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1# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
2#
3# $Id$
4#
5# Tix Demonstration Program
6#
7# This sample program is structured in such a way so that it can be
8# executed from the Tix demo program "tixwidgets.py": it must have a
9# procedure called "RunSample". It should also have the "if" statment
10# at the end of this file so that it can be run as a standalone
11# program.
12
13# This file demonstrates the use of the tixComboBox widget, which is close
14# to the MS Window Combo Box control.
15#
16import Tix
17
18def RunSample(w):
19    global demo_month, demo_year
20
21    top = Tix.Frame(w, bd=1, relief=Tix.RAISED)
22
23    demo_month = Tix.StringVar()
24    demo_year = Tix.StringVar()
25
26    # $w.top.a is a drop-down combo box. It is not editable -- who wants
27    # to invent new months?
28    #
29    # [Hint] The -options switch sets the options of the subwidgets.
30    # [Hint] We set the label.width subwidget option of both comboboxes to
31    #        be 10 so that their labels appear to be aligned.
32    #
33    a = Tix.ComboBox(top, label="Month: ", dropdown=1,
34        command=select_month, editable=0, variable=demo_month,
35        options='listbox.height 6 label.width 10 label.anchor e')
36
37    # $w.top.b is a non-drop-down combo box. It is not editable: we provide
38    # four choices for the user, but he can enter an alternative year if he
39    # wants to.
40    #
41    # [Hint] Use the padY and anchor options of the label subwidget to
42    #        align the label with the entry subwidget.
43    # [Hint] Notice that you should use padY (the NAME of the option) and not
44    #        pady (the SWITCH of the option).
45    #
46    b = Tix.ComboBox(top, label="Year: ", dropdown=0,
47        command=select_year, editable=1, variable=demo_year,
48        options='listbox.height 4 label.padY 5 label.width 10 label.anchor ne')
49
50    a.pack(side=Tix.TOP, anchor=Tix.W)
51    b.pack(side=Tix.TOP, anchor=Tix.W)
52
53    a.insert(Tix.END, 'January')
54    a.insert(Tix.END, 'February')
55    a.insert(Tix.END, 'March')
56    a.insert(Tix.END, 'April')
57    a.insert(Tix.END, 'May')
58    a.insert(Tix.END, 'June')
59    a.insert(Tix.END, 'July')
60    a.insert(Tix.END, 'August')
61    a.insert(Tix.END, 'September')
62    a.insert(Tix.END, 'October')
63    a.insert(Tix.END, 'November')
64    a.insert(Tix.END, 'December')
65
66    b.insert(Tix.END, '1992')
67    b.insert(Tix.END, '1993')
68    b.insert(Tix.END, '1994')
69    b.insert(Tix.END, '1995')
70    b.insert(Tix.END, '1996')
71
72    # Use "tixSetSilent" to set the values of the combo box if you
73    # don't want your -command procedures (cbx:select_month and
74    # cbx:select_year) to be called.
75    #
76    a.set_silent('January')
77    b.set_silent('1995')
78
79    box = Tix.ButtonBox(w, orientation=Tix.HORIZONTAL)
80    box.add('ok', text='Ok', underline=0, width=6,
81            command=lambda w=w: ok_command(w))
82    box.add('cancel', text='Cancel', underline=0, width=6,
83            command=lambda w=w: w.destroy())
84    box.pack(side=Tix.BOTTOM, fill=Tix.X)
85    top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
86
87def select_month(event=None):
88    # tixDemo:Status "Month = %s" % demo_month.get()
89    pass
90
91def select_year(event=None):
92    # tixDemo:Status "Year = %s" % demo_year.get()
93    pass
94
95def ok_command(w):
96    # tixDemo:Status "Month = %s, Year= %s" % (demo_month.get(), demo_year.get())
97    w.destroy()
98
99if __name__ == '__main__':
100    root = Tix.Tk()
101    RunSample(root)
102    root.mainloop()
103