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.core.runtime.IStatus;
  20 import org.eclipse.core.runtime.Status;
  21 import org.eclipse.jface.resource.ImageDescriptor;
  22 import org.eclipse.linuxtools.internal.tmf.ui.TmfUiPlugin;
  23 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage;
  24 import org.eclipse.swt.graphics.Image;
  25
  26 /**
  27  * Default implementation of the IImage interface.
  28  *
  29  * @version 1.0
  30  * @author sveyrier
  31  *
  32  */
  33 public class ImageImpl implements IImage {
  34
  35     // ------------------------------------------------------------------------
  36     // Attributes
  37     // ------------------------------------------------------------------------
  38
  39     /**
  40      * The image reference
  41      */
  42     protected Image fImage = null;
  43
  44     // ------------------------------------------------------------------------
  45     // Constructors
  46     // ------------------------------------------------------------------------
  47     /**
  48      * Default constructor.
  49      *
  50      * @param file A file name of image file.
  51      */
  52     public ImageImpl(String file) {
  53         fImage = createResourceImage(file);
  54     }
  55
  56     /**
  57      * Copy constructor
  58      *
  59      * @param image THe image to copy
  60      */
  61     public ImageImpl(Image image) {
  62         fImage = image;
  63     }
  64
  65     // ------------------------------------------------------------------------
  66     // Methods
  67     // ------------------------------------------------------------------------
  68     /**
  69      * Returns Image object from file name.
  70      *
  71      * @param name File name of image file
  72      * @return image object or <code>null</code>
  73      */
  74     public Image getResourceImage(String name) {
  75         return createResourceImage(name);
  76     }
  77
  78     /*
  79      * (non-Javadoc)
  80      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#getImage()
  81      */
  82     @Override
  83     public Object getImage() {
  84         return fImage;
  85     }
  86
  87     /*
  88      * (non-Javadoc)
  89      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#dispose()
  90      */
  91     @Override
  92     public void dispose() {
  93         if (fImage != null) {
  94             fImage.dispose();
  95         }
  96     }
  97
  98     /**
  99      * Returns Image object from file name.
 100      *
 101      * @param name File name of image file
 102      * @return image object or <code>null</code>
 103      */
 104     private Image createResourceImage(String name) {
 105         try {
 106             URL BASIC_URL = new URL("platform", "localhost", "plugin");//$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 107             URL url = new URL(BASIC_URL, "plugin/org.eclipse.linuxtools.tmf.ui/icons/" + name);//$NON-NLS-1$
 108             ImageDescriptor img = ImageDescriptor.createFromURL(url);
 109             return img.createImage();
 110         } catch (MalformedURLException e) {
 111             TmfUiPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, TmfUiPlugin.PLUGIN_ID, "Error opening image file", e));  //$NON-NLS-1$
 112         }
 113         return null;
 114     }
 115
 116 }