QgsFeatureRendererV2* QgsSingleSymbolRendererV2::create( QDomElement& element )
{
QDomElement symbolsElem = element.firstChildElement( "symbols" );
if ( symbolsElem.isNull() )
return NULL;
QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );
if ( !symbolMap.contains( "0" ) )
return NULL;
QgsSingleSymbolRendererV2* r = new QgsSingleSymbolRendererV2( symbolMap.take( "0" ) );
// delete symbols if there are any more
QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );
QDomElement rotationElem = element.firstChildElement( "rotation" );
if ( !rotationElem.isNull() )
r->setRotationField( rotationElem.attribute( "field" ) );
QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
if ( !sizeScaleElem.isNull() )
{
r->setSizeScaleField( sizeScaleElem.attribute( "field" ) );
r->setScaleMethod( QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ) );
}
// TODO: symbol levels
return r;
}
QgsSingleSymbolRendererV2* QgsSingleSymbolRendererV2::clone() const
{
QgsSingleSymbolRendererV2* r = new QgsSingleSymbolRendererV2( mSymbol->clone() );
r->setUsingSymbolLevels( usingSymbolLevels() );
r->setSizeScaleField( sizeScaleField() );
copyRendererData( r );
return r;
}
QgsFeatureRendererV2* QgsSingleSymbolRendererV2::clone()
{
QgsSingleSymbolRendererV2* r = new QgsSingleSymbolRendererV2( mSymbol->clone() );
r->setUsingSymbolLevels( usingSymbolLevels() );
r->setRotationField( rotationField() );
r->setSizeScaleField( sizeScaleField() );
return r;
}
void QgsVectorLayerRenderer::drawRendererV2Levels( QgsFeatureIterator& fit )
{
QHash< QgsSymbolV2*, QList<QgsFeature> > features; // key = symbol, value = array of features
QgsSingleSymbolRendererV2* selRenderer = nullptr;
if ( !mSelectedFeatureIds.isEmpty() )
{
selRenderer = new QgsSingleSymbolRendererV2( QgsSymbolV2::defaultSymbol( mGeometryType ) );
selRenderer->symbol()->setColor( mContext.selectionColor() );
selRenderer->setVertexMarkerAppearance( mVertexMarkerStyle, mVertexMarkerSize );
selRenderer->startRender( mContext, mFields );
}
QgsExpressionContextScope* symbolScope = QgsExpressionContextUtils::updateSymbolScope( nullptr );
mContext.expressionContext().appendScope( symbolScope );
// 1. fetch features
QgsFeature fet;
while ( fit.nextFeature( fet ) )
{
if ( !fet.constGeometry() )
continue; // skip features without geometry
if ( mContext.renderingStopped() )
{
qDebug( "rendering stop!" );
stopRendererV2( selRenderer );
mContext.expressionContext().popScope();
return;
}
mContext.expressionContext().setFeature( fet );
QgsSymbolV2* sym = mRendererV2->symbolForFeature( fet, mContext );
if ( !sym )
{
continue;
}
if ( !features.contains( sym ) )
{
features.insert( sym, QList<QgsFeature>() );
}
features[sym].append( fet );
if ( mCache )
{
// Cache this for the use of (e.g.) modifying the feature's uncommitted geometry.
