+void ChatScene::setWidth(qreal width) {
+ if(width == _sceneRect.width())
+ return;
+
+ // clock_t startT = clock();
+
+ // disabling the index while doing this complex updates is about
+ // 2 to 10 times faster!
+ //setItemIndexMethod(QGraphicsScene::NoIndex);
+
+ QList<ChatLine *>::iterator lineIter = _lines.end();
+ QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
+ qreal linePos = _sceneRect.y() + _sceneRect.height();
+ qreal contentsWidth = width - secondColumnHandle()->sceneRight();
+ while(lineIter != lineIterBegin) {
+ lineIter--;
+ (*lineIter)->setGeometryByWidth(width, contentsWidth, linePos);
+ }
+ //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
+
+ updateSceneRect(width);
+ setHandleXLimits();
+
+// clock_t endT = clock();
+// qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
+}
+
+void ChatScene::firstHandlePositionChanged(qreal xpos) {
+ if(_firstColHandlePos == xpos)
+ return;
+
+ _firstColHandlePos = xpos;
+ ChatViewSettings viewSettings(this);
+ viewSettings.setValue("FirstColumnHandlePos", _firstColHandlePos);
+ ChatViewSettings defaultSettings;
+ defaultSettings.setValue("FirstColumnHandlePos", _firstColHandlePos);
+
+ // clock_t startT = clock();
+
+ // disabling the index while doing this complex updates is about
+ // 2 to 10 times faster!
+ //setItemIndexMethod(QGraphicsScene::NoIndex);
+
+ QList<ChatLine *>::iterator lineIter = _lines.end();
+ QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
+ qreal timestampWidth = firstColumnHandle()->sceneLeft();
+ qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+ QPointF senderPos(firstColumnHandle()->sceneRight(), 0);
+
+ while(lineIter != lineIterBegin) {
+ lineIter--;
+ (*lineIter)->setFirstColumn(timestampWidth, senderWidth, senderPos);
+ }
+ //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
+
+ setHandleXLimits();
+
+// clock_t endT = clock();
+// qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
+}
+
+void ChatScene::secondHandlePositionChanged(qreal xpos) {
+ if(_secondColHandlePos == xpos)
+ return;
+
+ _secondColHandlePos = xpos;
+ ChatViewSettings viewSettings(this);
+ viewSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
+ ChatViewSettings defaultSettings;
+ defaultSettings.setValue("SecondColumnHandlePos", _secondColHandlePos);
+
+ // clock_t startT = clock();
+
+ // disabling the index while doing this complex updates is about
+ // 2 to 10 times faster!
+ //setItemIndexMethod(QGraphicsScene::NoIndex);
+
+ QList<ChatLine *>::iterator lineIter = _lines.end();
+ QList<ChatLine *>::iterator lineIterBegin = _lines.begin();
+ qreal linePos = _sceneRect.y() + _sceneRect.height();
+ qreal senderWidth = secondColumnHandle()->sceneLeft() - firstColumnHandle()->sceneRight();
+ qreal contentsWidth = _sceneRect.width() - secondColumnHandle()->sceneRight();
+ QPointF contentsPos(secondColumnHandle()->sceneRight(), 0);
+ while(lineIter != lineIterBegin) {
+ lineIter--;
+ (*lineIter)->setSecondColumn(senderWidth, contentsWidth, contentsPos, linePos);
+ }
+ //setItemIndexMethod(QGraphicsScene::BspTreeIndex);
+
+ setHandleXLimits();
+
+// clock_t endT = clock();
+// qDebug() << "resized" << _lines.count() << "in" << (float)(endT - startT) / CLOCKS_PER_SEC << "sec";
+}
+
+void ChatScene::setHandleXLimits() {
+ _firstColHandle->setXLimits(0, _secondColHandle->sceneLeft());
+ _secondColHandle->setXLimits(_firstColHandle->sceneRight(), width() - minContentsWidth);
+}
+
+void ChatScene::setSelectingItem(ChatItem *item) {
+ if(_selectingItem) _selectingItem->clearSelection();
+ _selectingItem = item;
+}
+
+void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
+ _selectionStart = _selectionEnd = _lastSelectionRow = _firstSelectionRow = item->row();
+ _selectionStartCol = _selectionMinCol = item->column();
+ _isSelecting = true;
+ _lines[_selectionStart]->setSelected(true, (ChatLineModel::ColumnType)_selectionMinCol);
+ updateSelection(item->mapToScene(itemPos));
+}
+
+void ChatScene::updateSelection(const QPointF &pos) {
+ // This is somewhat hacky... we look at the contents item that is at the cursor's y position (ignoring x), since
+ // it has the full height. From this item, we can then determine the row index and hence the ChatLine.
