Question

下面发布了代码的简化版本（删除了空格，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，静态文本正确地包装，但面板中的其他项目不会向下移动（它们就好像静态文本只有一行，因此不是所有内容都可见）。

如果我手动调整窗口/框架的大小，即使只是一小部分，一切都会得到纠正，并按原样显示。

为什么开始时没有正确显示？我尝试了GetParent().Refresh()或Update()以及GetTopLevelParent().Update()或Refresh()的各种组合。我也试过了我能想到的一切但却无法在不手动调整框架/窗口大小的情况下正确显示。一旦重新调整大小，它就会按照我想要的方式工作。

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()

Answer 1

我用

width = 200  # panel width
txt = wx.StaticText(panel, label=text)
txt.Wrap(width)

这很好用，下一个小部件正确定位。您可以轻松地动态执行txt.Wrap(width)。

Answer 2

为什么要对它进行子类化？你需要wordwrap吗？如果是这样，你可以使用wx.lib.wordwrap中的模块。

在回答OP的评论时，请查看：

import wx

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)
        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(txt, 1, wx.EXPAND, 5)
        panel.SetSizer(sizer)

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

我使用了OP的评论文本。无论如何，在Windows XP，Python 2.5和wxPython 2.8.10.1上，这对我来说很好。

Answer 3

我发现我认为处理这个问题的方法更加容易和自动。

创建StaticText控件后，将控件的wx.EVT_SIZE绑定到一个处理程序，该处理程序使用事件的GetSize（）[0]作为参数调用StaticText的Wrap（）函数（然后跳过该事件）。

一个例子：

class MyDialog(wx.Dialog):
    def __init__(self, parent):
        wx.Dialog.__init__(self, parent = parent, title = "Test Dialog", style = wx.CAPTION)

        bigstr = "This is a really long string that is intended to test the wrapping functionality of the StaticText control in this dialog.  If it works correctly, it should appear as multiple lines of text with a minimum of fuss."

        self.__label__ = wx.StaticText(parent = self, label = bigstr)
        self.__actionbutton__ = wx.Button(parent = self, label = "Go")

        self.__label__.Bind(wx.EVT_SIZE, self.__WrapText__)
        self.__actionbutton__.Bind(wx.EVT_BUTTON, self.__OnButton__)

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.__label__, flag = wx.ALL | wx.EXPAND, border = 5)
        sizer.Add(self.__actionbutton__, flag = wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.CENTER, border = 0)
        self.SetSizer(sizer)

        self.Layout()

    def __OnButton__(self, event):
        self.EndModal(wx.ID_OK)

    def __WrapText__(self, event):
        self.__label__.Wrap(event.GetSize()[0])

        event.Skip()

这就是我的系统（MSW，Python 2.7.5，wx 2.8.12.1）的样子：

wxPython包装staticText的问题

4 个答案: