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.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/PartSashFactory.java
if (ctrlWeights.length == modelWeights.size()) {
			
			
			boolean overWrite = false;
			int i = 0;
			for (Iterator<Integer> weightIter = modelWeights.iterator(); weightIter
					.hasNext();) {
				Integer integer = weightIter.next();
				if (integer.intValue() != ctrlWeights[i++]) {
					overWrite = true;
					break;
				}
			}
			if (overWrite) {
				
				int[] weights = new int[modelWeights.size()];
				for (i = 0; i < weights.length; i++) {
					weights[i] = modelWeights.get(i);
				}
				sf.setWeights(weights);
			}
		}
	}
	protected void synchWeights(Control ctrl) {
		if (!(ctrl.getParent() instanceof SashForm))