C++ QgsVectorLayer::storageType方法代码示例

本文整理汇总了C++中QgsVectorLayer::storageType方法的典型用法代码示例。如果您正苦于以下问题：C++ QgsVectorLayer::storageType方法的具体用法？C++ QgsVectorLayer::storageType怎么用？C++ QgsVectorLayer::storageType使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QgsVectorLayer的用法示例。

在下文中一共展示了QgsVectorLayer::storageType方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: createContextMenu

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 ) );

    // TODO: expand all, collapse all
    // 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( actions->actionRemoveGroupOrLayer( menu ) );

      menu->addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ),
                       tr( "&Set Group CRS" ), QgisApp::instance(), SLOT( legendGroupSetCRS() ) );

      menu->addAction( actions->actionRenameGroupOrLayer( menu ) );

      if ( mView->selectedNodes( true ).count() >= 2 )
        menu->addAction( actions->actionGroupSelected( menu ) );

      menu->addAction( actions->actionAddGroup( menu ) );
    }
    else if ( QgsLayerTree::isLayer( node ) )
    {
      QgsMapLayer* layer = QgsLayerTree::toLayer( node )->layer();

      menu->addAction( actions->actionZoomToLayer( mCanvas, menu ) );
      menu->addAction( actions->actionShowInOverview( menu ) );

      if ( layer && layer->type() == QgsMapLayer::RasterLayer )
      {
        menu->addAction( tr( "&Zoom to Best Scale (100%)" ), QgisApp::instance(), SLOT( legendLayerZoomNative() ) );

        QgsRasterLayer* rasterLayer =  qobject_cast<QgsRasterLayer *>( layer );
        if ( rasterLayer && rasterLayer->rasterType() != QgsRasterLayer::Palette )
          menu->addAction( tr( "&Stretch Using Current Extent" ), QgisApp::instance(), SLOT( legendLayerStretchUsingCurrentExtent() ) );
      }

      menu->addAction( actions->actionRemoveGroupOrLayer( menu ) );

      // duplicate layer
      QAction* duplicateLayersAction = menu->addAction( QgsApplication::getThemeIcon( "/mActionDuplicateLayer.svg" ), tr( "&Duplicate" ), QgisApp::instance(), SLOT( duplicateLayers() ) );

      // set layer scale visibility
      menu->addAction( tr( "&Set Layer Scale Visibility" ), QgisApp::instance(), SLOT( setLayerScaleVisibility() ) );

      // 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() ) );

      menu->addSeparator();

      if ( layer && layer->type() == QgsMapLayer::VectorLayer )
      {
        QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( layer );

        QAction *toggleEditingAction = QgisApp::instance()->actionToggleEditing();
        QAction *saveLayerEditsAction = QgisApp::instance()->actionSaveActiveLayerEdits();
        QAction *allEditsAction = QgisApp::instance()->actionAllEdits();

        // attribute table
        menu->addAction( QgsApplication::getThemeIcon( "/mActionOpenTable.png" ), tr( "&Open Attribute Table" ),
                         QgisApp::instance(), SLOT( attributeTable() ) );

        // allow editing
        int cap = vlayer->dataProvider()->capabilities();
        if ( cap & QgsVectorDataProvider::EditingCapabilities )
        {
          if ( toggleEditingAction )
          {
            menu->addAction( toggleEditingAction );
            toggleEditingAction->setChecked( vlayer->isEditable() );
          }
          if ( saveLayerEditsAction && vlayer->isModified() )
          {
            menu->addAction( saveLayerEditsAction );
          }
        }

        if ( allEditsAction->isEnabled() )
          menu->addAction( allEditsAction );

        // disable duplication of memory layers
        if ( vlayer->storageType() == "Memory storage" && mView->selectedLayerNodes().count() == 1 )
          duplicateLayersAction->setEnabled( false );

        // save as vector file
//.........这里部分代码省略.........

