On Sep 9, 3:05 pm, [EMAIL PROTECTED] wrote:
> Hi,
>
> I have just started writing a GUI using wxpython after finding a
> limitation using Tkinter. I have read most tutorials on wxpython and
> slowly becoming accustomed considering I started with the latter GUI
> tool first!
> I must quote first that I am a novice user of python so the issue(s) I
> have may seem very obvious but please be patient with me!
>
> I have noticed that all the wxpython references I used for creating my
> application(s) "cram" all the code in the frame subclass. This is
> fine when you consider small applications but what about when they
> grow into very complex applications? This creates my first question :
> Where is it possible to find information on wxpython code practise/
> structure when considering complex larger Gui's?
>
> Without any reference I decided to attempt my owm method by breaking
> up the top level panels in my frame as individiual class objects. and
> then construct the widgets for the panels within the respective
> classes. This led to my second problem, how do I use and event in one
> Panel to cause an effect in the other Panel ? For example, if I have
> button in one Panel and wish to change the text of a label in the
> other Panel, what is the best way to do this? Should I break the code
> into modules instead?
>
> Of course, you may explain that the way I have approached this is
> completely wrong, if so please tell me, I really want to get the basic
> structure right before I start making the code more complex.
>
> I look forward to your help
>
> -------------------------------------------------------------------------------------------------------------------------------------
>
> I have listed some code below to help explain what concept I wish to
> achieve,
>
> import wx
>
> class Frame(wx.Frame):
> def __init__(self):
> wx.Frame.__init__(self, None,
> title="Application",size=(400,400))
> Panel1 = wx.Panel(self, -1,size=(200,200))
> Panel2 = wx.Panel(self, -1,size=(200,200))
> Sizer = wx.FlexGridSizer(2,2,5,5)
> Sizer.Add(Panel1)
> Sizer.Add(Panel2)
> self.SetSizerAndFit(Sizer)
> Util1 = Utils1(Panel1)
> Util2 = Utils2(Panel2)
>
> class Utils1():
> def __init__(self, Panel):
> button = wx.Button(Panel,-1, "Button 1")
> Panel.Bind(wx.EVT_BUTTON, self.OnClick, button)
> self.Label = wx.StaticText(Panel,-1, "Handler to me",
> name="Lab1")
> Sizer = wx.BoxSizer(wx.VERTICAL)
> Sizer.Add(button)
> Sizer.Add(self.Label)
> Panel.SetSizerAndFit(Sizer)
>
> def OnClick(self, Evt):
> self.Label.SetLabel("you changed me")
>
> class Utils2():
> def __init__(self, Panel):
> self.button = wx.Button(Panel,-1, "Button 2")
> Panel.Bind(wx.EVT_BUTTON, self.OnClick, self.button)
>
> def OnClick(self, Evt):
> """ what is the easiest & accepted Method of changing the text
> in
> a different class instance?"""
> pass
> #???.SetLabel("you changed me")
>
> app = wx.PySimpleApp()
> frame = Frame()
> frame.Show()
> app.MainLoop()
These are good questions for the wxPython list. You'll learn a lot
there: http://wxpython.org/maillist.php
You'll also find the Style Guide helpful:
http://wiki.wxpython.org/wxPython%20Style%20Guide
In my more complex applications, I'll do the widgets in their own
function, or for a wx.Notebook, I'll do each "book" in their own
module by subclassing a wx.Panel object or some such. If you do that
sort of thing in their own module subclasses, then the event handlers
can go there too.
Mike
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