def StartSession():
global countdown_timer
logger.info("START CAPTURE %d" % (stats.incr_session_count()))
# turn off blink timer
pygame.time.set_timer(EVT_BTN_BLINK, 0)
# start picture taking timer
pygame.time.set_timer(EVT_PICTURE, int(config.DELAY_SECS * 1000))
# start countdown update timer
countdown_timer = config.DELAY_SECS
pygame.time.set_timer(EVT_COUNTDOWN, 1000)
# update screen
gui.bg_redraw(screen)
gui.show_all_thumbnail_markers(screen)
gui.show_thumbnail_marker(screen, 0, config.MARKER_SELECT_COLOR)
gui.display_delay(screen, "Get Ready...", countdown_timer)
pygame.display.flip()
maintenance_mode = False
capture_in_progress = False
countdown_timer = 0
# Main processing loop
while not on_exit :
events = pygame.event.get()
for event in events:
if event.type == EVT_COUNTDOWN:
#######################################################
# Decrement time displayed until next picture is taken
#######################################################
logger.info("EVT_COUNTDOWN")
countdown_timer = countdown_timer - 1
gui.display_delay(screen, "Get Ready...", countdown_timer)
if countdown_timer <= 1:
pygame.time.set_timer(EVT_COUNTDOWN, 0)
elif event.type == pygame.KEYDOWN:
#######################################################
# Handle keystrokes
#######################################################
logger.info("EVT_KEYDOWN: " + str(event))
if (event.key == pygame.K_ESCAPE or event.key == pygame.K_q):
# Quit
on_exit = True
elif not capture_in_progress:
if (event.key == pygame.K_m):
# Toggle maintenance mode
SetMaintenanceMode(not maintenance_mode)
