Minimum size for wx.ListCtrl?

wxPython Users
1

Taking out the sizer.Fit(self) line changes the size, but
unfortunately doesn't fix the problem. When I comment out that line,
the control is a different size but it appears to be some kind of
default size and much bigger than necessary. I tried wx.CallAfter but
that didn't work either.

This is my rather ugly solution to the problem:
    w = self.ballotC.GetColumnWidth(0) + self.ballotC.GetColumnWidth(1) + 20
    sizer.SetItemMinSize(self.ballotC, (w, -1))
This tells the sizer to give a specified minimum width for the
wx.ListCtrl. The column widths get me close to the right size, but I
need a little padding and throw in 20 pixels.

I've been using wxPython for a few years and can generally figure
things out, but I'm really stumped by this one. I'm trying to use a
wx.ListCtrl for this first time, but the default sizing isn't what I
would like.

It appears that for a wxListCtrl the following
  GetSize()
  GetBestSize()
  GetEffectiveMinSize()
always return (100, 80) regardless of the contents of the wxListCtrl.

I would like to set the size of the wxListCtrl so that it is big
enough to not need scroll bars. Is there an easy way to do this?

If it helps, I have an example below.

Jeff

It looks like the "sizer.Fit(self)" line in your MyFrame class is the
issue. I commented that line out on my machine and it worked fine then.
I'm using Windows XP, wxPython 2.8.9.1., Python 2.5.2. I can't tell you
exactly why this is happening though. I'm guessing that when the Fit is
called in the Frame, it's doing it before the ListCtrl is fully
initialized so that the panel is not expanded yet. You could try
sticking the Fit() call in MyFrame in a wx.CallAfter() to see if that
works...

Or maybe someone else will have a clue.

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2

Jeffrey O'Neill wrote:

Taking out the sizer.Fit(self) line changes the size, but
unfortunately doesn't fix the problem. When I comment out that line,
the control is a different size but it appears to be some kind of
default size and much bigger than necessary. I tried wx.CallAfter but
that didn't work either.
  
Well, you did tell it to use the default size after all in your init: "size=wx.DefaultSize". When I looked at some of my old code it looks like I always set the size explicitly. You might find the ObjectListView widget to be more to your liking. It is supposed to make using the ListCtrl much easier. I've used it a little, but not enough to really comment on whether or not it is truly better. Here's the home page: ObjectListView — ObjectListView v1.2 documentation

This is my rather ugly solution to the problem:
    w = self.ballotC.GetColumnWidth(0) + self.ballotC.GetColumnWidth(1) + 20
    sizer.SetItemMinSize(self.ballotC, (w, -1))
This tells the sizer to give a specified minimum width for the
wx.ListCtrl. The column widths get me close to the right size, but I
need a little padding and throw in 20 pixels.
  
Hopefully one of the other guys will have some advice otherwise.

···

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Mike Driscoll

Blog: http://blog.pythonlibrary.org
Python Extension Building Network: http://www.pythonlibrary.org