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#ifndef QTGRADIENTSTOPSMODEL_H

#define QTGRADIENTSTOPSMODEL_H

#include <QtCore/QObject>

#include <QtCore/QMap>

QT_BEGIN_NAMESPACE

class QColor;

class QtGradientStopsModel;

class QtGradientStop

{

public:

    qreal position() const;

    QColor color() const;

    QtGradientStopsModel *gradientModel() const;

private:

    void setColor(const QColor &color);

    void setPosition(qreal position);

    friend class QtGradientStopsModel;

    QtGradientStop(QtGradientStopsModel *model = 0);

    ~QtGradientStop();

    QScopedPointer<class QtGradientStopPrivate> d_ptr;

};

class QtGradientStopsModel : public QObject

{

    Q_OBJECT

public:

    typedef QMap<qreal, QtGradientStop *> PositionStopMap;

    QtGradientStopsModel(QObject *parent = 0);

    ~QtGradientStopsModel();

    PositionStopMap stops() const;

    QtGradientStop *at(qreal pos) const;

    QColor color(qreal pos) const; // calculated between points

    QList<QtGradientStop *> selectedStops() const;

    QtGradientStop *currentStop() const;

    bool isSelected(QtGradientStop *stop) const;

    QtGradientStop *firstSelected() const;

    QtGradientStop *lastSelected() const;

    QtGradientStopsModel *clone() const;

    QtGradientStop *addStop(qreal pos, const QColor &color);

    void removeStop(QtGradientStop *stop);

    void moveStop(QtGradientStop *stop, qreal newPos);

    void swapStops(QtGradientStop *stop1, QtGradientStop *stop2);

    void changeStop(QtGradientStop *stop, const QColor &newColor);

    void selectStop(QtGradientStop *stop, bool select);

    void setCurrentStop(QtGradientStop *stop);

    void moveStops(double newPosition); // moves current stop to newPos and all selected stops are moved accordingly

    void clear();

    void clearSelection();

    void flipAll();

    void selectAll();

    void deleteStops();

signals:

    void stopAdded(QtGradientStop *stop);

    void stopRemoved(QtGradientStop *stop);

    void stopMoved(QtGradientStop *stop, qreal newPos);

    void stopsSwapped(QtGradientStop *stop1, QtGradientStop *stop2);

    void stopChanged(QtGradientStop *stop, const QColor &newColor);

    void stopSelected(QtGradientStop *stop, bool selected);

    void currentStopChanged(QtGradientStop *stop);

private:

    QScopedPointer<class QtGradientStopsModelPrivate> d_ptr;

    Q_DECLARE_PRIVATE(QtGradientStopsModel)

    Q_DISABLE_COPY(QtGradientStopsModel)

};

QT_END_NAMESPACE

#endif