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

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2008 IBM Corporation and others.
   3  * Copyright (c) 2011, 2012 Ericsson.
   4  *
   5  * All rights reserved.   This program and the accompanying materials
   6  * are made available under the terms of the Eclipse Public License v1.0
   7  * which accompanies this distribution, and is available at
   8  * http://www.eclipse.org/legal/epl-v10.html
   9  *
  10  * Contributors:
  11  * IBM - Initial API and implementation
  12  * Bernd Hufmann - Updated for TMF
  13  **********************************************************************/
  14 package org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.impl;
  15
  16 import java.net.MalformedURLException;
  17 import java.net.URL;
  18
  19 import org.eclipse.jface.resource.ImageDescriptor;
  20 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  21 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage;
  22 import org.eclipse.swt.graphics.Image;
  23
  24 /**
  25  * Default implementation of the IImage interface.
  26  *
  27  * @version 1.0
  28  * @author sveyrier
  29  *
  30  */
  31 public class ImageImpl implements IImage {
  32
  33     // ------------------------------------------------------------------------
  34     // Attributes
  35     // ------------------------------------------------------------------------
  36
  37     /**
  38      * The image reference
  39      */
  40     protected Image fImage = null;
  41
  42     // ------------------------------------------------------------------------
  43     // Constructors
  44     // ------------------------------------------------------------------------
  45     /**
  46      * Default constructor.
  47      *
  48      * @param file A file name of image file.
  49      */
  50     public ImageImpl(String file) {
  51         fImage = createResourceImage(file);
  52     }
  53
  54     /**
  55      * Copy constructor
  56      *
  57      * @param image THe image to copy
  58      */
  59     public ImageImpl(Image image) {
  60         fImage = image;
  61     }
  62
  63     // ------------------------------------------------------------------------
  64     // Methods
  65     // ------------------------------------------------------------------------
  66     /**
  67      * Returns Image object from file name.
  68      *
  69      * @param name File name of image file
  70      * @return image object or <code>null</code>
  71      */
  72     public Image getResourceImage(String name) {
  73         return createResourceImage(name);
  74     }
  75
  76     /*
  77      * (non-Javadoc)
  78      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#getImage()
  79      */
  80     @Override
  81     public Object getImage() {
  82         return fImage;
  83     }
  84
  85     /*
  86      * (non-Javadoc)
  87      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#dispose()
  88      */
  89     @Override
  90     public void dispose() {
  91         if (fImage != null) {
  92             fImage.dispose();
  93         }
  94     }
  95
  96     /**
  97      * Returns Image object from file name.
  98      *
  99      * @param name File name of image file
 100      * @return image object or <code>null</code>
 101      */
 102     private static Image createResourceImage(String name) {
 103         try {
 104             URL BASIC_URL = new URL("platform", "localhost", "plugin");//$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 105             URL url = new URL(BASIC_URL, "plugin/org.eclipse.linuxtools.tmf.ui/icons/" + name);//$NON-NLS-1$
 106             ImageDescriptor img = ImageDescriptor.createFromURL(url);
 107             return img.createImage();
 108         } catch (MalformedURLException e) {
 109             Activator.getDefault().logError("Error opening image file", e);  //$NON-NLS-1$
 110         }
 111         return null;
 112     }
 113
 114 }