public void setHighlightActiveLine(final boolean highlightActiveLine) {
        this.highlightActiveLineDirty = true;
        this.highlightActiveLine = highlightActiveLine;
        updateHighlightActiveLine();
    }
@param lineNo One based
@param colNo  One based
stroom-core-client-widget/src/main/java/stroom/editor/client/view/Editor.java