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 dayChangeItem = oldItem;
123 if(!dayChangeItem && idx < _messageList.count() && _messageList[idx]->msgType() != Message::DayChange) {
124 QDateTime nextTs = _messageList[idx]->timeStamp();
125 QDateTime prevTs = msglist.last().timestamp();
126 nextTs.setTimeSpec(Qt::UTC);
127 prevTs.setTimeSpec(Qt::UTC);
128 uint nextDay = nextTs.toTime_t() / 86400;
129 uint prevDay = prevTs.toTime_t() / 86400;
130 if(nextDay != prevDay) {
131 nextTs.setTime_t(nextDay * 86400);
132 nextTs.setTimeSpec(Qt::LocalTime);
133 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
134 dayChangeMsg.setMsgId(msglist.last().msgId());
135 dayChangeItem = createMessageModelItem(dayChangeMsg);
142 beginInsertRows(QModelIndex(), start, end);
143 foreach(Message msg, msglist) {
144 _messageList.insert(idx, createMessageModelItem(msg));
148 _messageList.insert(idx, dayChangeItem);
153 int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
154 bool inOrder = (msglist.first().msgId() < msglist.last().msgId());
155 // depending on the order we have to traverse from the front to the back or vice versa
157 QList<Message> grouplist;
161 bool fastForward = false;
162 QList<Message>::const_iterator iter;
164 iter = msglist.constEnd();
165 iter--; // this op is safe as we've allready passed an empty check
167 iter = msglist.constBegin();
170 int idx = indexForId((*iter).msgId());
171 if(idx >= 0 && !_messageList.isEmpty())
172 dupeId = _messageList[idx]->msgId();
174 // we always compare to the previous entry...
175 // if there isn't, we can fastforward to the top
177 id = _messageList[idx - 1]->msgId();
181 if((*iter).msgId() != dupeId)
190 while(iter != msglist.constBegin()) {
193 if(!fastForward && (*iter).msgId() < id)
196 if((*iter).msgId() != dupeId) {
197 if(!grouplist.isEmpty()) {
198 QDateTime nextTs = grouplist.value(0).timestamp();
199 QDateTime prevTs = (*iter).timestamp();
200 nextTs.setTimeSpec(Qt::UTC);
201 prevTs.setTimeSpec(Qt::UTC);
202 uint nextDay = nextTs.toTime_t() / 86400;
203 uint prevDay = prevTs.toTime_t() / 86400;
204 if(nextDay != prevDay) {
205 nextTs.setTime_t(nextDay * 86400);
206 nextTs.setTimeSpec(Qt::LocalTime);
207 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
208 dayChangeMsg.setMsgId((*iter).msgId());
209 grouplist.prepend(dayChangeMsg);
213 grouplist.prepend(*iter);
219 while(iter != msglist.constEnd()) {
220 if(!fastForward && (*iter).msgId() < id)
223 if((*iter).msgId() != dupeId) {
224 if(!grouplist.isEmpty()) {
225 QDateTime nextTs = grouplist.value(0).timestamp();
226 QDateTime prevTs = (*iter).timestamp();
227 nextTs.setTimeSpec(Qt::UTC);
228 prevTs.setTimeSpec(Qt::UTC);
229 uint nextDay = nextTs.toTime_t() / 86400;
230 uint prevDay = prevTs.toTime_t() / 86400;
231 if(nextDay != prevDay) {
232 nextTs.setTime_t(nextDay * 86400);
233 nextTs.setTimeSpec(Qt::LocalTime);
234 Message dayChangeMsg = Message::ChangeOfDay(nextTs);
235 dayChangeMsg.setMsgId((*iter).msgId());
236 grouplist.prepend(dayChangeMsg);
240 grouplist.prepend(*iter);
249 insertMessageGroup(grouplist);
250 return grouplist.count() + dupeCount;
253 void MessageModel::customEvent(QEvent *event) {
254 if(event->type() != QEvent::User)
259 if(_messageBuffer.isEmpty())
262 int processedMsgs = insertMessagesGracefully(_messageBuffer);
263 int remainingMsgs = _messageBuffer.count() - processedMsgs;
265 QList<Message>::iterator removeStart = _messageBuffer.begin() + remainingMsgs;
266 QList<Message>::iterator removeEnd = _messageBuffer.end();
267 _messageBuffer.erase(removeStart, removeEnd);
269 if(!_messageBuffer.isEmpty())
270 QCoreApplication::postEvent(this, new ProcessBufferEvent());
273 void MessageModel::clear() {
274 beginRemoveRows(QModelIndex(), 0, rowCount() - 1);
275 qDeleteAll(_messageList);
276 _messageList.clear();
282 // returns index of msg with given Id or of the next message after that (i.e., the index where we'd insert this msg)
283 int MessageModel::indexForId(MsgId id) {
284 if(_messageList.isEmpty() || id <= _messageList.value(0)->msgId())
286 if(id > _messageList.last()->msgId())
287 return _messageList.count();
290 int start = 0; int end = _messageList.count()-1;
294 int pivot = (end + start) / 2;
295 if(id <= _messageList.value(pivot)->msgId()) end = pivot;
300 void MessageModel::changeOfDay() {
301 _dayChangeTimer.setInterval(86400000);
302 qDebug() << _nextDayChange;
303 if(!_messageList.isEmpty()) {
304 int idx = _messageList.count();
305 while(idx > 0 && _messageList[idx - 1]->timeStamp() > _nextDayChange) {
308 beginInsertRows(QModelIndex(), idx, idx);
309 Message dayChangeMsg = Message::ChangeOfDay(_nextDayChange);
310 dayChangeMsg.setMsgId(_messageList[idx - 1]->msgId());
311 _messageList.insert(idx, createMessageModelItem(dayChangeMsg));
314 _nextDayChange = _nextDayChange.addSecs(86400);
317 /**********************************************************************************/
319 MessageModelItem::MessageModelItem(const Message &msg) :
320 _timestamp(msg.timestamp()),
322 _bufferId(msg.bufferInfo().bufferId()),
328 QVariant MessageModelItem::data(int column, int role) const {
329 if(column < MessageModel::TimestampColumn || column > MessageModel::ContentsColumn)
333 case MessageModel::MsgIdRole: return QVariant::fromValue<MsgId>(_msgId);
334 case MessageModel::BufferIdRole: return QVariant::fromValue<BufferId>(_bufferId);
335 case MessageModel::TypeRole: return _type;
336 case MessageModel::FlagsRole: return (int)_flags;
337 case MessageModel::TimestampRole: return _timestamp;
338 default: return QVariant();
344 bool MessageModelItem::lessThan(const MessageModelItem *m1, const MessageModelItem *m2){
345 return (*m1) < (*m2);
348 bool MessageModelItem::operator<(const MessageModelItem &other) const {
349 return _msgId < other._msgId;
352 bool MessageModelItem::operator==(const MessageModelItem &other) const {
353 return _msgId == other._msgId;
356 bool MessageModelItem::operator>(const MessageModelItem &other) const {
357 return _msgId > other._msgId;