1 /***************************************************************************
2 * Copyright (C) 2005-08 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 <QGraphicsSceneMouseEvent>
24 #include <QPersistentModelIndex>
29 #include "chatlinemodelitem.h"
30 #include "chatscene.h"
32 #include "clientbacklogmanager.h"
33 #include "columnhandleitem.h"
34 #include "messagefilter.h"
36 #include "qtuistyle.h"
37 #include "chatviewsettings.h"
38 #include "webpreviewitem.h"
40 const qreal minContentsWidth = 200;
42 ChatScene::ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent)
43 : QGraphicsScene(0, 0, width, 0, parent),
46 _singleBufferScene(false),
47 _sceneRect(0, 0, width, 0),
50 _cutoffMode(CutoffRight),
55 MessageFilter *filter = qobject_cast<MessageFilter*>(model);
57 _singleBufferScene = filter->isSingleBufferFilter();
60 ChatViewSettings defaultSettings;
61 int defaultFirstColHandlePos = defaultSettings.value("FirstColumnHandlePos", 80).toInt();
62 int defaultSecondColHandlePos = defaultSettings.value("SecondColumnHandlePos", 200).toInt();
64 ChatViewSettings viewSettings(this);
65 _firstColHandlePos = viewSettings.value("FirstColumnHandlePos", defaultFirstColHandlePos).toInt();
66 _secondColHandlePos = viewSettings.value("SecondColumnHandlePos", defaultSecondColHandlePos).toInt();
68 _firstColHandle = new ColumnHandleItem(QtUi::style()->firstColumnSeparator());
69 addItem(_firstColHandle);
70 _firstColHandle->setXPos(_firstColHandlePos);
71 connect(_firstColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(firstHandlePositionChanged(qreal)));
72 connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _firstColHandle, SLOT(sceneRectChanged(const QRectF &)));
74 _secondColHandle = new ColumnHandleItem(QtUi::style()->secondColumnSeparator());
75 addItem(_secondColHandle);
76 _secondColHandle->setXPos(_secondColHandlePos);
77 connect(_secondColHandle, SIGNAL(positionChanged(qreal)), this, SLOT(secondHandlePositionChanged(qreal)));
79 connect(this, SIGNAL(sceneRectChanged(const QRectF &)), _secondColHandle, SLOT(sceneRectChanged(const QRectF &)));
83 connect(model, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
84 this, SLOT(rowsInserted(const QModelIndex &, int, int)));
85 connect(model, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
86 this, SLOT(rowsAboutToBeRemoved(const QModelIndex &, int, int)));
88 if(model->rowCount() > 0)
89 rowsInserted(QModelIndex(), 0, model->rowCount() - 1);
92 webPreview.delayTimer.setSingleShot(true);
93 connect(&webPreview.delayTimer, SIGNAL(timeout()), this, SLOT(showWebPreviewEvent()));
94 //webPreview.deleteTimer.setInterval(600000);
95 webPreview.deleteTimer.setInterval(10000);
96 connect(&webPreview.deleteTimer, SIGNAL(timeout()), this, SLOT(deleteWebPreviewEvent()));
98 _showWebPreview = defaultSettings.showWebPreview();
99 defaultSettings.notify("ShowWebPreview", this, SLOT(showWebPreviewChanged()));
101 setItemIndexMethod(QGraphicsScene::NoIndex);
104 ChatScene::~ChatScene() {
107 void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
111 // QModelIndex sidx = model()->index(start, 2);
112 // QModelIndex eidx = model()->index(end, 2);
113 // qDebug() << "rowsInserted:";
115 // QModelIndex ssidx = model()->index(start - 1, 2);
116 // qDebug() << "Start--:" << start - 1 << ssidx.data(MessageModel::MsgIdRole).value<MsgId>()