+ ChatItem *contentItem = static_cast<ChatItem *>(itemAt(QPointF(_secondColHandle->sceneRight() + 1, pos.y())));
+ if(!contentItem) return;
+
+ int curRow = contentItem->row();
+ int curColumn;
+ if(pos.x() > _secondColHandle->sceneRight()) curColumn = ChatLineModel::ContentsColumn;
+ else if(pos.x() > _firstColHandlePos) curColumn = ChatLineModel::SenderColumn;
+ else curColumn = ChatLineModel::TimestampColumn;
+
+ ChatLineModel::ColumnType minColumn = (ChatLineModel::ColumnType)qMin(curColumn, _selectionStartCol);
+ if(minColumn != _selectionMinCol) {
+ _selectionMinCol = minColumn;
+ for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
+ _lines[l]->setSelected(true, minColumn);
+ }
+ }
+ int newstart = qMin(curRow, _firstSelectionRow);
+ int newend = qMax(curRow, _firstSelectionRow);
+ if(newstart < _selectionStart) {
+ for(int l = newstart; l < _selectionStart; l++)
+ _lines[l]->setSelected(true, minColumn);
+ }
+ if(newstart > _selectionStart) {
+ for(int l = _selectionStart; l < newstart; l++)
+ _lines[l]->setSelected(false);
+ }
+ if(newend > _selectionEnd) {
+ for(int l = _selectionEnd+1; l <= newend; l++)
+ _lines[l]->setSelected(true, minColumn);
+ }
+ if(newend < _selectionEnd) {
+ for(int l = newend+1; l <= _selectionEnd; l++)
+ _lines[l]->setSelected(false);
+ }
+
+ _selectionStart = newstart;
+ _selectionEnd = newend;
+ _lastSelectionRow = curRow;
+
+ if(newstart == newend && minColumn == ChatLineModel::ContentsColumn) {
+ if(!_selectingItem) {
+ qWarning() << "WARNING: ChatScene::updateSelection() has a null _selectingItem, this should never happen! Please report.";
+ return;
+ }
+ _lines[curRow]->setSelected(false);
+ _isSelecting = false;
+ _selectingItem->continueSelecting(_selectingItem->mapFromScene(pos));
+ }
+}
+
+void ChatScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+ if(_isSelecting && event->buttons() == Qt::LeftButton) {
+ updateSelection(event->scenePos());
+ event->accept();
+ } else {
+ QGraphicsScene::mouseMoveEvent(event);
+ }
+}
+
+void ChatScene::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+ if(event->buttons() == Qt::LeftButton && _selectionStart >= 0) {
+ for(int l = qMin(_selectionStart, _selectionEnd); l <= qMax(_selectionStart, _selectionEnd); l++) {
+ _lines[l]->setSelected(false);
+ }
+ _selectionStart = -1;
+ QGraphicsScene::mousePressEvent(event); // so we can start a new local selection
+ } else {
+ QGraphicsScene::mousePressEvent(event);
+ }
+}
+
+void ChatScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+ if(_isSelecting && !event->buttons() & Qt::LeftButton) {
+ putToClipboard(selectionToString());
+ _isSelecting = false;
+ event->accept();
+ } else {
+ QGraphicsScene::mouseReleaseEvent(event);
+ }
+}
+
+void ChatScene::putToClipboard(const QString &selection) {
+ // TODO Configure clipboards
+# ifdef Q_WS_X11
+ QApplication::clipboard()->setText(selection, QClipboard::Selection);
+# endif
+//# else
+ QApplication::clipboard()->setText(selection);
+//# endif
+}
+
+//!\brief Convert current selection to human-readable string.
+QString ChatScene::selectionToString() const {
+ //TODO Make selection format configurable!
