wxPython: displaying multiple widgets in same frame

问题

I would like to be able to display Notebook and a TxtCtrl wx widgets in a single frame. Below is an example adapted from the wxpython wiki; is it possible to change their layout (maybe with something like wx.SplitterWindow) to display the text box below the Notebook in the same frame?

import wx
import wx.lib.sheet as sheet

class MySheet(sheet.CSheet):
    def __init__(self, parent):
        sheet.CSheet.__init__(self, parent)

        self.SetLabelBackgroundColour('#CCFF66')
        self.SetNumberRows(50)
        self.SetNumberCols(50)


class Notebook(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(600, 600))
        menubar = wx.MenuBar()
        file = wx.Menu()
        file.Append(101, 'Quit', '' )
        menubar.Append(file, "&File")
        self.SetMenuBar(menubar)
        wx.EVT_MENU(self, 101, self.OnQuit)
        nb = wx.Notebook(self, -1, style=wx.NB_BOTTOM)
        self.sheet1 = MySheet(nb)
        self.sheet2 = MySheet(nb)
        self.sheet3 = MySheet(nb)
        nb.AddPage(self.sheet1, "Sheet1")
        nb.AddPage(self.sheet2, "Sheet2")
        nb.AddPage(self.sheet3, "Sheet3")
        self.sheet1.SetFocus()
        self.StatusBar()

    def StatusBar(self):
        self.statusbar = self.CreateStatusBar()

    def OnQuit(self, event):
        self.Close()


class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, wx.Size(450, 400))
        self.text = wx.TextCtrl(self, -1, style = wx.TE_MULTILINE)
        self.Center()

class MyApp(wx.App):
    def OnInit(self):
        frame = Notebook(None, -1, 'notebook.py')
        frame.Show(True)
        frame.Center()
        frame2 = MyFrame(None, -1, '')
        frame2.Show(True)
        self.SetTopWindow(frame2)
        return True


app = MyApp(0)
app.MainLoop()

回答1:

Making two widgets appear on the same frame is easy, actually. You should use sizers to accomplish this.

In your example, you can change your Notebook class implementation to something like this:

class Notebook(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(600, 600))
        menubar = wx.MenuBar()
        file = wx.Menu()
        file.Append(101, 'Quit', '' )
        menubar.Append(file, "&File")
        self.SetMenuBar(menubar)
        wx.EVT_MENU(self, 101, self.OnQuit)
        nb = wx.Notebook(self, -1, style=wx.NB_BOTTOM)
        self.sheet1 = MySheet(nb)
        self.sheet2 = MySheet(nb)
        self.sheet3 = MySheet(nb)
        nb.AddPage(self.sheet1, "Sheet1")
        nb.AddPage(self.sheet2, "Sheet2")
        nb.AddPage(self.sheet3, "Sheet3")
        self.sheet1.SetFocus()
        self.StatusBar()
        # new code begins here:
        # add your text ctrl:
        self.text = wx.TextCtrl(self, -1, style = wx.TE_MULTILINE)
        # create a new sizer for both controls:
        sizer = wx.BoxSizer(wx.VERTICAL)
        # add notebook first, with size factor 2:
        sizer.Add(nb, 2)
        # then text, size factor 1, maximized
        sizer.Add(self.text, 1, wx.EXPAND)
        # assign the sizer to Frame:
        self.SetSizerAndFit(sizer)

Only the __init__ method is changed. Note that you can manipulate the proportions between the notebook and text control by changing the second argument of the Add method.

You can learn more about sizers from the official Sizer overview article.