/
qgisapp.cpp
9215 lines (7910 loc) · 298 KB
/
qgisapp.cpp
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/***************************************************************************
qgisapp.cpp - description
-------------------
begin : Sat Jun 22 2002
copyright : (C) 2002 by Gary E.Sherman
email : sherman at mrcc.com
Romans 3:23=>Romans 6:23=>Romans 10:9,10=>Romans 12
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
//
// QT4 includes make sure to use the new <CamelCase> style!
//
#include <QAction>
#include <QApplication>
#include <QBitmap>
#include <QCheckBox>
#include <QClipboard>
#include <QColor>
#include <QCursor>
#include <QDesktopServices>
#include <QDesktopWidget>
#include <QDialog>
#include <QDir>
#include <QDockWidget>
#include <QEvent>
#include <QFile>
#include <QFileInfo>
#include <QImageWriter>
#include <QInputDialog>
#include <QKeyEvent>
#include <QLabel>
#include <QLibrary>
#include <QMenu>
#include <QMenuBar>
#include <QMenuItem>
#include <QMessageBox>
#include <QPainter>
#include <QPictureIO>
#include <QPixmap>
#include <QPoint>
#include <QPrinter>
#include <QProcess>
#include <QProgressBar>
#include <QProgressDialog>
#include <QRegExp>
#include <QRegExpValidator>
#include <QSettings>
#include <QSplashScreen>
#include <QStatusBar>
#include <QStringList>
#include <QTcpSocket>
#include <QTextStream>
#include <QtGlobal>
#include <QTimer>
#include <QToolButton>
#include <QVBoxLayout>
#include <QWhatsThis>
#include <QThread>
#include <qgsnetworkaccessmanager.h>
#include <qgsapplication.h>
#include <qgscomposition.h>
#include <QNetworkReply>
#include <QNetworkProxy>
#include <QAuthenticator>
#if QT_VERSION >= 0x40500
#include <QNetworkDiskCache>
#endif
//
// Mac OS X Includes
// Must include before GEOS 3 due to unqualified use of 'Point'
//
#ifdef Q_OS_MACX
#include <ApplicationServices/ApplicationServices.h>
// check macro breaks QItemDelegate
#ifdef check
#undef check
#endif
#endif
//
// QGIS Specific Includes
//
#include "qgisapp.h"
#include "qgisappinterface.h"
#include "qgisappstylesheet.h"
#include "qgis.h"
#include "qgisplugin.h"
#include "qgsabout.h"
#include "qgsapplication.h"
#include "qgsattributeaction.h"
#include "qgsattributetabledialog.h"
#include "qgsbookmarks.h"
#include "qgsbrowserdockwidget.h"
#include "qgsclipboard.h"
#include "qgscomposer.h"
#include "qgscomposermanager.h"
#include "qgscomposerview.h"
#include "qgsconfigureshortcutsdialog.h"
#include "qgscoordinatetransform.h"
#include "qgscredentialdialog.h"
#include "qgscursors.h"
#include "qgscustomization.h"
#include "qgscustomprojectiondialog.h"
#include "qgsdatasourceuri.h"
#include "qgsdecorationcopyright.h"
#include "qgsdecorationnortharrow.h"
#include "qgsdecorationscalebar.h"
#include "qgsdecorationgrid.h"
#include "qgsencodingfiledialog.h"
#include "qgserror.h"
#include "qgserrordialog.h"
#include "qgsexception.h"
#include "qgsexpressionselectiondialog.h"
#include "qgsfeature.h"
#include "qgsformannotationitem.h"
#include "qgsfieldcalculator.h"
#include "qgshtmlannotationitem.h"
#include "qgsgenericprojectionselector.h"
#include "qgsgpsinformationwidget.h"
#include "qgsguivectorlayertools.h"
#include "qgslabelinggui.h"
#include "qgslegend.h"
#include "qgslayerorder.h"
#include "qgslegendlayer.h"
#include "qgslogger.h"
#include "qgsmapcanvas.h"
#include "qgsmaplayer.h"
#include "qgsmaplayerregistry.h"
#include "qgsmapoverviewcanvas.h"
#include "qgsmaprenderer.h"
#include "qgsmaptip.h"
#include "qgsmergeattributesdialog.h"
#include "qgsmessageviewer.h"
#include "qgsmessagebar.h"
#include "qgsmessagebaritem.h"
#include "qgsmimedatautils.h"
#include "qgsmessagelog.h"
#include "qgsmultibandcolorrenderer.h"
#include "qgsnewvectorlayerdialog.h"
#include "qgsoptions.h"
// #include "qgspastetransformations.h"
#include "qgspluginlayer.h"
#include "qgspluginlayerregistry.h"
#include "qgspluginmanager.h"
#include "qgspluginregistry.h"
#include "qgspoint.h"
#include "qgshandlebadlayers.h"
#include "qgsproject.h"
#include "qgsprojectlayergroupdialog.h"
#include "qgsprojectproperties.h"
