关于qgraphicsscene中update没有生效的问题
void paintEvent(QPaintEvent* event) {switch (m_xOpposite) {
case false: {
m_X = m_X + 1;
}break;
case true: {
m_X = m_X - 1;
}break;
};
switch (m_yOppsite) {
case false: {
m_Y = m_Y + 1;
}break;
case true: {
m_Y = m_Y - 1;
}break;
};
m_scene->update(0,0,500,500);
调用m_scene->updateme并未调用qgraphicsitem中的paint
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