1/***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
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. *
9 * *
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. *
14 * *
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#include <QApplication>
22#include <QClipboard>
23#include <QDesktopServices>
24#include <QFontMetrics>
25#include <QGraphicsSceneMouseEvent>
26#include <QPainter>
27#include <QPalette>
28#include <QTextLayout>
29#include <QMenu>
30
31#include "buffermodel.h"
32#include "bufferview.h"
33#include "chatitem.h"
34#include "chatline.h"
35#include "chatlinemodel.h"
36#include "chatview.h"
37#include "contextmenuactionprovider.h"
38#include "iconloader.h"
39#include "mainwin.h"
40#include "qtui.h"
41#include "qtuistyle.h"
42
43ChatItem::ChatItem(const QRectF &boundingRect, ChatLine *parent)
44 : _parent(parent),
45 _boundingRect(boundingRect),
46 _selectionMode(NoSelection),
47 _selectionStart(-1),
48 _cachedLayout(0)
49{
50}
51
52
53ChatItem::~ChatItem()
54{
55 delete _cachedLayout;
56}
57
58
59ChatLine *ChatItem::chatLine() const
60{
61 return _parent;
62}
63
64
65ChatScene *ChatItem::chatScene() const
66{
67 return chatLine()->chatScene();
68}
69
70
71ChatView *ChatItem::chatView() const
72{
73 return chatScene()->chatView();
74}
75
76
77const QAbstractItemModel *ChatItem::model() const
78{
79 return chatLine()->model();
80}
81
82
83int ChatItem::row() const
84{
85 return chatLine()->row();
86}
87
88
89QPointF ChatItem::mapToLine(const QPointF &p) const
90{
91 return p + pos();
92}
93
94
95QPointF ChatItem::mapFromLine(const QPointF &p) const
96{
97 return p - pos();
98}
99
100
101// relative to the ChatLine
102QPointF ChatItem::mapToScene(const QPointF &p) const
103{
104 return chatLine()->mapToScene(p /* + pos() */);
105}
106
107
108QPointF ChatItem::mapFromScene(const QPointF &p) const
109{
110 return chatLine()->mapFromScene(p) /* - pos() */;
111}
112
113
114QVariant ChatItem::data(int role) const
115{
116 QModelIndex index = model()->index(row(), column());
117 if (!index.isValid()) {
118 qWarning() << "ChatItem::data(): model index is invalid!" << index;
119 return QVariant();
120 }
121 return model()->data(index, role);
122}
123
124
125QTextLayout *ChatItem::layout() const
126{
127 if (_cachedLayout)
128 return _cachedLayout;
129
130 _cachedLayout = new QTextLayout;
131 initLayout(_cachedLayout);
132 chatView()->setHasCache(chatLine());
133 return _cachedLayout;
134}
135
136
137void ChatItem::clearCache()
138{
139 delete _cachedLayout;
140 _cachedLayout = 0;
141}
142
143
144void ChatItem::initLayoutHelper(QTextLayout *layout, QTextOption::WrapMode wrapMode, Qt::Alignment alignment) const
145{
146 Q_ASSERT(layout);
147
148 layout->setText(data(MessageModel::DisplayRole).toString());
149
150 QTextOption option;
151 option.setWrapMode(wrapMode);
152 option.setAlignment(alignment);
153 layout->setTextOption(option);
154
155 QList<QTextLayout::FormatRange> formatRanges
156 = QtUi::style()->toTextLayoutList(formatList(), layout->text().length(), data(ChatLineModel::MsgLabelRole).toUInt());
157 layout->setAdditionalFormats(formatRanges);
158}
159
160
161void ChatItem::initLayout(QTextLayout *layout) const
162{
163 initLayoutHelper(layout, QTextOption::NoWrap);
164 doLayout(layout);
165}
166
167
168void ChatItem::doLayout(QTextLayout *layout) const
169{
170 layout->beginLayout();
171 QTextLine line = layout->createLine();
172 if (line.isValid()) {
173 line.setLineWidth(width());
174 line.setPosition(QPointF(0, 0));
175 }
176 layout->endLayout();
177}
178
179
180UiStyle::FormatList ChatItem::formatList() const
181{
182 return data(MessageModel::FormatRole).value<UiStyle::FormatList>();
