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