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/PartFactory.java
}
		return result;
	}
	/**
	 * Activate the part in the hierarchy. This should either still be internal or be a public
	 * method somewhere else.
	 * 
	 * @param part
	 */
	public void activate(MPart<?> part) {
		MPart<MPart<?>> parent = (MPart<MPart<?>>) part.getParent();
		IEclipseContext partContext = part.getContext();
		while (parent != null) {
			IEclipseContext parentContext = parent.getContext();
			
			
			if (parentContext != null) {
				parentContext.set(IServiceConstants.ACTIVE_CHILD, partContext);
				partContext = parentContext;
			}
			if (parent.getActiveChild() != part)
				parent.setActiveChild(part);
			part = parent;
			parent = (MPart<MPart<?>>) parent.getParent();
		}
	}
	public void removeGui(MPart element, Object widget) {
	}
}