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qgscomposer.cpp
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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 "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 "qgsexception.h"
#include "qgsproject.h"
#include "qgsmapcanvas.h"
#include "qgsmaprenderer.h"
#include "qgsmessageviewer.h"
#include "qgscontexthelp.h"
#include "qgscursors.h"
#include <QCloseEvent>
#include <QDesktopWidget>
#include <QFileDialog>
#include <QFileInfo>
#include <QMatrix>
#include <QMenuBar>
#include <QMessageBox>
#include <QPainter>
#include <QPrinter>
#include <QPrintDialog>
#include <QSettings>
#include <QIcon>
#include <QPixmap>
#if QT_VERSION < 0x040300
#include <Q3Picture>
#else
#include <QSvgGenerator>
#endif
#include <QToolBar>
#include <QToolButton>
#include <QImageWriter>
#include <QCheckBox>
#include <QSizeGrip>
#include "qgslogger.h"
QgsComposer::QgsComposer( QgisApp *qgis ): QMainWindow(), mFirstPaint( true )
{
setupUi( this );
setupTheme();
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 );
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->setExclusive( true );
setWindowTitle( tr( "QGIS - print composer" ) );
mActionAddNewMap->setCheckable( true );
mActionAddNewLabel->setCheckable( true );
mActionAddNewLegend->setCheckable( true );
mActionSelectMoveItem->setCheckable( true );
mActionAddNewScalebar->setCheckable( true );
mActionAddImage->setCheckable( true );
mActionMoveItemContent->setCheckable( true );
#ifdef Q_WS_MAC
QMenu *appMenu = menuBar()->addMenu( tr( "QGIS" ) );
appMenu->addAction( QgisApp::instance()->actionAbout() );
appMenu->addAction( QgisApp::instance()->actionOptions() );
QMenu *fileMenu = menuBar()->addMenu( tr( "File" ) );
QAction *closeAction = fileMenu->addAction( tr( "Close" ), this, SLOT( close() ), tr( "Ctrl+W" ) );
fileMenu->addAction( mActionExportAsImage );
fileMenu->addAction( mActionExportAsSVG );
fileMenu->addSeparator();
fileMenu->addAction( mActionPrint );
QMenu *editMenu = menuBar()->addMenu( tr( "Edit" ) );
QAction *undoAction = editMenu->addAction( tr( "&Undo" ), this, SLOT( undo() ), tr( "Ctrl+Z" ) );
undoAction->setEnabled( false );
editMenu->addSeparator();
QAction *cutAction = editMenu->addAction( tr( "Cu&t" ), this, SLOT( cut() ), tr( "Ctrl+X" ) );
cutAction->setEnabled( false );
QAction *copyAction = editMenu->addAction( tr( "&Copy" ), this, SLOT( copy() ), tr( "Ctrl+C" ) );
copyAction->setEnabled( false );
QAction *pasteAction = editMenu->addAction( tr( "&Paste" ), this, SLOT( paste() ), tr( "Ctrl+V" ) );
pasteAction->setEnabled( false );
QAction *deleteAction = editMenu->addAction( tr( "Delete" ) );
deleteAction->setEnabled( false );
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( mActionAddNewMap );
layoutMenu->addAction( mActionAddNewLabel );
layoutMenu->addAction( mActionAddNewScalebar );
layoutMenu->addAction( mActionAddNewLegend );
layoutMenu->addAction( mActionAddImage );
layoutMenu->addAction( mActionSelectMoveItem );
layoutMenu->addAction( mActionMoveItemContent );
layoutMenu->addSeparator();
layoutMenu->addAction( mActionGroupItems );
layoutMenu->addAction( mActionUngroupItems );
layoutMenu->addAction( mActionRaiseItems );
layoutMenu->addAction( mActionLowerItems );
layoutMenu->addAction( mActionMoveItemsToTop );
