/
qgscomposer.cpp
1567 lines (1342 loc) · 45.7 KB
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qgscomposer.cpp
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/***************************************************************************
qgscomposer.cpp - description
-------------------
begin : January 2005
copyright : (C) 2005 by Radim Blazek
email : blazek@itc.it
***************************************************************************/
/***************************************************************************
* *
* 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 "qgscomposer.h"
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgscomposerview.h"
#include "qgscomposition.h"
#include "qgscompositionwidget.h"
#include "qgscomposerarrow.h"
#include "qgscomposerarrowwidget.h"
#include "qgscomposerlabel.h"
#include "qgscomposerlabelwidget.h"
#include "qgscomposerlegend.h"
#include "qgscomposerlegendwidget.h"
#include "qgscomposermap.h"
#include "qgscomposermapwidget.h"
#include "qgscomposerpicture.h"
#include "qgscomposerpicturewidget.h"
#include "qgscomposerscalebar.h"
#include "qgscomposerscalebarwidget.h"
#include "qgscomposershape.h"
#include "qgscomposershapewidget.h"
#include "qgscomposerattributetable.h"
#include "qgscomposertablewidget.h"
#include "qgsexception.h"
#include "qgslogger.h"
#include "qgsproject.h"
#include "qgsmapcanvas.h"
#include "qgsmaprenderer.h"
#include "qgsmessageviewer.h"
#include "qgscontexthelp.h"
#include "qgscursors.h"
#include "qgspaintenginehack.h"
#include <QCloseEvent>
#include <QCheckBox>
#include <QDesktopWidget>
#include <QFileDialog>
#include <QFileInfo>
#include <QIcon>
#include <QImageWriter>
#include <QMatrix>
#include <QMenuBar>
#include <QMessageBox>
#include <QPageSetupDialog>
#include <QPainter>
#include <QPixmap>
#include <QPrintDialog>
#include <QSettings>
#include <QSizeGrip>
#include <QSvgGenerator>
#include <QToolBar>
#include <QToolButton>
#include <QUndoView>
#include <QPaintEngine>
QgsComposer::QgsComposer( QgisApp *qgis, const QString& title )
: QMainWindow()
, mTitle( title )
, mUndoView( 0 )
{
setupUi( this );
setWindowTitle( mTitle );
setupTheme();
connect( mButtonBox, SIGNAL( rejected() ), this, SLOT( close() ) );
QSettings settings;
int size = settings.value( "/IconSize", QGIS_ICON_SIZE ).toInt();
setIconSize( QSize( size, size ) );
#ifndef Q_WS_MAC
setFontSize( settings.value( "/fontPointSize", QGIS_DEFAULT_FONTSIZE ).toInt() );
#endif
QToolButton* orderingToolButton = new QToolButton( this );
orderingToolButton->setPopupMode( QToolButton::InstantPopup );
orderingToolButton->setAutoRaise( true );
orderingToolButton->setToolButtonStyle( Qt::ToolButtonIconOnly );
orderingToolButton->addAction( mActionRaiseItems );
orderingToolButton->addAction( mActionLowerItems );
orderingToolButton->addAction( mActionMoveItemsToTop );
orderingToolButton->addAction( mActionMoveItemsToBottom );
orderingToolButton->setDefaultAction( mActionRaiseItems );
toolBar->addWidget( orderingToolButton );
QToolButton* alignToolButton = new QToolButton( this );
alignToolButton->setPopupMode( QToolButton::InstantPopup );
alignToolButton->setAutoRaise( true );
alignToolButton->setToolButtonStyle( Qt::ToolButtonIconOnly );
alignToolButton->addAction( mActionAlignLeft );
alignToolButton->addAction( mActionAlignHCenter );
alignToolButton->addAction( mActionAlignRight );
