Package org.eclipse.jface.resource
Provides support for managing resources such as SWT
fonts and images.
Package Specification
This package contains support for managing resources, including:-
font registries (
FontRegistry
) - for hanging on to the SWT font objects needed by an application -
color registries (
ColorRegistry
) - for hanging on to the SWT color objects needed by an application -
image registries (
ImageRegistry
) - for hanging on to the SWT image objects needed by an application -
image descriptors (
ImageDescriptor
) - surrogate object for creating SWT images -
string conversion (
StringConverter
) - for parsing property files
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.
-
Class Summary Class Description ColorDescriptor Lightweight descriptor for an SWT color.ColorRegistry A color registry maintains a mapping between symbolic color names and SWTColor
s.CompositeImageDescriptor Abstract base class for image descriptors that synthesize an image from other images in order to simulate the effect of custom drawing.DeviceResourceDescriptor Instances of this class can allocate and dispose SWT resources.DeviceResourceManager Manages SWT resources for a particular device.FontDescriptor Lightweight descriptor for a font.FontRegistry A font registry maintains a mapping between symbolic font names and SWT fonts.ImageDescriptor An image descriptor is an object that knows how to create an SWT image.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.JFaceColors JFaceColors is the class that stores references to all of the colors used by JFace.JFaceResources Utility methods to access JFace-specific resources.LazyResourceManager A LRU based ResourceManager Wrapper.LocalResourceManager A local registry that shares its resources with some global registry.ResourceLocator This class contains a collection of helper methods for finding JFace resources in bundles.ResourceManager This class manages SWT resources.ResourceRegistry Abstract base class for various JFace registries.StringConverter Helper class for converting various data types to and from strings. -
Exception Summary Exception Description DataFormatException An exception indicating that a string value could not be converted into the requested data type.DeviceResourceException Thrown when allocation of an SWT device resource fails