kaddressbook/contactsorter.cpp

   1 /*
   2   This file is part of KAddressBook.
   3
   4   Copyright (c) 2009 Tobias Koenig <tokoe@kde.org>
   5
   6   This program is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation; either version 2 of the License, or
   9   (at your option) any later version.
  10
  11   This program is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with this program; if not, write to the Free Software
  18   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19 */
  20
  21 #include "contactsorter.h"
  22
  23 #include <KContacts/Addressee>
  24
  25 class ContactSortHelper
  26 {
  27 public:
  28     ContactSortHelper(ContactFields::Field field, Qt::SortOrder sortOrder)
  29         : mSortField(field), mSortOrder(sortOrder)
  30     {
  31     }
  32
  33     inline bool operator()(const KContacts::Addressee &contact,
  34                            const KContacts::Addressee &otherContact) const
  35     {
  36         int result =
  37             QString::localeAwareCompare(
  38                 ContactFields::value(mSortField, contact),
  39                 ContactFields::value(mSortField, otherContact));
  40
  41         if (result == 0) {
  42             int givenNameResult =
  43                 QString::localeAwareCompare(
  44                     ContactFields::value(ContactFields::GivenName, contact),
  45                     ContactFields::value(ContactFields::GivenName, otherContact));
  46
  47             if (givenNameResult == 0) {
  48                 int familyNameResult =
  49                     QString::localeAwareCompare(
  50                         ContactFields::value(ContactFields::FamilyName, contact),
  51                         ContactFields::value(ContactFields::FamilyName, otherContact));
  52
  53                 if (familyNameResult == 0) {
  54                     result =
  55                         QString::localeAwareCompare(
  56                             ContactFields::value(ContactFields::FormattedName, contact),
  57                             ContactFields::value(ContactFields::FormattedName, otherContact));
  58                 } else {
  59                     result = familyNameResult;
  60                 }
  61             } else {
  62                 result = givenNameResult;
  63             }
  64         }
  65
  66         bool lesser = result < 0;
  67
  68         if (mSortOrder == Qt::DescendingOrder) {
  69             lesser = !lesser;
  70         }
  71
  72         return lesser;
  73     }
  74
  75 private:
  76     const ContactFields::Field mSortField;
  77     const Qt::SortOrder mSortOrder;
  78 };
  79
  80 ContactSorter::ContactSorter(ContactFields::Field field, Qt::SortOrder sortOrder)
  81     : mSortField(field), mSortOrder(sortOrder)
  82 {
  83 }
  84
  85 void ContactSorter::sort(KContacts::Addressee::List &contacts) const
  86 {
  87     qStableSort(contacts.begin(), contacts.end(), ContactSortHelper(mSortField, mSortOrder));
  88 }