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

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#

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# $Id$

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#

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# tixwidgets.py --

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#

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# For Tix, see http://tix.sourceforge.net

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#

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# This is a demo program of some of the Tix widgets available in Python.

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# If you have installed Python & Tix properly, you can execute this as

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#

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# % python tixwidgets.py

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#

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import os, os.path, sys, Tix

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from Tkconstants import *

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import traceback, tkMessageBox

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TCL_DONT_WAIT = 1<<1

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TCL_WINDOW_EVENTS = 1<<2

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TCL_FILE_EVENTS = 1<<3

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TCL_TIMER_EVENTS = 1<<4

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TCL_IDLE_EVENTS = 1<<5

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TCL_ALL_EVENTS = 0

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class Demo:

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def __init__(self, top):

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self.root = top

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self.exit = -1

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self.dir = None # script directory

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self.balloon = None # balloon widget

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self.useBalloons = Tix.StringVar()

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self.useBalloons.set('0')

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self.statusbar = None # status bar widget

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self.welmsg = None # Msg widget

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self.welfont = '' # font name

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self.welsize = '' # font size

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progname = sys.argv[0]

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dirname = os.path.dirname(progname)

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if dirname and dirname != os.curdir:

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self.dir = dirname

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index = -1

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for i in range(len(sys.path)):

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p = sys.path[i]

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if p in ("", os.curdir):

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index = i

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if index >= 0:

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sys.path[index] = dirname

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else:

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sys.path.insert(0, dirname)

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else:

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self.dir = os.getcwd()

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sys.path.insert(0, self.dir+'/samples')

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def MkMainMenu(self):

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top = self.root

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w = Tix.Frame(top, bd=2, relief=RAISED)

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file = Tix.Menubutton(w, text='File', underline=0, takefocus=0)

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help = Tix.Menubutton(w, text='Help', underline=0, takefocus=0)

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file.pack(side=LEFT)

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help.pack(side=RIGHT)

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fm = Tix.Menu(file, tearoff=0)

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file['menu'] = fm

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hm = Tix.Menu(help, tearoff=0)

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help['menu'] = hm

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fm.add_command(label='Exit', underline=1,

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command = lambda self=self: self.quitcmd () )

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hm.add_checkbutton(label='BalloonHelp', underline=0, command=ToggleHelp,

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variable=self.useBalloons)

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# The trace variable option doesn't seem to work, instead I use 'command'

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#apply(w.tk.call, ('trace', 'variable', self.useBalloons, 'w',

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# ToggleHelp))

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return w

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def MkMainNotebook(self):

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top = self.root

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w = Tix.NoteBook(top, ipadx=5, ipady=5, options="""

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tagPadX 6

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tagPadY 4

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borderWidth 2

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""")

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# This may be required if there is no *Background option

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top['bg'] = w['bg']

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w.add('wel', label='Welcome', underline=0,

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createcmd=lambda w=w, name='wel': MkWelcome(w, name))

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w.add('cho', label='Choosers', underline=0,

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createcmd=lambda w=w, name='cho': MkChoosers(w, name))

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w.add('scr', label='Scrolled Widgets', underline=0,

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createcmd=lambda w=w, name='scr': MkScroll(w, name))

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w.add('mgr', label='Manager Widgets', underline=0,

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createcmd=lambda w=w, name='mgr': MkManager(w, name))

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w.add('dir', label='Directory List', underline=0,

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createcmd=lambda w=w, name='dir': MkDirList(w, name))

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w.add('exp', label='Run Sample Programs', underline=0,

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createcmd=lambda w=w, name='exp': MkSample(w, name))

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return w

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def MkMainStatus(self):

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global demo

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top = self.root

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

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demo.statusbar = Tix.Label(w, relief=Tix.SUNKEN, bd=1)

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demo.statusbar.form(padx=3, pady=3, left=0, right='%70')

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return w

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def build(self):

