#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2005  Donald N. Allingham
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

# $Id$

"""
Media Reference class for GRAMPS
"""

#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from _PrivateSourceNote import PrivateSourceNote
from _AttributeBase import AttributeBase

#-------------------------------------------------------------------------
#
# MediaObject References for Person/Place/Source
#
#-------------------------------------------------------------------------
class MediaRef(PrivateSourceNote,AttributeBase):
    """Media reference class"""
    def __init__(self,source=None):

        PrivateSourceNote.__init__(self,source)
        AttributeBase.__init__(self,source)

        if source:
            self.ref = source.ref
            self.rect = source.rect
        else:
            self.ref = None
            self.rect = None

    def get_text_data_child_list(self):
        """
        Returns the list of child objects that may carry textual data.

        @return: Returns the list of child objects that may carry textual data.
        @rtype: list
        """
        check_list = self.attribute_list + self.source_list
        if self.note:
            check_list.append(self.note)
        return check_list

    def get_sourcref_child_list(self):
        """
        Returns the list of child secondary objects that may refer sources.

        @return: Returns the list of child secondary child objects that may refer sources.
        @rtype: list
        """
        return self.attribute_list

    def get_referenced_handles(self):
        """
        Returns the list of (classname,handle) tuples for all directly
        referenced primary objects.
        
        @return: Returns the list of (classname,handle) tuples for referenced objects.
        @rtype: list
        """
        if self.ref:
            return [('MediaObject',self.ref)]
        else:
            return []

    def get_handle_referents(self):
        """
        Returns the list of child objects which may, directly or through
        their children, reference primary objects..
        
        @return: Returns the list of objects refereincing primary objects.
        @rtype: list
        """
        return self.attribute_list + self.source_list

    def set_rectangle(self,coord):
        """Sets subection of an image"""
        self.rect = coord

    def get_rectangle(self):
        """Returns the subsection of an image"""
        return self.rect

    def set_reference_handle(self,obj_id):
        self.ref = obj_id

    def get_reference_handle(self):
        return self.ref