Graphical Modeling Framework Runtime - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 456

10.5.6 RenderedImageFactory
Identifier: org.eclipse.gmf.runtime.draw2d.ui.render.
renderedImageFactory
Description: This extension-point defines an image type to allow autodetec-
tion of an image buffer. The image type can instantiate a RenderedImage ,
which can subsequently be rendered using the ScalableImageFigure class. In
the extension-point, the client points to a factory class that is created imple-
menting the RenderedImageType interface. The RenderedImageFactory
static class calls the extension-point to compile a list of image types to query.
When the client calls the RenderedImageFactory to retrieve the proper
RenderedImage , it asks each type whether it can handle the particular image
buffer. If the type autodetects the image buffer, the type instantiates and returns
a RenderedImage object.
Configuration markup:
<!ELEMENT extension (factory)>
<!ELEMENT factory EMPTY>
<!ATTLIST factory
class CDATA #REQUIRED>
class —Name of the image factory, such as the provided org.eclipse.
gmf.runtime.draw2d.ui.render.factory.RenderedImageFactory .
Examples:
An extension to the renderedImageFactory would require implementa-
tion of the RenderedImageType interface. The following is an example contri-
bution to the renderedImageFactory extension, as found in the runtime
plug-in org.eclipse.gmf.runtime.draw2d.ui.render.awt :
<extension
point="org.eclipse.gmf.runtime.draw2d.ui.render.
renderedImageFactory">
<factory
class="org.eclipse.gmf.runtime.draw2d.ui.render.awt.
internal.svg.SVGImageType">
</factory>
</extension>
API information:
For API information, see the classes and interfaces defined in the org.
eclipse.gmf.runtime.draw2d.ui.render and org.eclipse.gmf.run-
time.draw2d.ui.render.factory packages.