wxPython：第二和第三個面板不顯示/錯誤

我的程序有3個面板，我通過隱藏2和顯示1來切換。 1似乎工作，因爲當我切換到第二或第三，框架是灰色的，除了在左上角的一個小白盒。這是什麼造成的？任何幫助，將不勝感激。（代碼供給下文）wxPython：第二和第三個面板不顯示/錯誤

屏幕截圖：

https://i.stack.imgur.com/3A6BN.png - 第一面板

https://i.stack.imgur.com/kiGPC.png - 第二面板

https://i.stack.imgur.com/dUUyZ.png - 第三面板

代碼：

#!/usr/bin/python 

import wx 
import webbrowser 
from wx.lib import sized_controls 
from wx.lib.mixins.listctrl import ListCtrlAutoWidthMixin 
import sys 

employees = [('jessica alba', 'pomona', '1981'), ('sigourney weaver', 'new york', '1949'), 
    ('angelina jolie', 'los angeles', '1975'), ('natalie portman', 'jerusalem', '1981'), 
    ('rachel weiss', 'london', '1971'), ('scarlett johansson', 'new york', '1984'), ('jessica alba', 'pomona', '1981'), ('sigourney weaver', 'new york', '1949'), 
    ('angelina jolie', 'los angeles', '1975'), ('natalie portman', 'jerusalem', '1981'), 
    ('rachel weiss', 'london', '1971'), ('scarlett johansson', 'new york', '1984')] 

ID_GMAIL = wx.NewId() 
ID_OUTLOOK = wx.NewId() 

####################################################################################################################### 


class AutoWidthListCtrl(wx.ListCtrl, ListCtrlAutoWidthMixin): 
    def __init__(self, parent): 
     wx.ListCtrl.__init__(self, parent, -1, pos=(120, 55), size=(400, 240), style=wx.LC_REPORT) 
     ListCtrlAutoWidthMixin.__init__(self) 


class CustomDialog(sized_controls.SizedDialog): 
    def __init__(self, *args, **kwargs): 
     super(CustomDialog, self).__init__(*args, **kwargs) 
     pane = self.GetContentsPane() 

     static_text = wx.StaticText(pane, label='Choose Your Platform', style=wx.ALIGN_CENTER) 
     static_text.SetSizerProps(border=('all', 0), expand=True) 

     pane_btns = sized_controls.SizedPanel(pane) 
     pane_btns.SetSizerType('horizontal') 
     pane_btns.SetSizerProps(align='center') 

     button_ok = wx.Button(pane_btns, ID_GMAIL, label='Gmail') 
     button_ok.Bind(wx.EVT_BUTTON, self.on_button) 

     button_ok = wx.Button(pane_btns, ID_OUTLOOK, label='Outlook') 
     button_ok.Bind(wx.EVT_BUTTON, self.on_button) 

     self.Fit() 
     self.Centre() 

    def on_button(self, event): 
     if self.IsModal(): 
      self.EndModal(event.EventObject.Id) 
     else: 
      self.Close() 

####################################################################################################################### 

class GUI(wx.Frame): 
    def __init__(self, *args): 
     super(GUI, self).__init__(*args, 
            style=wx.MINIMIZE_BOX | wx.SYSTEM_MENU | wx.CAPTION | wx.CLOSE_BOX | wx.CLIP_CHILDREN) 

     self.InitUI() 

    def InitUI(self): 
     self.CreateStatusBar() 
     self.menubar = wx.MenuBar() 
     self.menu = wx.Menu() 

     self.add_entry = wx.MenuItem(self.menu, 3, '&Add Entry/View List\tShift+A', 'Add Employee to List/View List') 
     self.birthday_t = wx.MenuItem(self.menu, 1, '&Birthdays: Today\tShift+T', 'View Current Birthdays') 
     self.birthday_s = wx.MenuItem(self.menu, 2, '&Birthdays: In 7 Days\tShift+S', 'View Birthdays in 7 Days') 
     self.quit = wx.MenuItem(self.menu, wx.ID_EXIT, '&Quit\tESC', 'Quit application') 

     self.menu.AppendItem(self.add_entry) 
     self.menu.AppendItem(self.birthday_t) 
     self.menu.AppendItem(self.birthday_s) 
     self.menu.AppendSeparator() 
     self.menu.AppendItem(self.quit) 

     self.birthday_t.Enable(False) 

     self.menubar.Append(self.menu, '&View') 

     self.SetMenuBar(self.menubar) 

