wxPython wxScrolledWindow函数引发TypeError

时间:2013-01-10 02:37:40

标签: python python-2.7 wxpython scrollbar

我正在尝试学习如何将wxPython wxScrolledWindow类用于项目,而且我遇到了障碍。

我已经设置了一个程序,该程序使得wxScrolledWindow类派生的面板包含控件列表;面板的客户有意太小,无法一次显示所有控件。我已经设法在面板的一侧获得一个滚动条,但点击它什么也没做。此外,每当我尝试从对象中调用与Scrollbar相关的一个继承函数时,我都会收到一个奇怪的错误:

Traceback (most recent call last):
  File "C:\Python27\Projects\Supervisor\test.py", line 69, in <module>
    frame = MyFrame(None, "Test Bench")
  File "C:\Python27\Projects\Supervisor\test.py", line 18, in __init__
    self.mainpanel = MyPanel(self)
  File "C:\Python27\Projects\Supervisor\test.py", line 62, in __init__
    self.SetScrollRate(10, 10)
  File "C:\Python27\lib\site-packages\wx-2.8-msw-unicode\wx\_windows.py", line 179, in SetScrollRate
    return _windows_.ScrolledWindow_SetScrollRate(*args, **kwargs)
TypeError: in method 'ScrolledWindow_SetScrollRate', expected argument 1 of type 'wxScrolledWindow *'

我看过很多例子,但我对于我犯错误的地方感到很茫然。

我在MS Windows下使用Python 2.7.3,wxPython 2.8。我实际上设法完成了很多事情而没有遇到严重的问题,当然也没有这样的事情。

我的代码如下:

# Test.py
#
# Dummy file for testing things that are too complex to type into the shell
# directly.

import wx

class MyFrame(wx.Frame):

    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, title=title)

        self.SetSize((800, 500))
        self.Center()

        self.Bind(wx.EVT_CLOSE, self.OnClose)

        self.mainpanel = MyPanel(self)
        self.mainpanel.SetMaxSize(self.GetVirtualSize())

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.mainpanel)

        self.SetSizer(sizer)
        self.Show(True)

        mpsize = self.mainpanel.GetSize()
        mvsize = self.mainpanel.GetVirtualSize()
        vsize = self.GetVirtualSize()

        self.SetClientSize((mpsize[0], vsize[1]))
        self.mainpanel.SetSize((mpsize[0], vsize[1]))
        self.mainpanel.SetVirtualSize(mvsize)

    def OnClose(self, e):
        self.Destroy()


class MyPanel(wx.ScrolledWindow):

    def __init__(self, parent):

        wx.Panel.__init__(self, parent,
                          style = wx.VSCROLL)

        sizer = wx.GridBagSizer(10, 10)

        self.egps = []
        for i in range(20):
            leftbit = wx.StaticText(self, label = "Item " + str(i))
            midbit = wx.TextCtrl(self, id = wx.ID_ANY)
            rightbit = wx.CheckBox(self, id = wx.ID_ANY, label = "Checkbox")

            self.egps.append([leftbit, midbit, rightbit])

        for i in range(len(self.egps)):
            sizer.Add(self.egps[i][0], (i,0))
            sizer.Add(self.egps[i][1], (i,1))
            sizer.Add(self.egps[i][2], (i,2))

        self.SetSizer(sizer)
        self.SetScrollRate(10, 10)



if __name__ == "__main__":
    app = wx.App(False)

    frame = MyFrame(None, "Test Bench")

    app.MainLoop()

1 个答案:

答案 0 :(得分:1)

好吧,我觉得有点愚蠢。经过进一步审查,问题是我从一个继承自wx.Panel的旧类中调整了代码。因此,我有wx.Panel.__init__ ...行而不是wx.ScrolledWindow.__init__ ...行。

很有趣,你盯着代码很长一段时间都看不到它......但是一旦帖子上升,它就会出现。 :P