def __init__(self, settings, **kwargs):
Logger.info('PhotoboothApp: __init__().')
super(PhotoboothApp, self).__init__(**kwargs)
self.settings = settings
self.sm = None
self.state_machine = PhotoboothState()
self.countdown = None
self.processes = []
photobuffer = '/tmp/photobooth'
self.photonames = {
PhotoboothState.PHOTO1: os.path.join(photobuffer, 'photo1.jpg'),
PhotoboothState.PHOTO2: os.path.join(photobuffer, 'photo2.jpg'),
PhotoboothState.PHOTO3: os.path.join(photobuffer, 'photo3.jpg'),
}
self.montage_image = os.path.join(photobuffer, 'montage.jpg')
self.canvas_image = os.path.join(photobuffer, 'canvas.jpg')
self.print_image = os.path.join(photobuffer, 'composite.jpg')
if not os.path.exists(photobuffer):
os.makedirs(photobuffer)
if self.settings.save and not os.path.exists(self.settings.save):
os.makedirs(self.settings.save)
cmd = (
'convert '
'-size {width}x{height} '
'xc: {color} '
'{filename}'.format(
width=self.settings.image_width,
height=self.settings.image_height,
color=self.settings.background_color,
filename=self.canvas_image
)
)
subprocess.call(shlex.split(cmd))
class PhotoboothApp(App):
def __init__(self, settings, **kwargs):
Logger.info('PhotoboothApp: __init__().')
super(PhotoboothApp, self).__init__(**kwargs)
self.settings = settings
self.sm = None
self.state_machine = PhotoboothState()
self.countdown = None
self.processes = []
photobuffer = '/tmp/photobooth'
self.photonames = {
PhotoboothState.PHOTO1: os.path.join(photobuffer, 'photo1.jpg'),
PhotoboothState.PHOTO2: os.path.join(photobuffer, 'photo2.jpg'),
PhotoboothState.PHOTO3: os.path.join(photobuffer, 'photo3.jpg'),
}
self.montage_image = os.path.join(photobuffer, 'montage.jpg')
self.canvas_image = os.path.join(photobuffer, 'canvas.jpg')
self.print_image = os.path.join(photobuffer, 'composite.jpg')
if not os.path.exists(photobuffer):
os.makedirs(photobuffer)
if self.settings.save and not os.path.exists(self.settings.save):
os.makedirs(self.settings.save)
cmd = (
'convert '
'-size {width}x{height} '
'xc: {color} '
'{filename}'.format(
width=self.settings.image_width,
height=self.settings.image_height,
color=self.settings.background_color,
filename=self.canvas_image
)
)
subprocess.call(shlex.split(cmd))
def build(self):
"""Build UI.
User interface objects stored in the photoboothapp must be created here,
not in __init__().
"""
Logger.info('PhotoboothApp: build().')
self.sm = ScreenMgr(self, transition=NoTransition())
return self.sm
def start_event(self):
"""Waiting screen start button pressed."""
Logger.info('PhotoboothApp: start_event().')
self.state_machine.transition_to(PhotoboothState.COUNTDOWN1)
self.sm.pb_screens[ScreenMgr.COUNTDOWN].start_countdown(
self.settings.initial_wait_time
)
self.sm.current = ScreenMgr.COUNTDOWN
def photo_event(self):
"""Time to take a picture."""
Logger.info('PhotoboothApp: photo_event().')
if self.state_machine.state not in (
PhotoboothState.COUNTDOWN1,
PhotoboothState.COUNTDOWN2,
PhotoboothState.COUNTDOWN3
):
Logger.error(
'photo event occurred unexpectedly in "%s"',
self.state_machine.state
)
self.sm.current = ScreenMgr.WAITING
self.state_machine.transition_to(PhotoboothState.WAITING)
return
if self.state_machine.state == PhotoboothState.COUNTDOWN1:
state = PhotoboothState.PHOTO1
elif self.state_machine.state == PhotoboothState.COUNTDOWN2:
state = PhotoboothState.PHOTO2
else:
state = PhotoboothState.PHOTO3
# Update UI.
self.sm.pb_screens[ScreenMgr.CHEESE].on_entry()
self.sm.current = ScreenMgr.CHEESE
# Take the picture.
self.capture_image(self.photonames[state])
self.state_machine.transition_to(state)
def photo_complete_event(self):
"""Camera finished taking picture."""
