org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/uml2sd/drawings/impl/ImageImpl.java

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2015 IBM Corporation, Ericsson
   3  * All rights reserved.   This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM - Initial API and implementation
  10  *     Bernd Hufmann - Updated for TMF
  11  **********************************************************************/
  12
  13 package org.eclipse.tracecompass.tmf.ui.views.uml2sd.drawings.impl;
  14
  15 import java.net.MalformedURLException;
  16 import java.net.URL;
  17
  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.tracecompass.tmf.ui.views.uml2sd.drawings.IImage;
  22
  23 /**
  24  * Default implementation of the IImage interface.
  25  *
  26  * @version 1.0
  27  * @author sveyrier
  28  *
  29  */
  30 public class ImageImpl implements IImage {
  31
  32     // ------------------------------------------------------------------------
  33     // Attributes
  34     // ------------------------------------------------------------------------
  35
  36     /**
  37      * The image reference
  38      */
  39     private final Image fImage;
  40
  41     // ------------------------------------------------------------------------
  42     // Constructors
  43     // ------------------------------------------------------------------------
  44     /**
  45      * Default constructor.
  46      *
  47      * @param file A file name of image file.
  48      */
  49     public ImageImpl(String file) {
  50         fImage = createResourceImage(file);
  51     }
  52
  53     /**
  54      * Copy constructor
  55      *
  56      * @param image THe image to copy
  57      */
  58     public ImageImpl(Image image) {
  59         fImage = image;
  60     }
  61
  62     // ------------------------------------------------------------------------
  63     // Methods
  64     // ------------------------------------------------------------------------
  65     /**
  66      * Returns Image object from file name.
  67      *
  68      * @param name File name of image file
  69      * @return image object or <code>null</code>
  70      */
  71     public Image getResourceImage(String name) {
  72         return createResourceImage(name);
  73     }
  74
  75     @Override
  76     public Object getImage() {
  77         return fImage;
  78     }
  79
  80     @Override
  81     public void dispose() {
  82         if (fImage != null) {
  83             fImage.dispose();
  84         }
  85     }
  86
  87     /**
  88      * Returns Image object from file name.
  89      *
  90      * @param name File name of image file
  91      * @return image object or <code>null</code>
  92      */
  93     private static Image createResourceImage(String name) {
  94         try {
  95             URL BASIC_URL = new URL("platform", "localhost", "plugin");//$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
  96             URL url = new URL(BASIC_URL, "plugin/org.eclipse.tracecompass.tmf.ui/icons/" + name);//$NON-NLS-1$
  97             ImageDescriptor img = ImageDescriptor.createFromURL(url);
  98             return img.createImage();
  99         } catch (MalformedURLException e) {
 100             Activator.getDefault().logError("Error opening image file", e);  //$NON-NLS-1$
 101         }
 102         return null;
 103     }
 104
 105 }