[pygame] centered screen position using SDL_VIDEO_CENTERED

["Boer Kees" <mstrblstrprdctns@xxxxxxxxxxx>]

#!/usr/bin/env python
import pygame
from pygame.locals import *

#center screen
import os
#os.environ["SDL_VIDEO_CENTERED"] = "1"   ## (UN)COMMENT TO SEE EFFECT

# WITH os.environ["SDL_VIDEO_CENTERED"] = "1" :
#when maximized: window does not make it to the top -> half of the taskbars 
height??
#when resizing: need new screen (with new size), which pops the window back 
to the middle
# WHAT! oh NO! (and writing os.environ["SDL_VIDEO_CENTERED"] = "0"  there 
does NOT work,
#the window is already initialised WITH those paramaters I guess)

# withOUT os.environ["SDL_VIDEO_CENTERED"] = "1" :
#resizing goes as planned, maximizing works normally, BUT! the screen starts 
in the top left corner
# (or closelyby) WHAT! oh NO!

#my goal? to have a window at least under W32 (but preferably 
crossplatform!), behave well,
# like a normal window?

#I want my user to have a fresh window put in the middle, he places it 
somewhere, resize it #somewhat, and then, when the user closes the window: i 
save the settings, so I start up at the
#same place, same size, next time! now, THATS service!

#any ideas???

#init pygame
pygame.init()
#load bmp as icon, black as transparancy key
try:
   rawicon=pygame.image.load('icon.bmp')
except: #no icon found
   rawicon=pygame.Surface((32,32))
   rawicon.fill((0,0,0))
icon=pygame.Surface(rawicon.get_size())
icon.set_colorkey((0,0,0))
for i in range(0,rawicon.get_height()):
   for j in range(0,rawicon.get_width()):
       icon.set_at((i,j), rawicon.get_at((i,j)))
pygame.display.set_icon(icon)
#init screen
screen=pygame.display.set_mode((250,250), RESIZABLE)
pygame.display.set_caption("test")
mousecount=0 #to filter some mouse events

while 1:#loop till death:
   #handle user input:
   for event in pygame.event.get():#loop all events pygame detected:
       #pgs.checkinput(event)
       if event.type == QUIT: # detect user break/closewindowevent
           print "close"
           raise SystemExit
       elif event.type == KEYDOWN and event.key == K_ESCAPE: #detect escape
           print "escape"
           raise SystemExit
       elif event.type == VIDEORESIZE:#user changed screensize
           print "resize from " + str(screen.get_size()) + " to "+ 
str(event.size)
           screen=pygame.display.set_mode(event.size, RESIZABLE)
       elif event.type == MOUSEMOTION:
           if mousecount%250==0:#only show if mousecount/250 has no left 
overs
               print str(event)
           mousecount+=1
       else:
           print str(event)
   pygame.display.flip() # show screen

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