Simple hands-free (with arduino-powered, foot-actuated, usb spacebar) workflow for stop motion animators.

stills.py

from VideoCapture import Device
import pygame
import datetime
import glob

cam = Device()

pic_dir = './'
pic_ext = '.jpg'
pics = glob.glob(pic_dir+'*'+pic_ext)

background_color = (255,255,255)
(width, height) = (640,480)

screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('Stills')
screen.fill(background_color)

pygame.display.flip()

index = -1
running = True
while running:
  for event in pygame.event.get():
    if event.type == pygame.QUIT:
      running = False
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_SPACE:
            stamp = datetime.datetime.strftime(datetime.datetime.now(),'%Y%m%d%H%M%S%f')
            path = pic_dir + stamp + pic_ext
            cam.saveSnapshot(path)
            img = pygame.image.load(path)
            pics.append(path)
            index = -1
            screen.blit(img, (0,0))
            pygame.display.flip()
        elif event.key == pygame.K_LEFT:
            index -= 1
            try:
                path = pics[index]
            except IndexError:
                index = -1
                path = pics[index]
            img = pygame.image.load(path)
            screen.blit(img, (0,0))
            pygame.display.flip()
        elif event.key == pygame.K_RIGHT:
            index += 1
            try:
                path = pics[index]
            except IndexError:
                index = 0
                path = pics[index]
            img = pygame.image.load(path)
            screen.blit(img, (0,0))
            pygame.display.flip()