wxPython - 在 wx.Notebook 选项卡中居中文本？

Question

我正在为 GUI 编写一个使用 wxPython 的应用程序。我快到了，但有一些小的审美问题困扰着我。也就是说，在程序结束时（“结果”框架），我有两个嵌套笔记本。我希望页面选择选项卡的文本位于所述选项卡的中心——而不是默认的左对齐。我已经浏览了 wxPython 文档并搜索了我最好的，但没有运气。有谁知道怎么做？

我附上了一些显示我不想要的行为的最小代码（即，您选择笔记本页面的选项卡中的左对齐文本），以及来自真实的应用程序（当然，它有一个更复杂的界面——但如果它存在的话，我认为解决方案应该很简单）

import wx

class ResultFrame(wx.Frame):
    def __init__(self, parent):
        super(ResultFrame, self).__init__(parent, -1, title = "Results",
         style=wx.CAPTION|wx.CLOSE_BOX|wx.MINIMIZE_BOX|wx.SYSTEM_MENU|wx.RESIZE_BORDER)
        self.targets = ['these','are','some','strings']
        self.SetMinSize(wx.Size(1590,900))
        self.InitUI()

    def InitUI(self):
        self.mainpnl = wx.Panel(self)
        self.mainpnl.SetSize(wx.Size(1590,900))
        self.mainsizer = wx.BoxSizer(wx.HORIZONTAL)
        self.ctrlsizer = wx.BoxSizer(wx.VERTICAL)

        self.restart = wx.Button(self.mainpnl, wx.ID_ANY, "Start Over",\
         size=wx.Size(150,90))
        self.interp = wx.Button(self.mainpnl, wx.ID_ANY, "Help Interpreting\n"
         "Results", size=wx.Size(150,90))
        self.nb = wx.Notebook(self.mainpnl)
        for idx, tar in enumerate(self.targets):
            self.nb.AddPage(wx.Panel(self.nb, -1, size=wx.Size(850,820)), tar)
        self.ctrlsizer.Add(self.restart, 0, wx.ALL, 5)
        self.ctrlsizer.AddStretchSpacer()
        self.ctrlsizer.Add(self.interp, 0, wx.ALL, 5)
        self.mainsizer.Add(self.ctrlsizer, 0, wx.ALL, 0)
        self.mainsizer.Add(self.nb, 1, wx.EXPAND)
        self.mainpnl.SetSizerAndFit(self.mainsizer)

def main():
    app = wx.App()
    frm=ResultFrame(None)
    frm.Show()
    app.MainLoop()

if __name__ == "__main__":
    main()

Answer 1

在 wxPython 中，Sizers 用于布置窗口或窗口集合。
笔记本也不例外，因为它也可以使用 sizer 或 sizer 集合来布局其标签。
Sizer 允许定位和对齐。

import wx

class ResultFrame(wx.Frame):
    def __init__(self, parent):
        super(ResultFrame, self).__init__(parent, -1, title = "Results",
         style=wx.CAPTION|wx.CLOSE_BOX|wx.MINIMIZE_BOX|wx.SYSTEM_MENU|wx.RESIZE_BORDER)
        #self.targets = ['these','are','some','strings']
        self.SetMinSize(wx.Size(1000,-1))
        self.InitUI()

    def InitUI(self):
        self.mainpnl = wx.Panel(self)
        self.mainpnl.SetSize(wx.Size(1590,900))
        self.mainsizer = wx.BoxSizer(wx.HORIZONTAL)
        self.ctrlsizer = wx.BoxSizer(wx.VERTICAL)

        self.restart = wx.Button(self.mainpnl, wx.ID_ANY, "Kubla Khan",\
         size=wx.Size(150,90))
        self.interp = wx.Button(self.mainpnl, wx.ID_ANY, "Samuel Taylor Coleridge\n"
         "Biography", size=wx.Size(150,90))
        self.nb = wx.Notebook(self.mainpnl)
#        for idx, tar in enumerate(self.targets):
#            self.nb.AddPage(wx.Panel(self.nb, -1, size=wx.Size(850,820)), tar)
        tab1 = wx.Panel(self.nb, -1)
        tab2 = wx.Panel(self.nb, -1)

