wxpython：如何使用按钮显示和隐藏一个形状

您好，我正在尝试创建一个开-关按钮和两个圆圈，一个圆圈是白色的，另一个是红色的，圆圈代表一个LED，当我按下on时，我想看到红色圆圈，再次按下wenn，我想看到白色。我已经写了这段代码，但我不习惯使用两个面板并调用打开开关面板功能。还有其他方法吗？我的意思是，如果我可以将打开按钮与红色圆圈绑定并隐藏白色，当我再次按下同一个按钮或另一个带有标签的按钮时，隐藏红色并显示白色

代码如下：

`import wx

class PanelOne(wx.Panel):

    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent)
        button =wx.Button(self, label="Turn ON", pos=(160, 130))
        button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels)
        self.Bind(wx.EVT_PAINT, self.OnPaint)

    def OnPaint(self, evt):
        dc = wx.PaintDC(self)
        dc.Clear() 
        dc.SetBrush(wx.Brush('White'))
        dc.DrawCircle(200, 230, 35)


class PanelTwo(wx.Panel):

    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent)
        button =wx.Button(self, label="Turn OFF", pos=(160, 130))
        button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels)
        self.Bind(wx.EVT_PAINT, self.OnPaint)

    def OnPaint(self, evt):
        dc = wx.PaintDC(self)
        dc.Clear() 
        dc.SetBrush(wx.Brush('Red'))
        dc.DrawCircle(200, 230, 35)


class MainForm(wx.Frame):

    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY,"LED" )

        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)


    def onSwitchPanels(self, event):
        if self.panel_one.IsShown():
            self.SetTitle("LED")
            self.panel_one.Hide()
            self.panel_two.Show()
        else:
            self.SetTitle("LED")
            self.panel_one.Show()
            self.panel_two.Hide()
        self.Layout()

if __name__ == "__main__":
    app = wx.App(False)
    frame = MainForm()
    frame.Show()
    app.MainLoop()`

---

这里有一种方法，使用一个面板改变相同的按钮和相同的圆圈

import wx


class PanelOne(wx.Panel):

    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent)
        self.state = [('White', 'Turn ON'), ('Red', 'Turn OFF')]
        self.button = wx.Button(self, label=self.state[0][1], pos=(160, 130))
        self.button.Bind(wx.EVT_BUTTON, self.switch_state)
        self.Bind(wx.EVT_PAINT, self.OnPaint)

    def OnPaint(self, evt):
        dc = wx.PaintDC(self)
        dc.Clear()
        dc.SetBrush(wx.Brush(self.state[0][0]))
        dc.DrawCircle(200, 230, 35)

    def switch_state(self, event):
        self.state.append(self.state.pop(0))
        self.button.SetLabel(label=self.state[0][1])
        self.Refresh()


class MainForm(wx.Frame):

    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "LED")
        self.panel_one = PanelOne(self)
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.panel_one, 1, wx.EXPAND)
        self.SetSizer(self.sizer)


if __name__ == "__main__":
    app = wx.App(False)
    frame = MainForm()
    frame.Show()
    app.MainLoop()