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     protected Image img = 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         img = getResourceImage(file);
  51     }
  52
  53     /**
  54      * Copy constructor
  55      *
  56      * @param img_ THe image to copy
  57      */
  58     public ImageImpl(Image img_) {
  59         img = img_;
  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         try {
  73             URL BASIC_URL = new URL("platform", "localhost", "plugin");//$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
  74             URL url = new URL(BASIC_URL, "plugin/org.eclipse.linuxtools.tmf.ui/icons/" + _name);//$NON-NLS-1$
  75             ImageDescriptor img = ImageDescriptor.createFromURL(url);
  76             return img.createImage();
  77         } catch (MalformedURLException e) {
  78             TmfUiPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, TmfUiPlugin.PLUGIN_ID, "Error opening image file", e));  //$NON-NLS-1$
  79         }
  80         return null;
  81     }
  82
  83     /*
  84      * (non-Javadoc)
  85      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#getImage()
  86      */
  87     @Override
  88     public Object getImage() {
  89         return img;
  90     }
  91
  92     /*
  93      * (non-Javadoc)
  94      * @see org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IImage#dispose()
  95      */
  96     @Override
  97     public void dispose() {
  98         if (img != null) {
  99             img.dispose();
 100         }
 101     }
 102 }