void QgsFillSymbolV2::renderPolygon( const QPolygonF& points, QList<QPolygonF>* rings, const QgsFeature* f, QgsRenderContext& context, int layer, bool selected ) { QgsSymbolV2RenderContext symbolContext( context, outputUnit(), mAlpha, selected, mRenderHints, f, 0, mapUnitScale() ); if ( layer != -1 ) { if ( layer >= 0 && layer < mLayers.count() ) { QgsSymbolV2::SymbolType layertype = mLayers.at( layer )->type(); if ( layertype == QgsSymbolV2::Fill ) (( QgsFillSymbolLayerV2* ) mLayers[layer] )->renderPolygon( points, rings, symbolContext ); else if ( layertype == QgsSymbolV2::Line ) (( QgsLineSymbolLayerV2* ) mLayers[layer] )->renderPolygonOutline( points, rings, symbolContext ); } return; } for ( QgsSymbolLayerV2List::iterator it = mLayers.begin(); it != mLayers.end(); ++it ) { QgsSymbolV2::SymbolType layertype = ( *it )->type(); if ( layertype == QgsSymbolV2::Fill ) { QgsFillSymbolLayerV2* layer = ( QgsFillSymbolLayerV2* ) * it; layer->renderPolygon( points, rings, symbolContext ); } else if ( layertype == QgsSymbolV2::Line ) { QgsLineSymbolLayerV2* layer = ( QgsLineSymbolLayerV2* ) * it; layer->renderPolygonOutline( points, rings, symbolContext ); } } }
void QgsSymbolV2::drawPreviewIcon( QPainter* painter, QSize size ) { QgsRenderContext context = QgsSymbolLayerV2Utils::createRenderContext( painter ); QgsSymbolV2RenderContext symbolContext( context, outputUnit(), mAlpha, false, mRenderHints ); for ( QgsSymbolLayerV2List::iterator it = mLayers.begin(); it != mLayers.end(); ++it ) { if ( mType == Fill && ( *it )->type() == Line ) { // line symbol layer would normally draw just a line // so we override this case to force it to draw a polygon outline QgsLineSymbolLayerV2* lsl = ( QgsLineSymbolLayerV2* ) * it; // from QgsFillSymbolLayerV2::drawPreviewIcon() QPolygonF poly = QRectF( QPointF( 0, 0 ), QPointF( size.width() - 1, size.height() - 1 ) ); lsl->startRender( symbolContext ); lsl->renderPolygonOutline( poly, NULL, symbolContext ); lsl->stopRender( symbolContext ); } else ( *it )->drawPreviewIcon( symbolContext, size ); } }