#include "qgsproviderregistry.h"
#include "qgspythonrunner.h"
#include "qgsquerybuilder.h"
#include "qgsrastercalcdialog.h"
#include "qgsrasterfilewriter.h"
#include "qgsrasteriterator.h"
#include "qgsrasterlayer.h"
#include "qgsrasterlayerproperties.h"
#include "qgsrasternuller.h"
#include "qgsbrightnesscontrastfilter.h"
#include "qgsrasterrenderer.h"
#include "qgsrasterlayersaveasdialog.h"
#include "qgsrectangle.h"
#include "qgsscalecombobox.h"
#include "qgsshortcutsmanager.h"
#include "qgssinglebandgrayrenderer.h"
#include "qgssnappingdialog.h"
#include "qgssponsors.h"
#include "qgssvgannotationitem.h"
#include "qgstextannotationitem.h"
#include "qgstipgui.h"
#include "qgsundowidget.h"
#include "qgsvectordataprovider.h"
#include "qgsvectorfilewriter.h"
#include "qgsvectorlayer.h"
#include "qgsvectorlayerproperties.h"
#include "qgsmessagelogviewer.h"
#include "qgsdataitem.h"
#include "qgssublayersdialog.h"
#include "ogr/qgsopenvectorlayerdialog.h"
#include "ogr/qgsvectorlayersaveasdialog.h"
#include "qgsosmdownloaddialog.h"
#include "qgsosmimportdialog.h"
#include "qgsosmexportdialog.h"
//
// GDAL/OGR includes
//
#include <ogr_api.h>
#include <proj_api.h>
//
// Other includes
//
#include <algorithm>
#include <cassert>
#include <cmath>
#include <functional>
#include <iomanip>
#include <list>
#include <memory>
#include <vector>
//
// Map tools
//
#include "qgsmaptooladdfeature.h"
#include "qgsmaptooladdpart.h"
#include "qgsmaptooladdring.h"
#include "qgsmaptoolannotation.h"
#include "qgsmaptooldeletering.h"
#include "qgsmaptooldeletepart.h"
#include "qgsmaptoolfeatureaction.h"
#include "qgsmaptoolformannotation.h"
#include "qgsmaptoolhtmlannotation.h"
#include "qgsmaptoolidentifyaction.h"
#include "qgsmaptoolmeasureangle.h"
#include "qgsmaptoolmovefeature.h"
#include "qgsmaptoolrotatefeature.h"
#include "qgsmaptooloffsetcurve.h"
#include "qgsmaptoolpan.h"
#include "qgsmaptoolselect.h"
#include "qgsmaptoolselectrectangle.h"
#include "qgsmaptoolselectfreehand.h"
#include "qgsmaptoolselectpolygon.h"
#include "qgsmaptoolselectradius.h"
#include "qgsmaptoolsvgannotation.h"
#include "qgsmaptoolreshape.h"
#include "qgsmaptoolrotatepointsymbols.h"
#include "qgsmaptoolsplitfeatures.h"
#include "qgsmaptoolsplitparts.h"
#include "qgsmaptooltextannotation.h"
#include "qgsmaptoolvertexedit.h"
#include "qgsmaptoolzoom.h"
#include "qgsmaptoolsimplify.h"
#include "qgsmeasuretool.h"
#include "qgsmaptoolpinlabels.h"
#include "qgsmaptoolshowhidelabels.h"
#include "qgsmaptoolmovelabel.h"
#include "qgsmaptoolrotatelabel.h"
#include "qgsmaptoolchangelabelproperties.h"
#include "nodetool/qgsmaptoolnodetool.h"
// Editor widgets
#include "qgseditorwidgetregistry.h"
#include "qgsrelationreferencefactory.h"
//
// Conditional Includes
//
#ifdef HAVE_PGCONFIG
#include <pg_config.h>
#else
#define PG_VERSION "unknown"
#endif
#include <sqlite3.h>
extern "C"
{
#include <spatialite.h>
}
#include "qgsnewspatialitelayerdialog.h"
#include "qgspythonutils.h"
#ifndef Q_OS_WIN
#include <dlfcn.h>
#else
#include <windows.h>
#include <DbgHelp.h>
#endif
#ifdef HAVE_TOUCH
#include "qgsmaptooltouch.h"
#endif
class QTreeWidgetItem;
// IDs for locating particular menu items
const int BEFORE_RECENT_PATHS = 123;
const int AFTER_RECENT_PATHS = 321;
/** set the application title bar text
If the current project title is null
if the project file is null then
set title text to just application name and version
else
set set title text to the project file name
else
set the title text to project title
*/
static void setTitleBarText_( QWidget & qgisApp )
{
QString caption = QgisApp::tr( "QGIS " );
if ( QString( QGis::QGIS_VERSION ).endsWith( "Master" ) )
{
caption += QString( "%1" ).arg( QGis::QGIS_DEV_VERSION );
}
else
{
caption += QGis::QGIS_VERSION;
}
if ( QgsProject::instance()->title().isEmpty() )
{
if ( QgsProject::instance()->fileName().isEmpty() )
{
// no project title nor file name, so just leave caption with
// application name and version
}
else
{
QFileInfo projectFileInfo( QgsProject::instance()->fileName() );
caption += " - " + projectFileInfo.completeBaseName();
