+// PRIVATE DATA FOR CHATLINE MODEL ITEM
+class ChatLineModelItemPrivate {
+ struct ChatLinePart {
+ QString plainText;
+ UiStyle::FormatList formatList;
+ inline ChatLinePart(const QString &pT, const UiStyle::FormatList &fL) : plainText(pT), formatList(fL) {}
+ };
+
+public:
+ inline ChatLineModelItemPrivate(const Message &msg) : _msgBuffer(new Message(msg)), timestamp(0), sender(0), contents(0) {}
+ inline ~ChatLineModelItemPrivate() {
+ if(_msgBuffer) {
+ delete _msgBuffer;
+ } else {
+ delete timestamp;
+ delete sender;
+ delete contents;
+ }
+ }
+
+ inline bool needsStyling() { return (bool)_msgBuffer; }
+
+ inline ChatLinePart *partByColumn(MessageModel::ColumnType column) {
+ switch(column) {
+ case ChatLineModel::TimestampColumn:
+ return timestamp;
+ case ChatLineModel::SenderColumn:
+ return sender;
+ case ChatLineModel::ContentsColumn:
+ return contents;
+ default:
+ Q_ASSERT(false);
+ return 0;
+ }
+ }
+
+ inline const QString &plainText(MessageModel::ColumnType column) {
+ if(needsStyling())
+ style();
+ return partByColumn(column)->plainText;
+ }
+
+ inline const UiStyle::FormatList &formatList(MessageModel::ColumnType column) {
+ if(needsStyling())
+ style();
+ return partByColumn(column)->formatList;
+ }
+
+ inline const ChatLineModel::WrapList &wrapList() {
+ if(needsStyling())
+ style();
+ if(_wrapList.isEmpty())
+ computeWrapList();
+ return _wrapList;
+ }
+
+private:
+ inline void style() {
+ QtUiStyle::StyledMessage m = QtUi::style()->styleMessage(*_msgBuffer);
+
+ timestamp = new ChatLinePart(m.timestamp.plainText, m.timestamp.formatList);
+ sender = new ChatLinePart(m.sender.plainText, m.sender.formatList);
+ contents = new ChatLinePart(m.contents.plainText, m.contents.formatList);
+
+ delete _msgBuffer;
+ _msgBuffer = 0;
+ }
+
+ inline void computeWrapList() {
+ if(contents->plainText.isEmpty())
+ return;
+
+ enum Mode { SearchStart, SearchEnd };
+
+ QList<ChatLineModel::Word> wplist; // use a temp list which we'll later copy into a QVector for efficiency
+ QTextBoundaryFinder finder(QTextBoundaryFinder::Word, contents->plainText.unicode(), contents->plainText.length(), TextBoundaryFinderBuffer, TextBoundaryFinderBufferSize);
+
+ int idx;
+ int oldidx = 0;
+ bool wordStart = false;
+ bool wordEnd = false;
+ Mode mode = SearchEnd;
+ ChatLineModel::Word word;
+ word.start = 0;
+ qreal wordstartx = 0;
+
+ QTextLayout layout(contents->plainText);
+ QTextOption option;
+ option.setWrapMode(QTextOption::NoWrap);
+ layout.setTextOption(option);
+
+ layout.setAdditionalFormats(QtUi::style()->toTextLayoutList(contents->formatList, contents->plainText.length()));
+ layout.beginLayout();
+ QTextLine line = layout.createLine();
+ line.setNumColumns(contents->plainText.length());
+ layout.endLayout();
+
+ do {
+ idx = finder.toNextBoundary();
+ if(idx < 0) {
+ idx = contents->plainText.length();
+ wordStart = false;
+ wordEnd = false;
+ mode = SearchStart;
+ } else {
+ wordStart = finder.boundaryReasons().testFlag(QTextBoundaryFinder::StartWord);
+ wordEnd = finder.boundaryReasons().testFlag(QTextBoundaryFinder::EndWord);
+ }
+
+ //if(flg) qDebug() << idx << mode << wordStart << wordEnd << contents->plainText.left(idx) << contents->plainText.mid(idx);
+
+ if(mode == SearchEnd || (!wordStart && wordEnd)) {
+ if(wordStart || !wordEnd) continue;
+ oldidx = idx;
+ mode = SearchStart;
+ continue;
+ }
+ qreal wordendx = line.cursorToX(oldidx);
+ qreal trailingendx = line.cursorToX(idx);
+ word.endX = wordendx;
+ word.width = wordendx - wordstartx;
+ word.trailing = trailingendx - wordendx;
+ wordstartx = trailingendx;
+ wplist.append(word);
+
+ if(wordStart) {
+ word.start = idx;
+ mode = SearchEnd;
+ }
+ // the part " || (finder.position() == contents->plainText.length())" shouldn't be necessary
+ // but in rare and indeterministic cases Qt states that the end of the text is not a boundary o_O
+ } while(finder.isAtBoundary() || (finder.position() == contents->plainText.length()));
+
+ // A QVector needs less space than a QList
+ _wrapList.resize(wplist.count());
+ for(int i = 0; i < wplist.count(); i++) {
+ _wrapList[i] = wplist.at(i);
+ }
+ }
+
+ ChatLineModel::WrapList _wrapList;
+ Message *_msgBuffer;
+ ChatLinePart *timestamp, *sender, *contents;