        msg = '''In Xanadu did Kubla Khan
A stately pleasure dome decree:
Where Alph, the sacred river, ran
Through caverns measureless to man
    Down to a sunless sea.
So twice five miles of fertile ground
With walls and towers were girdled round:
And there were gardens bright with sinuous rills,
Where blossomed many an incense-bearing tree;
And here were forests ancient as the hills,
Enfolding sunny spots of greenery.'''
        t1_text = wx.StaticText(tab1, -1, label=msg)
        t1_butt = wx.Button(tab1, -1, label="Next")
        t1sizer = wx.BoxSizer(wx.VERTICAL)
        t1sizer.Add(t1_text, 0, wx.ALIGN_CENTER|wx.ALL, 5)
        t1sizer.Add(t1_butt, 0, wx.ALIGN_RIGHT|wx.ALL, 5)
        tab1.SetSizer(t1sizer)
        self.nb.AddPage(tab1,"Stanza 1")

        msg = '''But oh! that deep romantic chasm which slanted
Down the green hill athwart a cedarn cover!
A savage place! as holy and enchanted
As e'er beneath a waning moon was haunted
By woman wailing for her demon lover!
And from this chasm, with ceaseless turmoil seething,
As if this earth in fast thick pants were breathing,
A mighty fountain momently was forced:
Amid whose swift half-intermitted burst
Huge fragments vaulted like rebounding hail,
Or chaffy grain beneath the thresher's flail:
And ’mid these dancing rocks at once and ever
It flung up momently the sacred river.
Five miles meandering with a mazy motion
Through wood and dale the sacred river ran,
Then reached the caverns measureless to man,
And sank in tumult to a lifeless ocean:
And ’mid this tumult Kubla heard from far
Ancestral voices prophesying war!'''
        t2_text = wx.StaticText(tab2, -1, label=msg)
        t2_pbutt = wx.Button(tab2, -1, label="Prev")
        t2_nbutt = wx.Button(tab2, -1, label="Next")
        t2sizer = wx.BoxSizer(wx.VERTICAL)
        t2sizer.Add(t2_text, 0, wx.ALIGN_CENTER|wx.ALL, 5)
        t2sizer.Add(t2_pbutt, 0, wx.ALIGN_RIGHT|wx.ALL, 5)
        t2sizer.Add(t2_nbutt, 0, wx.ALIGN_RIGHT|wx.ALL, 5)
        tab2.SetSizer(t2sizer)
        self.nb.AddPage(tab2,"Stanza 2")
        
        self.ctrlsizer.Add(self.restart, 0, wx.ALL, 5)
        self.ctrlsizer.AddStretchSpacer()
        self.ctrlsizer.Add(self.interp, 0, wx.ALL, 5)
        self.mainsizer.Add(self.ctrlsizer, 0, wx.ALL, 0)
        self.mainsizer.Add(self.nb, 1, wx.EXPAND)
        self.mainpnl.SetSizerAndFit(self.mainsizer)

        t1_butt.Bind(wx.EVT_BUTTON, self.Next)
        t2_nbutt.Bind(wx.EVT_BUTTON, self.Next)
        t2_pbutt.Bind(wx.EVT_BUTTON, self.Prev)

    def Next(self, event):
        p = self.nb.GetSelection()
        p += 1 
        p = min(p, self.nb.GetRowCount())
        self.nb.SetSelection(p)

    def Prev(self, event):
        p = self.nb.GetSelection()
        p -= 1 
        p = max(0, p)
        self.nb.SetSelection(p)

def main():
    app = wx.App()
    frm=ResultFrame(None)
    frm.Show()
    app.MainLoop()

if __name__ == "__main__":
    main()