获取QMenuBar中菜单的QRect

Question

我在QMenuBar中重新实现了mouseMoveEvent，这样我就可以点击并拖动一个无框架的应用程序(基本上就是在我的应用程序周围制作我自己的框架)。然而，每当鼠标在QMenu项上时，我都会尝试禁用此行为，这会产生奇怪的行为(当您单击菜单时，窗口开始跟随鼠标！)。

我以为这和调用QMenuBar的self.childrenRect().contains(event.pos())一样简单，但是这并不起作用。据我所知，self.childrenRect()实际上并不返回QMenu项的rect。那么，什么才是“正确”的方法呢？

下面是我的子类QMenuBar以供参考：

class MoveMenu(QtGui.QMenuBar):
    def __init__(self):
        super(MoveMenu, self).__init__()
        self.mouseStartLoc = QtCore.QPoint(0,0)
        self.set_move = False

    def mousePressEvent(self, event):
        super(MoveMenu, self).mousePressEvent(event)
        self.mouseStartLoc = event.pos()

        # this is always testing False
        if not self.childrenRect().contains(event.pos()):
            self.set_move = True

    def mouseMoveEvent(self, event):
        super(MoveMenu, self).mouseMoveEvent(event)
        if self.set_move:
            globalPos = event.globalPos()
            self.parent().move(globalPos - self.mouseStartLoc)

    def mouseReleaseEvent(self, event):
        super(MoveMenu, self).mouseReleaseEvent(event)
        self.set_move = False

Answer 1

在eyllanesc的帮助下，下面是工作代码。self.childrenRect()不工作(bug?)但是手动循环遍历这些子节点是可行的。

class MoveMenu(QtGui.QMenuBar):
    def __init__(self):
        super(MoveMenu, self).__init__()
        self.mouseStartLoc = QtCore.QPoint(0,0)
        self.set_move = False

    def mousePressEvent(self, event):
        super(MoveMenu, self).mousePressEvent(event)
        self.mouseStartLoc = event.pos()

        if not any(child.rect().contains(event.pos()) for child in self.children():
            self.set_move = True

    def mouseMoveEvent(self, event):
        super(MoveMenu, self).mouseMoveEvent(event)
        if self.set_move:
            globalPos = event.globalPos()
            self.parent().move(globalPos - self.mouseStartLoc)

    def mouseReleaseEvent(self, event):
        super(MoveMenu, self).mouseReleaseEvent(event)
        self.set_move = False