alignToolButton->addAction( mActionAlignTop );
alignToolButton->addAction( mActionAlignVCenter );
alignToolButton->addAction( mActionAlignBottom );
alignToolButton->setDefaultAction( mActionAlignLeft );
toolBar->addWidget( alignToolButton );
QToolButton* shapeToolButton = new QToolButton( toolBar );
shapeToolButton->setCheckable( true );
shapeToolButton->setPopupMode( QToolButton::InstantPopup );
shapeToolButton->setAutoRaise( true );
shapeToolButton->setToolButtonStyle( Qt::ToolButtonIconOnly );
shapeToolButton->addAction( mActionAddRectangle );
shapeToolButton->addAction( mActionAddTriangle );
shapeToolButton->addAction( mActionAddEllipse );
shapeToolButton->setDefaultAction( mActionAddEllipse );
toolBar->insertWidget( mActionAddArrow, shapeToolButton );
QActionGroup* toggleActionGroup = new QActionGroup( this );
toggleActionGroup->addAction( mActionMoveItemContent );
toggleActionGroup->addAction( mActionAddNewMap );
toggleActionGroup->addAction( mActionAddNewLabel );
toggleActionGroup->addAction( mActionAddNewLegend );
toggleActionGroup->addAction( mActionAddNewScalebar );
toggleActionGroup->addAction( mActionAddImage );
toggleActionGroup->addAction( mActionSelectMoveItem );
toggleActionGroup->addAction( mActionAddRectangle );
toggleActionGroup->addAction( mActionAddTriangle );
toggleActionGroup->addAction( mActionAddEllipse );
toggleActionGroup->addAction( mActionAddArrow );
toggleActionGroup->addAction( mActionAddTable );
toggleActionGroup->setExclusive( true );
mActionAddNewMap->setCheckable( true );
mActionAddNewLabel->setCheckable( true );
mActionAddNewLegend->setCheckable( true );
mActionSelectMoveItem->setCheckable( true );
mActionAddNewScalebar->setCheckable( true );
mActionAddImage->setCheckable( true );
mActionMoveItemContent->setCheckable( true );
mActionAddArrow->setCheckable( true );
#ifdef Q_WS_MAC
QMenu *appMenu = menuBar()->addMenu( tr( "QGIS" ) );
appMenu->addAction( QgisApp::instance()->actionAbout() );
appMenu->addAction( QgisApp::instance()->actionOptions() );
#endif
QMenu *fileMenu = menuBar()->addMenu( tr( "File" ) );
fileMenu->addAction( mActionLoadFromTemplate );
fileMenu->addAction( mActionSaveAsTemplate );
fileMenu->addSeparator();
fileMenu->addAction( mActionExportAsImage );
fileMenu->addAction( mActionExportAsPDF );
fileMenu->addAction( mActionExportAsSVG );
fileMenu->addSeparator();
fileMenu->addAction( mActionPageSetup );
fileMenu->addAction( mActionPrint );
fileMenu->addSeparator();
fileMenu->addAction( mActionQuit );
QObject::connect( mActionQuit, SIGNAL( triggered() ), this, SLOT( close() ) );
QMenu *viewMenu = menuBar()->addMenu( tr( "View" ) );
viewMenu->addAction( mActionZoomIn );
viewMenu->addAction( mActionZoomOut );
viewMenu->addAction( mActionZoomAll );
viewMenu->addSeparator();
viewMenu->addAction( mActionRefreshView );
QMenu *layoutMenu = menuBar()->addMenu( tr( "Layout" ) );
layoutMenu->addAction( mActionUndo );
layoutMenu->addAction( mActionRedo );
layoutMenu->addSeparator();
layoutMenu->addAction( mActionAddNewMap );
layoutMenu->addAction( mActionAddNewLabel );
layoutMenu->addAction( mActionAddNewScalebar );
layoutMenu->addAction( mActionAddNewLegend );
layoutMenu->addAction( mActionAddImage );
layoutMenu->addAction( mActionSelectMoveItem );
layoutMenu->addAction( mActionMoveItemContent );
layoutMenu->addAction( mActionAddArrow );
