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