+}
+
+void ChatScene::rowsInserted(const QModelIndex &index, int start, int end) {
+ Q_UNUSED(index);
+ // maybe make this more efficient by prepending stuff with negative yval
+ // dunno if that's worth not guranteeing that 0 is on the top...
+ // TODO bulk inserts, iterators
+ qreal h = 0;
+ qreal y = 0;
+ if(_width && start > 0) y = _lines.value(start - 1)->y() + _lines.value(start - 1)->height();
+ for(int i = start; i <= end; i++) {
+ ChatLine *line = new ChatLine(i, model());
+ _lines.insert(i, line);
+ addItem(line);
+ if(_width > 0) {
+ line->setPos(0, y+h);
+ h += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
+ }
+ }
+ // update existing items
+ for(int i = end+1; i < _lines.count(); i++) {
+ _lines[i]->setRow(i);
+ }
+
+ if(h > 0) {
+ _height += h;
+ for(int i = end+1; i < _lines.count(); i++) {
+ _lines.value(i)->moveBy(0, h);
+ }
+ setSceneRect(QRectF(0, 0, _width, _height));
+ emit heightChanged(_height);
+ }
+
+ requestBacklogIfNeeded();
+}
+
+void ChatScene::modelReset() {
+ foreach(ChatLine *line, _lines) {
+ removeItem(line);
+ delete line;
+ }
+ _lines.clear();
+ setSceneRect(QRectF(0, 0, _width, 0));
+}
+
+void ChatScene::setWidth(qreal w) {
+ _width = w;
+ _height = 0;
+ foreach(ChatLine *line, _lines) {
+ line->setPos(0, _height);
+ _height += line->setGeometry(_width, firstColHandlePos, secondColHandlePos);
+ }
+ setSceneRect(QRectF(0, 0, w, _height));
+ secondColHandle->setXLimits(firstColHandlePos, width() - minContentsWidth);
+ emit heightChanged(_height);
+}
+
+void ChatScene::rectChanged(const QRectF &rect) {
+ firstColHandle->sceneRectChanged(rect);
+ secondColHandle->sceneRectChanged(rect);
+}
+
+void ChatScene::handlePositionChanged(qreal xpos) {
+ bool first = (sender() == firstColHandle);
+ qreal oldx;
+ if(first) {
+ oldx = firstColHandlePos;
+ firstColHandlePos = xpos;
+ } else {
+ oldx = secondColHandlePos;
+ secondColHandlePos = xpos;
+ }
+ QtUiSettings s;
+ s.setValue(QString("ChatView/%1/FirstColumnHandlePos").arg(_idString), firstColHandlePos);
+ s.setValue(QString("ChatView/%1/SecondColumnHandlePos").arg(_idString), secondColHandlePos);
+ s.setValue(QString("ChatView/DefaultFirstColumnHandlePos"), firstColHandlePos);
+ s.setValue(QString("ChatView/DefaultSecondColumnHandlePos"), secondColHandlePos);
+
+ setWidth(width()); // readjust all chatlines
+ // we get ugly redraw errors if we don't update this explicitly... :(
+ // width() should be the same for both handles, so just use firstColHandle regardless
+ update(qMin(oldx, xpos) - firstColHandle->width()/2, 0, qMax(oldx, xpos) + firstColHandle->width()/2, height());
+}
+
+void ChatScene::setSelectingItem(ChatItem *item) {
+ if(_selectingItem) _selectingItem->clearSelection();
+ _selectingItem = item;
+}
+
+void ChatScene::startGlobalSelection(ChatItem *item, const QPointF &itemPos) {
+ _selectionStart = _selectionEnd = 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(secondColHandlePos + secondColHandle->width()/2, pos.y())));
+ if(!contentItem) return;
+
+ int curRow = contentItem->row();
+ int curColumn;
+ if(pos.x() > secondColHandlePos + secondColHandle->width()/2) 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);
+ }
+ }
+
+ if(curRow > _selectionEnd && curRow > _selectionStart) { // select further towards bottom
+ for(int l = _selectionEnd + 1; l <= curRow; l++) {
+ _lines[l]->setSelected(true, minColumn);
+ }
+ } else if(curRow > _selectionEnd && curRow <= _selectionStart) { // deselect towards bottom
+ for(int l = _selectionEnd; l < curRow; l++) {
+ _lines[l]->setSelected(false);
+ }
+ } else if(curRow < _selectionEnd && curRow >= _selectionStart) {
+ for(int l = _selectionEnd; l > curRow; l--) {
+ _lines[l]->setSelected(false);
+ }
+ } else if(curRow < _selectionEnd && curRow < _selectionStart) {
+ for(int l = _selectionEnd - 1; l >= curRow; l--) {
+ _lines[l]->setSelected(true, minColumn);
+ }
+ }
+ _selectionEnd = curRow;
+
+ if(curRow == _selectionStart && minColumn == ChatLineModel::ContentsColumn) {
+ _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);
+ }
+}