nmWATI/Include/iPlot/iPlotBase/Helper/ZxAxisHelper.h

#pragma once

#include <QObject>
#include "Defines.h"
#include "iPlotBase_global.h"

class ZxSubAxisBase;
class QPainter;

// 该类是ZxSubAxisBase的分发处理
class I_PLOTBASE_EXPORT ZxAxisHelper : public QObject
{
    Q_OBJECT

public:

    static const float g_Sub_ScaleTick_Len;
    static const float g_Main_ScaleTick_Len;

public:

    explicit ZxAxisHelper(ZxSubAxisBase* p);
    ~ZxAxisHelper();

    // 统一调用接口
    virtual void getPreferedSize(QPainter* painter, \
                                 float& w, float& h);//预估大小
    virtual void drawAxis(QPainter* painter);   //绘制坐标
    virtual void drawGrids(QPainter* painter, QRectF& rtInner);//Plot网格线
    virtual QRectF getAxisRect();     //最大外范围

    // 获取类型
    AxisType getAxisType();

protected:

    // 预估大小
    virtual void getPreferedTitleSize(QPainter* painter, \
                                      float& w, float& h);//预估大小
    virtual void getPreferedTickSize(QPainter* painter, \
                                     float& w, float& h);//预估大小
    virtual QRectF getPreferedTickSumRect(QPainter* painter);
    virtual void adjustPreferedSize(float& w, float& h);

    // 取得待显示的刻度文本标识
    virtual QMap<float, QString> getTickInfos();

    // 绘制函数
    virtual void drawBaseLine(QPainter* painter, QRectF& rt);
    virtual void drawTickAndTags(QPainter* painter, QRectF& rt);
    virtual void drawTitle(QPainter* painter, QRectF& rt);

    virtual void drawFocus(QPainter* painter, QRectF& rt);

    virtual void drawOneTickLine(QPainter* painter, float fPos, bool bMainInterval);
    virtual void drawOneTickTag(QPainter* painter, float fPos, QString s);

    virtual void drawOneGridLine(QPainter* painter, float fPos, QRectF& rtInner);


    // 获取绘制的位置信息
    virtual void locateOneTickTag(QPainter* painter, float fPos, QString s, \
                                  QRectF& rt, int& flag);
    virtual void locateTitle(QPainter* painter, QString s, \
                             QRectF& rt, int& flag);
    virtual void metricStr(QPainter* painter, QString s, float& w, float& h);

protected:

    // 范围判断
    bool isMidIn(float f, float f1, float f2);

    // 从坐标轴获取参数
    void bindParas();

    // 是否可以显示
    virtual bool canTickShow(QRectF rt);

    // 裁剪区
    virtual void clipBounds(QPainter* painter, QRectF& rt);

    // 合并Rect
    void uniteTickBound(QRectF rt);

    // 旋转式绘制
    void rotateText(QPainter* painter, QRectF& rt, \
                    int flag, QString s, float fAngle);

public slots:

protected:

    // 载体及载体类型
    ZxSubAxisBase* m_pAxis;
    AxisType m_oAxisType;

    // x or y and out or inner
    bool m_bAxisX;
    bool m_bScaleOut;

    // 范围
    QRectF m_rtBound; //whole
    QRectF m_rtTickSum; //所有刻度文字的范围合集
    QRectF m_rtTickLastVisible;
    QRectF m_rtTitle;

    friend class ZxSubAxisBase;
};