117 // << ssidx.data(Qt::DisplayRole).toString();
119 // qDebug() << "Start:" << start << sidx.data(MessageModel::MsgIdRole).value<MsgId>()
120 // << sidx.data(Qt::DisplayRole).toString();
121 // qDebug() << "End:" << end << eidx.data(MessageModel::MsgIdRole).value<MsgId>()
122 // << eidx.data(Qt::DisplayRole).toString();
123 // if(end + 1 < model()->rowCount()) {
124 // QModelIndex eeidx = model()->index(end + 1, 2);
125 // qDebug() << "End++:" << end + 1 << eeidx.data(MessageModel::MsgIdRole).value<MsgId>()
126 // << eeidx.data(Qt::DisplayRole).toString();
131 qreal width = _sceneRect.width();
132 bool atBottom = (start == _lines.count());
133 bool atTop = !atBottom && (start == 0);
134 bool moveTop = false;
136 if(start < _lines.count()) {
137 y = _lines.value(start)->y();
138 } else if(atBottom && !_lines.isEmpty()) {
139 y = _lines.last()->y() + _lines.last()->height();
142 qreal contentsWidth = width - secondColumnHandle()->sceneRight();
143 qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
144 qreal timestampWidth = firstColumnHandle()->sceneLeft();
145 QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
146 QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
149 for(int i = end; i >= start; i--) {
150 ChatLine *line = new ChatLine(i, model(),
152 timestampWidth, senderWidth, contentsWidth,
153 senderPos, contentsPos);
155 line->setPos(0, y-h);
156 _lines.insert(start, line);
160 for(int i = start; i <= end; i++) {
161 ChatLine *line = new ChatLine(i, model(),
163 timestampWidth, senderWidth, contentsWidth,
164 senderPos, contentsPos);
165 line->setPos(0, y+h);
167 _lines.insert(i, line);
172 // update existing items
173 for(int i = end+1; i < _lines.count(); i++) {
174 _lines[i]->setRow(i);
178 if(_selectionStart >= 0) {
179 int offset = end - start + 1;
180 int oldStart = _selectionStart;
181 if(_selectionStart >= start)
182 _selectionStart += offset;
183 if(_selectionEnd >= start) {
184 _selectionEnd += offset;
185 if(_selectionStart == oldStart)
186 for(int i = start; i < start + offset; i++)
187 _lines[i]->setSelected(true);
189 if(_firstSelectionRow >= start)
190 _firstSelectionRow += offset;
193 // neither pre- or append means we have to do dirty work: move items...
195 int moveEnd = _lines.count() - 1;
197 if(!(atTop || atBottom)) {
198 // move top means: moving 0 to end (aka: end + 1)
199 // move top means: moving end + 1 to _lines.count() - 1 (aka: _lines.count() - (end + 1)
200 if(end + 1 < _lines.count() - end - 1) {
210 for(int i = moveStart; i <= moveEnd; i++) {
212 line->setPos(0, line->pos().y() + offset);
216 // check if all went right
217 Q_ASSERT(start == 0 || _lines.at(start - 1)->pos().y() + _lines.at(start - 1)->height() == _lines.at(start)->pos().y());
219 // if(_lines.at(start - 1)->pos().y() + _lines.at(start - 1)->height() != _lines.at(start)->pos().y()) {
220 // qDebug() << "lines:" << _lines.count() << "start:" << start << "end:" << end;
221 // qDebug() << "line[start - 1]:" << _lines.at(start - 1)->pos().y() << "+" << _lines.at(start - 1)->height() << "=" << _lines.at(start - 1)->pos().y() + _lines.at(start - 1)->height();
222 // qDebug() << "line[start]" << _lines.at(start)->pos().y();
223 // qDebug() << "needed moving:" << !(atTop || atBottom) << moveTop << moveStart << moveEnd << offset;
