1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel IRC Team *
3 * devel@quassel-irc.org *
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. *
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. *
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 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include "messagemodel.h"
27 class ProcessBufferEvent : public QEvent {
29 inline ProcessBufferEvent() : QEvent(QEvent::User) {}
32 MessageModel::MessageModel(QObject *parent)
33 : QAbstractItemModel(parent)
35 QDateTime now = QDateTime::currentDateTime();
36 now.setTimeSpec(Qt::UTC);
37 _nextDayChange.setTimeSpec(Qt::UTC);
38 _nextDayChange.setTime_t(((now.toTime_t() / 86400) + 1) * 86400);
39 _nextDayChange.setTimeSpec(Qt::LocalTime);
40 _dayChangeTimer.setInterval(QDateTime::currentDateTime().secsTo(_nextDayChange) * 1000);
41 _dayChangeTimer.start();
42 connect(&_dayChangeTimer, SIGNAL(timeout()), this, SLOT(changeOfDay()));
45 QVariant MessageModel::data(const QModelIndex &index, int role) const {
46 int row = index.row(); int column = index.column();
47 if(row < 0 || row >= _messageList.count() || column < 0)
50 if(role == ColumnTypeRole)
53 return _messageList[row]->data(index.column(), role);
56 bool MessageModel::setData(const QModelIndex &index, const QVariant &value, int role) {
57 int row = index.row();
58 if(row < 0 || row >= _messageList.count())
61 if(_messageList[row]->setData(index.column(), value, role)) {
62 emit dataChanged(index, index);
71 bool MessageModel::insertMessage(const Message &msg, bool fakeMsg) {
72 MsgId id = msg.msgId();
73 int idx = indexForId(id);
74 if(!fakeMsg && idx < _messageList.count()) { // check for duplicate
75 if(_messageList[idx]->msgId() == id)
79 insertMessageGroup(QList<Message>() << msg);
83 void MessageModel::insertMessages(const QList<Message> &msglist) {
87 int processedMsgs = insertMessagesGracefully(msglist);
88 int remainingMsgs = msglist.count() - processedMsgs;
89 if(remainingMsgs > 0) {
90 if(msglist.first().msgId() < msglist.last().msgId()) {
92 _messageBuffer << msglist.mid(0, remainingMsgs);
94 _messageBuffer << msglist.mid(processedMsgs);
96 qSort(_messageBuffer);
97 QCoreApplication::postEvent(this, new ProcessBufferEvent());
101 void MessageModel::insertMessageGroup(const QList<Message> &msglist) {
102 // the msglist can be assumed to be non empty
103 int idx = indexForId(msglist.first().msgId());
105 int end = idx + msglist.count() - 1;
106 MessageModelItem *dayChangeItem = 0;
109 int prevIdx = idx - 1;
110 if(_messageList[prevIdx]->msgType() == Message::DayChange
111 && _messageList[prevIdx]->timeStamp() > msglist.value(0).timestamp()) {
112 beginRemoveRows(QModelIndex(), prevIdx, prevIdx);
113 MessageModelItem *oldItem = _messageList.takeAt(prevIdx);
114 if(msglist.last().timestamp() < oldItem->timeStamp()) {
115 // we have to reinsert it (with changed msgId -> thus we need to recreate it)
116 Message dayChangeMsg = Message::ChangeOfDay(oldItem->timeStamp());
117 dayChangeMsg.setMsgId(msglist.last().msgId());
118 dayChangeItem = createMessageModelItem(dayChangeMsg);
126 if(!dayChangeItem && idx < _messageList.count() && _messageList[idx]->msgType() != Message::DayChange) {
127 QDateTime nextTs = _messageList[idx]->timeStamp();
128 QDateTime prevTs = msglist.last().timestamp();
129 nextTs.setTimeSpec(Qt::UTC);
130 prevTs.setTimeSpec(Qt::UTC);
131 uint nextDay = nextTs.toTime_t() / 86400;
132 uint prevDay = prevTs.toTime_t() / 86400;
133 if(nextDay != prevDay) {
134 nextTs.setTime_t(nextDay * 86400);
135 nextTs.setTimeSpec(Qt::LocalTime);
136 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
137 dayChangeMsg.setMsgId(msglist.last().msgId());
138 dayChangeItem = createMessageModelItem(dayChangeMsg);
145 beginInsertRows(QModelIndex(), start, end);
146 foreach(Message msg, msglist) {
147 _messageList.insert(idx, createMessageModelItem(msg));
151 _messageList.insert(idx, dayChangeItem);
156 int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
157 bool inOrder = (msglist.first().msgId() < msglist.last().msgId());
158 // depending on the order we have to traverse from the front to the back or vice versa
160 QList<Message> grouplist;
164 bool fastForward = false;
165 QList<Message>::const_iterator iter;
167 iter = msglist.constEnd();
168 iter--; // this op is safe as we've allready passed an empty check
170 iter = msglist.constBegin();
173 int idx = indexForId((*iter).msgId());
174 if(idx >= 0 && !_messageList.isEmpty())
175 dupeId = _messageList[idx]->msgId();
177 // we always compare to the previous entry...