####################################################################################################################### 

     self.panel_one = wx.Panel(self) 
     self.panel_two = wx.Panel(self) 
     self.panel_three = wx.Panel(self) 

     self.panel_one.Show() 
     self.panel_two.Hide() 
     self.panel_three.Hide() 

     vbox = wx.BoxSizer(wx.VERTICAL) 

     vbox.Add(self.panel_one, 1, wx.EXPAND) 
     vbox.Add(self.panel_two, 1, wx.EXPAND) 
     vbox.Add(self.panel_three, 1, wx.EXPAND) 
     self.SetSizer(vbox) 

     p1vbox = wx.BoxSizer(wx.HORIZONTAL) 
     p2vbox = wx.BoxSizer(wx.HORIZONTAL) 
     p3vbox = wx.BoxSizer(wx.HORIZONTAL) 

     self.panel_one.SetSizer(p1vbox) 
     self.panel_two.SetSizer(p2vbox) 
     self.panel_three.SetSizer(p3vbox) 

####################################################################################################################### 

     self.email_button1 = wx.Button(self.panel_one, id=3, label='Send an Email', size=(100, 30)) 
     self.email_button2 = wx.Button(self.panel_two, id=3, label='Send an Email', size=(100, 30)) 

     p1vbox.AddStretchSpacer() 
     p1vbox.Add(self.email_button1, flag=wx.ALIGN_CENTER | wx.ALIGN_BOTTOM | wx.ALL, border=17) 
     p1vbox.AddStretchSpacer() 

     p2vbox.AddStretchSpacer() 
     p2vbox.Add(self.email_button2, flag=wx.ALIGN_CENTER | wx.ALIGN_BOTTOM | wx.ALL, border=17) 
     p2vbox.AddStretchSpacer() 

####################################################################################################################### 

     self.list = AutoWidthListCtrl(self.panel_one) 
     self.list.InsertColumn(0, 'Name', width=140) 
     self.list.InsertColumn(1, 'E-mail', width=130) 
     self.list.InsertColumn(2, 'Birthday', width=90) 

     for i in employees: 
      index = self.list.InsertStringItem(sys.maxint, i[0]) 
      self.list.SetStringItem(index, 1, i[1]) 
      self.list.SetStringItem(index, 2, i[2]) 

####################################################################################################################### 

     self.birthday_text_t = wx.StaticText(self.panel_one, label='BIRTHDAYS: TODAY', pos=(210, 15)) 
     self.birthday_text_s = wx.StaticText(self.panel_two, label='BIRTHDAYS: IN 7 DAYS', pos=(180, 15)) 
     self.add_entry_text_a = wx.StaticText(self.panel_three, label='ADD EMPLOYEE/LIST OF BIRTHDAYS', pos=(180, 15)) 
     self.grats = wx.StaticText(self.panel_one, label='GIVE YOUR CONGRATULATIONS', pos=(230, 310)) 

     birthday_text_t_font = wx.Font(18, wx.TELETYPE, wx.NORMAL, wx.BOLD) 
     self.birthday_text_t.SetFont(birthday_text_t_font) 

     birthday_text_s_font = wx.Font(13, wx.MODERN, wx.NORMAL, wx.BOLD) 
     self.birthday_text_s.SetFont(birthday_text_s_font) 

     grats_font = wx.Font(9, wx.SWISS, wx.NORMAL, wx.BOLD) 
     self.grats.SetFont(grats_font) 

     self.Bind(wx.EVT_MENU, self.onQuit, self.quit) 
     self.Bind(wx.EVT_KEY_DOWN, self.onESCQuit, self.quit) 

     self.Bind(wx.EVT_MENU, self.onPanelSwap, self.birthday_t) 
     self.Bind(wx.EVT_KEY_DOWN, self.onPanelSwap_t, self.birthday_t) 

     self.Bind(wx.EVT_MENU, self.onPanelSwap, self.birthday_s) 
     self.Bind(wx.EVT_KEY_DOWN, self.onPanelSwap_s, self.birthday_s) 

     self.Bind(wx.EVT_MENU, self.onPanelSwap, self.add_entry) 
     self.Bind(wx.EVT_KEY_DOWN, self.onPanelSwap_a, self.add_entry) 

     self.email_button1.Bind(wx.EVT_BUTTON, self.onClick) 
     self.email_button2.Bind(wx.EVT_BUTTON, self.onClick) 

####################################################################################################################### 

     self.SetSize((650, 450)) 

     self.SetTitle('Prototype') 

     self.Centre() 

     self.Show(True) 

