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.TraceControlContentProvider;
  27 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceControlLabelProvider;
  28 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceControlRoot;
  29 import org.eclipse.rse.core.RSECorePlugin;
  30 import org.eclipse.swt.SWT;
  31 import org.eclipse.swt.widgets.Composite;
  32 import org.eclipse.swt.widgets.Menu;
  33 import org.eclipse.ui.part.ViewPart;
  34 import org.eclipse.ui.progress.UIJob;
  35
  36 /**
  37  * <p>
  38  * View implementation for Trace Control.
  39  * </p>
  40  *
  41  * @author Bernd Hufmann
  42  */
  43 public class ControlView extends ViewPart implements ITraceControlComponentChangedListener {
  44
  45     // ------------------------------------------------------------------------
  46     // Constants
  47     // ------------------------------------------------------------------------
  48     /**
  49      * View ID.
  50      */
  51     public static final String ID = "org.eclipse.linuxtools.internal.lttng2.ui.views.control"; //$NON-NLS-1$
  52
  53     // ------------------------------------------------------------------------
  54     // Attributes
  55     // ------------------------------------------------------------------------
  56
  57     /**
  58      * The tree viewer.
  59      */
  60     private TreeViewer fTreeViewer = null;
  61
  62     /**
  63      * The trace control root node. This provides access to the whole model.
  64      */
  65     private ITraceControlComponent fRoot = null;
  66
  67     // ------------------------------------------------------------------------
  68     // Constructors
  69     // ------------------------------------------------------------------------
  70
  71     // ------------------------------------------------------------------------
  72     // Accessors
  73     // ------------------------------------------------------------------------
  74
  75     /**
  76      * Returns the trace control tree node (model)
  77      *
  78      * @return the trace control tree node (model).
  79      */
  80     public ITraceControlComponent getTraceControlRoot() {
  81         return fRoot;
  82     }
  83
  84     // ------------------------------------------------------------------------
  85     // Operations
  86     // ------------------------------------------------------------------------
  87
  88     /*
  89      * (non-Javadoc)
  90      *
  91      * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
  92      */
  93     @Override
  94     public void createPartControl(Composite parent) {
  95         // Create tree viewer
  96         fTreeViewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  97         ColumnViewerToolTipSupport.enableFor(fTreeViewer);
  98
  99         fTreeViewer.setContentProvider(new TraceControlContentProvider());
 100         fTreeViewer.setLabelProvider(new TraceControlLabelProvider());
 101
 102         // Create model root
 103         fRoot = new TraceControlRoot();
 104         fRoot.addComponentListener(this);
 105         fTreeViewer.setInput(fRoot);
 106
 107         // Create context menu for the tree viewer
 108         createContextMenu();
 109
 110         getSite().setSelectionProvider(fTreeViewer);
 111
 112         RSECorePlugin.getTheSystemRegistry(); // to load RSE
 113     }
 114
 115     /*
 116      * (non-Javadoc)
 117      *
 118      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 119      */
 120     @Override
 121     public void setFocus() {
 122         fTreeViewer.getControl().setFocus();
 123     }
 124
 125     /*
 126      * (non-Javadoc)
 127      * @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)
 128      */
 129     @Override
 130     public void componentAdded(ITraceControlComponent parent, ITraceControlComponent component) {
 131         componentChanged(parent);
 132     }
 133
 134     /*
 135      * (non-Javadoc)
 136      * @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)
 137      */
 138     @Override
 139     public void componentRemoved(ITraceControlComponent parent, ITraceControlComponent component) {
 140         componentChanged(parent);
 141     }
 142
 143     /*
 144      * (non-Javadoc)
 145      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponentChangedListener#componentChanged(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent)
 146      */
 147     @Override
 148     public void componentChanged(final ITraceControlComponent component) {
 149         if (fTreeViewer.getTree().isDisposed()) {
 150             return;
 151         }
 152
 153         UIJob myJob = new UIJob("Refresh") { //$NON-NLS-1$
 154             @Override
 155             public IStatus runInUIThread(IProgressMonitor monitor) {
 156                 if (fTreeViewer.getTree().isDisposed()) {
 157                     return Status.OK_STATUS;
 158                 }
 159
 160                 fTreeViewer.refresh(component);
 161
 162                 // Change selection needed
 163                 final ISelection sel = fTreeViewer.getSelection();
 164                 fTreeViewer.setSelection(null);
 165                 fTreeViewer.setSelection(sel);
 166
 167                 // Show component that was changed
 168                 fTreeViewer.reveal(component);
 169
 170                 return Status.OK_STATUS;
 171             }
 172         };
 173         myJob.setUser(false);
 174         myJob.schedule();
 175     }
 176
 177     /**
 178      * Sets the selected component in the tree
 179      * @param component - component to select
 180      */
 181     public void setSelection(ITraceControlComponent component) {
 182         ITraceControlComponent[] components = new ITraceControlComponent[1];
 183         components[0] = component;
 184         setSelection(components);
 185     }
 186
 187     /**
 188      * Sets the selected components in the tree
 189      * @param components - array of components to select
 190      */
 191     public void setSelection(ITraceControlComponent[] components) {
 192         final StructuredSelection selection = new StructuredSelection(components);
 193         UIJob myJob = new UIJob("Select") { //$NON-NLS-1$
 194             @Override
 195             public IStatus runInUIThread(IProgressMonitor monitor) {
 196                 fTreeViewer.setSelection(selection);
 197                 return Status.OK_STATUS;
 198             }
 199         };
 200         myJob.setUser(false);
 201         myJob.schedule();
 202     }
 203
 204     // ------------------------------------------------------------------------
 205     // Helper methods
 206     // ------------------------------------------------------------------------
 207     /**
 208      * Creates the context sensitive menu.
 209      */
 210     private void createContextMenu() {
 211         // First we create a menu Manager
 212         final MenuManager menuManager = new MenuManager();
 213         final Menu menu = menuManager.createContextMenu(fTreeViewer.getTree());
 214         // Set the MenuManager
 215         fTreeViewer.getTree().setMenu(menu);
 216         getSite().registerContextMenu(menuManager, fTreeViewer);
 217     }
 218 }