Bug 79909 [JFace] Localized resource registries for JFace
Please provide improved JFace support for managing SWT resources, with the following properties: - A registry can allocate and deallocate SWT resources given a descriptor - Resources are reference-counted and shared, allowing different objects with equivalent descriptors to share resources. - Everything in the registry can be deallocated with one function call - The registry should support an open-ended set of resources (and should initially support, at minimum, Images, Fonts, Colors) - It should be possible to create a "local registry" that behaves like a regular registry but actually shares its resources with a global registry. For example, the workbench could offer a local registry as a service to views and editors. This would allow views and editors to safely allocate and deallocate SWT resources without any chance of leaking.
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/JFaceResources.java
if (fontRegistry == null) {
            fontRegistry = new FontRegistry(
                    "org.eclipse.jface.resource.jfacefonts"); 
        }
        return fontRegistry;
    }
    /**
     * Returns the JFace's header font.
     * Convenience method equivalent to
     * <pre>
     * JFaceResources.getFontRegistry().get(JFaceResources.HEADER_FONT)
     * </pre>
     *
     * @return the font
     */
    public static Font getHeaderFont() {
        return getFontRegistry().get(HEADER_FONT);
    }
    /**
     * Returns the image in JFace's image registry with the given key, 
     * or <code>null</code> if none.
     * Convenience method equivalent to
     * <pre>
     * JFaceResources.getImageRegistry().get(key)
     * </pre>
     *
     * @param key the key
     * @return the image, or <code>null</code> if none
     */
    public static Image getImage(String key) {