+void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+ if (event->buttons() == Qt::LeftButton)
+ event->accept();
+ else
+ event->ignore();
+}
+
+
+void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+ if (_selectionMode != NoSelection && event->button() == Qt::LeftButton) {
+ chatScene()->selectionToClipboard(QClipboard::Selection);
+ event->accept();
+ }
+ else
+ event->ignore();
+}
+
+
+void ChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos)
+{
+ Q_UNUSED(pos);
+
+ GraphicalUi::contextMenuActionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>());
+}
+
+
+// ************************************************************
+// SenderChatItem
+// ************************************************************
+
+void SenderChatItem::initLayout(QTextLayout *layout) const
+{
+ initLayoutHelper(layout, QTextOption::ManualWrap, Qt::AlignRight);
+ doLayout(layout);
+}
+
+
+void SenderChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+ Q_UNUSED(option); Q_UNUSED(widget);
+ painter->save();
+ painter->setClipRect(boundingRect());
+ paintBackground(painter);
+
+ qreal layoutWidth = layout()->minimumWidth();
+ qreal offset = 0;
+ if (chatScene()->senderCutoffMode() == ChatScene::CutoffLeft)
+ offset = qMin(width() - layoutWidth, (qreal)0);
+ else
+ offset = qMax(layoutWidth - width(), (qreal)0);
+
+ if (layoutWidth > width()) {
+ // Draw a nice gradient for longer items
+ // Qt's text drawing with a gradient brush sucks, so we use an alpha-channeled pixmap instead
+ QPixmap pixmap(layout()->boundingRect().toRect().size());
+ pixmap.fill(Qt::transparent);
+ QPainter pixPainter(&pixmap);
+ layout()->draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), additionalFormats());
+ pixPainter.end();
+
+ // Create alpha channel mask
+ QPixmap mask(pixmap.size());
+ QPainter maskPainter(&mask);
+ QLinearGradient gradient;
+ if (offset < 0) {
+ gradient.setStart(0, 0);
+ gradient.setFinalStop(12, 0);
+ gradient.setColorAt(0, Qt::black);
+ gradient.setColorAt(1, Qt::white);
+ }
+ else {
+ gradient.setStart(width()-10, 0);
+ gradient.setFinalStop(width(), 0);
+ gradient.setColorAt(0, Qt::white);
+ gradient.setColorAt(1, Qt::black);
+ }
+ maskPainter.fillRect(0, 0, pixmap.width(), pixmap.height(), gradient);
+ pixmap.setAlphaChannel(mask);
+ painter->drawPixmap(pos(), pixmap);
+ }
+ else {
+ layout()->draw(painter, pos(), additionalFormats(), boundingRect());
+ }
+ painter->restore();
+}
+
+
+void SenderChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode)
+{
+ if (clickMode == ChatScene::DoubleClick) {
+ BufferInfo curBufInfo = Client::networkModel()->bufferInfo(data(MessageModel::BufferIdRole).value<BufferId>());
+ QString nick = data(MessageModel::EditRole).toString();
+ // check if the nick is a valid ircUser
+ if (!nick.isEmpty() && Client::network(curBufInfo.networkId())->ircUser(nick))
+ Client::bufferModel()->switchToOrStartQuery(curBufInfo.networkId(), nick);
+ }
+ else
+ ChatItem::handleClick(pos, clickMode);
+}
+
+
+// ************************************************************
+// ContentsChatItem
+// ************************************************************
+
+ContentsChatItem::ActionProxy ContentsChatItem::_actionProxy;
+
+ContentsChatItem::ContentsChatItem(const QPointF &pos, const qreal &width, ChatLine *parent)
+ : ChatItem(QRectF(pos, QSizeF(width, 0)), parent),
+ _data(0)
+{
+ setPos(pos);
+ setGeometryByWidth(width);
+}
+
+
+QFontMetricsF *ContentsChatItem::fontMetrics() const
+{
+ return QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second, 0);
+}
+
+
+ContentsChatItem::~ContentsChatItem()
+{
+ delete _data;
+}
+
+
+void ContentsChatItem::clearCache()
+{
+ delete _data;
+ _data = 0;
+ ChatItem::clearCache();
+}
+
+
+ContentsChatItemPrivate *ContentsChatItem::privateData() const
+{
+ if (!_data) {
+ ContentsChatItem *that = const_cast<ContentsChatItem *>(this);
+ that->_data = new ContentsChatItemPrivate(ClickableList::fromString(data(ChatLineModel::DisplayRole).toString()), that);
+ }
+ return _data;
+}
+
+
+qreal ContentsChatItem::setGeometryByWidth(qreal w)
+{
+ // We use this for reloading layout info as well, so we can't bail out if the width doesn't change
+
+ // compute height
+ int lines = 1;
+ WrapColumnFinder finder(this);
+ while (finder.nextWrapColumn(w) > 0)
+ lines++;
+ qreal spacing = qMax(fontMetrics()->lineSpacing(), fontMetrics()->height()); // cope with negative leading()
+ qreal h = lines * spacing;
+ delete _data;
+ _data = 0;
+
+ if (w != width() || h != height())
+ setGeometry(w, h);
+
+ return h;
+}
+
+
+void ContentsChatItem::initLayout(QTextLayout *layout) const
+{
+ initLayoutHelper(layout, QTextOption::WrapAtWordBoundaryOrAnywhere);
+ doLayout(layout);
+}
+
+
+void ContentsChatItem::doLayout(QTextLayout *layout) const
+{
+ ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ if (!wrapList.count()) return; // empty chatitem
+
+ qreal h = 0;
+ qreal spacing = qMax(fontMetrics()->lineSpacing(), fontMetrics()->height()); // cope with negative leading()
+ WrapColumnFinder finder(this);
+ layout->beginLayout();
+ forever {
+ QTextLine line = layout->createLine();
+ if (!line.isValid())
+ break;
+
+ int col = finder.nextWrapColumn(width());
+ if (col < 0)
+ col = layout->text().length();
+ int num = col - line.textStart();
+
+ line.setNumColumns(num);
+
+ // Sometimes, setNumColumns will create a line that's too long (cf. Qt bug 238249)
+ // We verify this and try setting the width again, making it shorter each time until the lengths match.
