org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/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.internal.lttng2.ui.views.control;
  15
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.jface.action.MenuManager;
  20 import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
  21 import org.eclipse.jface.viewers.ISelection;
  22 import org.eclipse.jface.viewers.StructuredSelection;
  23 import org.eclipse.jface.viewers.TreeViewer;
  24 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent;
  25 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener;
  26 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceControlRoot;
  27 import org.eclipse.swt.SWT;
  28 import org.eclipse.swt.widgets.Composite;
  29 import org.eclipse.swt.widgets.Menu;
  30 import org.eclipse.ui.part.ViewPart;
  31 import org.eclipse.ui.progress.UIJob;
  32
  33 /**
  34  * <b><u>ControlView</u></b>
  35  * <p>
  36  * View implementation for Trace Control.
  37  * </p>
  38  */
  39 public class ControlView extends ViewPart implements ITraceControlComponentChangedListener {
  40
  41     // ------------------------------------------------------------------------
  42     // Constants
  43     // ------------------------------------------------------------------------
  44     /**
  45      * View ID.
  46      */
  47     public static final String ID = "org.eclipse.linuxtools.internal.lttng2.ui.views.control"; //$NON-NLS-1$
  48
  49     // ------------------------------------------------------------------------
  50     // Attributes
  51     // ------------------------------------------------------------------------
  52
  53     /**
  54      * The tree viewer.
  55      */
  56     private TreeViewer fTreeViewer = null;
  57
  58     /**
  59      * The trace control root node. This provides access to the whole model.
  60      */
  61     private ITraceControlComponent fRoot = null;
  62
  63     // ------------------------------------------------------------------------
  64     // Constructors
  65     // ------------------------------------------------------------------------
  66
  67     // ------------------------------------------------------------------------
  68     // Accessors
  69     // ------------------------------------------------------------------------
  70
  71     /**
  72      * @return returns the trace control tree node (model).
  73      */
  74     public ITraceControlComponent getTraceControlRoot() {
  75         return fRoot;
  76     }
  77
  78     // ------------------------------------------------------------------------
  79     // Operations
  80     // ------------------------------------------------------------------------
  81
  82     /*
  83      * (non-Javadoc)
  84      *
  85      * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
  86      */
  87     @Override
  88     public void createPartControl(Composite parent) {
  89         // Create tree viewer
  90         fTreeViewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  91         ColumnViewerToolTipSupport.enableFor(fTreeViewer);
  92
  93         fTreeViewer.setContentProvider(new TraceControlContentProvider());
  94         fTreeViewer.setLabelProvider(new TraceControlLabelProvider());
  95
  96         // Create model root
  97         fRoot = new TraceControlRoot();
  98         fRoot.addComponentListener(this);
  99         fTreeViewer.setInput(fRoot);
 100
 101         // Create context menu for the tree viewer
 102         createContextMenu();
 103
 104         getSite().setSelectionProvider(fTreeViewer);
 105     }
 106
 107     /*
 108      * (non-Javadoc)
 109      *
 110      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 111      */
 112     @Override
 113     public void setFocus() {
 114         fTreeViewer.getControl().setFocus();
 115     }
 116
 117     /*
 118      * (non-Javadoc)
 119      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener#componentAdded(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent, org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 120      */
 121     @Override
 122     public void componentAdded(ITraceControlComponent parent, ITraceControlComponent component) {
 123         componentChanged(parent);
 124     }
 125
 126     /*
 127      * (non-Javadoc)
 128      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener#componentRemoved(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent, org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 129      */
 130     @Override
 131     public void componentRemoved(ITraceControlComponent parent, ITraceControlComponent component) {
 132         componentChanged(parent);
 133     }
 134
 135     /*
 136      * (non-Javadoc)
 137      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener#componentChanged(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 138      */
 139     @Override
 140     public void componentChanged(final ITraceControlComponent component) {
 141         if (fTreeViewer.getTree().isDisposed()) {
 142             return;
 143         }
 144
 145         UIJob myJob = new UIJob("Refresh") { //$NON-NLS-1$
 146             @Override
 147             public IStatus runInUIThread(IProgressMonitor monitor) {
 148                 if (fTreeViewer.getTree().isDisposed()) {
 149                     return Status.OK_STATUS;
 150                 }
 151
 152                 fTreeViewer.refresh(component);
 153
 154                 // Change selection needed
 155                 final ISelection sel = fTreeViewer.getSelection();
 156                 fTreeViewer.setSelection(null);
 157                 fTreeViewer.setSelection(sel);
 158
 159                 return Status.OK_STATUS;
 160             }
 161         };
 162         myJob.setUser(false);
 163         myJob.schedule();
 164     }
 165
 166     /**
 167      * Sets the selected component in the tree
 168      * @param component - component to select
 169      */
 170     public void setSelection(ITraceControlComponent component) {
 171         ITraceControlComponent[] components = new ITraceControlComponent[1];
 172         components[0] = component;
 173         setSelection(components);
 174     }
 175
 176     /**
 177      * Sets the selected components in the tree
 178      * @param component - array of components to select
 179      */
 180     public void setSelection(ITraceControlComponent[] components) {
 181         final StructuredSelection selection = new StructuredSelection(components);
 182         UIJob myJob = new UIJob("Select") { //$NON-NLS-1$
 183             @Override
 184             public IStatus runInUIThread(IProgressMonitor monitor) {
 185                 fTreeViewer.setSelection(selection);
 186                 return Status.OK_STATUS;
 187             }
 188         };
 189         myJob.setUser(false);
 190         myJob.schedule();
 191     }
 192
 193 //    public ITraceControlComponent getSelection() {
 194 //        ISelection selection = fTreeViewer.getSelection();
 195 //
 196 //    }
 197
 198     // ------------------------------------------------------------------------
 199     // Helper methods
 200     // ------------------------------------------------------------------------
 201     private void createContextMenu() {
 202         // First we create a menu Manager
 203         final MenuManager menuManager = new MenuManager();
 204         final Menu menu = menuManager.createContextMenu(fTreeViewer.getTree());
 205         // Set the MenuManager
 206         fTreeViewer.getTree().setMenu(menu);
 207         getSite().registerContextMenu(menuManager, fTreeViewer);
 208     }
 209 }