X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fqtui%2Fchatitem.cpp;h=7d52c5a57dfafc96ca6984927f0de74dbaf71d3c;hb=1183bd403b16d86ef59503185b9ab4d35eb8c93f;hp=c12d5c5b92b5fe1712b1c52c42415fbad3d5be8f;hpb=84ff541e038763977a99642a90af11ee995c440d;p=quassel.git diff --git a/src/qtui/chatitem.cpp b/src/qtui/chatitem.cpp index c12d5c5b..7d52c5a5 100644 --- a/src/qtui/chatitem.cpp +++ b/src/qtui/chatitem.cpp @@ -18,9 +18,12 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ +#include +#include #include #include #include +#include #include #include "chatitem.h" @@ -28,14 +31,14 @@ #include "qtui.h" ChatItem::ChatItem(const QPersistentModelIndex &index_, QGraphicsItem *parent) : QGraphicsItem(parent), _index(index_) { - QFontMetricsF *metrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value().at(0).second); - _lineHeight = metrics->lineSpacing(); - _lineLeading = metrics->leading(); + _fontMetrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value().at(0).second); _layout = 0; + _lines = 0; + _selectionStart = -1; } ChatItem::~ChatItem() { - + delete _layout; } QVariant ChatItem::data(int role) const { @@ -48,65 +51,83 @@ QVariant ChatItem::data(int role) const { int ChatItem::setWidth(int w) { if(w == _boundingRect.width()) return _boundingRect.height(); - int h = heightForWidth(w); + prepareGeometryChange(); _boundingRect.setWidth(w); + int h = heightForWidth(w); _boundingRect.setHeight(h); + if(haveLayout()) updateLayout(); return h; } int ChatItem::heightForWidth(int width) { if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn) - return _lineHeight; // only contents can be multi-line - - QVariantList wrapList = data(ChatLineModel::WrapListRole).toList(); - int lines = 1; - int offset = 0; - for(int i = 0; i < wrapList.count(); i+=2) { - if(wrapList.at(i+1).toUInt() - offset < width) continue; - lines++; - if(i > 0) { - if(offset < wrapList.at(i-1).toUInt()) offset = wrapList.at(i-1).toUInt(); - else offset += width; - } else { - offset += width; - } - i-=2; - } - return lines * _lineHeight; -} - -void ChatItem::layout() { - if(_layout) return; - _layout = new QTextLayout(data(MessageModel::DisplayRole).toString()); - - // Convert format information into a FormatRange - QList formatRanges; - UiStyle::FormatList formatList = data(MessageModel::FormatRole).value(); - QTextLayout::FormatRange range; - int i = 0; - for(i = 0; i < formatList.count(); i++) { - range.format = QtUi::style()->mergedFormat(formatList.at(i).second); - range.start = formatList.at(i).first; - if(i > 0) formatRanges.last().length = range.start - formatRanges.last().start; - formatRanges.append(range); - } - if(i > 0) formatRanges.last().length = _layout->text().length() - formatRanges.last().start; - _layout->setAdditionalFormats(formatRanges); - - // Now layout - qreal h = 0; - _layout->beginLayout(); - forever { - QTextLine line = _layout->createLine(); - if (!line.isValid()) + return fontMetrics()->lineSpacing(); // only contents can be multi-line + + _lines = 1; + WrapColumnFinder finder(this); + while(finder.nextWrapColumn() > 0) _lines++; + return _lines * fontMetrics()->lineSpacing(); +} + +QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) { + QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString()); + + QTextOption option; + option.setWrapMode(wrapMode); + option.setAlignment(alignment); + layout->setTextOption(option); + + QList formatRanges + = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value(), layout->text().length()); + layout->setAdditionalFormats(formatRanges); + return layout; +} + +void ChatItem::updateLayout() { + switch(data(ChatLineModel::ColumnTypeRole).toUInt()) { + case ChatLineModel::TimestampColumn: + if(!haveLayout()) _layout = createLayout(QTextOption::WrapAnywhere, Qt::AlignLeft); + // fallthrough + case ChatLineModel::SenderColumn: + if(!haveLayout()) _layout = createLayout(QTextOption::WrapAnywhere, Qt::AlignRight); + _layout->beginLayout(); + { + QTextLine line = _layout->createLine(); + if(line.isValid()) { + line.setLineWidth(width()); + line.setPosition(QPointF(0, fontMetrics()->leading())); + } + _layout->endLayout(); + } break; + case ChatLineModel::ContentsColumn: { + if(!haveLayout()) _layout = createLayout(QTextOption::WrapAnywhere); - line.setLineWidth(width()); - h += _lineLeading; - line.setPosition(QPointF(0, h)); - h += line.height(); + // Now layout + ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value(); + if(!wrapList.count()) return; // empty chatitem + int wordidx = 0; + ChatLineModel::Word word = wrapList.at(0); + + qreal h = 0; + WrapColumnFinder finder(this); + _layout->beginLayout(); + forever { + QTextLine line = _layout->createLine(); + if (!line.isValid()) + break; + + int col = finder.nextWrapColumn(); + line.setNumColumns(col >= 0 ? col - line.textStart() : _layout->text().length()); + + h += fontMetrics()->leading(); + line.setPosition(QPointF(0, h)); + h += line.height(); + } + _layout->endLayout(); + } + break; } - _layout->endLayout(); } void ChatItem::clearLayout() { @@ -116,63 +137,120 @@ void ChatItem::clearLayout() { void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { Q_UNUSED(option); Q_UNUSED(widget); - layout(); + if(!haveLayout()) updateLayout(); _layout->draw(painter, QPointF(0,0), QVector(), boundingRect()); } -/* -void ChatItem::layout() { - if(!