183}
184
185
186qint16 ChatItem::posToCursor(const QPointF &posInLine) const
187{
188 QPointF pos = mapFromLine(posInLine);
189 if (pos.y() > height())
190 return data(MessageModel::DisplayRole).toString().length();
191 if (pos.y() < 0)
192 return 0;
193
194 for (int l = layout()->lineCount() - 1; l >= 0; l--) {
195 QTextLine line = layout()->lineAt(l);
196 if (pos.y() >= line.y()) {
197 return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
198 }
199 }
200 return 0;
201}
202
203
204void ChatItem::paintBackground(QPainter *painter)
205{
206 QVariant bgBrush;
207 if (_selectionMode == FullSelection)
208 bgBrush = data(ChatLineModel::SelectedBackgroundRole);
209 else
210 bgBrush = data(ChatLineModel::BackgroundRole);
211 if (bgBrush.isValid())
212 painter->fillRect(boundingRect(), bgBrush.value<QBrush>());
213}
214
215
216// NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
217// This is a deliberate trade-off. (-> selectFmt creation, data() call)
218void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
219{
220 Q_UNUSED(option); Q_UNUSED(widget);
221 painter->save();
222 painter->setClipRect(boundingRect());
223 paintBackground(painter);
224
225 layout()->draw(painter, pos(), additionalFormats(), boundingRect());
226
227 // layout()->draw(painter, QPointF(0,0), formats, boundingRect());
228
229 // Debuging Stuff
230 // uncomment partially or all of the following stuff:
231 //
232 // 0) alternativ painter color for debug stuff
233// if(row() % 2)
234// painter->setPen(Qt::red);
235// else
236// painter->setPen(Qt::blue);
237// 1) draw wordwrap points in the first line
238// if(column() == 2) {
239// ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
240// foreach(ChatLineModel::Word word, wrapList) {
241// if(word.endX > width())
242// break;
243// painter->drawLine(word.endX, 0, word.endX, height());
244// }
245// }
246// 2) draw MsgId over the time column
247// if(column() == 0) {
248// QString msgIdString = QString::number(data(MessageModel::MsgIdRole).value<MsgId>().toInt());
249// QPointF bottomPoint = boundingRect().bottomLeft();
250// bottomPoint.ry() -= 2;
251// painter->drawText(bottomPoint, msgIdString);
252// }
253// 3) draw bounding rect
254// painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
255
256 painter->restore();
257}
258
259
260void ChatItem::overlayFormat(UiStyle::FormatList &fmtList, int start, int end, quint32 overlayFmt) const
261{
262 for (int i = 0; i < fmtList.count(); i++) {
263 int fmtStart = fmtList.at(i).first;
264 int fmtEnd = (i < fmtList.count()-1 ? fmtList.at(i+1).first : data(MessageModel::DisplayRole).toString().length());
265
266 if (fmtEnd <= start)
267 continue;
268 if (fmtStart >= end)
269 break;
270
271 // split the format if necessary
272 if (fmtStart < start) {
273 fmtList.insert(i, fmtList.at(i));
274 fmtList[++i].first = start;
275 }
276 if (end < fmtEnd) {
277 fmtList.insert(i, fmtList.at(i));
278 fmtList[i+1].first = end;
279 }
280
281 fmtList[i].second |= overlayFmt;
282 }
283}
284
285
286QVector<QTextLayout::FormatRange> ChatItem::additionalFormats() const
287{
288 return selectionFormats();
289}
290
291
292QVector<QTextLayout::FormatRange> ChatItem::selectionFormats() const
293{
294 if (!hasSelection())
295 return QVector<QTextLayout::FormatRange>();
296
297 int start, end;
298 if (_selectionMode == FullSelection) {
299 start = 0;
300 end = data(MessageModel::DisplayRole).toString().length();
301 }
302 else {
303 start = qMin(_selectionStart, _selectionEnd);
304 end = qMax(_selectionStart, _selectionEnd);
305 }
306
307 UiStyle::FormatList fmtList = formatList();
308
309 while (fmtList.count() > 1 && fmtList.at(1).first <= start)