}
}
else
{
caption += " - " + QgsProject::instance()->title();
}
qgisApp.setWindowTitle( caption );
} // setTitleBarText_( QWidget * qgisApp )
/**
Creator function for output viewer
*/
static QgsMessageOutput *messageOutputViewer_()
{
if ( QThread::currentThread() == QApplication::instance()->thread() )
return new QgsMessageViewer( QgisApp::instance() );
else
return new QgsMessageOutputConsole();
}
static void customSrsValidation_( QgsCoordinateReferenceSystem &srs )
{
QgisApp::instance()->emitCustomSrsValidation( srs );
}
void QgisApp::emitCustomSrsValidation( QgsCoordinateReferenceSystem &srs )
{
emit customSrsValidation( srs );
}
/**
* This function contains forced validation of CRS used in QGIS.
* There are 3 options depending on the settings:
* - ask for CRS using projection selecter
* - use project's CRS
* - use predefined global CRS
*/
void QgisApp::validateSrs( QgsCoordinateReferenceSystem &srs )
{
static QString authid = QString::null;
QSettings mySettings;
QString myDefaultProjectionOption = mySettings.value( "/Projections/defaultBehaviour", "prompt" ).toString();
if ( myDefaultProjectionOption == "prompt" )
{
//@note this class is not a descendent of QWidget so we cant pass
//it in the ctor of the layer projection selector
QgsGenericProjectionSelector *mySelector = new QgsGenericProjectionSelector();
mySelector->setMessage( srs.validationHint() ); //shows a generic message, if not specified
if ( authid.isNull() )
authid = QgisApp::instance()->mapCanvas()->mapSettings().destinationCrs().authid();
QgsCoordinateReferenceSystem defaultCrs;
if ( defaultCrs.createFromOgcWmsCrs( authid ) )
{
mySelector->setSelectedCrsId( defaultCrs.srsid() );
}
bool waiting = QApplication::overrideCursor() && QApplication::overrideCursor()->shape() == Qt::WaitCursor;
if ( waiting )
QApplication::setOverrideCursor( Qt::ArrowCursor );
if ( mySelector->exec() )
{
QgsDebugMsg( "Layer srs set from dialog: " + QString::number( mySelector->selectedCrsId() ) );
authid = mySelector->selectedAuthId();
srs.createFromOgcWmsCrs( mySelector->selectedAuthId() );
}
if ( waiting )
QApplication::restoreOverrideCursor();
delete mySelector;
}
else if ( myDefaultProjectionOption == "useProject" )
{
// XXX TODO: Change project to store selected CS as 'projectCRS' not 'selectedWkt'
authid = QgisApp::instance()->mapCanvas()->mapSettings().destinationCrs().authid();
QgsDebugMsg( "Layer srs set from project: " + authid );
QgisApp::instance()->statusBar()->showMessage( tr( "CRS undefined - defaulting to project CRS" ) );
srs.createFromOgcWmsCrs( authid );
}
else ///Projections/defaultBehaviour==useGlobal
{
authid = mySettings.value( "/Projections/layerDefaultCrs", GEO_EPSG_CRS_AUTHID ).toString();
srs.createFromOgcWmsCrs( authid );
QgisApp::instance()->statusBar()->showMessage( tr( "CRS undefined - defaulting to default CRS: %1" ).arg( authid ) );
}
}
static bool cmpByText_( QAction* a, QAction* b )
{
return QString::localeAwareCompare( a->text(), b->text() ) < 0;
}
QgisApp *QgisApp::smInstance = 0;
// constructor starts here
QgisApp::QgisApp( QSplashScreen *splash, bool restorePlugins, QWidget * parent, Qt::WFlags fl )
: QMainWindow( parent, fl )
, mSplash( splash )
, mInternalClipboard( 0 )
, mShowProjectionTab( false )
, mPythonUtils( NULL )
#ifdef Q_OS_WIN
, mSkipNextContextMenuEvent( 0 )
#endif
, mpGpsWidget( NULL )
{
if ( smInstance )
{
QMessageBox::critical(
this,
tr( "Multiple Instances of QgisApp" ),
tr( "Multiple instances of QGIS application object detected.\nPlease contact the developers.\n" ) );
abort();
}
smInstance = this;
namSetup();
// load GUI: actions, menus, toolbars
setupUi( this );
//////////
mSplash->showMessage( tr( "Checking database" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
// Do this early on before anyone else opens it and prevents us copying it
QString dbError;
if ( !QgsApplication::createDB( &dbError ) )
{
QMessageBox::critical( this, tr( "Private qgis.db" ), dbError );
}
mSplash->showMessage( tr( "Reading settings" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
