layout->setTextOption(option);
QList<QTextLayout::FormatRange> formatRanges
- = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length(), data(ChatLineModel::MsgLabelRole).toUInt());
+ = QtUi::style()->toTextLayoutList(formatList(), layout->text().length(), data(ChatLineModel::MsgLabelRole).toUInt());
layout->setAdditionalFormats(formatRanges);
}
+UiStyle::FormatList ChatItem::formatList() const {
+ return data(MessageModel::FormatRole).value<UiStyle::FormatList>();
+}
+
void ChatItem::doLayout(QTextLayout *layout) const {
- qreal h = 0;
layout->beginLayout();
- forever {
- QTextLine line = layout->createLine();
- if(!line.isValid())
- break;
+ QTextLine line = layout->createLine();
+ if(line.isValid()) {
line.setLineWidth(width());
- line.setPosition(QPointF(0, h));
- h += line.height();
+ line.setPosition(QPointF(0,0));
}
layout->endLayout();
}
QTextLayout layout;
initLayout(&layout);
- layout.draw(painter, QPointF(0,0), selectionFormats(), boundingRect());
+ layout.draw(painter, QPointF(0,0), additionalFormats(), boundingRect());
// layout()->draw(painter, QPointF(0,0), formats, boundingRect());
// painter->drawRect(_boundingRect.adjusted(0, 0, -1, -1));
}
+void ChatItem::overlayFormat(UiStyle::FormatList &fmtList, int start, int end, quint32 overlayFmt) const {
+ for(int i = 0; i < fmtList.count(); i++) {
+ int fmtStart = fmtList.at(i).first;
+ int fmtEnd = (i < fmtList.count()-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(i, fmtList.at(i));
+ fmtList[++i].first = start;
+ }
+ if(end < fmtEnd) {
+ fmtList.insert(i, fmtList.at(i));
+ fmtList[i+1].first = end;
+ }
+
+ fmtList[i].second |= overlayFmt;
+ }
+}
+
+QVector<QTextLayout::FormatRange> ChatItem::additionalFormats() const {
+ return selectionFormats();
+}
+
QVector<QTextLayout::FormatRange> ChatItem::selectionFormats() const {
if(!hasSelection())
return QVector<QTextLayout::FormatRange>();
end = qMax(_selectionStart, _selectionEnd);
}
- UiStyle::FormatList fmtList = data(MessageModel::FormatRole).value<UiStyle::FormatList>();
+ UiStyle::FormatList fmtList = formatList();
- while(fmtList.count() >=2 && fmtList.at(1).first <= start)
+ while(fmtList.count() > 1 && fmtList.at(1).first <= start)
fmtList.removeFirst();
fmtList.first().first = start;
- while(fmtList.count() >= 2 && fmtList.last().first >= end)
+ while(fmtList.count() > 1 && fmtList.last().first >= end)
fmtList.removeLast();
return QtUi::style()->toTextLayoutList(fmtList, end, UiStyle::Selected|data(ChatLineModel::MsgLabelRole).toUInt()).toVector();
QPixmap pixmap(layout.boundingRect().toRect().size());
pixmap.fill(Qt::transparent);
QPainter pixPainter(&pixmap);
- layout.draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), selectionFormats());
+ layout.draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), additionalFormats());
pixPainter.end();
// Create alpha channel mask
pixmap.setAlphaChannel(mask);
painter->drawPixmap(0, 0, pixmap);
} else {
- layout.draw(painter, QPointF(0,0), selectionFormats(), boundingRect());
+ layout.draw(painter, QPointF(0,0), additionalFormats(), boundingRect());
}
}
}
QFontMetricsF *ContentsChatItem::fontMetrics() const {
- return QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+ return QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second, 0);
}
ContentsChatItem::~ContentsChatItem() {
}
qreal ContentsChatItem::setGeometryByWidth(qreal w) {
- if(w != width()) {
+ // We use this for reloading layout info as well, so we can't bail out if the width doesn't change
+
+ // compute height
+ int lines = 1;
+ WrapColumnFinder finder(this);
+ while(finder.nextWrapColumn(w) > 0)