310 fmtList.removeFirst();
311
312 fmtList.first().first = start;
313
314 while (fmtList.count() > 1 && fmtList.last().first >= end)
315 fmtList.removeLast();
316
317 return QtUi::style()->toTextLayoutList(fmtList, end, UiStyle::Selected|data(ChatLineModel::MsgLabelRole).toUInt()).toVector();
318}
319
320
321bool ChatItem::hasSelection() const
322{
323 if (_selectionMode == NoSelection)
324 return false;
325 if (_selectionMode == FullSelection)
326 return true;
327 // partial
328 return _selectionStart != _selectionEnd;
329}
330
331
332QString ChatItem::selection() const
333{
334 if (_selectionMode == FullSelection)
335 return data(MessageModel::DisplayRole).toString();
336 if (_selectionMode == PartialSelection)
337 return data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
338 return QString();
339}
340
341
342void ChatItem::setSelection(SelectionMode mode, qint16 start, qint16 end)
343{
344 _selectionMode = mode;
345 _selectionStart = start;
346 _selectionEnd = end;
347 chatLine()->update();
348}
349
350
351void ChatItem::setFullSelection()
352{
353 if (_selectionMode != FullSelection) {
354 _selectionMode = FullSelection;
355 chatLine()->update();
356 }
357}
358
359
360void ChatItem::clearSelection()
361{
362 if (_selectionMode != NoSelection) {
363 _selectionMode = NoSelection;
364 chatLine()->update();
365 }
366}
367
368
369void ChatItem::continueSelecting(const QPointF &pos)
370{
371 _selectionMode = PartialSelection;
372 _selectionEnd = posToCursor(pos);
373 chatLine()->update();
374}
375
376
377bool ChatItem::isPosOverSelection(const QPointF &pos) const
378{
379 if (_selectionMode == FullSelection)
380 return true;
381 if (_selectionMode == PartialSelection) {
382 int cursor = posToCursor(pos);
383 return cursor >= qMin(_selectionStart, _selectionEnd) && cursor <= qMax(_selectionStart, _selectionEnd);
384 }
385 return false;
386}
387
388
389QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive)
390{
391 QList<QRectF> resultList;
392 const QAbstractItemModel *model_ = model();
393 if (!model_)
394 return resultList;
395
396 QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
397 QList<int> indexList;
398 int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
399 while (searchIdx != -1) {
400 indexList << searchIdx;
401 searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
402 }
403
404 foreach(int idx, indexList) {
405 QTextLine line = layout()->lineForTextPosition(idx);
406 qreal x = line.cursorToX(idx);
407 qreal width = line.cursorToX(idx + searchWord.count()) - x;
408 qreal height = line.height();
409 qreal y = height * line.lineNumber();
410 resultList << QRectF(x, y, width, height);
411 }
412
413 return resultList;
414}
415
416
417void ChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode)
418{
419 // single clicks are already handled by the scene (for clearing the selection)
420 if (clickMode == ChatScene::DragStartClick) {
421 chatScene()->setSelectingItem(this);
422 _selectionStart = _selectionEnd = posToCursor(pos);
423 _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
424 chatLine()->update();
425 }
426}
427
428
429void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
430{
431 if (event->buttons() == Qt::LeftButton) {
432 if (boundingRect().contains(event->pos())) {
433 qint16 end = posToCursor(event->pos());
434 if (end != _selectionEnd) {
435 _selectionEnd = end;
436 _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
437 chatLine()->update();
438 }
439 }
440 else {
441 setFullSelection();
442 chatScene()->startGlobalSelection(this, event->pos());
443 }
444 event->accept();
445 }
446 else {
447 event->ignore();
448 }
449}
450
451
