mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-11 02:30:30 +00:00
79 lines
2.3 KiB
Python
79 lines
2.3 KiB
Python
|
""":mod:`wand.display` --- Displaying images
|
||
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
The :func:`display()` functions shows you the image. It is useful for
|
||
|
|
debugging.
|
||
|
|
|
||
|
|
If you are in Mac, the image will be opened by your default image application
|
||
|
|
(:program:`Preview.app` usually).
|
||
|
|
|
||
|
|
If you are in Windows, the image will be opened by :program:`imdisplay.exe`,
|
||
|
|
or your default image application (:program:`Windows Photo Viewer` usually)
|
||
|
|
if :program:`imdisplay.exe` is unavailable.
|
||
|
|
|
||
|
|
You can use it from CLI also. Execute :mod:`wand.display` module through
|
||
|
|
:option:`python -m` option:
|
||
|
|
|
||
|
|
.. sourcecode:: console
|
||
|
|
|
||
|
|
$ python -m wand.display wandtests/assets/mona-lisa.jpg
|
||
|
|
|
||
|
|
.. versionadded:: 0.1.9
|
||
|
|
|
||
|
|
"""
|
||
|
|
import ctypes
|
||
|
|
import os
|
||
|
|
import platform
|
||
|
|
import sys
|
||
|
|
import tempfile
|
||
|
|
|
||
|
|
from .image import Image
|
||
|
|
from .api import library
|
||
|
|
from .exceptions import BlobError, DelegateError
|
||
|
|
|
||
|
|
__all__ = 'display',
|
||
|
|
|
||
|
|
|
||
|
|
def display(image, server_name=':0'):
|
||
|
|
"""Displays the passed ``image``.
|
||
|
|
|
||
|
|
:param image: an image to display
|
||
|
|
:type image: :class:`~wand.image.Image`
|
||
|
|
:param server_name: X11 server name to use. it is ignored and not used
|
||
|
|
for Mac. default is ``':0'``
|
||
|
|
:type server_name: :class:`str`
|
||
|
|
|
||
|
|
"""
|
||
|
|
if not isinstance(image, Image):
|
||
|
|
raise TypeError('image must be a wand.image.Image instance, not ' +
|
||
|
|
repr(image))
|
||
|
|
system = platform.system()
|
||
|
|
if system == 'Windows':
|
||
|
|
try:
|
||
|
|
image.save(filename='win:.')
|
||
|
|
except DelegateError:
|
||
|
|
pass
|
||
|
|
else:
|
||
|
|
return
|
||
|
|
if system in ('Windows', 'Darwin'):
|
||
|
|
ext = '.' + image.format.lower()
|
||
|
|
path = tempfile.mktemp(suffix=ext)
|
||
|
|
image.save(filename=path)
|
||
|
|
os.system(('start ' if system == 'Windows' else 'open ') + path)
|
||
|
|
else:
|
||
|
|
library.MagickDisplayImage.argtypes = [ctypes.c_void_p,
|
||
|
|
ctypes.c_char_p]
|
||
|
|
library.MagickDisplayImage(image.wand, str(server_name).encode())
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
if len(sys.argv) < 2:
|
||
|
|
print>>sys.stderr, 'usage: python -m wand.display FILE'
|
||
|
|
raise SystemExit
|
||
|
|
path = sys.argv[1]
|
||
|
|
try:
|
||
|
|
with Image(filename=path) as image:
|
||
|
|
display(image)
|
||
|
|
except BlobError:
|
||
|
|
print>>sys.stderr, 'cannot read the file', path
|