1 /***************************************************************************
2 * Copyright (C) 2005-08 by the Quassel Project *
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 <QFontMetrics>
22 #include <QTextBoundaryFinder>
24 #include "chatlinemodelitem.h"
25 #include "chatlinemodel.h"
29 ChatLineModelItem::ChatLineModelItem(const Message &msg) : MessageModelItem(msg) {
30 QtUiStyle::StyledMessage m = QtUi::style()->styleMessage(msg);
32 _timestamp.plainText = m.timestamp.plainText;
33 _sender.plainText = m.sender.plainText;
34 _contents.plainText = m.contents.plainText;
36 _timestamp.formatList = m.timestamp.formatList;
37 _sender.formatList = m.sender.formatList;
38 _contents.formatList = m.contents.formatList;
44 QVariant ChatLineModelItem::data(int column, int role) const {
45 const ChatLinePart *part;
48 case ChatLineModel::TimestampColumn: part = &_timestamp; break;
49 case ChatLineModel::SenderColumn: part = &_sender; break;
50 case ChatLineModel::ContentsColumn: part = &_contents; break;
51 default: return MessageModelItem::data(column, role);
55 case ChatLineModel::DisplayRole:
56 return part->plainText;
57 case ChatLineModel::FormatRole:
58 return QVariant::fromValue<UiStyle::FormatList>(part->formatList);
59 case ChatLineModel::WrapListRole:
60 if(column != ChatLineModel::ContentsColumn) return QVariant();
61 return QVariant::fromValue<ChatLineModel::WrapList>(_wrapList);
64 return MessageModelItem::data(column, role);
67 bool ChatLineModelItem::setData(int column, const QVariant &value, int role) {
71 // compute the width of a text snippet
72 qreal ChatLineModelItem::snippetWidth(int start, int end, QFontMetricsF *&metrics, int &formatListIdx, int &formatEnd) {
75 if(formatEnd <= start) {
77 formatEnd = _contents.formatList.count() > formatListIdx+1 ? _contents.formatList[formatListIdx+1].first
78 : _contents.plainText.length();
79 metrics = QtUi::style()->fontMetrics(_contents.formatList[formatListIdx].second);
80 Q_ASSERT(formatEnd > start);
82 int i = qMin(end, formatEnd);
83 width += metrics->width(_contents.plainText.mid(start, i - start));
89 void ChatLineModelItem::computeWrapList() {
90 enum Mode { SearchStart, SearchEnd };
92 QList<ChatLineModel::Word> wplist; // use a temp list which we'll later copy into a QVector for efficiency
93 QTextBoundaryFinder finder(QTextBoundaryFinder::Word, _contents.plainText);
98 bool wordStart = false; bool wordEnd = false;
99 QFontMetricsF *metrics = 0;
100 Mode mode = SearchEnd;
101 ChatLineModel::Word word;
104 idx = finder.toNextBoundary();
105 if(idx < 0) idx = _contents.plainText.length();
106 wordStart = finder.boundaryReasons().testFlag(QTextBoundaryFinder::StartWord);
107 wordEnd = finder.boundaryReasons().testFlag(QTextBoundaryFinder::EndWord);
109 //qDebug() << wordStart << wordEnd << _contents.plainText.left(idx) << _contents.plainText.mid(idx);
111 if(mode == SearchEnd || !wordStart && wordEnd) {
112 if(wordStart || !wordEnd) continue;
117 // mode == SearchStart
118 word.width = snippetWidth(word.start, oldidx, metrics, flistidx, fmtend);
119 word.trailing = snippetWidth(oldidx, idx, metrics, flistidx, fmtend);
126 } while(finder.isAtBoundary());
128 // A QVector needs less space than a QList
129 _wrapList.resize(wplist.count());
130 for(int i = 0; i < wplist.count(); i++) {
131 _wrapList[i] = wplist.at(i);