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root = self.root

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z = root.winfo_toplevel()

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z.wm_title('Tix Widget Demonstration')

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if z.winfo_screenwidth() <= 800:

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z.geometry('790x590+10+10')

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else:

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z.geometry('890x640+10+10')

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demo.balloon = Tix.Balloon(root)

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frame1 = self.MkMainMenu()

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frame2 = self.MkMainNotebook()

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frame3 = self.MkMainStatus()

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frame1.pack(side=TOP, fill=X)

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frame3.pack(side=BOTTOM, fill=X)

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frame2.pack(side=TOP, expand=1, fill=BOTH, padx=4, pady=4)

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demo.balloon['statusbar'] = demo.statusbar

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z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())

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# To show Tcl errors - uncomment this to see the listbox bug.

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# Tkinter defines a Tcl tkerror procedure that in effect

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# silences all background Tcl error reporting.

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# root.tk.eval('if {[info commands tkerror] != ""} {rename tkerror pytkerror}')

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def quitcmd (self):

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"""Quit our mainloop. It is up to you to call root.destroy() after."""

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self.exit = 0

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def loop(self):

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"""This is an explict replacement for _tkinter mainloop()

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It lets you catch keyboard interrupts easier, and avoids

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the 20 msec. dead sleep() which burns a constant CPU."""

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while self.exit < 0:

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# There are 2 whiles here. The outer one lets you continue

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# after a ^C interrupt.

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try:

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# This is the replacement for _tkinter mainloop()

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# It blocks waiting for the next Tcl event using select.

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while self.exit < 0:

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self.root.tk.dooneevent(TCL_ALL_EVENTS)

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except SystemExit:

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# Tkinter uses SystemExit to exit

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#print 'Exit'

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self.exit = 1

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return

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except KeyboardInterrupt:

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if tkMessageBox.askquestion ('Interrupt', 'Really Quit?') == 'yes':

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# self.tk.eval('exit')

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self.exit = 1

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return

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continue

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except:

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# Otherwise it's some other error - be nice and say why

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t, v, tb = sys.exc_info()

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text = ""

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for line in traceback.format_exception(t,v,tb):

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text += line + '\n'

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try: tkMessageBox.showerror ('Error', text)

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except: pass

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self.exit = 1

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raise SystemExit, 1

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def destroy (self):

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self.root.destroy()

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def RunMain(root):

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global demo

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demo = Demo(root)

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demo.build()

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demo.loop()

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demo.destroy()

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# Tabs

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def MkWelcome(nb, name):

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w = nb.page(name)

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bar = MkWelcomeBar(w)

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text = MkWelcomeText(w)

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bar.pack(side=TOP, fill=X, padx=2, pady=2)

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

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def MkWelcomeBar(top):

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global demo

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w = Tix.Frame(top, bd=2, relief=Tix.GROOVE)

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b1 = Tix.ComboBox(w, command=lambda w=top: MainTextFont(w))

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b2 = Tix.ComboBox(w, command=lambda w=top: MainTextFont(w))

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b1.entry['width'] = 15

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b1.slistbox.listbox['height'] = 3

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b2.entry['width'] = 4

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b2.slistbox.listbox['height'] = 3

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demo.welfont = b1

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demo.welsize = b2

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b1.insert(Tix.END, 'Courier')

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b1.insert(Tix.END, 'Helvetica')

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b1.insert(Tix.END, 'Lucida')

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b1.insert(Tix.END, 'Times Roman')

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b2.insert(Tix.END, '8')

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b2.insert(Tix.END, '10')

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b2.insert(Tix.END, '12')

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b2.insert(Tix.END, '14')

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b2.insert(Tix.END, '18')

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b1.pick(1)

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b2.pick(3)

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b1.pack(side=Tix.LEFT, padx=4, pady=4)

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b2.pack(side=Tix.LEFT, padx=4, pady=4)

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demo.balloon.bind_widget(b1, msg='Choose\na font',

