1 /***************************************************************************
2 * Copyright (C) 2005-09 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 <QApplication>
23 #include <QDesktopServices>
24 #include <QFontMetrics>
25 #include <QGraphicsSceneMouseEvent>
28 #include <QTextLayout>
31 #include "buffermodel.h"
32 #include "bufferview.h"
34 #include "chatlinemodel.h"
35 #include "iconloader.h"
38 #include "qtuistyle.h"
40 ChatItem::ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent)
41 : QGraphicsItem(parent),
42 _boundingRect(0, 0, width, height),
43 _selectionMode(NoSelection),
46 setAcceptHoverEvents(true);
51 QVariant ChatItem::data(int role) const {
52 QModelIndex index = model()->index(row(), column());
53 if(!index.isValid()) {
54 qWarning() << "ChatItem::data(): model index is invalid!" << index;
57 return model()->data(index, role);
60 void ChatItem::initLayoutHelper(QTextLayout *layout, QTextOption::WrapMode wrapMode, Qt::Alignment alignment) const {
63 layout->setText(data(MessageModel::DisplayRole).toString());
66 option.setWrapMode(wrapMode);
67 option.setAlignment(alignment);
68 layout->setTextOption(option);
70 QList<QTextLayout::FormatRange> formatRanges
71 = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length());
72 layout->setAdditionalFormats(formatRanges);
75 void ChatItem::doLayout(QTextLayout *layout) const {
76 layout->beginLayout();
77 QTextLine line = layout->createLine();
79 line.setLineWidth(width());
80 line.setPosition(QPointF(0,0));
86 // NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
87 // This is a deliberate trade-off. (-> selectFmt creation, data() call)
88 void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
89 Q_UNUSED(option); Q_UNUSED(widget);
90 painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
91 QVector<QTextLayout::FormatRange> formats = additionalFormats();
92 QTextLayout::FormatRange selectFmt = selectionFormat();
93 if(selectFmt.format.isValid()) formats.append(selectFmt);
96 layout.draw(painter, QPointF(0,0), formats, boundingRect());
98 // layout()->draw(painter, QPointF(0,0), formats, boundingRect());
101 // uncomment partially or all of the following stuff:
103 // 0) alternativ painter color for debug stuff
105 // painter->setPen(Qt::red);
107 // painter->setPen(Qt::blue);
108 // 1) draw wordwrap points in the first line
109 // if(column() == 2) {
110 // ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
111 // foreach(ChatLineModel::Word word, wrapList) {
112 // if(word.endX > width())
114 // painter->drawLine(word.endX, 0, word.endX, height());
117 // 2) draw MsgId over the time column
118 // if(column() == 0) {
119 // QString msgIdString = QString::number(data(MessageModel::MsgIdRole).value<MsgId>().toInt());
120 // QPointF bottomPoint = boundingRect().bottomLeft();
121 // bottomPoint.ry() -= 2;
122 // painter->drawText(bottomPoint, msgIdString);
124 // 3) draw bounding rect
125 // painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
128 qint16 ChatItem::posToCursor(const QPointF &pos) const {
129 if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
130 if(pos.y() < 0) return 0;
134 for(int l = layout.lineCount() - 1; l >= 0; l--) {
135 QTextLine line = layout.lineAt(l);
136 if(pos.y() >= line.y()) {
137 return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
143 bool ChatItem::hasSelection() const {
144 if(_selectionMode == NoSelection)
146 if(_selectionMode == FullSelection)
149 return _selectionStart != _selectionEnd;
152 QString ChatItem::selection() const {
153 if(_selectionMode == FullSelection)
154 return data(MessageModel::DisplayRole).toString();
155 if(_selectionMode == PartialSelection)
