class RatingColumnCustomComponent    : public Component,
                                           public ComboBoxListener
    {
    public:
        RatingColumnCustomComponent (TableDemoComponent& owner_)
            : owner (owner_)
        {
            // just put a combo box inside this component
            addAndMakeVisible (comboBox = new ComboBox (String::empty));
            comboBox->addItem (T("fab"), 1);
            comboBox->addItem (T("groovy"), 2);
            comboBox->addItem (T("hep"), 3);
            comboBox->addItem (T("neat"), 4);
            comboBox->addItem (T("wild"), 5);
            comboBox->addItem (T("swingin"), 6);
            comboBox->addItem (T("mad for it"), 7);

            // when the combo is changed, we'll get a callback.
            comboBox->addListener (this);
            comboBox->setWantsKeyboardFocus (false);
        }

        ~RatingColumnCustomComponent()
        {
            deleteAllChildren();
        }

        void resized()
        {
            comboBox->setBoundsInset (BorderSize (2));
        }

        // Our demo code will call this when we may need to update our contents
        void setRowAndColumn (const int newRow, const int newColumn)
        {
            row = newRow;
            columnId = newColumn;
            comboBox->setSelectedId (owner.getRating (row, columnId), true);
        }

        void comboBoxChanged (ComboBox* comboBoxThatHasChanged)
        {
            owner.setRating (row, columnId, comboBox->getSelectedId());
        }

    private:
        TableDemoComponent& owner;
        ComboBox* comboBox;
        int row, columnId;
    };