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

#

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

#

# tixwidgets.py --

#

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

#

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

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

#

#               % python tixwidgets.py

#

import os, os.path, sys, Tix

from Tkconstants import *

import traceback, tkMessageBox

TCL_DONT_WAIT           = 1<<1

TCL_WINDOW_EVENTS       = 1<<2

TCL_FILE_EVENTS         = 1<<3

TCL_TIMER_EVENTS        = 1<<4

TCL_IDLE_EVENTS         = 1<<5

TCL_ALL_EVENTS          = 0

class Demo:

    def __init__(self, top):

        self.root = top

        self.exit = -1

        self.dir = None                         # script directory

        self.balloon = None                     # balloon widget

        self.useBalloons = Tix.StringVar()

        self.useBalloons.set('0')

        self.statusbar = None                   # status bar widget

        self.welmsg = None                      # Msg widget

        self.welfont = ''                       # font name

        self.welsize = ''                       # font size

        progname = sys.argv[0]

        dirname = os.path.dirname(progname)

        if dirname and dirname != os.curdir:

            self.dir = dirname

            index = -1

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

                p = sys.path[i]

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

                    index = i

            if index >= 0:

                sys.path[index] = dirname

            else:

                sys.path.insert(0, dirname)

        else:

            self.dir = os.getcwd()

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

    def MkMainMenu(self):

        top = self.root

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

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

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

        file.pack(side=LEFT)

        help.pack(side=RIGHT)

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

        file['menu'] = fm

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

        help['menu'] = hm

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

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

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

                           variable=self.useBalloons)

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

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

        #                     ToggleHelp))

        return w

    def MkMainNotebook(self):

        top = self.root

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

        tagPadX 6

        tagPadY 4

        borderWidth 2

        """)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        return w

    def MkMainStatus(self):

        global demo

        top = self.root

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

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

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

        return w

    def build(self):

        root = self.root

        z = root.winfo_toplevel()

        z.wm_title('Tix Widget Demonstration')

        if z.winfo_screenwidth() <= 800:

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

        else:

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

        demo.balloon = Tix.Balloon(root)

        frame1 = self.MkMainMenu()

        frame2 = self.MkMainNotebook()

        frame3 = self.MkMainStatus()

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

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

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

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

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

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

        # Tkinter defines a Tcl tkerror procedure that in effect

        # silences all background Tcl error reporting.

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

    def quitcmd (self):

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

        self.exit = 0

    def loop(self):

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

        It lets you catch keyboard interrupts easier, and avoids

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

        while self.exit < 0:

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

            # after a ^C interrupt.

            try:

                # This is the replacement for _tkinter mainloop()

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

                while self.exit < 0:

                    self.root.tk.dooneevent(TCL_ALL_EVENTS)

            except SystemExit:

                # Tkinter uses SystemExit to exit

                #print 'Exit'

                self.exit = 1

                return

            except KeyboardInterrupt:

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

                    # self.tk.eval('exit')

                    self.exit = 1

                    return

                continue

            except:

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

                t, v, tb = sys.exc_info()

                text = ""

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

                    text += line + '\n'

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

                except: pass

                self.exit = 1

                raise SystemExit, 1

    def destroy (self):

        self.root.destroy()

def RunMain(root):

    global demo

    demo = Demo(root)

    demo.build()

    demo.loop()

    demo.destroy()

# Tabs

def MkWelcome(nb, name):

    w = nb.page(name)

    bar = MkWelcomeBar(w)

    text = MkWelcomeText(w)

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

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

def MkWelcomeBar(top):

    global demo

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

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

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

    b1.entry['width'] = 15

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

    b2.entry['width'] = 4

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

    demo.welfont = b1

    demo.welsize = b2

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

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

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

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

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

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

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

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

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

    b1.pick(1)

    b2.pick(3)

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

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

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

                             statusmsg='Choose a font for this page')

