protected Dimension getDefaultCompletionWindowDimension() {
		if (focus == null) {
			return new Dimension(-1, -1);
		}
		return new Dimension(focus.getWidth(), -1);
	}
Get the preferred dimensions of the completion list window.

<p>
Typically, this is the width of the focused field.

@return the dimension giving the preferred height and width. A value can be -1 to indicate no
        preference.
Ghidra/Framework/Docking/src/main/java/docking/widgets/autocomplete/TextFieldAutocompleter.java