def parseArgs(argv):
"""Creates an argument parser which accepts options for off-screen
rendering. Uses the :mod:`fsleyes.parseargs` module to peform the
actual parsing.
:returns: An ``argparse.Namespace`` object containing the parsed
arguments.
"""
mainParser = parseargs.ArgumentParser(
add_help=False, formatter_class=parseargs.FSLeyesHelpFormatter)
mainParser.add_argument('-of', '--outfile', help='Output image file name'),
mainParser.add_argument('-c',
'--crop',
type=int,
metavar='BORDER',
help='Auto-crop image, leaving a '
'border on each side')
mainParser.add_argument('-sz',
'--size',
type=int,
nargs=2,
metavar=('W', 'H'),
help='Size in pixels (width, height)',
default=(800, 600))
name = 'render'
prolog = 'FSLeyes render version {}\n'.format(version.__version__)
optStr = '-of outfile'
description = textwrap.dedent("""\
FSLeyes screenshot generator.
Use the '--scene' option to choose between orthographic
('ortho'), lightbox ('lightbox'), or 3D ('3d') views.
""")
namespace = parseargs.parseArgs(
mainParser,
argv,
name,
prolog=prolog,
desc=description,
usageProlog=optStr,
argOpts=['-of', '--outfile', '-sz', '--size', '-c', '--crop'],
shortHelpExtra=['--outfile', '--size', '--crop'])
if namespace.outfile is None:
log.error('outfile is required')
mainParser.print_usage()
sys.exit(1)
namespace.outfile = op.abspath(namespace.outfile)
if namespace.scene not in ('ortho', 'lightbox', '3d'):
log.info('Unknown scene specified ("{}") - defaulting '
'to ortho'.format(namespace.scene))
namespace.scene = 'ortho'
return namespace
def applyCommandLineArgs(overlayList,
displayCtx,
argv,
panel=None,
applyOverlayArgs=True,
**kwargs):
"""Applies the command line arguments stored in ``argv`` to the
:class:`.CanvasPanel` ``panel``. If ``panel is None``, it is assumed
that ``argv`` only contains overlay arguments.
:arg overlayList: The :class:`.OverlayList`.
:arg displayCtx: The :class:`.DisplayContext`. If a ``panel`` is
provided, this should be the ``DisplayContext``
associated with that panel.
:arg argv: List of command line arguments to apply.
:arg panel: Optional :class:`.CanvasPanel` to apply the
arguments to.
:arg applyOverlayArgs: If ``False``, overlay arguments are not applied.
All other keyword arguments are passed to the
:func:`.parseargs.applyOverlayArgs` function.
"""
# We patch sys.stdout/stderr
# while parseargs.parseArgs is
# called so we can capture its
# output.
stdout = six.StringIO()
stderr = six.StringIO()
if argv[0] == 'fsleyes':
argv = argv[1:]
parser = argparse.ArgumentParser(add_help=False)
try:
real_stdout = sys.stdout
real_stderr = sys.stderr
sys.stdout = stdout
sys.stderr = stderr
namespace = parseargs.parseArgs(parser, argv, 'fsleyes')
except SystemExit as e:
raise ApplyCLIExit(e.code, stdout.getvalue(), stderr.getvalue())
finally:
sys.stdout = real_stdout
sys.stderr = real_stderr
if applyOverlayArgs:
parseargs.applyOverlayArgs(namespace, overlayList, displayCtx,
**kwargs)
if panel is not None:
sceneOpts = panel.sceneOpts
parseargs.applySceneArgs(namespace, overlayList, displayCtx, sceneOpts)
def parseArgs(argv):
"""Parses the given ``fsleyes`` command line arguments. See the
:mod:`.parseargs` module for details on the ``fsleyes`` command
line interface.
:arg argv: command line arguments for ``fsleyes``.
"""
import fsleyes.parseargs as parseargs
import fsleyes.layouts as layouts
import fsleyes.version as version
parser = parseargs.ArgumentParser(
add_help=False, formatter_class=parseargs.FSLeyesHelpFormatter)
serveraction = ft.partial(cliserver.CLIServerAction, allArgs=argv)
parser.add_argument('-r',
'--runscript',
metavar='SCRIPTFILE',
help='Run custom FSLeyes script')
parser.add_argument('-cs',
'--cliserver',
action=serveraction,
help='Pass all command-line arguments '
'to a single FSLeyes instance')
# We include the list of available
# layouts in the help description
allLayouts = list(layouts.BUILT_IN_LAYOUTS.keys()) + \
list(layouts.getAllLayouts())
name = 'fsleyes'
prolog = 'FSLeyes version {}\n'.format(version.__version__)
description = textwrap.dedent("""\
FSLeyes - the FSL image viewer.
