-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
- Q_UNUSED(option); Q_UNUSED(widget);
- if(!hasLayout())
- updateLayout();
- painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
- //if(_selectionMode == FullSelection) {
- //painter->save();
- //painter->fillRect(boundingRect(), QApplication::palette().brush(QPalette::Highlight));
- //painter->restore();
- //}
- QVector<QTextLayout::FormatRange> formats = additionalFormats();
- if(_selectionMode != NoSelection) {
- QTextLayout::FormatRange selectFmt;
- selectFmt.format.setForeground(QApplication::palette().brush(QPalette::HighlightedText));
- selectFmt.format.setBackground(QApplication::palette().brush(QPalette::Highlight));
- if(_selectionMode == PartialSelection) {
- selectFmt.start = qMin(_selectionStart, _selectionEnd);
- selectFmt.length = qAbs(_selectionStart - _selectionEnd);
- } else { // FullSelection
- selectFmt.start = 0;
- selectFmt.length = data(MessageModel::DisplayRole).toString().length();
- }
- formats.append(selectFmt);
- }
- layout()->draw(painter, QPointF(0,0), formats, boundingRect());
-
- // Debuging Stuff
- // uncomment the following lines to draw the bounding rect and the row number in alternating colors
-// if(row() % 2)
-// painter->setPen(Qt::red);
-// else
-// painter->setPen(Qt::blue);
-// QString rowString = QString::number(row());
-// QRect rowRect = painter->fontMetrics().boundingRect(rowString);
-// QPointF topPoint = _boundingRect.topLeft();
-// topPoint.ry() += rowRect.height();
-// painter->drawText(topPoint, rowString);
-// QPointF bottomPoint = _boundingRect.bottomRight();
-// bottomPoint.rx() -= rowRect.width();
-// painter->drawText(bottomPoint, rowString);
-// painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
-}
-
-qint16 ChatItem::posToCursor(const QPointF &pos) {
- if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length();
- if(pos.y() < 0) return 0;
- if(!hasLayout())
- updateLayout();
- for(int l = layout()->lineCount() - 1; l >= 0; l--) {
- QTextLine line = layout()->lineAt(l);
- if(pos.y() >= line.y()) {
- return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
- }
- }
- return 0;
-}
-
-void ChatItem::setFullSelection() {
- if(_selectionMode != FullSelection) {
- _selectionMode = FullSelection;
- update();
- }
-}
-
-void ChatItem::clearSelection() {
- _selectionMode = NoSelection;
- update();
-}
-
-void ChatItem::continueSelecting(const QPointF &pos) {
- _selectionMode = PartialSelection;
- _selectionEnd = posToCursor(pos);
- update();
-}
-
-QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
- QList<QRectF> resultList;
- const QAbstractItemModel *model_ = model();
- if(!model_)
+void ChatItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+ Q_UNUSED(option);
+ Q_UNUSED(widget);
+ painter->save();
+ painter->setClipRect(boundingRect());
+ paintBackground(painter);
+
+ layout()->draw(painter, pos(), additionalFormats(), boundingRect());
+
+ // layout()->draw(painter, QPointF(0,0), formats, boundingRect());
+
+ // Debuging Stuff
+ // uncomment partially or all of the following stuff:
+ //
+ // 0) alternativ painter color for debug stuff
+ // if(row() % 2)
+ // painter->setPen(Qt::red);
+ // else
+ // painter->setPen(Qt::blue);
+ // 1) draw wordwrap points in the first line
+ // if(column() == 2) {
+ // ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ // foreach(ChatLineModel::Word word, wrapList) {
+ // if(word.endX > width())
+ // break;
+ // painter->drawLine(word.endX, 0, word.endX, height());
+ // }
+ // }
+ // 2) draw MsgId over the time column
+ // if(column() == 0) {
+ // QString msgIdString = QString::number(data(MessageModel::MsgIdRole).value<MsgId>().toLongLong());
+ // QPointF bottomPoint = boundingRect().bottomLeft();
+ // bottomPoint.ry() -= 2;
+ // painter->drawText(bottomPoint, msgIdString);
+ // }
+ // 3) draw bounding rect
+ // painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
+
+ painter->restore();
+}
+
+void ChatItem::overlayFormat(UiStyle::FormatList& fmtList, quint16 start, quint16 end, UiStyle::FormatType overlayFmt) const
+{
+ for (size_t i = 0; i < fmtList.size(); i++) {
+ int fmtStart = fmtList.at(i).first;
+ int fmtEnd = (i < fmtList.size() - 1 ? fmtList.at(i + 1).first : data(MessageModel::DisplayRole).toString().length());
+
+ if (fmtEnd <= start)
+ continue;
+ if (fmtStart >= end)
+ break;
+
+ // split the format if necessary
+ if (fmtStart < start) {
+ fmtList.insert(fmtList.begin() + i, fmtList.at(i));
+ fmtList[++i].first = start;
+ }
+ if (end < fmtEnd) {
+ fmtList.insert(fmtList.begin() + i, fmtList.at(i));
+ fmtList[i + 1].first = end;
+ }
+
+ fmtList[i].second.type |= overlayFmt;
+ }
+}
+
+QVector<QTextLayout::FormatRange> ChatItem::additionalFormats() const
+{
+ // Calculate formats to overlay (only) if there's a selection, and/or a hovered clickable
+ if (!hasSelection() && !hasActiveClickable()) {
+ return {};
+ }
+
+ using Label = UiStyle::MessageLabel;
+ using Format = UiStyle::Format;
+
+ auto itemLabel = data(ChatLineModel::MsgLabelRole).value<Label>();