mCache->cacheGeometry( fet.id(), *fet.constGeometry() );
}
if ( mContext.labelingEngine() )
{
mContext.expressionContext().setFeature( fet );
if ( mLabeling )
{
mContext.labelingEngine()->registerFeature( mLayerID, fet, mContext );
}
if ( mDiagrams )
{
mContext.labelingEngine()->registerDiagramFeature( mLayerID, fet, mContext );
}
}
// new labeling engine
if ( mContext.labelingEngineV2() )
{
QScopedPointer<QgsGeometry> obstacleGeometry;
QgsSymbolV2List symbols = mRendererV2->originalSymbolsForFeature( fet, mContext );
if ( !symbols.isEmpty() && fet.constGeometry()->type() == QGis::Point )
{
obstacleGeometry.reset( QgsVectorLayerLabelProvider::getPointObstacleGeometry( fet, mContext, symbols ) );
}
if ( !symbols.isEmpty() )
{
QgsExpressionContextUtils::updateSymbolScope( symbols.at( 0 ), symbolScope );
}
if ( mLabelProvider )
{
mLabelProvider->registerFeature( fet, mContext, obstacleGeometry.data() );
}
if ( mDiagramProvider )
{
mDiagramProvider->registerFeature( fet, mContext, obstacleGeometry.data() );
}
}
}
mContext.expressionContext().popScope();
// find out the order
QgsSymbolV2LevelOrder levels;
QgsSymbolV2List symbols = mRendererV2->symbols( mContext );
for ( int i = 0; i < symbols.count(); i++ )
{
QgsSymbolV2* sym = symbols[i];
for ( int j = 0; j < sym->symbolLayerCount(); j++ )
{
int level = sym->symbolLayer( j )->renderingPass();
if ( level < 0 || level >= 1000 ) // ignore invalid levels
continue;
QgsSymbolV2LevelItem item( sym, j );
while ( level >= levels.count() ) // append new empty levels
levels.append( QgsSymbolV2Level() );
levels[level].append( item );
}
}
// 2. draw features in correct order
for ( int l = 0; l < levels.count(); l++ )
{
QgsSymbolV2Level& level = levels[l];
for ( int i = 0; i < level.count(); i++ )
{
QgsSymbolV2LevelItem& item = level[i];
if ( !features.contains( item.symbol() ) )
{
QgsDebugMsg( "level item's symbol not found!" );
continue;
}
int layer = item.layer();
QList<QgsFeature>& lst = features[item.symbol()];
QList<QgsFeature>::iterator fit;
for ( fit = lst.begin(); fit != lst.end(); ++fit )
{
if ( mContext.renderingStopped() )
{
stopRendererV2( selRenderer );
return;
}
bool sel = mSelectedFeatureIds.contains( fit->id() );
// maybe vertex markers should be drawn only during the last pass...
bool drawMarker = ( mDrawVertexMarkers && mContext.drawEditingInformation() && ( !mVertexMarkerOnlyForSelection || sel ) );
mContext.expressionContext().setFeature( *fit );
try
{
mRendererV2->renderFeature( *fit, mContext, layer, sel, drawMarker );
}
catch ( const QgsCsException &cse )
{
Q_UNUSED( cse );
QgsDebugMsg( QString( "Failed to transform a point while drawing a feature with ID '%1'. Ignoring this feature. %2" )
.arg( fet.id() ).arg( cse.what() ) );
}
}
}
}
stopRendererV2( selRenderer );
}
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 ) );
menu->addAction( QgsApplication::getThemeIcon( "/mActionExpandTree.svg" ), tr( "&Expand All" ), mView, SLOT( expandAll() ) );
menu->addAction( QgsApplication::getThemeIcon( "/mActionCollapseTree.svg" ), tr( "&Collapse All" ), mView, SLOT( collapseAll() ) );
// 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( QgsApplication::getThemeIcon( "/mActionRemoveLayer.svg" ), tr( "&Remove" ), QgisApp::instance(), SLOT( removeLayer() ) );
menu->addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ),
tr( "&Set Group CRS" ), QgisApp::instance(), SLOT( legendGroupSetCRS() ) );
menu->addAction( actions->actionRenameGroupOrLayer( menu ) );
menu->addAction( tr( "&Set Group WMS data" ), QgisApp::instance(), SLOT( legendGroupSetWMSData() ) );
menu->addAction( actions->actionMutuallyExclusiveGroup( menu ) );
if ( mView->selectedNodes( true ).count() >= 2 )
menu->addAction( actions->actionGroupSelected( menu ) );
if ( QgisApp::instance()->clipboard()->hasFormat( QGSCLIPBOARD_STYLE_MIME ) )
{
menu->addAction( tr( "Paste Style" ), QgisApp::instance(), SLOT( applyStyleToGroup() ) );
}
menu->addAction( tr( "Save As Layer Definition File..." ), QgisApp::instance(), SLOT( saveAsLayerDefinition() ) );
