Source code for pyqso.compare

#!/usr/bin/env python3

#    Copyright (C) 2017 Christian Thomas Jacobs.

#    This file is part of PyQSO.

#    PyQSO 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 3 of the License, or
#    (at your option) any later version.
#
#    PyQSO 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 PyQSO.  If not, see <http://www.gnu.org/licenses/>.


[docs]def compare_date_and_time(model, row1, row2, user_data): """ Compare two rows (let's call them A and B) in a Gtk.ListStore, and sort by both date and time. :arg Gtk.TreeModel model: The model used to sort the log data. :arg Gtk.TreeIter row1: The pointer to row A. :arg Gtk.TreeIter row2: The pointer to row B. :arg user_data: The specific column from which to retrieve data for rows A and B. :returns: -1 if Row B's date/time is more recent than Row A's; 0 if both dates and times are the same; 1 if Row A's date/time is more recent than Row B's. :rtype: int """ date1 = model.get_value(row1, user_data[0]) date2 = model.get_value(row2, user_data[0]) time1 = model.get_value(row1, user_data[1]) time2 = model.get_value(row2, user_data[1]) if(date1 < date2): return -1 elif(date1 == date2): # If the dates are the same, then let's also sort by time. if(time1 > time2): return 1 elif(time1 == time2): return 0 else: return -1 else: return 1
[docs]def compare_default(model, row1, row2, user_data): """ The default sorting function for all Gtk.ListStore objects. :arg Gtk.TreeModel model: The model used to sort the log data. :arg Gtk.TreeIter row1: The pointer to row A. :arg Gtk.TreeIter row2: The pointer to row B. :arg user_data: The specific column from which to retrieve data for rows A and B. :returns: -1 if the value of Row A's column value is less than Row B's column value; 0 if both values are the same; 1 if Row A's column value is greater than Row B's column value. :rtype: int """ # Let's try to deal with numerical values, if possible. try: value1 = float(model.get_value(row1, user_data)) value2 = float(model.get_value(row2, user_data)) except ValueError: value1 = model.get_value(row1, user_data) value2 = model.get_value(row2, user_data) if(value1 < value2): return -1 elif(value1 == value2): return 0 else: return 1