX( static_cast< int >( std::round( resolution / 25.4 * 1000 ) ) );
image.setDotsPerMeterY( static_cast< int>( std::round( resolution / 25.4 * 1000 ) ) );
image.fill( Qt::transparent );
QPainter imagePainter( &image );
renderRegion( &imagePainter, region );
if ( !imagePainter.isActive() )
return QImage();
}
return image;
}
///@cond PRIVATE
class LayoutContextSettingsRestorer
{
public:
Q_NOWARN_DEPRECATED_PUSH
LayoutContextSettingsRestorer( QgsLayout *layout )
: mLayout( layout )
, mPreviousDpi( layout->renderContext().dpi() )
, mPreviousFlags( layout->renderContext().flags() )
, mPreviousTextFormat( layout->renderContext().textRenderFormat() )
, mPreviousExportLayer( layout->renderContext().currentExportLayer() )
, mPreviousSimplifyMethod( layout->renderContext().simplifyMethod() )
, mExportThemes( layout->renderContext().exportThemes() )
, mPredefinedScales( layout->renderContext().predefinedScales() )
{
}
Q_NOWARN_DEPRECATED_POP
~LayoutContextSettingsRestorer()
{
mLayout->renderContext().setDpi( mPreviousDpi );
mLayout->renderContext().setFlags( mPreviousFlags );
mLayout->renderContext().setTextRenderFormat( mPreviousTextFormat );
Q_NOWARN_DEPRECATED_PUSH
mLayout->renderContext().setCurrentExportLayer( mPreviousExportLayer );
Q_NOWARN_DEPRECATED_POP
mLayout->renderContext().setSimplifyMethod( mPreviousSimplifyMethod );
mLayout->renderContext().setExportThemes( mExportThemes );
mLayout->renderContext().setPredefinedScales( mPredefinedScales );
}
LayoutContextSettingsRestorer( const LayoutContextSettingsRestorer &other ) = delete;
LayoutContextSettingsRestorer &operator=( const LayoutContextSettingsRestorer &other ) = delete;
private:
QgsLayout *mLayout = nullptr;
double mPreviousDpi = 0;
QgsLayoutRenderContext::Flags mPreviousFlags = QgsLayoutRenderContext::Flags();
Qgis::TextRenderFormat mPreviousTextFormat = Qgis::TextRenderFormat::AlwaysOutlines;
int mPreviousExportLayer = 0;
QgsVectorSimplifyMethod mPreviousSimplifyMethod;
QStringList mExportThemes;
QVector< double > mPredefinedScales;
};
///@endcond PRIVATE
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToImage( const QString &filePath, const QgsLayoutExporter::ImageExportSettings &s )
{
if ( !mLayout )
return PrintError;
ImageExportSettings settings = s;
if ( settings.dpi <= 0 )
settings.dpi = mLayout->renderContext().dpi();
mErrorFileName.clear();
int worldFilePageNo = -1;
if ( QgsLayoutItemMap *referenceMap = mLayout->referenceMap() )
{
worldFilePageNo = referenceMap->page();
}
QFileInfo fi( filePath );
PageExportDetails pageDetails;
pageDetails.directory = fi.path();
pageDetails.baseName = fi.completeBaseName();
pageDetails.extension = fi.suffix();
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
LayoutContextSettingsRestorer dpiRestorer( mLayout );
( void )dpiRestorer;
mLayout->renderContext().setDpi( settings.dpi );
mLayout->renderContext().setFlags( settings.flags );
mLayout->renderContext().setPredefinedScales( settings.predefinedMapScales );
QList< int > pages;
if ( settings.pages.empty() )
{
for ( int page = 0; page < mLayout->pageCollection()->pageCount(); ++page )
pages << page;
}
else
{
for ( int page : std::as_const( settings.pages ) )
{
if ( page >= 0 && page < mLayout->pageCollection()->pageCount() )
pages << page;
}
}
for ( int page : std::as_const( pages ) )
{
if ( !mLayout->pageCollection()->shouldExportPage( page ) )
{
continue;
}
bool skip = false;
QRectF bounds;
QImage image = createImage( settings, page, bounds, skip );
if ( skip )
continue; // should skip this page, e.g. null size
pageDetails.page = page;
QString outputFilePath = generateFileName( pageDetails );
if ( image.isNull() )
{
mErrorFileName = outputFilePath;
return MemoryError;
}
if ( !saveImage( image, outputFilePath, pageDetails.extension, settings.exportMetadata ? mLayout->project() : nullptr ) )
{
mErrorFileName = outputFilePath;
return FileError;
}
const bool shouldGeoreference = ( page == worldFilePageNo );
if ( shouldGeoreference )
{
georeferenceOutputPrivate( outputFilePath, nullptr, bounds, settings.dpi, shouldGeoreference );
if ( settings.generateWorldFile )
{
// should generate world file for this page
double a, b, c, d, e, f;
if ( bounds.isValid() )
computeWorldFileParameters( bounds, a, b, c, d, e, f, settings.dpi );
else
computeWorldFileParameters( a, b, c, d, e, f, settings.dpi );
QFileInfo fi( outputFilePath );
// build the world file name
QString outputSuffix = fi.suffix();
QString worldFileName = fi.absolutePath() + '/' + fi.completeBaseName() + '.'
