treenode_item_model.py
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00001 # Software License Agreement (BSD License)
00002 #
00003 # Copyright (c) 2012, Willow Garage, Inc.
00004 # All rights reserved.
00005 #
00006 # Redistribution and use in source and binary forms, with or without
00007 # modification, are permitted provided that the following conditions
00008 # are met:
00009 #
00010 #  * Redistributions of source code must retain the above copyright
00011 #    notice, this list of conditions and the following disclaimer.
00012 #  * Redistributions in binary form must reproduce the above
00013 #    copyright notice, this list of conditions and the following
00014 #    disclaimer in the documentation and/or other materials provided
00015 #    with the distribution.
00016 #  * Neither the name of Willow Garage, Inc. nor the names of its
00017 #    contributors may be used to endorse or promote products derived
00018 #    from this software without specific prior written permission.
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00020 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00021 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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00026 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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00033 # Author: Isaac Saito
00034 
00035 from __future__ import division
00036 
00037 from python_qt_binding.QtCore import Qt
00038 from python_qt_binding.QtGui import QStandardItemModel
00039 import rospy
00040 
00041 
00042 class TreenodeItemModel(QStandardItemModel):
00043     """
00044     This class is made only for this purpose; to hold QStandardItem instances
00045     associated with QModelIndex. QStandardItemModel has methods to return it
00046     by index called itemFromIndex, but in some cases the method doesn't work
00047     for unknown reasons. Ref. question asked:
00048     http://stackoverflow.com/questions/14646979/strange-index-values-from-qstandarditemmodel
00049 
00050     :author: Isaac Saito
00051     """
00052 
00053     def __init__(self, parent=None):
00054         super(TreenodeItemModel, self).__init__(parent)
00055         self._parent = parent
00056 
00057         self._indexes = {}  # { str : QPersistentModelIndex }
00058 
00059     def get_index_from_grn(self, grn):
00060         """
00061 
00062         :type grn: str
00063         :rtype: QPersistentModelIndex. None if the corresponding item isn't
00064                 found.
00065         """
00066         rospy.logdebug('get_index_from_grn all item={}'.format(
00067                                                                self._indexes))
00068         return self._indexes.get(grn)
00069 
00070     def set_item_from_index(self, grn, qpindex):
00071         """
00072         :type grn: str
00073         :type qpindex: QPersistentModelIndex
00074         """
00075         rospy.logdebug('set_item_from_index grn={} qpindex={}'.format(
00076                                                                grn, qpindex))
00077         self._indexes[grn] = qpindex


rqt_reconfigure
Author(s): Isaac Saito, Ze'ev Klapow
autogenerated on Mon Oct 6 2014 07:15:23