178 // if there isn't, we can fastforward to the top
180 id = _messageList[idx - 1]->msgId();
184 if((*iter).msgId() != dupeId)
193 while(iter != msglist.constBegin()) {
196 if(!fastForward && (*iter).msgId() < id)
199 if((*iter).msgId() != dupeId) {
200 if(!grouplist.isEmpty()) {
201 QDateTime nextTs = grouplist.value(0).timestamp();
202 QDateTime prevTs = (*iter).timestamp();
203 nextTs.setTimeSpec(Qt::UTC);
204 prevTs.setTimeSpec(Qt::UTC);
205 uint nextDay = nextTs.toTime_t() / 86400;
206 uint prevDay = prevTs.toTime_t() / 86400;
207 if(nextDay != prevDay) {
208 nextTs.setTime_t(nextDay * 86400);
209 nextTs.setTimeSpec(Qt::LocalTime);
210 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
211 dayChangeMsg.setMsgId((*iter).msgId());
212 grouplist.prepend(dayChangeMsg);
216 grouplist.prepend(*iter);
222 while(iter != msglist.constEnd()) {
223 if(!fastForward && (*iter).msgId() < id)
226 if((*iter).msgId() != dupeId) {
227 if(!grouplist.isEmpty()) {
228 QDateTime nextTs = grouplist.value(0).timestamp();
229 QDateTime prevTs = (*iter).timestamp();
230 nextTs.setTimeSpec(Qt::UTC);
231 prevTs.setTimeSpec(Qt::UTC);
232 uint nextDay = nextTs.toTime_t() / 86400;
233 uint prevDay = prevTs.toTime_t() / 86400;
234 if(nextDay != prevDay) {
235 nextTs.setTime_t(nextDay * 86400);
236 nextTs.setTimeSpec(Qt::LocalTime);
237 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
238 dayChangeMsg.setMsgId((*iter).msgId());
239 grouplist.prepend(dayChangeMsg);
243 grouplist.prepend(*iter);
252 insertMessageGroup(grouplist);
253 return grouplist.count() + dupeCount;
256 void MessageModel::customEvent(QEvent *event) {
257 if(event->type() != QEvent::User)
262 if(_messageBuffer.isEmpty())
265 int processedMsgs = insertMessagesGracefully(_messageBuffer);
266 int remainingMsgs = _messageBuffer.count() - processedMsgs;
268 QList<Message>::iterator removeStart = _messageBuffer.begin() + remainingMsgs;
269 QList<Message>::iterator removeEnd = _messageBuffer.end();
270 _messageBuffer.erase(removeStart, removeEnd);
272 if(!_messageBuffer.isEmpty())
273 QCoreApplication::postEvent(this, new ProcessBufferEvent());
276 void MessageModel::clear() {
277 beginRemoveRows(QModelIndex(), 0, rowCount() - 1);
278 qDeleteAll(_messageList);
279 _messageList.clear();
285 // returns index of msg with given Id or of the next message after that (i.e., the index where we'd insert this msg)
286 int MessageModel::indexForId(MsgId id) {
287 if(_messageList.isEmpty() || id <= _messageList.value(0)->msgId())
289 if(id > _messageList.last()->msgId())
290 return _messageList.count();
293 int start = 0; int end = _messageList.count()-1;
297 int pivot = (end + start) / 2;
298 if(id <= _messageList.value(pivot)->msgId()) end = pivot;
303 void MessageModel::changeOfDay() {
304 _dayChangeTimer.setInterval(86400000);
305 qDebug() << _nextDayChange;
306 if(!_messageList.isEmpty()) {
307 int idx = _messageList.count();
308 while(idx > 0 && _messageList[idx - 1]->timeStamp() > _nextDayChange) {
311 beginInsertRows(QModelIndex(), idx, idx);
312 Message dayChangeMsg = Message::ChangeOfDay(_nextDayChange);
313 dayChangeMsg.setMsgId(_messageList[idx - 1]->msgId());
314 _messageList.insert(idx, createMessageModelItem(dayChangeMsg));
317 _nextDayChange = _nextDayChange.addSecs(86400);
320 /**********************************************************************************/
322 MessageModelItem::MessageModelItem(const Message &msg) :
323 _timestamp(msg.timestamp()),
325 _bufferId(msg.bufferInfo().bufferId()),
331 QVariant MessageModelItem::data(int column, int role) const {
332 if(column < MessageModel::TimestampColumn || column > MessageModel::ContentsColumn)
336 case MessageModel::MsgIdRole: return QVariant::fromValue<MsgId>(_msgId);
337 case MessageModel::BufferIdRole: return QVariant::fromValue<BufferId>(_bufferId);
338 case MessageModel::TypeRole: return _type;
339 case MessageModel::FlagsRole: return (int)_flags;
340 case MessageModel::TimestampRole: return _timestamp;
341 default: return QVariant();
347 bool MessageModelItem::lessThan(const MessageModelItem *m1, const MessageModelItem *m2){
348 return (*m1) < (*m2);
351 bool MessageModelItem::operator<(const MessageModelItem &other) const {
352 return _msgId < other._msgId;
355 bool MessageModelItem::operator==(const MessageModelItem &other) const {
356 return _msgId == other._msgId;
359 bool MessageModelItem::operator>(const MessageModelItem &other) const {
360 return _msgId > other._msgId;