.. _user_interfaces-rec_edit_gtk_custom:

user_interfaces example code: rec_edit_gtk_custom.py
====================================================

[`source code <rec_edit_gtk_custom.py>`_]

::

    """
    generate an editable gtk treeview widget for record arrays with custom
    formatting of the cells and show how to limit string entries to a list
    of strings
    """
    from __future__ import print_function
    import gtk
    import numpy as np
    import matplotlib.mlab as mlab
    import matplotlib.cbook as cbook
    import mpl_toolkits.gtktools as gtktools
    
    
    datafile = cbook.get_sample_data('demodata.csv', asfileobj=False)
    r = mlab.csv2rec(datafile, converterd={'weekdays':str})
    
    
    formatd = mlab.get_formatd(r)
    formatd['date'] = mlab.FormatDate('%Y-%m-%d')
    formatd['prices'] = mlab.FormatMillions(precision=1)
    formatd['gain'] = mlab.FormatPercent(precision=2)
    
    # use a drop down combo for weekdays
    stringd = dict(weekdays=['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'])
    constant = ['clientid']   # block editing of this field
    
    
    liststore = gtktools.RecListStore(r, formatd=formatd, stringd=stringd)
    treeview = gtktools.RecTreeView(liststore, constant=constant)
    
    def mycallback(liststore, rownum, colname, oldval, newval):
        print('verify: old=%s, new=%s, rec=%s'%(oldval, newval, liststore.r[rownum][colname]))
    
    liststore.callbacks.connect('cell_changed', mycallback)
    
    win = gtk.Window()
    win.set_title('click to edit')
    win.add(treeview)
    win.show_all()
    win.connect('delete-event', lambda *args: gtk.main_quit())
    gtk.main()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)