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#ifndef MODELMENU_H

#define MODELMENU_H

#include <QtGui/QMenu>

#include <QtCore/QAbstractItemModel>

// A QMenu that is dynamically populated from a QAbstractItemModel

class ModelMenu : public QMenu

{

    Q_OBJECT

signals:

    void activated(const QModelIndex &index);

    void hovered(const QString &text);

public:

    ModelMenu(QWidget *parent = 0);

    void setModel(QAbstractItemModel *model);

    QAbstractItemModel *model() const;

    void setMaxRows(int max);

    int maxRows() const;

    void setFirstSeparator(int offset);

    int firstSeparator() const;

    void setRootIndex(const QModelIndex &index);

    QModelIndex rootIndex() const;

    void setHoverRole(int role);

    int hoverRole() const;

    void setSeparatorRole(int role);

    int separatorRole() const;

    QAction *makeAction(const QIcon &icon, const QString &text, QObject *parent);

protected:

    // add any actions before the tree, return true if any actions are added.

    virtual bool prePopulated();

    // add any actions after the tree

    virtual void postPopulated();

    // put all of the children of parent into menu up to max

    void createMenu(const QModelIndex &parent, int max, QMenu *parentMenu = 0, QMenu *menu = 0);

private slots:

    void aboutToShow();

    void triggered(QAction *action);

    void hovered(QAction *action);

private:

    QAction *makeAction(const QModelIndex &index);

    int m_maxRows;

    int m_firstSeparator;

    int m_maxWidth;

    int m_hoverRole;

    int m_separatorRole;

    QAbstractItemModel *m_model;

    QPersistentModelIndex m_root;

};

#endif // MODELMENU_H