private void updateUseSnippets() {
        if (editor.isAttached() && useSnippetsDirty) {
            editor.setSnippetsEnabled(useSnippets);
            useSnippetsDirty = false;
        }
    }
@param lineNo One based
@param colNo  One based
stroom-core-client-widget/src/main/java/stroom/editor/client/view/Editor.java