如何在wxPython的Frame中实现字段之间的Tab切换

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2 回答
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提问于 2025-04-17 17:55

我刚接触wxPython,按照一个教程创建了一些文本输入框和其他东西。这个教程的链接是:http://sebsauvage.net/python/gui/#import

一切都正常,除了我无法通过Tab键在这些输入框之间切换,这让我很烦恼。我想知道如何修改这个教程中的例子(我还想加一些文本输入框),这样我就可以用Tab键在输入框之间切换了。

如果你不想看教程,简单来说就是一个框架,上面放了一堆文本输入框,使用了GridBagSizer布局。

我在网上搜索时,只找到“创建一个面板”的建议,但我试过了,由于我对wxPython还很陌生,这个方法没有成功,而且我找不到详细的教程来指导我该怎么做(如果可以的话,我希望只用一个框架...)

谢谢!

2 个回答

0

这是我之前做的一个东西,虽然不是很好,但我相信你可以根据自己的需要进行改进。

import os
import wx

class tab(wx.Panel):
    def __init__(self, parent, newid=0, name="New Tab", file=None, aNewTab=False):
        wx.Panel.__init__(self, parent)
        self.control = wx.TextCtrl(self, style=wx.TE_MULTILINE)
        sizer = wx.BoxSizer()
        sizer.Add(self.control, -1, wx.EXPAND, newid)
        self.SetSizer(sizer)
        if file != None:
            self.control.write(file)
        else:
            pass

class MainWindow(wx.Frame):

    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, title=title, size=(1000,900))
        self.CreateStatusBar()

        self.buttons = []

        filemenu = wx.Menu()
        helpmenu = wx.Menu()

        menuOpen = filemenu.Append(wx.ID_OPEN, "&Open", "Open a file to edit")
        menuSave = filemenu.Append(wx.ID_SAVE, "&Save", "Save the current file")
        menuSaveAs = filemenu.Append(wx.ID_SAVEAS, "&Save As", "Save the current file as")
        menuExit = filemenu.Append(wx.ID_EXIT, "E&xit", "Terminate the program")
        menuAbout = helpmenu.Append(wx.ID_ABOUT, "&About", "Information about this program,")

        menuBar = wx.MenuBar()
        menuBar.Append(filemenu, "&File") 
        menuBar.Append(helpmenu, "&Help")
        self.SetMenuBar(menuBar)

        self.openFiles = { }


        self.p = wx.Panel(self)
        self.nb = wx.Notebook(self.p)
        self.newTab = tab(self.nb)
        self.nb.AddPage(self.newTab, "New Tab")
        self.sizer = wx.BoxSizer()
        self.sizer.Add(self.nb, 1, wx.EXPAND)
        self.p.SetSizer(self.sizer)

        #new ids
        saveid = wx.NewId()
        openid = wx.NewId()
        boldid = wx.NewId()

        #Set Events
        self.Bind(wx.EVT_MENU, self.OnAbout, menuAbout)
        self.Bind(wx.EVT_MENU, self.OnExit, menuExit)
        self.Bind(wx.EVT_MENU, self.OnOpen, menuOpen)
        self.Bind(wx.EVT_MENU, self.OnSave, menuSave)
        self.Bind(wx.EVT_MENU, self.OnSave, menuSaveAs)
        # Events that are activated when buttons are pressed
        self.Bind(wx.EVT_MENU, self.OnSave, id=saveid)
        self.Bind(wx.EVT_MENU, self.OnOpen, id=openid)
        self.Bind(wx.EVT_MENU, self.OnBold, id=boldid)

        self.accel_tbl = wx.AcceleratorTable([(wx.ACCEL_CTRL, ord('S'), saveid),
                                              (wx.ACCEL_CTRL, ord('O'), openid),
                                              (wx.ACCEL_CTRL, ord('B'), boldid)])
        self.SetAcceleratorTable(self.accel_tbl)

        self.Show(True)

    def OnAbout(self,e):
        dlg = wx.MessageDialog(self, "A simple text editor", "About Simple Editor", wx.OK)
        dlg.ShowModal()
        dlg.Destroy()

    def OnExit(self,e):
        if self.control.IsModified:
            dlg = wx.MessageDialog(self, "If you quit now all your work will be erased. Do you still want to quit?", "Are You Sure?", wx.YES_NO | wx.ICON_QUESTION)
            a = dlg.ShowModal()
            if a == wx.ID_YES:
                self.Close(True)
            else:
                self.OnSave(self, True)

    def OnOpen(self,e):
        """
        Open a File
        """
        self.dirname = ''
        dlg = wx.FileDialog(self, "Choose a file", self.dirname, "", "*.*", wx.FD_OPEN)
        if dlg.ShowModal() == wx.ID_OK:
            self.filename = dlg.GetFilename()
            self.dirname = dlg.GetDirectory()
            f = open(os.path.join(self.dirname, self.filename), 'r')
        newTab = tab(self.nb, name=self.filename, file=f.read(), aNewTab=True)
        self.nb.AddPage(newTab, "%s" %(self.filename))
        f.close()
        self.SetTitle("Simple Editor - %s" %(self.filename))
        dlg.Destroy()

    def OnSave(self,e, exit=False):
        """
        Save a file
        """
        #if self.newTab.control.IsEmpty():
            #dlg = wx.
        self.dirname = ''
        dlg = wx.FileDialog(self, "Where do you want to save this file?", self.dirname, "", "*.*", wx.FD_SAVE)
        if dlg.ShowModal() == wx.ID_OK:
            self.filename = dlg.GetFilename()
            self.dirname = dlg.GetDirectory()
            f = open(os.path.join(self.dirname, self.filename), 'w')
            a = str(self.control.GetValue())
            f.write(a)
            f.close()
        dlg.Destroy()
        if exit != False:
            self.Close(True)
        self.SetTitle("Simple Editor - %s" %(self.filename))

app = wx.App(False)
frame = MainWindow(None, "Simple Editor")
app.MainLoop()
1

你需要在窗口中添加一个 wx.Panel,然后把这个面板对象作为父级,给其他所有的控件使用。wx.Panel 可以让你使用标签页功能,并且让窗口在不同的平台上看起来更合适(颜色大多是对的)。如果没有这个面板,标签页功能就无法使用。

可以看看这个讨论,wxPython 的创建者 Robin Dunn 也说了同样的事情: https://groups.google.com/forum/?fromgroups=#!topic/wxpython-users/gF8r_HwnOEU

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