156 return data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
160 void ChatItem::setSelection(SelectionMode mode, qint16 start, qint16 end) {
161 _selectionMode = mode;
162 _selectionStart = start;
167 void ChatItem::setFullSelection() {
168 if(_selectionMode != FullSelection) {
169 _selectionMode = FullSelection;
174 void ChatItem::clearSelection() {
175 if(_selectionMode != NoSelection) {
176 _selectionMode = NoSelection;
181 void ChatItem::continueSelecting(const QPointF &pos) {
182 _selectionMode = PartialSelection;
183 _selectionEnd = posToCursor(pos);
187 bool ChatItem::isPosOverSelection(const QPointF &pos) const {
188 if(_selectionMode == FullSelection)
190 if(_selectionMode == PartialSelection) {
191 int cursor = posToCursor(pos);
192 return cursor >= qMin(_selectionStart, _selectionEnd) && cursor <= qMax(_selectionStart, _selectionEnd);
197 QTextLayout::FormatRange ChatItem::selectionFormat() const {
198 QTextLayout::FormatRange selectFmt;
199 if(_selectionMode != NoSelection) {
200 selectFmt.format.setForeground(QApplication::palette().brush(QPalette::HighlightedText));
201 selectFmt.format.setBackground(QApplication::palette().brush(QPalette::Highlight));
202 if(_selectionMode == PartialSelection) {
203 selectFmt.start = qMin(_selectionStart, _selectionEnd);
204 selectFmt.length = qAbs(_selectionStart - _selectionEnd);
205 } else { // FullSelection
207 selectFmt.length = data(MessageModel::DisplayRole).toString().length();
210 selectFmt.start = -1;
211 selectFmt.length = 0;
216 QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
217 QList<QRectF> resultList;
218 const QAbstractItemModel *model_ = model();
222 QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
223 QList<int> indexList;
224 int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
225 while(searchIdx != -1) {
226 indexList << searchIdx;
227 searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
232 foreach(int idx, indexList) {
233 QTextLine line = layout.lineForTextPosition(idx);
234 qreal x = line.cursorToX(idx);
235 qreal width = line.cursorToX(idx + searchWord.count()) - x;
236 qreal height = line.height();
237 qreal y = height * line.lineNumber();
238 resultList << QRectF(x, y, width, height);
244 void ChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode) {
245 // single clicks are already handled by the scene (for clearing the selection)
246 if(clickMode == ChatScene::DragStartClick) {
247 chatScene()->setSelectingItem(this);
248 _selectionStart = _selectionEnd = posToCursor(pos);
249 _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
254 void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
255 if(event->buttons() == Qt::LeftButton) {
256 if(contains(event->pos())) {
257 qint16 end = posToCursor(event->pos());
258 if(end != _selectionEnd) {
260 _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
265 chatScene()->startGlobalSelection(this, event->pos());
273 void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
274 if(event->buttons() == Qt::LeftButton)
280 void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
281 if(_selectionMode != NoSelection && event->button() == Qt::LeftButton) {
282 chatScene()->selectionToClipboard(QClipboard::Selection);
288 void ChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos) {
291 Client::mainUi()->actionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>());
294 // ************************************************************
296 // ************************************************************
298 void SenderChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
299 Q_UNUSED(option); Q_UNUSED(widget);