开发者ID:Jokenbol，项目名称:QGIS，代码行数:101，代码来源:qgsapplayertreeviewmenuprovider.cpp

示例2: addToPopupMenu

void QgsLegendLayer::addToPopupMenu( QMenu& theMenu )
{
  QgsMapLayer *lyr = layer();
  QAction *toggleEditingAction = QgisApp::instance()->actionToggleEditing();
  QAction *saveLayerEditsAction = QgisApp::instance()->actionSaveActiveLayerEdits();
  QAction *allEditsAction = QgisApp::instance()->actionAllEdits();

  // zoom to layer extent
  theMenu.addAction( QgsApplication::getThemeIcon( "/mActionZoomToLayer.svg" ),
                     tr( "&Zoom to Layer Extent" ), legend(), SLOT( legendLayerZoom() ) );
  if ( lyr->type() == QgsMapLayer::RasterLayer )
  {
    theMenu.addAction( tr( "&Zoom to Best Scale (100%)" ), legend(), SLOT( legendLayerZoomNative() ) );

    QgsRasterLayer *rasterLayer =  qobject_cast<QgsRasterLayer *>( lyr );
    if ( rasterLayer && rasterLayer->rasterType() != QgsRasterLayer::Palette )
    {
      theMenu.addAction( tr( "&Stretch Using Current Extent" ), legend(), SLOT( legendLayerStretchUsingCurrentExtent() ) );
    }
  }

  // show in overview
  QAction* showInOverviewAction = theMenu.addAction( tr( "&Show in Overview" ), this, SLOT( showInOverview() ) );
  showInOverviewAction->setCheckable( true );
  showInOverviewAction->blockSignals( true );
  showInOverviewAction->setChecked( mLyr.isInOverview() );
  showInOverviewAction->blockSignals( false );

  // remove from canvas
  theMenu.addAction( QgsApplication::getThemeIcon( "/mActionRemoveLayer.svg" ), tr( "&Remove" ), QgisApp::instance(), SLOT( removeLayer() ) );

  // duplicate layer
  QAction* duplicateLayersAction = theMenu.addAction( QgsApplication::getThemeIcon( "/mActionDuplicateLayer.svg" ), tr( "&Duplicate" ), QgisApp::instance(), SLOT( duplicateLayers() ) );

  // set layer crs
  theMenu.addAction( QgsApplication::getThemeIcon( "/mActionSetCRS.png" ), tr( "&Set Layer CRS" ), QgisApp::instance(), SLOT( setLayerCRS() ) );

  // assign layer crs to project
  theMenu.addAction( QgsApplication::getThemeIcon( "/mActionSetProjectCRS.png" ), tr( "Set &Project CRS from Layer" ), QgisApp::instance(), SLOT( setProjectCRSFromLayer() ) );

  theMenu.addSeparator();

  if ( lyr->type() == QgsMapLayer::VectorLayer )
  {
    QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( lyr );

    // attribute table
    theMenu.addAction( QgsApplication::getThemeIcon( "/mActionOpenTable.png" ), tr( "&Open Attribute Table" ),
                       QgisApp::instance(), SLOT( attributeTable() ) );

    // allow editing
    int cap = vlayer->dataProvider()->capabilities();
    if ( cap & QgsVectorDataProvider::EditingCapabilities )
    {
      if ( toggleEditingAction )
      {
        theMenu.addAction( toggleEditingAction );
        toggleEditingAction->setChecked( vlayer->isEditable() );
      }
      if ( saveLayerEditsAction && vlayer->isModified() )
      {
        theMenu.addAction( saveLayerEditsAction );
      }
    }

    if ( allEditsAction->isEnabled() )
    {
      theMenu.addAction( allEditsAction );
    }

    // disable duplication of memory layers
    if ( vlayer->storageType() == "Memory storage" && legend()->selectedLayers().count() == 1 )
    {
      duplicateLayersAction->setEnabled( false );
    }

    // save as vector file
    theMenu.addAction( tr( "Save As..." ), QgisApp::instance(), SLOT( saveAsFile() ) );