+ outputSuffix.at( 0 ) + outputSuffix.at( fi.suffix().size() - 1 ) + 'w';
writeWorldFile( worldFileName, a, b, c, d, e, f );
}
}
}
captureLabelingResults();
return Success;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToImage( QgsAbstractLayoutIterator *iterator, const QString &baseFilePath, const QString &extension, const QgsLayoutExporter::ImageExportSettings &settings, QString &error, QgsFeedback *feedback )
{
error.clear();
if ( !iterator->beginRender() )
return IteratorError;
int total = iterator->count();
double step = total > 0 ? 100.0 / total : 100.0;
int i = 0;
while ( iterator->next() )
{
if ( feedback )
{
if ( total > 0 )
feedback->setProperty( "progress", QObject::tr( "Exporting %1 of %2" ).arg( i + 1 ).arg( total ) );
else
feedback->setProperty( "progress", QObject::tr( "Exporting section %1" ).arg( i + 1 ).arg( total ) );
feedback->setProgress( step * i );
}
if ( feedback && feedback->isCanceled() )
{
iterator->endRender();
return Canceled;
}
QgsLayoutExporter exporter( iterator->layout() );
QString filePath = iterator->filePath( baseFilePath, extension );
ExportResult result = exporter.exportToImage( filePath, settings );
if ( result != Success )
{
if ( result == FileError )
error = QObject::tr( "Cannot write to %1. This file may be open in another application or may be an invalid path." ).arg( QDir::toNativeSeparators( filePath ) );
iterator->endRender();
return result;
}
i++;
}
if ( feedback )
{
feedback->setProgress( 100 );
}
iterator->endRender();
return Success;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToPdf( const QString &filePath, const QgsLayoutExporter::PdfExportSettings &s )
{
if ( !mLayout || mLayout->pageCollection()->pageCount() == 0 )
return PrintError;
PdfExportSettings settings = s;
if ( settings.dpi <= 0 )
settings.dpi = mLayout->renderContext().dpi();
mErrorFileName.clear();
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
LayoutContextSettingsRestorer contextRestorer( mLayout );
( void )contextRestorer;
mLayout->renderContext().setDpi( settings.dpi );
mLayout->renderContext().setPredefinedScales( settings.predefinedMapScales );
if ( settings.simplifyGeometries )
{
mLayout->renderContext().setSimplifyMethod( createExportSimplifyMethod() );
}
std::unique_ptr< QgsLayoutGeoPdfExporter > geoPdfExporter;
if ( settings.writeGeoPdf || settings.exportLayersAsSeperateFiles ) //#spellok
geoPdfExporter = std::make_unique< QgsLayoutGeoPdfExporter >( mLayout );
mLayout->renderContext().setFlags( settings.flags );
// If we are not printing as raster, temporarily disable advanced effects
// as QPrinter does not support composition modes and can result
// in items missing from the output
mLayout->renderContext().setFlag( QgsLayoutRenderContext::FlagUseAdvancedEffects, !settings.forceVectorOutput );
mLayout->renderContext().setFlag( QgsLayoutRenderContext::FlagForceVectorOutput, settings.forceVectorOutput );
mLayout->renderContext().setTextRenderFormat( settings.textRenderFormat );
mLayout->renderContext().setExportThemes( settings.exportThemes );
ExportResult result = Success;
if ( settings.writeGeoPdf || settings.exportLayersAsSeperateFiles ) //#spellok
{
mLayout->renderContext().setFlag( QgsLayoutRenderContext::FlagRenderLabelsByMapLayer, true );
// here we need to export layers to individual PDFs
PdfExportSettings subSettings = settings;
subSettings.writeGeoPdf = false;
subSettings.exportLayersAsSeperateFiles = false; //#spellok
const QList<QGraphicsItem *> items = mLayout->items( Qt::AscendingOrder );
QList< QgsLayoutGeoPdfExporter::ComponentLayerDetail > pdfComponents;
