org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/project/model/TmfNavigatorLabelProvider.java

   1 /*******************************************************************************
   2  * Copyright (c) 2011 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  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.project.model;
  14
  15 import java.net.URL;
  16
  17 import org.eclipse.core.runtime.CoreException;
  18 import org.eclipse.core.runtime.Platform;
  19 import org.eclipse.jface.resource.ImageDescriptor;
  20 import org.eclipse.jface.viewers.ILabelProviderListener;
  21 import org.eclipse.linuxtools.tmf.ui.TmfUiPlugin;
  22 import org.eclipse.swt.graphics.Image;
  23 import org.eclipse.ui.IMemento;
  24 import org.eclipse.ui.ISharedImages;
  25 import org.eclipse.ui.PlatformUI;
  26 import org.eclipse.ui.navigator.ICommonContentExtensionSite;
  27 import org.eclipse.ui.navigator.ICommonLabelProvider;
  28 import org.osgi.framework.Bundle;
  29
  30 /**
  31  * <b><u>TmfNavigatorLabelProvider</u></b>
  32  * <p>
  33  */
  34 public class TmfNavigatorLabelProvider implements ICommonLabelProvider {
  35
  36     // ------------------------------------------------------------------------
  37     // Constants
  38     // ------------------------------------------------------------------------
  39
  40     private static final Image fFolderIcon = PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER);
  41     private static final String fTraceIconFile = "icons/elcl16/trace.gif"; //$NON-NLS-1$
  42     private static final String fExperimentIconFile = "icons/elcl16/experiment.gif"; //$NON-NLS-1$
  43
  44     // ------------------------------------------------------------------------
  45     // Attributes
  46     // ------------------------------------------------------------------------
  47
  48     private final Image fTraceFolderIcon = fFolderIcon;
  49     private final Image fExperimentFolderIcon = fFolderIcon;
  50
  51     private final Image fDefaultTraceIcon;
  52     private final Image fExperimentIcon;
  53
  54     // ------------------------------------------------------------------------
  55     // Constructors
  56     // ------------------------------------------------------------------------
  57
  58     public TmfNavigatorLabelProvider() {
  59         Bundle bundle = TmfUiPlugin.getDefault().getBundle();
  60         fDefaultTraceIcon = loadIcon(bundle, fTraceIconFile);
  61         fExperimentIcon = loadIcon(bundle, fExperimentIconFile);
  62     }
  63
  64     private Image loadIcon(Bundle bundle, String url) {
  65         TmfUiPlugin plugin = TmfUiPlugin.getDefault();
  66         String key = bundle.getSymbolicName() + "/" + url; //$NON-NLS-1$
  67         Image icon = plugin.getImageRegistry().get(key);
  68         if (icon == null) {
  69             URL imageURL = bundle.getResource(url);
  70             ImageDescriptor descriptor = ImageDescriptor.createFromURL(imageURL);
  71             icon = descriptor.createImage();
  72             plugin.getImageRegistry().put(key, icon);
  73         }
  74         return icon;
  75     }
  76
  77     // ------------------------------------------------------------------------
  78     // ICommonLabelProvider
  79     // ------------------------------------------------------------------------
  80
  81     @Override
  82     public Image getImage(Object element) {
  83
  84         if (element instanceof TmfTraceElement) {
  85             TmfTraceElement trace = (TmfTraceElement) element;
  86             String icon = null;
  87             try {
  88                 String name = trace.getResource().getPersistentProperty(TmfTraceElement.TRACEBUNDLE);
  89                 icon = trace.getResource().getPersistentProperty(TmfTraceElement.TRACEICON);
  90                 if (name != null && icon != null) {
  91                     Bundle bundle = Platform.getBundle(name);
  92                     return loadIcon(bundle, icon);
  93                 }
  94             } catch (CoreException e) {
  95             }
  96             return fDefaultTraceIcon;
  97         }
  98
  99         if (element instanceof TmfExperimentElement)
 100             return fExperimentIcon;
 101
 102         if (element instanceof TmfExperimentFolder)
 103             return fExperimentFolderIcon;
 104
 105         if (element instanceof TmfTraceFolder)
 106             return fTraceFolderIcon;
 107
 108         return null;
 109     }
 110
 111     @Override
 112     public String getText(Object element) {
 113
 114         if (element instanceof TmfTraceFolder) {
 115             TmfTraceFolder folder = (TmfTraceFolder) element;
 116             return folder.getName() + " [" + folder.getTraces().size() + "]"; //$NON-NLS-1$//$NON-NLS-2$
 117         }
 118
 119         if (element instanceof TmfExperimentElement) {
 120             TmfExperimentElement folder = (TmfExperimentElement) element;
 121             return folder.getName() + " [" + folder.getTraces().size() + "]"; //$NON-NLS-1$//$NON-NLS-2$
 122         }
 123
 124         if (element instanceof TmfExperimentFolder) {
 125             TmfExperimentFolder folder = (TmfExperimentFolder) element;
 126             return folder.getName() + " [" + folder.getChildren().size() + "]"; //$NON-NLS-1$//$NON-NLS-2$
 127         }
 128
 129         // Catch all
 130         if (element instanceof ITmfProjectModelElement) {
 131             return ((ITmfProjectModelElement) element).getName();
 132         }
 133
 134         return null;
 135     }
 136
 137     @Override
 138     public void addListener(ILabelProviderListener listener) {
 139     }
 140
 141     @Override
 142     public void dispose() {
 143     }
 144
 145     @Override
 146     public boolean isLabelProperty(Object element, String property) {
 147         return false;
 148     }
 149
 150     @Override
 151     public void removeListener(ILabelProviderListener listener) {
 152     }
 153
 154     @Override
 155     public void restoreState(IMemento aMemento) {
 156     }
 157
 158     @Override
 159     public void saveState(IMemento aMemento) {
 160     }
 161
 162     @Override
 163     public String getDescription(Object anElement) {
 164         return getText(anElement);
 165     }
 166
 167     @Override
 168     public void init(ICommonContentExtensionSite aConfig) {
 169     }
 170
 171 }