wxpython - 从另一个框架返回输入变量

Question

如何在一帧中的一个面板中引用另一帧中另一个面板中的输入变量？

我基本上想在 wxpython gui 的菜单栏中创建一个“选项”选项卡，单击该选项卡时，会打开一个新框架，允许用户更改一些变量。但是，当我稍后尝试引用这些变量时，我得到 AttributeError：类型对象“OptionsPanel”没有属性“Input1”

我将两个面板和两个框架都定义为类。 这是我的完整代码：

import wx
class MainFrame(wx.Frame):
    def __init__(self,title):
        wx.Frame.__init__(self, None, title=title, pos=(150,150), size=(200,300))
        menuBar = wx.MenuBar()
        menu = wx.Menu()
        m_options = menu.Append(wx.ID_EDIT, "&Options", "Options")
        self.Bind(wx.EVT_MENU, self.OnOptions, m_options)
        menuBar.Append(menu, "&Options")
        self.SetMenuBar(menuBar)
        panel=MainPanel(self)
    def OnOptions(self, event):
        frame = OptionsFrame("Options Frame")
        frame.Show()
class OptionsFrame(wx.Frame):
    def __init__(self,title):
        wx.Frame.__init__(self, None, title=title, pos=(150,150), size=(200,200))    
        panel=OptionsPanel(self)
class OptionsPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.label = wx.StaticText(self, label="Input Value", pos=(40,60))
        self.Input1 = wx.TextCtrl(self, value="1.0", pos=(80,80), size=(60,-1))
class MainPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.button =wx.Button(self, label="GO", pos=(60,100))
        self.Bind(wx.EVT_BUTTON, self.OnClick,self.button)
    def OnClick(self,event):
        MyVariable= OptionsPanel.Input1.GetValue() #This won't work!
        print dt0
if __name__=="__main__":
    app = wx.App(redirect=False)
    frame = MainFrame("Multiple Frames Attempt")
    frame.Show()
    app.MainLoop()

提前致谢！

Answer 1

一个问题是类 MainPanel 中的 OnClick 方法引用了类 OptionsPanel，而不是引用类 OptionsFrame 中的类 OptionsPanel（“panel”）的实例化。

import wx
class MainFrame(wx.Frame):
    def __init__(self,title):
        wx.Frame.__init__(self, None, title=title, pos=(150,150), size=(200,300))
        menuBar = wx.MenuBar()
        menu = wx.Menu()
        m_options = menu.Append(wx.ID_EDIT, "&Options", "Options")
        self.Bind(wx.EVT_MENU, self.OnOptions, m_options)
        menuBar.Append(menu, "&Options")
        self.SetMenuBar(menuBar)
        panel=MainPanel(self)
        self.options_frame = None
    def OnOptions(self, event):
        self.options_frame = OptionsFrame("Options Frame")
        self.options_frame.Show()
    def GetInput1Value(self):
        if self.options_frame is not None:
            return(self.options_frame.options_panel.Input1.GetValue())
        else:
            return('None')
class OptionsFrame(wx.Frame):
    def __init__(self,title):
        wx.Frame.__init__(self, None, title=title, pos=(150,150), size=(200,200))    
        self.options_panel=OptionsPanel(self)
class OptionsPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.label = wx.StaticText(self, label="Input Value", pos=(40,60))
        self.Input1 = wx.TextCtrl(self, value="1.0", pos=(80,80), size=(60,-1))
class MainPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        self.parent_frame = parent
        self.button =wx.Button(self, label="GO", pos=(60,100))
        self.Bind(wx.EVT_BUTTON, self.OnClick,self.button)
    def OnClick(self,event):
        MyVariable= self.parent_frame.GetInput1Value()
        print MyVariable
if __name__=="__main__":
    app = wx.App(redirect=False)
    frame = MainFrame("Multiple Frames Attempt")
    frame.Show()
    app.MainLoop()