layoutMenu->addAction( mActionMoveItemsToBottom );
#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
// Create action to select this window and add it to Window menu
mWindowAction = new QAction( windowTitle(), this );
connect( mWindowAction, SIGNAL( triggered() ), this, SLOT( activate() ) );
#endif
mQgis = qgis;
mFirstTime = true;
QgsDebugMsg( "entered." );
setMouseTracking( true );
//mSplitter->setMouseTracking(true);
mViewFrame->setMouseTracking( true );
//create composer view
mView = new QgsComposerView( mViewFrame );
connectSlots();
mComposition = new QgsComposition( mQgis->mapCanvas()->mapRenderer() );
mView->setComposition( mComposition );
QgsCompositionWidget* compositionWidget = new QgsCompositionWidget( mCompositionOptionsFrame, mComposition );
compositionWidget->show();
mCompositionOptionsLayout = new QGridLayout( mCompositionOptionsFrame );
mCompositionOptionsLayout->setMargin( 0 );
mCompositionOptionsLayout->addWidget( compositionWidget );
mPrinter = 0;
QGridLayout *l = new QGridLayout( mViewFrame );
l->setMargin( 0 );
l->addWidget( mView, 0, 0 );
mCompositionNameComboBox->insertItem( 0, tr( "Map 1" ) );
// 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 read/write project files
if ( QgsProject::instance() )
{
connect( QgsProject::instance(), SIGNAL( readProject( const QDomDocument& ) ), this, SLOT( readXML( const QDomDocument& ) ) );
connect( QgsProject::instance(), SIGNAL( writeProject( QDomDocument& ) ), this, SLOT( writeXML( QDomDocument& ) ) );
}
}
QgsComposer::~QgsComposer()
{
//delete all the items
QMap<QgsComposerItem*, QWidget*>::iterator it = mItemWidgetMap.begin();
for ( ; it != mItemWidgetMap.end(); ++it )
{
delete it.key();
delete it.value();
}
}
void QgsComposer::setupTheme()
{
//now set all the icons - getThemeIcon will fall back to default theme if its
//missing from active theme
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" ) );
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" ) );
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::connectSlots()
{
connect( mView, SIGNAL( selectedItemChanged( const QgsComposerItem* ) ), this, SLOT( showItemOptions( const QgsComposerItem* ) ) );
connect( mView, SIGNAL( composerLabelAdded( QgsComposerLabel* ) ), this, SLOT( addComposerLabel( QgsComposerLabel* ) ) );
connect( mView, SIGNAL( composerMapAdded( QgsComposerMap* ) ), this, SLOT( addComposerMap( QgsComposerMap* ) ) );
connect( mView, SIGNAL( itemRemoved( QgsComposerItem* ) ), this, SLOT( deleteItem( QgsComposerItem* ) ) );
connect( mView, SIGNAL( composerScaleBarAdded( QgsComposerScaleBar* ) ), this, SLOT( addComposerScaleBar( QgsComposerScaleBar* ) ) );
connect( mView, SIGNAL( composerLegendAdded( QgsComposerLegend* ) ), this, SLOT( addComposerLegend( QgsComposerLegend* ) ) );
connect( mView, SIGNAL( composerPictureAdded( QgsComposerPicture* ) ), this, SLOT( addComposerPicture( QgsComposerPicture* ) ) );
connect( mView, SIGNAL( actionFinished() ), this, SLOT( setSelectionTool() ) );
}
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::paintEvent( QPaintEvent* event )
{
QMainWindow::paintEvent( event );
//The cached content of the composer maps need to be recreated it is the first paint event of the composer after reading from XML file.
