#include "chatitem.h"
#include "chatlinemodel.h"
#include "qtui.h"
+#include "qtuistyle.h"
-ChatItem::ChatItem(ChatLineModel::ColumnType col, QAbstractItemModel *model, QGraphicsItem *parent)
+ChatItem::ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent)
: QGraphicsItem(parent),
- _fontMetrics(0),
+ _data(0),
+ _boundingRect(0, 0, width, height),
_selectionMode(NoSelection),
- _selectionStart(-1),
- _layout(0)
+ _selectionStart(-1)
{
- Q_ASSERT(model);
- QModelIndex index = model->index(row(), col);
- _fontMetrics = QtUi::style()->fontMetrics(model->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
setAcceptHoverEvents(true);
setZValue(20);
+ setPos(pos);
}
ChatItem::~ChatItem() {
- delete _layout;
+ delete _data;
}
QVariant ChatItem::data(int role) const {
return model()->data(index, role);
}
-qreal ChatItem::setGeometry(qreal w, qreal h) {
- if(w == _boundingRect.width()) return _boundingRect.height();
- prepareGeometryChange();
- _boundingRect.setWidth(w);
- if(h < 0) h = computeHeight();
- //if(h < 0) h = fontMetrics()->lineSpacing(); // only contents can be multi-line
- _boundingRect.setHeight(h);
- if(haveLayout()) updateLayout();
- return h;
-}
-
-qreal ChatItem::computeHeight() {
- return fontMetrics()->lineSpacing(); // only contents can be multi-line
-}
-
-QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) {
+QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) const {
QTextLayout *layout = new QTextLayout(data(MessageModel::DisplayRole).toString());
QTextOption option;
return layout;
}
-void ChatItem::updateLayout() {
- if(!haveLayout())
- setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignLeft));
-
- layout()->beginLayout();
- QTextLine line = layout()->createLine();
+void ChatItem::doLayout() {
+ QTextLayout *layout_ = layout();
+ layout_->beginLayout();
+ QTextLine line = layout_->createLine();
if(line.isValid()) {
line.setLineWidth(width());
line.setPosition(QPointF(0,0));
}
- layout()->endLayout();
+ layout_->endLayout();
}
void ChatItem::clearLayout() {
- delete _layout;
- _layout = 0;
+ delete _data;
+ _data = 0;
+}
+
+ChatItemPrivate *ChatItem::privateData() const {
+ if(!_data) {
+ ChatItem *that = const_cast<ChatItem *>(this);
+ that->_data = that->newPrivateData();
+ that->doLayout();
+ }
+ return _data;
}
// NOTE: This is not the most time-efficient implementation, but it saves space by not caching unnecessary data
// This is a deliberate trade-off. (-> selectFmt creation, data() call)
void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
Q_UNUSED(option); Q_UNUSED(widget);
- if(!haveLayout()) 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);
- }
+ QTextLayout::FormatRange selectFmt = selectionFormat();
+ if(selectFmt.format.isValid()) formats.append(selectFmt);
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>().toInt());
+// QPointF bottomPoint = boundingRect().bottomLeft();
+// bottomPoint.ry() -= 2;
+// painter->drawText(bottomPoint, msgIdString);
+// }
+ // 3) draw bounding rect
+// 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(!haveLayout()) updateLayout();
for(int l = layout()->lineCount() - 1; l >= 0; l--) {
QTextLine line = layout()->lineAt(l);
if(pos.y() >= line.y()) {
update();
}
+QTextLayout::FormatRange ChatItem::selectionFormat() const {
+ QTextLayout::FormatRange selectFmt;
+ if(_selectionMode != NoSelection) {
+ 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();
+ }
+ } else {
+ selectFmt.start = -1;
+ selectFmt.length = 0;
+ }
+ return selectFmt;
+}
+
QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
QList<QRectF> resultList;
const QAbstractItemModel *model_ = model();
searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
}
- if(!haveLayout())
- updateLayout();
+ bool hadPrivateData = hasPrivateData();
foreach(int idx, indexList) {
QTextLine line = layout()->lineForTextPosition(idx);
qreal x = line.cursorToX(idx);
qreal width = line.cursorToX(idx + searchWord.count()) - x;
- qreal height = fontMetrics()->lineSpacing();
+ qreal height = line.height();
qreal y = height * line.lineNumber();
resultList << QRectF(x, y, width, height);
}
+
+ if(!hadPrivateData)
+ clearLayout();
return resultList;
}
}
}
-/*************************************************************************************************/
-