mSplash->showMessage( tr( "Setting up the GUI" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
QSettings settings;
// set up stylesheet builder and apply saved or default style options
mStyleSheetBuilder = new QgisAppStyleSheet( this );
connect( mStyleSheetBuilder, SIGNAL( appStyleSheetChanged( const QString& ) ),
this, SLOT( setAppStyleSheet( const QString& ) ) );
mStyleSheetBuilder->buildStyleSheet( mStyleSheetBuilder->defaultOptions() );
QWidget *centralWidget = this->centralWidget();
QGridLayout *centralLayout = new QGridLayout( centralWidget );
centralWidget->setLayout( centralLayout );
centralLayout->setContentsMargins( 0, 0, 0, 0 );
// "theMapCanvas" used to find this canonical instance later
mMapCanvas = new QgsMapCanvas( centralWidget, "theMapCanvas" );
mMapCanvas->setWhatsThis( tr( "Map canvas. This is where raster and vector "
"layers are displayed when added to the map" ) );
// set canvas color right away
int myRed = settings.value( "/qgis/default_canvas_color_red", 255 ).toInt();
int myGreen = settings.value( "/qgis/default_canvas_color_green", 255 ).toInt();
int myBlue = settings.value( "/qgis/default_canvas_color_blue", 255 ).toInt();
mMapCanvas->setCanvasColor( QColor( myRed, myGreen, myBlue ) );
centralLayout->addWidget( mMapCanvas, 0, 0, 2, 1 );
// a bar to warn the user with non-blocking messages
mInfoBar = new QgsMessageBar( centralWidget );
mInfoBar->setSizePolicy( QSizePolicy::Minimum, QSizePolicy::Fixed );
centralLayout->addWidget( mInfoBar, 0, 0, 1, 1 );
//set the focus to the map canvas
mMapCanvas->setFocus();
// "theMapLegend" used to find this canonical instance later
mMapLegend = new QgsLegend( mMapCanvas, this, "theMapLegend" );
mMapLayerOrder = new QgsLayerOrder( mMapLegend, this, "theMapLayerOrder" );
// create undo widget
mUndoWidget = new QgsUndoWidget( NULL, mMapCanvas );
mUndoWidget->setObjectName( "Undo" );
createActions();
createActionGroups();
createMenus();
createToolBars();
createStatusBar();
createCanvasTools();
mMapCanvas->freeze();
initLegend();
createOverview();
createMapTips();
createDecorations();
readSettings();
updateRecentProjectPaths();
updateProjectFromTemplates();
legendLayerSelectionChanged();
mSaveRollbackInProgress = false;
// initialize the plugin manager
mPluginManager = new QgsPluginManager( this, restorePlugins );
addDockWidget( Qt::LeftDockWidgetArea, mUndoWidget );
mUndoWidget->hide();
mSnappingDialog = new QgsSnappingDialog( this, mMapCanvas );
mSnappingDialog->setObjectName( "SnappingOption" );
mBrowserWidget = new QgsBrowserDockWidget( tr( "Browser" ), this );
mBrowserWidget->setObjectName( "Browser" );
addDockWidget( Qt::LeftDockWidgetArea, mBrowserWidget );
mBrowserWidget->hide();
mBrowserWidget2 = new QgsBrowserDockWidget( tr( "Browser (2)" ), this );
mBrowserWidget2->setObjectName( "Browser2" );
addDockWidget( Qt::LeftDockWidgetArea, mBrowserWidget2 );
mBrowserWidget2->hide();
// create the GPS tool on starting QGIS - this is like the browser
mpGpsWidget = new QgsGPSInformationWidget( mMapCanvas );
//create the dock widget
mpGpsDock = new QDockWidget( tr( "GPS Information" ), this );
mpGpsDock->setObjectName( "GPSInformation" );
mpGpsDock->setAllowedAreas( Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea );
addDockWidget( Qt::LeftDockWidgetArea, mpGpsDock );
// add to the Panel submenu
// now add our widget to the dock - ownership of the widget is passed to the dock
mpGpsDock->setWidget( mpGpsWidget );
mpGpsDock->hide();
mLogViewer = new QgsMessageLogViewer( statusBar(), this );
mLogDock = new QDockWidget( tr( "Log Messages" ), this );
mLogDock->setObjectName( "MessageLog" );
mLogDock->setAllowedAreas( Qt::BottomDockWidgetArea | Qt::TopDockWidgetArea );
addDockWidget( Qt::BottomDockWidgetArea, mLogDock );
mLogDock->setWidget( mLogViewer );
mLogDock->hide();
mVectorLayerTools = new QgsGuiVectorLayerTools();
// Init the editor widget types
QgsEditorWidgetRegistry* editorWidgetRegistry = QgsEditorWidgetRegistry::instance();
QgsAttributeEditorContext context;
context.setVectorLayerTools( vectorLayerTools() );
