文本更改时，wxPython StaticText不会调整大小

import wx

class MyFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="StaticText自动调整大小示例")
        
        self.panel = wx.Panel(self)
        
        self.static_text = wx.StaticText(self.panel, label="初始文本内容")
        self.static_text.Bind(wx.EVT_SIZE, self.on_text_change)
        
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.static_text, 0, wx.ALL, 10)
        self.panel.SetSizer(sizer)
        
    def on_text_change(self, event):
        new_text = "新的文本内容"
        
        # 计算文本的大小
        text_width, text_height = self.static_text.GetTextExtent(new_text)
        
        # 调整控件大小
        self.static_text.SetSize((text_width, text_height))
        
        # 更新文本内容
        self.static_text.SetLabel(new_text)
        
        event.Skip()

app = wx.App()
frame = MyFrame()
frame.Show()
app.MainLoop()