-/*************************************************************************************************/
-
-void SenderChatItem::updateLayout() {
- if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignRight));
- ChatItem::updateLayout();
-}
-
-/*************************************************************************************************/
-
-ContentsChatItem::ContentsChatItem(QAbstractItemModel *model, QGraphicsItem *parent) : ChatItem(column(), model, parent),
- _layoutData(0)
-{
+// ************************************************************
+// SenderChatItem
+// ************************************************************
-}
-
-ContentsChatItem::~ContentsChatItem() {
- delete _layoutData;
-}
-
-qreal ContentsChatItem::computeHeight() {
- int lines = 1;
- WrapColumnFinder finder(this);
- while(finder.nextWrapColumn() > 0) lines++;
- return lines * fontMetrics()->lineSpacing();
-}
+void SenderChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
+ Q_UNUSED(option); Q_UNUSED(widget);
-void ContentsChatItem::setLayout(QTextLayout *layout) {
- if(!_layoutData) {
- _layoutData = new LayoutData;
- _layoutData->clickables = findClickables();
+ //painter->setClipRect(boundingRect()); // no idea why QGraphicsItem clipping won't work
+ qreal layoutWidth = layout()->minimumWidth();
+ qreal offset = 0;
+ if(chatScene()->senderCutoffMode() == ChatScene::CutoffLeft)
+ offset = qMin(width() - layoutWidth, (qreal)0);
+ else
+ offset = qMax(layoutWidth - width(), (qreal)0);
+
+ QTextLayout::FormatRange selectFmt = selectionFormat();
+
+ if(layoutWidth > width()) {
+ // Draw a nice gradient for longer items
+ // Qt's text drawing with a gradient brush sucks, so we use an alpha-channeled pixmap instead
+ QPixmap pixmap(QSize(layout()->boundingRect().width(), layout()->boundingRect().height()));
+ pixmap.fill(Qt::transparent);
+ QPainter pixPainter(&pixmap);
+ layout()->draw(&pixPainter, QPointF(qMax(offset, (qreal)0), 0), QVector<QTextLayout::FormatRange>() << selectFmt);
+ pixPainter.end();
+
+ // Create alpha channel mask
+ QPixmap mask(pixmap.size());
+ QPainter maskPainter(&mask);
+ QLinearGradient gradient;
+ if(offset < 0) {
+ gradient.setStart(0, 0);
+ gradient.setFinalStop(12, 0);
+ gradient.setColorAt(0, Qt::black);
+ gradient.setColorAt(1, Qt::white);
+ } else {
+ gradient.setStart(width()-10, 0);
+ gradient.setFinalStop(width(), 0);
+ gradient.setColorAt(0, Qt::white);
+ gradient.setColorAt(1, Qt::black);
+ }
+ maskPainter.fillRect(boundingRect(), gradient);
+ pixmap.setAlphaChannel(mask);
+ painter->drawPixmap(0, 0, pixmap);
} else {
- delete _layoutData->layout;
+ layout()->draw(painter, QPointF(0,0), QVector<QTextLayout::FormatRange>() << selectFmt, boundingRect());
}
- _layoutData->layout = layout;
}
-void ContentsChatItem::clearLayout() {
- delete _layoutData;
- _layoutData = 0;
+// ************************************************************
+// ContentsChatItem
+// ************************************************************
+ContentsChatItem::ContentsChatItem(const qreal &width, const QPointF &pos, QGraphicsItem *parent)
+ : ChatItem(0, 0, pos, parent)
+{
+ const QAbstractItemModel *model_ = model();
+ QModelIndex index = model_->index(row(), column());
+ _fontMetrics = QtUi::style()->fontMetrics(model_->data(index, ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
+
+ setGeometryByWidth(width);
+}
+
+qreal ContentsChatItem::setGeometryByWidth(qreal w) {
+ if(w != width()) {
+ prepareGeometryChange();
+ setWidth(w);
+ // compute height
+ int lines = 1;
+ WrapColumnFinder finder(this);
+ while(finder.nextWrapColumn() > 0)
+ lines++;
+ setHeight(lines * fontMetrics()->lineSpacing());
+ }
+ return height();
}
-void ContentsChatItem::updateLayout() {
- if(!haveLayout()) setLayout(createLayout(QTextOption::WrapAnywhere));
-
- // Now layout
+void ContentsChatItem::doLayout() {
ChatLineModel::WrapList wrapList = data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
if(!wrapList.count()) return; // empty chatitem
int col = finder.nextWrapColumn();
line.setNumColumns(col >= 0 ? col - line.textStart() : layout()->text().length());
line.setPosition(QPointF(0, h));
- h += line.height() + fontMetrics()->leading();
+ h += fontMetrics()->lineSpacing();
}
layout()->endLayout();
}
// NOTE: This method is not threadsafe and not reentrant!
