wxPython与包装staticText的问题

问题内容：

下面发布了代码的简化版本（删除空白，注释等以减小大小，但我程序的一般格式保持大致相同）。

当我运行脚本时，静态文本会正确包装，但是面板中的其他项目不会向下移动（它们的行为就像静态文本只有一行，因此并不是所有内容都可见）。

如果我手动调整窗口/框架的大小，即使只是很小的一部分，所有内容都会得到纠正，并按原样显示。

一开始为什么不能正确显示？我尝试了GetParent().Refresh()orUpdate()和GetTopLevelParent().Update()or的各种组合Refresh()。我还尝试了所有可以想到的方法，但是如果不手动调整框架/窗口的大小就无法使其正确显示。调整大小后，它可以完全按照我的要求工作。

信息：

Windows XP
Python 2.5.2
wxPython 2.8.11.0（msw-unicode）

我的代码：

#! /usr/bin/python

import wx

class StaticWrapText(wx.PyControl):
   def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
                size=wx.DefaultSize, style=wx.NO_BORDER,
                validator=wx.DefaultValidator, name='StaticWrapText'):
      wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
      self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
      self.wraplabel = label
      #self.wrap()
   def wrap(self):
      self.Freeze()
      self.statictext.SetLabel(self.wraplabel)
      self.statictext.Wrap(self.GetSize().width)
      self.Thaw()
   def DoGetBestSize(self):
      self.wrap()
      #print self.statictext.GetSize()
      self.SetSize(self.statictext.GetSize())
      return self.GetSize()

class TestPanel(wx.Panel):
   def __init__(self, *args, **kwargs):
      # Init the base class
      wx.Panel.__init__(self, *args, **kwargs)
      self.createControls()
   def createControls(self):
      # --- Panel2 -------------------------------------------------------------
      self.Panel2 = wx.Panel(self, -1)
      msg1 =  'Below is a List of Files to be Processed'
      staticBox      = wx.StaticBox(self.Panel2, label=msg1)
      Panel2_box1_v1 = wx.StaticBoxSizer(staticBox, wx.VERTICAL)
      Panel2_box2_h1 = wx.BoxSizer(wx.HORIZONTAL)
      Panel2_box3_v1 = wx.BoxSizer(wx.VERTICAL)

      self.wxL_Inputs = wx.ListBox(self.Panel2, wx.ID_ANY, style=wx.LB_EXTENDED)

      sz = dict(size=(120,-1))
      wxB_AddFile    = wx.Button(self.Panel2, label='Add File',        **sz)
      wxB_DeleteFile = wx.Button(self.Panel2, label='Delete Selected', **sz)
      wxB_ClearFiles = wx.Button(self.Panel2, label='Clear All',       **sz)
      Panel2_box3_v1.Add(wxB_AddFile,    0, wx.TOP, 0)
      Panel2_box3_v1.Add(wxB_DeleteFile, 0, wx.TOP, 0)
      Panel2_box3_v1.Add(wxB_ClearFiles, 0, wx.TOP, 0)

      Panel2_box2_h1.Add(self.wxL_Inputs, 1, wx.ALL|wx.EXPAND, 2)
      Panel2_box2_h1.Add(Panel2_box3_v1,  0, wx.ALL|wx.EXPAND, 2)

      msg =  'This is a long line of text used to test the autowrapping '
      msg += 'static text message.  '
      msg += 'This is a long line of text used to test the autowrapping '
      msg += 'static text message.  '
      msg += 'This is a long line of text used to test the autowrapping '
      msg += 'static text message.  '
      msg += 'This is a long line of text used to test the autowrapping '
      msg += 'static text message.  '
      staticMsg = StaticWrapText(self.Panel2, label=msg)

      Panel2_box1_v1.Add(staticMsg,      0, wx.ALL|wx.EXPAND, 2)
      Panel2_box1_v1.Add(Panel2_box2_h1, 1, wx.ALL|wx.EXPAND, 0)
      self.Panel2.SetSizer(Panel2_box1_v1)

      # --- Combine Everything -------------------------------------------------
      final_vbox = wx.BoxSizer(wx.VERTICAL)
      final_vbox.Add(self.Panel2, 1, wx.ALL|wx.EXPAND, 2)
      self.SetSizerAndFit(final_vbox)

class TestFrame(wx.Frame):
   def __init__(self, *args, **kwargs):
      # Init the base class
      wx.Frame.__init__(self, *args, **kwargs)
      panel = TestPanel(self)
      self.SetClientSize(wx.Size(500,500))
      self.Center()

class wxFileCleanupApp(wx.App):
   def __init__(self, *args, **kwargs):
      # Init the base class
      wx.App.__init__(self, *args, **kwargs)
   def OnInit(self):
      # Create the frame, center it, and show it
      frame = TestFrame(None, title="Test Frame")
      frame.Show()
      return True

if __name__ == '__main__':
   app = wxFileCleanupApp()
   app.MainLoop()

