-// 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.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;
-
- static unsigned char *TextBoundaryFinderBuffer;
- static int TextBoundaryFinderBufferSize;
-};
-
-unsigned char *ChatLineModelItemPrivate::TextBoundaryFinderBuffer = (unsigned char *)malloc(512 * sizeof(HB_CharAttributes_Dummy));
-int ChatLineModelItemPrivate::TextBoundaryFinderBufferSize = 512 * (sizeof(HB_CharAttributes_Dummy) / sizeof(unsigned char));