wxPython 弹出窗口绑定到 wxButton

Question

我一直在网上逛，浏览了很多不同的网站，但我找不到如何在wxPython中为wxButton创建一个弹出窗口的方法。

有没有什么想法呢？

Answer 1

你有没有看过wxPython的演示？里面有很多关于如何使用wx.PopupWindow及其变种的例子。这里有一个基于演示的例子：

import wx

########################################################################
class TestPopup(wx.PopupWindow):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent, style):
        """Constructor"""
        wx.PopupWindow.__init__(self, parent, style)

        panel = wx.Panel(self)
        self.panel = panel
        panel.SetBackgroundColour("CADET BLUE")

        st = wx.StaticText(panel, -1,
                           "This is a special kind of top level\n"
                           "window that can be used for\n"
                           "popup menus, combobox popups\n"
                           "and such.\n\n"
                           "Try positioning the demo near\n"
                           "the bottom of the screen and \n"
                           "hit the button again.\n\n"
                           "In this demo this window can\n"
                           "be dragged with the left button\n"
                           "and closed with the right."
                           ,
                           pos=(10,10))
        sz = st.GetBestSize()
        self.SetSize( (sz.width+20, sz.height+20) )
        panel.SetSize( (sz.width+20, sz.height+20) )

        panel.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown)
        panel.Bind(wx.EVT_MOTION, self.OnMouseMotion)
        panel.Bind(wx.EVT_LEFT_UP, self.OnMouseLeftUp)
        panel.Bind(wx.EVT_RIGHT_UP, self.OnRightUp)

        st.Bind(wx.EVT_LEFT_DOWN, self.OnMouseLeftDown)
        st.Bind(wx.EVT_MOTION, self.OnMouseMotion)
        st.Bind(wx.EVT_LEFT_UP, self.OnMouseLeftUp)
        st.Bind(wx.EVT_RIGHT_UP, self.OnRightUp)

        wx.CallAfter(self.Refresh)    

    def OnMouseLeftDown(self, evt):
        self.Refresh()
        self.ldPos = evt.GetEventObject().ClientToScreen(evt.GetPosition())
        self.wPos = self.ClientToScreen((0,0))
        self.panel.CaptureMouse()

    def OnMouseMotion(self, evt):
        if evt.Dragging() and evt.LeftIsDown():
            dPos = evt.GetEventObject().ClientToScreen(evt.GetPosition())
            nPos = (self.wPos.x + (dPos.x - self.ldPos.x),
                    self.wPos.y + (dPos.y - self.ldPos.y))
            self.Move(nPos)

    def OnMouseLeftUp(self, evt):
        if self.panel.HasCapture():
            self.panel.ReleaseMouse()

    def OnRightUp(self, evt):
        self.Show(False)
        self.Destroy()

########################################################################
class TestPanel(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent)

        btn = wx.Button(self, label="Open Popup")
        btn.Bind(wx.EVT_BUTTON, self.onShowPopup)


    #----------------------------------------------------------------------
    def onShowPopup(self, event):
        """"""
        win = TestPopup(self.GetTopLevelParent(), wx.SIMPLE_BORDER)

        btn = event.GetEventObject()
        pos = btn.ClientToScreen( (0,0) )
        sz =  btn.GetSize()
        win.Position(pos, (0, sz[1]))

        win.Show(True)

########################################################################
class TestFrame(wx.Frame):
    """"""

    #----------------------------------------------------------------------
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, title="Test Popup")
        panel = TestPanel(self)
        self.Show()

#----------------------------------------------------------------------
if __name__ == "__main__":
    app = wx.App(False)
    frame = TestFrame()
    app.MainLoop()