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 "contextmenuactionprovider.h"
36 #include "iconloader.h"
39 #include "qtuistyle.h"
41 ChatItem::ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent)
42 : QGraphicsItem(parent),
43 _boundingRect(0, 0, width, height),
44 _selectionMode(NoSelection),
47 setAcceptHoverEvents(true);
52 QVariant ChatItem::data(int role) const {
53 QModelIndex index = model()->index(row(), column());
54 if(!index.isValid()) {
55 qWarning() << "ChatItem::data(): model index is invalid!" << index;
58 return model()->data(index, role);
61 qint16 ChatItem::posToCursor(const QPointF &pos) const {
62 if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
63 if(pos.y() < 0) return 0;
67 for(int l = layout.lineCount() - 1; l >= 0; l--) {
68 QTextLine line = layout.lineAt(l);
69 if(pos.y() >= line.y()) {
70 return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
76 void ChatItem::initLayoutHelper(QTextLayout *layout, QTextOption::WrapMode wrapMode, Qt::Alignment alignment) const {
79 layout->setText(data(MessageModel::DisplayRole).toString());
82 option.setWrapMode(wrapMode);
83 option.setAlignment(alignment);
84 layout->setTextOption(option);
86 QList<QTextLayout::FormatRange> formatRanges
87 = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length(), data(ChatLineModel::MsgLabelRole).toUInt());
88 layout->setAdditionalFormats(formatRanges);
91 void ChatItem::doLayout(QTextLayout *layout) const {
93 layout->beginLayout();
95 QTextLine line = layout->createLine();
98 line.setLineWidth(width());
99 line.setPosition(QPointF(0, h));
105 void ChatItem::paintBackground(QPainter *painter) {
106 painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
109 if(_selectionMode == FullSelection)
110 bgBrush = data(ChatLineModel::SelectedBackgroundRole);
112 bgBrush = data(ChatLineModel::BackgroundRole);
113 if(bgBrush.isValid())
114 painter->fillRect(boundingRect(), bgBrush.value<QBrush>());
117 // NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
118 // This is a deliberate trade-off. (-> selectFmt creation, data() call)
119 void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
120 Q_UNUSED(option); Q_UNUSED(widget);
121 paintBackground(painter);
125 layout.draw(painter, QPointF(0,0), selectionFormats(), boundingRect());
127 // layout()->draw(painter, QPointF(0,0), formats, boundingRect());
130 // uncomment partially or all of the following stuff:
132 // 0) alternativ painter color for debug stuff
134 // painter->setPen(Qt::red);
136 // painter->setPen(Qt::blue);
137 // 1) draw wordwrap points in the first line
138 // if(column() == 2) {
139 // ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
140 // foreach(ChatLineModel::Word word, wrapList) {
141 // if(word.endX > width())
143 // painter->drawLine(word.endX, 0, word.endX, height());
146 // 2) draw MsgId over the time column
147 // if(column() == 0) {
148 // QString msgIdString = QString::number(data(MessageModel::MsgIdRole).value<MsgId>().toInt());
149 // QPointF bottomPoint = boundingRect().bottomLeft();
150 // bottomPoint.ry() -= 2;
151 // painter->drawText(bottomPoint, msgIdString);
153 // 3) draw bounding rect
154 // painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
157 QVector<QTextLayout::FormatRange> ChatItem::selectionFormats() const {
159 return QVector<QTextLayout::FormatRange>();
162 if(_selectionMode == FullSelection) {
164 end = data(MessageModel::DisplayRole).toString().length();
166 start = qMin(_selectionStart, _selectionEnd);
167 end = qMax(_selectionStart, _selectionEnd);
170 UiStyle::FormatList fmtList = data(MessageModel::FormatRole).value<UiStyle::FormatList>();
172 while(fmtList.count() >=2 && fmtList.at(1).first <= start)
173 fmtList.removeFirst();
175 fmtList.first().first = start;
177 while(fmtList.count() >= 2 && fmtList.last().first >= end)
178 fmtList.removeLast();
180 return QtUi::style()->toTextLayoutList(fmtList, end, UiStyle::Selected|data(ChatLineModel::MsgLabelRole).toUInt()).toVector();
183 bool ChatItem::hasSelection() const {
184 if(_selectionMode == NoSelection)
186 if(_selectionMode == FullSelection)
189 return _selectionStart != _selectionEnd;
192 QString ChatItem::selection() const {
193 if(_selectionMode == FullSelection)
194 return data(MessageModel::DisplayRole).toString();
195 if(_selectionMode == PartialSelection)
196 return data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
200 void ChatItem::setSelection(SelectionMode mode, qint16 start, qint16 end) {
201 _selectionMode = mode;
202 _selectionStart = start;
207 void ChatItem::setFullSelection() {
208 if(_selectionMode != FullSelection) {
209 _selectionMode = FullSelection;
214 void ChatItem::clearSelection() {
215 if(_selectionMode != NoSelection) {
216 _selectionMode = NoSelection;
221 void ChatItem::continueSelecting(const QPointF &pos) {
222 _selectionMode = PartialSelection;
223 _selectionEnd = posToCursor(pos);
227 bool ChatItem::isPosOverSelection(const QPointF &pos) const {
228 if(_selectionMode == FullSelection)
