使用按钮wxpython更改面板

Question

import wx
import wx.grid as gridlib

########################################################################
class PanelOne(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent=parent)
        txt = wx.TextCtrl(self)
        button =wx.Button(self, label="Save", pos=(200, 325))
        button.Bind(wx.EVT_BUTTON, self.onSwitchPanels)

########################################################################
class PanelTwo(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent=parent)

        grid = gridlib.Grid(self)
        grid.CreateGrid(25,12)

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(grid, 0, wx.EXPAND)
        self.SetSizer(sizer)

########################################################################
class MyForm(wx.Frame):

    #----------------------------------------------------------------------
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY,
                          "Panel Switcher Tutorial")

        self.panel_one = PanelOne(self)
        self.panel_two = PanelTwo(self)
        self.panel_two.Hide()

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.panel_one, 1, wx.EXPAND)
        self.sizer.Add(self.panel_two, 1, wx.EXPAND)
        self.SetSizer(self.sizer)

        menubar = wx.MenuBar()
        fileMenu = wx.Menu()
        switch_panels_menu_item = fileMenu.Append(wx.ID_ANY,
                                                  "Switch Panels",
                                                  "Some text")
        self.Bind(wx.EVT_MENU, self.onSwitchPanels,
                  switch_panels_menu_item)
        menubar.Append(fileMenu, '&File')
        self.SetMenuBar(menubar)

    #----------------------------------------------------------------------
    def onSwitchPanels(self, event):

       if self.panel_one.IsShown():    
          self.SetTitle("Panel Two Showing")
          self.panel_one.Hide
          self.panel_two.Show()
       else:
          self.SetTitle("Panel One Showing")
          self.panel_one.Show()
          self.panel_two.Hide()
          self.Layout()


# Run the program
if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()

当我单击PanelOne类中的按钮时，我想调用函数onSwitchPanels。这个应用程序我希望像this code in Tkinter一样工作。

我有堆叠的人，帮帮我，非常感谢。

Answer 1

我在一年多前写了一个关于这个主题的教程，虽然我使用菜单进行切换。您可以调整代码以使按钮执行此操作。这是教程：http://www.blog.pythonlibrary.org/2010/06/16/wxpython-how-to-switch-between-panels/

编辑：上面代码的问题是三重的。首先在onSwitchPanels方法中，你需要有“self.panel_one.Hide（）”。请注意代码中缺少的括号。其次，你真的需要让“self.Layout（）”取消缩进，因此它与if语句处于同一级别，而不是“else”部分。最后，你不能从PanelOne调用“onSwitchPanels”，因为它没有在那里定义。你可以改变它，所以就像这样：

button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels)

丑陋而不是真的推荐，但它确实有效。不过你应该使用PubSub。

编辑＃2：猜猜我应该刚刚发布了代码，因为OP甚至都不会尝试我的建议。

import wx
import wx.grid as gridlib

########################################################################
class PanelOne(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent=parent)
        txt = wx.TextCtrl(self)
        button =wx.Button(self, label="Save", pos=(200, 325))
        button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels)

########################################################################
class PanelTwo(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent=parent)

        grid = gridlib.Grid(self)
        grid.CreateGrid(25,12)

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(grid, 0, wx.EXPAND)
        self.SetSizer(sizer)

########################################################################
class MyForm(wx.Frame):

    #----------------------------------------------------------------------
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY,
                          "Panel Switcher Tutorial",
                          size=(800,600))

        self.panel_one = PanelOne(self)
        self.panel_two = PanelTwo(self)
        self.panel_two.Hide()

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.panel_one, 1, wx.EXPAND)
        self.sizer.Add(self.panel_two, 1, wx.EXPAND)
        self.SetSizer(self.sizer)

        menubar = wx.MenuBar()
        fileMenu = wx.Menu()
        switch_panels_menu_item = fileMenu.Append(wx.ID_ANY,
                                                  "Switch Panels",
                                                  "Some text")
        self.Bind(wx.EVT_MENU, self.onSwitchPanels,
                  switch_panels_menu_item)
        menubar.Append(fileMenu, '&File')
        self.SetMenuBar(menubar)

    #----------------------------------------------------------------------
    def onSwitchPanels(self, event):

        if self.panel_one.IsShown():
           self.SetTitle("Panel Two Showing")
           self.panel_one.Hide()
           self.panel_two.Show()
        else:
           self.SetTitle("Panel One Showing")
           self.panel_one.Show()
           self.panel_two.Hide()
        self.Layout()

# Run the program
if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()