+ lines++;
+ qreal h = lines * fontMetrics()->lineSpacing();
+ delete _data;
+ _data = 0;
+
+ if(w != width() || h != height()) {
prepareGeometryChange();
- setWidth(w);
- QTextLayout layout;
- initLayout(&layout);
- setHeight(layout.boundingRect().height());
- delete _data;
- _data = 0;
+ setGeometry(w, h);
+ }
+ return h;
+}
+
+void ContentsChatItem::doLayout(QTextLayout *layout) const {
+ ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
+ if(!wrapList.count()) return; // empty chatitem
+
+ qreal h = 0;
+ WrapColumnFinder finder(this);
+ layout->beginLayout();
+ forever {
+ QTextLine line = layout->createLine();
+ if(!line.isValid())
+ break;
+
+ int col = finder.nextWrapColumn(width());
+ line.setNumColumns(col >= 0 ? col - line.textStart() : layout->text().length());
+ line.setPosition(QPointF(0, h));
+ h += fontMetrics()->lineSpacing();
}
- return height();
+ layout->endLayout();
}
// NOTE: This method is not threadsafe and not reentrant!
return Clickable();
}
+UiStyle::FormatList ContentsChatItem::formatList() const {
+ UiStyle::FormatList fmtList = ChatItem::formatList();
+ for(int i = 0; i < privateData()->clickables.count(); i++) {
+ Clickable click = privateData()->clickables.at(i);
+ if(click.type == Clickable::Url) {
+ overlayFormat(fmtList, click.start, click.start + click.length, UiStyle::Url);
+ }
+ }
+ return fmtList;
+}
+
QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const {
+ QVector<QTextLayout::FormatRange> fmt = ChatItem::additionalFormats();
// mark a clickable if hovered upon
- QVector<QTextLayout::FormatRange> fmt;
if(privateData()->currentClickable.isValid()) {
Clickable click = privateData()->currentClickable;
QTextLayout::FormatRange f;
/*************************************************************************************************/
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(const ChatItem *_item)
+ : item(_item),
+ wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+ wordidx(0),
+ lineCount(0),
+ choppedTrailing(0)
+{
+}
+
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
+}
+
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn(qreal width) {
+ if(wordidx >= wrapList.count())
+ return -1;
+
+ lineCount++;
+ qreal targetWidth = lineCount * width + choppedTrailing;
+
+ qint16 start = wordidx;
+ qint16 end = wrapList.count() - 1;
+
+ // check if the whole line fits
+ if(wrapList.at(end).endX <= targetWidth) // || start == end)
+ return -1;
+
+ // check if we have a very long word that needs inter word wrap
+ if(wrapList.at(start).endX > targetWidth) {
+ if(!line.isValid()) {
+ item->initLayoutHelper(&layout, QTextOption::NoWrap);
+ layout.beginLayout();
+ line = layout.createLine();
+ layout.endLayout();
+ }
+ return line.xToCursor(targetWidth, QTextLine::CursorOnCharacter);
+ }
+
+ while(true) {
+ if(start + 1 == end) {
+ wordidx = end;
+ const ChatLineModel::Word &lastWord = wrapList.at(start); // the last word we were able to squeeze in
+
+ // both cases should be cought preliminary
+ Q_ASSERT(lastWord.endX <= targetWidth); // ensure that "start" really fits in
+ Q_ASSERT(end < wrapList.count()); // ensure that start isn't the last word
+
+ choppedTrailing += lastWord.trailing - (targetWidth - lastWord.endX);
+ return wrapList.at(wordidx).start;
+ }
+
+ qint16 pivot = (end + start) / 2;
+ if(wrapList.at(pivot).endX > targetWidth) {
+ end = pivot;
+ } else {
+ start = pivot;
+ }
+ }
+ Q_ASSERT(false);
+ return -1;
+}
+
+/*************************************************************************************************/
+
projects / quassel.git / blobdiff