230 if(_selectionMode == PartialSelection) {
231 int cursor = posToCursor(pos);
232 return cursor >= qMin(_selectionStart, _selectionEnd) && cursor <= qMax(_selectionStart, _selectionEnd);
237 QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
238 QList<QRectF> resultList;
239 const QAbstractItemModel *model_ = model();
243 QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
244 QList<int> indexList;
245 int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
246 while(searchIdx != -1) {
247 indexList << searchIdx;
248 searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
253 foreach(int idx, indexList) {
254 QTextLine line = layout.lineForTextPosition(idx);
255 qreal x = line.cursorToX(idx);
256 qreal width = line.cursorToX(idx + searchWord.count()) - x;
257 qreal height = line.height();
258 qreal y = height * line.lineNumber();
259 resultList << QRectF(x, y, width, height);
265 void ChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode) {
266 // single clicks are already handled by the scene (for clearing the selection)
267 if(clickMode == ChatScene::DragStartClick) {
268 chatScene()->setSelectingItem(this);
269 _selectionStart = _selectionEnd = posToCursor(pos);
270 _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
275 void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
276 if(event->buttons() == Qt::LeftButton) {
277 if(contains(event->pos())) {
278 qint16 end = posToCursor(event->pos());
279 if(end != _selectionEnd) {
281 _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
286 chatScene()->startGlobalSelection(this, event->pos());
294 void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
295 if(event->buttons() == Qt::LeftButton)
301 void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
302 if(_selectionMode != NoSelection && event->button() == Qt::LeftButton) {
303 chatScene()->selectionToClipboard(QClipboard::Selection);
309 void ChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos) {
312 GraphicalUi::contextMenuActionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>());
315 // ************************************************************
317 // ************************************************************
319 void SenderChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
320 Q_UNUSED(option); Q_UNUSED(widget);
321 paintBackground(painter);
325 qreal layoutWidth = layout.minimumWidth();
327 if(chatScene()->senderCutoffMode() == ChatScene::CutoffLeft)
328 offset = qMin(width() - layoutWidth, (qreal)0);
330 offset = qMax(layoutWidth - width(), (qreal)0);
332 if(layoutWidth > width()) {
333 // Draw a nice gradient for longer items
334 // Qt's text drawing with a gradient brush sucks, so we use an alpha-channeled pixmap instead
335 QPixmap pixmap(layout.boundingRect().toRect().size());
336 pixmap.fill(Qt::transparent);
337 QPainter pixPainter(&pixmap);
338 layout.draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), selectionFormats());
341 // Create alpha channel mask
342 QPixmap mask(pixmap.size());
343 QPainter maskPainter(&mask);
344 QLinearGradient gradient;
346 gradient.setStart(0, 0);
347 gradient.setFinalStop(12, 0);
348 gradient.setColorAt(0, Qt::black);
349 gradient.setColorAt(1, Qt::white);
351 gradient.setStart(width()-10, 0);
352 gradient.setFinalStop(width(), 0);
353 gradient.setColorAt(0, Qt::white);
354 gradient.setColorAt(1, Qt::black);
356 maskPainter.fillRect(boundingRect(), gradient);
357 pixmap.setAlphaChannel(mask);
358 painter->drawPixmap(0, 0, pixmap);
360 layout.draw(painter, QPointF(0,0), selectionFormats(), boundingRect());
364 // ************************************************************
366 // ************************************************************
368 ContentsChatItem::ActionProxy ContentsChatItem::_actionProxy;
370 ContentsChatItem::ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent)
371 : ChatItem(0, 0, pos, parent),
374 setGeometryByWidth(width);
377 QFontMetricsF *ContentsChatItem::fontMetrics() const {
378 return QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
381 ContentsChatItem::~ContentsChatItem() {
385 ContentsChatItemPrivate *ContentsChatItem::privateData() const {
387 ContentsChatItem *that = const_cast<ContentsChatItem *>(this);
388 that->_data = new ContentsChatItemPrivate(findClickables(), that);
393 qreal ContentsChatItem::setGeometryByWidth(qreal w) {
395 //qDebug() << Q_FUNC_INFO << "Geometry change requested with identical width!";
397 // We use this for reloading layout info as well
399 prepareGeometryChange();
403 setHeight(layout.boundingRect().height());
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("((?:(?:mailto:|\\w+://)|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] = regExp[i].indexIn(str, 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 GraphicalUi::contextMenuActionProvider()->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 /*************************************************************************************************/