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# pragma once
# include "Defines.h"
# include "LlUtils_global.h"
/// @brief 坐标轴刻度的计算
class I_UTILS_EXPORT ZxScaleHelper
{
public :
ZxScaleHelper ( ) ;
~ ZxScaleHelper ( ) ;
/// @brief 求取坐标轴的刻度显示
/// @param dMin 左值，通常为最小值
/// @param dMax 右值，通常为最大值
/// @param bAxisX 是否X轴
/// @param bLinear 是否线性
/// @param bExpand 是否流量自动扩展一个tick
/// @param pVecScales结果存储位置
/// @note 1：
bool calAxisScales ( double & dMin , double & dMax , \
bool bAxisX , \
bool bLinear = true , \
bool bExpand = false , \
QVector < double > * pVecScales = nullptr ) ;
private :
// 内部接口（目前刻度计算函数，还有待较大完善空间）
bool checkReverse ( ) ;
void normalizeRange ( ) ;
bool checkSameValue ( ) ;
bool checkLogicalZero ( ) ;
void adjustIncrease ( double & d , double & dMin ) ;
bool calScaleByLinear ( ) ;
bool calScaleByLogical ( ) ;
void finalAdjustP ( ) ;
private :
// 计算过程中涉及到的一些中间变量
double m_dMax ;
double m_dMin ;
double m_dMinRaw ;
double m_dMaxRaw ;
bool m_bAxisX ;
bool m_bLinear ;
bool m_bNeedTurn ;
bool m_bExpand ;
double m_dTickIncrease ;
QVector < double > * m_pVecTicks ;
} ;