//Otherwise the resolution of the composer map is not suitable for screen
if ( mFirstPaint )
{
QMap<QgsComposerItem*, QWidget*>::iterator it = mItemWidgetMap.begin();
for ( ; it != mItemWidgetMap.constEnd(); ++it )
{
QgsComposerMap* cm = dynamic_cast<QgsComposerMap*>( it.key() );
if ( cm )
{
cm->cache();
cm->update();
}
}
mFirstPaint = false;
}
}
void QgsComposer::activate()
{
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;
}
}
void QgsComposer::closeEvent( QCloseEvent *event )
{
QMainWindow::closeEvent( event );
if ( event->isAccepted() )
{
QgisApp::instance()->removeWindow( mWindowAction );
}
}
void QgsComposer::showEvent( QShowEvent *event )
{
QMainWindow::showEvent( event );
// add to menu if (re)opening window (event not due to unminimize)
if ( !event->spontaneous() )
{
QgisApp::instance()->addWindow( mWindowAction );
}
}
#endif
void QgsComposer::showCompositionOptions( QWidget *w )
{
QWidget* currentWidget = mItemStackedWidget->currentWidget();
mItemStackedWidget->removeWidget( currentWidget );
mItemStackedWidget->addWidget( w );
}
void QgsComposer::showItemOptions( const QgsComposerItem* item )
{
QWidget* currentWidget = mItemStackedWidget->currentWidget();
if ( !item )
{
mItemStackedWidget->removeWidget( currentWidget );
mItemStackedWidget->setCurrentWidget( 0 );
return;
}
QMap<QgsComposerItem*, QWidget*>::iterator it = mItemWidgetMap.find( const_cast<QgsComposerItem*>( 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;
}
mItemStackedWidget->removeWidget( currentWidget );
mItemStackedWidget->addWidget( newWidget );
mItemStackedWidget->setCurrentWidget( newWidget );
//newWidget->show();
}
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 )
{
mView->fitInView( 0, 0, mComposition->paperWidth() + 1, mComposition->paperHeight() + 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 )
{
mComposition->update();
}
}
void QgsComposer::on_mActionExportAsPDF_triggered()
{
QSettings myQSettings; // where we keep last used filter in persistant state
QString myLastUsedFile = myQSettings.value( "/UI/lastSaveAsPdfFile", "qgis.pdf" ).toString();
QFileInfo file( myLastUsedFile );
QFileDialog *myQFileDialog = new QFileDialog( this, tr( "Choose a file name to save the map as" ),
file.path(), tr( "PDF Format" ) + " (*.pdf *PDF)" );
myQFileDialog->selectFile( file.fileName() );
myQFileDialog->setFileMode( QFileDialog::AnyFile );
myQFileDialog->setAcceptMode( QFileDialog::AcceptSave );
int result = myQFileDialog->exec();
raise();
if ( result != QDialog::Accepted ) return;
QString myOutputFileNameQString = myQFileDialog->selectedFiles().first();
if ( myOutputFileNameQString == "" ) return;
myQSettings.setValue( "/UI/lastSaveAsPdfFile", myOutputFileNameQString );
QPrinter printer;
printer.setOutputFormat( QPrinter::PdfFormat );
printer.setOutputFileName( myOutputFileNameQString );
print( printer );
}
void QgsComposer::on_mActionPrint_triggered()
{
QPrinter printer;
QPrintDialog printDialog( &printer );
if ( printDialog.exec() != QDialog::Accepted )
return;
print( printer );
}
void QgsComposer::print( QPrinter &printer )
{
if ( !mComposition )
return;
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
//try to set most of the print dialog settings based on composer properties
if ( mComposition->paperHeight() > mComposition->paperWidth() )
{
printer.setOrientation( QPrinter::Portrait );
}
else
{
printer.setOrientation( QPrinter::Landscape );
}
//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 );
if ( mComposition->printAsRaster() )
{
//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 );
image.setDotsPerMeterX( mComposition->printResolution() / 25.4 * 1000 );
image.setDotsPerMeterY( mComposition->printResolution() / 25.4 * 1000 );
image.fill( 0 );
QPainter imagePainter( &image );
QRectF sourceArea( 0, 0, mComposition->paperWidth(), mComposition->paperHeight() );
QRectF targetArea( 0, 0, width, height );
mComposition->render( &imagePainter, targetArea, sourceArea );
imagePainter.end();
p.drawImage( targetArea, image, targetArea );
}
else
{
#if QT_VERSION < 0x040400
QRectF paperRect( 0, 0, mComposition->paperWidth(), mComposition->paperHeight() );
QRect pageRect = printer.pageRect();
mComposition->render( &p, pageRect, paperRect );
#else
//better in case of custom page size, but only possible with Qt>=4.4.0
