+// ************************************************************
+// ContentsChatItem
+// ************************************************************
+ContentsChatItem::ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent)
+ : ChatItem(0, 0, pos, parent)
+{
+ const QAbstractItemModel *model_ = model();
+ QModelIndex index = model_->index(row(), column());
+ _fontMetrics = QtUi::style()->fontMetrics(model_->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+
+ setGeometryByWidth(width);
+}
+
+qreal ContentsChatItem::setGeometryByWidth(qreal w) {
+ if(w != width()) {
+ setWidth(w);
+ // compute height
+ int lines = 1;
+ WrapColumnFinder finder(this);
+ while(finder.nextWrapColumn() > 0)
+ lines++;
+ setHeight(lines * fontMetrics()->lineSpacing());
+ }
+ return height();
+}
+
+void ContentsChatItem::updateLayout() {
+ if(!privateData()) {
+ ContentsChatItemPrivate *data = new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere),
+ findClickables());
+ // data->clickables = findClickables();
+ setPrivateData(data);
+ }
+
+ // Now layout
+ ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ if(!wrapList.count()) return; // empty chatitem
+
+ qreal h = 0;
+ WrapColumnFinder finder(this);
+ layout()->beginLayout();
+ forever {
+ QTextLine line = layout()->createLine();
+ if(!line.isValid())
+ break;
+
+ int col = finder.nextWrapColumn();
+ line.setNumColumns(col >= 0 ? col - line.textStart() : layout()->text().length());
+ line.setPosition(QPointF(0, h));
+ h += fontMetrics()->lineSpacing();
+ }
+ layout()->endLayout();
+}
+
+// NOTE: This method is not threadsafe and not reentrant!
+// (RegExps are not constant while matching, and they are static here for efficiency)
+QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() {
+ // For matching URLs
+ static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)");
+ static QString urlChars("(?:[\\w\\-~@/?&=+$()!%#]|[,.;:]\\w)");
+
+ static QRegExp regExp[] = {
+ // URL
+ // QRegExp(QString("((?:https?://|s?ftp://|irc://|mailto:|www\\.)%1+|%1+\\.[a-z]{2,4}(?:?=/%1+|\\b))%2").arg(urlChars, urlEnd)),
+ QRegExp(QString("((?:(?:https?://|s?ftp://|irc://|mailto:)|www)%1+)%2").arg(urlChars, urlEnd)),
+
+ // Channel name
+ // We don't match for channel names starting with + or &, because that gives us a lot of false positives.
+ QRegExp("((?:#|![A-Z0-9]{5})[^,:\\s]+(?::[^,:\\s]+)?)\\b")
+
+ // TODO: Nicks, we'll need a filtering for only matching known nicknames further down if we do this
+ };
+
+ static const int regExpCount = 2; // number of regexps in the array above
+
+ qint16 matches[] = { 0, 0, 0 };
+ qint16 matchEnd[] = { 0, 0, 0 };
+
+ QString str = data(ChatLineModel::DisplayRole).toString();
+
+ QList<Clickable> result;
+ qint16 idx = 0;
+ qint16 minidx;
+ int type = -1;
+
+ do {
+ type = -1;
+ minidx = str.length();
+ for(int i = 0; i < regExpCount; i++) {
+ if(matches[i] < 0 || matchEnd[i] > str.length()) continue;
+ if(idx >= matchEnd[i]) {
+ matches[i] = str.indexOf(regExp[i], qMax(matchEnd[i], idx));
+ if(matches[i] >= 0) matchEnd[i] = matches[i] + regExp[i].cap(1).length();
+ }
+ if(matches[i] >= 0 && matches[i] < minidx) {
+ minidx = matches[i];
+ type = i;
+ }
+ }
+ if(type >= 0) {
+ idx = matchEnd[type];
+ if(type == Clickable::Url && str.at(idx-1) == ')') { // special case: closing paren only matches if we had an open one
+ if(!str.mid(matches[type], matchEnd[type]-matches[type]).contains('(')) matchEnd[type]--;
+ }
+ result.append(Clickable((Clickable::Type)type, matches[type], matchEnd[type] - matches[type]));
+ }
+ } while(type >= 0);
+
+ /* testing
+ if(!result.isEmpty()) qDebug() << str;
+ foreach(Clickable click, result) {
+ qDebug() << str.mid(click.start, click.length);
+ }
+ */
+ return result;
+}
+
+QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const {
+ // mark a clickable if hovered upon
+ QVector<QTextLayout::FormatRange> fmt;
+ if(privateData()->currentClickable.isValid()) {
+ Clickable click = privateData()->currentClickable;
+ QTextLayout::FormatRange f;
+ f.start = click.start;
+ f.length = click.length;
+ f.format.setFontUnderline(true);
+ fmt.append(f);
+ }
+ return fmt;
+}
+
+void ContentsChatItem::endHoverMode() {
+ if(privateData()->currentClickable.isValid()) {
+ setCursor(Qt::ArrowCursor);
+ privateData()->currentClickable = Clickable();
+ update();
+ }
+}
+
+void ContentsChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+ privateData()->hasDragged = false;
+ ChatItem::mousePressEvent(event);
+}
+
+void ContentsChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+ if(!event->buttons() && !privateData()->hasDragged) {
+ // got a click
+ Clickable click = privateData()->currentClickable;
+ if(click.isValid()) {
+ QString str = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
+ switch(click.type) {
+ case Clickable::Url:
+ QDesktopServices::openUrl(str);
+ break;
+ case Clickable::Channel:
+ // TODO join or whatever...
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ ChatItem::mouseReleaseEvent(event);
+}
+
+void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+ // mouse move events always mean we're not hovering anymore...
+ endHoverMode();
+ // also, check if we have dragged the mouse
+ if(!privateData()->hasDragged && event->buttons() & Qt::LeftButton
+ && (event->buttonDownScreenPos(Qt::LeftButton) - event->screenPos()).manhattanLength() >= QApplication::startDragDistance())
+ privateData()->hasDragged = true;
+ ChatItem::mouseMoveEvent(event);
+}
+
+void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+ endHoverMode();
+ event->accept();
+}
+
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+ bool onClickable = false;
+ qint16 idx = posToCursor(event->pos());
+ for(int i = 0; i < privateData()->clickables.count(); i++) {
+ Clickable click = privateData()->clickables.at(i);
+ if(idx >= click.start && idx < click.start + click.length) {
+ if(click.type == Clickable::Url)
+ onClickable = true;
+ else if(click.type == Clickable::Channel) {
+ // TODO: don't make clickable if it's our own name
+ //onClickable = true; //FIXME disabled for now
+ }
+ if(onClickable) {
+ setCursor(Qt::PointingHandCursor);
+ privateData()->currentClickable = click;
+ update();
+ break;
+ }
+ }
+ }
+ if(!onClickable) endHoverMode();
+ event->accept();
+}
+
+/*************************************************************************************************/
+
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item)
+ : item(_item),
+ layout(0),
+ wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+ wordidx(0),
+ lineCount(0),
+ choppedTrailing(0),
+ lastwrapcol(0),
+ lastwrappos(0),
+ width(0)
+{
+}
+
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
+ delete layout;
+}
+
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn() {
+ if(wordidx >= wrapList.count())
+ return -1;
+
+ lineCount++;
+ qreal targetWidth = lineCount * item->width() + choppedTrailing;
+
+ qint16 start = wordidx;
+ qint16 end = wrapList.count() - 1;
+
+ // check if the whole line fits
+ if(wrapList.at(end).endX <= targetWidth || start == end)
+ return -1;
+
+ while(true) {
+ if(start == end) {
+ wordidx = start;
+ if(wordidx > 0) {
+ const ChatLineModel::Word &prevWord = wrapList.at(wordidx - 1);
+ choppedTrailing += prevWord.trailing - (targetWidth - prevWord.endX);
+ }
+ return wrapList.at(wordidx).start;
+ }
+ qint16 pivot = (end + start) / 2;
+ if(wrapList.at(pivot).endX > targetWidth && wordidx != pivot) {
+ end = pivot;
+ } else {
+ start = pivot + 1;
+ }
+ }
+ return -1;
+}