301 painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
304 qreal layoutWidth = layout.minimumWidth();
306 if(chatScene()->senderCutoffMode() == ChatScene::CutoffLeft)
307 offset = qMin(width() - layoutWidth, (qreal)0);
309 offset = qMax(layoutWidth - width(), (qreal)0);
311 QTextLayout::FormatRange selectFmt = selectionFormat();
313 if(layoutWidth > width()) {
314 // Draw a nice gradient for longer items
315 // Qt's text drawing with a gradient brush sucks, so we use an alpha-channeled pixmap instead
316 QPixmap pixmap(layout.boundingRect().toRect().size());
317 pixmap.fill(Qt::transparent);
318 QPainter pixPainter(&pixmap);
319 layout.draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), QVector<QTextLayout::FormatRange>() << selectFmt);
322 // Create alpha channel mask
323 QPixmap mask(pixmap.size());
324 QPainter maskPainter(&mask);
325 QLinearGradient gradient;
327 gradient.setStart(0, 0);
328 gradient.setFinalStop(12, 0);
329 gradient.setColorAt(0, Qt::black);
330 gradient.setColorAt(1, Qt::white);
332 gradient.setStart(width()-10, 0);
333 gradient.setFinalStop(width(), 0);
334 gradient.setColorAt(0, Qt::white);
335 gradient.setColorAt(1, Qt::black);
337 maskPainter.fillRect(boundingRect(), gradient);
338 pixmap.setAlphaChannel(mask);
339 painter->drawPixmap(0, 0, pixmap);
341 layout.draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>() << selectFmt, boundingRect());
345 // ************************************************************
347 // ************************************************************
349 ContentsChatItem::ActionProxy ContentsChatItem::_actionProxy;
351 ContentsChatItem::ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent)
352 : ChatItem(0, 0, pos, parent),
355 const QAbstractItemModel *model_ = model();
356 QModelIndex index = model_->index(row(), column());
357 _fontMetrics = QtUi::style()->fontMetrics(model_->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
359 setGeometryByWidth(width);
362 ContentsChatItem::~ContentsChatItem() {
366 ContentsChatItemPrivate *ContentsChatItem::privateData() const {
368 ContentsChatItem *that = const_cast<ContentsChatItem *>(this);
369 that->_data = new ContentsChatItemPrivate(findClickables(), that);
374 qreal ContentsChatItem::setGeometryByWidth(qreal w) {
376 prepareGeometryChange();
380 WrapColumnFinder finder(this);
381 while(finder.nextWrapColumn() > 0)
383 setHeight(lines * fontMetrics()->lineSpacing());
390 void ContentsChatItem::doLayout(QTextLayout *layout) const {
391 ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
392 if(!wrapList.count()) return; // empty chatitem
395 WrapColumnFinder finder(this);
396 layout->beginLayout();
398 QTextLine line = layout->createLine();
402 int col = finder.nextWrapColumn();
403 line.setNumColumns(col >= 0 ? col - line.textStart() : layout->text().length());
404 line.setPosition(QPointF(0, h));
405 h += fontMetrics()->lineSpacing();
410 // NOTE: This method is not threadsafe and not reentrant!
411 // (RegExps are not constant while matching, and they are static here for efficiency)
412 QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() const {
414 static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)");
415 static QString urlChars("(?:[,.;:]*[\\w\\-~@/?&=+$()!%#*|{}\\[\\]])");
417 static QRegExp regExp[] = {
419 // QRegExp(QString("((?:https?://|s?ftp://|irc://|mailto:|www\\.)%1+|%1+\\.[a-z]{2,4}(?:?=/%1+|\\b))%2").arg(urlChars, urlEnd)),
420 QRegExp(QString("((?:(?:https?://|s?ftp://|irc://|gopher://|mailto:)|www)%1+)%2").arg(urlChars, urlEnd), Qt::CaseInsensitive),
423 // We don't match for channel names starting with + or &, because that gives us a lot of false positives.