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statusmsg='Choose a font for this page')

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demo.balloon.bind_widget(b2, msg='Point size',

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statusmsg='Choose the font size for this page')

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return w

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def MkWelcomeText(top):

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global demo

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w = Tix.ScrolledWindow(top, scrollbar='auto')

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win = w.window

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text = 'Welcome to TIX in Python'

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title = Tix.Label(win,

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bd=0, width=30, anchor=Tix.N, text=text)

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msg = Tix.Message(win,

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bd=0, width=400, anchor=Tix.N,

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text='Tix is a set of mega-widgets based on TK. This program \

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demonstrates the widgets in the Tix widget set. You can choose the pages \

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in this window to look at the corresponding widgets. \n\n\

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To quit this program, choose the "File | Exit" command.\n\n\

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For more information, see http://tix.sourceforge.net.')

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title.pack(expand=1, fill=Tix.BOTH, padx=10, pady=10)

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msg.pack(expand=1, fill=Tix.BOTH, padx=10, pady=10)

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demo.welmsg = msg

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return w

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def MainTextFont(w):

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global demo

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if not demo.welmsg:

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return

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font = demo.welfont['value']

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point = demo.welsize['value']

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if font == 'Times Roman':

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font = 'times'

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fontstr = '%s %s' % (font, point)

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demo.welmsg['font'] = fontstr

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def ToggleHelp():

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if demo.useBalloons.get() == '1':

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demo.balloon['state'] = 'both'

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else:

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demo.balloon['state'] = 'none'

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def MkChoosers(nb, name):

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w = nb.page(name)

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options = "label.padX 4"

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til = Tix.LabelFrame(w, label='Chooser Widgets', options=options)

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cbx = Tix.LabelFrame(w, label='tixComboBox', options=options)

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ctl = Tix.LabelFrame(w, label='tixControl', options=options)

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sel = Tix.LabelFrame(w, label='tixSelect', options=options)

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opt = Tix.LabelFrame(w, label='tixOptionMenu', options=options)

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fil = Tix.LabelFrame(w, label='tixFileEntry', options=options)

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fbx = Tix.LabelFrame(w, label='tixFileSelectBox', options=options)

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tbr = Tix.LabelFrame(w, label='Tool Bar', options=options)

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MkTitle(til.frame)

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MkCombo(cbx.frame)

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MkControl(ctl.frame)

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MkSelect(sel.frame)

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MkOptMenu(opt.frame)

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MkFileEnt(fil.frame)

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MkFileBox(fbx.frame)

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MkToolBar(tbr.frame)

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# First column: comBox and selector

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cbx.form(top=0, left=0, right='%33')

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sel.form(left=0, right='&'+str(cbx), top=cbx)

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opt.form(left=0, right='&'+str(cbx), top=sel, bottom=-1)

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# Second column: title .. etc

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til.form(left=cbx, top=0,right='%66')

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ctl.form(left=cbx, right='&'+str(til), top=til)

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fil.form(left=cbx, right='&'+str(til), top=ctl)

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tbr.form(left=cbx, right='&'+str(til), top=fil, bottom=-1)

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#

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# Third column: file selection

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fbx.form(right=-1, top=0, left='%66')

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def MkCombo(w):

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options="label.width %d label.anchor %s entry.width %d" % (10, Tix.E, 14)

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static = Tix.ComboBox(w, label='Static', editable=0, options=options)

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editable = Tix.ComboBox(w, label='Editable', editable=1, options=options)

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history = Tix.ComboBox(w, label='History', editable=1, history=1,

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anchor=Tix.E, options=options)

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

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

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

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

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

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

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

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

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

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

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

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

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editable.insert(Tix.END, 'Angola')

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editable.insert(Tix.END, 'Bangladesh')

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editable.insert(Tix.END, 'China')

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editable.insert(Tix.END, 'Denmark')

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editable.insert(Tix.END, 'Ecuador')

