#ifndef AXISITEM_H_
#define AXISITEM_H_

#include "chart_p.h"
#include <QGraphicsItem>

QTCOMMERCIALCHART_BEGIN_NAMESPACE

class QChartAxis;
class ChartPresenter;

class Axis : public Chart
{
    Q_OBJECT
public:
    enum AxisType{X_AXIS,Y_AXIS};

    Axis(QChartAxis* axis,ChartPresenter* presenter,AxisType type = X_AXIS);
    ~Axis();

    AxisType axisType() const {return m_type;};

    void setAxisOpacity(qreal opacity);
    qreal axisOpacity() const;

    void setGridOpacity(qreal opacity);
    qreal gridOpacity() const;

    void setLabelsOpacity(qreal opacity);
    qreal labelsOpacity() const;

    void setShadesOpacity(qreal opacity);
    qreal shadesOpacity() const;

    void setLabelsAngle(int angle);
    int labelsAngle()const { return m_labelsAngle; }

    void setShadesBrush(const QBrush& brush);
    void setShadesPen(const QPen& pen);

    void setAxisPen(const QPen& pen);
    void setGridPen(const QPen& pen);

    void setLabelsPen(const QPen& pen);
    void setLabelsBrush(const QBrush& brush);
    void setLabelsFont(const QFont& font);

    inline QRectF geometry() const { return m_rect; }
    inline QVector<qreal> layout() { return m_layoutVector;};

public slots:
    void handleAxisUpdated();
    void handleAxisCategoriesUpdated();
    void handleRangeChanged(qreal min , qreal max,int tickCount);
    void handleGeometryChanged(const QRectF& size);


private:
    inline bool isEmpty();
    void createItems(int count);
    void deleteItems(int count);

    QVector<qreal> calculateLayout() const;
    void updateLayout(QVector<qreal>& layout);
    void setLayout(QVector<qreal>& layout);

    bool createLabels(QStringList& labels,qreal min, qreal max,int ticks) const;
    void axisSelected();

private:
    QChartAxis* m_chartAxis;
    AxisType m_type;
    QRectF m_rect;
    int m_labelsAngle;
    QGraphicsItemGroup m_grid;
    QGraphicsItemGroup m_shades;
    QGraphicsItemGroup m_labels;
    QGraphicsItemGroup m_axis;
    QVector<qreal> m_layoutVector;
    qreal m_min;
    qreal m_max;
    int m_ticksCount;
    qreal m_zoomFactor;

    friend class AxisAnimation;
    friend class AxisItem;

};

class AxisItem: public QGraphicsLineItem
{
public:

    AxisItem(Axis* axis,QGraphicsItem* parent=0):QGraphicsLineItem(parent),m_axis(axis){};

protected:
   void mousePressEvent(QGraphicsSceneMouseEvent *event)
   {
       Q_UNUSED(event)
       m_axis->axisSelected();
   }

   QRectF boundingRect() const
   {
      return shape().boundingRect();
   }

   QPainterPath shape() const
   {
       QPainterPath path = QGraphicsLineItem::shape();
       QRectF rect = path.boundingRect();
       path.addRect(rect.adjusted(0,0,m_axis->axisType()!=Axis::X_AXIS?8:0,m_axis->axisType()!=Axis::Y_AXIS?8:0));
       return path;
   }

private:
   Axis* m_axis;

};

QTCOMMERCIALCHART_END_NAMESPACE

#endif /* AXISITEM_H_ */