C++ (Cpp) removeLayers Examples

Example #1

File: qgsatlascomposition.cpp Project: 3liz/Quantum-GIS

QgsAtlasComposition::QgsAtlasComposition( QgsComposition* composition )
    : mComposition( composition )
    , mEnabled( false )
    , mHideCoverage( false )
    , mFilenamePattern( QStringLiteral( "'output_'||@atlas_featurenumber" ) )
    , mCoverageLayer( nullptr )
    , mSingleFile( false )
    , mSortFeatures( false )
    , mSortAscending( true )
    , mCurrentFeatureNo( 0 )
    , mFilterFeatures( false )
{

  //listen out for layer removal
  connect( QgsMapLayerRegistry::instance(), SIGNAL( layersWillBeRemoved( QStringList ) ), this, SLOT( removeLayers( QStringList ) ) );
}

Example #2

File: layertreesidebar.cpp Project: pasberth/PaintField

void LayerTreeSidebar::createForms()
{
	QVBoxLayout *mainLayout = new QVBoxLayout();
	mainLayout->setSpacing(0);
	mainLayout->setContentsMargins(0, 0, 0, 0);
	
	{
		auto view = new QTreeView();
		
		if (d->uiController)
			view->setItemDelegate(new LayerModelViewDelegate(d->uiController, this));
		
		view->setHeaderHidden(true);
		view->setSelectionMode(QAbstractItemView::ExtendedSelection);
		view->setDragDropMode(QAbstractItemView::DragDrop);
		view->setDefaultDropAction(Qt::MoveAction);
		view->setDropIndicatorShown(true);
		
		if (d->document)
		{
			view->setModel(d->document->layerScene()->itemModel());
			view->setSelectionModel(d->document->layerScene()->itemSelectionModel());
			connect(d->document->layerScene(), SIGNAL(thumbnailsUpdated(QPointSet)), view, SLOT(update()));
		}
		
		view->setContextMenuPolicy(Qt::CustomContextMenu);
		connect(view, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showViewContextMenu(QPoint)));
		view->installEventFilter(this);
		
		d->view = view;
		
		mainLayout->addWidget(view);
	}
	
	{
		auto lowerLayout = new QVBoxLayout();
		lowerLayout->setSpacing(6);
		lowerLayout->setContentsMargins(6,6,6,6);
		
		{
			auto editor = new LayerPropertyEditor(d->document ? d->document->layerScene() : 0);
			lowerLayout->addWidget(editor);
		}
		
		// buttons
		{
			auto layout = new QHBoxLayout();
			layout->setSpacing(0);
			
			auto addButton = new SimpleButton(":/icons/16x16/add.svg", QSize(16,16));
			addButton->setMargins(4, 0, 4, 0);
			auto removeButton = new SimpleButton(":/icons/16x16/subtract.svg", QSize(16,16));
			removeButton->setMargins(4, 0, 4, 0);
			auto miscButton = new SimpleButton(":/icons/16x16/menuDown.svg", QSize(16,16));
			miscButton->setMargins(4, 0, 4, 0);
			
			if (d->uiController)
			{
				auto addMenu = new QMenu(this);
				
				addMenu->addAction(d->uiController->action(LayerUIController::ActionNewRaster));
				addMenu->addAction(d->uiController->action(LayerUIController::ActionNewGroup));
				addMenu->addAction(d->uiController->action(LayerUIController::ActionImport));
				
				addButton->setMenu(addMenu);
				
				connect(removeButton, SIGNAL(pressed()), d->uiController, SLOT(removeLayers()));
				
				QMenu *miscMenu = new QMenu(this);
				miscMenu->addAction(d->uiController->action(LayerUIController::ActionMerge));
				
				miscButton->setMenu(miscMenu);
			}
			
			layout->addWidget(addButton);
			layout->addWidget(removeButton);
			layout->addWidget(miscButton);
			layout->addStretch(1);
			
			lowerLayout->addLayout(layout);
		}
		
		mainLayout->addLayout(lowerLayout);
	}
	
	setLayout(mainLayout);
}

Example #3

File: qgsmaplayermodel.cpp Project: ACorradini/QGIS

QgsMapLayerModel::QgsMapLayerModel( QObject *parent )
    : QAbstractItemModel( parent )
    , mLayersChecked( QMap<QString, Qt::CheckState>() )
    , mItemCheckable( false )
{
  connect( QgsMapLayerRegistry::instance(), SIGNAL( layersAdded( QList<QgsMapLayer*> ) ), this, SLOT( addLayers( QList<QgsMapLayer*> ) ) );
  connect( QgsMapLayerRegistry::instance(), SIGNAL( layersWillBeRemoved( QStringList ) ), this, SLOT( removeLayers( QStringList ) ) );
  addLayers( QgsMapLayerRegistry::instance()->mapLayers().values() );
}

Example #4

File: qgsatlascomposition.cpp Project: TengTeckHou/QGIS

QgsAtlasComposition::QgsAtlasComposition( QgsComposition* composition )
    : mComposition( composition )
    , mEnabled( false )
    , mHideCoverage( false )
    , mFilenamePattern( "'output_'||$feature" )
    , mCoverageLayer( 0 )
    , mSingleFile( false )
    , mSortFeatures( false )
    , mSortAscending( true )
    , mCurrentFeatureNo( 0 )
    , mFilterFeatures( false )
{

  // declare special columns with a default value
  QgsExpression::setSpecialColumn( "$page", QVariant(( int )1 ) );
  QgsExpression::setSpecialColumn( "$feature", QVariant(( int )0 ) );
  QgsExpression::setSpecialColumn( "$numpages", QVariant(( int )1 ) );
  QgsExpression::setSpecialColumn( "$numfeatures", QVariant(( int )0 ) );
  QgsExpression::setSpecialColumn( "$atlasfeatureid", QVariant(( int )0 ) );
  QgsExpression::setSpecialColumn( "$atlasfeature", QVariant::fromValue( QgsFeature() ) );
  QgsExpression::setSpecialColumn( "$atlasgeometry", QVariant::fromValue( QgsGeometry() ) );

  //listen out for layer removal
  connect( QgsMapLayerRegistry::instance(), SIGNAL( layersWillBeRemoved( QStringList ) ), this, SLOT( removeLayers( QStringList ) ) );
}