Exemplos de QgsComposerRasterSymbolItem::parent em C++ (Cpp)

Exemplo n.º 1

Arquivo: qgslegendmodel.cpp Projeto: ChowZenki/QGIS

void QgsLegendModel::updateRasterSymbolItemText( QStandardItem* symbolItem )
{
  QgsComposerRasterSymbolItem* rItem = dynamic_cast<QgsComposerRasterSymbolItem*>( symbolItem );
  if ( !rItem ) return;

  QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( rItem->parent() );
  if ( !lItem ) return;

  QgsMapLayer* mapLayer = QgsMapLayerRegistry::instance()->mapLayer( lItem->layerID() );
  if ( !mapLayer ) return;

  QgsRasterLayer* rLayer = qobject_cast<QgsRasterLayer*>( mapLayer );
  if ( !rLayer ) return;

  QPair< QString, QColor> symbol = rLayer->legendSymbologyItems().value( symbolItem->row() );

  QString label = rItem->userText().isEmpty() ? symbol.first : rItem->userText();

  symbolItem->setText( label );
}