424 QRegExp("((?:#|![A-Z0-9]{5})[^,:\\s]+(?::[^,:\\s]+)?)\\b", Qt::CaseInsensitive)
426 // TODO: Nicks, we'll need a filtering for only matching known nicknames further down if we do this
429 static const int regExpCount = 2; // number of regexps in the array above
431 qint16 matches[] = { 0, 0, 0 };
432 qint16 matchEnd[] = { 0, 0, 0 };
434 QString str = data(ChatLineModel::DisplayRole).toString();
436 QList<Clickable> result;
443 minidx = str.length();
444 for(int i = 0; i < regExpCount; i++) {
445 if(matches[i] < 0 || matchEnd[i] > str.length()) continue;
446 if(idx >= matchEnd[i]) {
447 matches[i] = str.indexOf(regExp[i], qMax(matchEnd[i], idx));
448 if(matches[i] >= 0) matchEnd[i] = matches[i] + regExp[i].cap(1).length();
450 if(matches[i] >= 0 && matches[i] < minidx) {
456 idx = matchEnd[type];
457 QString match = str.mid(matches[type], matchEnd[type] - matches[type]);
458 if(type == Clickable::Url && str.at(idx-1) == ')') { // special case: closing paren only matches if we had an open one
459 if(!match.contains('(')) {
464 if(type == Clickable::Channel) {
465 // don't make clickable if it could be a #number
466 if(QRegExp("^#\\d+$").exactMatch(match))
469 result.append(Clickable((Clickable::Type)type, matches[type], matchEnd[type] - matches[type]));
474 if(!result.isEmpty()) qDebug() << str;
475 foreach(Clickable click, result) {
476 qDebug() << str.mid(click.start, click.length);
482 ContentsChatItem::Clickable ContentsChatItem::clickableAt(const QPointF &pos) const {
483 qint16 idx = posToCursor(pos);
484 for(int i = 0; i < privateData()->clickables.count(); i++) {
485 Clickable click = privateData()->clickables.at(i);
486 if(idx >= click.start && idx < click.start + click.length)
492 QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const {
493 // mark a clickable if hovered upon
494 QVector<QTextLayout::FormatRange> fmt;
495 if(privateData()->currentClickable.isValid()) {
496 Clickable click = privateData()->currentClickable;
497 QTextLayout::FormatRange f;
498 f.start = click.start;
499 f.length = click.length;
500 f.format.setFontUnderline(true);
506 void ContentsChatItem::endHoverMode() {
508 if(privateData()->currentClickable.isValid()) {
509 setCursor(Qt::ArrowCursor);
510 privateData()->currentClickable = Clickable();
517 void ContentsChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode) {
518 if(clickMode == ChatScene::SingleClick) {
519 Clickable click = clickableAt(pos);
520 if(click.isValid()) {
521 QString str = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
524 if(!str.contains("://"))
525 str = "http://" + str;
526 QDesktopServices::openUrl(QUrl::fromEncoded(str.toUtf8(), QUrl::TolerantMode));
528 case Clickable::Channel: {
529 NetworkId networkId = Client::networkModel()->networkId(data(MessageModel::BufferIdRole).value<BufferId>());
530 BufferId bufId = Client::networkModel()->bufferId(networkId, str);
531 if(bufId.isValid()) {
532 QModelIndex targetIdx = Client::networkModel()->bufferIndex(bufId);
533 Client::bufferModel()->switchToBuffer(bufId);
534 if(!targetIdx.data(NetworkModel::ItemActiveRole).toBool())
535 Client::userInput(BufferInfo::fakeStatusBuffer(networkId), QString("/JOIN %1").arg(str));
537 Client::userInput(BufferInfo::fakeStatusBuffer(networkId), QString("/JOIN %1").arg(str));
544 } else if(clickMode == ChatScene::DoubleClick) {
545 chatScene()->setSelectingItem(this);
546 setSelectionMode(PartialSelection);
547 Clickable click = clickableAt(pos);
548 if(click.isValid()) {
549 setSelectionStart(click.start);
550 setSelectionEnd(click.start + click.length);
552 // find word boundary
553 QString str = data(ChatLineModel::DisplayRole).toString();
554 qint16 cursor = posToCursor(pos);
555 qint16 start = str.lastIndexOf(QRegExp("\\W"), cursor) + 1;
556 qint16 end = qMin(str.indexOf(QRegExp("\\W"), cursor), str.length());
557 if(end < 0) end = str.length();
558 setSelectionStart(start);
559 setSelectionEnd(end);
562 } else if(clickMode == ChatScene::TripleClick) {
563 setSelection(PartialSelection, 0, data(ChatLineModel::DisplayRole).toString().length());
565 ChatItem::handleClick(pos, clickMode);
568 void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
569 // mouse move events always mean we're not hovering anymore...