+ // Dead fugly, but seems to work…
+ for (int i = line.textLength()-1; i >= 0 && line.textLength() > num; i--) {
+ line.setNumColumns(i);
+ }
+ if (num != line.textLength()) {
+ qWarning() << "WARNING: Layout engine couldn't workaround Qt bug 238249, please report!";
+ // qDebug() << num << line.textLength() << t.mid(line.textStart(), line.textLength()) << t.mid(line.textStart() + line.textLength());
+ }
+
+ line.setPosition(QPointF(0, h));
+ h += spacing;
+ }
+ layout->endLayout();
+}
+
+
+Clickable ContentsChatItem::clickableAt(const QPointF &pos) const
+{
+ return privateData()->clickables.atCursorPos(posToCursor(pos));
+}
+
+
+UiStyle::FormatList ContentsChatItem::formatList() const
+{
+ UiStyle::FormatList fmtList = ChatItem::formatList();
+ for (int i = 0; i < privateData()->clickables.count(); i++) {
+ Clickable click = privateData()->clickables.at(i);
+ if (click.type() == Clickable::Url) {
+ overlayFormat(fmtList, click.start(), click.start() + click.length(), UiStyle::Url);
+ }
+ }
+ return fmtList;
+}
+
+
+QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const
+{
+ QVector<QTextLayout::FormatRange> fmt = ChatItem::additionalFormats();
+ // mark a clickable if hovered upon
+ 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()) {
+ if (privateData()->currentClickable.isValid()) {
+ chatLine()->unsetCursor();
+ privateData()->currentClickable = Clickable();
+ }
+ clearWebPreview();
+ chatLine()->update();
+ }
+}
+
+
+void ContentsChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode)
+{
+ if (clickMode == ChatScene::SingleClick) {
+ qint16 idx = posToCursor(pos);
+ Clickable foo = privateData()->clickables.atCursorPos(idx);
+ if (foo.isValid()) {
+ NetworkId networkId = Client::networkModel()->networkId(data(MessageModel::BufferIdRole).value<BufferId>());
+ QString text = data(ChatLineModel::DisplayRole).toString();
+ foo.activate(networkId, text);
+ }
+ }
+ else if (clickMode == ChatScene::DoubleClick) {
+ chatScene()->setSelectingItem(this);
+ setSelectionMode(PartialSelection);
+ Clickable click = clickableAt(pos);
+ if (click.isValid()) {
+ setSelectionStart(click.start());
+ setSelectionEnd(click.start() + click.length());
+ }
+ else {
+ // find word boundary
+ QString str = data(ChatLineModel::DisplayRole).toString();
+ qint16 cursor = posToCursor(pos);
+ qint16 start = str.lastIndexOf(QRegExp("\\W"), cursor) + 1;
+ qint16 end = qMin(str.indexOf(QRegExp("\\W"), cursor), str.length());
+ if (end < 0) end = str.length();
+ setSelectionStart(start);
+ setSelectionEnd(end);
+ }
+ chatLine()->update();
+ }
+ else if (clickMode == ChatScene::TripleClick) {
+ setSelection(PartialSelection, 0, data(ChatLineModel::DisplayRole).toString().length());
+ }
+ ChatItem::handleClick(pos, clickMode);
+}
+
+
+void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+ // mouse move events always mean we're not hovering anymore...
