WireframeHandler.java

/*******************************************************************************
 * Copyright 2013 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.render.DrawContext;

import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
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.render.ExtendedDrawContext;

/**
 * Handles the wireframe command for the globe.
 * 
 * @author Michael de Hoog (michael.dehoog@ga.gov.au)
 */
public class WireframeHandler
{
	@Execute
	public void execute(MToolItem toolItem, GlobePart globe)
	{
		DrawContext dc = globe.getWorldWindow().getSceneController().getDrawContext();
		if (dc instanceof ExtendedDrawContext)
		{
			ExtendedDrawContext edc = (ExtendedDrawContext) dc;
			edc.setWireframe(!edc.isWireframe());
			toolItem.setSelected(edc.isWireframe());
			globe.getWorldWindow().redraw();
		}
	}

	@CanExecute
	public boolean canExecute(GlobePart globe)
	{
		return globe != null
				&& globe.getWorldWindow().getSceneController().getDrawContext() instanceof ExtendedDrawContext;
	}
}