def find_toolkit(entry_point, toolkits=None, priorities=default_priorities):
""" Find a toolkit that works.
If ETSConfig is set, then attempt to find a matching toolkit. Otherwise
try every plugin for the entry_point until one works. The ordering of the
plugins is supplied via the priorities function which should be suitable
for use as a sorting key function. If all else fails, explicitly try to
load the "null" toolkit backend. If that fails, give up.
Parameters
----------
entry_point : str
The name of the entry point that holds our toolkits.
toolkits : collection of strings
Only consider toolkits which match the given strings, ignore other
ones.
priorities : callable
A callable function that returns an priority for each plugin.
Returns
-------
toolkit : Toolkit instance
A callable object that implements the Toolkit interface.
Raises
------
TraitError
If no working toolkit is found.
RuntimeError
If no ETSConfig.toolkit is set but the toolkit cannot be loaded for
some reason.
"""
if ETSConfig.toolkit:
return import_toolkit(ETSConfig.toolkit, entry_point)
entry_points = [
plugin for plugin in importlib_metadata.entry_points()[entry_point]
if toolkits is None or plugin.name in toolkits
]
for plugin in sorted(entry_points, key=priorities):
try:
with ETSConfig.provisional_toolkit(plugin.name):
toolkit = plugin.load()
return toolkit
except (ImportError, AttributeError, RuntimeError) as exc:
msg = "Could not load %s plugin %r from %r"
module_name = plugin.value.split(":")[0]
logger.info(msg, entry_point, plugin.name, module_name)
logger.debug(exc, exc_info=True)
# if all else fails, try to import the null toolkit.
with ETSConfig.provisional_toolkit("null"):
return import_toolkit("null", entry_point)
raise TraitError("Could not import any {} toolkit.".format(entry_point))
def find_toolkit(entry_point, toolkits=None, priorities=default_priorities):
""" Find a toolkit that works.
If ETSConfig is set, then attempt to find a matching toolkit. Otherwise
try every plugin for the entry_point until one works. The ordering of the
plugins is supplied via the priorities function which should be suitable
for use as a sorting key function. If all else fails, explicitly try to
load the "null" toolkit backend. If that fails, give up.
Parameters
----------
entry_point : str
The name of the entry point that holds our toolkits.
toolkits : collection of strings
Only consider toolkits which match the given strings, ignore other
ones.
priorities : callable
A callable function that returns an priority for each plugin.
Returns
-------
toolkit : Toolkit instance
A callable object that implements the Toolkit interface.
Raises
------
TraitError
If no working toolkit is found.
RuntimeError
If no ETSConfig.toolkit is set but the toolkit cannot be loaded for
some reason.
"""
if ETSConfig.toolkit:
return import_toolkit(ETSConfig.toolkit, entry_point)
entry_points = [
plugin for plugin in pkg_resources.iter_entry_points(entry_point)
if toolkits is None or plugin.name in toolkits
]
for plugin in sorted(entry_points, key=priorities):
try:
with ETSConfig.provisional_toolkit(plugin.name):
toolkit = plugin.load()
return toolkit
except (ImportError, AttributeError, RuntimeError) as exc:
msg = "Could not load %s plugin %r from %r"
logger.info(msg, entry_point, plugin.name, plugin.module_name)
logger.debug(exc, exc_info=True)
# if all else fails, try to import the null toolkit.
with ETSConfig.provisional_toolkit('null'):
return import_toolkit('null', entry_point)
raise TraitError("Could not import any {} toolkit.".format(entry_point))
def main():
usage = 'usage: %prog [options] enaml_file'
parser = optparse.OptionParser(usage=usage, description=__doc__)
parser.add_option('-c', '--component', default='Main',
help='The component to view')
parser.add_option('-t', '--toolkit', default='default',
choices=['default', 'wx', 'qt'],
help='The toolkit backend to use')
options, args = parser.parse_args()
if len(args) == 0:
print 'No .enaml file specified'
sys.exit()
elif len(args) > 1:
print 'Too many files specified'
sys.exit()
else:
enaml_file = args[0]
pg = PersistGeometry(datadir=ETSConfig.get_application_home(create=True))
with toolkits[options.toolkit]():
try:
factory, module = read_component(enaml_file, requested=options.component)
except NameError, e:
raise SystemExit('Error: ' + str(e))
with imports():
from enaml_debug.debug_ui import DebugLayoutUI, get_geometry
window = DebugLayoutUI(root=factory().central_widget, persist_geometry=pg)
window.show()
pg.save(get_geometry(window))
def _load_preferences(self):
"""Load the default preferences."""
# Save current application_home.
app_home = ETSConfig.get_application_home()
# Set it to where the mayavi preferences are temporarily.
path = join(ETSConfig.get_application_data(), ID)
ETSConfig.application_home = path
try:
for pkg in ('mayavi.preferences', 'tvtk.plugins.scene'):
pref = 'preferences.ini'
pref_file = pkg_resources.resource_stream(pkg, pref)
preferences = self.preferences
default = preferences.node('default/')
default.load(pref_file)
pref_file.close()
finally:
# Set back the application home.
ETSConfig.application_home = app_home
def _load_preferences(self):
"""Load the default preferences."""