452void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
453{
454 if (event->buttons() == Qt::LeftButton)
455 event->accept();
456 else
457 event->ignore();
458}
459
460
461void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
462{
463 if (_selectionMode != NoSelection && event->button() == Qt::LeftButton) {
464 chatScene()->selectionToClipboard(QClipboard::Selection);
465 event->accept();
466 }
467 else
468 event->ignore();
469}
470
471
472void ChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos)
473{
474 Q_UNUSED(pos);
475
476 GraphicalUi::contextMenuActionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>());
477}
478
479
480// ************************************************************
481// SenderChatItem
482// ************************************************************
483
484void SenderChatItem::initLayout(QTextLayout *layout) const
485{
486 initLayoutHelper(layout, QTextOption::ManualWrap, Qt::AlignRight);
487 doLayout(layout);
488}
489
490
491void SenderChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
492{
493 Q_UNUSED(option); Q_UNUSED(widget);
494 painter->save();
495 painter->setClipRect(boundingRect());
496 paintBackground(painter);
497
498 qreal layoutWidth = layout()->minimumWidth();
499 qreal offset = 0;
500 if (chatScene()->senderCutoffMode() == ChatScene::CutoffLeft)
501 offset = qMin(width() - layoutWidth, (qreal)0);
502 else
503 offset = qMax(layoutWidth - width(), (qreal)0);
504
505 if (layoutWidth > width()) {
506 // Draw a nice gradient for longer items
507 // Qt's text drawing with a gradient brush sucks, so we use compositing instead
508 QPixmap pixmap(layout()->boundingRect().toRect().size());
509 pixmap.fill(Qt::transparent);
510
511 QPainter pixPainter(&pixmap);
512 layout()->draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), additionalFormats());
513
514 // Create alpha channel mask
515 QLinearGradient gradient;
516 if (offset < 0) {
517 gradient.setStart(0, 0);
518 gradient.setFinalStop(12, 0);
519 gradient.setColorAt(0, Qt::transparent);
520 gradient.setColorAt(1, Qt::white);
521 }
522 else {
523 gradient.setStart(width()-10, 0);
524 gradient.setFinalStop(width(), 0);
525 gradient.setColorAt(0, Qt::white);
526 gradient.setColorAt(1, Qt::transparent);
527 }
528 pixPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn); // gradient's alpha gets applied to the pixmap
529 pixPainter.fillRect(pixmap.rect(), gradient);
530 painter->drawPixmap(pos(), pixmap);
531 }
532 else {
533 layout()->draw(painter, pos(), additionalFormats(), boundingRect());
534 }
535 painter->restore();
536}
537
538
539void SenderChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode)
540{
541 if (clickMode == ChatScene::DoubleClick) {
542 BufferInfo curBufInfo = Client::networkModel()->bufferInfo(data(MessageModel::BufferIdRole).value<BufferId>());
543 QString nick = data(MessageModel::EditRole).toString();
544 // check if the nick is a valid ircUser
545 if (!nick.isEmpty() && Client::network(curBufInfo.networkId())->ircUser(nick))
546 Client::bufferModel()->switchToOrStartQuery(curBufInfo.networkId(), nick);
547 }
548 else
549 ChatItem::handleClick(pos, clickMode);
550}
551
552
553// ************************************************************
554// ContentsChatItem
555// ************************************************************
556
557ContentsChatItem::ActionProxy ContentsChatItem::_actionProxy;
558
559ContentsChatItem::ContentsChatItem(const QPointF &pos, const qreal &width, ChatLine *parent)
560 : ChatItem(QRectF(pos, QSizeF(width, 0)), parent),
561 _data(0)
562{
563 setPos(pos);
564 setGeometryByWidth(width);
565}
566
567
568QFontMetricsF *ContentsChatItem::fontMetrics() const
569{
