/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.menu.actions.handlers;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.papyrus.uml.diagram.menu.actions.ZoomAction;
/**
* Handler for the zoom action
*
*
*
*/
public class ZoomHandler extends AbstractParametricHandler {
/**
*
* Constructor.
*
*/
public ZoomHandler() {
super("org.eclipse.papyrus.uml.diagram.menu.commandZoomParameter"); //$NON-NLS-1$
}
/**
*
* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*
* @param event
* @return
* @throws ExecutionException
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
ZoomAction action = new ZoomAction(getParameter(), getSelectedElements());
if(action.isEnabled()) {
action.doRun(null);
}
return null;
}
/**
*
* @see org.eclipse.papyrus.uml.diagram.menu.actions.handlers.AbstractParametricHandler#isEnabled()
*
* @return
*/
@Override
public boolean isEnabled() {
ZoomAction action = new ZoomAction(getParameter(), getSelectedElements());
return action.isEnabled();
}
/**
*
* @return
*/
protected String getParameter() {
return this.parameter == null ? ZoomAction.ZOOM_100_PARAMETER : this.parameter;
}
}