/*******************************************************************************
* 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.Inject;
import javax.inject.Named;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
import au.gov.ga.earthsci.application.parts.legend.LegendPart;
import au.gov.ga.earthsci.layer.tree.ILayerTreeNode;
import au.gov.ga.earthsci.layer.ui.Messages;
/**
* Handles layer node legend button selection.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class LegendHandler
{
@Inject
private EPartService partService;
@Inject
private EModelService modelService;
@Inject
private MWindow window;
@Execute
public void execute(@Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode layerNode)
{
if (layerNode.getLegendURL() != null)
{
String tag = layerNode.getLegendURL().toString();
tag += "|" + layerNode.getId(); //$NON-NLS-1$
String label = Messages.bind(Messages.LegendHandler_PartLabel, layerNode.getLabelOrName());
MPart part = LegendPart.showPart(partService, modelService, window, tag, label);
part.getContext().modify(LegendPart.INPUT_NAME, layerNode);
part.getContext().declareModifiable(LegendPart.INPUT_NAME);
}
}
@CanExecute
public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) ILayerTreeNode layer)
{
return layer != null && layer.getLegendURL() != null;
}
}