570 return QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second, 0);
571}
572
573
574ContentsChatItem::~ContentsChatItem()
575{
576 delete _data;
577}
578
579
580void ContentsChatItem::clearCache()
581{
582 delete _data;
583 _data = 0;
584 ChatItem::clearCache();
585}
586
587
588ContentsChatItemPrivate *ContentsChatItem::privateData() const
589{
590 if (!_data) {
591 ContentsChatItem *that = const_cast<ContentsChatItem *>(this);
592 that->_data = new ContentsChatItemPrivate(ClickableList::fromString(data(ChatLineModel::DisplayRole).toString()), that);
593 }
594 return _data;
595}
596
597
598qreal ContentsChatItem::setGeometryByWidth(qreal w)
599{
600 // We use this for reloading layout info as well, so we can't bail out if the width doesn't change
601
602 // compute height
603 int lines = 1;
604 WrapColumnFinder finder(this);
605 while (finder.nextWrapColumn(w) > 0)
606 lines++;
607 qreal spacing = qMax(fontMetrics()->lineSpacing(), fontMetrics()->height()); // cope with negative leading()
608 qreal h = lines * spacing;
609 delete _data;
610 _data = 0;
611
612 if (w != width() || h != height())
613 setGeometry(w, h);
614
615 return h;
616}
617
618
619void ContentsChatItem::initLayout(QTextLayout *layout) const
620{
621 initLayoutHelper(layout, QTextOption::WrapAtWordBoundaryOrAnywhere);
622 doLayout(layout);
623}
624
625
626void ContentsChatItem::doLayout(QTextLayout *layout) const
627{
628 ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
629 if (!wrapList.count()) return; // empty chatitem
630
631 qreal h = 0;
632 qreal spacing = qMax(fontMetrics()->lineSpacing(), fontMetrics()->height()); // cope with negative leading()
633 WrapColumnFinder finder(this);
634 layout->beginLayout();
635 forever {
636 QTextLine line = layout->createLine();
637 if (!line.isValid())
638 break;
639
640 int col = finder.nextWrapColumn(width());
641 if (col < 0)
642 col = layout->text().length();
643 int num = col - line.textStart();
644
645 line.setNumColumns(num);
646
647 // Sometimes, setNumColumns will create a line that's too long (cf. Qt bug 238249)
648 // We verify this and try setting the width again, making it shorter each time until the lengths match.
649 // Dead fugly, but seems to work…
650 for (int i = line.textLength()-1; i >= 0 && line.textLength() > num; i--) {
651 line.setNumColumns(i);
652 }
653 if (num != line.textLength()) {
654 qWarning() << "WARNING: Layout engine couldn't workaround Qt bug 238249, please report!";
655 // qDebug() << num << line.textLength() << t.mid(line.textStart(), line.textLength()) << t.mid(line.textStart() + line.textLength());
656 }
657
658 line.setPosition(QPointF(0, h));
659 h += spacing;
660 }
661 layout->endLayout();
662}
663
664
665Clickable ContentsChatItem::clickableAt(const QPointF &pos) const
666{
667 return privateData()->clickables.atCursorPos(posToCursor(pos));
668}
669
670
671UiStyle::FormatList ContentsChatItem::formatList() const
672{
673 UiStyle::FormatList fmtList = ChatItem::formatList();
674 for (int i = 0; i < privateData()->clickables.count(); i++) {
675 Clickable click = privateData()->clickables.at(i);
676 if (click.type() == Clickable::Url) {
677 overlayFormat(fmtList, click.start(), click.start() + click.length(), UiStyle::Url);
678 }
679 }
680 return fmtList;
681}
682
683
684QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const
685{
686 QVector<QTextLayout::FormatRange> fmt = ChatItem::additionalFormats();
687 // mark a clickable if hovered upon
688 if (privateData()->currentClickable.isValid()) {
689 Clickable click = privateData()->currentClickable;
690 QTextLayout::FormatRange f;
691 f.start = click.start();
692 f.length = click.length();
