private AceEditorCursorPosition getCursorPositionImpl(final double row, final double column) {
        return new AceEditorCursorPosition((int) row, (int) column);
    }
Check if selection contains several lines.

@return true in case selection contains several lines
stroom-core-client-widget/src/main/java/edu/ycp/cs/dh/acegwt/client/ace/AceSelection.java