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

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

    return w

def MkWelcomeText(top):

    global demo

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

    win = w.window

    text = 'Welcome to TIX in Python'

    title = Tix.Label(win,

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

    msg = Tix.Message(win,

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

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

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

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

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

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

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

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

    demo.welmsg = msg

    return w

def MainTextFont(w):

    global demo

    if not demo.welmsg:

        return

    font = demo.welfont['value']

    point = demo.welsize['value']

    if font == 'Times Roman':

        font = 'times'

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

    demo.welmsg['font'] = fontstr

def ToggleHelp():

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

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

    else:

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

def MkChoosers(nb, name):

    w = nb.page(name)

    options = "label.padX 4"

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

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

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

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

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

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

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

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

    MkTitle(til.frame)

    MkCombo(cbx.frame)

    MkControl(ctl.frame)

    MkSelect(sel.frame)

    MkOptMenu(opt.frame)

    MkFileEnt(fil.frame)

    MkFileBox(fbx.frame)

    MkToolBar(tbr.frame)

    # First column: comBox and selector

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

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

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

    # Second column: title .. etc

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

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

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

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

    #

    # Third column: file selection

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

def MkCombo(w):

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

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

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

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

                           anchor=Tix.E, options=options)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

def spin_cmd(w, inc):

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

    if idx < 0:

        idx = len(states) - 1

    elif idx >= len(states):

        idx = 0

# following doesn't work.

#    return states[idx]

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

def spin_validate(w):

    global states, demo_spintxt

    try:

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

    except ValueError:

        return states[0]

    return states[i]

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

def MkControl(w):

    global demo_spintxt

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

    demo_spintxt = Tix.StringVar()

    demo_spintxt.set(states[0])

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

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

                          options=options)

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

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

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

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

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

def MkSelect(w):

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

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

                      orientation=Tix.VERTICAL,

                      labelside=Tix.TOP,

                      options=options)

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

                      orientation=Tix.VERTICAL,

                      labelside= Tix.TOP,

                      options=options)

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

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

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

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

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

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

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

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

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

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

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

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

def MkOptMenu(w):

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

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

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

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

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

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

    m.add_command('sep')

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

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

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

def MkFileEnt(w):

    msg = Tix.Message(w,

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

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

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

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

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

def MkFileBox(w):

    """The 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.

    """

    msg = Tix.Message(w,

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

                      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.')

    box = Tix.FileSelectBox(w)

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

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

def MkToolBar(w):

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

    """

    global demo

    options='frame.borderWidth 1'

    msg = Tix.Message(w,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

def MkTitle(w):

    msg = Tix.Message(w,

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

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

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

def MkScroll(nb, name):

    w = nb.page(name)

    options='label.padX 4'

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

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

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

    MkSList(sls.frame)

    MkSWindow(swn.frame)

    MkSText(stx.frame)

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

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

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

def MkSList(w):

    """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.  """

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

    bot = Tix.Frame(w)

    msg = Tix.Message(top,

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

                      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.')

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

    list.place(x=50, y=150, width=120, height=80)

    list.listbox.insert(Tix.END, 'Alabama')

    list.listbox.insert(Tix.END, 'California')

    list.listbox.insert(Tix.END, 'Montana')

    list.listbox.insert(Tix.END, 'New Jersey')

    list.listbox.insert(Tix.END, 'New York')

    list.listbox.insert(Tix.END, 'Pennsylvania')

    list.listbox.insert(Tix.END, 'Washington')

    rh = Tix.ResizeHandle(top, bg='black',

                          relief=Tix.RAISED,

                          handlesize=8, gridded=1, minwidth=50, minheight=30)

    btn = Tix.Button(bot, text='Reset', command=lambda w=rh, x=list: SList_reset(w,x))

    top.propagate(0)

    msg.pack(fill=Tix.X)

    btn.pack(anchor=Tix.CENTER)

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

    bot.pack(fill=Tix.BOTH)

    list.bind('<Map>', func=lambda arg=0, rh=rh, list=list:

              list.tk.call('tixDoWhenIdle', str(rh), 'attachwidget', str(list)))

def SList_reset(rh, list):

    list.place(x=50, y=150, width=120, height=80)

    list.update()

    rh.attach_widget(list)

def MkSWindow(w):

    """The ScrolledWindow widget allows you to scroll any kind of Tk