+ endHoverMode();
+ ChatItem::mouseMoveEvent(event);
+}
+
+
+void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+ endHoverMode();
+ event->accept();
+}
+
+
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
+{
+ bool onClickable = false;
+ Clickable click = clickableAt(event->pos());
+ if (click.isValid()) {
+ if (click.type() == Clickable::Url) {
+ onClickable = true;
+ showWebPreview(click);
+ }
+ else if (click.type() == Clickable::Channel) {
+ QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
+ // don't make clickable if it's our own name
+ BufferId myId = data(MessageModel::BufferIdRole).value<BufferId>();
+ if (Client::networkModel()->bufferName(myId) != name)
+ onClickable = true;
+ }
+ if (onClickable) {
+ chatLine()->setCursor(Qt::PointingHandCursor);
+ privateData()->currentClickable = click;
+ chatLine()->update();
+ return;
+ }
+ }
+ if (!onClickable) endHoverMode();
+ event->accept();
+}
+
+
+void ContentsChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos)
+{
+ if (privateData()->currentClickable.isValid()) {
+ Clickable click = privateData()->currentClickable;
+ switch (click.type()) {
+ case Clickable::Url:
+ privateData()->activeClickable = click;
+ menu->addAction(SmallIcon("edit-copy"), tr("Copy Link Address"),
+ &_actionProxy, SLOT(copyLinkToClipboard()))->setData(QVariant::fromValue<void *>(this));
+ break;
+ case Clickable::Channel:
+ {
+ // Remove existing menu actions, they confuse us when right-clicking on a clickable
+ menu->clear();
+ QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
+ GraphicalUi::contextMenuActionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>(), name);
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ else {
+ // Buffer-specific actions
+ ChatItem::addActionsToMenu(menu, pos);
+ }
+}
+
+
+void ContentsChatItem::copyLinkToClipboard()
+{
+ Clickable click = privateData()->activeClickable;
+ if (click.isValid() && click.type() == Clickable::Url) {
+ QString url = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
+ if (!url.contains("://"))
+ url = "http://" + url;
+ chatScene()->stringToClipboard(url);
+ }
+}
+
+
+/******** WEB PREVIEW *****************************************************************************/
+
+void ContentsChatItem::showWebPreview(const Clickable &click)
+{
+#ifndef HAVE_WEBKIT
+ Q_UNUSED(click);
+#else
+ QTextLine line = layout()->lineForTextPosition(click.start());
+ qreal x = line.cursorToX(click.start());
+ qreal width = line.cursorToX(click.start() + click.length()) - x;
+ qreal height = line.height();
+ qreal y = height * line.lineNumber();
+
+ QPointF topLeft = mapToScene(pos()) + QPointF(x, y);
+ QRectF urlRect = QRectF(topLeft.x(), topLeft.y(), width, height);
+
+ QString urlstr = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
+ if (!urlstr.contains("://"))
+ urlstr = "http://" + urlstr;
+ QUrl url = QUrl::fromEncoded(urlstr.toUtf8(), QUrl::TolerantMode);
+ chatScene()->loadWebPreview(this, url, urlRect);
+#endif
+}
+
+
+void ContentsChatItem::clearWebPreview()
+{
+#ifdef HAVE_WEBKIT
+ chatScene()->clearWebPreview(this);
+#endif
+}
+
+
+/*************************************************************************************************/
+
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(const ChatItem *_item)
+ : item(_item),
+ wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+ wordidx(0),
+ lineCount(0),
+ choppedTrailing(0)
+{
+}
+
+
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder()
+{
+}
+
+
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn(qreal width)
+{
+ if (wordidx >= wrapList.count())
+ return -1;
+
+ lineCount++;
+ qreal targetWidth = lineCount * 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;
+
+ // check if we have a very long word that needs inter word wrap
+ if (wrapList.at(start).endX > targetWidth) {
+ if (!line.isValid()) {
+ item->initLayoutHelper(&layout, QTextOption::NoWrap);
+ layout.beginLayout();
+ line = layout.createLine();
+ layout.endLayout();
+ }
+ return line.xToCursor(targetWidth, QTextLine::CursorOnCharacter);
+ }
+
+ while (true) {
+ if (start + 1 == end) {
+ wordidx = end;
+ const ChatLineModel::Word &lastWord = wrapList.at(start); // the last word we were able to squeeze in
+
+ // both cases should be cought preliminary
+ Q_ASSERT(lastWord.endX <= targetWidth); // ensure that "start" really fits in
+ Q_ASSERT(end < wrapList.count()); // ensure that start isn't the last word
+
+ choppedTrailing += lastWord.trailing - (targetWidth - lastWord.endX);
+ return wrapList.at(wordidx).start;
+ }
+
+ qint16 pivot = (end + start) / 2;
+ if (wrapList.at(pivot).endX > targetWidth) {
+ end = pivot;
+ }
+ else {
+ start = pivot;
+ }
+ }
+ Q_ASSERT(false);
+ return -1;
+}
+