QCustomPlot Discussion and Comments

Class NewQCPLineEnding : public QCPLineEnding
{
 Q_GADGET
public:
 enum EndingStyle {esSun = 100, esMoon, esStar};
 NewQCPLineEnding();
 NewQCPLineEnding(EndingStyle style, double width=8, double length=10, bool inverted=false);
 EndingStyle style() const { return mStyle; }
 void draw(QCPPainter *painter, const QCPVector2D &pos, const QCPVector2D &dir) const {
 ...
 case esSun:
 ...
 break;
 case esMoon:
 ...
 break;
 case esStar:
 ...
 break;
 ...
 }
protected:
 EndingStyle mStyle;
};
class NewQCPItemLine : public QCPItemLine
{
 Q_OBJECT
public:
 explicit NewQCPItemLine(QCustomPlot *parentPlot);
 virtual ~NewQCPItemLine() Q_DECL_OVERRIDE {}
 void setHead(const NewQCPLineEnding & head) { mHead = head;}
 void setTail(const NewQCPLineEnding & tail) { mTail = tail;}
protected:
 WCPLineEnding mHead,mTail;
 virtual void draw(QCPPainter *painter) Q_DECL_OVERRIDE {
 if (mTail.style() != static_cast<NewQCPLineEnding::EndingStyle>(QCPLineEnding::esNone))
 mTail.draw(painter, endVec, endVec-startVec);
 if (mHead.style() != static_cast<NewQCPLineEnding::EndingStyle>(QCPLineEnding::esNone))
 mHead.draw(painter, endVec, endVec-startVec);
 }
};
 auto sun = new NewQCPItemLine(plot);
 sun->setHead(NewQCPLineEnding::esSun);

I've tried it. Is that correct?