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.rse.core.RSECorePlugin;
  28 import org.eclipse.swt.SWT;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.swt.widgets.Menu;
  31 import org.eclipse.ui.part.ViewPart;
  32 import org.eclipse.ui.progress.UIJob;
  33
  34 /**
  35  * <b><u>ControlView</u></b>
  36  * <p>
  37  * View implementation for Trace Control.
  38  * </p>
  39  */
  40 public class ControlView extends ViewPart implements ITraceControlComponentChangedListener {
  41
  42     // ------------------------------------------------------------------------
  43     // Constants
  44     // ------------------------------------------------------------------------
  45     /**
  46      * View ID.
  47      */
  48     public static final String ID = "org.eclipse.linuxtools.internal.lttng2.ui.views.control"; //$NON-NLS-1$
  49
  50     // ------------------------------------------------------------------------
  51     // Attributes
  52     // ------------------------------------------------------------------------
  53
  54     /**
  55      * The tree viewer.
  56      */
  57     private TreeViewer fTreeViewer = null;
  58
  59     /**
  60      * The trace control root node. This provides access to the whole model.
  61      */
  62     private ITraceControlComponent fRoot = null;
  63
  64     // ------------------------------------------------------------------------
  65     // Constructors
  66     // ------------------------------------------------------------------------
  67
  68     // ------------------------------------------------------------------------
  69     // Accessors
  70     // ------------------------------------------------------------------------
  71
  72     /**
  73      * @return returns the trace control tree node (model).
  74      */
  75     public ITraceControlComponent getTraceControlRoot() {
  76         return fRoot;
  77     }
  78
  79     // ------------------------------------------------------------------------
  80     // Operations
  81     // ------------------------------------------------------------------------
  82
  83     /*
  84      * (non-Javadoc)
  85      *
  86      * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
  87      */
  88     @Override
  89     public void createPartControl(Composite parent) {
  90         // Create tree viewer
  91         fTreeViewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  92         ColumnViewerToolTipSupport.enableFor(fTreeViewer);
  93
  94         fTreeViewer.setContentProvider(new TraceControlContentProvider());
  95         fTreeViewer.setLabelProvider(new TraceControlLabelProvider());
  96
  97         // Create model root
  98         fRoot = new TraceControlRoot();
  99         fRoot.addComponentListener(this);
 100         fTreeViewer.setInput(fRoot);
 101
 102         // Create context menu for the tree viewer
 103         createContextMenu();
 104
 105         getSite().setSelectionProvider(fTreeViewer);
 106
 107         RSECorePlugin.getTheSystemRegistry(); // to load RSE
 108     }
 109
 110     /*
 111      * (non-Javadoc)
 112      *
 113      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 114      */
 115     @Override
 116     public void setFocus() {
 117         fTreeViewer.getControl().setFocus();
 118     }
 119
 120     /*
 121      * (non-Javadoc)
 122      * @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)
 123      */
 124     @Override
 125     public void componentAdded(ITraceControlComponent parent, ITraceControlComponent component) {
 126         componentChanged(parent);
 127     }
 128
 129     /*
 130      * (non-Javadoc)
 131      * @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)
 132      */
 133     @Override
 134     public void componentRemoved(ITraceControlComponent parent, ITraceControlComponent component) {
 135         componentChanged(parent);
 136     }
 137
 138     /*
 139      * (non-Javadoc)
 140      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener#componentChanged(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 141      */
 142     @Override
 143     public void componentChanged(final ITraceControlComponent component) {
 144         if (fTreeViewer.getTree().isDisposed()) {
 145             return;
 146         }
 147
 148         UIJob myJob = new UIJob("Refresh") { //$NON-NLS-1$
 149             @Override
 150             public IStatus runInUIThread(IProgressMonitor monitor) {
 151                 if (fTreeViewer.getTree().isDisposed()) {
 152                     return Status.OK_STATUS;
 153                 }
 154
 155                 fTreeViewer.refresh(component);
 156
 157                 // Change selection needed
 158                 final ISelection sel = fTreeViewer.getSelection();
 159                 fTreeViewer.setSelection(null);
 160                 fTreeViewer.setSelection(sel);
 161
 162                 // Show component that was changed
 163                 fTreeViewer.reveal(component);
 164
 165                 return Status.OK_STATUS;
 166             }
 167         };
 168         myJob.setUser(false);
 169         myJob.schedule();
 170     }
 171
 172     /**
 173      * Sets the selected component in the tree
 174      * @param component - component to select
 175      */
 176     public void setSelection(ITraceControlComponent component) {
 177         ITraceControlComponent[] components = new ITraceControlComponent[1];
 178         components[0] = component;
 179         setSelection(components);
 180     }
 181
 182     /**
 183      * Sets the selected components in the tree
 184      * @param component - array of components to select
 185      */
 186     public void setSelection(ITraceControlComponent[] components) {
 187         final StructuredSelection selection = new StructuredSelection(components);
 188         UIJob myJob = new UIJob("Select") { //$NON-NLS-1$
 189             @Override
 190             public IStatus runInUIThread(IProgressMonitor monitor) {
 191                 fTreeViewer.setSelection(selection);
 192                 return Status.OK_STATUS;
 193             }
 194         };
 195         myJob.setUser(false);
 196         myJob.schedule();
 197     }
 198
 199 //    public ITraceControlComponent getSelection() {
 200 //        ISelection selection = fTreeViewer.getSelection();
 201 //
 202 //    }
 203
 204     // ------------------------------------------------------------------------
 205     // Helper methods
 206     // ------------------------------------------------------------------------
 207     private void createContextMenu() {
 208         // First we create a menu Manager
 209         final MenuManager menuManager = new MenuManager();
 210         final Menu menu = menuManager.createContextMenu(fTreeViewer.getTree());
 211         // Set the MenuManager
 212         fTreeViewer.getTree().setMenu(menu);
 213         getSite().registerContextMenu(menuManager, fTreeViewer);
 214     }
 215 }