+ const auto& fmtList = formatList();
+
+ struct LabelFormat
+ {
+ quint16 offset;
+ Format format;
+ Label label;
+ };
+
+ // Transform formatList() into an extended list of LabelFormats
+ std::vector<LabelFormat> labelFmtList;
+ std::transform(fmtList.cbegin(), fmtList.cend(), std::back_inserter(labelFmtList), [itemLabel](const std::pair<quint16, Format>& f) {
+ return LabelFormat{f.first, f.second, itemLabel};
+ });
+ // Append dummy element to avoid special-casing handling the last real format
+ labelFmtList.push_back(LabelFormat{quint16(data(MessageModel::DisplayRole).toString().length()), Format(), itemLabel});
+
+ // Apply the given label to the given range in the format list, splitting formats as necessary
+ auto applyLabel = [&labelFmtList](quint16 start, quint16 end, Label label) {
+ size_t i = 0;
+
+ // Skip unaffected formats
+ for (; i < labelFmtList.size() - 1; ++i) {
+ if (labelFmtList[i + 1].offset > start)
+ break;
+ }
+ // Range start doesn't align; split affected format and let the index point to the newly inserted copy
+ if (labelFmtList[i].offset < start) {
+ labelFmtList.insert(labelFmtList.begin() + i, labelFmtList[i]);
+ labelFmtList[++i].offset = start;
+ }
+
+ // Apply label to formats fully affected
+ for (; i < labelFmtList.size() - 1; ++i) {
+ if (labelFmtList[i + 1].offset <= end) {
+ labelFmtList[i].label |= label;
+ continue;
+ }
+ // Last affected format, split if end of range doesn't align
+ if (labelFmtList[i + 1].offset > end) {
+ labelFmtList.insert(labelFmtList.begin() + i, labelFmtList[i]);
+ labelFmtList[i].label |= label;
+ labelFmtList[i + 1].offset = end;
+ }
+ break;
+ }
+ };
+
+ // Apply selection label
+ if (hasSelection()) {
+ quint16 start, end;
+ if (_selectionMode == FullSelection) {
+ start = 0;
+ end = data(MessageModel::DisplayRole).toString().length();
+ }
+ else {
+ start = qMin(_selectionStart, _selectionEnd);
+ end = qMax(_selectionStart, _selectionEnd);
+ }
+ applyLabel(start, end, Label::Selected);
+ }
+
+ // Apply hovered label
+ if (hasActiveClickable()) {
+ applyLabel(activeClickableRange().first, activeClickableRange().second, Label::Hovered);
+ }
+
+ // Add all formats that have an extra label to the additionalFormats list
+ QList<QTextLayout::FormatRange> additionalFormats;
+ for (size_t i = 0; i < labelFmtList.size() - 1; ++i) {
+ if (labelFmtList[i].label != itemLabel) {
+ additionalFormats << QtUi::style()->toTextLayoutList({std::make_pair(labelFmtList[i].offset, labelFmtList[i].format)},
+ labelFmtList[i + 1].offset,
+ labelFmtList[i].label);
+ }
+ }
+
+ return additionalFormats.toVector();
+}
+
+bool ChatItem::hasSelection() const
+{
+ if (_selectionMode == NoSelection)
+ return false;
+ if (_selectionMode == FullSelection)
+ return true;
+ // partial
+ return _selectionStart != _selectionEnd;
+}
+
+QString ChatItem::selection() const
+{
+ if (_selectionMode == FullSelection)
+ return data(MessageModel::DisplayRole).toString();
+ if (_selectionMode == PartialSelection)
+ return data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
+ return QString();
+}
+
+void ChatItem::setSelection(SelectionMode mode, qint16 start, qint16 end)
+{
+ _selectionMode = mode;
+ _selectionStart = start;
+ _selectionEnd = end;
+ chatLine()->update();
+}
+
+void ChatItem::setFullSelection()
+{
+ if (_selectionMode != FullSelection) {
+ _selectionMode = FullSelection;
+ chatLine()->update();
+ }
+}
+
+void ChatItem::clearSelection()
+{
+ if (_selectionMode != NoSelection) {
+ _selectionMode = NoSelection;
+ chatLine()->update();
+ }
+}
+
+void ChatItem::continueSelecting(const QPointF& pos)
+{
+ _selectionMode = PartialSelection;
+ _selectionEnd = posToCursor(pos);
+ chatLine()->update();
+}
+
+bool ChatItem::isPosOverSelection(const QPointF& pos) const
+{
+ if (_selectionMode == FullSelection)
+ return true;
+ if (_selectionMode == PartialSelection) {
+ int cursor = posToCursor(pos);
+ return cursor >= qMin(_selectionStart, _selectionEnd) && cursor <= qMax(_selectionStart, _selectionEnd);
+ }
+ return false;
+}
+
+bool ChatItem::hasActiveClickable() const
+{
+ return false;
+}
+
+std::pair<quint16, quint16> ChatItem::activeClickableRange() const
+{
+ return {};
+}
+
+QList<QRectF> ChatItem::findWords(const QString& searchWord, Qt::CaseSensitivity caseSensitive)
+{
+ QList<QRectF> resultList;
+ const QAbstractItemModel* model_ = model();
+ if (!model_)
+ return resultList;
+
+ QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
+ QList<int> indexList;
+ int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
+ while (searchIdx != -1) {
+ indexList << searchIdx;
+ searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
+ }
+
+ foreach (int idx, indexList) {
+ QTextLine line = layout()->lineForTextPosition(idx);
+ qreal x = line.cursorToX(idx);
+ qreal width = line.cursorToX(idx + searchWord.count()) - x;
+ qreal height = line.height();
+ qreal y = height * line.lineNumber();
+ resultList << QRectF(x, y, width, height);
+ }
+