editorWidgetRegistry->registerWidget( "RelationReference", new QgsRelationReferenceFactory( context, tr( "Relation Reference" ) ) );
mInternalClipboard = new QgsClipboard; // create clipboard
connect( mInternalClipboard, SIGNAL( changed() ), this, SLOT( clipboardChanged() ) );
mQgisInterface = new QgisAppInterface( this ); // create the interfce
#ifdef Q_WS_MAC
// action for Window menu (create before generating WindowTitleChange event))
mWindowAction = new QAction( this );
connect( mWindowAction, SIGNAL( triggered() ), this, SLOT( activate() ) );
// add this window to Window menu
addWindow( mWindowAction );
#endif
activateDeactivateLayerRelatedActions( NULL ); // after members were created
// set application's caption
QString caption = tr( "QGIS - %1 ('%2')" ).arg( QGis::QGIS_VERSION ).arg( QGis::QGIS_RELEASE_NAME );
setWindowTitle( caption );
QgsMessageLog::logMessage( tr( "QGIS starting..." ), QString::null, QgsMessageLog::INFO );
// set QGIS specific srs validation
connect( this, SIGNAL( customSrsValidation( QgsCoordinateReferenceSystem& ) ),
this, SLOT( validateSrs( QgsCoordinateReferenceSystem& ) ) );
QgsCoordinateReferenceSystem::setCustomSrsValidation( customSrsValidation_ );
// set graphical message output
QgsMessageOutput::setMessageOutputCreator( messageOutputViewer_ );
// set graphical credential requester
new QgsCredentialDialog( this );
qApp->processEvents();
// load providers
mSplash->showMessage( tr( "Checking provider plugins" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
QgsApplication::initQgis();
mSplash->showMessage( tr( "Starting Python" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
loadPythonSupport();
// Create the plugin registry and load plugins
// load any plugins that were running in the last session
mSplash->showMessage( tr( "Restoring loaded plugins" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
QgsPluginRegistry::instance()->setQgisInterface( mQgisInterface );
if ( restorePlugins )
{
// Restoring of plugins can be disabled with --noplugins command line option
// because some plugins may cause QGIS to crash during startup
QgsPluginRegistry::instance()->restoreSessionPlugins( QgsApplication::pluginPath() );
// Also restore plugins from user specified plugin directories - added for 1.7
QString myPaths = settings.value( "plugins/searchPathsForPlugins", "" ).toString();
if ( !myPaths.isEmpty() )
{
QStringList myPathList = myPaths.split( "|" );
QgsPluginRegistry::instance()->restoreSessionPlugins( myPathList );
}
}
if ( mPythonUtils && mPythonUtils->isEnabled() )
{
// initialize the plugin installer to start fetching repositories in background
QgsPythonRunner::run( "import pyplugin_installer" );
QgsPythonRunner::run( "pyplugin_installer.initPluginInstaller()" );
// enable Python in the Plugin Manager and pass the PythonUtils to it
mPluginManager -> setPythonUtils( mPythonUtils );
}
mSplash->showMessage( tr( "Initializing file filters" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
// now build vector and raster file filters
mVectorFileFilter = QgsProviderRegistry::instance()->fileVectorFilters();
mRasterFileFilter = QgsProviderRegistry::instance()->fileRasterFilters();
// set handler for missing layers (will be owned by QgsProject)
QgsProject::instance()->setBadLayerHandler( new QgsHandleBadLayersHandler() );
#if 0
// Set the background color for toolbox and overview as they default to
// white instead of the window color
QPalette myPalette = toolBox->palette();
myPalette.setColor( QPalette::Button, myPalette.window().color() );
toolBox->setPalette( myPalette );
//do the same for legend control
myPalette = toolBox->palette();
myPalette.setColor( QPalette::Button, myPalette.window().color() );
mMapLegend->setPalette( myPalette );
//and for overview control this is done in createOverView method
#endif
// Do this last in the ctor to ensure that all members are instantiated properly
setupConnections();
//
// Please make sure this is the last thing the ctor does so that we can ensure the
// widgets are all initialised before trying to restore their state.
