Bug 282875 [UI] Allow parts of models to be rendered
We need to change the rendering protocol to allow a 'createGui' to specify the container it should be created under (in SWT-land this would be a Composite). This is necessary to facilitate unit tests and to allow the ad-hoc rendering of chunks of a model within an arbitrary container (i.e. a Dialog or Wizard). In order to do this we'll have to make an API change to the PartFactory's 'createWidget' so that it will get the parent container as a parameter. In order to 'upgrade' an existing PartFactory you would simply replace the code you're currently using to find the correct container with the new parameter's value.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/renderers/PartRenderer.java
}
	};
	private final IContributionFactory contributionFactory;
	private final IEclipseContext context;
	public PartRenderer(IContributionFactory contributionFactory, IEclipseContext context) {
		this.contributionFactory = contributionFactory;
		this.context = context;
	}
	public void addPartFactory(PartFactory factory) {
		partFactories.add(factory);
	}
	public Object createGui(MPart element) {
		
		installLifeCycleHooks(element);
		if (!element.isVisible())
			return null;
		
		Object newWidget = createWidget(element);
		
		if (newWidget != null) {
			
			element.setWidget(newWidget);
			
			
			PartFactory factory = getFactoryFor(element);
			factory.bindWidget(element, newWidget);
			hookControllerLogic(element);
			factory.processContents(element);
			factory.postProcess(element);