/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef DOMAIN_H_
#define DOMAIN_H_
#include "qchartglobal.h"
#include <QRectF>
#include <QSizeF>

QTCOMMERCIALCHART_BEGIN_NAMESPACE

class Domain: public QObject {
    Q_OBJECT
public:
    explicit Domain(QObject* object=0);
    virtual ~Domain();

    void setRange(qreal minX, qreal maxX, qreal minY, qreal maxY);
    void setRange(qreal minX, qreal maxX, qreal minY, qreal maxY, int tickXCount, int tickYCount);
    void setRangeX(qreal min, qreal max);
    void setRangeX(qreal min, qreal max, int tickCount);
    void setRangeY(qreal min, qreal max);
    void setRangeY(qreal min, qreal max, int tickCount);
    void setMinX(qreal min);
    void setMaxX(qreal max);
    void setMinY(qreal min);
    void setMaxY(qreal max);

    qreal minX() const { return m_minX; }
    qreal maxX() const { return m_maxX; }
    qreal minY() const { return m_minY; }
    qreal maxY() const { return m_maxY; }

    qreal spanX() const;
    qreal spanY() const;
    bool isEmpty() const;

    int tickXCount() const {return m_tickXCount;}
    int tickYCount() const {return m_tickYCount;}

    friend bool operator== (const Domain &domain1, const Domain &domain2);
    friend bool operator!= (const Domain &domain1, const Domain &domain2);
    friend QDebug operator<<(QDebug dbg, const Domain &domain);

    void zoomIn(const QRectF& rect, const QSizeF& size);
    void zoomOut(const QRectF& rect, const QSizeF& size);
    void move(int dx,int dy,const QSizeF& size);

Q_SIGNALS:
    void domainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY);
    void rangeXChanged(qreal min, qreal max, int tickXCount);
    void rangeYChanged(qreal min, qreal max, int tickYCount);

public Q_SLOTS:
    void handleAxisXChanged(qreal min,qreal max,int tickXCount = 5,bool niceNumbers = false);
    void handleAxisYChanged(qreal min,qreal max,int tickYCount = 5,bool niceNumbers = false);

private:
    void looseNiceNumbers(qreal &min, qreal &max, int &ticksCount);
    qreal niceNumber(qreal x,bool celing);

private:
    qreal m_minX;
    qreal m_maxX;
    qreal m_minY;
    qreal m_maxY;
    int m_tickXCount;
    int m_tickYCount;
    bool m_niceNumbers;
};

QTCOMMERCIALCHART_END_NAMESPACE

#endif