Logger.info('PhotoboothApp: photo_complete_event().')
if self.state_machine.state not in (
PhotoboothState.PHOTO1,
PhotoboothState.PHOTO2,
PhotoboothState.PHOTO3
):
Logger.error(
'photo complete event occurred unexpectedly in "%s"',
self.state_machine.state
)
self.sm.current = ScreenMgr.WAITING
self.state_machine.transition_to(PhotoboothState.WAITING)
return
if self.state_machine.state == PhotoboothState.PHOTO1:
state = PhotoboothState.COUNTDOWN2
self.sm.pb_screens[ScreenMgr.COUNTDOWN].start_countdown(
self.settings.wait_time
)
self.sm.current = ScreenMgr.COUNTDOWN
elif self.state_machine.state == PhotoboothState.PHOTO2:
state = PhotoboothState.COUNTDOWN3
self.sm.pb_screens[ScreenMgr.COUNTDOWN].start_countdown(
self.settings.wait_time
)
self.sm.current = ScreenMgr.COUNTDOWN
else:
if self.settings.skip_select:
state = PhotoboothState.PRINTING
self.sm.pb_screens[ScreenMgr.PRINTING].on_entry()
self.sm.current = ScreenMgr.PRINTING
else:
state = PhotoboothState.SELECTING
self.sm.pb_screens[ScreenMgr.SELECTING].on_entry()
self.sm.current = ScreenMgr.SELECTING
self.state_machine.transition_to(state)
def cancel_event(self):
"""Session canceled."""
Logger.info('PhotoboothApp: cancel_event().')
if self.state_machine.state != PhotoboothState.SELECTING:
Logger.error(
'cancel event occurred unexpectedly in "%s"',
self.state_machine.state
)
self.sm.current = ScreenMgr.WAITING
self.state_machine.transition_to(PhotoboothState.WAITING)
def print_event(self):
"""Print request."""
Logger.info('PhotoboothApp: print_event().')
if self.state_machine.state != PhotoboothState.SELECTING:
Logger.error(
'print event occurred unexpectedly in "%s"',
self.state_machine.state
)
self.sm.current = ScreenMgr.WAITING
self.state_machine.transition_to(PhotoboothState.WAITING)
return
self.sm.pb_screens[ScreenMgr.PRINTING].on_entry()
self.sm.current = ScreenMgr.PRINTING
self.state_machine.transition_to(PhotoboothState.PRINTING)
def capture_image(self, filename):
"""Launch process to capture image with camera."""
Logger.info('PhotoboothApp: capture_image(%s).', filename)
cmd = (
'gphoto2 '
'--capture-image-and-download '
'--filename {filename} '
'--keep '
'--force-overwrite'.format(filename=filename)
)
cmd = shlex.split(cmd)
self.processes = [subprocess.Popen(cmd)]
def resize_images(self):
"""Launch processes to resize images."""
Logger.info('PhotoboothApp: resize_images().')
cmd = 'convert {src} -resize {width}x{height} {dest}'
self.processes = [
subprocess.Popen(
shlex.split(
cmd.format(
src=fname,
width=880,
height=580,
dest=self.resized(fname)
)
)
)
for fname in self.photonames.itervalues()
]
def compose_photo(self):
"""Launch process to compose photo."""
Logger.info('PhotoboothApp: compose_print().')
cmd = (
'montage {photo1} {photo2} {photo3} {logo} '
'-mode concatenate '
'-tile 2 '
'-frame 10 '
'-mattecolor none '
'-background {background_color} '
'{dest}'.format(
photo1=self.resized(self.photonames[PhotoboothState.PHOTO1]),
photo2=self.resized(self.photonames[PhotoboothState.PHOTO2]),
photo3=self.resized(self.photonames[PhotoboothState.PHOTO3]),
logo=self.settings.logo,
background_color=self.settings.background_color,
dest=self.montage_image
)
)
self.processes = [subprocess.Popen(shlex.split(cmd))]
def composite_photo(self):
Logger.info('PhotoboothApp: composite_print().')
cmd = (
'composite '
'-gravity center '
'{montage} {canvas} {composite}'.format(
montage=self.montage_image,
canvas=self.canvas_image,
composite=self.print_image
)
)
self.processes = [subprocess.Popen(shlex.split(cmd))]
def print_photo(self):
"""Launch process to print photo."""
Logger.info('PhotoboothApp: print_photo().')
if self.settings.save:
dest = os.path.join(
self.settings.save,
'img_{}.jpg'.format(
datetime.datetime.now().strftime('%H%M%S')
)
)
Logger.info('Saving photo to %s.', dest)
shutil.copy(self.print_image, dest)
if self.settings.printer:
cmd = (
'lp '
'-d {printer} '
'{photo}'.format(
printer=self.settings.printer,
photo=self.print_image
)
)
Logger.info('Printing photo. %s', cmd)
self.processes = [subprocess.Popen(shlex.split(cmd))]
else:
self.processes = []
def print_complete(self):
"""Print photo process complete."""
Logger.info('PhotoboothApp: print_complete().')
self.sm.current = ScreenMgr.WAITING
self.state_machine.transition_to(PhotoboothState.WAITING)
def processing(self):
"""Check to see if we are still background processing anything."""
Logger.info('PhotoboothApp: processing().')
if any((process.poll() is None for process in self.processes)):
# Still processing.
return True
return False
@staticmethod
def resized(name):
base, ext = os.path.splitext(name)
return '{base}_resized{ext}'.format(base=base, ext=ext)