# Save current application_home.
app_home = ETSConfig.get_application_home()
# Set it to where the mayavi preferences are temporarily.
path = join(ETSConfig.get_application_data(), ID)
ETSConfig.application_home = path
try:
for pkg in ('mayavi.preferences',
'tvtk.plugins.scene'):
pref = 'preferences.ini'
pref_file = pkg_resources.resource_stream(pkg, pref)
preferences = self.preferences
default = preferences.node('default/')
default.load(pref_file)
pref_file.close()
finally:
# Set back the application home.
ETSConfig.application_home = app_home
def _load_preferences(self):
"""Load the default preferences."""
# print 'debugging mayavi.preferences.preferences_manager frozen with bbfreeze.sh start'
# import sys
# print 'sys.executable', sys.executable
# print 'sys.path', sys.path
# Save current application_home.
app_home = ETSConfig.get_application_home()
# print 'app_home', app_home
# Set it to where the mayavi preferences are temporarily.
# print 'ID', ID
path = join(ETSConfig.get_application_data(), ID)
# print 'path', path
ETSConfig.application_home = path
try:
for pkg in ('mayavi.preferences',
'tvtk.plugins.scene'):
pref = 'preferences.ini'
# print 'pkg', pkg
# print 'pref', pref
# pref_file = pkg_resources.resource_stream(pkg, pref)
import sys
if getattr(sys, "frozen", False):
# print join(sys.path[1], pkg.replace('.', '/'), pref)
pref_file = open(join(sys.path[1], pkg.replace('.', '/'), pref), 'rb')
else:
pref_file = pkg_resources.resource_stream(pkg, pref)
preferences = self.preferences
default = preferences.node('default/')
default.load(pref_file)
pref_file.close()
finally:
# Set back the application home.
ETSConfig.application_home = app_home
# Remove the option:
del sys.argv[ opt_idx: opt_idx + 1 ]
else:
opt_toolkit = None
if self._toolkit is not None:
toolkit = self._toolkit
elif opt_toolkit is not None:
toolkit = opt_toolkit
else:
toolkit = os.environ.get( 'ETS_TOOLKIT', '' )
return toolkit
ETSConfig = ETSConfig()
#-------------------------------------------------------------------------------
# Provide Python 2.3+ compatible definitions (if necessary):
#-------------------------------------------------------------------------------
try:
from types import BooleanType
except ImportError:
BooleanType = IntType
def _enumerate ( seq ):
for i in xrange( len( seq) ):
yield i, seq[i]
try:
enumerate = enumerate
def _id_default(self):
""" Use the application's directory as the id """
from traits.etsconfig.api import ETSConfig
return ETSConfig._get_application_dirname()
from traits.etsconfig.api import ETSConfig
from apptools.preferences.api import ScopedPreferences, set_default_preferences, get_default_preferences
import os
import sys
ETSConfig.company = 'Infobiotics'
preferences = ScopedPreferences(filename=os.path.join(ETSConfig.get_application_data(create=True), 'preferences.ini'))
set_default_preferences(preferences) # allows use of Preferences, PreferencesHelper and bind_preference without explicitly passing preferences
assert preferences == get_default_preferences()
from infobiotics.mcss.mcss_preferences import PREFERENCES_PATH as MCSS_PREFERENCES_PATH
from infobiotics.mcsscmaes.mcsscmaes_preferences import PREFERENCES_PATH as MCSSCMAES_PREFERENCES_PATH
from infobiotics.pmodelchecker.pmodelchecker_preferences import PREFERENCES_PATH as PMODELCHECKER_PREFERENCES_PATH
from infobiotics.pmodelchecker.prism.prism_preferences import PREFERENCES_PATH as PRISM_PREFERENCES_PATH
from infobiotics.pmodelchecker.mc2.mc2_preferences import PREFERENCES_PATH as MC2_PREFERENCES_PATH
from infobiotics.pmodelchecker.mc2.mc2_preferences import MC2_MCSS_PREFERENCES_PATH
from infobiotics.poptimizer.poptimizer_preferences import PREFERENCES_PATH as POPTIMIZER_PREFERENCES_PATH
DEFAULT_MCSS_EXECUTABLE = 'default/'+MCSS_PREFERENCES_PATH+'.executable'
DEFAULT_MCSSCMAES_EXECUTABLE = 'default/'+MCSSCMAES_PREFERENCES_PATH+'.executable'
DEFAULT_PMODELCHECKER_EXECUTABLE = 'default/'+PMODELCHECKER_PREFERENCES_PATH+'.executable'
DEFAULT_PRISM_EXECUTABLE = 'default/'+PRISM_PREFERENCES_PATH+'.executable'
DEFAULT_MC2_EXECUTABLE = 'default/'+MC2_PREFERENCES_PATH+'.executable'
DEFAULT_MC2_MCSS_EXECUTABLE = 'default/'+MC2_MCSS_PREFERENCES_PATH+'.executable'
DEFAULT_POPTIMIZER_EXECUTABLE = 'default/'+POPTIMIZER_PREFERENCES_PATH+'.executable'
if sys.platform.startswith('win'):
preferences.set(DEFAULT_MCSS_EXECUTABLE, 'mcss.exe'),
preferences.set(DEFAULT_MCSSCMAES_EXECUTABLE, 'mcss-cmaes.exe'),
preferences.set(DEFAULT_PMODELCHECKER_EXECUTABLE, 'pmodelchecker.exe'),