layoutMenu->addAction( mActionAddTable );
layoutMenu->addSeparator();
layoutMenu->addAction( mActionGroupItems );
layoutMenu->addAction( mActionUngroupItems );
layoutMenu->addAction( mActionRaiseItems );
layoutMenu->addAction( mActionLowerItems );
layoutMenu->addAction( mActionMoveItemsToTop );
layoutMenu->addAction( mActionMoveItemsToBottom );
#ifdef Q_WS_MAC
#ifndef Q_WS_MAC64 /* assertion failure in NSMenuItem setSubmenu (Qt 4.5.0-snapshot-20080830) */
menuBar()->addMenu( QgisApp::instance()->windowMenu() );
menuBar()->addMenu( QgisApp::instance()->helpMenu() );
#endif
#endif
mQgis = qgis;
mFirstTime = true;
// Create action to select this window
mWindowAction = new QAction( windowTitle(), this );
connect( mWindowAction, SIGNAL( triggered() ), this, SLOT( activate() ) );
QgsDebugMsg( "entered." );
setMouseTracking( true );
mViewFrame->setMouseTracking( true );
//create composer view
mView = new QgsComposerView( mViewFrame );
//init undo/redo buttons
mComposition = new QgsComposition( mQgis->mapCanvas()->mapRenderer() );
mActionUndo->setEnabled( false );
mActionRedo->setEnabled( false );
if ( mComposition->undoStack() )
{
connect( mComposition->undoStack(), SIGNAL( canUndoChanged( bool ) ), mActionUndo, SLOT( setEnabled( bool ) ) );
connect( mComposition->undoStack(), SIGNAL( canRedoChanged( bool ) ), mActionRedo, SLOT( setEnabled( bool ) ) );
}
connectSlots();
mComposition->setParent( mView );
mView->setComposition( mComposition );
setTabPosition( Qt::AllDockWidgetAreas, QTabWidget::North );
mGeneralDock = new QDockWidget( tr( "Composition" ), this );
mGeneralDock->setObjectName( "CompositionDock" );
mItemDock = new QDockWidget( tr( "Item Properties" ), this );
mItemDock->setObjectName( "ItemDock" );
mUndoDock = new QDockWidget( tr( "Command history" ), this );
mUndoDock->setObjectName( "CommandDock" );
mGeneralDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
mItemDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
mUndoDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
QgsCompositionWidget* compositionWidget = new QgsCompositionWidget( mGeneralDock, mComposition );
connect( mComposition, SIGNAL( paperSizeChanged() ), compositionWidget, SLOT( displayCompositionWidthHeight() ) );
mGeneralDock->setWidget( compositionWidget );
//undo widget
mUndoView = new QUndoView( mComposition->undoStack(), this );
mUndoDock->setWidget( mUndoView );
addDockWidget( Qt::RightDockWidgetArea, mItemDock );
addDockWidget( Qt::RightDockWidgetArea, mGeneralDock );
addDockWidget( Qt::RightDockWidgetArea, mUndoDock );
mItemDock->show();
mGeneralDock->show();
mUndoDock->show();
tabifyDockWidget( mGeneralDock, mUndoDock );
tabifyDockWidget( mItemDock, mUndoDock );
tabifyDockWidget( mGeneralDock, mItemDock );
mGeneralDock->raise();
QGridLayout *l = new QGridLayout( mViewFrame );
l->setMargin( 0 );
l->addWidget( mView, 0, 0 );
// Create size grip (needed by Mac OS X for QMainWindow if QStatusBar is not visible)
mSizeGrip = new QSizeGrip( this );
mSizeGrip->resize( mSizeGrip->sizeHint() );
mSizeGrip->move( rect().bottomRight() - mSizeGrip->rect().bottomRight() );
restoreWindowState();
setSelectionTool();
mView->setFocus();
//connect with signals from QgsProject to write project files
if ( QgsProject::instance() )
{
connect( QgsProject::instance(), SIGNAL( writeProject( QDomDocument& ) ), this, SLOT( writeXML( QDomDocument& ) ) );