####################################################################################################################### 

    def onQuit(self, event): 
     dial = wx.MessageDialog(None, 'Are you sure to quit?', 'Question', wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION) 
     dial = dial.ShowModal() 

     if dial == wx.ID_YES: 
      self.Close() 

    def onESCQuit(self, event): 

     if event.GetKey() == wx.WXK_ESCAPE: 
      dial = wx.MessageDialog(None, 'Are you sure to quit?', 'Question', 
            wx.YES_NO | wx.NO_DEFAULT | wx.ICON_QUESTION) 

      if dial.ShowModal() == wx.ID_YES: 
       self.Close() 

####################################################################################################################### 

    def onPanelSwap(self, event): 
     event_id = event.GetId() 
     if self.panel_one.IsShown() and event_id == 3: 
      self.panel_one.Hide() 
      self.panel_two.Hide() 
      self.panel_three.Show() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(False) 

     elif self.panel_one.IsShown() and event_id == 2: 
      self.panel_one.Hide() 
      self.panel_two.Show() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(False) 
      self.add_entry.Enable(True) 

     elif self.panel_two.IsShown() and event_id == 3: 
      self.panel_one.Hide() 
      self.panel_two.Hide() 
      self.panel_three.Show() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(False) 

     elif self.panel_two.IsShown() and event_id == 1: 
      self.panel_one.Show() 
      self.panel_two.Hide() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(False) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(True) 

     elif self.panel_three.IsShown() and event_id == 2: 
      self.panel_one.Hide() 
      self.panel_two.Show() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(False) 
      self.add_entry.Enable(True) 

     elif self.panel_three.IsShown() and event_id == 1: 
      self.panel_one.Show() 
      self.panel_two.Hide() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(False) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(True) 

     event.Skip() 

####################################################################################################################### 

    def onPanelSwap_t(self, event): 
     if event.GetKey == 'shift+c': 
      self.panel_one.Show() 
      self.panel_two.Hide() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(False) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(True) 

     event.Skip() 

    def onPanelSwap_s(self, event): 
     if event.GetKey == 'shift+s': 
      self.panel_one.Hide() 
      self.panel_two.Show() 
      self.panel_three.Hide() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(False) 
      self.add_entry.Enable(True) 

     event.Skip() 

    def onPanelSwap_a(self, event): 
     if event.GetKey == 'shift+a': 
      self.panel_one.Hide() 
      self.panel_two.Hide() 
      self.panel_three.Show() 

      self.birthday_t.Enable(True) 
      self.birthday_s.Enable(True) 
      self.add_entry.Enable(False) 

     event.Skip() 

####################################################################################################################### 

    def onClick(self, event): 
     dlg = CustomDialog(None, title='E-mail Your Colleague') 
     result = dlg.ShowModal() 
     if result == ID_GMAIL: 
      chrome_path = 'C:/Program Files (x86)/Google/Chrome/Application/chrome.exe %s' 
      webbrowser.get(chrome_path).open('https://mail.google.com/mail') 
     elif result == ID_OUTLOOK: 
      chrome_path = 'C:/Program Files (x86)/Google/Chrome/Application/chrome.exe %s' 
      webbrowser.get(chrome_path).open('https://outlook.live.com') 
     dlg.Destroy() 

####################################################################################################################### 

def main(): 
    app = wx.App() 
    GUI(None) 
    app.MainLoop() 


if __name__ == '__main__': 
    main()

來源

2016-10-22 javanewbie

也許使用[wx.Notebook（https://wiki.wxpython.org/Simple%20wx。 Notebook％20Example），它是爲了顯示許多面板而創建的。 – furas

正如我知道BoxSizer將面板放在單獨的單元格中，並使用面板大小來計算單元格大小。嘗試在開始時對所有面板使用Show()，並且您可以同時看到所有面板 - 一個在另一個之下。

當您隱藏第一個面板時，BoxSizer不會重新計算單元格大小，它仍然顯示第一個單元格，但隱藏面板，因此您不會看到其他面板。您可以使用self.Layout()來強制所有窗口重新計算大小。

def onPanelSwap(self, event): 

    ... 

    self.Layout() 

    event.Skip()

BTW：你可以使用它的設立是爲了顯示許多面板wx.Notebook - Example

來源

2016-10-22 11:01:28 furas

我不知道wx.Notebook。下次我會記住它。 :) self.Layout（）修復了這個問題，謝謝。 – javanewbie

wxPython：第二和第三個面板不顯示/錯誤

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