org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/handlers/PrevPage.java

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2008, 2011 IBM Corporation and others.
   3  * All rights reserved.   This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  * $Id: PrevPage.java,v 1.3 2008/01/24 02:28:52 apnan Exp $
   8  *
   9  * Contributors:
  10  * IBM - Initial API and implementation
  11  * Bernd Hufmann - Updated for TMF
  12  **********************************************************************/
  13 package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers;
  14
  15 import org.eclipse.jface.action.Action;
  16 import org.eclipse.linuxtools.tmf.ui.ITmfImageConstants;
  17 import org.eclipse.linuxtools.tmf.ui.TmfUiPlugin;
  18 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView;
  19 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.util.SDMessages;
  20
  21 /**
  22  * @author sveyrier
  23  *
  24  */
  25 public class PrevPage extends Action {
  26
  27     // ------------------------------------------------------------------------
  28     // Attributes
  29     // ------------------------------------------------------------------------
  30     public final static String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.prevpage"; //$NON-NLS-1$
  31
  32     protected SDView view = null;
  33
  34     // ------------------------------------------------------------------------
  35     // Constructors
  36     // ------------------------------------------------------------------------
  37     public PrevPage(SDView theView) {
  38         super();
  39         view = theView;
  40         setText(SDMessages._35);
  41         setToolTipText(SDMessages._37);
  42         setId(ID);
  43         setImageDescriptor(TmfUiPlugin.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_PREV_PAGE));
  44     }
  45
  46     // ------------------------------------------------------------------------
  47     // Operations
  48     // ------------------------------------------------------------------------
  49     /*
  50      * (non-Javadoc)
  51      * @see org.eclipse.jface.action.Action#run()
  52      */
  53     @Override
  54     public void run() {
  55         if ((view == null) || (view.getSDWidget()) == null) {
  56             return;
  57         }
  58         if (view.getSDPagingProvider() != null) {
  59             view.getSDPagingProvider().prevPage();
  60         }
  61         view.updateCoolBar();
  62         view.getSDWidget().redraw();
  63     }
  64 }