227 Q_ASSERT(end + 1 == _lines.count() || _lines.at(end)->pos().y() + _lines.at(end)->height() == _lines.at(end + 1)->pos().y());
228 // if(end + 1 < _lines.count()) {
229 // if(_lines.at(end)->pos().y() + _lines.at(end)->height() != _lines.at(end + 1)->pos().y()) {
230 // qDebug() << "lines:" << _lines.count() << "start:" << start << "end:" << end;
231 // qDebug() << "line[end]:" << _lines.at(end)->pos().y() << "+" << _lines.at(end)->height() << "=" << _lines.at(end)->pos().y() + _lines.at(end)->height();
232 // qDebug() << "line[end+1]" << _lines.at(end + 1)->pos().y();
233 // qDebug() << "needed moving:" << !(atTop || atBottom) << moveTop << moveStart << moveEnd << offset;
239 if(start < _firstLineRow) {
240 int prevFirstLineRow = _firstLineRow + (end - start + 1);
241 for(int i = end + 1; i < prevFirstLineRow; i++) {
242 _lines.at(i)->show();
245 // force new search for first proper line
249 if(atBottom || (!atTop && !moveTop)) {
250 emit lastLineChanged(_lines.last(), h);
254 void ChatScene::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
257 qreal h = 0; // total height of removed items;
259 bool atTop = (start == 0);
260 bool atBottom = (end == _lines.count() - 1);
261 bool moveTop = false;
265 int row = _selectingItem->row();
266 if(row >= start && row <= end)
270 // remove items from scene
271 QList<ChatLine *>::iterator lineIter = _lines.begin() + start;
272 int lineCount = start;
273 while(lineIter != _lines.end() && lineCount <= end) {
274 h += (*lineIter)->height();
276 lineIter = _lines.erase(lineIter);
280 // update rows of remaining chatlines
281 for(int i = start; i < _lines.count(); i++) {
282 _lines.at(i)->setRow(i);
286 if(_selectionStart >= 0) {
287 int offset = end - start + 1;
288 if(_selectionStart >= start)
289 _selectionStart = qMax(_selectionStart -= offset, start);
290 if(_selectionEnd >= start)
291 _selectionEnd -= offset;
292 if(_firstSelectionRow >= start)
293 _firstSelectionRow -= offset;
295 if(_selectionEnd < _selectionStart) {
296 _isSelecting = false;
297 _selectionStart = -1;
301 // neither removing at bottom or top means we have to move items...
302 if(!(atTop || atBottom)) {
305 int moveEnd = _lines.count() - 1;
306 if(start < _lines.count() - start) {
316 for(int i = moveStart; i <= moveEnd; i++) {
318 line->setPos(0, line->pos().y() + offset);
322 Q_ASSERT(start == 0 || start >= _lines.count() || _lines.at(start - 1)->pos().y() + _lines.at(start - 1)->height() == _lines.at(start)->pos().y());
325 // when searching for the first non-date-line we have to take into account that our
326 // model still contains the just removed lines so we cannot simply call updateSceneRect()
327 int numRows = model()->rowCount();
328 QModelIndex firstLineIdx;
330 bool needOffset = false;
333 if(_firstLineRow >= start && _firstLineRow <= end) {
334 _firstLineRow = end + 1;
337 firstLineIdx = model()->index(_firstLineRow, 0);
338 } while((Message::Type)(model()->data(firstLineIdx, MessageModel::TypeRole).toInt()) == Message::DayChange && _firstLineRow < numRows);
341 _firstLineRow -= end - start + 1;
345 void ChatScene::updateForViewport(qreal width, qreal height) {
346 _viewportHeight = height;
350 void ChatScene::setWidth(qreal width) {
351 if(width == _sceneRect.width())
354 // clock_t startT = clock();
356 // disabling the index while doing this complex updates is about
357 // 2 to 10 times faster!
