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Viewing changes to lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/handlers/MoveSDUp.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2012-06-29 12:07:30 UTC
  • Revision ID: package-import@ubuntu.com-20120629120730-bfri1xys1i71dpn6
Tags: upstream-1.0.0
Import upstream version 1.0.0

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lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/handlers/MoveSDUp.java
 
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/**********************************************************************
 
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 * Copyright (c) 2005, 2006 IBM Corporation and others.
 
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 * Copyright (c) 2011, 2012 Ericsson.
 
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 *
 
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 * All rights reserved.   This program and the accompanying materials
 
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 * are made available under the terms of the Eclipse Public License v1.0
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.eclipse.org/legal/epl-v10.html
 
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 *
 
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 * Contributors:
 
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 * IBM - Initial API and implementation
 
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 * Bernd Hufmann - Updated for TMF
 
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 **********************************************************************/
 
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package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers;
 
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import org.eclipse.jface.action.Action;
 
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import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView;
 
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import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDWidget;
 
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/**
 
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 * Action class implementation to move up in the sequence diagram view within a
 
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 * page.
 
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 *
 
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 * @version 1.0
 
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 * @author sveyrier
 
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 */
 
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public class MoveSDUp extends Action {
 
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    // ------------------------------------------------------------------------
 
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    // Constants
 
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    // ------------------------------------------------------------------------
 
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    /**
 
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     * The action ID.
 
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     */
 
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    public final static String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.MoveSDUp"; //$NON-NLS-1$
 
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    // ------------------------------------------------------------------------
 
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    // Attributes
 
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    // ------------------------------------------------------------------------
 
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    /**
 
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     * The sequence diagram view reference.
 
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     */
 
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    protected SDView fView = null;
 
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    // ------------------------------------------------------------------------
 
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    // Constructors
 
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    // ------------------------------------------------------------------------
 
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    /**
 
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     * Default constructor
 
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     */
 
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    public MoveSDUp() {
 
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        this(null);
 
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    }
 
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    /**
 
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     * Constructor
 
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     *
 
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     * @param view a sequence diagram view reference
 
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     */
 
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    public MoveSDUp(SDView view) {
 
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        super();
 
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        setId(ID);
 
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        setActionDefinitionId(ID);
 
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        fView = ((SDView) view);
 
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    }
 
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    // ------------------------------------------------------------------------
 
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    // Methods
 
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    // ------------------------------------------------------------------------
 
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    /*
 
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     * (non-Javadoc)
 
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     * @see org.eclipse.jface.action.Action#run()
 
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     */
 
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    @Override
 
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    public void run() {
 
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        if (fView == null) {
 
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            return;
 
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        }
 
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        SDWidget viewer = ((SDView) fView).getSDWidget();
 
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        if (viewer != null) {
 
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            viewer.scrollBy(0, -viewer.getVisibleHeight());
 
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        }
 
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    }
 
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    /**
 
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     * Sets the active SD view.
 
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     * @param view The SD view.
 
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     */
 
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    public void setView(SDView view) {
 
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        fView = view;
 
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    }
 
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}