menu->addAction( actions->actionAddGroup( menu ) );
}
else if ( QgsLayerTree::isLayer( node ) )
{
QgsMapLayer *layer = QgsLayerTree::toLayer( node )->layer();
QgsRasterLayer *rlayer = qobject_cast<QgsRasterLayer *>( layer );
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( layer );
menu->addAction( actions->actionZoomToLayer( mCanvas, menu ) );
menu->addAction( actions->actionShowInOverview( menu ) );
if ( rlayer )
{
menu->addAction( QgsApplication::getThemeIcon( "/mActionZoomActual.svg" ), tr( "&Zoom to Native Resolution (100%)" ), QgisApp::instance(), SLOT( legendLayerZoomNative() ) );
if ( rlayer->rasterType() != QgsRasterLayer::Palette )
menu->addAction( tr( "&Stretch Using Current Extent" ), QgisApp::instance(), SLOT( legendLayerStretchUsingCurrentExtent() ) );
}
menu->addAction( QgsApplication::getThemeIcon( "/mActionRemoveLayer.svg" ), tr( "&Remove" ), QgisApp::instance(), SLOT( removeLayer() ) );
// duplicate layer
QAction* duplicateLayersAction = menu->addAction( QgsApplication::getThemeIcon( "/mActionDuplicateLayer.svg" ), tr( "&Duplicate" ), QgisApp::instance(), SLOT( duplicateLayers() ) );
if ( layer->isSpatial() )
{
// set layer scale visibility
menu->addAction( tr( "&Set Layer Scale Visibility" ), QgisApp::instance(), SLOT( setLayerScaleVisibility() ) );
if ( !layer->isInScaleRange( mCanvas->scale() ) )
menu->addAction( tr( "Zoom to &Visible Scale" ), QgisApp::instance(), SLOT( zoomToLayerScale() ) );
// 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() ) );
}
// style-related actions
if ( layer && mView->selectedLayerNodes().count() == 1 )
{
QMenu *menuStyleManager = new QMenu( tr( "Styles" ), menu );
QgisApp *app = QgisApp::instance();
menuStyleManager->addAction( tr( "Copy Style" ), app, SLOT( copyStyle() ) );
if ( app->clipboard()->hasFormat( QGSCLIPBOARD_STYLE_MIME ) )
{
menuStyleManager->addAction( tr( "Paste Style" ), app, SLOT( pasteStyle() ) );
}
menuStyleManager->addSeparator();
QgsMapLayerStyleGuiUtils::instance()->addStyleManagerActions( menuStyleManager, layer );
if ( vlayer )
{
QgsSingleSymbolRendererV2* singleRenderer = dynamic_cast< QgsSingleSymbolRendererV2* >( vlayer->rendererV2() );
if ( singleRenderer && singleRenderer->symbol() )
{
//single symbol renderer, so add set color/edit symbol actions
menuStyleManager->addSeparator();
QgsColorWheel* colorWheel = new QgsColorWheel( menuStyleManager );
colorWheel->setColor( singleRenderer->symbol()->color() );
QgsColorWidgetAction* colorAction = new QgsColorWidgetAction( colorWheel, menuStyleManager, menuStyleManager );
colorAction->setDismissOnColorSelection( false );
connect( colorAction, SIGNAL( colorChanged( const QColor& ) ), this, SLOT( setVectorSymbolColor( const QColor& ) ) );
//store the layer id in action, so we can later retrieve the corresponding layer
colorAction->setProperty( "layerId", vlayer->id() );
menuStyleManager->addAction( colorAction );
//add recent colors action
QList<QgsRecentColorScheme *> recentSchemes;
QgsColorSchemeRegistry::instance()->schemes( recentSchemes );
if ( !recentSchemes.isEmpty() )
{
QgsColorSwatchGridAction* recentColorAction = new QgsColorSwatchGridAction( recentSchemes.at( 0 ), menuStyleManager, "symbology", menuStyleManager );
recentColorAction->setProperty( "layerId", vlayer->id() );
recentColorAction->setDismissOnColorSelection( false );
menuStyleManager->addAction( recentColorAction );
connect( recentColorAction, SIGNAL( colorChanged( const QColor& ) ), this, SLOT( setVectorSymbolColor( const QColor& ) ) );
}
menuStyleManager->addSeparator();
QAction* editSymbolAction = new QAction( tr( "Edit Symbol..." ), menuStyleManager );
//store the layer id in action, so we can later retrieve the corresponding layer
editSymbolAction->setProperty( "layerId", vlayer->id() );
connect( editSymbolAction, SIGNAL( triggered() ), this, SLOT( editVectorSymbol() ) );
menuStyleManager->addAction( editSymbolAction );
}
}
menu->addMenu( menuStyleManager );
}