358 //setItemIndexMethod(QGraphicsScene::NoIndex);
360 QList<ChatLine *>::iterator lineIter = _lines.end();
361 QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
362 qreal linePos = _sceneRect.y() + _sceneRect.height();
363 qreal contentsWidth = width - secondColumnHandle()->sceneRight();
364 while(lineIter != lineIterBegin) {
366 (*lineIter)->setGeometryByWidth(width, contentsWidth, linePos);
368 //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
370 updateSceneRect(width);
372 emit layoutChanged();
374 // clock_t endT = clock();
375 // qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
378 void ChatScene::firstHandlePositionChanged(qreal xpos) {
379 if(_firstColHandlePos == xpos)
382 _firstColHandlePos = xpos;
383 ChatViewSettings viewSettings(this);
384 viewSettings.setValue("FirstColumnHandlePos", _firstColHandlePos);
385 ChatViewSettings defaultSettings;
386 defaultSettings.setValue("FirstColumnHandlePos", _firstColHandlePos);
388 // clock_t startT = clock();
390 // disabling the index while doing this complex updates is about
391 // 2 to 10 times faster!
392 //setItemIndexMethod(QGraphicsScene::NoIndex);
394 QList<ChatLine *>::iterator lineIter = _lines.end();
395 QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
396 qreal timestampWidth = firstColumnHandle()->sceneLeft();
397 qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
398 QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
400 while(lineIter != lineIterBegin) {
402 (*lineIter)->setFirstColumn(timestampWidth, senderWidth, senderPos);
404 //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
408 // clock_t endT = clock();
409 // qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
412 void ChatScene::secondHandlePositionChanged(qreal xpos) {
413 if(_secondColHandlePos == xpos)
416 _secondColHandlePos = xpos;
417 ChatViewSettings viewSettings(this);
418 viewSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
419 ChatViewSettings defaultSettings;
420 defaultSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
422 // clock_t startT = clock();
424 // disabling the index while doing this complex updates is about
425 // 2 to 10 times faster!
426 //setItemIndexMethod(QGraphicsScene::NoIndex);
428 QList<ChatLine *>::iterator lineIter = _lines.end();
429 QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
430 qreal linePos = _sceneRect.y() + _sceneRect.height();
431 qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
432 qreal contentsWidth = _sceneRect.width() - secondColumnHandle()->sceneRight();
433 QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
434 while(lineIter != lineIterBegin) {
436 (*lineIter)->setSecondColumn(senderWidth, contentsWidth, contentsPos, linePos);
438 //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
442 emit layoutChanged();
444 // clock_t endT = clock();
445 // qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
448 void ChatScene::setHandleXLimits() {
449 _firstColHandle->setXLimits(0, _secondColHandle->sceneLeft());
450 _secondColHandle->setXLimits(_firstColHandle->sceneRight(), width() - minContentsWidth);
453 void ChatScene::setSelectingItem(ChatItem *item) {
454 if(_selectingItem) _selectingItem->clearSelection();
455 _selectingItem = item;
458 void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
459 _selectionStart = _selectionEnd = _firstSelectionRow = item->row();
460 _selectionStartCol = _selectionMinCol = item->column();
462 _lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
463 updateSelection(item->mapToScene(itemPos));
466 void ChatScene::updateSelection(const QPointF &pos) {
467 // This is somewhat hacky... we look at the contents item that is at the cursor's y position (ignoring x), since
468 // it has the full height. From this item, we can then determine the row index and hence the ChatLine.