//
mSplash->showMessage( tr( "Restoring window state" ), Qt::AlignHCenter | Qt::AlignBottom );
qApp->processEvents();
restoreWindowState();
// do main window customization - after window state has been restored, before the window is shown
QgsCustomization::instance()->updateMainWindow( mToolbarMenu );
mSplash->showMessage( tr( "QGIS Ready!" ), Qt::AlignHCenter | Qt::AlignBottom );
QgsMessageLog::logMessage( QgsApplication::showSettings(), QString::null, QgsMessageLog::INFO );
QgsMessageLog::logMessage( tr( "QGIS Ready!" ), QString::null, QgsMessageLog::INFO );
mMapTipsVisible = false;
mTrustedMacros = false;
// setup drag drop
setAcceptDrops( true );
mFullScreenMode = false;
mPrevScreenModeMaximized = false;
show();
qApp->processEvents();
mMapCanvas->freeze( false );
mMapCanvas->clearExtentHistory(); // reset zoomnext/zoomlast
mLastComposerId = 0;
// Show a nice tip of the day
if ( settings.value( "/qgis/showTips", 1 ).toBool() )
{
mSplash->hide();
QgsTipGui myTip;
myTip.exec();
}
else
{
QgsDebugMsg( "Tips are disabled" );
}
#ifdef HAVE_TOUCH
//add reacting to long click in touch
grabGesture( Qt::TapAndHoldGesture );
#else
//remove mActionTouch button
delete mActionTouch;
mActionTouch = 0;
#endif
// supposedly all actions have been added, now register them to the shortcut manager
QgsShortcutsManager::instance()->registerAllChildrenActions( this );
QgsProviderRegistry::instance()->registerGuis( this );
// update windows
qApp->processEvents();
fileNewBlank(); // prepare empty project, also skips any default templates from loading
// request notification of FileOpen events (double clicking a file icon in Mac OS X Finder)
// should come after fileNewBlank to ensure project is properly set up to receive any data source files
QgsApplication::setFileOpenEventReceiver( this );
#ifdef ANDROID
toggleFullScreen();
#endif
} // QgisApp ctor
QgisApp::QgisApp( )
: QMainWindow( 0, 0 )
, mOverviewMapCursor( 0 )
, mQgisInterface( 0 )
, mInternalClipboard( 0 )
, mpMaptip( 0 )
, mPythonUtils( 0 )
, mpGpsWidget( 0 )
{
smInstance = this;
setupUi( this );
mInternalClipboard = new QgsClipboard;
mMapCanvas = new QgsMapCanvas();
mMapCanvas->freeze();
mMapLegend = new QgsLegend( mMapCanvas );
mUndoWidget = new QgsUndoWidget( NULL, mMapCanvas );
// More tests may need more members to be initialized
}
QgisApp::~QgisApp()
{
mMapCanvas->stopRendering();
delete mInternalClipboard;
delete mQgisInterface;
delete mStyleSheetBuilder;
delete mMapTools.mZoomIn;
delete mMapTools.mZoomOut;
delete mMapTools.mPan;
#ifdef HAVE_TOUCH
delete mMapTools.mTouch;
#endif
delete mMapTools.mAddFeature;
delete mMapTools.mAddPart;
delete mMapTools.mAddRing;
delete mMapTools.mAnnotation;
delete mMapTools.mChangeLabelProperties;
delete mMapTools.mDeletePart;
delete mMapTools.mDeleteRing;
delete mMapTools.mFeatureAction;
delete mMapTools.mFormAnnotation;
delete mMapTools.mHtmlAnnotation;
delete mMapTools.mIdentify;
delete mMapTools.mMeasureAngle;
delete mMapTools.mMeasureArea;
delete mMapTools.mMeasureDist;
delete mMapTools.mMoveFeature;
delete mMapTools.mMoveLabel;
delete mMapTools.mNodeTool;
delete mMapTools.mOffsetCurve;
delete mMapTools.mPinLabels;
delete mMapTools.mReshapeFeatures;
delete mMapTools.mRotateFeature;
delete mMapTools.mRotateLabel;
delete mMapTools.mRotatePointSymbolsTool;
delete mMapTools.mSelect;
delete mMapTools.mSelectFreehand;
