Exemplo n.º 1
0
int QgsLegendModel::addVectorLayerItemsV2( QStandardItem* layerItem, QgsVectorLayer* vlayer )
{
  if ( !layerItem || !vlayer )
  {
    return 1;
  }

  QgsFeatureRendererV2* renderer = vlayer->rendererV2();
  if ( !renderer )
  {
    return 2;
  }

  QgsLegendSymbolList lst = renderer->legendSymbolItems();
  QgsLegendSymbolList::const_iterator symbolIt = lst.constBegin();
  for ( ; symbolIt != lst.constEnd(); ++symbolIt )
  {
    QgsComposerSymbolV2Item* currentSymbolItem = new QgsComposerSymbolV2Item( symbolIt->first );
    currentSymbolItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
    if ( symbolIt->second )
    {
      if ( mHasTopLevelWindow ) //only use QIcon / QPixmap if we have a running x-server
      {
        currentSymbolItem->setIcon( QgsSymbolLayerV2Utils::symbolPreviewIcon( symbolIt->second, QSize( 30, 30 ) ) );
      }
      currentSymbolItem->setSymbolV2( symbolIt->second->clone() );
    }
    layerItem->setChild( layerItem->rowCount(), 0, currentSymbolItem );
  }

  return 0;
}
Exemplo n.º 2
0
void QgsLegendModel::updateSymbolV2ItemText( QStandardItem* symbolItem )
{
  QgsComposerSymbolV2Item* sv2Item = dynamic_cast<QgsComposerSymbolV2Item*>( symbolItem );
  if ( !sv2Item ) return;

  QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( sv2Item->parent() );
  if ( !lItem ) return;

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

  QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( mapLayer );
  if ( !vLayer ) return;

  QgsFeatureRendererV2* renderer = vLayer->rendererV2();
  if ( !renderer ) return;

  if ( lItem->showFeatureCount() ) vLayer->countSymbolFeatures();

  QgsLegendSymbolList symbolList = renderer->legendSymbolItems();

  QPair<QString, QgsSymbolV2*> symbol = symbolList.value( symbolItem->row() );

  QString label = sv2Item->userText().isEmpty() ? symbol.first : sv2Item->userText();

  if ( renderer->type() == "singleSymbol" )
  {
    if ( !sv2Item->userText().isEmpty() )
    {
      label = sv2Item->userText();
    }
    else if ( !lItem->userText().isEmpty() )
    {
      label = lItem->userText();
    }
    else if ( !vLayer->title().isEmpty() )
    {
      label = vLayer->title();
    }
    else
    {
      label = vLayer->name();
    }
  }

  if ( lItem->showFeatureCount() )
  {
    // Add counts to multi symbols layers only or labeled single symbols,
    // so that single symbol layers are still drawn on single line
    if ( symbolList.size() > 1 || !label.isEmpty() )
    {
      label += QString( " [%1]" ).arg( vLayer->featureCount( symbol.second ) );
    }
  }
  symbolItem->setText( label );
}
Exemplo n.º 3
0
int QgsLegendModel::addVectorLayerItemsV2( QStandardItem* layerItem, QgsVectorLayer* vlayer )
{
    QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( layerItem );

    if ( !layerItem || !lItem || !vlayer )
    {
        return 1;
    }

    QgsFeatureRendererV2* renderer = vlayer->rendererV2();
    if ( !renderer )
    {
        return 2;
    }

    if ( lItem->showFeatureCount() )
    {
        if ( !vlayer->countSymbolFeatures() )
        {
            QgsDebugMsg( "Cannot get feature counts" );
        }
    }

    QgsLegendSymbolList lst = renderer->legendSymbolItems();
    QgsLegendSymbolList::const_iterator symbolIt = lst.constBegin();
    for ( ; symbolIt != lst.constEnd(); ++symbolIt )
    {
        QString label = symbolIt->first;
        if ( lItem->showFeatureCount() )
        {
            // Add counts to multi symbols layers only or labeled single symbols,
            // so that single symbol layers are still drawn on single line
            if ( lst.size() > 1 || !label.isEmpty() )
            {
                label += QString( " [%1]" ).arg( vlayer->featureCount( symbolIt->second ) );
            }
        }
        QgsComposerSymbolV2Item* currentSymbolItem = new QgsComposerSymbolV2Item( label );
        currentSymbolItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
        if ( symbolIt->second )
        {
            if ( mHasTopLevelWindow ) //only use QIcon / QPixmap if we have a running x-server
            {
                currentSymbolItem->setIcon( QgsSymbolLayerV2Utils::symbolPreviewIcon( symbolIt->second, QSize( 30, 30 ) ) );
            }
            currentSymbolItem->setSymbolV2( symbolIt->second->clone() );
        }
        layerItem->setChild( layerItem->rowCount(), 0, currentSymbolItem );
    }

