SignPenAppTablet/signpenpainter.h

#ifndef SIGNPENPAINTER_H
#define SIGNPENPAINTER_H

#include <QObject>
#include <QPointF>
#include <QPainterPath>
#include "SWPosPointcut.h"
#include "signpenstructs.h"

#define MaxBrushCount  2
#define MinSpeed  300
#define MaxSpeed  400
#define MaxBrush 0.2f

class SignPainterCacheThread;
class SignPainterCacheThread_Linux;
class QPainter;

class SignPenPainter : public QObject
{
    Q_OBJECT
public:
    SignPenPainter();
    ~SignPenPainter();
    void SetPainterRect(QRect rect);
    void SetPenType(int type);
    void SetPenColor(QColor penColor);
    void SetCurrentPageIndex(int page);
    void SetOffSetRect(QRect rect);
    void Init();
    void ClearDraw();
    void DrawRect(QPainter* painter,QRect currentVisibleRect);
    void MousePressed(CGPoint currentPoint,float radius,double force,double maxForce);//force 压感力度
    void MouseMoved(CGPoint currentPoint,float radius,double force,double maxForce);
    void MouseReleased(CGPoint currentPoint,float radius);
    void SetUseCache(bool use){ isUseCache = use;}
    bool GetUseCache(){return isUseCache;}
    void SetUseDebug(bool use){ isOutDebug = use;}
    bool GetUseDebug(){return isOutDebug;}
    void SetStressSwitch(bool isStressSwitch);
    bool GetStressSwitch();//是否使用压感设备

    QList<SWAnnotPath*> GetAnnotPathLists();

QList<QPainterPath> GetPenPathData(QPainterPath &data, int pageIndex, QList<Element> penDataList, float factorW = 1.0, float factorH = 1.0, int offsetX = 0, int offsetY = 0);
private:
    void SwPenPathDrawWithPainter(QPainter* bufPainter,bool isEnd);
    void SwPenPathDraw(bool isEnd);
    void SwPenPathDrawRightWithBezier(QPainterPath* bPath ,QList<Element>& elementList,SWRealPoint penPoint,CGPoint prevPoint,QList<SWRealPoint> rPoints,bool end);
    bool CGPointEqualToPoint(const CGPoint &point1, const CGPoint &point2);
    void CalculatePointcutWihtPoint(CGPoint point, float radius, bool stroke, bool circle);
    bool GetPointValid(SWRealPoint penPoint);
    CGPoint ConvertToCGPoint(SWPointcut cPoint);
    float GetDistanceBetweenPoint(QPointF start, QPointF end);

    QPaintDevice *PaintDevice();

    void SynToBaseDevice();

    
signals:
    void NeedsDisplay(QRect rect);
    void NeedsRefresh();
    void ReleasedExcuted();

    //记录日志
    void log(QString);
private:
    QPointF CGPointZero;

    int strokeSpl;
    float stressSpl;
    float penRadius;
    SWAnnotPath *curAnnotPath;

    QList<SWAnnotPath*> drawPaths;
    CGPoint selectPoint;
    //标记上次计算贝塞尔点
    CGPoint preBezierPoint;
    qint64 previousTimestamp;
    float pointSpeed;
    float preLineRadius;

    int stressSwitch;//是否开启压感 1开启  0关闭

    QImage* m_BaseBuf;
    //渲染bug，基于m_BaseBuf从上一次倒数10个点开始绘制，绘制到倒数10个点时，数据保存回m_BaseBuf
    QImage* m_PaintingBuf;
    QSize m_Size;
    QRect m_PaintRect;

    int m_StartIndex;//渲染开始的节点
    int SyncCount;// 重新绘制的数据

    bool isRelease;
    int m_ToImageIndex;//图片后的开始渲染点
    int m_FreshCount;//实时渲染的笔画数

#ifdef Q_OS_WIN
    SignPainterCacheThread* cacheThread;
#else
    SignPainterCacheThread_Linux* cacheThread;
#endif
    bool isUseCache;
    bool isOutDebug;
};

#endif // SIGNPENPAINTER_H