const QDir baseDir = settings.exportLayersAsSeperateFiles ? QFileInfo( filePath ).dir() : QDir(); //#spellok
const QString baseFileName = settings.exportLayersAsSeperateFiles ? QFileInfo( filePath ).completeBaseName() : QString(); //#spellok
auto exportFunc = [this, &subSettings, &pdfComponents, &geoPdfExporter, &settings, &baseDir, &baseFileName]( unsigned int layerId, const QgsLayoutItem::ExportLayerDetail & layerDetail )->QgsLayoutExporter::ExportResult
{
ExportResult layerExportResult = Success;
QPrinter printer;
QgsLayoutGeoPdfExporter::ComponentLayerDetail component;
component.name = layerDetail.name;
component.mapLayerId = layerDetail.mapLayerId;
component.opacity = layerDetail.opacity;
component.compositionMode = layerDetail.compositionMode;
component.group = layerDetail.mapTheme;
component.sourcePdfPath = settings.writeGeoPdf ? geoPdfExporter->generateTemporaryFilepath( QStringLiteral( "layer_%1.pdf" ).arg( layerId ) ) : baseDir.filePath( QStringLiteral( "%1_%2.pdf" ).arg( baseFileName ).arg( layerId, 4, 10, QChar( '0' ) ) );
pdfComponents << component;
preparePrintAsPdf( mLayout, printer, component.sourcePdfPath );
preparePrint( mLayout, printer, false );
QPainter p;
if ( !p.begin( &printer ) )
{
//error beginning print
return FileError;
}
layerExportResult = printPrivate( printer, p, false, subSettings.dpi, subSettings.rasterizeWholeImage );
p.end();
return layerExportResult;
};
result = handleLayeredExport( items, exportFunc );
if ( result != Success )
return result;
if ( settings.writeGeoPdf )
{
QgsAbstractGeoPdfExporter::ExportDetails details;
details.dpi = settings.dpi;
// TODO - multipages
QgsLayoutSize pageSize = mLayout->pageCollection()->page( 0 )->sizeWithUnits();
QgsLayoutSize pageSizeMM = mLayout->renderContext().measurementConverter().convert( pageSize, QgsUnitTypes::LayoutMillimeters );
details.pageSizeMm = pageSizeMM.toQSizeF();
if ( settings.exportMetadata )
{
// copy layout metadata to GeoPDF export settings
details.author = mLayout->project()->metadata().author();
details.producer = QStringLiteral( "QGIS %1" ).arg( Qgis::version() );
details.creator = QStringLiteral( "QGIS %1" ).arg( Qgis::version() );
details.creationDateTime = mLayout->project()->metadata().creationDateTime();
details.subject = mLayout->project()->metadata().abstract();
details.title = mLayout->project()->metadata().title();
details.keywords = mLayout->project()->metadata().keywords();
}
const QList< QgsMapLayer * > layers = mLayout->project()->mapLayers().values();
for ( const QgsMapLayer *layer : layers )
{
details.layerIdToPdfLayerTreeNameMap.insert( layer->id(), layer->name() );
}
if ( settings.appendGeoreference )
{
// setup georeferencing
QList< QgsLayoutItemMap * > maps;
mLayout->layoutItems( maps );
for ( QgsLayoutItemMap *map : std::as_const( maps ) )
{
QgsAbstractGeoPdfExporter::GeoReferencedSection georef;
georef.crs = map->crs();
const QPointF topLeft = map->mapToScene( QPointF( 0, 0 ) );
const QPointF topRight = map->mapToScene( QPointF( map->rect().width(), 0 ) );
const QPointF bottomLeft = map->mapToScene( QPointF( 0, map->rect().height() ) );
const QPointF bottomRight = map->mapToScene( QPointF( map->rect().width(), map->rect().height() ) );
const QgsLayoutPoint topLeftMm = mLayout->convertFromLayoutUnits( topLeft, QgsUnitTypes::LayoutMillimeters );
const QgsLayoutPoint topRightMm = mLayout->convertFromLayoutUnits( topRight, QgsUnitTypes::LayoutMillimeters );
const QgsLayoutPoint bottomLeftMm = mLayout->convertFromLayoutUnits( bottomLeft, QgsUnitTypes::LayoutMillimeters );
