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 <QGraphicsSceneMouseEvent>
23 #include <QTextCursor>
24 #include <QTextDocument>
29 #include "chatlinemodel.h"
32 ChatItem::ChatItem(const QPersistentModelIndex &index_, QGraphicsItem *parent) : QGraphicsItem(parent), _index(index_) {
33 QFontMetricsF *metrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
34 _lineHeight = metrics->lineSpacing();
37 ChatItem::~ChatItem() {
41 QVariant ChatItem::data(int role) const {
42 if(!_index.isValid()) {
43 qWarning() << "ChatItem::data(): Model index is invalid!" << _index;
46 return _index.data(role);
50 QRectF ChatItem::boundingRect() const {
51 return QRectF(0, 0, _width, _height);
55 void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
56 Q_UNUSED(option); Q_UNUSED(widget);
58 painter->drawText(boundingRect(), data(MessageModel::DisplayRole).toString());
59 painter->setPen(Qt::DotLine);
60 painter->drawRect(boundingRect());
63 int ChatItem::setWidth(int w) {
64 if(w == _boundingRect.width()) return _boundingRect.height();
65 int h = heightForWidth(w);
66 _boundingRect.setWidth(w);
67 _boundingRect.setHeight(h);
71 int ChatItem::heightForWidth(int width) {
72 if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn)
73 return _lineHeight; // only contents can be multi-line
75 QVariantList wrapList = data(ChatLineModel::WrapListRole).toList();
78 for(int i = 0; i < wrapList.count(); i+=2) {
79 if(wrapList.at(i+1).toUInt() - offset < width) continue;
82 if(offset < wrapList.at(i-1).toUInt()) offset = wrapList.at(i-1).toUInt();
89 return lines * _lineHeight;
94 void ChatItem::setTextOption(const QTextOption &option) {
99 QTextOption ChatItem::textOption() const {
103 QString ChatItem::text() const {
104 return _layout.text();
107 void ChatItem::setText(const UiStyle::StyledText &text) {
108 _layout.setText(text.text);
109 _layout.setAdditionalFormats(text.formatList);
113 void ChatItem::layout() {
114 if(!_layout.additionalFormats().count()) return; // no text set
115 if(_width <= 0) return;
116 prepareGeometryChange();
117 QFontMetrics metrics(_layout.additionalFormats()[0].format.font());
118 int leading = metrics.leading();
120 _layout.setTextOption(textOption());
121 _layout.beginLayout();
123 QTextLine line = _layout.createLine();
124 if(!line.isValid()) break;
125 line.setLineWidth(_width);
126 if(textOption().wrapMode() != QTextOption::NoWrap && line.naturalTextWidth() > _width) {
127 // word did not fit, we need to wrap it in the middle
128 // this is a workaround for Qt failing to handle WrapAtWordBoundaryOrAnywhere correctly
129 QTextOption::WrapMode mode = textOption().wrapMode();
130 textOption().setWrapMode(QTextOption::WrapAnywhere);
131 _layout.setTextOption(textOption());
132 line.setLineWidth(_width);
133 textOption().setWrapMode(mode);
134 _layout.setTextOption(textOption());
137 line.setPosition(QPoint(0, height));
138 height += line.height();
142 } QDateTime _timestamp;
146 QRectF ChatItem::boundingRect() const {
147 return _layout.boundingRect();
150 void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
151 Q_UNUSED(option); Q_UNUSED(widget);
152 _layout.draw(painter, QPointF(0, 0));
158 void ChatItem::mouseMoveEvent ( QGraphicsSceneMouseEvent * event ) {
159 qDebug() << (void*)this << "moving" << event->pos();
160 if(event->pos().y() < 0) {
161 QTextCursor cursor(document());
162 //cursor.insertText("foo");
163 //cursor.select(QTextCursor::Document);
165 } else QGraphicsTextItem::mouseMoveEvent(event);