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Qt still calls .paint() on QGraphicsItem despite caching enabl...

I've been trying to draw many 'rects' efficiently in Qt (PySide), yet it still appears to lag drawing the entire 'grid' in the paint call of a QGraphicsItem.

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查詢 「QGraphicsItem paint」的人也找了：

  1. QGraphicsItem
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  2. QGraphicsScene
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  3. QGraphicsView
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  4. QPainterPath
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  5. QGraphicsRectItem
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  6. QGraphicsPixmapItem
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  7. Qgraphicspathitem clear
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  8. QGraphicsSimpleTextItem
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