_layout.additionalFormats().count()) return; // no text set - if(_width <= 0) return; - prepareGeometryChange(); - QFontMetrics metrics(_layout.additionalFormats()[0].format.font()); - int leading = metrics.leading(); - int height = 0; - _layout.setTextOption(textOption()); - _layout.beginLayout(); - while(1) { - QTextLine line = _layout.createLine(); - if(!line.isValid()) break; - line.setLineWidth(_width); - if(textOption().wrapMode() != QTextOption::NoWrap && line.naturalTextWidth() > _width) { - // word did not fit, we need to wrap it in the middle - // this is a workaround for Qt failing to handle WrapAtWordBoundaryOrAnywhere correctly - QTextOption::WrapMode mode = textOption().wrapMode(); - textOption().setWrapMode(QTextOption::WrapAnywhere); - _layout.setTextOption(textOption()); - line.setLineWidth(_width); - textOption().setWrapMode(mode); - _layout.setTextOption(textOption()); +int ChatItem::posToCursor(const QPointF &pos) { + if(pos.y() > height()) return data(MessageModel::DisplayRole).toString().length(); + if(pos.y() < 0) return 0; + if(!haveLayout()) 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); } - height += leading; - line.setPosition(QPoint(0, height)); - height += line.height(); } - _layout.endLayout(); + return 0; +} + +void ChatItem::clearSelection() { + if(_selectionStart >= 0) { + QList formats = _layout->additionalFormats(); + formats.removeLast(); + _layout->setAdditionalFormats(formats); + _selectionStart = -1; + updateLayout(); + update(); + } +} + +void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) { + int selectionEnd = posToCursor(event->pos()); + QList formats = _layout->additionalFormats(); + formats.last().start = qMin(_selectionStart, selectionEnd); + formats.last().length = qMax(_selectionStart, selectionEnd) - formats.last().start; + _layout->setAdditionalFormats(formats); + updateLayout(); update(); -} QDateTime _timestamp; - MsgId _msgId; +} +void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) { + if(event->buttons() & Qt::LeftButton) { + if(!haveLayout()) updateLayout(); + chatScene()->setSelectingItem(this); + _selectionStart = posToCursor(event->pos()); + QList formats = _layout->additionalFormats(); + QTextLayout::FormatRange selectFmt; + QPalette pal = QApplication::palette(); + selectFmt.format.setForeground(pal.brush(QPalette::HighlightedText)); + selectFmt.format.setBackground(pal.brush(QPalette::Highlight)); + selectFmt.length = 0; + formats.append(selectFmt); + _layout->setAdditionalFormats(formats); + updateLayout(); + update(); + event->accept(); + } else { + event->ignore(); + } +} -QRectF ChatItem::boundingRect() const { - return _layout.boundingRect(); +void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) { + if(_selectionStart >= 0) { + int selectionEnd = posToCursor(event->pos()); + QString selection + = data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, selectionEnd), qAbs(_selectionStart - selectionEnd)); + QApplication::clipboard()->setText(selection, QClipboard::Clipboard); // TODO configure where selections should go + event->accept(); + } else { + event->ignore(); + } } -void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { - Q_UNUSED(option); Q_UNUSED(widget); - _layout.draw(painter, QPointF(0, 0)); +/*************************************************************************************************/ +ChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item) : item(_item) { + wrapList = item->data(ChatLineModel::WrapListRole).value(); + wordidx = 0; + layout = 0; + lastwrapcol = 0; + lastwrappos = 0; + w = 0; } -*/ -/* -void ChatItem::mouseMoveEvent ( QGraphicsSceneMouseEvent * event ) { - qDebug() << (void*)this << "moving" << event->pos(); - if(event->pos().y() < 0) { - QTextCursor cursor(document()); - //cursor.insertText("foo"); - //cursor.select(QTextCursor::Document); - event->ignore(); - } else QGraphicsTextItem::mouseMoveEvent(event); +ChatItem::WrapColumnFinder::~WrapColumnFinder() { + delete layout; +} + +int ChatItem::WrapColumnFinder::nextWrapColumn() { + while(wordidx < wrapList.count()) { + w += wrapList.at(wordidx).width; + if(w >= item->width()) { + if(lastwrapcol >= wrapList.at(wordidx).start) { + // first word, and it doesn't fit + if(!line.isValid()) { + layout = item->createLayout(QTextOption::NoWrap); + layout->beginLayout(); + line = layout->createLine(); + line.setLineWidth(item->width()); + layout->endLayout(); + } + int idx = line.xToCursor(lastwrappos + item->width(), QTextLine::CursorOnCharacter); + qreal x = line.cursorToX(idx, QTextLine::Trailing); + w = w - wrapList.at(wordidx).width - (x - lastwrappos); + lastwrappos = x; + lastwrapcol = idx; + return idx; + } + // not the first word, so just wrap before this + lastwrapcol = wrapList.at(wordidx).start; + lastwrappos = lastwrappos + w - wrapList.at(wordidx).width; + w = 0; + return lastwrapcol; + } + w += wrapList.at(wordidx).trailing; + wordidx++; + } + return -1; } -*/