571 ChatItem::mouseMoveEvent(event);
574 void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
579 void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
580 bool onClickable = false;
581 Clickable click = clickableAt(event->pos());
582 if(click.isValid()) {
583 if(click.type == Clickable::Url) {
585 showWebPreview(click);
586 } else if(click.type == Clickable::Channel) {
587 QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
588 // don't make clickable if it's our own name
589 BufferId myId = data(MessageModel::BufferIdRole).value<BufferId>();
590 if(Client::networkModel()->bufferName(myId) != name)
594 setCursor(Qt::PointingHandCursor);
595 privateData()->currentClickable = click;
600 if(!onClickable) endHoverMode();
604 void ContentsChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos) {
605 if(privateData()->currentClickable.isValid()) {
606 Clickable click = privateData()->currentClickable;
609 privateData()->activeClickable = click;
610 menu->addAction(SmallIcon("edit-copy"), tr("Copy Link Address"),
611 &_actionProxy, SLOT(copyLinkToClipboard()))->setData(QVariant::fromValue<void *>(this));
613 case Clickable::Channel: {
614 // Hide existing menu actions, they confuse us when right-clicking on a clickable
615 foreach(QAction *action, menu->actions())
616 action->setVisible(false);
617 QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
618 Client::mainUi()->actionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>(), name);
625 // Buffer-specific actions
626 ChatItem::addActionsToMenu(menu, pos);
630 void ContentsChatItem::copyLinkToClipboard() {
631 Clickable click = privateData()->activeClickable;
632 if(click.isValid() && click.type == Clickable::Url) {
633 QString url = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
634 if(!url.contains("://"))
635 url = "http://" + url;
636 chatScene()->stringToClipboard(url);
640 /******** WEB PREVIEW *****************************************************************************/
642 void ContentsChatItem::showWebPreview(const Clickable &click) {
648 QTextLine line = layout.lineForTextPosition(click.start);
649 qreal x = line.cursorToX(click.start);
650 qreal width = line.cursorToX(click.start + click.length) - x;
651 qreal height = line.height();
652 qreal y = height * line.lineNumber();
654 QPointF topLeft = scenePos() + QPointF(x, y);
655 QRectF urlRect = QRectF(topLeft.x(), topLeft.y(), width, height);
657 QString url = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
658 if(!url.contains("://"))
659 url = "http://" + url;
660 chatScene()->loadWebPreview(this, url, urlRect);
664 void ContentsChatItem::clearWebPreview() {
666 chatScene()->clearWebPreview(this);
670 /*************************************************************************************************/
672 ContentsChatItem::WrapColumnFinder::WrapColumnFinder(const ChatItem *_item)
674 wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
681 ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
684 qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn() {
685 if(wordidx >= wrapList.count())
689 qreal targetWidth = lineCount * item->width() + choppedTrailing;
691 qint16 start = wordidx;
692 qint16 end = wrapList.count() - 1;
694 // check if the whole line fits
695 if(wrapList.at(end).endX <= targetWidth) // || start == end)
698 // check if we have a very long word that needs inter word wrap
699 if(wrapList.at(start).endX > targetWidth) {
700 if(!line.isValid()) {
701 item->initLayoutHelper(&layout, QTextOption::NoWrap);
702 layout.beginLayout();
703 line = layout.createLine();
706 return line.xToCursor(targetWidth, QTextLine::CursorOnCharacter);
710 if(start + 1 == end) {
712 const ChatLineModel::Word &lastWord = wrapList.at(start); // the last word we were able to squeeze in
714 // both cases should be cought preliminary
715 Q_ASSERT(lastWord.endX <= targetWidth); // ensure that "start" really fits in
716 Q_ASSERT(end < wrapList.count()); // ensure that start isn't the last word
718 choppedTrailing += lastWord.trailing - (targetWidth - lastWord.endX);
719 return wrapList.at(wordidx).start;
722 qint16 pivot = (end + start) / 2;
723 if(wrapList.at(pivot).endX > targetWidth) {
733 /*************************************************************************************************/