Demo/tix/samples/ComboBox.py

   1 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
   2 #
   3 # $Id$
   4 #
   5 # Tix Demostration 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 #
  16 import Tix
  17
  18 def 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
  87 def select_month(event=None):
  88     # tixDemo:Status "Month = %s" % demo_month.get()
  89     pass
  90
  91 def select_year(event=None):
  92     # tixDemo:Status "Year = %s" % demo_year.get()
  93     pass
  94
  95 def ok_command(w):
  96     # tixDemo:Status "Month = %s, Year= %s" % (demo_month.get(), demo_year.get())
  97     w.destroy()
  98
  99 if __name__ == '__main__':
 100     root = Tix.Tk()
 101     RunSample(root)
 102     root.mainloop()