[Interest] QGraphicsScene crashed after removeItem() and delete item

[程梁]

Hi, there! I have a problem: when I called QGraphicsScene::removeItem() then delete the removed item, my application crashed. This happens on Qt5 64bits (I tested on openSUSE with 5.1.1 and gcc 4.7.2) but not on Qt4.

This is my code:

void GameController::snakeAteFood(Snake *snake, Food *food)
{
    scene.removeItem(food);
    delete food;

    addNewFood();
}

If I remove the line "delete food;" everything is OK. But it will crash with this line. The Food::boundingRect() will not change but Snake::boundingRect() does so I did add prepareGeometryChange() function before it changed. I've no idea why this still crashed. Please help me.

Thank you!

Cheng Liang
Nanjing, China
http://www.devbean.net 		 	   		  
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