693 f.format.setFontUnderline(true);
694 fmt.append(f);
695 }
696 return fmt;
697}
698
699
700void ContentsChatItem::endHoverMode()
701{
702 if (privateData()) {
703 if (privateData()->currentClickable.isValid()) {
704 chatLine()->unsetCursor();
705 privateData()->currentClickable = Clickable();
706 }
707 clearWebPreview();
708 chatLine()->update();
709 }
710}
711
712
713void ContentsChatItem::handleClick(const QPointF &pos, ChatScene::ClickMode clickMode)
714{
715 if (clickMode == ChatScene::SingleClick) {
716 qint16 idx = posToCursor(pos);
717 Clickable foo = privateData()->clickables.atCursorPos(idx);
718 if (foo.isValid()) {
719 NetworkId networkId = Client::networkModel()->networkId(data(MessageModel::BufferIdRole).value<BufferId>());
720 QString text = data(ChatLineModel::DisplayRole).toString();
721 foo.activate(networkId, text);
722 }
723 }
724 else if (clickMode == ChatScene::DoubleClick) {
725 chatScene()->setSelectingItem(this);
726 setSelectionMode(PartialSelection);
727 Clickable click = clickableAt(pos);
728 if (click.isValid()) {
729 setSelectionStart(click.start());
730 setSelectionEnd(click.start() + click.length());
731 }
732 else {
733 // find word boundary
734 QString str = data(ChatLineModel::DisplayRole).toString();
735 qint16 cursor = posToCursor(pos);
736 qint16 start = str.lastIndexOf(QRegExp("\\W"), cursor) + 1;
737 qint16 end = qMin(str.indexOf(QRegExp("\\W"), cursor), str.length());
738 if (end < 0) end = str.length();
739 setSelectionStart(start);
740 setSelectionEnd(end);
741 }
742 chatLine()->update();
743 }
744 else if (clickMode == ChatScene::TripleClick) {
745 setSelection(PartialSelection, 0, data(ChatLineModel::DisplayRole).toString().length());
746 }
747 ChatItem::handleClick(pos, clickMode);
748}
749
750
751void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
752{
753 // mouse move events always mean we're not hovering anymore...
754 endHoverMode();
755 ChatItem::mouseMoveEvent(event);
756}
757
758
759void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
760{
761 endHoverMode();
762 event->accept();
763}
764
765
766void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event)
767{
768 bool onClickable = false;
769 Clickable click = clickableAt(event->pos());
770 if (click.isValid()) {
771 if (click.type() == Clickable::Url) {
772 onClickable = true;
773 showWebPreview(click);
774 }
775 else if (click.type() == Clickable::Channel) {
776 QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
777 // don't make clickable if it's our own name
778 BufferId myId = data(MessageModel::BufferIdRole).value<BufferId>();
779 if (Client::networkModel()->bufferName(myId) != name)
780 onClickable = true;
781 }
782 if (onClickable) {
783 chatLine()->setCursor(Qt::PointingHandCursor);
784 privateData()->currentClickable = click;
785 chatLine()->update();
786 return;
787 }
788 }
789 if (!onClickable) endHoverMode();
790 event->accept();
791}
792
793
794void ContentsChatItem::addActionsToMenu(QMenu *menu, const QPointF &pos)
795{
796 if (privateData()->currentClickable.isValid()) {
797 Clickable click = privateData()->currentClickable;
798 switch (click.type()) {
799 case Clickable::Url:
800 privateData()->activeClickable = click;
801 menu->addAction(SmallIcon("edit-copy"), tr("Copy Link Address"),
802 &_actionProxy, SLOT(copyLinkToClipboard()))->setData(QVariant::fromValue<void *>(this));
803 break;
804 case Clickable::Channel:
805 {
806 // Remove existing menu actions, they confuse us when right-clicking on a clickable
807 menu->clear();
808 QString name = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