}
}
QgsComposer::~QgsComposer()
{
deleteItems();
}
void QgsComposer::setupTheme()
{
//now set all the icons - getThemeIcon will fall back to default theme if its
//missing from active theme
mActionQuit->setIcon( QgisApp::getThemeIcon( "/mActionFileExit.png" ) );
mActionLoadFromTemplate->setIcon( QgisApp::getThemeIcon( "/mActionFileOpen.png" ) );
mActionSaveAsTemplate->setIcon( QgisApp::getThemeIcon( "/mActionFileSaveAs.png" ) );
mActionExportAsImage->setIcon( QgisApp::getThemeIcon( "/mActionSaveMapAsImage.png" ) );
mActionExportAsSVG->setIcon( QgisApp::getThemeIcon( "/mActionSaveAsSVG.png" ) );
mActionExportAsPDF->setIcon( QgisApp::getThemeIcon( "/mActionSaveAsPDF.png" ) );
mActionPrint->setIcon( QgisApp::getThemeIcon( "/mActionFilePrint.png" ) );
mActionZoomAll->setIcon( QgisApp::getThemeIcon( "/mActionZoomFullExtent.png" ) );
mActionZoomIn->setIcon( QgisApp::getThemeIcon( "/mActionZoomIn.png" ) );
mActionZoomOut->setIcon( QgisApp::getThemeIcon( "/mActionZoomOut.png" ) );
mActionRefreshView->setIcon( QgisApp::getThemeIcon( "/mActionDraw.png" ) );
mActionUndo->setIcon( QgisApp::getThemeIcon( "/mActionUndo.png" ) );
mActionRedo->setIcon( QgisApp::getThemeIcon( "/mActionRedo.png" ) );
mActionAddImage->setIcon( QgisApp::getThemeIcon( "/mActionAddImage.png" ) );
mActionAddNewMap->setIcon( QgisApp::getThemeIcon( "/mActionAddMap.png" ) );
mActionAddNewLabel->setIcon( QgisApp::getThemeIcon( "/mActionLabel.png" ) );
mActionAddNewLegend->setIcon( QgisApp::getThemeIcon( "/mActionAddLegend.png" ) );
mActionAddNewScalebar->setIcon( QgisApp::getThemeIcon( "/mActionScaleBar.png" ) );
mActionAddRectangle->setIcon( QgisApp::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddTriangle->setIcon( QgisApp::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddEllipse->setIcon( QgisApp::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddArrow->setIcon( QgisApp::getThemeIcon( "/mActionAddArrow.png" ) );
mActionAddTable->setIcon( QgisApp::getThemeIcon( "/mActionOpenTable.png" ) );
mActionSelectMoveItem->setIcon( QgisApp::getThemeIcon( "/mActionSelectPan.png" ) );
mActionMoveItemContent->setIcon( QgisApp::getThemeIcon( "/mActionMoveItemContent.png" ) );
mActionGroupItems->setIcon( QgisApp::getThemeIcon( "/mActionGroupItems.png" ) );
mActionUngroupItems->setIcon( QgisApp::getThemeIcon( "/mActionUngroupItems.png" ) );
mActionRaiseItems->setIcon( QgisApp::getThemeIcon( "/mActionRaiseItems.png" ) );
mActionLowerItems->setIcon( QgisApp::getThemeIcon( "/mActionLowerItems.png" ) );
mActionMoveItemsToTop->setIcon( QgisApp::getThemeIcon( "/mActionMoveItemsToTop.png" ) );
mActionMoveItemsToBottom->setIcon( QgisApp::getThemeIcon( "/mActionMoveItemsToBottom.png" ) );
mActionAlignLeft->setIcon( QgisApp::getThemeIcon( "/mActionAlignLeft.png" ) );
mActionAlignHCenter->setIcon( QgisApp::getThemeIcon( "/mActionAlignHCenter.png" ) );
mActionAlignRight->setIcon( QgisApp::getThemeIcon( "/mActionAlignRight.png" ) );
mActionAlignTop->setIcon( QgisApp::getThemeIcon( "/mActionAlignTop.png" ) );
mActionAlignVCenter->setIcon( QgisApp::getThemeIcon( "/mActionAlignVCenter.png" ) );
mActionAlignBottom->setIcon( QgisApp::getThemeIcon( "/mActionAlignBottom.png" ) );
}
void QgsComposer::setIconSizes( int size )
{
//Set the icon size of for all the toolbars created in the future.
setIconSize( QSize( size, size ) );
//Change all current icon sizes.
