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

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2013 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.linuxtools.tmf.ui.views.uml2sd.handlers;
  14
  15 import java.util.Iterator;
  16
  17 import org.eclipse.jface.action.Action;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.ISelectionProvider;
  20 import org.eclipse.jface.viewers.StructuredSelection;
  21 import org.eclipse.linuxtools.internal.tmf.ui.ITmfImageConstants;
  22 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  23 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDView;
  24 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.SDWidget;
  25 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.BaseMessage;
  26 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.GraphNode;
  27 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.SyncMessage;
  28 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.SyncMessageReturn;
  29
  30 /**
  31  * Action Class implementation to move to selected message
  32  *
  33  * @version 1.0
  34  * @author sveyrier
  35  *
  36  */
  37 public class MoveToMessage extends Action {
  38
  39     // ------------------------------------------------------------------------
  40     // Constants
  41     // ------------------------------------------------------------------------
  42     /**
  43      * The action ID.
  44      */
  45     public final static String ID = "org.eclipse.linuxtools.tmf.ui.views.uml2sd.handlers.GoToMessage"; //$NON-NLS-1$
  46
  47     // ------------------------------------------------------------------------
  48     // Attributes
  49     // ------------------------------------------------------------------------
  50     /**
  51      * The sequence diagram view reference.
  52      */
  53     protected SDView fView = null;
  54
  55     // ------------------------------------------------------------------------
  56     // Constructors
  57     // ------------------------------------------------------------------------
  58     /**
  59      * Default Constructor
  60      */
  61     public MoveToMessage() {
  62         this(null);
  63     }
  64
  65     /**
  66      * Constructor
  67      *
  68      * @param view a sequence diagram view reference
  69      */
  70     public MoveToMessage(SDView view) {
  71         super();
  72         setId(ID);
  73         setActionDefinitionId(ID);
  74         setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_SEARCH_MATCH));
  75         fView = view;
  76     }
  77
  78     // ------------------------------------------------------------------------
  79     // Methods
  80     // ------------------------------------------------------------------------
  81
  82     @Override
  83     public void run() {
  84         if (fView == null) {
  85             return;
  86         }
  87
  88         SDWidget sdWidget = fView.getSDWidget();
  89
  90         if (sdWidget == null) {
  91             return;
  92         }
  93
  94         ISelectionProvider selProvider = sdWidget.getSelectionProvider();
  95         ISelection sel = selProvider.getSelection();
  96         Object selectedNode = null;
  97         Iterator<Object> it = ((StructuredSelection) sel).iterator();
  98         while (it.hasNext()) {
  99             Object node = it.next();
 100             if (node instanceof BaseMessage) {
 101                 selectedNode = node;
 102             }
 103         }
 104
 105         if (selectedNode == null) {
 106             return;
 107         }
 108
 109         if (selectedNode instanceof SyncMessageReturn) {
 110             GraphNode node = ((SyncMessageReturn) selectedNode).getMessage();
 111             sdWidget.clearSelection();
 112             sdWidget.addSelection(node);
 113             sdWidget.ensureVisible(node);
 114             // sdWidget.setFocusNode(node);
 115             sdWidget.redraw();
 116         } else if (selectedNode instanceof SyncMessage) {
 117             GraphNode node = ((SyncMessage) selectedNode).getMessageReturn();
 118             sdWidget.clearSelection();
 119             sdWidget.addSelection(node);
 120             sdWidget.ensureVisible(node);
 121             // sdWidget.setFocusNode(node);
 122             sdWidget.redraw();
 123         }
 124     }
 125
 126     /**
 127      * Sets the active SD view.
 128      *
 129      * @param view The SD view.
 130      */
 131     public void setView(SDView view) {
 132         fView = view;
 133     }
 134 }