const QgsLayoutPoint bottomRightMm = mLayout->convertFromLayoutUnits( bottomRight, QgsUnitTypes::LayoutMillimeters );
georef.pageBoundsPolygon.setExteriorRing( new QgsLineString( QVector< QgsPointXY >() << QgsPointXY( topLeftMm.x(), topLeftMm.y() )
<< QgsPointXY( topRightMm.x(), topRightMm.y() )
<< QgsPointXY( bottomRightMm.x(), bottomRightMm.y() )
<< QgsPointXY( bottomLeftMm.x(), bottomLeftMm.y() )
<< QgsPointXY( topLeftMm.x(), topLeftMm.y() ) ) );
georef.controlPoints.reserve( 4 );
const QTransform t = map->layoutToMapCoordsTransform();
const QgsPointXY topLeftMap = t.map( topLeft );
const QgsPointXY topRightMap = t.map( topRight );
const QgsPointXY bottomLeftMap = t.map( bottomLeft );
const QgsPointXY bottomRightMap = t.map( bottomRight );
georef.controlPoints << QgsAbstractGeoPdfExporter::ControlPoint( QgsPointXY( topLeftMm.x(), topLeftMm.y() ), topLeftMap );
georef.controlPoints << QgsAbstractGeoPdfExporter::ControlPoint( QgsPointXY( topRightMm.x(), topRightMm.y() ), topRightMap );
georef.controlPoints << QgsAbstractGeoPdfExporter::ControlPoint( QgsPointXY( bottomLeftMm.x(), bottomLeftMm.y() ), bottomLeftMap );
georef.controlPoints << QgsAbstractGeoPdfExporter::ControlPoint( QgsPointXY( bottomRightMm.x(), bottomRightMm.y() ), bottomRightMap );
details.georeferencedSections << georef;
}
}
details.customLayerTreeGroups = geoPdfExporter->customLayerTreeGroups();
details.initialLayerVisibility = geoPdfExporter->initialLayerVisibility();
details.layerOrder = geoPdfExporter->layerOrder();
details.includeFeatures = settings.includeGeoPdfFeatures;
details.useOgcBestPracticeFormatGeoreferencing = settings.useOgcBestPracticeFormatGeoreferencing;
details.useIso32000ExtensionFormatGeoreferencing = settings.useIso32000ExtensionFormatGeoreferencing;
if ( !geoPdfExporter->finalize( pdfComponents, filePath, details ) )
result = PrintError;
}
else
{
result = Success;
}
}
else
{
QPrinter printer;
preparePrintAsPdf( mLayout, printer, filePath );
preparePrint( mLayout, printer, false );
QPainter p;
if ( !p.begin( &printer ) )
{
//error beginning print
return FileError;
}
result = printPrivate( printer, p, false, settings.dpi, settings.rasterizeWholeImage );
p.end();
bool shouldAppendGeoreference = settings.appendGeoreference && mLayout && mLayout->referenceMap() && mLayout->referenceMap()->page() == 0;
if ( settings.appendGeoreference || settings.exportMetadata )
{
georeferenceOutputPrivate( filePath, nullptr, QRectF(), settings.dpi, shouldAppendGeoreference, settings.exportMetadata );
}
}
captureLabelingResults();
return result;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToPdf( QgsAbstractLayoutIterator *iterator, const QString &fileName, const QgsLayoutExporter::PdfExportSettings &s, QString &error, QgsFeedback *feedback )
{
error.clear();
if ( !iterator->beginRender() )
return IteratorError;
PdfExportSettings settings = s;
QPrinter printer;
QPainter p;
int total = iterator->count();
double step = total > 0 ? 100.0 / total : 100.0;
int i = 0;
bool first = true;
while ( iterator->next() )
{
if ( feedback )
{
if ( total > 0 )
feedback->setProperty( "progress", QObject::tr( "Exporting %1 of %2" ).arg( i + 1 ).arg( total ) );
else
feedback->setProperty( "progress", QObject::tr( "Exporting section %1" ).arg( i + 1 ) );
feedback->setProgress( step * i );
}
if ( feedback && feedback->isCanceled() )
{
iterator->endRender();
return Canceled;
}
if ( s.dpi <= 0 )
settings.dpi = iterator->layout()->renderContext().dpi();
LayoutContextPreviewSettingRestorer restorer( iterator->layout() );
( void )restorer;
LayoutContextSettingsRestorer contextRestorer( iterator->layout() );