    // save selection as vector file
    QAction* saveSelectionAsAction = theMenu.addAction( tr( "Save Selection As..." ), QgisApp::instance(), SLOT( saveSelectionAsVectorFile() ) );
    if ( vlayer->selectedFeatureCount() == 0 )
    {
      saveSelectionAsAction->setEnabled( false );
    }

    if ( !vlayer->isEditable() && vlayer->dataProvider()->supportsSubsetString() && vlayer->vectorJoins().isEmpty() )
      theMenu.addAction( tr( "&Filter..." ), QgisApp::instance(), SLOT( layerSubsetString() ) );

    //show number of features in legend if requested
    QAction* showNFeaturesAction = new QAction( tr( "Show Feature Count" ), &theMenu );
    showNFeaturesAction->setCheckable( true );
    showNFeaturesAction->setChecked( mShowFeatureCount );
    QObject::connect( showNFeaturesAction, SIGNAL( toggled( bool ) ), this, SLOT( setShowFeatureCount( bool ) ) );
    theMenu.addAction( showNFeaturesAction );
    theMenu.addSeparator();
  }

开发者ID:LukasGalliker，项目名称:QGIS，代码行数:97，代码来源:qgslegendlayer.cpp

示例3: if


//.........这里部分代码省略.........

      menu->addSeparator();

      if ( vlayer )
      {
        QAction *toggleEditingAction = QgisApp::instance()->actionToggleEditing();
        QAction *saveLayerEditsAction = QgisApp::instance()->actionSaveActiveLayerEdits();
        QAction *allEditsAction = QgisApp::instance()->actionAllEdits();

        // attribute table
        menu->addAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionOpenTable.svg" ) ), tr( "&Open Attribute Table" ),
                         QgisApp::instance(), SLOT( attributeTable() ) );

        // allow editing
        int cap = vlayer->dataProvider()->capabilities();
        if ( cap & QgsVectorDataProvider::EditingCapabilities )
        {
          if ( toggleEditingAction )
          {
            menu->addAction( toggleEditingAction );
            toggleEditingAction->setChecked( vlayer->isEditable() );
            toggleEditingAction->setEnabled( true );
          }
          if ( saveLayerEditsAction && vlayer->isModified() )
          {
            menu->addAction( saveLayerEditsAction );
          }
        }

        if ( allEditsAction->isEnabled() )
          menu->addAction( allEditsAction );

        // disable duplication of memory layers
        if ( vlayer->storageType() == QLatin1String( "Memory storage" ) && mView->selectedLayerNodes().count() == 1 )
          duplicateLayersAction->setEnabled( false );

        if ( vlayer->dataProvider()->supportsSubsetString() )
        {
          QAction *action = menu->addAction( tr( "&Filter…" ), QgisApp::instance(), SLOT( layerSubsetString() ) );
          action->setEnabled( !vlayer->isEditable() );
        }
      }

      menu->addSeparator();

      if ( layer && 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() ) );

        QMenu *menuSetCRS = new QMenu( tr( "Set CRS" ), menu );
        // set layer crs
        QAction *actionSetLayerCrs = new QAction( tr( "Set Layer CRS…" ), menuSetCRS );
        connect( actionSetLayerCrs, &QAction::triggered, QgisApp::instance(), &QgisApp::setLayerCrs );
        menuSetCRS->addAction( actionSetLayerCrs );
        // assign layer crs to project
        QAction *actionSetProjectCrs = new QAction( tr( "Set &Project CRS from Layer" ), menuSetCRS );
        connect( actionSetProjectCrs, &QAction::triggered, QgisApp::instance(), &QgisApp::setProjectCrsFromLayer );
        menuSetCRS->addAction( actionSetProjectCrs );

        menu->addMenu( menuSetCRS );
      }

开发者ID:lyhkop，项目名称:QGIS，代码行数:66，代码来源:qgsapplayertreeviewmenuprovider.cpp

注：本文中的QgsVectorLayer::storageType方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。