/******************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
******************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the QtDataVisualization API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef COLORGRADIENT_P_H
#define COLORGRADIENT_P_H

#include "datavisualizationglobal_p.h"
#include <QtGui/QColor>
#include <QtQml/QQmlListProperty>

QT_BEGIN_NAMESPACE_DATAVISUALIZATION

class ColorGradientStop : public QObject
{
    Q_OBJECT

    Q_PROPERTY(qreal position READ position WRITE setPosition NOTIFY positionChanged)
    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)

public:
    ColorGradientStop(QObject *parent = 0);

    qreal position() const;
    void setPosition(qreal position);

    QColor color() const;
    void setColor(const QColor &color);

Q_SIGNALS:
    void positionChanged(qreal position);
    void colorChanged(QColor color);

private:
    void updateGradient();

private:
    qreal m_position;
    QColor m_color;
};

class ColorGradient : public QObject
{
    Q_OBJECT

    Q_PROPERTY(QQmlListProperty<ColorGradientStop> stops READ stops)
    Q_CLASSINFO("DefaultProperty", "stops")

public:
    ColorGradient(QObject *parent = 0);
    ~ColorGradient();

    QQmlListProperty<ColorGradientStop> stops();

    void doUpdate();
    QList<ColorGradientStop *> m_stops;

Q_SIGNALS:
    void updated();
};

QT_END_NAMESPACE_DATAVISUALIZATION

#endif
