# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-

#

# $Id: ComboBox.py 36560 2004-07-18 06:16:08Z tim_one $

#

# Tix Demostration Program

#

# This sample program is structured in such a way so that it can be

# executed from the Tix demo program "tixwidgets.py": it must have a

# procedure called "RunSample". It should also have the "if" statment

# at the end of this file so that it can be run as a standalone

# program.

# This file demonstrates the use of the tixComboBox widget, which is close

# to the MS Window Combo Box control.

#

import Tix

def RunSample(w):

    global demo_month, demo_year

    top = Tix.Frame(w, bd=1, relief=Tix.RAISED)

    demo_month = Tix.StringVar()

    demo_year = Tix.StringVar()

    # $w.top.a is a drop-down combo box. It is not editable -- who wants

    # to invent new months?

    #

    # [Hint] The -options switch sets the options of the subwidgets.

    # [Hint] We set the label.width subwidget option of both comboboxes to

    #        be 10 so that their labels appear to be aligned.

    #

    a = Tix.ComboBox(top, label="Month: ", dropdown=1,

        command=select_month, editable=0, variable=demo_month,

        options='listbox.height 6 label.width 10 label.anchor e')

    # $w.top.b is a non-drop-down combo box. It is not editable: we provide

    # four choices for the user, but he can enter an alternative year if he

    # wants to.

    #

    # [Hint] Use the padY and anchor options of the label subwidget to

    #        align the label with the entry subwidget.

    # [Hint] Notice that you should use padY (the NAME of the option) and not

    #        pady (the SWITCH of the option).

    #

    b = Tix.ComboBox(top, label="Year: ", dropdown=0,

        command=select_year, editable=1, variable=demo_year,

        options='listbox.height 4 label.padY 5 label.width 10 label.anchor ne')

    a.pack(side=Tix.TOP, anchor=Tix.W)

    b.pack(side=Tix.TOP, anchor=Tix.W)

    a.insert(Tix.END, 'January')

    a.insert(Tix.END, 'February')

    a.insert(Tix.END, 'March')

    a.insert(Tix.END, 'April')

    a.insert(Tix.END, 'May')

    a.insert(Tix.END, 'June')

    a.insert(Tix.END, 'July')

    a.insert(Tix.END, 'August')

    a.insert(Tix.END, 'September')

    a.insert(Tix.END, 'October')

    a.insert(Tix.END, 'November')

    a.insert(Tix.END, 'December')

    b.insert(Tix.END, '1992')

    b.insert(Tix.END, '1993')

    b.insert(Tix.END, '1994')

    b.insert(Tix.END, '1995')

    b.insert(Tix.END, '1996')

    # Use "tixSetSilent" to set the values of the combo box if you

    # don't want your -command procedures (cbx:select_month and

    # cbx:select_year) to be called.

    #

    a.set_silent('January')

    b.set_silent('1995')

    box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)

    box.add('ok', text='Ok', underline=0, width=6,

            command=lambda w=w: ok_command(w))

    box.add('cancel', text='Cancel', underline=0, width=6,

            command=lambda w=w: w.destroy())

    box.pack(side=Tix.BOTTOM, fill=Tix.X)

    top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)

def select_month(event=None):

    # tixDemo:Status "Month = %s" % demo_month.get()

    pass

def select_year(event=None):

    # tixDemo:Status "Year = %s" % demo_year.get()

    pass

def ok_command(w):

    # tixDemo:Status "Month = %s, Year= %s" % (demo_month.get(), demo_year.get())

    w.destroy()

if __name__ == '__main__':

    root = Tix.Tk()

    RunSample(root)

    root.mainloop()