QList<QToolBar *> toolbars = findChildren<QToolBar *>();
foreach( QToolBar * toolbar, toolbars )
{
toolbar->setIconSize( QSize( size, size ) );
}
}
void QgsComposer::setFontSize( int fontSize )
{
setStyleSheet( QString( "font-size: %1pt; " ).arg( fontSize ) );
}
void QgsComposer::connectSlots()
{
connect( mView, SIGNAL( selectedItemChanged( QgsComposerItem* ) ), this, SLOT( showItemOptions( QgsComposerItem* ) ) );
connect( mView, SIGNAL( itemRemoved( QgsComposerItem* ) ), this, SLOT( deleteItem( QgsComposerItem* ) ) );
connect( mView, SIGNAL( actionFinished() ), this, SLOT( setSelectionTool() ) );
connect( mComposition, SIGNAL( selectedItemChanged( QgsComposerItem* ) ), this, SLOT( showItemOptions( QgsComposerItem* ) ) );
connect( mComposition, SIGNAL( composerArrowAdded( QgsComposerArrow* ) ), this, SLOT( addComposerArrow( QgsComposerArrow* ) ) );
connect( mComposition, SIGNAL( composerLabelAdded( QgsComposerLabel* ) ), this, SLOT( addComposerLabel( QgsComposerLabel* ) ) );
connect( mComposition, SIGNAL( composerMapAdded( QgsComposerMap* ) ), this, SLOT( addComposerMap( QgsComposerMap* ) ) );
connect( mComposition, SIGNAL( composerScaleBarAdded( QgsComposerScaleBar* ) ), this, SLOT( addComposerScaleBar( QgsComposerScaleBar* ) ) );
connect( mComposition, SIGNAL( composerLegendAdded( QgsComposerLegend* ) ), this, SLOT( addComposerLegend( QgsComposerLegend* ) ) );
connect( mComposition, SIGNAL( composerPictureAdded( QgsComposerPicture* ) ), this, SLOT( addComposerPicture( QgsComposerPicture* ) ) );
connect( mComposition, SIGNAL( composerShapeAdded( QgsComposerShape* ) ), this, SLOT( addComposerShape( QgsComposerShape* ) ) );
connect( mComposition, SIGNAL( composerTableAdded( QgsComposerAttributeTable* ) ), this, SLOT( addComposerTable( QgsComposerAttributeTable* ) ) );
connect( mComposition, SIGNAL( itemRemoved( QgsComposerItem* ) ), this, SLOT( deleteItem( QgsComposerItem* ) ) );
}
void QgsComposer::open( void )
{
if ( mFirstTime )
{
//mComposition->createDefault();
mFirstTime = false;
show();
zoomFull(); // zoomFull() does not work properly until we have called show()
}
else
{
show(); //make sure the window is displayed - with a saved project, it's possible to not have already called show()
//is that a bug?
activate(); //bring the composer window to the front
}
}
void QgsComposer::activate()
{
show();
raise();
setWindowState( windowState() & ~Qt::WindowMinimized );
activateWindow();
}
#ifdef Q_WS_MAC
void QgsComposer::changeEvent( QEvent* event )
{
QMainWindow::changeEvent( event );
switch ( event->type() )
{
case QEvent::ActivationChange:
if ( QApplication::activeWindow() == this )
{
mWindowAction->setChecked( true );
}
break;
default:
break;
}
}
#endif
void QgsComposer::setTitle( const QString& title )
{
mTitle = title;
setWindowTitle( mTitle );
if ( mWindowAction )
{
mWindowAction->setText( title );
}
}
void QgsComposer::showItemOptions( QgsComposerItem* item )
{
QWidget* currentWidget = mItemDock->widget();
if ( !item )
{
mItemDock->setWidget( 0 );
return;
}
QMap<QgsComposerItem*, QWidget*>::iterator it = mItemWidgetMap.find( item );
if ( it == mItemWidgetMap.constEnd() )
{
return;
}
QWidget* newWidget = it.value();
if ( !newWidget || newWidget == currentWidget ) //bail out if new widget does not exist or is already there
{
return;
}
mItemDock->setWidget( newWidget );
}
QgsMapCanvas *QgsComposer::mapCanvas( void )
{
return mQgis->mapCanvas();
}
QgsComposerView *QgsComposer::view( void )
{
return mView;
}
/*QgsComposition *QgsComposer::composition(void)
{
return mComposition;
}*/
