#!/usr/bin/env python

#####################################################################
#                                                                   #
#  File:  cdat_demo                                                 #
#  Date:  16-Mar-2006                                               #
#  Desc:  The top level CDAT demo application script.               #
#                                                                   #
#####################################################################

# First initialize Tkinter. The root window will contain
# the main demo application.
import Tkinter
root = Tkinter.Tk()
root.withdraw()

# Create the splash screen. We want to display it as quickly
# as possible, before importing modules and initializing Pmw.
import demo
splash = demo.DemoSplash ()

# Hide the window before it's properly positioned.
splash.withdraw()    

# Force the display to update because we need true position.
splash.update_idletasks()  

# Position the splash screen in the middle of the screen.
splash_w = splash.winfo_reqwidth()
splash_h = splash.winfo_reqheight()
screen_w = splash.winfo_screenwidth()
screen_h = splash.winfo_screenheight()
x = (screen_w - splash_w) / 2
y = (screen_h - splash_h) / 2
geo = '%dx%d+%d+%d' % (splash_w, splash_h, x, y)
splash.geometry(geo)

# Disable resize of splash screen.
splash.resizable (width=0, height=0)

# Update the display with changed position and show the splash screen.
splash.update_idletasks()
splash.deiconify()

import sys
import Pmw

commandLineArgSpecs = (
    ('fontscheme', 0, 'scheme',  'fonts to use [eg pmw2] (Tk defaults)'),
    ('fontsize',   0, 'num',     'size of fonts to use with fontscheme', 12),
    ('stdout',     0, demo.Bool, 'print messages rather than display in label'),)

program = sys.argv[0]
msg = demo.parseArgs(program, sys.argv, commandLineArgSpecs, 0)
if msg is not None:
    print msg 
    sys.exit()

fsize   = demo.get ('fontsize')
fscheme = demo.get ('fontscheme')

Pmw.initialise (root,
                size = fsize,
                fontScheme = fscheme,
                useTkOptionDb = 1)

if demo.get('stdout'):
    menu = demo.MainMenu (root, stdout = 1)
else:
    menu = demo.MainMenu (root)

menu.pack()
menu.update_idletasks()

# Kill the splash screen after a timeout.
def kill_splash ():
    splash.destroy()
from threading import Timer
tt = Timer (4.0, kill_splash)
tt.start()

root.update()

# Force a minimal pause before showing the main demo app window.
import time
time.sleep(2)

# Display the root application window. 
root.deiconify()

root.resizable (width=0, height=0)
root.mainloop()