/
qgscomposer.cpp
2163 lines (1884 loc) · 63.7 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 <stdexcept>
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgscomposerview.h"
#include "qgscomposition.h"
#include "qgscompositionwidget.h"
#include "qgsatlascompositionwidget.h"
#include "qgscomposerarrow.h"
#include "qgscomposerarrowwidget.h"
#include "qgscomposerframe.h"
#include "qgscomposerhtml.h"
#include "qgscomposerhtmlwidget.h"
#include "qgscomposerlabel.h"
#include "qgscomposerlabelwidget.h"
#include "qgscomposerlegend.h"
#include "qgscomposerlegendwidget.h"
#include "qgscomposermap.h"
#include "qgsatlascomposition.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 <QCloseEvent>
#include <QCheckBox>
#include <QDesktopWidget>
#include <QDialog>
#include <QFileDialog>
#include <QFileInfo>
#include <QIcon>
#include <QImageWriter>
#include <QLabel>
#include <QMatrix>
#include <QMenuBar>
#include <QMessageBox>
#include <QPageSetupDialog>
#include <QPainter>
#include <QPixmap>
#include <QPrintDialog>
#include <QSettings>
#include <QSizeGrip>
#include <QSvgGenerator>
#include <QTimer>
#include <QToolBar>
#include <QToolButton>
#include <QUndoView>
#include <QPaintEngine>
#include <QProgressBar>
#include <QProgressDialog>
QgsComposer::QgsComposer( QgisApp *qgis, const QString& title )
: QMainWindow()
, mTitle( title )
, mQgis( qgis )
, mUndoView( 0 )
{
setupUi( this );
setWindowTitle( mTitle );
setupTheme();
connect( mButtonBox, SIGNAL( rejected() ), this, SLOT( close() ) );
QSettings settings;
setStyleSheet( mQgis->styleSheet() );
int size = settings.value( "/IconSize", QGIS_ICON_SIZE ).toInt();
setIconSize( QSize( size, size ) );
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 );
mItemActionToolbar->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 );
mItemActionToolbar->addWidget( alignToolButton );
QToolButton* shapeToolButton = new QToolButton( mItemToolbar );
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 );
mItemToolbar->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->addAction( mActionAddHtml );
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( mQgis->actionAbout() );
appMenu->addAction( mQgis->actionOptions() );
#endif
QMenu *composerMenu = menuBar()->addMenu( tr( "Composer" ) );
composerMenu->addAction( mActionSaveProject );
composerMenu->addSeparator();
composerMenu->addAction( mActionNewComposer );
composerMenu->addAction( mActionDuplicateComposer );
composerMenu->addAction( mActionComposerManager );
mPrintComposersMenu = new QMenu( tr( "Print Composers" ), this );
mPrintComposersMenu->setObjectName( "mPrintComposersMenu" );
connect( mPrintComposersMenu, SIGNAL( aboutToShow() ), this, SLOT( populatePrintComposersMenu() ) );
composerMenu->addMenu( mPrintComposersMenu );
composerMenu->addSeparator();
composerMenu->addAction( mActionNewFromTemplate );
composerMenu->addAction( mActionLoadFromTemplate );
composerMenu->addAction( mActionSaveAsTemplate );
composerMenu->addSeparator();
composerMenu->addAction( mActionExportAsImage );
composerMenu->addAction( mActionExportAsPDF );
composerMenu->addAction( mActionExportAsSVG );
composerMenu->addSeparator();
composerMenu->addAction( mActionPageSetup );
composerMenu->addAction( mActionPrint );
composerMenu->addSeparator();
composerMenu->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 );
// Panel and toolbar submenus
mPanelMenu = new QMenu( tr( "Panels" ), this );
mPanelMenu->setObjectName( "mPanelMenu" );
mToolbarMenu = new QMenu( tr( "Toolbars" ), this );
mToolbarMenu->setObjectName( "mToolbarMenu" );
viewMenu->addSeparator();
viewMenu->addMenu( mPanelMenu );
viewMenu->addMenu( mToolbarMenu );
// toolBar already exists, add other widgets as they are created
mToolbarMenu->addAction( mComposerToolbar->toggleViewAction() );
