tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/project/model/TmfProjectModelIcons.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010, 2016 Ericsson, EfficiOS Inc. and others
   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
  10 package org.eclipse.tracecompass.tmf.ui.project.model;
  11
  12 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  13
  14 import java.net.URL;
  15
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.eclipse.jdt.annotation.Nullable;
  18 import org.eclipse.jface.resource.ImageDescriptor;
  19 import org.eclipse.swt.graphics.Image;
  20 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  21 import org.eclipse.ui.ISharedImages;
  22 import org.eclipse.ui.PlatformUI;
  23 import org.eclipse.ui.model.WorkbenchLabelProvider;
  24 import org.osgi.framework.Bundle;
  25
  26 /**
  27  * Facilities to load icons used in the Project View.
  28  *
  29  * @author Alexandre Montplaisir
  30  * @since 2.0
  31  */
  32 final class TmfProjectModelIcons {
  33
  34     private TmfProjectModelIcons() {}
  35
  36     public static final @NonNull Image DEFAULT_TRACE_ICON;
  37     public static final @NonNull Image DEFAULT_EXPERIMENT_ICON;
  38     public static final @NonNull Image DEFAULT_ANALYSIS_ICON;
  39     public static final @NonNull Image DEFAULT_VIEW_ICON;
  40
  41     public static final @NonNull Image FOLDER_ICON;
  42     public static final @NonNull Image VIEWS_ICON;
  43
  44     public static final WorkbenchLabelProvider WORKSPACE_LABEL_PROVIDER = new WorkbenchLabelProvider();
  45
  46     private static final String TRACE_ICON_FILE = "icons/elcl16/trace.gif"; //$NON-NLS-1$
  47     private static final String EXPERIMENT_ICON_FILE = "icons/elcl16/experiment.gif"; //$NON-NLS-1$
  48     private static final String ANALYSIS_ICON_FILE = "icons/ovr16/experiment_folder_ovr.png"; //$NON-NLS-1$
  49     private static final String VIEW_ICON_FILE = "icons/obj16/node_obj.gif"; //$NON-NLS-1$
  50
  51     // ------------------------------------------------------------------------
  52     // Initialization
  53     // ------------------------------------------------------------------------
  54
  55     static {
  56         ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
  57         FOLDER_ICON = checkNotNull(sharedImages.getImage(ISharedImages.IMG_OBJ_FOLDER));
  58         VIEWS_ICON = checkNotNull(sharedImages.getImage(ISharedImages.IMG_OBJ_ELEMENT));
  59
  60         Bundle bundle = Activator.getDefault().getBundle();
  61         DEFAULT_TRACE_ICON = checkNotNull(loadIcon(bundle, TRACE_ICON_FILE));
  62         DEFAULT_EXPERIMENT_ICON = checkNotNull(loadIcon(bundle, EXPERIMENT_ICON_FILE));
  63         DEFAULT_ANALYSIS_ICON = checkNotNull(loadIcon(bundle, ANALYSIS_ICON_FILE));
  64         DEFAULT_VIEW_ICON = checkNotNull(loadIcon(bundle, VIEW_ICON_FILE));
  65     }
  66
  67     public static @Nullable Image loadIcon(Bundle bundle, String url) {
  68         Activator plugin = Activator.getDefault();
  69         String key = bundle.getSymbolicName() + "/" + url; //$NON-NLS-1$
  70         Image icon = plugin.getImageRegistry().get(key);
  71         if (icon == null) {
  72             URL imageURL = bundle.getResource(url);
  73             ImageDescriptor descriptor = ImageDescriptor.createFromURL(imageURL);
  74             if (descriptor != null) {
  75                 icon = descriptor.createImage();
  76                 plugin.getImageRegistry().put(key, icon);
  77             }
  78         }
  79         return icon;
  80     }
  81 }