/*******************************************************************************
* Copyright 2014 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.application.parts.globe.handlers;
import gov.nasa.worldwind.View;
import javax.inject.Inject;
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.di.UIEventTopic;
import org.eclipse.e4.ui.model.application.ui.menu.MToolItem;
import au.gov.ga.earthsci.application.parts.globe.GlobePart;
import au.gov.ga.earthsci.worldwind.common.view.target.ITargetView;
/**
* Handler that toggles the {@link ITargetView}'s target mode.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public class TargetModeHandler
{
private GlobePart globe;
private MToolItem toolItem;
@Execute
public void execute(MToolItem toolItem, GlobePart globe)
{
View view = globe.getWorldWindow().getView();
if (view instanceof ITargetView)
{
TargetModeSwitcher.setTargetMode((ITargetView) view, !toolItem.isSelected());
}
}
@CanExecute
public boolean canExecute(MToolItem toolItem, GlobePart globe)
{
this.toolItem = toolItem;
this.globe = globe;
return globe != null && globe.getWorldWindow().getView() instanceof ITargetView;
}
@Inject
@Optional
public void targetModeToggledHandler(@UIEventTopic(TargetModeSwitcher.TARGET_MODE_EVENT_TOPIC) View view)
{
if (globe != null && toolItem != null &&
view == globe.getWorldWindow().getView() && view instanceof ITargetView)
{
toolItem.setSelected(!((ITargetView) view).isTargetMode());
}
}
}