mToolbarMenu->addAction( mPaperNavToolbar->toggleViewAction() );
mToolbarMenu->addAction( mItemActionToolbar->toggleViewAction() );
mToolbarMenu->addAction( mItemToolbar->toggleViewAction() );
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
// this doesn't work on Mac anymore: menuBar()->addMenu( mQgis->windowMenu() );
// QgsComposer::populateWithOtherMenu should work recursively with submenus and regardless of Qt version
mWindowMenu = new QMenu( tr( "Window" ), this );
mWindowMenu->setObjectName( "mWindowMenu" );
connect( mWindowMenu, SIGNAL( aboutToShow() ), this, SLOT( populateWindowMenu() ) );
menuBar()->addMenu( mWindowMenu );
mHelpMenu = new QMenu( tr( "Help" ) );
mHelpMenu->setObjectName( "mHelpMenu" );
connect( mHelpMenu, SIGNAL( aboutToShow() ), this, SLOT( populateHelpMenu() ) );
menuBar()->addMenu( mHelpMenu );
#endif
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 );
int minDockWidth( 335 );
setTabPosition( Qt::AllDockWidgetAreas, QTabWidget::North );
mGeneralDock = new QDockWidget( tr( "Composition" ), this );
mGeneralDock->setObjectName( "CompositionDock" );
mGeneralDock->setMinimumWidth( minDockWidth );
mPanelMenu->addAction( mGeneralDock->toggleViewAction() );
mItemDock = new QDockWidget( tr( "Item Properties" ), this );
mItemDock->setObjectName( "ItemDock" );
mItemDock->setMinimumWidth( minDockWidth );
mPanelMenu->addAction( mItemDock->toggleViewAction() );
mUndoDock = new QDockWidget( tr( "Command history" ), this );
mUndoDock->setObjectName( "CommandDock" );
mPanelMenu->addAction( mUndoDock->toggleViewAction() );
mAtlasDock = new QDockWidget( tr( "Atlas generation" ), this );
mAtlasDock->setObjectName( "AtlasDock" );
mPanelMenu->addAction( mAtlasDock->toggleViewAction() );
mGeneralDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
mItemDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
mUndoDock->setFeatures( QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable );
mAtlasDock->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 );
addDockWidget( Qt::RightDockWidgetArea, mAtlasDock );
QgsAtlasCompositionWidget* atlasWidget = new QgsAtlasCompositionWidget( mGeneralDock, mComposition );
mAtlasDock->setWidget( atlasWidget );
mItemDock->show();
mGeneralDock->show();
mUndoDock->show();
mAtlasDock->show();
tabifyDockWidget( mGeneralDock, mUndoDock );
tabifyDockWidget( mItemDock, mUndoDock );
tabifyDockWidget( mGeneralDock, mItemDock );
tabifyDockWidget( mItemDock, mAtlasDock );
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()
{
deleteItemWidgets();
}
void QgsComposer::setupTheme()
{
//now set all the icons - getThemeIcon will fall back to default theme if its
//missing from active theme
mActionQuit->setIcon( QgsApplication::getThemeIcon( "/mActionFileExit.png" ) );
mActionSaveProject->setIcon( QgsApplication::getThemeIcon( "/mActionFileSave.png" ) );
mActionNewComposer->setIcon( QgsApplication::getThemeIcon( "/mActionNewComposer.png" ) );
mActionDuplicateComposer->setIcon( QgsApplication::getThemeIcon( "/mActionDuplicateComposer.png" ) );
mActionComposerManager->setIcon( QgsApplication::getThemeIcon( "/mActionComposerManager.png" ) );
mActionNewFromTemplate->setIcon( QgsApplication::getThemeIcon( "/mActionNewComposer.png" ) );
mActionLoadFromTemplate->setIcon( QgsApplication::getThemeIcon( "/mActionFileOpen.png" ) );
mActionSaveAsTemplate->setIcon( QgsApplication::getThemeIcon( "/mActionFileSaveAs.png" ) );
mActionExportAsImage->setIcon( QgsApplication::getThemeIcon( "/mActionSaveMapAsImage.png" ) );
mActionExportAsSVG->setIcon( QgsApplication::getThemeIcon( "/mActionSaveAsSVG.png" ) );
mActionExportAsPDF->setIcon( QgsApplication::getThemeIcon( "/mActionSaveAsPDF.png" ) );
mActionPrint->setIcon( QgsApplication::getThemeIcon( "/mActionFilePrint.png" ) );
mActionZoomAll->setIcon( QgsApplication::getThemeIcon( "/mActionZoomFullExtent.png" ) );
