python – 在PyQt中正确定位弹出窗口小部件

他一直困扰着我,主要是因为移动小部件和诸如此类的方法有多少组合.基本上我有一个简单的小部件,我希望能够在我的应用程序的特定区域弹出.问题是我似乎无法让它弹出我想要的地方.另外,我想以一种方式设置它,我可以根据它是否弹出指向应用程序左上角的小部件来调整它的“指针”一侧,而不是指向底部 – 对.

理想情况下,我能够将弹出窗口几乎放在父窗口小部件的边缘附近,并根据它的位置来锚定它.这是我一直在尝试的.

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys

class popup(QWidget):
    def __init__(self,parent = None,widget=None):    
        QWidget.__init__(self,parent)
        layout = QGridLayout(self)
        button = QPushButton("Very Interesting Text Popup. Here's an arrow   ^")
        layout.addWidget(button)
        self.move(widget.rect().bottomLeft())

class Window(QWidget):
    def __init__(self):
        QWidget.__init__(self)
        self.button = QPushButton('Hit this button to show a popup',self)
        self.button.clicked.connect(self.handleOpenDialog)
        self.button.move(250,50)
        self.resize(600,200)

    def handleOpenDialog(self):
        self.popup = popup(self,self.button)
        self.popup.show()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = Window()
    win.show()
    sys.exit(app.exec_())

此代码生成一个随机位于窗口小部件中间的按钮.我想要得到的是,在这个例子中,弹出窗口显示在右下方,其“pivot”位于右上角,弹出按钮中的箭头指向窗口小部件的右下角.然而,它正在窗口的左上角突然出现.在我用.move,.setGeometry和使用QRect玩弄的所有内容中,我不能为我的生活弄清楚这一点.对谁能伸出援助之手的巨大荣誉.谢谢！

class PopupDialogMixin(object):  # will not work (with PySide at least) unless implemented as 'new style' class. I.e inherit from object
    def makePopup(callWidget):
        """
        Turns the dialog into a popup dialog.
        callWidget is the widget responsible for calling the dialog (e.g. a toolbar button)
        """
        self.setContentsMargins(0,0)
        self.setWindowFlags(QtCore.Qt.FramelessWindowHint | QtCore.Qt.Popup)
        self.setObjectName('ImportDialog')

        # Move the dialog to the widget that called it
        point = callWidget.rect().bottomRight()
        global_point = callWidget.mapToGlobal(point)
        self.move(global_point - QtCore.QPoint(self.width(),0))

dlg = MyDialog(self)
dlg.makePopup(self.myButton)