org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/ControlView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 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  *   Francois Chouinard - Initial API and implementation
  11  *   Bernd Hufmann - Filled with content
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.lttng.ui.views.control;
  15
  16 import org.eclipse.jface.action.MenuManager;
  17 import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.TreeViewer;
  20 import org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent;
  21 import org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponentChangedListener;
  22 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceControlRoot;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.widgets.Composite;
  25 import org.eclipse.swt.widgets.Menu;
  26 import org.eclipse.ui.part.ViewPart;
  27
  28 /**
  29  * <b><u>ControlView</u></b>
  30  * <p>
  31  * View implementation for Trace Control.
  32  * </p>
  33  */
  34 public class ControlView extends ViewPart implements ITraceControlComponentChangedListener {
  35
  36     // ------------------------------------------------------------------------
  37     // Constants
  38     // ------------------------------------------------------------------------
  39     /**
  40      * View ID.
  41      */
  42     public static final String ID = "org.eclipse.linuxtools.lttng.ui.views.control"; //$NON-NLS-1$
  43
  44     // ------------------------------------------------------------------------
  45     // Attributes
  46     // ------------------------------------------------------------------------
  47
  48     /**
  49      * The tree viewer.
  50      */
  51     private TreeViewer fTreeViewer = null;
  52
  53     /**
  54      * The trace control root node. This provides access to the whole model.
  55      */
  56     private ITraceControlComponent fRoot = null;
  57
  58     // ------------------------------------------------------------------------
  59     // Constructors
  60     // ------------------------------------------------------------------------
  61
  62     // ------------------------------------------------------------------------
  63     // Accessors
  64     // ------------------------------------------------------------------------
  65
  66     /**
  67      * @return returns the trace control tree node (model).
  68      */
  69     public ITraceControlComponent getTraceControlRoot() {
  70         return fRoot;
  71     }
  72
  73     // ------------------------------------------------------------------------
  74     // Operations
  75     // ------------------------------------------------------------------------
  76
  77     /*
  78      * (non-Javadoc)
  79      *
  80      * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
  81      */
  82     @Override
  83     public void createPartControl(Composite parent) {
  84         // Create tree viewer
  85         fTreeViewer = new TreeViewer(parent, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL);
  86         ColumnViewerToolTipSupport.enableFor(fTreeViewer);
  87
  88         fTreeViewer.setContentProvider(new TraceControlContentProvider());
  89         fTreeViewer.setLabelProvider(new TraceControlLabelProvider());
  90
  91         // Create model root
  92         fRoot = new TraceControlRoot();
  93         fRoot.addComponentListener(this);
  94         fTreeViewer.setInput(fRoot);
  95
  96         // Create context menu for the tree viewer
  97         createContextMenu();
  98
  99         getSite().setSelectionProvider(fTreeViewer);
 100     }
 101
 102     /*
 103      * (non-Javadoc)
 104      *
 105      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 106      */
 107     @Override
 108     public void setFocus() {
 109         fTreeViewer.getControl().setFocus();
 110     }
 111
 112     /*
 113      * (non-Javadoc)
 114      * @see org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponentChangedListener#componentAdded(org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent, org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent)
 115      */
 116     @Override
 117     public void componentAdded(ITraceControlComponent parent, ITraceControlComponent component) {
 118         componentChanged(component);
 119     }
 120
 121     /*
 122      * (non-Javadoc)
 123      * @see org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponentChangedListener#componentRemoved(org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent, org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent)
 124      */
 125     @Override
 126     public void componentRemoved(ITraceControlComponent parent, ITraceControlComponent component) {
 127         componentChanged(component);
 128     }
 129
 130     /*
 131      * (non-Javadoc)
 132      * @see org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponentChangedListener#componentChanged(org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent)
 133      */
 134     @Override
 135     public void componentChanged(ITraceControlComponent component) {
 136         if (fTreeViewer.getTree().isDisposed()) {
 137             return;
 138         }
 139
 140         fTreeViewer.getTree().getDisplay().asyncExec(new Runnable() {
 141             @Override
 142             public void run() {
 143                 if (fTreeViewer.getTree().isDisposed()) {
 144                     return;
 145                 }
 146                 fTreeViewer.refresh();
 147                 // Change selection needed
 148                 final ISelection sel = fTreeViewer.getSelection();
 149                 fTreeViewer.setSelection(null);
 150                 fTreeViewer.setSelection(sel);
 151             }
 152         });
 153     }
 154
 155     // ------------------------------------------------------------------------
 156     // Helper methods
 157     // ------------------------------------------------------------------------
 158     private void createContextMenu() {
 159         // First we create a menu Manager
 160         final MenuManager menuManager = new MenuManager();
 161         final Menu menu = menuManager.createContextMenu(fTreeViewer.getTree());
 162         // Set the MenuManager
 163         fTreeViewer.getTree().setMenu(menu);
 164         getSite().registerContextMenu(menuManager, fTreeViewer);
 165     }
 166 }