bool QgsProject::addLayer( const QDomElement& layerElem, QList<QDomNode>& brokenNodes, QList< QPair< QgsVectorLayer*, QDomElement > >& vectorLayerList )
{
QString type = layerElem.attribute( "type" );
QgsDebugMsg( "Layer type is " + type );
QgsMapLayer *mapLayer = NULL;
if ( type == "vector" )
{
mapLayer = new QgsVectorLayer;
}
else if ( type == "raster" )
{
mapLayer = new QgsRasterLayer;
}
else if ( type == "plugin" )
{
QString typeName = layerElem.attribute( "name" );
mapLayer = QgsPluginLayerRegistry::instance()->createLayer( typeName );
}
if ( !mapLayer )
{
QgsDebugMsg( "Unable to create layer" );
return false;
}
Q_CHECK_PTR( mapLayer );
// have the layer restore state that is stored in Dom node
if ( mapLayer->readLayerXML( layerElem ) && mapLayer->isValid() )
{
emit readMapLayer( mapLayer, layerElem );
QList<QgsMapLayer *> myLayers;
myLayers << mapLayer;
QgsMapLayerRegistry::instance()->addMapLayers( myLayers );
QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
if ( vLayer && vLayer->vectorJoins().size() > 0 )
{
vectorLayerList.push_back( qMakePair( vLayer, layerElem ) );
}
return true;
}
else
{
delete mapLayer;
QgsDebugMsg( "Unable to load " + type + " layer" );
brokenNodes.push_back( layerElem );
return false;
}
}
void QgsLegendLayer::addToPopupMenu( QMenu& theMenu )
{
QgsMapLayer *lyr = layer();
QAction *toggleEditingAction = QgisApp::instance()->actionToggleEditing();
QAction *saveLayerEditsAction = QgisApp::instance()->actionSaveActiveLayerEdits();
QAction *allEditsAction = QgisApp::instance()->actionAllEdits();
// zoom to layer extent
theMenu.addAction( QgsApplication::getThemeIcon( "/mActionZoomToLayer.svg" ),
tr( "&Zoom to Layer Extent" ), legend(), SLOT( legendLayerZoom() ) );
if ( lyr->type() == QgsMapLayer::RasterLayer )
{
theMenu.addAction( tr( "&Zoom to Best Scale (100%)" ), legend(), SLOT( legendLayerZoomNative() ) );
QgsRasterLayer *rasterLayer = qobject_cast<QgsRasterLayer *>( lyr );
if ( rasterLayer && rasterLayer->rasterType() != QgsRasterLayer::Palette )
{
theMenu.addAction( tr( "&Stretch Using Current Extent" ), legend(), SLOT( legendLayerStretchUsingCurrentExtent() ) );
}
}
// show in overview
QAction* showInOverviewAction = theMenu.addAction( tr( "&Show in Overview" ), this, SLOT( showInOverview() ) );
showInOverviewAction->setCheckable( true );
showInOverviewAction->blockSignals( true );
showInOverviewAction->setChecked( mLyr.isInOverview() );
showInOverviewAction->blockSignals( false );
// remove from canvas
theMenu.addAction( QgsApplication::getThemeIcon( "/mActionRemoveLayer.svg" ), tr( "&Remove" ), QgisApp::instance(), SLOT( removeLayer() ) );
// duplicate layer
QAction* duplicateLayersAction = theMenu.addAction( QgsApplication::getThemeIcon( "/mActionDuplicateLayer.svg" ), tr( "&Duplicate" ), QgisApp::instance(), SLOT( duplicateLayers() ) );
// set layer crs
theMenu.addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ), tr( "&Set Layer CRS" ), QgisApp::instance(), SLOT( setLayerCRS() ) );
// assign layer crs to project
theMenu.addAction( QgsApplication::getThemeIcon( "/mActionSetProjectCRS.png" ), tr( "Set &Project CRS from Layer" ), QgisApp::instance(), SLOT( setProjectCRSFromLayer() ) );
theMenu.addSeparator();
if ( lyr->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( lyr );
// attribute table
theMenu.addAction( QgsApplication::getThemeIcon( "/mActionOpenTable.png" ), tr( "&Open Attribute Table" ),
QgisApp::instance(), SLOT( attributeTable() ) );
