root/gaphor/tags/gaphor-0.3.0/gaphor/diagram/operation.py

# vim:sw=4:et
"""Operation item.
"""

import gobject
import diacanvas
from gaphor.diagram import initialize_item
from feature import FeatureItem

# TODO: handle Parameter's

class OperationItem(FeatureItem):

    popup_menu = FeatureItem.popup_menu + (
        'EditItem',
        'DeleteOperation',
        'separator',
        'CreateOperation'
    )

    def __init__(self, id=None):
        FeatureItem.__init__(self, id)

    def on_subject_notify(self, pspec, notifiers=()):
        FeatureItem.on_subject_notify(self, pspec, ('name', 'visibility')
                                                   + notifiers)
        # TODO: Handle subject.returnResult[*] and subject.formalParameter[*]

    def on_subject_notify__name(self, subject, pspec):
        self._expression.set_text(self.subject.render())
        self.request_update()

    on_subject_notify__visibility = on_subject_notify__name
    on_subject_notify__taggedValue_value = on_subject_notify__name

initialize_item(OperationItem)