// (RegExps are not constant while matching, and they are static here for efficiency)
-QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() {
+QList<ContentsChatItem::Clickable> ContentsChatItem::findClickables() const {
// For matching URLs
- static QString urlEnd("(?:>|[,.;:]?\\s|\\b)");
- static QString urlChars("(?:[\\w\\-~@/?&=+$()!%#]|[,.;:]\\w)");
+ static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)");
+ static QString urlChars("(?:[,.;:]*[\\w\\-~@/?&=+$()!%#])");
static QRegExp regExp[] = {
// URL
- QRegExp(QString("((?:(?:https?://|s?ftp://|irc://|mailto:)|www)%1+)%2").arg(urlChars, urlEnd)),
+ // QRegExp(QString("((?:https?://|s?ftp://|irc://|mailto:|www\\.)%1+|%1+\\.[a-z]{2,4}(?:?=/%1+|\\b))%2").arg(urlChars, urlEnd)),
+ QRegExp(QString("((?:(?:https?://|s?ftp://|irc://|mailto:)|www)%1+)%2").arg(urlChars, urlEnd), Qt::CaseInsensitive),
// Channel name
// We don't match for channel names starting with + or &, because that gives us a lot of false positives.
- QRegExp("((?:#|![A-Z0-9]{5})[^,:\\s]+(?::[^,:\\s]+)?)\\b")
+ QRegExp("((?:#|![A-Z0-9]{5})[^,:\\s]+(?::[^,:\\s]+)?)\\b", Qt::CaseInsensitive)
// TODO: Nicks, we'll need a filtering for only matching known nicknames further down if we do this
};
type = -1;
minidx = str.length();
for(int i = 0; i < regExpCount; i++) {
- if(matches[i] < 0 || idx < matchEnd[i] || matchEnd[i] >= str.length()) continue;
- matches[i] = str.indexOf(regExp[i], qMax(matchEnd[i], idx));
- if(matches[i] >= 0) {
- matchEnd[i] = matches[i] + regExp[i].cap(1).length();
- if(matches[i] < minidx) {
- minidx = matches[i];
- type = i;
- }
+ if(matches[i] < 0 || matchEnd[i] > str.length()) continue;
+ if(idx >= matchEnd[i]) {
+ matches[i] = str.indexOf(regExp[i], qMax(matchEnd[i], idx));
+ if(matches[i] >= 0) matchEnd[i] = matches[i] + regExp[i].cap(1).length();
+ }
+ if(matches[i] >= 0 && matches[i] < minidx) {
+ minidx = matches[i];
+ type = i;
}
}
if(type >= 0) {
idx = matchEnd[type];
+ if(type == Clickable::Url && str.at(idx-1) == ')') { // special case: closing paren only matches if we had an open one
+ if(!str.mid(matches[type], matchEnd[type]-matches[type]).contains('(')) matchEnd[type]--;
+ }
result.append(Clickable((Clickable::Type)type, matches[type], matchEnd[type] - matches[type]));
}
} while(type >= 0);
QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const {
// mark a clickable if hovered upon
QVector<QTextLayout::FormatRange> fmt;
- if(layoutData()->currentClickable.isValid()) {
- Clickable click = layoutData()->currentClickable;
+ if(privateData()->currentClickable.isValid()) {
+ Clickable click = privateData()->currentClickable;
QTextLayout::FormatRange f;
f.start = click.start;
f.length = click.length;
return fmt;
}
-void ContentsChatItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
- // FIXME dirty and fast hack to make http:// urls klickable
+void ContentsChatItem::endHoverMode() {
+ if(hasPrivateData()) {
+ if(privateData()->currentClickable.isValid()) {
+ setCursor(Qt::ArrowCursor);
+ privateData()->currentClickable = Clickable();
+ }
+ clearWebPreview();
+ update();
+ }
+}
- QRegExp regex("\\b([hf]t{1,2}ps?://[^\\s]+)\\b");
- QString str = data(ChatLineModel::DisplayRole).toString();
- int idx = posToCursor(event->pos());
- int mi = 0;
- do {
- mi = regex.indexIn(str, mi);
- if(mi < 0) break;
- if(idx >= mi && idx < mi + regex.matchedLength()) {
- QDesktopServices::openUrl(QUrl(regex.capturedTexts()[1]));
- break;
+void ContentsChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+ privateData()->hasDragged = false;
+ ChatItem::mousePressEvent(event);
+}
+
+void ContentsChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+ if(!event->buttons() && !privateData()->hasDragged) {
+ // got a click
+ Clickable click = privateData()->currentClickable;
+ if(click.isValid()) {
+ QString str = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
+ switch(click.type) {
+ case Clickable::Url:
+ if(!str.contains("://"))
+ str = "http://" + str;
+ QDesktopServices::openUrl(str);
+ break;
+ case Clickable::Channel:
+ // TODO join or whatever...
