在 wxpython 中单击选项卡时，如何在笔记本中加载类？

Question

在这里，我怀疑当时单击笔记本选项卡时，只有它应该在该选项卡中加载类。但是在 wxpython 中，默认情况下所有类都加载到选项卡中，所以我如何在单击选项卡时设置条件来加载类。 这是一个小例子。

import wx

class tabclass(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        t = wx.StaticText(self, -1, "This is the help tab", (20,20))

class MainFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="notebook")
        mainPanel = wx.Panel(self,size=(1365, 700), pos=(0, 71), style=wx.DOUBLE_BORDER)
        self.nb = wx.Notebook(mainPanel,size=(1365, 700))
        tab0 = tabclass(self.nb)
        self.nb.AddPage(tab0, "Tab One")

if __name__ == "__main__":
    app = wx.App()  
    MainFrame().Show()
    app.MainLoop()
    

这里我想在单击选项卡时显示静态文本，否则类不应该加载。

Answer 1

您可能需要一种不同的方法来选择笔记本中显示的内容和不显示的内容。
例如，菜单似乎是一个合适的选择工具。
即

import wx

class tabclass(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        t = wx.StaticText(self, -1, "This is the help tab", (20,20))

class MainFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="notebook")
        mainPanel = wx.Panel(self,size=(1365, 700), pos=(0, 71), style=wx.DOUBLE_BORDER)
        self.nb = wx.Notebook(mainPanel,size=(1365, 700))

        tabmenu = wx.Menu()
        t1 = wx.MenuItem(tabmenu, id = -1, text="Help", kind=wx.ITEM_CHECK)
        tabmenu.Append(t1)
        t2 = wx.MenuItem(tabmenu, id = -1, text="Other tab", kind=wx.ITEM_CHECK)
        tabmenu.Append(t2)
        t3 = wx.MenuItem(tabmenu, id = -1, text="Another tab", kind=wx.ITEM_CHECK)
        tabmenu.Append(t3)
        tabmenu.Append(wx.ID_EXIT, '&Quit')

        # Creating the menubar.
        menuBar = wx.MenuBar()
        # Add menus
        menuBar.Append(tabmenu, "&Tabs")
        # Adding the MenuBar to the Frame content.
        self.SetMenuBar(menuBar)
        # Bind menu item to functions
        self.Bind(wx.EVT_MENU, self.helptab, t1)
        self.Bind(wx.EVT_MENU, self.othertab, t2)
        self.Bind(wx.EVT_MENU, self.anothertab, t3)
        self.Bind(wx.EVT_MENU, self.OnQuit, id=wx.ID_EXIT)

    # Obviously, here you would differentiate your tabs
    # I have used the same one for brevity
    def helptab(self, event):
        if event.IsChecked():
            self.tab0 = tabclass(self.nb)
            self.nb.AddPage(self.tab0, "Help Tab")
        else:
            #Delete the "Help Tab"
            pass

    def othertab(self, event):
        if event.IsChecked():
            self.tab1 = tabclass(self.nb)
            self.nb.AddPage(self.tab1, "Other Tab")
        else:
            #Delete the "Other Tab"
            pass

    def anothertab(self, event):
        if event.IsChecked():
            self.tab2 = tabclass(self.nb)
            self.nb.AddPage(self.tab2, "Another Tab")
        else:
            #Delete the "Another Tab"
            pass

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

if __name__ == "__main__":
    app = wx.App()
    MainFrame().Show()
    app.MainLoop()