Hard math to fix
issue #571. Well, not really hard math,
just checking if vector is in opposite direction and trait
that as a special case when removing rope dividing point
(this could only happens when rope sticks to land outline,
so this basically fixes a bug in another bug).
#include <QLabel>
#include <QRect>
#include <QList>
#include <QMouseEvent>
class PixLabel : public QLabel
{
Q_OBJECT
public:
PixLabel();
QList<QRect> rects;
public slots:
void AddRect();
private:
void paintEvent(QPaintEvent * event);
void mousePressEvent(QMouseEvent * e);
};