Bug 283442 [UI] Refactor the rendering class names
In order to bring the model closer to the way in which we talk about it we should re-factor it to remove references to 'factory'. For now the re-factoring will to replace 'PartRenderer' with 'PartRenderingEngine' and to replace '<xxx>Factory' with '<xxx>Renderer'. Post 0.9 we expect to change these again but this will make the initial story clearer.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/TrimPartFactory.java
@Override
	public <P extends MPart<?>> void processContents(MPart<P> me) {
		if (!(me instanceof MTrimmedPart<?>))
			return;
		MTrimmedPart<?> trimModel = (MTrimmedPart<?>) me;
		
		
		Composite clientArea = (Composite) me.getWidget();
		Composite trimmedComp = clientArea.getParent();
		TrimmedPartLayout layout = (TrimmedPartLayout) trimmedComp.getLayout();
		
		if (hasVisibleChildren(trimModel.getTopTrim())) {
			layout.top = createTrim(trimmedComp, SWT.HORIZONTAL, trimModel,
					trimModel.getTopTrim());
		}
		if (hasVisibleChildren(trimModel.getBottomTrim())) {
			layout.bottom = createTrim(trimmedComp, SWT.HORIZONTAL, trimModel,
					trimModel.getBottomTrim());
		}
		if (hasVisibleChildren(trimModel.getLeftTrim())) {
			layout.left = createTrim(trimmedComp, SWT.VERTICAL, trimModel,
					trimModel.getLeftTrim());
		}
		if (hasVisibleChildren(trimModel.getRightTrim())) {
			layout.right = createTrim(trimmedComp, SWT.VERTICAL, trimModel,
					trimModel.getRightTrim());
		}
		
		super.processContents(me);
	}