wid_specgram.py 文件源码

def ShotWid():
        """ this simple widget accepts a shot and sets the current one
        It is a function in the IntegerCtl class, so it communicates with
        its vars easily and calls do_shot to update the shot.  THe
        shot pulldown stops working in python (ordinary) after 1
        pulldown?

        """
        global hist_box, select_box, wild_box
#        root=Tix.Tk(className='ShotSelect')  # was here but needs to
#        be in effect before Tix.StringVar() is called
        top = Tix.Frame(root, bd=1, relief=Tix.RAISED)
        hist_box=Tix.ComboBox(top, label="Shot", editable=True, history=True,
                             variable=shot_string, command=do_shot,
                             options='entry.width 8 listbox.height 10 ')
        hist_box.pack(side=Tix.TOP, anchor=Tix.W)
        hist_box.set_silent('33373')
        hist_balloon=Tix.Balloon(top)
        hist_balloon.bind_widget(hist_box, balloonmsg='Choose or enter shot number, valid ones are saved here')

        wild_box=Tix.ComboBox(top, label="Filter", editable=1, history=1,
                             variable=wild_string, command=update_select,
                             options='entry.width 20 listbox.height 5 ')   # allow room for expressions
        wild_box.pack(side=Tix.TOP, anchor=Tix.W)
        wild_balloon=Tix.Balloon(top)
        wild_balloon.bind_widget(wild_box, 
                                 balloonmsg='Choose or enter new filter in one of three forms,' + 
                                 'a Python expression (must have () or []), '+ 
                                 'a directory specification including a * or ' +
                                 'the name of a file containing lines beginning with a shot number. '
                                 'Results can be chosen using "Filtered Shots"')

        select_box=Tix.ComboBox(top, label="Filtered Shots", history=False,
                             variable=select_string, command=do_shot,
                             options='entry.width 8 listbox.height 40 ')
        btn = Tix.Button(select_box, text='Clear',command=clear_select)
        btn.pack(anchor=Tix.CENTER)
        select_box.pack(side=Tix.TOP, anchor=Tix.W)
        select_balloon=Tix.Balloon(top)
        select_balloon.bind_widget(select_box, balloonmsg='pull down to find a shot selected by "Filter""')
        #wild_box.set_silent('MP1')  # not silent - want it all to happen, but setvar doesn't work

        update_select(partial_name=wild_card)

        top.pack(side=Tix.TOP, fill=Tix.BOTH, expand=1)
# no need in pylab provided tkagg is used     root.mainloop()
# in fact, may conflict and block - hard to sort out what blocks and when, why