mActionZoomIn->setIcon( QgsApplication::getThemeIcon( "/mActionZoomIn.png" ) );
mActionZoomOut->setIcon( QgsApplication::getThemeIcon( "/mActionZoomOut.png" ) );
mActionRefreshView->setIcon( QgsApplication::getThemeIcon( "/mActionDraw.png" ) );
mActionUndo->setIcon( QgsApplication::getThemeIcon( "/mActionUndo.png" ) );
mActionRedo->setIcon( QgsApplication::getThemeIcon( "/mActionRedo.png" ) );
mActionAddImage->setIcon( QgsApplication::getThemeIcon( "/mActionAddImage.png" ) );
mActionAddNewMap->setIcon( QgsApplication::getThemeIcon( "/mActionAddMap.png" ) );
mActionAddNewLabel->setIcon( QgsApplication::getThemeIcon( "/mActionLabel.png" ) );
mActionAddNewLegend->setIcon( QgsApplication::getThemeIcon( "/mActionAddLegend.png" ) );
mActionAddNewScalebar->setIcon( QgsApplication::getThemeIcon( "/mActionScaleBar.png" ) );
mActionAddRectangle->setIcon( QgsApplication::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddTriangle->setIcon( QgsApplication::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddEllipse->setIcon( QgsApplication::getThemeIcon( "/mActionAddBasicShape.png" ) );
mActionAddArrow->setIcon( QgsApplication::getThemeIcon( "/mActionAddArrow.png" ) );
mActionAddTable->setIcon( QgsApplication::getThemeIcon( "/mActionOpenTable.png" ) );
mActionAddHtml->setIcon( QgsApplication::getThemeIcon( "/mActionAddHtml.png" ) );
mActionSelectMoveItem->setIcon( QgsApplication::getThemeIcon( "/mActionSelectPan.png" ) );
mActionMoveItemContent->setIcon( QgsApplication::getThemeIcon( "/mActionMoveItemContent.png" ) );
mActionGroupItems->setIcon( QgsApplication::getThemeIcon( "/mActionGroupItems.png" ) );
mActionUngroupItems->setIcon( QgsApplication::getThemeIcon( "/mActionUngroupItems.png" ) );
mActionRaiseItems->setIcon( QgsApplication::getThemeIcon( "/mActionRaiseItems.png" ) );
mActionLowerItems->setIcon( QgsApplication::getThemeIcon( "/mActionLowerItems.png" ) );
mActionMoveItemsToTop->setIcon( QgsApplication::getThemeIcon( "/mActionMoveItemsToTop.png" ) );
mActionMoveItemsToBottom->setIcon( QgsApplication::getThemeIcon( "/mActionMoveItemsToBottom.png" ) );
mActionAlignLeft->setIcon( QgsApplication::getThemeIcon( "/mActionAlignLeft.png" ) );
mActionAlignHCenter->setIcon( QgsApplication::getThemeIcon( "/mActionAlignHCenter.png" ) );
mActionAlignRight->setIcon( QgsApplication::getThemeIcon( "/mActionAlignRight.png" ) );
mActionAlignTop->setIcon( QgsApplication::getThemeIcon( "/mActionAlignTop.png" ) );
mActionAlignVCenter->setIcon( QgsApplication::getThemeIcon( "/mActionAlignVCenter.png" ) );
mActionAlignBottom->setIcon( QgsApplication::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::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( composerHtmlFrameAdded( QgsComposerHtml*, QgsComposerFrame* ) ), this, SLOT( addComposerHtmlFrame( QgsComposerHtml*, QgsComposerFrame* ) ) );
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()
{
bool shown = isVisible();
show();
raise();
setWindowState( windowState() & ~Qt::WindowMinimized );
activateWindow();
if ( !shown )
{
on_mActionZoomAll_triggered();
}
}
#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 );
}
}
QDialog* QgsComposer::busyIndicatorDialog( const QString& message, QWidget* parent )
{
QDialog* dlg = new QDialog( parent );
dlg->setLayout( new QVBoxLayout() );
dlg->setWindowModality( Qt::WindowModal );
dlg->setAttribute( Qt::WA_DeleteOnClose );
dlg->setMinimumWidth( 250 );
if ( !message.isEmpty() )
{
dlg->layout()->addWidget( new QLabel( message ) );
}
QProgressBar* pb = new QProgressBar();
pb->setMaximum( 0 ); // show as busy indicator
dlg->layout()->addWidget( pb );
return dlg;
}
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;
}
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()
{
if ( !mComposition || !mView )
{
return;
}
