def convert_theme ( value, level = 3, cache = True ):
""" Converts a specified value to a Theme if possible.
"""
if not isinstance( value, basestring ):
return value
from theme import Theme
kind = value[:1]
if kind in '?~#$':
from facets.core.facet_db import facet_db
theme = facet_db.get( value, db = 'themes' )
if isinstance( theme, Theme ):
return theme
if (kind == '@') and (value.find( ':' ) >= 2):
try:
from facets.ui.image import ImageLibrary
info = ImageLibrary().image_info( value )
if info is not None:
return info.theme
except:
info = None
return Theme( image = image_for( value, level + 1, cache ) )
def get_permanent_connections ( cls, context ):
connections = cls.permanent_connections.get( context )
if connections is None:
connections = facet_db.get( context, [] )
cls.permanent_connections[ context ] = connections
return connections
def _selected_set ( self, record ):
""" Handles the user selecting a database record.
"""
if record is not None:
# Display the contents of the selected data base record:
id = record.id
payload = facet_db.get( id, Missing, db = self.database )
if payload is not Missing:
self.value = HasPayload( payload = payload,
payload_name = id.split( '.' )[-1],
payload_full_name = id )
else:
self.value = None
def feature_for ( cls, dock_control ):
""" Returns a feature object for use with the specified DockControl (or
None if the feature does not apply to the DockControl object).
"""
object = dock_control.object
if isinstance( object, HasFacets ):
names = object.facet_names( save_state = True )
if len( names ) > 0:
# Get the id to save the options under:
ids = object.facet_names( save_state_id = True )
id = ''
if len( ids ) == 1:
id = getattr( object, ids[0] )
if id == '':
id = 'unknown.plugins.%s.state' % dock_control.name
# Assign the current saved state (if any) to the object:
state = facet_db.get( id )
if state is not None:
for name, value in state.iteritems():
try:
setattr( object, name, value )
except:
pass
# Create and return the feature:
return cls(
dock_control = dock_control,
id = id ).set(
names = names
)
return None
#-- EOF ------------------------------------------------------------------------
def check_permanent_connections(cls):
if not cls.permanent_loaded:
cls.permanent_loaded = True
cls.permanent_connections = facet_db.get(PermanentConnections, [])
