Examples of org.eclipse.jface.resource.ImageRegistry

org.eclipse.jface.resource.ImageRegistry
An image registry maintains a mapping between symbolic image names and SWT image objects or special image descriptor objects which defer the creation of SWT image objects until they are needed.
An image registry owns all of the image objects registered with it, and automatically disposes of them when the SWT Display that creates the images is disposed. Because of this, clients do not need to (indeed, must not attempt to) dispose of these images themselves.

Clients may instantiate this class (it was not designed to be subclassed).

Unlike the FontRegistry, it is an error to replace images. As a result there are no events that fire when values are changed in the registry
@noextend This class is not intended to be subclassed by clients.

    }
    return registry.get(path);
  }


  public static ImageDescriptor getSharedDescriptor(String path) {
    ImageRegistry registry = getDefault().getImageRegistry();
    ImageDescriptor image_descriptor = registry.getDescriptor(path);
    if (image_descriptor == null) {
      image_descriptor = getImageDescriptor(path);
      registry.put(path, image_descriptor);
    }
    return image_descriptor;
  }

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    return image_descriptor;
  }


  public static Image getSharedImage(String pluginId, String path) {
    String iconKey = pluginId + path;
    ImageRegistry registry = getDefault().getImageRegistry();
    ImageDescriptor image_descriptor = registry.getDescriptor(iconKey);
    if (image_descriptor == null) {
      Bundle bundle = Platform.getBundle(pluginId);
      image_descriptor = ImageDescriptor.createFromURL(bundle.getResource(path));
      registry.put(iconKey, image_descriptor);
    }
    return registry.get(iconKey);
  }

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     * @return the image descriptor
     */
    public static ImageDescriptor getImageDescriptor(String path) {


        DroolsEclipsePlugin plugin = getDefault();
        ImageRegistry reg = plugin.getImageRegistry();
        ImageDescriptor des = reg.getDescriptor( path );
        if ( des == null ) {
            des = AbstractUIPlugin.imageDescriptorFromPlugin( "org.drools.eclipse",
                                                              path );
            reg.put( path,
                     des );
        }
        return des;
    }

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     */
    protected ImageRegistry createImageRegistry() {
      
      //If we are in the UI Thread use that
      if(Display.getCurrent() != null) {
      return new ImageRegistry(Display.getCurrent());
    }
      
      if(PlatformUI.isWorkbenchRunning()) {
      return new ImageRegistry(PlatformUI.getWorkbench().getDisplay());
    }
      
      //Invalid thread access if it is not the UI Thread 
      //and the workbench is not created.
      throw new SWTError(SWT.ERROR_THREAD_INVALID_ACCESS);

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     *      The images are declared using this.getClass() to ensure they are looked up via
     *      this plugin class.
     *  @see ImageRegistry
     */
    private static void initializeImageRegistry() {
        imageRegistry = new ImageRegistry();
        descriptors = new HashMap();
        declareImages();
    }

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  }


  public static synchronized ImageRegistry getImageRegistry() {
    if (Activator.getDefault() == null) {
            if (imageRegistry == null) {
                imageRegistry = new ImageRegistry();
                initImageRegistry(imageRegistry);
            }
            return imageRegistry;
    }
    return Activator.getDefault().getImageRegistry();

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  protected ImageDescriptor getImageDescriptor(String key) {
    return loadImage(key).getDescriptor(key);
  }


  protected ImageRegistry loadImage(String path) {
    ImageRegistry reg = getActivator().getImageRegistry();
    if (reg.getDescriptor(path) == null) {
      URL url = getActivator().getBundle().getEntry(path);
      reg.put(path, ImageDescriptor.createFromURL(url));
    }
    return reg;
  }

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        //enable the save/restore windows size & position feature
        configurer.setSaveAndRestore( true );


        //enable help button in dialogs 
        TrayDialog.setDialogHelpAvailable( true );
        ImageRegistry reg = JFaceResources.getImageRegistry();
        ImageDescriptor helpImage = PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(
            ISharedImages.IMG_LCL_LINKTO_HELP );
        reg.put( Dialog.DLG_IMG_HELP, helpImage );
    }

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     * @return the image descriptor
     */
    public static ImageDescriptor getImageDescriptor(String path) {


        DroolsEclipsePlugin plugin = getDefault();
        ImageRegistry reg = plugin.getImageRegistry();
        ImageDescriptor des = reg.getDescriptor( path );
        if ( des == null ) {
            des = AbstractUIPlugin.imageDescriptorFromPlugin( "org.drools.eclipse",
                                                              path );
            reg.put( path,
                     des );
        }
        return des;
    }

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   * 
   * @return The imageRegistry.
   */
  private ImageRegistry createImageRegistry() {


    ImageRegistry registry = new ImageRegistry(this.getDisplay());


    String opId = "Delete"; //$NON-NLS-1$
    String imgFile = "image/delete.gif"; //$NON-NLS-1$ 
    registry.put(opId, ImageDescriptor.createFromFile(CoordinateTableComposite.class, imgFile));


    opId = "Add"; //$NON-NLS-1$
    imgFile = "image/add.png"; //$NON-NLS-1$ 
    registry.put(opId, ImageDescriptor.createFromFile(CoordinateTableComposite.class, imgFile));


    opId = "Move"; //$NON-NLS-1$
    imgFile = "image/movemarker.png"; //$NON-NLS-1$ 
    registry.put(opId, ImageDescriptor.createFromFile(CoordinateTableComposite.class, imgFile));


    opId = "DeleteAll"; //$NON-NLS-1$
    imgFile = "image/deleteAll.gif"; //$NON-NLS-1$ 
    registry.put(opId, ImageDescriptor.createFromFile(CoordinateTableComposite.class, imgFile));


    return registry;
  }

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