/**********************************************************************
- * Copyright (c) 2005, 2006, 2011 IBM Corporation and others.
+ * Copyright (c) 2005, 2013 IBM Corporation, Ericsson
* 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
- * $Id: MoveSDUp.java,v 1.2 2006/09/20 20:56:26 ewchan Exp $
- *
- * Contributors:
- * IBM - Initial API and implementation
- * Bernd Hufmann - Updated for TMF
+ *
+ * Contributors:
+ * IBM - Initial API and implementation
+ * Bernd Hufmann - Updated for TMF
**********************************************************************/
+
package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers;
import org.eclipse.jface.action.Action;
import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDWidget;
/**
+ * Action class implementation to move up in the sequence diagram view within a
+ * page.
+ *
+ * @version 1.0
* @author sveyrier
- *
*/
public class MoveSDUp extends Action {
// ------------------------------------------------------------------------
- // Attributes
+ // Constants
// ------------------------------------------------------------------------
+ /**
+ * The action ID.
+ */
public final static String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.MoveSDUp"; //$NON-NLS-1$
+ // ------------------------------------------------------------------------
+ // Attributes
+ // ------------------------------------------------------------------------
+ /**
+ * The sequence diagram view reference.
+ */
protected SDView fView = null;
// ------------------------------------------------------------------------
// Constructors
// ------------------------------------------------------------------------
+ /**
+ * Default constructor
+ */
public MoveSDUp() {
this(null);
}
+ /**
+ * Constructor
+ *
+ * @param view a sequence diagram view reference
+ */
public MoveSDUp(SDView view) {
super();
setId(ID);
setActionDefinitionId(ID);
- fView = ((SDView) view);
+ fView = view;
}
// ------------------------------------------------------------------------
- // Operations
+ // Methods
// ------------------------------------------------------------------------
- /*
- * (non-Javadoc)
- * @see org.eclipse.jface.action.Action#run()
- */
+
@Override
public void run() {
if (fView == null) {
return;
}
- SDWidget viewer = ((SDView) fView).getSDWidget();
+ SDWidget viewer = fView.getSDWidget();
+
if (viewer != null) {
viewer.scrollBy(0, -viewer.getVisibleHeight());
}