( void )contextRestorer;
iterator->layout()->renderContext().setDpi( settings.dpi );
iterator->layout()->renderContext().setFlags( settings.flags );
iterator->layout()->renderContext().setPredefinedScales( settings.predefinedMapScales );
if ( settings.simplifyGeometries )
{
iterator->layout()->renderContext().setSimplifyMethod( createExportSimplifyMethod() );
}
// If we are not printing as raster, temporarily disable advanced effects
// as QPrinter does not support composition modes and can result
// in items missing from the output
iterator->layout()->renderContext().setFlag( QgsLayoutRenderContext::FlagUseAdvancedEffects, !settings.forceVectorOutput );
iterator->layout()->renderContext().setFlag( QgsLayoutRenderContext::FlagForceVectorOutput, settings.forceVectorOutput );
iterator->layout()->renderContext().setTextRenderFormat( settings.textRenderFormat );
if ( first )
{
preparePrintAsPdf( iterator->layout(), printer, fileName );
preparePrint( iterator->layout(), printer, false );
if ( !p.begin( &printer ) )
{
//error beginning print
return PrintError;
}
}
QgsLayoutExporter exporter( iterator->layout() );
ExportResult result = exporter.printPrivate( printer, p, !first, settings.dpi, settings.rasterizeWholeImage );
if ( result != Success )
{
if ( result == FileError )
error = QObject::tr( "Cannot write to %1. This file may be open in another application or may be an invalid path." ).arg( QDir::toNativeSeparators( fileName ) );
iterator->endRender();
return result;
}
first = false;
i++;
}
if ( feedback )
{
feedback->setProgress( 100 );
}
iterator->endRender();
return Success;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToPdfs( QgsAbstractLayoutIterator *iterator, const QString &baseFilePath, const QgsLayoutExporter::PdfExportSettings &settings, QString &error, QgsFeedback *feedback )
{
error.clear();
if ( !iterator->beginRender() )
return IteratorError;
int total = iterator->count();
double step = total > 0 ? 100.0 / total : 100.0;
int i = 0;
while ( iterator->next() )
{
if ( feedback )
{
if ( total > 0 )
feedback->setProperty( "progress", QObject::tr( "Exporting %1 of %2" ).arg( i + 1 ).arg( total ) );
else
feedback->setProperty( "progress", QObject::tr( "Exporting section %1" ).arg( i + 1 ).arg( total ) );
feedback->setProgress( step * i );
}
if ( feedback && feedback->isCanceled() )
{
iterator->endRender();
return Canceled;
}
QString filePath = iterator->filePath( baseFilePath, QStringLiteral( "pdf" ) );
QgsLayoutExporter exporter( iterator->layout() );
ExportResult result = exporter.exportToPdf( filePath, settings );
if ( result != Success )
{
if ( result == FileError )
error = QObject::tr( "Cannot write to %1. This file may be open in another application or may be an invalid path." ).arg( QDir::toNativeSeparators( filePath ) );
iterator->endRender();
return result;
}
i++;
}
if ( feedback )
{
feedback->setProgress( 100 );
}
iterator->endRender();
return Success;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::print( QPrinter &printer, const QgsLayoutExporter::PrintExportSettings &s )
{
if ( !mLayout )
return PrintError;
QgsLayoutExporter::PrintExportSettings settings = s;
if ( settings.dpi <= 0 )
settings.dpi = mLayout->renderContext().dpi();
mErrorFileName.clear();
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
LayoutContextSettingsRestorer contextRestorer( mLayout );
( void )contextRestorer;
mLayout->renderContext().setDpi( settings.dpi );
mLayout->renderContext().setFlags( settings.flags );
mLayout->renderContext().setPredefinedScales( settings.predefinedMapScales );