Use the '--scene' option to load a saved layout ({layouts}).
If no '--scene' is specified, a default layout is shown or the
previous layout is restored. If a script is provided via
the '--runscript' argument, it is assumed that the script sets
up the scene.
""".format(layouts=', '.join(allLayouts)))
# Options for configuring the scene are
# managed by the parseargs module
return parseargs.parseArgs(parser,
argv,
name,
prolog=prolog,
desc=description,
argOpts=['-r', '--runscript'])
def applyCommandLineArgs(overlayList, displayCtx, argv, panel=None):
"""Applies the command line arguments stored in ``argv`` to the
:class:`.CanvasPanel` ``panel``. If ``panel is None``, it is assumed
that ``argv`` only contains overlay arguments.
"""
# We patch sys.stdout/stderr
# while parseargs.parseArgs is
# called so we can capture its
# output.
stdout = six.StringIO()
stderr = six.StringIO()
if argv[0] == 'fsleyes':
argv = argv[1:]
parser = argparse.ArgumentParser(add_help=False)
try:
real_stdout = sys.stdout
real_stderr = sys.stderr
sys.stdout = stdout
sys.stderr = stderr
namespace = parseargs.parseArgs(parser, argv, 'fsleyes')
except SystemExit as e:
raise ApplyCLIExit(e.code, stdout.getvalue(), stderr.getvalue())
finally:
sys.stdout = real_stdout
sys.stderr = real_stderr
parseargs.applyOverlayArgs(namespace, overlayList, displayCtx)
# No panel, no need to do anything else
if panel is None:
return
sceneOpts = panel.sceneOpts
parseargs.applySceneArgs(namespace, overlayList, displayCtx, sceneOpts)
def applyCommandLineArgs(overlayList,
displayCtx,
argv,
panel=None,
applyOverlayArgs=True,
baseDir=None,
**kwargs):
"""Applies the command line arguments stored in ``argv`` to the
:class:`.CanvasPanel` ``panel``. If ``panel is None``, it is assumed
that ``argv`` only contains overlay arguments.
:arg overlayList: The :class:`.OverlayList`.
:arg displayCtx: The :class:`.DisplayContext`. If a ``panel`` is
provided, this should be the ``DisplayContext``
associated with that panel.
:arg argv: List of command line arguments to apply.
:arg panel: Optional :class:`.CanvasPanel` to apply the
arguments to.
:arg applyOverlayArgs: If ``False``, overlay arguments are not applied.
:arg baseDir: Directory from which to interpret the arguments,
in case this is different from the current working
directory, and overlays have been specified with
relative paths.
All other keyword arguments are passed to the
:func:`.parseargs.applyOverlayArgs` function.
"""
# We patch sys.stdout/stderr
# while parseargs.parseArgs is
# called so we can capture its
# output.
stdout = six.StringIO()
stderr = six.StringIO()
if argv[0] == 'fsleyes':
argv = argv[1:]
parser = argparse.ArgumentParser(add_help=False)
try:
real_stdout = sys.stdout
real_stderr = sys.stderr
sys.stdout = stdout
sys.stderr = stderr
with chdir(baseDir):
namespace = parseargs.parseArgs(parser, argv, 'fsleyes')
except SystemExit as e:
raise ApplyCLIExit(e.code, stdout.getvalue(), stderr.getvalue())
finally:
sys.stdout = real_stdout
sys.stderr = real_stderr
if baseDir is not None:
for o in namespace.overlays:
if not op.isabs(o.overlay):
o.overlay = op.join(baseDir, o.overlay)
if applyOverlayArgs:
parseargs.applyOverlayArgs(namespace, overlayList, displayCtx,
**kwargs)
if panel is not None:
sceneOpts = panel.sceneOpts
parseargs.applySceneArgs(namespace, overlayList, displayCtx, sceneOpts)