QRectF paperRectMM = printer.pageRect( QPrinter::Millimeter );
QRectF paperRectPixel = printer.pageRect( QPrinter::DevicePixel );
mComposition->render( &p, paperRectPixel, paperRectMM );
#endif
}
mComposition->setPlotStyle( savedPlotStyle );
QApplication::restoreOverrideCursor();
}
void QgsComposer::on_mActionExportAsImage_triggered()
{
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 %1 x %2" ).arg( width ).arg( height ) );
QgsDebugMsg( QString( "memuse = %1" ).arg( memuse ) );
if ( memuse > 200 ) // cca 4500 x 4500
{
int answer = QMessageBox::warning( 0, tr( "Big image" ),
tr( "To create image %1 x %2 requires circa %3 MB of memory" )
.arg( width ).arg( height ).arg( memuse ),
QMessageBox::Ok, QMessageBox::Abort );
raise();
if ( answer == QMessageBox::Abort ) return;
}
// Get file and format (stolen from qgisapp.cpp but modified significantely)
//create a map to hold the QImageIO names and the filter names
//the QImageIO name must be passed to the mapcanvas saveas image function
typedef QMap<QString, QString> FilterMap;
FilterMap myFilterMap;
//find out the last used filter
QSettings myQSettings; // where we keep last used filter in persistant state
QString myLastUsedFormat = myQSettings.value( "/UI/lastSaveAsImageFormat", "png" ).toString();
QString myLastUsedFile = myQSettings.value( "/UI/lastSaveAsImageFile", "qgis.png" ).toString();
QFileInfo file( myLastUsedFile );
// get a list of supported output image types
int myCounterInt = 0;
QString myFilters;
QString myLastUsedFilter;
for ( ; myCounterInt < QImageWriter::supportedImageFormats().count(); myCounterInt++ )
{
QString myFormat = QString( QImageWriter::supportedImageFormats().at( myCounterInt ) );
QString myFilter = tr( "%1 format (*.%2 *.%3)" )
.arg( myFormat ).arg( myFormat.toLower() ).arg( myFormat.toUpper() );
if ( myCounterInt > 0 ) myFilters += ";;";
myFilters += myFilter;
myFilterMap[myFilter] = myFormat;
if ( myFormat == myLastUsedFormat )
{
myLastUsedFilter = myFilter;
}
}
#ifdef QGISDEBUG
QgsDebugMsg( "Available Filters Map: " );
FilterMap::Iterator myIterator;
for ( myIterator = myFilterMap.begin(); myIterator != myFilterMap.end(); ++myIterator )
{
QgsDebugMsg( QString( "%1 : %2" ).arg( myIterator.key() ).arg( myIterator.value() ) );
}
#endif
//create a file dialog using the the filter list generated above
std::auto_ptr < QFileDialog > myQFileDialog(
new QFileDialog(
this,
tr( "Choose a file name to save the map image as" ),
file.path(),
myFilters
)
);
myQFileDialog->setFileMode( QFileDialog::AnyFile );
// set the filter to the last one used
myQFileDialog->selectFilter( myLastUsedFilter );
// set the 'Open' button to something that makes more sense
myQFileDialog->setAcceptMode( QFileDialog::AcceptSave );
//prompt the user for a file name
QString myOutputFileNameQString;
int result = myQFileDialog->exec();
//raise();
if ( result != QDialog::Accepted )
{
return;
}
myOutputFileNameQString = myQFileDialog->selectedFiles().last();
QgsDebugMsg( myOutputFileNameQString );
QString myFilterString = myQFileDialog->selectedFilter();
QgsDebugMsg( QString( "Selected filter: %1" ).arg( myFilterString ) );
QgsDebugMsg( QString( "Image type: %1" ).arg( myFilterMap[myFilterString] ) );
// Add the file type suffix to the fileName if required
if ( !myOutputFileNameQString.endsWith( myFilterMap[myFilterString] ) )
{
myOutputFileNameQString += "." + myFilterMap[myFilterString];
}
myQSettings.setValue( "/UI/lastSaveAsImageFormat", myFilterMap[myFilterString] );
myQSettings.setValue( "/UI/lastSaveAsImageFile", myOutputFileNameQString );
if ( myOutputFileNameQString == "" ) return;
mComposition->setPlotStyle( QgsComposition::Print );
mView->setScene( 0 );
QImage image( QSize( width, height ), QImage::Format_ARGB32 );
image.setDotsPerMeterX( mComposition->printResolution() / 25.4 * 1000 );
image.setDotsPerMeterY( mComposition->printResolution() / 25.4 * 1000 );
image.fill( 0 );
QPainter p( &image );
QRectF sourceArea( 0, 0, mComposition->paperWidth(), mComposition->paperHeight() );
QRectF targetArea( 0, 0, width, height );
mComposition->render( &p, targetArea, sourceArea );
p.end();
mComposition->setPlotStyle( QgsComposition::Preview );
image.save( myOutputFileNameQString, myFilterMap[myFilterString].toLocal8Bit().data() );
mView->setScene( mComposition );
}
