wxPython集中一个按钮和应用程序崩溃关闭

有人能帮我一箭双雕杀死两只鸟吗？我一直试图将按钮置于我的wxPanel中一段时间，似乎无法弄清楚。我尝试过不同的属性，例如wx.CENTER和wx.ALIGN_CENTER和wx.ALIGN_CENTER_HORIZONTAL，但似乎无法让按钮移动到面板的中心。我试图集中的按钮在add_unit_pane方法中为set_button。wxPython集中一个按钮和应用程序崩溃关闭

此外，当我点击X按钮关闭程序时，程序崩溃。我没有正确处理关闭事件吗？

有人能指出我错在哪里吗？

import wx 

class Example(wx.Frame): 

    def __init__(self, *args, **kw): 
     super(Example, self).__init__(*args, **kw) 
     self.init_ui() 

    def init_ui(self): 
     self.Bind(wx.EVT_CLOSE, self.on_close_window) 

     panel = wx.Panel(self) 
     panel_sizer = wx.BoxSizer(wx.VERTICAL) 
     panel_sizer.Add(self.add_unit_pane(panel, panel_sizer), 0, wx.EXPAND, border=5) 
     panel.SetSizerAndFit(panel_sizer) 

     self.Show() 

    def on_close_window(self, event): 
     self.Destroy() 

    def add_unit_pane(self, panel, panel_sizer): 
     """ Creates the Unit Measurement panel """ 
     unit_panel = wx.StaticBox(panel, -1, 'Unit of Measurement') 
     unit_panel_sizer = wx.StaticBoxSizer(unit_panel, wx.VERTICAL) 

     # Create horizontal row of widgets 1 
     hbox1 = wx.BoxSizer(wx.HORIZONTAL) 

     st1 = wx.StaticText(panel, label='UNIT:') 
     unit_choices = ['in (INCHES)', 
         'cm (CENTIMETERS)', 
         'mm (MILLIMETERS)' 
         ] 
     unit_cb = wx.ComboBox(panel, -1, '100%', 
            choices=unit_choices, 
            style=wx.CB_DROPDOWN|wx.CB_READONLY) 
     unit_cb.SetValue('mm (MILLIMETERS)') 

     hbox1.Add(st1) 
     hbox1.AddSpacer(5) 
     hbox1.Add(unit_cb) 

     # Create horizontal row of widgets 2 
     hbox2 = wx.BoxSizer(wx.HORIZONTAL) 

     st2 = wx.StaticText(panel, label='Pixels per selected unit:') 
     tc1 = wx.TextCtrl(panel) 

     hbox2.Add(st2) 
     hbox2.AddSpacer(5) 
     hbox2.Add(tc1) 

     # Create horizontal row of widgets 3 
     hbox3 = wx.BoxSizer(wx.HORIZONTAL) 
     set_button = wx.Button(panel, -1, 'Set') 
     hbox3.Add(set_button, 0, wx.CENTER) 

     # Add all other sizers to the main unit_panel_sizer 
     unit_panel_sizer.Add(hbox1) 
     unit_panel_sizer.AddSpacer(5) 
     unit_panel_sizer.Add(hbox2) 
     unit_panel_sizer.AddSpacer(5) 
     unit_panel_sizer.Add(hbox3) 

     # Fit all widgets to the sizer 
     unit_panel.SetSizerAndFit(unit_panel_sizer) 

     # Return the unit_panel_sizer 
     return unit_panel_sizer 

if __name__ == '__main__': 
    ex = wx.App() 
    Example(None, -1, "Centering Button", size=(250,150)) 
    ex.MainLoop()

谢谢亚当

来源

2012-08-02 adchilds

变化在其中添加行hbox3是

unit_panel_sizer.Add(hbox3,0,wx.CENTER)

也注释掉

unit_panel.SetSizerAndFit(unit_panel_sizer)

应该解决您的崩溃

来源

2012-08-02 17:36:39

见我编辑修复你的崩溃 – 2012-08-02 17:42:49

完美，谢谢！任何想法为什么做'unit_panel.SetSizerAndFit（unit_panel_sizer）'只在关闭时崩溃它？ – adchilds 2012-08-02 17:44:09

不知道它应该会崩溃，当你这样做可能是因为StaticBoxSizers分配他们的主人或任何时候你instansiate他们 – 2012-08-02 17:48:01

wxPython集中一个按钮和应用程序崩溃关闭

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