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/StackModelFactory.java
CTabItem cti = findItemForPart(part.getParent(), part);
		cti.setControl(ctrl);
		ToolBar tb = getToolbar(part);
		if (tb != null) {
			Control curTR = ctf.getTopRight();
			if (curTR != null)
				curTR.dispose();
			if (tb.getSize().y > ctf.getTabHeight())
				ctf.setTabHeight(tb.getSize().y);
			ctf.setTopRight(tb, SWT.RIGHT);
			ctf.layout(true);
			
			
			
			
			
			
			
			
			
			ctf.notifyListeners(SWT.Resize, null);
		}
	}
	private ToolBar getToolbar(MItemPart<?> part) {
		if (part.getToolBar() == null && part.getMenu() == null)
			return null;
		CTabFolder ctf = (CTabFolder) getParentWidget(part);
		ToolBar tb;
		MToolBar tbModel = part.getToolBar();
		if (tbModel != null) {