void QgsComposer::on_mActionExportAsSVG_triggered()
{
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
QString myQSettingsLabel = "/UI/displaySVGWarning";
QSettings myQSettings;
bool displaySVGWarning = myQSettings.value( myQSettingsLabel, 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( myQSettingsLabel );
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 myLastUsedFile = myQSettings.value( "/UI/lastSaveAsSvgFile", "qgis.svg" ).toString();
QFileInfo file( myLastUsedFile );
QFileDialog *myQFileDialog = new QFileDialog( this, tr( "Choose a file name to save the map as" ),
file.path(), tr( "SVG Format" ) + " (*.svg *SVG)" );
myQFileDialog->selectFile( file.fileName() );
myQFileDialog->setFileMode( QFileDialog::AnyFile );
myQFileDialog->setAcceptMode( QFileDialog::AcceptSave );
int result = myQFileDialog->exec();
raise();
if ( result != QDialog::Accepted ) return;
QString myOutputFileNameQString = myQFileDialog->selectedFiles().first();
if ( myOutputFileNameQString == "" ) return;
myQSettings.setValue( "/UI/lastSaveAsSvgFile", myOutputFileNameQString );
//mView->setScene(0);//don't redraw the scene on the display while we render
mComposition->setPlotStyle( QgsComposition::Print );
QSvgGenerator generator;
generator.setTitle( QgsProject::instance()->title() );
generator.setFileName( myOutputFileNameQString );
//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 ) );
generator.setResolution( mComposition->printResolution() ); //because the rendering is done in mm, convert the dpi
QPainter p( &generator );
QRectF sourceArea( 0, 0, mComposition->paperWidth(), mComposition->paperHeight() );
QRectF targetArea( 0, 0, width, height );
mComposition->render( &p, targetArea, sourceArea );
p.end();
mComposition->setPlotStyle( QgsComposition::Preview );
//mView->setScene(mComposition->canvas()); //now that we're done, set the view to show the scene again
}
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_mActionSaveAsTemplate_triggered()
{
//show file dialog
QSettings settings;
QString lastSaveDir = settings.value( "UI/lastComposerTemplateDir", "" ).toString();
QString saveFileName = QFileDialog::getSaveFileName( 0, tr( "save template" ), lastSaveDir, "*.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;
}
QDomDocument templateDocument;
if ( !templateDocument.setContent( &templateFile, false ) )
{
QMessageBox::warning( 0, tr( "Read error" ), tr( "Content of template file is not valid" ) );
return;
}
readXML( templateDocument );
//clean up after template read (e.g. legend and map extent)
cleanupAfterTemplateRead();
}
void QgsComposer::on_mActionMoveItemContent_triggered()
{
if ( mView )
{
mView->setCurrentTool( QgsComposerView::MoveItemContent );
}
}
void QgsComposer::on_mActionGroupItems_triggered()
{
if ( mView )
{
mView->groupItems();
}
}
void QgsComposer::on_mActionUngroupItems_triggered()
{
if ( mView )
{
mView->ungroupItems();
}
}
void QgsComposer::on_mActionRaiseItems_triggered()
{
if ( mComposition )
{
mComposition->raiseSelectedItems();
}
}
void QgsComposer::on_mActionLowerItems_triggered()
{
if ( mComposition )
{
mComposition->lowerSelectedItems();
}
}
void QgsComposer::on_mActionMoveItemsToTop_triggered()
{
if ( mComposition )
{
mComposition->moveSelectedItemsToTop();
}
}
void QgsComposer::on_mActionMoveItemsToBottom_triggered()
{
if ( mComposition )
{
mComposition->moveSelectedItemsToBottom();
}
}
void QgsComposer::on_mActionAlignLeft_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsLeft();
}
}
void QgsComposer::on_mActionAlignHCenter_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsHCenter();
}
}
void QgsComposer::on_mActionAlignRight_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsRight();
}
}
void QgsComposer::on_mActionAlignTop_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsTop();
}
}
void QgsComposer::on_mActionAlignVCenter_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsVCenter();
}
}
void QgsComposer::on_mActionAlignBottom_triggered()
{
if ( mComposition )
{
mComposition->alignSelectedItemsBottom();
}
}
void QgsComposer::moveEvent( QMoveEvent *e ) { saveWindowState(); }
void QgsComposer::resizeEvent( QResizeEvent *e )
{
// Move size grip when window is resized
mSizeGrip->move( rect().bottomRight() - mSizeGrip->rect().bottomRight() );
saveWindowState();
}
void QgsComposer::saveWindowState()