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immutable_loader_info_handler.py
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2 # This file is part of the OpenStructure project <www.openstructure.org>
3 #
4 # Copyright (C) 2008-2011 by the OpenStructure authors
5 #
6 # This library is free software; you can redistribute it and/or modify it under
7 # the terms of the GNU Lesser General Public License as published by the Free
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19 # -*- coding: utf-8 -*-
20 
21 from ost import gui
22 from ost import gfx
23 from ost import info
24 from PyQt4 import QtCore, QtGui
25 
26 from file_loader import GenericLoader
27 
29  LOADERS_GROUP_NAME = "GenericLoaders"
30  LOADER_GROUP_NAME = "GenericLoader"
31  NAME_ATTRIBUTE_NAME = "Name"
32 
33  def __init__(self, file_name):
34  self.file_name_ = file_name
35  self.handle_ = info.LoadOrCreateInfo(self.file_name_)
36 
37  self.root_ = self.handle_.Root()
38 
39  self.loaders_ = self.root_.RetrieveGroup(ImmutableLoaderInfoHandler.LOADERS_GROUP_NAME)
40 
41 
42  def GetLoader(self, name):
43  group_list = self.loaders_.GetGroups(ImmutableLoaderInfoHandler.LOADER_GROUP_NAME)
44  for group in group_list:
45  if group.HasAttribute(ImmutableLoaderInfoHandler.NAME_ATTRIBUTE_NAME):
46  groupname = group.GetAttribute(ImmutableLoaderInfoHandler.NAME_ATTRIBUTE_NAME)
47  if name == groupname:
48  loader = GenericLoader.FromInfo(group)
49  return loader
50  return None
51 
52  def GetLoaders(self):
53  group_list = self.loaders_.GetGroups(ImmutableLoaderInfoHandler.LOADER_GROUP_NAME)
54  loaders = dict()
55 
56  for group in group_list:
57  if group.HasAttribute(ImmutableLoaderInfoHandler.NAME_ATTRIBUTE_NAME):
58  loader = GenericLoader.FromInfo(group)
59  loaders[group.GetAttribute(self.NAME_ATTRIBUTE_NAME)] = loader
60  return loaders