[wxPython-users] Help needed to get ScrolledPanel scrolling!

[Doran_Dermot at emc.com]

Hi Dave,

Good point!  I just felt a bit silly sending out the email without
having researched it enough!  Still it has led to Robin Dunn supplying
me with a very good explanation of why the exception is raised.

Winners all round then!

Cheers!!

Dermot.

Dermot Doran Sr Technical Support Engineer 
EMC GTS Solutions Level 2 Infrastructure Services
Office: +353-21-4281500 (x5474)
Mobile: +31-6-55815258
Worldwide Customer Support Number: + 800 782 43622


-----Original Message-----
From: Dave Coventry [mailto:dc at docndraft.com] 
Sent: 29 June 2006 17:07
To: wxPython-users at lists.wxwidgets.org
Subject: Re: [wxPython-users] Help needed to get ScrolledPanel
scrolling!

 >It may seem to be a bit odd to reply to oneself,
No. The point about this type of list is that, if you solve a particular

problem, you share the solution with the community:
1. This means that others who might have a similar problem can search 
archives for your solution, and
2. It means that those on the list who were trying to reproduce your 
problem in an effort to assist you (and perhaps investigate a possible 
bug) know that this is no longer necessary.
:)

Doran_Dermot at emc.com wrote:
>
> Hello All,
>
> It may seem to be a bit odd to reply to oneself, but I've discovered 
> that the IDE I'm using was trapping the exception! I'm using Wing IDE 
> and it traps this IndexError exception!
>
> The question I have now is, should this exception be generated? I've 
> adapted the program from the Demo and it generates the same exception.
>
> Interested to know!
>
> Cheers!!
>
> Dermot.
>
> Dermot Doran Sr Technical Support Engineer
> */EMC/* GTS Solutions Level 2 Infrastructure Services
> Office: +353-21-4281500 (x5474)
> Mobile: +31-6-55815258
> Worldwide Customer Support Number: + 800 782 43622
>
>
------------------------------------------------------------------------
>
> *From:* Doran_Dermot at emc.com [mailto:Doran_Dermot at emc.com]
> *Sent:* 29 June 2006 16:38
> *To:* wxPython-users at lists.wxwidgets.org
> *Subject:* [wxPython-users] Help needed to get ScrolledPanel
scrolling!
>
> Hello All,
>
> I'm probably making a really stupid mistake here! I've tried playing 
> around with ScrolledPanel and can't get the scrolling to work (which 
> is a bit of a disadvantage with such a control).
>
> The following program always blows up at the statement 
> "self.panel.SetupScrolling()". The error I receive is:
>
> IndexError: tuple index out of range
>
> Traceback (innermost last):
>
> File "d:\MyProjects\multi_frames\test_app.py", line 1, in ?
>
> import wx
>
> File "d:\MyProjects\multi_frames\test_app.py", line 46, in ?
>
> app = TestApp()
>
> File "C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\_core.py", 
> line 7668, in __init__
>
> self._BootstrapApp()
>
> File "C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\_core.py", 
> line 7320, in _BootstrapApp
>
> return _core_.PyApp__BootstrapApp(*args, **kwargs)
>
> File "d:\MyProjects\multi_frames\test_app.py", line 33, in OnInit
>
> self.gui = MainFrame(None)
>
> File "d:\MyProjects\multi_frames\test_app.py", line 27, in __init__
>
> self.panel.SetupScrolling()
>
> File 
>
"C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\lib\scrolledpanel.p
y", 
> line 62, in SetupScrolling
>
> w, h = sizer.GetMinSize()
>
> File "C:\Python24\Lib\site-packages\wx-2.6-msw-unicode\wx\_core.py", 
> line 909, in __getitem__
>
> def __getitem__(self, index): return self.Get()[index]
>
> If I remove the statement the window displays without scroll-bars. Any

> help would be gratefully appreciated (including admonishments for 
> making dumb mistakes).
>
> For the record I'm running this using Python 2.4.2 and wxPython 
> 2.6.2.1 (Unicode).
>
> Cheers!!
>
> Here is the sample code:
>
> import wx
>
> import wx.lib.scrolledpanel as scrolled
>
> class MainFrame(wx.Frame):
>
> def __init__(self, parent):
>
> wx.Frame.__init__(self, parent,-1, "Test Scrolled Panel")
>
> self.panel = scrolled.ScrolledPanel(self, -1)
>
> self.panel.SetBackgroundColour(wx.WHITE)
>
> self.item_boxes = []
>
> self.items = []
>
> self.main_box = wx.BoxSizer(wx.VERTICAL)
>
> for i in range(0, 33):
>
> lbl = wx.StaticText(self.panel, -1, "Field:", style=wx.ALIGN_RIGHT)
>
> txt = wx.TextCtrl(self.panel, -1, "", style=wx.TE_MULTILINE)
>
> item_box = wx.FlexGridSizer(cols=2, hgap=5, vgap=5)
>
> item_box.AddGrowableCol(1)
>
> item_box.Add(lbl, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_RIGHT)
>
> item_box.SetItemMinSize(0, 50, -1)
>
> item_box.Add(txt, 0, wx.EXPAND)
>
> self.main_box.Add(item_box, 0, border=2, flag=wx.EXPAND|wx.BOTTOM)
>
> self.panel.SetSizer(self.main_box)
>
> self.panel.SetAutoLayout(1)
>
> self.panel.SetupScrolling()
>
> class TestApp(wx.App):
>
> def OnInit(self):
>
> self.gui = MainFrame(None)
>
> self.SetTopWindow(self.gui)
>
> self.gui.Show()
>
> return True
>
> if __name__ == '__main__':
>
> app = TestApp()
>
> app.MainLoop()
>
> Dermot Doran Sr Technical Support Engineer
> */EMC/* GTS Solutions Level 2 Infrastructure Services
> Office: +353-21-4281500 (x5474)
> Mobile: +31-6-55815258
> Worldwide Customer Support Number: + 800 782 43622
>


-- 
Dave Coventry
Tel:  +27(0)31 7644107
Fax:  +27(0)31 7644107
Cell: +27(0)82 3685983


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