void QgsComposer::zoomFull( void )
{
if ( mView )
{
int nPages = mComposition->numPages();
if ( nPages < 1 )
{
return;
}
double height = mComposition->paperHeight() * nPages + mComposition->spaceBetweenPages() * ( nPages - 1 );
mView->fitInView( 0, 0, mComposition->paperWidth() + 1, height + 1, Qt::KeepAspectRatio );
}
}
void QgsComposer::on_mActionZoomAll_triggered()
{
zoomFull();
mView->update();
emit zoomLevelChanged();
}
void QgsComposer::on_mActionZoomIn_triggered()
{
mView->scale( 2, 2 );
mView->update();
emit zoomLevelChanged();
}
void QgsComposer::on_mActionZoomOut_triggered()
{
mView->scale( .5, .5 );
mView->update();
emit zoomLevelChanged();
}
void QgsComposer::on_mActionRefreshView_triggered()
{
if ( !mComposition )
{
return;
}
//refresh preview of all composer maps
QMap<QgsComposerItem*, QWidget*>::iterator it = mItemWidgetMap.begin();
for ( ; it != mItemWidgetMap.end(); ++it )
{
QgsComposerMap* map = dynamic_cast<QgsComposerMap*>( it.key() );
if ( map && !map->isDrawing() )
{
map->cache();
map->update();
}
}
mComposition->update();
}
void QgsComposer::on_mActionExportAsPDF_triggered()
{
QSettings myQSettings; // where we keep last used filter in persistent state
QString lastUsedFile = myQSettings.value( "/UI/lastSaveAsPdfFile", "qgis.pdf" ).toString();
QFileInfo file( lastUsedFile );
QString outputFileName = QFileDialog::getSaveFileName(
this,
tr( "Choose a file name to save the map as" ),
file.path(),
tr( "PDF Format" ) + " (*.pdf *.PDF)" );
if ( outputFileName.isEmpty() )
return;
if ( !outputFileName.endsWith( ".pdf", Qt::CaseInsensitive ) )
{
outputFileName += ".pdf";
}
myQSettings.setValue( "/UI/lastSaveAsPdfFile", outputFileName );
QPrinter printer;
printer.setOutputFormat( QPrinter::PdfFormat );
printer.setOutputFileName( outputFileName );
printer.setPaperSize( QSizeF( mComposition->paperWidth(), mComposition->paperHeight() ), QPrinter::Millimeter );
QgsPaintEngineHack::fixEngineFlags( printer.paintEngine() );
print( printer );
}
void QgsComposer::on_mActionPrint_triggered()
{
//orientation and page size are already set to QPrinter in the page setup dialog
QPrintDialog printDialog( &mPrinter, 0 );
if ( printDialog.exec() != QDialog::Accepted )
{
return;
}
print( mPrinter );
}
void QgsComposer::print( QPrinter &printer )
{
if ( !mComposition || !mView )
return;
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
//set resolution based on composer setting
printer.setFullPage( true );
printer.setColorMode( QPrinter::Color );
//set user-defined resolution
printer.setResolution( mComposition->printResolution() );
QPainter p( &printer );
QgsComposition::PlotStyle savedPlotStyle = mComposition->plotStyle();
mComposition->setPlotStyle( QgsComposition::Print );
QApplication::setOverrideCursor( Qt::BusyCursor );
bool printAsRaster = mComposition->printAsRaster();
if ( printAsRaster )
{
for ( int i = 0; i < mComposition->numPages(); ++i )
{
if ( i > 0 )
{
printer.newPage();
}
QImage image = printPageAsRaster( i );
if ( image.isNull() )
{
QApplication::restoreOverrideCursor();
int answer = QMessageBox::warning( 0,
tr( "Image too large" ),
tr( "Creation of image failed. Retry without 'Print As Raster'?" ),
QMessageBox::Ok | QMessageBox::Cancel,
QMessageBox::Ok );
if ( answer == QMessageBox::Cancel )
{
mComposition->setPlotStyle( savedPlotStyle );
return;
}
QApplication::setOverrideCursor( Qt::BusyCursor );
printAsRaster = false;
}
else
{
QRectF targetArea( 0, 0, image.width(), image.height() );
p.drawImage( targetArea, image, targetArea );
}
}
}
if ( !printAsRaster )
{
mView->setPaintingEnabled( false );
