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

   1 /**********************************************************************
   2  * Copyright (c) 2011, 2012 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers;
  13
  14 import org.eclipse.jface.action.Action;
  15 import org.eclipse.linuxtools.internal.tmf.ui.ITmfImageConstants;
  16 import org.eclipse.linuxtools.internal.tmf.ui.TmfUiPlugin;
  17 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView;
  18 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.util.SDMessages;
  19
  20 /**
  21  * Action class implementation to move the focus to the first page of the whole sequence diagram.
  22  *
  23  * @version 1.0
  24  * @author Bernd Hufmann
  25  */
  26 public class FirstPage extends Action {
  27
  28     // ------------------------------------------------------------------------
  29     // Constants
  30     // ------------------------------------------------------------------------
  31     /**
  32      * The action ID.
  33      */
  34     public static final String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.firstpage"; //$NON-NLS-1$
  35
  36     // ------------------------------------------------------------------------
  37     // Attributes
  38     // ------------------------------------------------------------------------
  39     /**
  40      * The sequence diagram view reference
  41      */
  42     protected SDView fView = null;
  43
  44     // ------------------------------------------------------------------------
  45     // Constructors
  46     // ------------------------------------------------------------------------
  47     /**
  48      * Default constructor
  49      *
  50      * @param theView the view reference
  51      */
  52     public FirstPage(SDView theView) {
  53         super();
  54         fView = theView;
  55         setText(SDMessages._139);
  56         setToolTipText(SDMessages._140);
  57         setId(ID);
  58         setImageDescriptor(TmfUiPlugin.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_FIRST_PAGE));
  59     }
  60
  61     // ------------------------------------------------------------------------
  62     // Methods
  63     // ------------------------------------------------------------------------
  64     /*
  65      * (non-Javadoc)
  66      * @see org.eclipse.jface.action.Action#run()
  67      */
  68     @Override
  69     public void run() {
  70         if ((fView == null) || (fView.getSDWidget()) == null) {
  71             return;
  72         }
  73         if (fView.getSDPagingProvider() != null) {
  74             fView.getSDPagingProvider().firstPage();
  75         }
  76         fView.updateCoolBar();
  77         fView.getSDWidget().redraw();
  78     }
  79 }