src/common/buffersyncer.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2014 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #include "buffersyncer.h"
  22
  23 INIT_SYNCABLE_OBJECT(BufferSyncer)
  24 BufferSyncer::BufferSyncer(QObject *parent)
  25     : SyncableObject(parent)
  26 {
  27 }
  28
  29
  30 BufferSyncer::BufferSyncer(const QHash<BufferId, MsgId> &lastSeenMsg, const QHash<BufferId, MsgId> &markerLines, QObject *parent)
  31     : SyncableObject(parent),
  32     _lastSeenMsg(lastSeenMsg),
  33     _markerLines(markerLines)
  34 {
  35 }
  36
  37
  38 MsgId BufferSyncer::lastSeenMsg(BufferId buffer) const
  39 {
  40     return _lastSeenMsg.value(buffer, MsgId());
  41 }
  42
  43
  44 bool BufferSyncer::setLastSeenMsg(BufferId buffer, const MsgId &msgId)
  45 {
  46     if (!msgId.isValid())
  47         return false;
  48
  49     const MsgId oldLastSeenMsg = lastSeenMsg(buffer);
  50     if (!oldLastSeenMsg.isValid() || oldLastSeenMsg < msgId) {
  51         _lastSeenMsg[buffer] = msgId;
  52         SYNC(ARG(buffer), ARG(msgId))
  53         emit lastSeenMsgSet(buffer, msgId);
  54         return true;
  55     }
  56     return false;
  57 }
  58
  59
  60 MsgId BufferSyncer::markerLine(BufferId buffer) const
  61 {
  62     return _markerLines.value(buffer, MsgId());
  63 }
  64
  65
  66 bool BufferSyncer::setMarkerLine(BufferId buffer, const MsgId &msgId)
  67 {
  68     if (!msgId.isValid())
  69         return false;
  70
  71     if (_markerLines.value(buffer) == msgId)
  72         return false;
  73
  74     _markerLines[buffer] = msgId;
  75     SYNC(ARG(buffer), ARG(msgId))
  76     emit markerLineSet(buffer, msgId);
  77     return true;
  78 }
  79
  80
  81 QVariantList BufferSyncer::initLastSeenMsg() const
  82 {
  83     QVariantList list;
  84     QHash<BufferId, MsgId>::const_iterator iter = _lastSeenMsg.constBegin();
  85     while (iter != _lastSeenMsg.constEnd()) {
  86         list << QVariant::fromValue<BufferId>(iter.key())
  87              << QVariant::fromValue<MsgId>(iter.value());
  88         ++iter;
  89     }
  90     return list;
  91 }
  92
  93
  94 void BufferSyncer::initSetLastSeenMsg(const QVariantList &list)
  95 {
  96     _lastSeenMsg.clear();
  97     Q_ASSERT(list.count() % 2 == 0);
  98     for (int i = 0; i < list.count(); i += 2) {
  99         setLastSeenMsg(list.at(i).value<BufferId>(), list.at(i+1).value<MsgId>());
 100     }
 101 }
 102
 103
 104 QVariantList BufferSyncer::initMarkerLines() const
 105 {
 106     QVariantList list;
 107     QHash<BufferId, MsgId>::const_iterator iter = _markerLines.constBegin();
 108     while (iter != _markerLines.constEnd()) {
 109         list << QVariant::fromValue<BufferId>(iter.key())
 110              << QVariant::fromValue<MsgId>(iter.value());
 111         ++iter;
 112     }
 113     return list;
 114 }
 115
 116
 117 void BufferSyncer::initSetMarkerLines(const QVariantList &list)
 118 {
 119     _markerLines.clear();
 120     Q_ASSERT(list.count() % 2 == 0);
 121     for (int i = 0; i < list.count(); i += 2) {
 122         setMarkerLine(list.at(i).value<BufferId>(), list.at(i+1).value<MsgId>());
 123     }
 124 }
 125
 126
 127 void BufferSyncer::removeBuffer(BufferId buffer)
 128 {
 129     if (_lastSeenMsg.contains(buffer))
 130         _lastSeenMsg.remove(buffer);
 131     if (_markerLines.contains(buffer))
 132         _markerLines.remove(buffer);
 133     SYNC(ARG(buffer))
 134     emit bufferRemoved(buffer);
 135 }
 136
 137
 138 void BufferSyncer::mergeBuffersPermanently(BufferId buffer1, BufferId buffer2)
 139 {
 140     if (_lastSeenMsg.contains(buffer2))
 141         _lastSeenMsg.remove(buffer2);
 142     if (_markerLines.contains(buffer2))
 143         _markerLines.remove(buffer2);
 144     SYNC(ARG(buffer1), ARG(buffer2))
 145     emit buffersPermanentlyMerged(buffer1, buffer2);
 146 }