// allow editing
int cap = vlayer->dataProvider()->capabilities();
if ( cap & QgsVectorDataProvider::EditingCapabilities )
{
if ( toggleEditingAction )
{
theMenu.addAction( toggleEditingAction );
toggleEditingAction->setChecked( vlayer->isEditable() );
}
if ( saveLayerEditsAction && vlayer->isModified() )
{
theMenu.addAction( saveLayerEditsAction );
}
}
if ( allEditsAction->isEnabled() )
{
theMenu.addAction( allEditsAction );
}
// disable duplication of memory layers
if ( vlayer->storageType() == "Memory storage" && legend()->selectedLayers().count() == 1 )
{
duplicateLayersAction->setEnabled( false );
}
// save as vector file
theMenu.addAction( tr( "Save As..." ), QgisApp::instance(), SLOT( saveAsFile() ) );
// save selection as vector file
QAction* saveSelectionAsAction = theMenu.addAction( tr( "Save Selection As..." ), QgisApp::instance(), SLOT( saveSelectionAsVectorFile() ) );
if ( vlayer->selectedFeatureCount() == 0 )
{
saveSelectionAsAction->setEnabled( false );
}
if ( !vlayer->isEditable() && vlayer->dataProvider()->supportsSubsetString() && vlayer->vectorJoins().isEmpty() )
theMenu.addAction( tr( "&Filter..." ), QgisApp::instance(), SLOT( layerSubsetString() ) );
//show number of features in legend if requested
QAction* showNFeaturesAction = new QAction( tr( "Show Feature Count" ), &theMenu );
showNFeaturesAction->setCheckable( true );
showNFeaturesAction->setChecked( mShowFeatureCount );
QObject::connect( showNFeaturesAction, SIGNAL( toggled( bool ) ), this, SLOT( setShowFeatureCount( bool ) ) );
theMenu.addAction( showNFeaturesAction );
theMenu.addSeparator();
}
QMenu* QgsAppLayerTreeViewMenuProvider::createContextMenu()
{
QMenu* menu = new QMenu;
QgsLayerTreeViewDefaultActions* actions = mView->defaultActions();
QModelIndex idx = mView->currentIndex();
if ( !idx.isValid() )
{
// global menu
menu->addAction( actions->actionAddGroup( menu ) );
// TODO: expand all, collapse all
// TODO: update drawing order
}
else if ( QgsLayerTreeNode* node = mView->layerTreeModel()->index2node( idx ) )
{
// layer or group selected
if ( QgsLayerTree::isGroup( node ) )
{
menu->addAction( actions->actionZoomToGroup( mCanvas, menu ) );
menu->addAction( actions->actionRemoveGroupOrLayer( menu ) );
menu->addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ),
tr( "&Set Group CRS" ), QgisApp::instance(), SLOT( legendGroupSetCRS() ) );
menu->addAction( actions->actionRenameGroupOrLayer( menu ) );
if ( mView->selectedNodes( true ).count() >= 2 )
menu->addAction( actions->actionGroupSelected( menu ) );
menu->addAction( actions->actionAddGroup( menu ) );
}
else if ( QgsLayerTree::isLayer( node ) )
{
QgsMapLayer* layer = QgsLayerTree::toLayer( node )->layer();
menu->addAction( actions->actionZoomToLayer( mCanvas, menu ) );
menu->addAction( actions->actionShowInOverview( menu ) );
if ( layer && layer->type() == QgsMapLayer::RasterLayer )
{
menu->addAction( tr( "&Zoom to Best Scale (100%)" ), QgisApp::instance(), SLOT( legendLayerZoomNative() ) );
QgsRasterLayer* rasterLayer = qobject_cast<QgsRasterLayer *>( layer );
if ( rasterLayer && rasterLayer->rasterType() != QgsRasterLayer::Palette )
menu->addAction( tr( "&Stretch Using Current Extent" ), QgisApp::instance(), SLOT( legendLayerStretchUsingCurrentExtent() ) );
}
menu->addAction( actions->actionRemoveGroupOrLayer( menu ) );
// duplicate layer
QAction* duplicateLayersAction = menu->addAction( QgsApplication::getThemeIcon( "/mActionDuplicateLayer.svg" ), tr( "&Duplicate" ), QgisApp::instance(), SLOT( duplicateLayers() ) );
