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QGraphicsLineItem::paint() artifacts - py4u

I have my own class which inherits from QGraphicsLineItem and overrides the paint() method to draw a thick line with an arrow head:

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查詢 「QGraphicsLineItem」的人也找了：

  1. QGraphicsItem
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  3. Qgraphicsitem line
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  4. QGraphicsItem paint
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  5. QGraphicsScene
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  6. QGraphicsSceneMouseEvent
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  7. QPen
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  8. QGraphicsRectItem
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