for ( int i = 0; i < mComposition->numPages(); ++i )
{
if ( i > 0 )
{
printer.newPage();
}
mComposition->renderPage( &p, i );
}
mView->setPaintingEnabled( true );
}
mComposition->setPlotStyle( savedPlotStyle );
QApplication::restoreOverrideCursor();
}
QImage QgsComposer::printPageAsRaster( int page )
{
//print out via QImage, code copied from on_mActionExportAsImage_activated
int width = ( int )( mComposition->printResolution() * mComposition->paperWidth() / 25.4 );
int height = ( int )( mComposition-> printResolution() * mComposition->paperHeight() / 25.4 );
QImage image( QSize( width, height ), QImage::Format_ARGB32 );
if ( !image.isNull() )
{
image.setDotsPerMeterX( mComposition->printResolution() / 25.4 * 1000 );
image.setDotsPerMeterY( mComposition->printResolution() / 25.4 * 1000 );
image.fill( 0 );
QPainter imagePainter( &image );
mView->setPaintingEnabled( false );
mComposition->renderPage( &imagePainter, page );
mView->setPaintingEnabled( true );
}
return image;
}
void QgsComposer::on_mActionExportAsImage_triggered()
{
if ( !mComposition )
{
return;
}
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
// Image size
int width = ( int )( mComposition->printResolution() * mComposition->paperWidth() / 25.4 );
int height = ( int )( mComposition-> printResolution() * mComposition->paperHeight() / 25.4 );
int memuse = width * height * 3 / 1000000; // pixmap + image
QgsDebugMsg( QString( "Image %1x%2" ).arg( width ).arg( height ) );
QgsDebugMsg( QString( "memuse = %1" ).arg( memuse ) );
if ( memuse > 200 ) // about 4500x4500
{
int answer = QMessageBox::warning( 0, tr( "Big image" ),
tr( "To create image %1x%2 requires about %3 MB of memory. Proceed?" )
.arg( width ).arg( height ).arg( memuse ),
QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok );
raise();
if ( answer == QMessageBox::Cancel )
return;
}
QPair<QString, QString> fileNExt = QgisGui::getSaveAsImageName( this, tr( "Choose a file name to save the map image as" ) );
if ( fileNExt.first.isEmpty() )
{
return;
}
QgsComposition::PlotStyle savedPlotStyle = mComposition->plotStyle();
mComposition->setPlotStyle( QgsComposition::Print );
for ( int i = 0; i < mComposition->numPages(); ++i )
{
QImage image = printPageAsRaster( i );
if ( i == 0 )
{
image.save( fileNExt.first, fileNExt.second.toLocal8Bit().constData() );
}
else
{
QFileInfo fi( fileNExt.first );
QString outputFilePath = fi.absolutePath() + "/" + fi.baseName() + "_" + QString::number( i + 1 ) + "." + fi.suffix();
image.save( outputFilePath, fileNExt.second.toLocal8Bit().constData() );
}
}
mComposition->setPlotStyle( savedPlotStyle );
}
void QgsComposer::on_mActionExportAsSVG_triggered()
{
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
QString settingsLabel = "/UI/displaySVGWarning";
QSettings settings;
bool displaySVGWarning = settings.value( settingsLabel, true ).toBool();
if ( displaySVGWarning )
{
QgsMessageViewer* m = new QgsMessageViewer( this );
m->setWindowTitle( tr( "SVG warning" ) );
m->setCheckBoxText( tr( "Don't show this message again" ) );
m->setCheckBoxState( Qt::Unchecked );
m->setCheckBoxVisible( true );
m->setCheckBoxQSettingsLabel( settingsLabel );
m->setMessageAsHtml( tr( "<p>The SVG export function in QGIS has several "
"problems due to bugs and deficiencies in the " )
+ tr( "Qt4 svg code. In particular, there are problems "
"with layers not being clipped to the map "
"bounding box.</p>" )
+ tr( "If you require a vector-based output file from "
"Qgis it is suggested that you try printing "
"to PostScript if the SVG output is not "
"satisfactory."