// If we are not printing as raster, temporarily disable advanced effects
// as QPrinter does not support composition modes and can result
// in items missing from the output
mLayout->renderContext().setFlag( QgsLayoutRenderContext::FlagUseAdvancedEffects, !settings.rasterizeWholeImage );
preparePrint( mLayout, printer, true );
QPainter p;
if ( !p.begin( &printer ) )
{
//error beginning print
return PrintError;
}
ExportResult result = printPrivate( printer, p, false, settings.dpi, settings.rasterizeWholeImage );
p.end();
captureLabelingResults();
return result;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::print( QgsAbstractLayoutIterator *iterator, QPrinter &printer, const QgsLayoutExporter::PrintExportSettings &s, QString &error, QgsFeedback *feedback )
{
error.clear();
if ( !iterator->beginRender() )
return IteratorError;
PrintExportSettings settings = s;
QPainter p;
int total = iterator->count();
double step = total > 0 ? 100.0 / total : 100.0;
int i = 0;
bool first = true;
while ( iterator->next() )
{
if ( feedback )
{
if ( total > 0 )
feedback->setProperty( "progress", QObject::tr( "Printing %1 of %2" ).arg( i + 1 ).arg( total ) );
else
feedback->setProperty( "progress", QObject::tr( "Printing section %1" ).arg( i + 1 ).arg( total ) );
feedback->setProgress( step * i );
}
if ( feedback && feedback->isCanceled() )
{
iterator->endRender();
return Canceled;
}
if ( s.dpi <= 0 )
settings.dpi = iterator->layout()->renderContext().dpi();
LayoutContextPreviewSettingRestorer restorer( iterator->layout() );
( void )restorer;
LayoutContextSettingsRestorer contextRestorer( iterator->layout() );
( void )contextRestorer;
iterator->layout()->renderContext().setDpi( settings.dpi );
iterator->layout()->renderContext().setFlags( settings.flags );
iterator->layout()->renderContext().setPredefinedScales( settings.predefinedMapScales );
// If we are not printing as raster, temporarily disable advanced effects
// as QPrinter does not support composition modes and can result
// in items missing from the output
iterator->layout()->renderContext().setFlag( QgsLayoutRenderContext::FlagUseAdvancedEffects, !settings.rasterizeWholeImage );
if ( first )
{
preparePrint( iterator->layout(), printer, true );
if ( !p.begin( &printer ) )
{
//error beginning print
return PrintError;
}
}
QgsLayoutExporter exporter( iterator->layout() );
ExportResult result = exporter.printPrivate( printer, p, !first, settings.dpi, settings.rasterizeWholeImage );
if ( result != Success )
{
iterator->endRender();
return result;
}
first = false;
i++;
}
if ( feedback )
{
feedback->setProgress( 100 );
}
iterator->endRender();
return Success;
}
QgsLayoutExporter::ExportResult QgsLayoutExporter::exportToSvg( const QString &filePath, const QgsLayoutExporter::SvgExportSettings &s )
{
if ( !mLayout )
return PrintError;
SvgExportSettings settings = s;
if ( settings.dpi <= 0 )
settings.dpi = mLayout->renderContext().dpi();
mErrorFileName.clear();
LayoutContextPreviewSettingRestorer restorer( mLayout );
( void )restorer;
LayoutContextSettingsRestorer contextRestorer( mLayout );
( void )contextRestorer;
mLayout->renderContext().setDpi( settings.dpi );
mLayout->renderContext().setFlags( settings.flags );
mLayout->renderContext().setFlag( QgsLayoutRenderContext::FlagForceVectorOutput, settings.forceVectorOutput );
mLayout->renderContext().setTextRenderFormat( s.textRenderFormat );
mLayout->renderContext().setPredefinedScales( settings.predefinedMapScales );
if ( settings.simplifyGeometries )
{
mLayout->renderContext().setSimplifyMethod( createExportSimplifyMethod() );
}