How to Switch Between Panels whitch Buttons - python-3.x

Question

I can not navigate between the panels of my App through the buttons. I followed a lot of tutorials like this one but none solve my problem.
Thank for Help.
####################-----Principal Panel (first Panel)
import wx
from OtherPanel import OtherPanel
class MyPanel(wx.Panel):
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent = parent, size=(600, 500))
self.SetBackgroundColour(wx.Colour(250, 250, 250))
parent.Center()
self.histoPanel = OtherPanel(self)
self.home()
self.panel = wx.Panel(self)
def home(self):
self.panel = wx.Panel(self)
self.panel.SetBackgroundColour(wx.Colour(250, 250, 250))
bS =wx.Button(self, -1,"Go some where ",(200,30), size=(150,150))
self.Bind(wx.EVT_BUTTON, self.Sy, bS)
bOthe = wx.Button(self, -1,"Go to OtherPanel",(400,30),(150,150))
self.Bind(wx.EVT_BUTTON, self.onOpenFrame,bOthe)
def onOpenFrame(self, event):
"""
Opens secondary frame
"""
self.Hide()
self.histoPanel.Show()
def Sy(self, event):
"""
I have another panel (panel 3)
"""
self.Hide()
#self.panel3.Show()
--Second Panel (another Panel)
this panel is displayed when you click on the button of the first panel
import wx
class OtherPanel(wx.Panel):
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent = parent)
self.panel = wx.Panel(self)
self.SetBackgroundColour(wx.Colour(250, 250, 250))
self.Center()
self.homeHist()
self.Show()
def homeHist(self):
bBack = wx.Button(self, -1, "", pos=(20,30), size=(50,50))
self.Bind(wx.EVT_BUTTON, self.onClose, bBack)
def onClose(self, event):
self.Close()
------My Frame---.
here is my Frame/Windows. he must wear all the panels in turn
import wx
from MyPanel import MyPanel
from OtherPanel import OtherPanel
class MyFrame(wx.Frame):
""""""
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, size = (600,500))
self.myPanel = MyPanel(self)
self.otherpanel = OtherPanel(self)
self.otherpanel.Hide()
self.menu()
self.CreateStatusBar(style= wx.BORDER_NONE)
self.SetBackgroundColour("gray")
self.SetStatusText("\tthank")
def menu(self):
menubar = wx.MenuBar()
fileMenu = wx.Menu()
menubar.SetBackgroundColour(wx.Colour(1, 1, 6))
fileMenu.AppendSeparator()
live = wx.MenuItem(fileMenu, wx.ID_EXIT, '&Quit\tCtrl+Q', '\tlive my app')
fileMenu.Append(live)
self.Bind(wx.EVT_MENU, self.Onexit, live)
menubar.Append(fileMenu, '\t&Menu')
self.SetMenuBar(menubar)
def Onexit(self, event):
self.Close(True)
def Bouton(self, event):
if self.myPanel.IsShown():
self.SetTitle("Panel Two Showing")
self.myPanel.Hide()
self.otherpanel.Show()
else:
self.SetTitle("Panel One Showing")
self.myPanel.Show()
self.otherpanel.Hide()
self.Layout()
if __name__ == "__main__":
app = wx.App(False)
frame = MyFrame()
frame.Show()
app.MainLoop()

Answer 1

In your MyPanel.__init__ you are creating an instance of OtherPanel assigned to self.histoPanel as a child of the MyPanel, and then MyPanel's event handlers are hiding itself, which in turn hides its children including the self.histoPanel. You're also creating some panels assigned to self.panel which don't seem to be used for anything.
The way you are doing it in the MyFrame class is much better. It creates both panels and hides one. Then in MyFrame.Bouton it hides one and shows the other, depending on the current state. So what you need to do is get rid of all the extra panels in MyPanel (self.histoPanel and also the various self.panels that are never used for anything) and then you just need to have the button event ask the parent frame to swap the panels instead of trying to do it itself.

Answer 2

Here is an example of what Robin is suggesting in his answer:
import wx
class MyPanel(wx.Panel):
def __init__(self, parent):
super().__init__(parent)
self.parent = parent
self.panel = wx.Panel(self)
self.btn = wx.Button(self.panel, label="Panel 1", size=(250,75))
self.btn.Bind(wx.EVT_BUTTON, self.switch)
vbox1 = wx.BoxSizer(wx.VERTICAL)
vbox1.Add(self.btn)
self.panel.SetSizer(vbox1)
vbox = wx.BoxSizer(wx.VERTICAL)
vbox.Add(self.panel)
self.SetSizer(vbox)
self.Show()
def switch(self, event):
self.parent.Swap()
class MyOtherPanel(wx.Panel):
def __init__(self, parent):
super().__init__(parent)
self.parent = parent
self.panel = wx.Panel(self)
self.btn = wx.Button(self.panel, label="Panel 2", size=(175,250))
self.btn.Bind(wx.EVT_BUTTON, self.switch)
vbox1 = wx.BoxSizer(wx.VERTICAL)
vbox1.Add(self.btn)
self.panel.SetSizer(vbox1)
vbox = wx.BoxSizer(wx.VERTICAL)
vbox.Add(self.panel)
self.SetSizer(vbox)
self.Show()
self.panel.Hide()
def switch(self, event):
self.parent.Swap()
class PanelSwitcher(wx.Frame):
def __init__(self):
super().__init__(None)
vbox = wx.BoxSizer(wx.VERTICAL)
self.panel1 = MyPanel(self)
self.panel2 = MyOtherPanel(self)
vbox.Add(self.panel1)
vbox.Add(self.panel2)
self.SetSizer(vbox)
self.Show()
def Swap(self):
if self.panel1.panel.IsShown():
self.panel1.panel.Hide()
self.panel2.panel.Show()
else:
self.panel2.panel.Hide()
self.panel1.panel.Show()
self.Layout()
if __name__ == "__main__":
app = wx.App()
PanelSwitcher()
app.MainLoop()