def get_info_libtiff(filename):
"""Get tiff info of a file with ``tiffinfo``, which needs to be
installed on your system.
:param filename: name of tiff image file
:type filename: string
:returns: info about the file
:rtype: dict
"""
result = {}
def set(key, value):
key = 'libtiff.' + key.lower().replace(' ', '.')
if not (key in result):
result[key] = value
source, err = system.shell((TIFFINFO, filename))
for match in RE_TIFF_FIELD.finditer(source):
value = match.group(2)
again = RE_TIFF_FIELD_IMAGE.search(value)
if again:
set('Image %s' % again.group(1), again.group(2))
set(match.group(1), value[:again.start()])
else:
set(match.group(1), value)
if not result:
raise IOError('Not a TIFF or MDI file, bad magic number.')
result['compression'] = \
TIFF_COMPRESSION[result['libtiff.compression.scheme']]
return result
def open_image_with_command(filename, command, app, extension="png", temp_ext=None):
"""Open with an external command (such as Inkscape, dcraw, imagemagick).
:param filename: filename, from which a temporary filename will be derived
:type filename: string
:param command: conversion command with optional temp file interpolation
:type command: string
:param extension: file type
:type extension: string
:param temp_ext:
if a temp file can not be specified to the command (eg dcraw),
give the file extension of the command output
:type temp_ext: string
"""
temp = None
temp_file = None
if temp_ext:
# eg dcraw
temp_file = os.path.splitext(filename)[0] + "." + temp_ext
else:
# imagemagick, ...
if not extension.startswith("."):
extension = "." + extension
temp = system.TempFile(extension)
temp_file = temp.path
command.append(temp_file)
try:
output, error = system.shell(command)
if os.path.exists(temp_file):
image = Image.open(temp_file)
image.load() # otherwise temp file can't be deleted
image.info["Convertor"] = app
return image
finally:
if temp:
temp.close(force_remove=False)
elif temp_ext and os.path.exists(temp_file):
os.remove(temp_file)
message = _("Could not open image with %s.") % app + "\n\n%s: %s\n\n%s: %s\n\n%s: %s" % (
_("Command"),
command,
_("Output"),
output,
_("Error"),
error,
)
raise IOError(message)
def open_image_with_command(filename,
command,
app,
extension='png',
temp_ext=None):
"""Open with an external command (such as Inkscape, dcraw, imagemagick).
:param filename: filename, from which a temporary filename will be derived
:type filename: string
:param command: conversion command with optional temp file interpolation
:type command: string
:param extension: file type
:type extension: string
:param temp_ext:
if a temp file can not be specified to the command (eg dcraw),
give the file extension of the command output
:type temp_ext: string
"""
temp = None
temp_file = None
if temp_ext:
# eg dcraw
temp_file = os.path.splitext(filename)[0] + '.' + temp_ext
else:
# imagemagick, ...
if not extension.startswith('.'):
extension = '.' + extension
temp = system.TempFile(extension)
temp_file = temp.path
command.append(temp_file)
try:
output, error = system.shell(command)
if os.path.exists(temp_file):
image = Image.open(temp_file)
image.load() # otherwise temp file can't be deleted
image.info['Convertor'] = app
return image
finally:
if temp:
temp.close(force_remove=False)
elif temp_ext and os.path.exists(temp_file):
os.remove(temp_file)
message = _('Could not open image with %s.') % app + \
'\n\n%s: %s\n\n%s: %s\n\n%s: %s' % \
(_('Command'), command, _('Output'), output, _('Error'), error)
raise IOError(message)
def save_libtiff(image, filename, compression=None, **options):
"""Saves a tiff compressed file with tiffcp.
:param image: PIL image
:type image: Image.Image
:param filename: name of tiff image file
:type filename: string
:param compression: g3, g4, jpeg, lzw, tiff_lzw
:type compression: string
:returns: log message
:rtype: string
"""
if compression in ['raw', 'none']:
image.save(filename, 'tiff', **options)
return ''
if compression is None:
compression = image.info['compression']
elif compression in ['g3', 'g4'] and image.mode != '1':
image = image.convert('1')
if compression == 'jpeg':
option = ['-r', '16']
if image.mode == 'RGBA':
image = image.convert('RGB')
else:
option = []
if compression == 'tiff_lzw':
compression = 'lzw'
temp = system.TempFile()
try:
image.save(temp.path, 'tiff', **options)
input = [TIFFCP, temp.path, '-c', compression]
if option:
input.extend(option)
input.append(filename)
out, err = system.shell(input)
finally:
temp.close()
if out or err:
return 'Subprocess "tiffcp"\ninput:\n%s\noutput:\n%s%s\n'\
% (input, out, err)
return ''
def save_libtiff(image, filename, compression=None, **options):
"""Saves a tiff compressed file with tiffcp.
:param image: PIL image
:type image: Image.Image
:param filename: name of tiff image file
:type filename: string
:param compression: g3, g4, jpeg, lzw, tiff_lzw
:type compression: string
:returns: log message
:rtype: string
"""
if compression in ["raw", "none"]:
image.save(filename, "tiff", **options)
return ""
if compression is None:
compression = image.info["compression"]
elif compression in ["g3", "g4"] and image.mode != "1":
image = image.convert("1")
if compression == "jpeg":
option = ["-r", "16"]
if image.mode == "RGBA":
image = image.convert("RGB")
else:
option = []
if compression == "tiff_lzw":
compression = "lzw"
temp = system.TempFile()
try:
image.save(temp.path, "tiff", **options)
input = [TIFFCP, temp.path, "-c", compression]
if option:
input.extend(option)
input.append(filename)
out, err = system.shell(input)
finally:
temp.close()
if out or err:
return 'Subprocess "tiffcp"\ninput:\n%s\noutput:\n%s%s\n' % (input, out, err)
return ""
import system system.shell(True)
#Increment counter
counter+=1
#time.sleep(0.01)
prev = current
display.orientation(90)
drawNickname()
# Terminal menu
import term, term_menu
cfg_term_menu = machine.nvs_get_u8('splash', 'term_menu') # Show a menu on the serial port instead of a prompt
if cfg_term_menu == None:
cfg_term_menu = True # If not set the menu is shown
if cfg_term_menu:
umenu = term_menu.UartMenu(None, None, False)
umenu.main()
pass
else:
print("Welcome!")
print("The homescreen and it's services are currently being run.")
print("Press CTRL+C to reboot directly to a Python prompt.")
wait = True
while wait:
c = machine.stdin_get(1,1)
if c == "\x03" or c == "\x04": # CTRL+C or CTRL+D
wait = False
stopThreads = True
system.shell()
def _start_shell():
print("Type 'exit' to continue with the installation, 'exit 1' to abort")
try:
system.shell()
except exceptions.CalledProcessError:
raise exceptions.AbortOperation