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
bool hasAnAtlas = mComposition->atlasComposition().enabled();
bool atlasOnASingleFile = hasAnAtlas && mComposition->atlasComposition().singleFile();
QgsAtlasComposition* atlasMap = &mComposition->atlasComposition();
QString outputFileName;
QString outputDir;
if ( !hasAnAtlas || atlasOnASingleFile )
{
QSettings myQSettings; // where we keep last used filter in persistent state
QString lastUsedFile = myQSettings.value( "/UI/lastSaveAsPdfFile", "qgis.pdf" ).toString();
QFileInfo file( lastUsedFile );
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 );
}
// else, we need to choose a directory
else
{
if ( atlasMap->filenamePattern().size() == 0 )
{
int res = QMessageBox::warning( 0, tr( "Empty filename pattern" ),
tr( "The filename pattern is empty. A default one will be used." ),
QMessageBox::Ok | QMessageBox::Cancel,
QMessageBox::Ok );
if ( res == QMessageBox::Cancel )
{
return;
}
atlasMap->setFilenamePattern( "'output_'||$feature" );
}
QSettings myQSettings;
QString lastUsedDir = myQSettings.value( "/UI/lastSaveAtlasAsPdfDir", "." ).toString();
outputDir = QFileDialog::getExistingDirectory( this,
tr( "Directory where to save PDF files" ),
lastUsedDir,
QFileDialog::ShowDirsOnly );
if ( outputDir.isEmpty() )
{
return;
}
// test directory (if it exists and is writeable)
if ( !QDir( outputDir ).exists() || !QFileInfo( outputDir ).isWritable() )
{
QMessageBox::warning( 0, tr( "Unable to write into the directory" ),
tr( "The given output directory is not writeable. Cancelling." ),
QMessageBox::Ok,
QMessageBox::Ok );
return;
}
myQSettings.setValue( "/UI/lastSaveAtlasAsPdfDir", outputDir );
}
mView->setPaintingEnabled( false );
if ( hasAnAtlas )
{
QPrinter printer;
QPainter painter;
try
{
atlasMap->beginRender();
}
catch ( std::exception& e )
{
QMessageBox::warning( this, tr( "Atlas processing error" ),
e.what(),
QMessageBox::Ok,
QMessageBox::Ok );
mView->setPaintingEnabled( true );
return;
}
if ( atlasOnASingleFile )
{
mComposition->beginPrintAsPDF( printer, outputFileName );
// set the correct resolution
mComposition->beginPrint( printer );
painter.begin( &printer );
}
QProgressDialog progress( tr( "Rendering maps..." ), tr( "Abort" ), 0, atlasMap->numFeatures(), this );
QApplication::setOverrideCursor( Qt::BusyCursor );
for ( size_t featureI = 0; featureI < atlasMap->numFeatures(); ++featureI )
{
progress.setValue( featureI );
// process input events in order to allow aborting
QCoreApplication::processEvents();
if ( progress.wasCanceled() )
{
atlasMap->endRender();
break;
}
try
{
atlasMap->prepareForFeature( featureI );
}
catch ( std::runtime_error& e )
{
QMessageBox::warning( this, tr( "Atlas processing error" ),
e.what(),
QMessageBox::Ok,
QMessageBox::Ok );
mView->setPaintingEnabled( true );
return;
}
if ( !atlasOnASingleFile )
{
outputFileName = QDir( outputDir ).filePath( atlasMap->currentFilename() ) + ".pdf";
mComposition->beginPrintAsPDF( printer, outputFileName );
// set the correct resolution
mComposition->beginPrint( printer );
painter.begin( &printer );
mComposition->doPrint( printer, painter );
painter.end();
}
else
{
if ( featureI > 0 )
{
printer.newPage();
}
mComposition->doPrint( printer, painter );
}
}
atlasMap->endRender();
if ( atlasOnASingleFile )
{
painter.end();
}
}
else
{
mComposition->exportAsPDF( outputFileName );
}
mView->setPaintingEnabled( true );
QApplication::restoreOverrideCursor();
}
void QgsComposer::on_mActionPrint_triggered()
{
if ( !mComposition || !mView )
{
return;
}
if ( containsWMSLayer() )
{
showWMSPrintingWarning();
}
//orientation and page size are already set to QPrinter in the page setup dialog
QPrintDialog printDialog( &mPrinter, 0 );
if ( printDialog.exec() != QDialog::Accepted )
{
return;
}
QApplication::setOverrideCursor( Qt::BusyCursor );
