@Override
	public Component getFocusComponent() {
		if (isFilterEditable) {
			return tree.getFilterField();
		}
		return null; // the tree will get the default focus
	}
Sets the filter provider on the tree used by this dialog
@param provider the filter provider
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/util/DataTypeChooserDialog.java