Пример #1
0
void QgsLegendModel::updateLayer( QStandardItem* layerItem )
{
  QgsDebugMsg( "Entered." );
  QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( layerItem );
  if ( lItem )
  {
    QgsMapLayer* mapLayer = QgsMapLayerRegistry::instance()->mapLayer( lItem->layerID() );
    if ( mapLayer )
    {
      //delete all the entries under layer item
      int currentRowCount = lItem->rowCount();
      for ( int i = currentRowCount - 1; i >= 0; --i )
      {
        lItem->removeRow( i );
      }

      QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );

      //set layer name as item text
      QString label = mapLayer->name();
      if ( vLayer && lItem->showFeatureCount() )
      {
        label += QString( " [%1]" ).arg( vLayer->featureCount() );
      }
      layerItem->setText( label );

      if ( vLayer )
      {
        if ( vLayer->isUsingRendererV2() )
        {
          addVectorLayerItemsV2( lItem, vLayer );
        }
        else
        {
          addVectorLayerItems( lItem, vLayer );
        }
      }

      QgsRasterLayer* rLayer = qobject_cast<QgsRasterLayer*>( mapLayer );
      if ( rLayer )
      {
        addRasterLayerItems( lItem, rLayer );
      }
    }
  }
}
Пример #2
0
void QgsLegendModel::addLayer( QgsMapLayer* theMapLayer )
{
  if ( !theMapLayer )
  {
    return;
  }

  QgsComposerLayerItem* layerItem = new QgsComposerLayerItem( theMapLayer->name() );
  layerItem->setLayerID( theMapLayer->id() );
  layerItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );

  invisibleRootItem()->setChild( invisibleRootItem()->rowCount(), layerItem );

  switch ( theMapLayer->type() )
  {
    case QgsMapLayer::VectorLayer:
    {
      QgsVectorLayer* vl = dynamic_cast<QgsVectorLayer*>( theMapLayer );
      if ( vl )
      {
        if ( vl->isUsingRendererV2() )
        {
          addVectorLayerItemsV2( layerItem, vl );
        }
        else
        {
          addVectorLayerItems( layerItem, vl );
        }
      }
      break;
    }
    case QgsMapLayer::RasterLayer:
      addRasterLayerItems( layerItem, theMapLayer );
      break;
    default:
      break;
  }
  emit layersChanged();
}
Пример #3
0
void QgsLegendLayer::refreshSymbology( const QString& key, double widthScale )
{
  QgsMapLayer* theMapLayer = QgsMapLayerRegistry::instance()->mapLayer( key );
  if ( !theMapLayer )
  {
    return;
  }

  if ( theMapLayer->type() == QgsMapLayer::VectorLayer ) // VECTOR
  {
    QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( theMapLayer );
    if ( vlayer->isUsingRendererV2() )
      vectorLayerSymbologyV2( vlayer );
    else
      vectorLayerSymbology( vlayer, widthScale ); // get and change symbology
  }
  else if ( theMapLayer->type() == QgsMapLayer::RasterLayer ) // RASTER
  {
    QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( theMapLayer );
    rasterLayerSymbology( rlayer ); // get and change symbology
  }

  updateIcon();
}