mView->setPaintingEnabled( false );
QgsAtlasComposition* atlasMap = &mComposition->atlasComposition();
if ( !atlasMap->enabled() )
{
mComposition->print( mPrinter );
}
else
{
mComposition->beginPrint( mPrinter );
QPainter painter( &mPrinter );
try
{
atlasMap->beginRender();
}
catch ( std::exception& e )
{
QMessageBox::warning( this, tr( "Atlas processing error" ),
e.what(),
QMessageBox::Ok,
QMessageBox::Ok );
mView->setPaintingEnabled( true );
return;
}
QProgressDialog progress( tr( "Rendering maps..." ), tr( "Abort" ), 0, atlasMap->numFeatures(), this );
for ( size_t i = 0; i < atlasMap->numFeatures(); ++i )
{
progress.setValue( i );
// process input events in order to allow cancelling
QCoreApplication::processEvents();
if ( progress.wasCanceled() )
{
atlasMap->endRender();
break;
}
try
{
atlasMap->prepareForFeature( i );
}
catch ( std::runtime_error& e )
{
QMessageBox::warning( this, tr( "Atlas processing error" ),
e.what(),
QMessageBox::Ok,
QMessageBox::Ok );
mView->setPaintingEnabled( true );
return;
}
if ( i > 0 )
{
mPrinter.newPage();
}
mComposition->doPrint( mPrinter, painter );
}
atlasMap->endRender();
painter.end();
}
mView->setPaintingEnabled( true );
QApplication::restoreOverrideCursor();
}
void QgsComposer::on_mActionExportAsImage_triggered()
{
if ( !mComposition || !mView )
{
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;
}
QgsAtlasComposition* atlasMap = &mComposition->atlasComposition();
if ( !atlasMap->enabled() )
{
QPair<QString, QString> fileNExt = QgisGui::getSaveAsImageName( this, tr( "Choose a file name to save the map image as" ) );
if ( fileNExt.first.isEmpty() )
{
return;
}
mView->setPaintingEnabled( false );
for ( int i = 0; i < mComposition->numPages(); ++i )
{
QImage image = mComposition->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() );
}
}
mView->setPaintingEnabled( true );
}
else
{
// else, it has an atlas to render, so a directory must first be selected
if ( atlasMap->filenamePattern().size() == 0 )
{
int res = QMessageBox::warning( 0, tr( "Empty filename pattern" ),
tr( "The filename pattern is empty. A default one will be used." ),
QMessageBox::Ok | QMessageBox::Cancel,
QMessageBox::Ok );
if ( res == QMessageBox::Cancel )
{
return;
}
atlasMap->setFilenamePattern( "'output_'||$feature" );
}
QSettings myQSettings;
QString lastUsedDir = myQSettings.value( "/UI/lastSaveAtlasAsImagesDir", "." ).toString();
QString lastUsedFormat = myQSettings.value( "/UI/lastSaveAtlasAsImagesFormat", "jpg" ).toString();
QFileDialog dlg( this, tr( "Directory where to save image files" ) );
dlg.setFileMode( QFileDialog::Directory );
dlg.setOption( QFileDialog::ShowDirsOnly, true );
//
// Build an augmented FileDialog with a combo box to select the output format
QComboBox *box = new QComboBox();
QHBoxLayout* hlayout = new QHBoxLayout();
QWidget* widget = new QWidget();
QList<QByteArray> formats = QImageWriter::supportedImageFormats();
int selectedFormat = 0;
for ( int i = 0; i < formats.size(); ++i )
{
QString format = QString( formats.at( i ) );
if ( format == lastUsedFormat )
{
selectedFormat = i;
}
box->addItem( format );
}
box->setCurrentIndex( selectedFormat );
hlayout->setMargin( 0 );
hlayout->addWidget( new QLabel( tr( "Image format: " ) ) );
hlayout->addWidget( box );
widget->setLayout( hlayout );
dlg.layout()->addWidget( widget );
if ( !dlg.exec() )
{
return;
}
QStringList s = dlg.selectedFiles();
if ( s.size() < 1 || s.at( 0 ).isEmpty() )
{
return;
}
QString dir = s.at( 0 );
QString format = box->currentText();
QString fileExt = "." + format;
if ( dir.isEmpty() )
{
return;
}
// test directory (if it exists and is writeable)
if ( !QDir( dir ).exists() || !QFileInfo( dir ).isWritable() )
{
QMessageBox::warning( 0, tr( "Unable to write into the directory" ),
tr( "The given output directory is not writeable. Cancelling." ),