469 ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(_secondColHandle->sceneRight() + 1, pos.y())));
470 if(!contentItem) return;
472 int curRow = contentItem->row();
474 if(pos.x() > _secondColHandle->sceneRight()) curColumn = ChatLineModel::ContentsColumn;
475 else if(pos.x() > _firstColHandlePos) curColumn = ChatLineModel::SenderColumn;
476 else curColumn = ChatLineModel::TimestampColumn;
478 ChatLineModel::ColumnType minColumn = (ChatLineModel::ColumnType)qMin(curColumn, _selectionStartCol);
479 if(minColumn != _selectionMinCol) {
480 _selectionMinCol = minColumn;
481 for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
482 _lines[l]->setSelected(true, minColumn);
485 int newstart = qMin(curRow, _firstSelectionRow);
486 int newend = qMax(curRow, _firstSelectionRow);
487 if(newstart < _selectionStart) {
488 for(int l = newstart; l < _selectionStart; l++)
489 _lines[l]->setSelected(true, minColumn);
491 if(newstart > _selectionStart) {
492 for(int l = _selectionStart; l < newstart; l++)
493 _lines[l]->setSelected(false);
495 if(newend > _selectionEnd) {
496 for(int l = _selectionEnd+1; l <= newend; l++)
497 _lines[l]->setSelected(true, minColumn);
499 if(newend < _selectionEnd) {
500 for(int l = newend+1; l <= _selectionEnd; l++)
501 _lines[l]->setSelected(false);
504 _selectionStart = newstart;
505 _selectionEnd = newend;
507 if(newstart == newend && minColumn == ChatLineModel::ContentsColumn) {
508 if(!_selectingItem) {
509 // _selectingItem has been removed already
512 _lines[curRow]->setSelected(false);
513 _isSelecting = false;
514 _selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
518 bool ChatScene::isScrollingAllowed() const {
522 // TODO: Handle clicks and single-item selections too
527 void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
528 if(_isSelecting && event->buttons() == Qt::LeftButton) {
529 updateSelection(event->scenePos());
530 emit mouseMoveWhileSelecting(event->scenePos());
533 QGraphicsScene::mouseMoveEvent(event);
537 void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
538 if(_selectionStart >= 0 && event->buttons() == Qt::LeftButton) {
539 for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
540 _lines[l]->setSelected(false);
542 _isSelecting = false;
543 _selectionStart = -1;
544 QGraphicsScene::mousePressEvent(event); // so we can start a new local selection
546 QGraphicsScene::mousePressEvent(event);
550 void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
551 if(_isSelecting && !event->buttons() & Qt::LeftButton) {
552 putToClipboard(selectionToString());
553 _isSelecting = false;
556 QGraphicsScene::mouseReleaseEvent(event);
560 void ChatScene::putToClipboard(const QString &selection) {
561 // TODO Configure clipboards
563 QApplication::clipboard()->setText(selection, QClipboard::Selection);
566 QApplication::clipboard()->setText(selection);
570 //!\brief Convert current selection to human-readable string.
571 QString ChatScene::selectionToString() const {
572 //TODO Make selection format configurable!
573 if(!_isSelecting) return QString();
574 int start = qMin(_selectionStart, _selectionEnd);
575 int end = qMax(_selectionStart, _selectionEnd);
576 if(start < 0 || end >= _lines.count()) {
577 qDebug() << "Invalid selection range:" << start << end;
581 for(int l = start; l <= end; l++) {
582 if(_selectionMinCol == ChatLineModel::TimestampColumn)
583 result += _lines[l]->item(ChatLineModel::TimestampColumn).data(MessageModel::DisplayRole).toString() + " ";
584 if(_selectionMinCol <= ChatLineModel::SenderColumn)
585 result += _lines[l]->item(ChatLineModel::SenderColumn).data(MessageModel::DisplayRole).toString() + " ";
586 result += _lines[l]->item(ChatLineModel::ContentsColumn).data(MessageModel::DisplayRole).toString() + "\n";
591 void ChatScene::requestBacklog() {
592 MessageFilter *filter = qobject_cast<MessageFilter*>(model());
