/*******************************************************************************
* Copyright 2012 Geoscience Australia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package au.gov.ga.earthsci.layer.ui.handlers;
import javax.inject.Named;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.Transfer;
import au.gov.ga.earthsci.layer.tree.ILayerTreeNode;
import au.gov.ga.earthsci.layer.ui.dnd.LayerTransfer;
import au.gov.ga.earthsci.layer.ui.dnd.LayerTransferData;
/**
* Handles cut commands for the layer tree.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class CutHandler
{
@Execute
public void execute(@Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode layer, Clipboard clipboard)
{
execute(new ILayerTreeNode[] { layer }, clipboard);
}
@Execute
public void execute(@Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode[] layers, Clipboard clipboard)
{
LayerTransferData data = LayerTransferData.fromNodes(layers);
clipboard.setContents(new Object[] { data }, new Transfer[] { LayerTransfer.getInstance() });
for (ILayerTreeNode node : layers)
{
node.removeFromParent();
}
}
@CanExecute
public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode layer)
{
return layer != null;
}
@CanExecute
public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode[] layers)
{
return layers != null && layers.length > 0;
}
}