Question

点击按钮后，我正在尝试切换新面板。我创建了一个带有两个选项卡（笔记本）的面板，每个选项卡都有按钮。单击这些按钮将切换到新面板。但是，我遇到了一些错误。这是我的代码：

import wx

page1 = None;
page2 = None;

# create a new panel
class NewPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        panel = wx.Panel(self, size = (800, 600))
        vbox = wx.BoxSizer(wx.VERTICAL)
        button8 = wx.Button(self, label="Button Two", pos=(0, 0))

# the first notebook created on the panel.
class BookOne(wx.Panel): 
    def __init__(self, parent):        
        wx.Panel.__init__(self, parent)
        panel = wx.Panel(self, size = (800,600))

        vbox = wx.BoxSizer(wx.VERTICAL)

        button1 = wx.Button(panel, -1, "Button One", (0, 20), size = (200, 30))
        button1.Bind(wx.EVT_BUTTON, self.onSwitchPanels1)

    def onSwitchPanels1(self, event):
        if self.page1.IsShown():
           self.SetTitle("Panel")
           self.page1.Hide()
           self.new_panel.Show()
        else:
           self.SetTitle("Panel")
           self.page1.Show()
           self.new_panel.Hide()
        self.Layout()


# second notebook created on the same panel.
class BookTwo(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        panel = wx.Panel(self, size = (800,600))
        #self.mypanel = wx.Panel(self, -1, size = (800, 600))

        vbox = wx.BoxSizer(wx.VERTICAL)

        button7 = wx.Button(panel, -1, "Button A", (0, 20), size = (200, 30))
        #button7.Bind(wx.EVT_BUTTON, parent.onSwitchPanels7)
        button8 = wx.Button(panel, -1, "Button B", (0, 70), size = (200, 30))
        #button8.Bind(wx.EVT_BUTTON, parent.onSwitchPanels8)


# the main frame/panel/windows.
class MainFrame(wx.Frame):
    def __init__(self):
        self.something  = "something";
        wx.Frame.__init__(self, None,title="My Panel", size=(800, 600))

        # Here we create a panel and a notebook on the panel
        p = wx.Panel(self)
        nb = wx.Notebook(p)

        global page1,page2;

        # create the page windows as children of the notebook
        page1 = BookOne(nb)
        page2 = BookTwo(nb)

        # add the pages to the notebook with the label to show on the tab
        nb.AddPage(page1, "Tab One")
        nb.AddPage(page2, "Tab Two")


        # finally, put the notebook in a sizer for the panel to manage
        # the layout
        sizer = wx.BoxSizer()
        sizer.Add(nb, 1, wx.EXPAND)
        p.SetSizer(sizer)


        self.page1 = BookOne(nb)
        self.page1.Hide()
        self.new_panel = NewPanel(p)
        self.new_panel.Hide()

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.page1, 1, wx.EXPAND)
        self.sizer.Add(self.new_panel, 1, wx.EXPAND)
        #self.SetSizer(self.sizer)


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

我尝试了一些解决方案，但在点击“按钮1”按钮后，第二个面板不会出现。

Answer 1

首先，当我点击Button One

时，您会收到错误消息

Traceback (most recent call last):
  File "<pyshell#10>", line 28, in onSwitchPanels1
AttributeError: 'PageOne' object has no attribute 'page1'

修改

我做了一些修改 - 现在它显示/隐藏tab three和tab four
但我认为我并不了解你到底该做什么。

也许这段代码可以帮助你做你真正需要的事情。

最重要的部分是.GetParent() - 我用它来访问主类中的元素。

我删除了global因为我认为我们使用类不使用globals

import wx import os wildcard = "All files (*.*)|*.*" class PanelThree(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) vbox = wx.BoxSizer(wx.VERTICAL) button8 = wx.Button(self, label="Button Two", pos=(0, 0)) # the first tab created. class PageOne(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) vbox = wx.BoxSizer(wx.VERTICAL) button1 = wx.Button(self, -1, "Button One", (0, 20), size = (200, 30)) button1.Bind(wx.EVT_BUTTON, self.onSwitchPanels1) def onSwitchPanels1(self, event): if self.GetParent().GetParent().GetParent().page1.IsShown(): #self.SetTitle("Panel") self.GetParent().GetParent().GetParent().page1.Hide() self.GetParent().GetParent().GetParent().panel_two.Show() else: #self.SetTitle("Panel") self.GetParent().GetParent().GetParent().page1.Show() self.GetParent().GetParent().GetParent().panel_two.Hide() self.Layout() # second tab created. class PageTwo(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) vbox = wx.BoxSizer(wx.VERTICAL) button7 = wx.Button(self, -1, "Button A", (0, 20), size = (200, 30)) #button7.Bind(wx.EVT_BUTTON, parent.onSwitchPanels7) button8 = wx.Button(self, -1, "Button B", (0, 70), size = (200, 30)) #button8.Bind(wx.EVT_BUTTON, parent.onSwitchPanels8) # the main frame/panel/windows. class MainFrame(wx.Frame): def __init__(self): self.something = "something"; wx.Frame.__init__(self, None,title="My Panel", size=(800, 600)) # Here we create a panel and a notebook on the panel p = wx.Panel(self) nb = wx.Notebook(p) # create the page windows as children of the notebook self.page1a = PageOne(nb) self.page2a = PageTwo(nb) # add the pages to the notebook with the label to show on the tab nb.AddPage(self.page1a, "Tab One") nb.AddPage(self.page2a, "Tab Two") # finally, put the notebook in a sizer for the panel to manage # the layout sizer = wx.BoxSizer() sizer.Add(nb, 1, wx.EXPAND) p.SetSizer(sizer) self.page1 = PageOne(nb) self.page1.Hide() self.panel_two = PanelThree(nb) self.panel_two.Hide() nb.AddPage(self.page1, "Tab Three") nb.AddPage(self.panel_two, "Tab Four") self.sizer = wx.BoxSizer(wx.VERTICAL) self.sizer.Add(self.page1, 1, wx.EXPAND) self.sizer.Add(self.panel_two, 1, wx.EXPAND) #self.SetSizer(self.sizer) if __name__ == "__main__": app = wx.App() MainFrame().Show() app.MainLoop()

无法切换到新面板

1 个答案: