Bug 16923 Auto activation preference dialog
The auto activation characters and Timeout Text fields are enabled even when Auto activation itself is disabled. This was confusing to me because I thought that "." should cause automatic code assist, but it wasn't. Disabling the feature should disable the controls what modify the details for that feature.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
for (int i= 0; i < fSyntaxColorListModel.length; i++)
			fSyntaxColorList.add(fSyntaxColorListModel[i][0]);
			
		fSyntaxColorList.getDisplay().asyncExec(new Runnable() {
			public void run() {
				fSyntaxColorList.select(0);
				handleSyntaxColorListSelection();
			}
		});
		
		for (int i= 0; i < fAppearanceColorListModel.length; i++)
			fAppearanceColorList.add(fAppearanceColorListModel[i][0]);
			
		fAppearanceColorList.getDisplay().asyncExec(new Runnable() {
			public void run() {
				fAppearanceColorList.select(0);
				handleAppearanceColorListSelection();
			}
		});
		
	}
	
	private void initializeFields() {
		
		Iterator e= fColorButtons.keySet().iterator();
		while (e.hasNext()) {
			ColorEditor c= (ColorEditor) e.next();
			String key= (String) fColorButtons.get(c);
			RGB rgb= PreferenceConverter.getColor(fOverlayStore, key);
			c.setColorValue(rgb);