from datetime import date

from traits.etsconfig.api import ETSConfig
ETSConfig.toolkit = 'qt4'

from traits.api import Date, Dict, HasTraits, List, on_trait_change
from traitsui.api import View, Item, StyledDateEditor
from traitsui.editors.styled_date_editor import CellFormat

class Foo(HasTraits):
    dates = Dict()
    styles = Dict()

    fast_dates = List
    slow_dates = List

    current_date = Date()

    traits_view = View(Item("current_date", style="custom", show_label=False,
                        editor=StyledDateEditor(dates_trait="dates", styles_trait="styles")))

    def __init__(self, *args, **kw):
        HasTraits.__init__(self, *args, **kw)
        self.styles = {
                "fast" : CellFormat(bold=True, fgcolor="darkGreen"),
                "slow" : CellFormat(italics=True, fgcolor="lightGray"),
                }

        self.fast_dates = [date(2010,7,4), date(2010,7,3), date(2010,7,2)]
        self.slow_dates = [date(2010,6,28), date(2010,6,27), date(2010,6,24)]

    @on_trait_change("fast_dates,slow_dates")
    def _update_dates_dict(self):
        self.dates["fast"] = self.fast_dates
        self.dates["slow"] = self.slow_dates

    def _current_date_changed(self, old, new):
        print "Old:", old, "New:", new


def main():
    foo = Foo()
    foo.configure_traits()


if __name__ == "__main__":
    main()