127 lines
3.7 KiB
Python
127 lines
3.7 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2000-2007 Donald N. Allingham
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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"""
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NoteBase class for GRAMPS
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"""
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__revision__ = "$Revision$"
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#-------------------------------------------------------------------------
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#
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# NoteBase class
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#
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#-------------------------------------------------------------------------
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class NoteBase:
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"""
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Base class for storing notes.
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Starting in 2.3 branch, the objects may have multiple notes.
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Internally, this class maintains a list of Note handles,
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as a note_list attribute of the NoteBase object.
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"""
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def __init__(self, source=None):
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"""
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Create a new NoteBase, copying from source if not None
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@param source: Object used to initialize the new object
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@type source: NoteBase
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"""
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if source:
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self.note_list = [handle for handle in source.note_list]
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else:
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self.note_list = []
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def serialize(self):
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"""
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Converts the object to a serialized tuple of data
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"""
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return self.note_list
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def unserialize(self, data):
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"""
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Converts a serialized tuple of data to an object
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"""
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self.note_list = [handle for handle in data]
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def add_note(self,handle):
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"""
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Adds the L{Note} handle to the list of note handles.
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@param handle: L{Note} handle to add the list of notes
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@type handle: str
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@return: True if handle was added, False if it already was in the list
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@rtype: bool
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"""
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if handle in self.note_list:
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return False
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else:
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self.note_list.append(handle)
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return True
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def remove_note(self,handle):
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"""
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Removes the specified handle from the list of note handles.
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@param handle: L{Note} handle to remove from the list of notes
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@type handle: str
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@return: True if handle was removed, False if it was not in the list
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@rtype: bool
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"""
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if handle in self.note_list:
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self.note_list.remove(handle)
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return True
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else:
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return False
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def get_note_list(self):
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"""
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Returns the list of L{Note} handles associated with the object
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@return: The list of L{Note} handles
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@rtype: list
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"""
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return self.note_list
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def set_note_list(self,note_list):
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"""
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Assign the passed list to be object's list of L{Note} handles.
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@param note_list: List of L{Note} handles to be set on the object
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@type note_list: list
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"""
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self.note_list = note_list
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def get_referenced_note_handles(self):
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"""
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Returns the list of (classname,handle) tuples for all referenced notes.
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This method should be used to get the L{Note} portion of the list
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by objects that store note lists.
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@return: List of (classname,handle) tuples for referenced objects.
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@rtype: list
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"""
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return [('Note',handle) for handle in self.note_list]
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