+ if(!_isSelecting) return QString();
+ int start = qMin(_selectionStart, _selectionEnd);
+ int end = qMax(_selectionStart, _selectionEnd);
+ if(start < 0 || end >= _lines.count()) {
+ qDebug() << "Invalid selection range:" << start << end;
+ return QString();
+ }
+ QString result;
+ for(int l = start; l <= end; l++) {
+ if(_selectionMinCol == ChatLineModel::TimestampColumn)
+ result += _lines[l]->item(ChatLineModel::TimestampColumn).data(MessageModel::DisplayRole).toString() + " ";
+ if(_selectionMinCol <= ChatLineModel::SenderColumn)
+ result += _lines[l]->item(ChatLineModel::SenderColumn).data(MessageModel::DisplayRole).toString() + " ";
+ result += _lines[l]->item(ChatLineModel::ContentsColumn).data(MessageModel::DisplayRole).toString() + "\n";
+ }
+ return result;
+}
+
+void ChatScene::requestBacklog() {
+ MessageFilter *filter = qobject_cast<MessageFilter*>(model());
+ if(filter)
+ return filter->requestBacklog();
+ return;
+}
+
+int ChatScene::sectionByScenePos(int x) {
+ if(x < _firstColHandle->x())
+ return ChatLineModel::TimestampColumn;
+ if(x < _secondColHandle->x())
+ return ChatLineModel::SenderColumn;
+
+ return ChatLineModel::ContentsColumn;
+}
+
+void ChatScene::updateSceneRect(qreal width) {
+ if(_lines.isEmpty()) {
+ updateSceneRect(QRectF(0, 0, width, 0));
+ return;
+ }
+
+ // we hide day change messages at the top by making the scene rect smaller
+ // and by calling QGraphicsItem::hide() on all leading day change messages
+ // the first one is needed to ensure proper scrollbar ranges
+ // the second for cases where the viewport is larger then the set scenerect
+ // (in this case the items are shown anyways)
+ if(_firstLineRow == -1) {
+ int numRows = model()->rowCount();
+ _firstLineRow = 0;
+ QModelIndex firstLineIdx;
+ while(_firstLineRow < numRows) {
+ firstLineIdx = model()->index(_firstLineRow, 0);
+ if((Message::Type)(model()->data(firstLineIdx, MessageModel::TypeRole).toInt()) != Message::DayChange)
+ break;
+ _lines.at(_firstLineRow)->hide();
+ _firstLineRow++;
+ }
+ }
+
+ // the following call should be safe. If it crashes something went wrong during insert/remove
+ if(_firstLineRow < _lines.count()) {
+ ChatLine *firstLine = _lines.at(_firstLineRow);
+ ChatLine *lastLine = _lines.last();
+ updateSceneRect(QRectF(0, firstLine->pos().y(), width, lastLine->pos().y() + lastLine->height() - firstLine->pos().y()));
+ } else {
+ // empty scene rect
+ updateSceneRect(QRectF(0, 0, width, 0));
+ }
+}
+
+void ChatScene::updateSceneRect(const QRectF &rect) {
+ _sceneRect = rect;
+ setSceneRect(rect);
+ update();
+}
+
+void ChatScene::loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect) {
+#ifndef HAVE_WEBKIT
+ Q_UNUSED(parentItem)
+ Q_UNUSED(url)
+ Q_UNUSED(urlRect)
+#else
+ if(webPreview.parentItem != parentItem)
+ webPreview.parentItem = parentItem;
+
+ if(webPreview.url != url) {
+ webPreview.url = url;
+ // load a new web view and delete the old one (if exists)
+ if(webPreview.previewItem && webPreview.previewItem->scene()) {
+ removeItem(webPreview.previewItem);
+ delete webPreview.previewItem;
+ }
+ webPreview.previewItem = new WebPreviewItem(url);
+ webPreview.delayTimer.start(2000);
+ webPreview.deleteTimer.stop();
+ } else if(webPreview.previewItem && !webPreview.previewItem->scene()) {
+ // we just have to readd the item to the scene
+ webPreview.delayTimer.start(2000);
+ webPreview.deleteTimer.stop();
+ }
+ if(webPreview.urlRect != urlRect) {
+ webPreview.urlRect = urlRect;
+ qreal previewY = urlRect.bottom();
+ qreal previewX = urlRect.x();
+ if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())
+ previewY = urlRect.y() - webPreview.previewItem->boundingRect().height();
+
+ if(previewX + webPreview.previewItem->boundingRect().width() > sceneRect().width())
+ previewX = sceneRect().right() - webPreview.previewItem->boundingRect().width();
+
+ webPreview.previewItem->setPos(previewX, previewY);
+ }
+#endif
+}
+
+void ChatScene::showWebPreviewEvent() {
+#ifdef HAVE_WEBKIT
+ if(webPreview.previewItem)
+ addItem(webPreview.previewItem);
+#endif
+}
+
+void ChatScene::clearWebPreview(ChatItem *parentItem) {
+#ifndef HAVE_WEBKIT
+ Q_UNUSED(parentItem)
+#else
+ if(parentItem == 0 || webPreview.parentItem == parentItem) {
+ if(webPreview.previewItem && webPreview.previewItem->scene()) {
+ removeItem(webPreview.previewItem);
+ webPreview.deleteTimer.start();
+ }
+ webPreview.delayTimer.stop();
+ }
+#endif
+}
+
+void ChatScene::deleteWebPreviewEvent() {
+#ifdef HAVE_WEBKIT
+ if(webPreview.previewItem) {
+ delete webPreview.previewItem;
+ webPreview.previewItem = 0;
+ }
+ webPreview.parentItem = 0;
+ webPreview.url = QString();
+ webPreview.urlRect = QRectF();
+#endif