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history.insert(Tix.END, '/usr/bin/ksh')

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history.insert(Tix.END, '/usr/local/lib/python')

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history.insert(Tix.END, '/var/adm')

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static.pack(side=Tix.TOP, padx=5, pady=3)

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editable.pack(side=Tix.TOP, padx=5, pady=3)

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history.pack(side=Tix.TOP, padx=5, pady=3)

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states = ['Bengal', 'Delhi', 'Karnataka', 'Tamil Nadu']

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def spin_cmd(w, inc):

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idx = states.index(demo_spintxt.get()) + inc

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if idx < 0:

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idx = len(states) - 1

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elif idx >= len(states):

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idx = 0

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# following doesn't work.

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# return states[idx]

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demo_spintxt.set(states[idx]) # this works

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def spin_validate(w):

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global states, demo_spintxt

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try:

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i = states.index(demo_spintxt.get())

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except ValueError:

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return states[0]

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return states[i]

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# why this procedure works as opposed to the previous one beats me.

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def MkControl(w):

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global demo_spintxt

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options="label.width %d label.anchor %s entry.width %d" % (10, Tix.E, 13)

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demo_spintxt = Tix.StringVar()

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demo_spintxt.set(states[0])

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simple = Tix.Control(w, label='Numbers', options=options)

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spintxt = Tix.Control(w, label='States', variable=demo_spintxt,

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options=options)

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spintxt['incrcmd'] = lambda w=spintxt: spin_cmd(w, 1)

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spintxt['decrcmd'] = lambda w=spintxt: spin_cmd(w, -1)

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spintxt['validatecmd'] = lambda w=spintxt: spin_validate(w)

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simple.pack(side=Tix.TOP, padx=5, pady=3)

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spintxt.pack(side=Tix.TOP, padx=5, pady=3)

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def MkSelect(w):

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options = "label.anchor %s" % Tix.CENTER

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sel1 = Tix.Select(w, label='Mere Mortals', allowzero=1, radio=1,

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orientation=Tix.VERTICAL,

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labelside=Tix.TOP,

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options=options)

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sel2 = Tix.Select(w, label='Geeks', allowzero=1, radio=0,

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orientation=Tix.VERTICAL,

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labelside= Tix.TOP,

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options=options)

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sel1.add('eat', text='Eat')

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sel1.add('work', text='Work')

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sel1.add('play', text='Play')

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sel1.add('party', text='Party')

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sel1.add('sleep', text='Sleep')

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sel2.add('eat', text='Eat')

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sel2.add('prog1', text='Program')

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sel2.add('prog2', text='Program')

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sel2.add('prog3', text='Program')

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sel2.add('sleep', text='Sleep')

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sel1.pack(side=Tix.LEFT, padx=5, pady=3, fill=Tix.X)

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sel2.pack(side=Tix.LEFT, padx=5, pady=3, fill=Tix.X)

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def MkOptMenu(w):

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options='menubutton.width 15 label.anchor %s' % Tix.E

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m = Tix.OptionMenu(w, label='File Format : ', options=options)

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m.add_command('text', label='Plain Text')

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m.add_command('post', label='PostScript')

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m.add_command('format', label='Formatted Text')

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m.add_command('html', label='HTML')

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m.add_command('sep')

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m.add_command('tex', label='LaTeX')

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m.add_command('rtf', label='Rich Text Format')

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m.pack(fill=Tix.X, padx=5, pady=3)

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def MkFileEnt(w):

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msg = Tix.Message(w,

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relief=Tix.FLAT, width=240, anchor=Tix.N,

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text='Press the "open file" icon button and a TixFileSelectDialog will popup.')

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ent = Tix.FileEntry(w, label='Select a file : ')

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msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)

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ent.pack(side=Tix.TOP, fill=Tix.X, padx=3, pady=3)

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def MkFileBox(w):

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"""The FileSelectBox is a Motif-style box with various enhancements.