+ break;
+ default:
+ break;
+ }
}
- mi += regex.matchedLength();
- } while(mi >= 0);
- event->accept();
+ }
+ ChatItem::mouseReleaseEvent(event);
}
void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
// mouse move events always mean we're not hovering anymore...
- if(layoutData()->currentClickable.isValid()) {
- layoutData()->currentClickable = Clickable();
- update();
- }
+ endHoverMode();
+ // also, check if we have dragged the mouse
+ if(hasPrivateData() && !privateData()->hasDragged && event->buttons() & Qt::LeftButton
+ && (event->buttonDownScreenPos(Qt::LeftButton) - event->screenPos()).manhattanLength() >= QApplication::startDragDistance())
+ privateData()->hasDragged = true;
ChatItem::mouseMoveEvent(event);
}
-void ContentsChatItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event) {
- //layoutData()->currentClickable = event->pos();
- event->accept();
-}
-
void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
- if(layoutData()->currentClickable.isValid()) {
- layoutData()->currentClickable = Clickable();
- update();
- }
+ endHoverMode();
event->accept();
}
void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+ bool onClickable = false;
qint16 idx = posToCursor(event->pos());
- for(int i = 0; i < layoutData()->clickables.count(); i++) {
- Clickable click = layoutData()->clickables.at(i);
+ for(int i = 0; i < privateData()->clickables.count(); i++) {
+ Clickable click = privateData()->clickables.at(i);
if(idx >= click.start && idx < click.start + click.length) {
- layoutData()->currentClickable = click;
- update();
+ if(click.type == Clickable::Url) {
+ onClickable = true;
+ showWebPreview(click);
+ } else if(click.type == Clickable::Channel) {
+ // TODO: don't make clickable if it's our own name
+ //onClickable = true; //FIXME disabled for now
+ }
+ if(onClickable) {
+ setCursor(Qt::PointingHandCursor);
+ privateData()->currentClickable = click;
+ update();
+ break;
+ }
}
}
+ if(!onClickable) endHoverMode();
event->accept();
}
+void ContentsChatItem::showWebPreview(const Clickable &click) {
+#ifdef HAVE_WEBKIT
+ QTextLine line = layout()->lineForTextPosition(click.start);
+ qreal x = line.cursorToX(click.start);
+ qreal width = line.cursorToX(click.start + click.length) - x;
+ qreal height = line.height();
+ qreal y = height * line.lineNumber();
+
+ QPointF topLeft = scenePos() + QPointF(x, y);
+ QRectF urlRect = QRectF(topLeft.x(), topLeft.y(), width, height);
+
+ QString url = data(ChatLineModel::DisplayRole).toString().mid(click.start, click.length);
+ if(!url.contains("://"))
+ url = "http://" + url;
+ chatScene()->loadWebPreview(this, url, urlRect);
+#endif
+}
+
+void ContentsChatItem::clearWebPreview() {
+#ifdef HAVE_WEBKIT
+ chatScene()->clearWebPreview(this);
+#endif
+}
+
/*************************************************************************************************/
ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item)
layout(0),
wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
wordidx(0),
- lastwrapcol(0),
- lastwrappos(0),
- w(0)
+ lineCount(0),
+ choppedTrailing(0)
{
}
}
qint16 ContentsChatItem::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;
+ if(wordidx >= wrapList.count())
+ return -1;
+
+ lineCount++;
+ qreal targetWidth = lineCount * item->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()) {
+ layout = item->createLayout(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;
}
- w += wrapList.at(wordidx).trailing;
- wordidx++;
}
+ Q_ASSERT(false);
return -1;
}
+
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