809 GraphicalUi::contextMenuActionProvider()->addActions(menu, chatScene()->filter(), data(MessageModel::BufferIdRole).value<BufferId>(), name);
810 break;
811 }
812 default:
813 break;
814 }
815 }
816 else {
817 // Buffer-specific actions
818 ChatItem::addActionsToMenu(menu, pos);
819 }
820}
821
822
823void ContentsChatItem::copyLinkToClipboard()
824{
825 Clickable click = privateData()->activeClickable;
826 if (click.isValid() && click.type() == Clickable::Url) {
827 QString url = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
828 if (!url.contains("://"))
829 url = "http://" + url;
830 chatScene()->stringToClipboard(url);
831 }
832}
833
834
835/******** WEB PREVIEW *****************************************************************************/
836
837void ContentsChatItem::showWebPreview(const Clickable &click)
838{
839#ifndef HAVE_WEBKIT
840 Q_UNUSED(click);
841#else
842 QTextLine line = layout()->lineForTextPosition(click.start());
843 qreal x = line.cursorToX(click.start());
844 qreal width = line.cursorToX(click.start() + click.length()) - x;
845 qreal height = line.height();
846 qreal y = height * line.lineNumber();
847
848 QPointF topLeft = mapToScene(pos()) + QPointF(x, y);
849 QRectF urlRect = QRectF(topLeft.x(), topLeft.y(), width, height);
850
851 QString urlstr = data(ChatLineModel::DisplayRole).toString().mid(click.start(), click.length());
852 if (!urlstr.contains("://"))
853 urlstr = "http://" + urlstr;
854 QUrl url = QUrl::fromEncoded(urlstr.toUtf8(), QUrl::TolerantMode);
855 chatScene()->loadWebPreview(this, url, urlRect);
856#endif
857}
858
859
860void ContentsChatItem::clearWebPreview()
861{
862#ifdef HAVE_WEBKIT
863 chatScene()->clearWebPreview(this);
864#endif
865}
866
867
868/*************************************************************************************************/
869
870ContentsChatItem::WrapColumnFinder::WrapColumnFinder(const ChatItem *_item)
871 : item(_item),
872 wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
873 wordidx(0),
874 lineCount(0),
875 choppedTrailing(0)
876{
877}
878
879
880ContentsChatItem::WrapColumnFinder::~WrapColumnFinder()
881{
882}
883
884
885qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn(qreal width)
886{
887 if (wordidx >= wrapList.count())
888 return -1;
889
890 lineCount++;
891 qreal targetWidth = lineCount * width + choppedTrailing;
892
893 qint16 start = wordidx;
894 qint16 end = wrapList.count() - 1;
895
896 // check if the whole line fits
897 if (wrapList.at(end).endX <= targetWidth) // || start == end)
898 return -1;
899
900 // check if we have a very long word that needs inter word wrap
901 if (wrapList.at(start).endX > targetWidth) {
902 if (!line.isValid()) {
903 item->initLayoutHelper(&layout, QTextOption::NoWrap);
904 layout.beginLayout();
905 line = layout.createLine();
906 layout.endLayout();
907 }
908 return line.xToCursor(targetWidth, QTextLine::CursorOnCharacter);
909 }
910
911 while (true) {
912 if (start + 1 == end) {
913 wordidx = end;
914 const ChatLineModel::Word &lastWord = wrapList.at(start); // the last word we were able to squeeze in
915
916 // both cases should be cought preliminary
917 Q_ASSERT(lastWord.endX <= targetWidth); // ensure that "start" really fits in
918 Q_ASSERT(end < wrapList.count()); // ensure that start isn't the last word
919
920 choppedTrailing += lastWord.trailing - (targetWidth - lastWord.endX);
921 return wrapList.at(wordidx).start;
922 }
923
924 qint16 pivot = (end + start) / 2;
925 if (wrapList.at(pivot).endX > targetWidth) {
926 end = pivot;
927 }
928 else {
929 start = pivot;
930 }
931 }
932 Q_ASSERT(false);
933 return -1;
934}
935
936
937/*************************************************************************************************/
938