Image descriptors are objects that knows how to create an image on demand. They serve as a lightweight representation of images in situations where no SWT display exists yet, and are used mainly in conjunction with image registries. This package contains the image descriptor framework, which is a simple hierarchy rooted at the abstract class ImageDescriptor. The framework includes abstract subclasses for composing images (CompositeImageDescriptor) as well as a ready-made concrete subclass for loading images from files (FileImageDescriptor).
The class JFaceResources maintains global state on behalf of
JFace itself consisting of JFace's own image registry, font registry, resource
bundle, and preference store.