    return 0;
}
Exemplo n.º 4
0
void QgsComposerLayerItem::setDefaultStyle( double scaleDenominator, const QString& rule )
{
  // set default style according to number of symbols
  QgsVectorLayer* vLayer = qobject_cast<QgsVectorLayer*>( QgsMapLayerRegistry::instance()->mapLayer( layerID() ) );
  if ( vLayer )
  {
    QgsFeatureRendererV2* renderer = vLayer->rendererV2();
    if ( renderer )
    {
      QPair<QString, QgsSymbolV2*> symbolItem = renderer->legendSymbolItems( scaleDenominator, rule ).value( 0 );
      if ( renderer->legendSymbolItems( scaleDenominator, rule ).size() > 1 || !symbolItem.first.isEmpty() )
      {
        setStyle( QgsComposerLegendStyle::Subgroup );
      }
      else
      {
        // Hide title by default for single symbol
        setStyle( QgsComposerLegendStyle::Hidden );
      }
    }
  }
}
Exemplo n.º 5
0
int QgsLegendModel::addVectorLayerItemsV2( QStandardItem* layerItem, QgsVectorLayer* vlayer, double scaleDenominator )
{
  QgsComposerLayerItem* lItem = dynamic_cast<QgsComposerLayerItem*>( layerItem );

  if ( !layerItem || !lItem || !vlayer )
  {
    return 1;
  }

  QgsFeatureRendererV2* renderer = vlayer->rendererV2();
  if ( !renderer )
  {
    return 2;
  }

  if ( lItem->showFeatureCount() )
  {
    if ( !vlayer->countSymbolFeatures() )
    {
      QgsDebugMsg( "Cannot get feature counts" );
    }
  }

  QgsLegendSymbolList lst = renderer->legendSymbolItems( scaleDenominator );
  QgsLegendSymbolList::const_iterator symbolIt = lst.constBegin();
  int row = 0;
  for ( ; symbolIt != lst.constEnd(); ++symbolIt )
  {
    if ( scaleDenominator == -1 )
    {
      QgsComposerSymbolV2Item* currentSymbolItem = new QgsComposerSymbolV2Item( "" );

      // Get userText from old item if exists
      QgsComposerSymbolV2Item* oldSymbolItem = dynamic_cast<QgsComposerSymbolV2Item*>( layerItem->child( row, 0 ) );
      if ( oldSymbolItem )
      {
        currentSymbolItem->setUserText( oldSymbolItem->userText() );
      }

      currentSymbolItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
      if ( symbolIt->second )
      {
        if ( mHasTopLevelWindow ) //only use QIcon / QPixmap if we have a running x-server
        {
          currentSymbolItem->setIcon( QgsSymbolLayerV2Utils::symbolPreviewIcon( symbolIt->second, QSize( 30, 30 ) ) );
        }
        currentSymbolItem->setSymbolV2( symbolIt->second->clone() );
      }
      layerItem->setChild( row, 0, currentSymbolItem );

      // updateSymbolV2ItemText needs layer set
      updateSymbolV2ItemText( currentSymbolItem );

      row++;
    }
    else
    {
      QgsComposerSymbolV2Item* currentSymbolItem = new QgsComposerSymbolV2Item( "" );
      currentSymbolItem->setIcon( QgsSymbolLayerV2Utils::symbolPreviewIcon( symbolIt->second, QSize( 30, 30 ) ) );
      currentSymbolItem->setSymbolV2( symbolIt->second );
      layerItem->setChild( 0, 0, currentSymbolItem );
      currentSymbolItem->setText( symbolIt->first );
    }
  }

  if ( scaleDenominator == -1 )
  {
    // Delete following old items (if current number of items decreased)
    for ( int i = layerItem->rowCount() - 1; i >= row; --i )
    {
      layerItem->removeRow( i );
    }
  }

  return 0;
}