// set layer scale visibility
menu->addAction( tr( "&Set Layer Scale Visibility" ), QgisApp::instance(), SLOT( setLayerScaleVisibility() ) );
// set layer crs
menu->addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ), tr( "&Set Layer CRS" ), QgisApp::instance(), SLOT( setLayerCRS() ) );
// assign layer crs to project
menu->addAction( QgsApplication::getThemeIcon( "/mActionSetProjectCRS.png" ), tr( "Set &Project CRS from Layer" ), QgisApp::instance(), SLOT( setProjectCRSFromLayer() ) );
menu->addSeparator();
if ( layer && layer->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( layer );
QAction *toggleEditingAction = QgisApp::instance()->actionToggleEditing();
QAction *saveLayerEditsAction = QgisApp::instance()->actionSaveActiveLayerEdits();
QAction *allEditsAction = QgisApp::instance()->actionAllEdits();
// attribute table
menu->addAction( QgsApplication::getThemeIcon( "/mActionOpenTable.png" ), tr( "&Open Attribute Table" ),
QgisApp::instance(), SLOT( attributeTable() ) );
// allow editing
int cap = vlayer->dataProvider()->capabilities();
if ( cap & QgsVectorDataProvider::EditingCapabilities )
{
if ( toggleEditingAction )
{
menu->addAction( toggleEditingAction );
toggleEditingAction->setChecked( vlayer->isEditable() );
}
if ( saveLayerEditsAction && vlayer->isModified() )
{
menu->addAction( saveLayerEditsAction );
}
}
if ( allEditsAction->isEnabled() )
menu->addAction( allEditsAction );
// disable duplication of memory layers
if ( vlayer->storageType() == "Memory storage" && mView->selectedLayerNodes().count() == 1 )
duplicateLayersAction->setEnabled( false );
// save as vector file
menu->addAction( tr( "Save As..." ), QgisApp::instance(), SLOT( saveAsFile() ) );
menu->addAction( tr( "Save As Layer Definition File..." ), QgisApp::instance(), SLOT( saveAsLayerDefinition() ) );
if ( !vlayer->isEditable() && vlayer->dataProvider()->supportsSubsetString() && vlayer->vectorJoins().isEmpty() )
menu->addAction( tr( "&Filter..." ), QgisApp::instance(), SLOT( layerSubsetString() ) );
menu->addAction( actions->actionShowFeatureCount( menu ) );
menu->addSeparator();
}
else if ( layer && layer->type() == QgsMapLayer::RasterLayer )
{
menu->addAction( tr( "Save As..." ), QgisApp::instance(), SLOT( saveAsRasterFile() ) );
menu->addAction( tr( "Save As Layer Definition File..." ), QgisApp::instance(), SLOT( saveAsLayerDefinition() ) );
}
else if ( layer && layer->type() == QgsMapLayer::PluginLayer && mView->selectedLayerNodes().count() == 1 )
{
// disable duplication of plugin layers
duplicateLayersAction->setEnabled( false );
}
// TODO: custom actions
if ( layer && QgsProject::instance()->layerIsEmbedded( layer->id() ).isEmpty() )
menu->addAction( tr( "&Properties" ), QgisApp::instance(), SLOT( layerProperties() ) );
if ( node->parent() != mView->layerTreeModel()->rootGroup() )
menu->addAction( actions->actionMakeTopLevel( menu ) );
menu->addAction( actions->actionRenameGroupOrLayer( menu ) );
if ( mView->selectedNodes( true ).count() >= 2 )
menu->addAction( actions->actionGroupSelected( menu ) );
if ( mView->selectedLayerNodes().count() == 1 )
{
QgisApp* app = QgisApp::instance();
menu->addAction( tr( "Copy Style" ), app, SLOT( copyStyle() ) );
if ( app->clipboard()->hasFormat( QGSCLIPBOARD_STYLE_MIME ) )
{
menu->addAction( tr( "Paste Style" ), app, SLOT( pasteStyle() ) );
}
}
}
}
else
{
// symbology item?
}
return menu;
}
