olemis

import wx, wx.grid

UI_MENU = [
                    ('Load from &file ...', True, None),
                    ('&Save to file ...', True, None)
                   ]

def populate_menus(par, skel, evsrc):
  if isinstance(par, wx.MenuBar) :
    for md in skel :
        menu = wx.Menu()
        populate_menus(menu, md[-1], evsrc)
        par.Append(menu, md[0])
  else :
    for md in skel :
        args = md[:-2]
        submd = md[-1]
        if submd :
          subm = wx.Menu()
          populate_menus(subm, submd, evsrc)
          par.AppendMenu(-1, md[0], subm)
        else :
          menu = par.Append(-1, *args)

class MainForm(wx.Frame):
  def __init__(self, parent, id):
    pnlMain = wx.Panel(self, -1)
    szrMain = wx.GridBagSizer(hgap=5, vgap=5)

    self.domlist = lc = wx.grid.Grid(pnlMain, -1, style=wx.WANTS_CHARS)
    mdl = wx.grid.PyGridTableBase(self)
    lc.SetTable(mdl, True, wx.grid.Grid.SelectRows)
    lc.SetRowLabelSize(0);
    lc.AutoSizeColumns();
    szrMain.Add(lc, pos=(1, 0), span=(1,4), flag=wx.EXPAND | wx.FIXED_MINSIZE)
    szrMain.AddGrowableCol(2)
    szrMain.AddGrowableRow(1)
    pnlMain.SetSizer(szrMain)
    pnlMain.Layout()
    self.Fit()
    lc.Bind(wx.EVT_CONTEXT_MENU, self.OnGridPopup)

  def OnGridPopup(self, event):
    menu = wx.Menu()
    populate_menus(menu, UI_MENU, self)
    self.domlist.PopupMenu(menu)