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For example, you can adjust the size of the two listboxes

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and your past selections are recorded.

[428] Fix | Delete

"""

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msg = Tix.Message(w,

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relief=Tix.FLAT, width=240, anchor=Tix.N,

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text='The Tix FileSelectBox is a Motif-style box with various enhancements. For example, you can adjust the size of the two listboxes and your past selections are recorded.')

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box = Tix.FileSelectBox(w)

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msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)

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box.pack(side=Tix.TOP, fill=Tix.X, padx=3, pady=3)

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def MkToolBar(w):

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"""The Select widget is also good for arranging buttons in a tool bar.

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"""

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global demo

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options='frame.borderWidth 1'

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msg = Tix.Message(w,

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relief=Tix.FLAT, width=240, anchor=Tix.N,

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text='The Select widget is also good for arranging buttons in a tool bar.')

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bar = Tix.Frame(w, bd=2, relief=Tix.RAISED)

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font = Tix.Select(w, allowzero=1, radio=0, label='', options=options)

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para = Tix.Select(w, allowzero=0, radio=1, label='', options=options)

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font.add('bold', bitmap='@' + demo.dir + '/bitmaps/bold.xbm')

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font.add('italic', bitmap='@' + demo.dir + '/bitmaps/italic.xbm')

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font.add('underline', bitmap='@' + demo.dir + '/bitmaps/underline.xbm')

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font.add('capital', bitmap='@' + demo.dir + '/bitmaps/capital.xbm')

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para.add('left', bitmap='@' + demo.dir + '/bitmaps/leftj.xbm')

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para.add('right', bitmap='@' + demo.dir + '/bitmaps/rightj.xbm')

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para.add('center', bitmap='@' + demo.dir + '/bitmaps/centerj.xbm')

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para.add('justify', bitmap='@' + demo.dir + '/bitmaps/justify.xbm')

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msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)

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bar.pack(side=Tix.TOP, fill=Tix.X, padx=3, pady=3)

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font.pack({'in':bar}, side=Tix.LEFT, padx=3, pady=3)

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para.pack({'in':bar}, side=Tix.LEFT, padx=3, pady=3)

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def MkTitle(w):

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msg = Tix.Message(w,

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relief=Tix.FLAT, width=240, anchor=Tix.N,

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text='There are many types of "chooser" widgets that allow the user to input different types of information')

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msg.pack(side=Tix.TOP, expand=1, fill=Tix.BOTH, padx=3, pady=3)

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def MkScroll(nb, name):

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w = nb.page(name)

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options='label.padX 4'

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sls = Tix.LabelFrame(w, label='Tix.ScrolledListBox', options=options)

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swn = Tix.LabelFrame(w, label='Tix.ScrolledWindow', options=options)

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stx = Tix.LabelFrame(w, label='Tix.ScrolledText', options=options)

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MkSList(sls.frame)

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MkSWindow(swn.frame)

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MkSText(stx.frame)

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sls.form(top=0, left=0, right='%33', bottom=-1)

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swn.form(top=0, left=sls, right='%66', bottom=-1)

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stx.form(top=0, left=swn, right=-1, bottom=-1)

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[487] Fix | Delete

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def MkSList(w):

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"""This TixScrolledListBox is configured so that it uses scrollbars

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only when it is necessary. Use the handles to resize the listbox and

[491] Fix | Delete

watch the scrollbars automatically appear and disappear. """

[492] Fix | Delete

top = Tix.Frame(w, width=300, height=330)

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bot = Tix.Frame(w)

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msg = Tix.Message(top,

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relief=Tix.FLAT, width=200, anchor=Tix.N,

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text='This TixScrolledListBox is configured so that it uses scrollbars only when it is necessary. Use the handles to resize the listbox and watch the scrollbars automatically appear and disappear.')

[497] Fix | Delete

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list = Tix.ScrolledListBox(top, scrollbar='auto')

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