Java Code Examples for org.eclipse.jface.resource.JFaceResources#getImageRegistry()

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param bundle
 *            The target bundle
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @param force
 *            If True, still returns a dummy image if the path cannot be
 *            loaded.
 * @return The imgIcon represented by the given URL.
 * 
 * @see #setImageCached(boolean )
 */
public static Image getImage( Bundle bundle, String sPluginRelativePath,
		boolean force )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );

	String imgKey = sPluginRelativePath;
	if ( bundle != null )
	{
		imgKey = bundle.getSymbolicName( ) + ":" + sPluginRelativePath; //$NON-NLS-1$
	}

	Image image = registry.get( imgKey );
	if ( image == null )
	{
		image = createImage( bundle, sPluginRelativePath, force );
		if ( image != null )
		{
			registry.put( imgKey, image );
		}
	}
	return image;
}
 

private static void initializeImage(final String name, final String path) {
	final ImageRegistry imageRegistry = JFaceResources.getImageRegistry();
	if (imageRegistry.get(name) == null) {
		URL imageClockUrl = FileLocator.find(Activator.getDefault().getBundle(), new Path(path), null);
		if (imageClockUrl != null) {
			imageRegistry.put(name, ImageDescriptor.createFromURL(imageClockUrl));
		}
	}
}
 

/**
 * Returns the image for attribute and platform id. Image is cached by {@link JFaceResources}
 * {@link ImageRegistry}
 * 
 * @param attribute
 * @param id
 * @return
 */
public static Image getImageFor(String attribute, String id){
	String key = IMAGE_REG_BASE +attribute+id;
	ImageRegistry imageRegistry = JFaceResources.getImageRegistry();
	Image image = imageRegistry.get(key);
	if(image == null ){
		ImageDescriptor desc = getIconFor(attribute, id);
		if(desc == null ) return null;
		imageRegistry.put(key, getIconFor(attribute, id));
		image = imageRegistry.get(key);
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static Image getImage( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	Image image = registry.get( sPluginRelativePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( sPluginRelativePath, image );
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static Image getImage( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	Image image = registry.get( sPluginRelativePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( sPluginRelativePath, image );
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static ImageDescriptor getImageDescriptor( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	ImageDescriptor image = registry.getDescriptor( sPluginRelativePath );
	if ( image == null )
	{
		registry.put( sPluginRelativePath,
				createImage( sPluginRelativePath ) );
		image = registry.getDescriptor( sPluginRelativePath );
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static Image getImage( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	String resourcePath = ChartUIPlugin.ID + "/" + sPluginRelativePath; //$NON-NLS-1$
	Image image = registry.get( resourcePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( resourcePath, image );
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @throws IOException
 * @see #setImageCached(boolean )
 */
public static Image getImage( String sPluginRelativePath )
		throws IOException
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	Image image = registry.get( sPluginRelativePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( sPluginRelativePath, image );
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static Image getImage( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	Image image = registry.get( sPluginRelativePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( sPluginRelativePath, image );
	}
	return image;
}
 

public static Image getImage( String imgKey, ImageDescriptor descriptor )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	Image image = registry.get( imgKey );
	if ( image == null )
	{
		image = descriptor.createImage( );
		if ( image != null )
		{
			registry.put( imgKey, image );
		}
	}
	return image;
}
 

/**
 * This is a convenience method to get an imgIcon from a URL.
 * 
 * @param sPluginRelativePath
 *            The URL for the imgIcon.
 * @return The imgIcon represented by the given URL.
 * @see #setImageCached( boolean )
 */
public static Image getImage( String sPluginRelativePath )
{
	ImageRegistry registry = JFaceResources.getImageRegistry( );
	String resourcePath = CoreUIPlugin.ID + "/" + sPluginRelativePath; //$NON-NLS-1$
	Image image = registry.get( resourcePath );
	if ( image == null )
	{
		image = createImage( sPluginRelativePath );
		registry.put( resourcePath, image );
	}
	return image;
}
 

private static void registerImageDescriptor(String key, ImageDescriptor descriptor) {
	ImageRegistry imageRegistry = JFaceResources.getImageRegistry();
	imageRegistry.put(key, descriptor);
}
 

/**
 * If the enabled/disabled checked/unchecked checkbox <code>Image</code>s
 * have not already been created and added to the JFace
 * <code>ImageRegistry</code>, this method generates and registers them.
 * This produces platform-specific images at run-time.
 * 
 * @param display
 *            The <code>Display</code> shared with the underlying
 *            <code>ColumnViewer</code>.
 * @param background
 *            The background of the <code>ColumnViewer</code>'s cells.
 */
private static void registerImages(final Display display, Color background) {

	if (display != null && IMAGES_REGISTERED.compareAndSet(false, true)) {

		// Get the ImageRegistry for JFace images. We will load up images
		// for each combination of checkbox enabled/disabled and
		// checked/unchecked.
		ImageRegistry jfaceImages = JFaceResources.getImageRegistry();

		// Create a temporary shell and checkbox Button to generate
		// platform-specific images of checkboxes.
		Shell shell = new Shell(display, SWT.NO_TRIM);
		Button checkbox = new Button(shell, SWT.CHECK);

		// Set the widget's background to the viewer's cell background.
		checkbox.setBackground(background);

		// Reduce the size of the shell to a square (checkboxes are supposed
		// to be square!!!).
		Point size = checkbox.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		// int width = Math.min(size.x, size.y);
		checkbox.setSize(size);
		// checkbox.setLocation(width - size.x, width - size.y);
		// shell.setSize(width, width);
		shell.setSize(size);

		// Open the shell to enable widget drawing.
		shell.open();

		// Create the enabled/unchecked image.
		jfaceImages.put(ENABLED_UNCHECKED, createImage(checkbox));
		// Create the enabled/checked image.
		checkbox.setSelection(true);
		jfaceImages.put(ENABLED_CHECKED, createImage(checkbox));
		// Create the disabled/checked image.
		checkbox.setEnabled(false);
		jfaceImages.put(DISABLED_CHECKED, createImage(checkbox));
		// Create the disabled/unchecked image.
		checkbox.setSelection(false);
		jfaceImages.put(DISABLED_UNCHECKED, createImage(checkbox));

		// Release any remaining resources.
		// gc.dispose();
		shell.close();
	}

	return;
}
 

/**
 * Returns the image from the image registry with the given key.
 * 
 * @param key
 *            of the image
 * @return the image from the image registry with the given key.
 */
public static Image getImage(String key) {
	ImageRegistry imageRegistry = JFaceResources.getImageRegistry();
	return imageRegistry.get(key);
}
 

/**
 * Returns the image descriptor from the image registry with the given key.
 * 
 * @param key
 *            of the image
 * @return the image descriptor from the image registry with the given key.
 */
public static ImageDescriptor getImageDescriptor(String key) {
	ImageRegistry imageRegistry = JFaceResources.getImageRegistry();
	return imageRegistry.getDescriptor(key);
}