问题答案：

我希望以Mike Driscoll的代码为基准，希望这能证明我的问题。使用“ txt”有两种不同的版本。这是我要您尝试的三件事：

按原样运行。用我的StaticWrapText。一开始它显示错误，但是重新调整了窗口大小，并且完全可以按照我的要求工作。在“按钮”之前的文本下方没有空格/浪费空间
更改这两行（更改注释）：
txt = wx.StaticText（panel，label = text）

txt = StaticWrapText（panel，label = text）

现在您将看到没有换行，并且文本始终仅在一行上。绝对不是我们想要的。这是因为“ sizer.Add（txt，0，wx.EXPAND，5）”
…所以继续第3部分…

保留对第2部分
所做的更改，并将更改：sizer.Add（txt，0，wx.EXPAND，5）
更改为：
sizer.Add（txt，1，wx.EXPAND，5）
现在，静态文本将扩展。这接近工作状态…但是我不想在文本和按钮之间浪费所有空白。如果将窗口放大，则会浪费大量空间。调整窗口大小后，请参阅第1部分，以了解差异。

码：

import wx

class StaticWrapText(wx.PyControl):
   def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
                size=wx.DefaultSize, style=wx.NO_BORDER,
                validator=wx.DefaultValidator, name='StaticWrapText'):
      wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
      self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
      self.wraplabel = label
      #self.wrap()
   def wrap(self):
      self.Freeze()
      self.statictext.SetLabel(self.wraplabel)
      self.statictext.Wrap(self.GetSize().width)
      self.Thaw()
   def DoGetBestSize(self):
      self.wrap()
      #print self.statictext.GetSize()
      self.SetSize(self.statictext.GetSize())
      return self.GetSize()

class MyForm(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial")

        # Add a panel so it looks the correct on all platforms
        panel = wx.Panel(self, wx.ID_ANY)

        text = "I'm subclasses the statictext because I want it to act exactly like a static text, but correctly wordwrap as needed. I've found several examples of it on the web, but none that worked how I wanted. The wordwrap makes it look much nicer when the user may decide to re-size the window, so I would definitely like to have it be wordwrapped. I know about the wx.lib.wordwrap, but chose to use the built in Wrap function of the statictext control instead. It basically does the same thing from what I understand."
        #txt = wx.StaticText(panel, label=text)
        txt = StaticWrapText(panel, label=text)
        wxbutton = wx.Button(panel, label='Button', size=wx.Size(120,50))
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(txt,      0, wx.EXPAND, 5)
        sizer.Add(wxbutton, 1, wx.EXPAND, 5)
        panel.SetSizer(sizer)

# Run the program
if __name__ == "__main__":
    app = wx.PySimpleApp()
    frame = MyForm().Show()
    app.MainLoop()

编辑：

AHHH
…终于！我实际上尝试在程序的每个级别上使用Layout（）方法，但实际上我需要在通过GetSizer（）方法找到的SIZER上使用Layout（）-否则您可以将SendSizeEvent（）发送到面板（注释在下面的代码中）。因此，以下内容完全符合我的要求！谢谢您的帮助。唯一的其他更改是将带有self.panel的面板存储在frame类中。注意，我必须在frame.Show（）之后放置此语句，否则它不能正常工作。

码：

import wx

class StaticWrapText(wx.PyControl):
   def __init__(self, parent, id=wx.ID_ANY, label='', pos=wx.DefaultPosition,
                size=wx.DefaultSize, style=wx.NO_BORDER,
                validator=wx.DefaultValidator, name='StaticWrapText'):
      wx.PyControl.__init__(self, parent, id, pos, size, style, validator, name)
      self.statictext = wx.StaticText(self, wx.ID_ANY, label, style=style)
      self.wraplabel = label
      #self.wrap()
   def wrap(self):
      self.Freeze()
      self.statictext.SetLabel(self.wraplabel)
      self.statictext.Wrap(self.GetSize().width)
      self.Thaw()
   def DoGetBestSize(self):
      self.wrap()
      #print self.statictext.GetSize()
      self.SetSize(self.statictext.GetSize())
      return self.GetSize()

class MyForm(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial")

        # Add a panel so it looks the correct on all platforms
        self.panel = wx.Panel(self, wx.ID_ANY)

        text = "I'm subclasses the statictext because I want it to act exactly like a static text, but correctly wordwrap as needed. I've found several examples of it on the web, but none that worked how I wanted. The wordwrap makes it look much nicer when the user may decide to re-size the window, so I would definitely like to have it be wordwrapped. I know about the wx.lib.wordwrap, but chose to use the built in Wrap function of the statictext control instead. It basically does the same thing from what I understand."
        txt = StaticWrapText(self.panel, label=text)
        wxbutton = wx.Button(self.panel, label='Button', size=wx.Size(120,50))
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(txt,      0, wx.EXPAND, 5)
        sizer.Add(wxbutton, 1, wx.EXPAND, 5)
        self.panel.SetSizer(sizer)

# Run the program
if __name__ == "__main__":
    app = wx.PySimpleApp()
    frame = MyForm()
    frame.Show()
    #frame.panel.SendSizeEvent()
    frame.panel.GetSizer().Layout()
    app.MainLoop()

最后一点，在我发布的原始程序中，需要在frame.Show（）之前或之后添加以下行：
frame.panel.Panel2.GetSizer（）。Layout（）

有趣的是…对于那个原始示例，它可以在frame.Show（）之前或之后，但是另一个示例要求它在frame.Show（）之后。我不知道为什么，但是把它放在后面就可以了。

wxPython与包装staticText的问题

txt = StaticWrapText（panel，label = text）

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