Modify fig24_06.py so that a user can play, stop, pause and rewind a movie.

Question

What will be an ideal response?

Answer 1

```
# Simple movie player using pygame.

import os
import sys
import pygame, pygame.movie, pygame.font
import pygame.mouse, pygame.image
from pygame.locals import *

def createGUI( file ):

# define global values
global movie, screen, width, height, playImageSize
global stopImageSize, pauseImageSize, rewindImageSize

# load movie
movie = pygame.movie.Movie( file )
width, height = movie.get_size()

# initialize display window
screen = pygame.display.set_mode( ( width, height + 100 ) )
pygame.display.set_caption( "Movie Player" )
pygame.mouse.set_visible( 1 )

# play button
playImageFile = os.path.join( "data", "play.png" )
playImage, playImageSize = addButton( playImageFile, 50 )

# stop button
stopImageFile = os.path.join( "data", "stop.png" )
stopImage, stopImageSize = addButton( stopImageFile, 130 )

# pause button
pauseImageFile = os.path.join( "data", "pause.png" )
pauseImage, pauseImageSize = addButton( pauseImageFile, 210 )

# rewind button
rewindImageFile = os.path.join( "data", "rwd.png" )
rewindImage, rewindImageSize = addButton(
rewindImageFile, 290 )

# copy play button to screen
screen.blit( playImage, playImageSize )
screen.blit( stopImage, stopImageSize )
screen.blit( pauseImage, pauseImageSize )
screen.blit( rewindImage, rewindImageSize )
pygame.display.flip()

# set output surface for the movie's video
movie.set_display( screen )

def addButton( imageFile, centerX ):
buttonImage = pygame.image.load( imageFile ).convert()
buttonImage.set_colorkey( buttonImage.get_at( ( 0, 0 ) ) )
buttonImageSize = buttonImage.get_rect()
buttonImageSize.centerx = centerX
buttonImageSize.centery = height + 50

return buttonImage, buttonImageSize

def main():

# check command line arguments
if len( sys.argv ) != 2:
sys.exit( "Incorrect number of arguments." )
else:
file = sys.argv[ 1 ]

# initialize pygame
pygame.init()

# create GUI
createGUI( file )

# wait until player wants to close program
while 1:
event = pygame.event.poll()

# close window
if event.type == QUIT or \
( event.type == KEYDOWN and event.key == K_ESCAPE ):
break

# click play button and play movie
pressed = pygame.mouse.get_pressed()[ 0 ]
position = pygame.mouse.get_pos()

if pressed:

if playImageSize.collidepoint( position ):
movie.play()

elif stopImageSize.collidepoint( position ):
movie.stop()
movie.rewind()

elif pauseImageSize.collidepoint( position ):
movie.pause()

elif rewindImageSize.collidepoint( position ):
movie.rewind()
screen.fill(
( 250, 250, 250 ), ( 0, 0, width, height ) )
pygame.display.flip()

if __name__ == "__main__":
main()
```