wxpython:在sizer中的面板中居中文本

Question

在我看来,以下代码应该在窗口的中心显示文本; 也就是说,在内板的中心.然而,它并没有,我想知道为什么不.如果运行代码,您将在框架中间看到一个白色面板,150px乘150px.我根本不希望这个区域的大小发生变化,但是当我开始添加一些文本(txt在代码片段中间取消注释变量)时,面板总是收缩以适应文本.即使指定StaticText与面板匹配的大小也不是解决方案,因为文本不会居中对齐.

import wx

class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title)




        self.rootPanel = wx.Panel(self)

        innerPanel = wx.Panel(self.rootPanel,-1, size=(150,150), style=wx.ALIGN_CENTER)
        innerPanel.SetBackgroundColour('WHITE')
        hbox = wx.BoxSizer(wx.HORIZONTAL) 
        vbox = wx.BoxSizer(wx.VERTICAL)

        # I want this line visible in the CENTRE of the inner panel
        #txt = wx.StaticText(innerPanel, id=-1, label="TEXT HERE",style=wx.ALIGN_CENTER, name="")

        hbox.Add(innerPanel, 0, wx.ALL|wx.ALIGN_CENTER)
        vbox.Add(hbox, 1, wx.ALL|wx.ALIGN_CENTER, 5)

        self.rootPanel.SetSizer(vbox)
        vbox.Fit(self)

class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, -1, 'wxBoxSizer.py')
        frame.Show(True)
        frame.Center()
        return True

app = MyApp(0)
app.MainLoop()

Answer 1

您只需添加几个垫片即可使其正常工作.

import wx

class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title)

        self.rootPanel = wx.Panel(self)

        innerPanel = wx.Panel(self.rootPanel,-1, size=(150,150), style=wx.ALIGN_CENTER)
        innerPanel.SetBackgroundColour('WHITE')
        hbox = wx.BoxSizer(wx.HORIZONTAL) 
        vbox = wx.BoxSizer(wx.VERTICAL)
        innerBox = wx.BoxSizer(wx.VERTICAL)

        # I want this line visible in the CENTRE of the inner panel
        txt = wx.StaticText(innerPanel, id=-1, label="TEXT HERE",style=wx.ALIGN_CENTER, name="")
        innerBox.AddSpacer((150,75))
        innerBox.Add(txt, 0, wx.CENTER)
        innerBox.AddSpacer((150,75))
        innerPanel.SetSizer(innerBox)

        hbox.Add(innerPanel, 0, wx.ALL|wx.ALIGN_CENTER)
        vbox.Add(hbox, 1, wx.ALL|wx.ALIGN_CENTER, 5)

        self.rootPanel.SetSizer(vbox)
        vbox.Fit(self)

class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, -1, 'wxBoxSizer.py')
        frame.Show(True)
        frame.Center()
        return True

app = MyApp(0)
app.MainLoop()