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

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2012 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.linuxtools.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.linuxtools.internal.tmf.ui.Activator;
  20 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage;
  21 import org.eclipse.swt.graphics.Image;
  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     protected Image fImage = null;
  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     /*
  76      * (non-Javadoc)
  77      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#getImage()
  78      */
  79     @Override
  80     public Object getImage() {
  81         return fImage;
  82     }
  83
  84     /*
  85      * (non-Javadoc)
  86      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#dispose()
  87      */
  88     @Override
  89     public void dispose() {
  90         if (fImage != null) {
  91             fImage.dispose();
  92         }
  93     }
  94
  95     /**
  96      * Returns Image object from file name.
  97      *
  98      * @param name File name of image file
  99      * @return image object or <code>null</code>
 100      */
 101     private static Image createResourceImage(String name) {
 102         try {
 103             URL BASIC_URL = new URL("platform", "localhost", "plugin");//$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 104             URL url = new URL(BASIC_URL, "plugin/org.eclipse.linuxtools.tmf.ui/icons/" + name);//$NON-NLS-1$
 105             ImageDescriptor img = ImageDescriptor.createFromURL(url);
 106             return img.createImage();
 107         } catch (MalformedURLException e) {
 108             Activator.getDefault().logError("Error opening image file", e);  //$NON-NLS-1$
 109         }
 110         return null;
 111     }
 112
 113 }