How can I get the width of a wx.ListCtrl and its column name?

Question

I'm working in wx.Python and I want to get the columns of my wx.ListCtrl to auto-resize i.e. to be at minimum the width of the column name and otherwise as wide as the widest element or its column name. At first I thought the ListCtrlAutoWidthMixin might do this but it doesn't so it looks like I might have to do it myself (Please correct me if there's a built in way of doing this!!!)

How can I find out how wide the titles and elements of my list will be rendered?

Answer 1

Yes, you would have to make this yourself for wx.ListCtrl and I'm not sure it would be easy (or elegant) to do right.

Consider using a wx.Grid, here is a small example to get you going:

import wx, wx.grid

class GridData(wx.grid.PyGridTableBase):
    _cols = "This is a long column name,b,c".split(",")
    _data = [
        "1 2 3".split(),
        "4,5,And here is a long cell value".split(","),
        "7 8 9".split()
    ]

    def GetColLabelValue(self, col):
        return self._cols[col]

    def GetNumberRows(self):
        return len(self._data)

    def GetNumberCols(self):
        return len(self._cols)

    def GetValue(self, row, col):
        return self._data[row][col]


class Test(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None)
        grid = wx.grid.Grid(self)
        grid.SetTable(GridData())
        grid.EnableEditing(False)
        grid.SetSelectionMode(wx.grid.Grid.SelectRows)
        grid.SetRowLabelSize(0)
        grid.AutoSizeColumns()


app = wx.PySimpleApp()
app.TopWindow = Test()
app.TopWindow.Show()
app.MainLoop()

Answer 2

If you'd like to save yourself a lot of headache related to wx.ListCtrl you should switch over to using ObjectListView (has a nice cookbook and forum for code examples). It's very nice and I tend to use it for anything more than a very basic ListCtrl, because it is extremely powerful and flexible and easy to code up. Here's the wxPyWiki page related to it (including example code). The developer is also on the wxPython mailing list so you can email with questions.