594 return filter->requestBacklog();
598 int ChatScene::sectionByScenePos(int x) {
599 if(x < _firstColHandle->x())
600 return ChatLineModel::TimestampColumn;
601 if(x < _secondColHandle->x())
602 return ChatLineModel::SenderColumn;
604 return ChatLineModel::ContentsColumn;
607 void ChatScene::updateSceneRect(qreal width) {
608 if(_lines.isEmpty()) {
609 updateSceneRect(QRectF(0, 0, width, 0));
613 // we hide day change messages at the top by making the scene rect smaller
614 // and by calling QGraphicsItem::hide() on all leading day change messages
615 // the first one is needed to ensure proper scrollbar ranges
616 // the second for cases where the viewport is larger then the set scenerect
617 // (in this case the items are shown anyways)
618 if(_firstLineRow == -1) {
619 int numRows = model()->rowCount();
621 QModelIndex firstLineIdx;
622 while(_firstLineRow < numRows) {
623 firstLineIdx = model()->index(_firstLineRow, 0);
624 if((Message::Type)(model()->data(firstLineIdx, MessageModel::TypeRole).toInt()) != Message::DayChange)
626 _lines.at(_firstLineRow)->hide();
631 // the following call should be safe. If it crashes something went wrong during insert/remove
632 if(_firstLineRow < _lines.count()) {
633 ChatLine *firstLine = _lines.at(_firstLineRow);
634 ChatLine *lastLine = _lines.last();
635 updateSceneRect(QRectF(0, firstLine->pos().y(), width, lastLine->pos().y() + lastLine->height() - firstLine->pos().y()));
638 updateSceneRect(QRectF(0, 0, width, 0));
642 void ChatScene::updateSceneRect(const QRectF &rect) {
648 bool ChatScene::event(QEvent *e) {
649 if(e->type() == QEvent::ApplicationPaletteChange) {
650 _firstColHandle->setColor(QApplication::palette().windowText().color());
651 _secondColHandle->setColor(QApplication::palette().windowText().color());
653 return QGraphicsScene::event(e);
656 void ChatScene::loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect) {
665 if(webPreview.parentItem != parentItem)
666 webPreview.parentItem = parentItem;
668 if(webPreview.url != url) {
669 webPreview.url = url;
670 // load a new web view and delete the old one (if exists)
671 if(webPreview.previewItem && webPreview.previewItem->scene()) {
672 removeItem(webPreview.previewItem);
673 delete webPreview.previewItem;
675 webPreview.previewItem = new WebPreviewItem(url);
676 webPreview.delayTimer.start(2000);
677 webPreview.deleteTimer.stop();
678 } else if(webPreview.previewItem && !webPreview.previewItem->scene()) {
679 // we just have to readd the item to the scene
680 webPreview.delayTimer.start(2000);
681 webPreview.deleteTimer.stop();
683 if(webPreview.urlRect != urlRect) {
684 webPreview.urlRect = urlRect;
685 qreal previewY = urlRect.bottom();
686 qreal previewX = urlRect.x();
687 if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())
688 previewY = urlRect.y() - webPreview.previewItem->boundingRect().height();
690 if(previewX + webPreview.previewItem->boundingRect().width() > sceneRect().width())
691 previewX = sceneRect().right() - webPreview.previewItem->boundingRect().width();
693 webPreview.previewItem->setPos(previewX, previewY);
698 void ChatScene::showWebPreviewEvent() {
700 if(webPreview.previewItem)
701 addItem(webPreview.previewItem);
705 void ChatScene::clearWebPreview(ChatItem *parentItem) {
709 if(parentItem == 0 || webPreview.parentItem == parentItem) {
710 if(webPreview.previewItem && webPreview.previewItem->scene()) {
711 removeItem(webPreview.previewItem);
712 webPreview.deleteTimer.start();
714 webPreview.delayTimer.stop();
719 void ChatScene::deleteWebPreviewEvent() {
721 if(webPreview.previewItem) {
722 delete webPreview.previewItem;
723 webPreview.previewItem = 0;
725 webPreview.parentItem = 0;
726 webPreview.url = QString();
727 webPreview.urlRect = QRectF();
731 void ChatScene::showWebPreviewChanged() {
732 ChatViewSettings settings;
733 _showWebPreview = settings.showWebPreview();