delete mMapTools.mSelectPolygon;
delete mMapTools.mSelectRadius;
delete mMapTools.mSelectRectangle;
delete mMapTools.mShowHideLabels;
delete mMapTools.mSimplifyFeature;
delete mMapTools.mSplitFeatures;
delete mMapTools.mSplitParts;
delete mMapTools.mSvgAnnotation;
delete mMapTools.mTextAnnotation;
delete mpMaptip;
delete mpGpsWidget;
delete mOverviewMapCursor;
deletePrintComposers();
removeAnnotationItems();
// cancel request for FileOpen events
QgsApplication::setFileOpenEventReceiver( 0 );
QgsApplication::exitQgis();
delete QgsProject::instance();
delete mPythonUtils;
}
void QgisApp::dragEnterEvent( QDragEnterEvent *event )
{
if ( event->mimeData()->hasUrls() || event->mimeData()->hasFormat( "application/x-vnd.qgis.qgis.uri" ) )
{
event->acceptProposedAction();
}
}
void QgisApp::dropEvent( QDropEvent *event )
{
mMapCanvas->freeze();
// get the file list
QList<QUrl>::iterator i;
QList<QUrl>urls = event->mimeData()->urls();
for ( i = urls.begin(); i != urls.end(); i++ )
{
QString fileName = i->toLocalFile();
// seems that some drag and drop operations include an empty url
// so we test for length to make sure we have something
if ( !fileName.isEmpty() )
{
openFile( fileName );
}
}
if ( QgsMimeDataUtils::isUriList( event->mimeData() ) )
{
QgsMimeDataUtils::UriList lst = QgsMimeDataUtils::decodeUriList( event->mimeData() );
foreach ( const QgsMimeDataUtils::Uri& u, lst )
{
if ( u.layerType == "vector" )
{
addVectorLayer( u.uri, u.name, u.providerKey );
}
else if ( u.layerType == "raster" )
{
addRasterLayer( u.uri, u.name, u.providerKey );
}
}
}
mMapCanvas->freeze( false );
mMapCanvas->refresh();
event->acceptProposedAction();
}
bool QgisApp::event( QEvent * event )
{
bool done = false;
if ( event->type() == QEvent::FileOpen )
{
// handle FileOpen event (double clicking a file icon in Mac OS X Finder)
QFileOpenEvent *foe = static_cast<QFileOpenEvent *>( event );
openFile( foe->file() );
done = true;
}
#ifdef HAVE_TOUCH
else if ( event->type() == QEvent::Gesture )
{
done = gestureEvent( static_cast<QGestureEvent*>( event ) );
}
#endif
else
{
// pass other events to base class
done = QMainWindow::event( event );
}
return done;
}
QgisAppStyleSheet* QgisApp::styleSheetBuilder()
{
Q_ASSERT( mStyleSheetBuilder );
return mStyleSheetBuilder;
}
// restore any application settings stored in QSettings
void QgisApp::readSettings()
{
QSettings settings;
// get the users theme preference from the settings
// 'gis' theme is new /themes/default directory (2013-04-15)
setTheme( settings.value( "/Themes", "default" ).toString() );
// Add the recently accessed project file paths to the Project menu
mRecentProjectPaths = settings.value( "/UI/recentProjectsList" ).toStringList();
// this is a new session! reset enable macros value to "ask"
// whether set to "just for this session"
if ( settings.value( "/qgis/enableMacros", 1 ).toInt() == 2 )
{
settings.setValue( "/qgis/enableMacros", 1 );
}
}
//////////////////////////////////////////////////////////////////////
// Set Up the gui toolbars, menus, statusbar etc
//////////////////////////////////////////////////////////////////////
void QgisApp::createActions()
{
mActionPluginSeparator1 = NULL; // plugin list separator will be created when the first plugin is loaded
mActionPluginSeparator2 = NULL; // python separator will be created only if python is found
