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

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2014 IBM Corporation, Ericsson
   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  *
   8  * Contributors:
   9  *     IBM - Initial API and implementation
  10  *     Bernd Hufmann - Updated for TMF
  11  **********************************************************************/
  12
  13 package org.eclipse.tracecompass.tmf.ui.views.uml2sd.handlers;
  14
  15 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  16 import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants;
  17 import org.eclipse.tracecompass.tmf.ui.views.uml2sd.SDView;
  18 import org.eclipse.tracecompass.tmf.ui.views.uml2sd.util.Messages;
  19
  20 /**
  21  * Action class implementation to move the focus to the previous page of the whole sequence diagram.
  22  *
  23  * @version 1.0
  24  * @author sveyrier
  25  *
  26  */
  27 public class PrevPage extends BaseSDAction {
  28
  29     // ------------------------------------------------------------------------
  30     // Constants
  31     // ------------------------------------------------------------------------
  32
  33     /**
  34      * The action ID.
  35      */
  36     public static final String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.prevpage"; //$NON-NLS-1$
  37
  38     // ------------------------------------------------------------------------
  39     // Constructors
  40     // ------------------------------------------------------------------------
  41
  42     /**
  43      * Default constructor
  44      *
  45      * @param view the view reference
  46      */
  47     public PrevPage(SDView view) {
  48         super(view);
  49         setText(Messages.SequenceDiagram_PreviousPage);
  50         setToolTipText(Messages.SequenceDiagram_GoToPreviousPage);
  51         setId(ID);
  52         setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_PREV_PAGE));
  53     }
  54
  55     // ------------------------------------------------------------------------
  56     // Methods
  57     // ------------------------------------------------------------------------
  58
  59     @Override
  60     public void run() {
  61         if ((getView() == null) || (getView().getSDWidget()) == null) {
  62             return;
  63         }
  64         if (getView().getSDPagingProvider() != null) {
  65             getView().getSDPagingProvider().prevPage();
  66         }
  67         getView().updateCoolBar();
  68         getView().getSDWidget().redraw();
  69     }
  70 }