SCViewer/com.minres.scviewer.ui/src/com/minres/scviewer/ui/handler/ZoomInOut.java

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/*******************************************************************************
* Copyright (c) 2014, 2015 MINRES Technologies GmbH and others.
* 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:
* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package com.minres.scviewer.ui.handler;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.handlers.HandlerUtil;
import com.minres.scviewer.ui.TxEditorPart;
public class ZoomInOut extends AbstractHandler {
private static final String ZOOMIN_ID = "com.minres.scviewer.ui.zoomin";
private static final String ZOOMOUT_ID= "com.minres.scviewer.ui.zoomout";
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IEditorPart editor = HandlerUtil.getActiveEditor(event);
if(editor instanceof TxEditorPart){
String id = event.getCommand().getId();
TxEditorPart txEditor=(TxEditorPart) editor;
if (ZOOMIN_ID.compareTo(id) == 0)
txEditor.setZoomLevel(txEditor.getZoomLevel()-1);
else if(ZOOMOUT_ID.compareTo(id) == 0)
txEditor.setZoomLevel(txEditor.getZoomLevel()+1);
}
return null;
}
}