mActionRasterSeparator = NULL; // raster plugins list separator will be created when the first plugin is loaded
// Project Menu Items
connect( mActionNewProject, SIGNAL( triggered() ), this, SLOT( fileNew() ) );
connect( mActionNewBlankProject, SIGNAL( triggered() ), this, SLOT( fileNewBlank() ) );
connect( mActionOpenProject, SIGNAL( triggered() ), this, SLOT( fileOpen() ) );
connect( mActionSaveProject, SIGNAL( triggered() ), this, SLOT( fileSave() ) );
connect( mActionSaveProjectAs, SIGNAL( triggered() ), this, SLOT( fileSaveAs() ) );
connect( mActionSaveMapAsImage, SIGNAL( triggered() ), this, SLOT( saveMapAsImage() ) );
connect( mActionNewPrintComposer, SIGNAL( triggered() ), this, SLOT( newPrintComposer() ) );
connect( mActionShowComposerManager, SIGNAL( triggered() ), this, SLOT( showComposerManager() ) );
connect( mActionExit, SIGNAL( triggered() ), this, SLOT( fileExit() ) );
// Edit Menu Items
connect( mActionUndo, SIGNAL( triggered() ), mUndoWidget, SLOT( undo() ) );
connect( mActionRedo, SIGNAL( triggered() ), mUndoWidget, SLOT( redo() ) );
connect( mActionCutFeatures, SIGNAL( triggered() ), this, SLOT( editCut() ) );
connect( mActionCopyFeatures, SIGNAL( triggered() ), this, SLOT( editCopy() ) );
connect( mActionPasteFeatures, SIGNAL( triggered() ), this, SLOT( editPaste() ) );
connect( mActionPasteAsNewVector, SIGNAL( triggered() ), this, SLOT( pasteAsNewVector() ) );
connect( mActionPasteAsNewMemoryVector, SIGNAL( triggered() ), this, SLOT( pasteAsNewMemoryVector() ) );
connect( mActionCopyStyle, SIGNAL( triggered() ), this, SLOT( copyStyle() ) );
connect( mActionPasteStyle, SIGNAL( triggered() ), this, SLOT( pasteStyle() ) );
connect( mActionAddFeature, SIGNAL( triggered() ), this, SLOT( addFeature() ) );
connect( mActionMoveFeature, SIGNAL( triggered() ), this, SLOT( moveFeature() ) );
connect( mActionRotateFeature, SIGNAL( triggered() ), this, SLOT( rotateFeature() ) );
connect( mActionReshapeFeatures, SIGNAL( triggered() ), this, SLOT( reshapeFeatures() ) );
connect( mActionSplitFeatures, SIGNAL( triggered() ), this, SLOT( splitFeatures() ) );
connect( mActionSplitParts, SIGNAL( triggered() ), this, SLOT( splitParts() ) );
connect( mActionDeleteSelected, SIGNAL( triggered() ), this, SLOT( deleteSelected() ) );
connect( mActionAddRing, SIGNAL( triggered() ), this, SLOT( addRing() ) );
connect( mActionAddPart, SIGNAL( triggered() ), this, SLOT( addPart() ) );
connect( mActionSimplifyFeature, SIGNAL( triggered() ), this, SLOT( simplifyFeature() ) );
connect( mActionDeleteRing, SIGNAL( triggered() ), this, SLOT( deleteRing() ) );
connect( mActionDeletePart, SIGNAL( triggered() ), this, SLOT( deletePart() ) );
connect( mActionMergeFeatures, SIGNAL( triggered() ), this, SLOT( mergeSelectedFeatures() ) );
connect( mActionMergeFeatureAttributes, SIGNAL( triggered() ), this, SLOT( mergeAttributesOfSelectedFeatures() ) );
connect( mActionNodeTool, SIGNAL( triggered() ), this, SLOT( nodeTool() ) );
connect( mActionRotatePointSymbols, SIGNAL( triggered() ), this, SLOT( rotatePointSymbols() ) );
connect( mActionSnappingOptions, SIGNAL( triggered() ), this, SLOT( snappingOptions() ) );
connect( mActionOffsetCurve, SIGNAL( triggered() ), this, SLOT( offsetCurve() ) );
// View Menu Items
#ifdef HAVE_TOUCH
connect( mActionTouch, SIGNAL( triggered() ), this, SLOT( touch() ) );
#endif
connect( mActionPan, SIGNAL( triggered() ), this, SLOT( pan() ) );