"</p>" ) );
m->exec();
}
QString lastUsedFile = settings.value( "/UI/lastSaveAsSvgFile", "qgis.svg" ).toString();
QFileInfo file( lastUsedFile );
QString outputFileName = QFileDialog::getSaveFileName(
this,
tr( "Choose a file name to save the map as" ),
file.path(),
tr( "SVG Format" ) + " (*.svg *.SVG)" );
if ( outputFileName.isEmpty() )
return;
if ( !outputFileName.endsWith( ".svg", Qt::CaseInsensitive ) )
{
outputFileName += ".svg";
}
settings.setValue( "/UI/lastSaveAsSvgFile", outputFileName );
QgsComposition::PlotStyle savedPlotStyle = mComposition->plotStyle();
mComposition->setPlotStyle( QgsComposition::Print );
mView->setPaintingEnabled( false );
for ( int i = 0; i < mComposition->numPages(); ++i )
{
QSvgGenerator generator;
#if QT_VERSION >= 0x040500
generator.setTitle( QgsProject::instance()->title() );
#endif
if ( i == 0 )
{
generator.setFileName( outputFileName );
}
else
{
QFileInfo fi( outputFileName );
generator.setFileName( fi.absolutePath() + "/" + fi.baseName() + "_" + QString::number( i + 1 ) + "." + fi.suffix() );
}
//width in pixel
int width = ( int )( mComposition->paperWidth() * mComposition->printResolution() / 25.4 );
//height in pixel
int height = ( int )( mComposition->paperHeight() * mComposition->printResolution() / 25.4 );
generator.setSize( QSize( width, height ) );
#if QT_VERSION >= 0x040500
generator.setViewBox( QRect( 0, 0, width, height ) );
#endif
generator.setResolution( mComposition->printResolution() ); //because the rendering is done in mm, convert the dpi
QPainter p( &generator );
mComposition->renderPage( &p, i );
p.end();
}
mComposition->setPlotStyle( savedPlotStyle );
mView->setPaintingEnabled( true );
}
void QgsComposer::on_mActionSelectMoveItem_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::Select );
}
}
void QgsComposer::on_mActionAddNewMap_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddMap );
}
}
void QgsComposer::on_mActionAddNewLegend_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddLegend );
}
}
void QgsComposer::on_mActionAddNewLabel_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddLabel );
}
}
void QgsComposer::on_mActionAddNewScalebar_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddScalebar );
}
}
void QgsComposer::on_mActionAddImage_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddPicture );
}
}
void QgsComposer::on_mActionAddRectangle_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddRectangle );
}
}
void QgsComposer::on_mActionAddTriangle_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddTriangle );
}
}
void QgsComposer::on_mActionAddEllipse_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddEllipse );
}
}
void QgsComposer::on_mActionAddTable_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddTable );
}
}
void QgsComposer::on_mActionAddArrow_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::AddArrow );
}
}
void QgsComposer::on_mActionSaveAsTemplate_triggered()
{
//show file dialog
QSettings settings;
QString lastSaveDir = settings.value( "UI/lastComposerTemplateDir", "" ).toString();
QString saveFileName = QFileDialog::getSaveFileName(
this,
tr( "Save template" ),
lastSaveDir,
tr( "Composer templates" ) + " (*.qpt *.QPT)" );
if ( saveFileName.isEmpty() )
return;
QFileInfo saveFileInfo( saveFileName );
//check if suffix has been added
if ( saveFileInfo.suffix().isEmpty() )
{
QString saveFileNameWithSuffix = saveFileName.append( ".qpt" );
saveFileInfo = QFileInfo( saveFileNameWithSuffix );
}
settings.setValue( "UI/LastComposerTemplateDir", saveFileInfo.absolutePath() );
QFile templateFile( saveFileName );
if ( !templateFile.open( QIODevice::WriteOnly ) )
{
return;
}
QDomDocument saveDocument;
writeXML( saveDocument, saveDocument );
if ( templateFile.write( saveDocument.toByteArray() ) == -1 )
{
QMessageBox::warning( 0, tr( "Save error" ), tr( "Error, could not save file" ) );
}
}
void QgsComposer::on_mActionLoadFromTemplate_triggered()
{
QSettings settings;
QString openFileDir = settings.value( "UI/lastComposerTemplateDir", "" ).toString();
QString openFileString = QFileDialog::getOpenFileName( 0, tr( "Load template" ), openFileDir, "*.qpt" );
if ( openFileString.isEmpty() )
{
return; //canceled by the user
}
QFileInfo openFileInfo( openFileString );
settings.setValue( "UI/LastComposerTemplateDir", openFileInfo.absolutePath() );
QFile templateFile( openFileString );
if ( !templateFile.open( QIODevice::ReadOnly ) )
{
QMessageBox::warning( 0, tr( "Read error" ), tr( "Error, could not read file" ) );
return;
}
emit composerWillBeRemoved( mView );
QDomDocument templateDocument;
if ( !templateDocument.setContent( &templateFile, false ) )
{
QMessageBox::warning( 0, tr( "Read error" ), tr( "Content of template file is not valid" ) );
return;
}
deleteItems();
readXML( templateDocument );
emit composerAdded( mView );
}
void QgsComposer::on_mActionMoveItemContent_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::MoveItemContent );
}
}
void QgsComposer::on_mActionGroupItems_triggered()
{
if ( mView )
{
mView->groupItems();
}