X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatitem.cpp;h=ac2558ecddc7444eff7dd46c4e4ee319cb564273;hp=5d1bcb7a6063b93dfc41110bc93e3e408b48c1ea;hb=429f2aad1e22ba8410f4ea63471fcfc9887c55aa;hpb=ae374ec02b44f508d207d2e69d800f26b34e0d9d

diff --git a/src/qtui/chatitem.cpp b/src/qtui/chatitem.cpp
index 5d1bcb7a..ac2558ec 100644
--- a/src/qtui/chatitem.cpp
+++ b/src/qtui/chatitem.cpp
@@ -20,6 +20,7 @@
 
 #include <QApplication>
 #include <QClipboard>
+#include <QDesktopServices>
 #include <QFontMetrics>
 #include <QGraphicsSceneMouseEvent>
 #include <QPainter>
@@ -29,45 +30,31 @@
 #include "chatitem.h"
 #include "chatlinemodel.h"
 #include "qtui.h"
+#include "qtuistyle.h"
 
-ChatItem::ChatItem(const QPersistentModelIndex &index_, QGraphicsItem *parent) : QGraphicsItem(parent), _index(index_) {
-  _fontMetrics = QtUi::style()->fontMetrics(data(ChatLineModel::FormatRole).value<UiStyle::FormatList>().at(0).second);
-  _layout = 0;
-  _lines = 0;
-  _selectionStart = -1;
-  _selectionMode = NoSelection;
+ChatItem::ChatItem(const qreal &width, const qreal &height, const QPointF &pos, QGraphicsItem *parent)
+  : QGraphicsItem(parent),
+    _data(0),
+    _boundingRect(0, 0, width, height),
+    _selectionMode(NoSelection),
+    _selectionStart(-1)
+{
+  setAcceptHoverEvents(true);
+  setZValue(20);
+  setPos(pos);
 }
 
 ChatItem::~ChatItem() {
-  delete _layout;
+  delete _data;
 }
 
 QVariant ChatItem::data(int role) const {
-  if(!_index.isValid()) {
-    qWarning() << "ChatItem::data(): Model index is invalid!" << _index;
+  QModelIndex index = model()->index(row(), column());
+  if(!index.isValid()) {
+    qWarning() << "ChatItem::data(): model index is invalid!" << index;
     return QVariant();
   }
-  return _index.data(role);
-}
-
-qreal ChatItem::setWidth(qreal w) {
-  if(w == _boundingRect.width()) return _boundingRect.height();
-  prepareGeometryChange();
-  _boundingRect.setWidth(w);
-  qreal h = computeHeight();
-  _boundingRect.setHeight(h);
-  if(haveLayout()) updateLayout();
-  return h;
-}
-
-qreal ChatItem::computeHeight() {
-  if(data(ChatLineModel::ColumnTypeRole).toUInt() != ChatLineModel::ContentsColumn)
-    return fontMetrics()->lineSpacing(); // only contents can be multi-line
-
-  _lines = 1;
-  WrapColumnFinder finder(this);
-  while(finder.nextWrapColumn() > 0) _lines++;
-  return _lines * fontMetrics()->lineSpacing();
+  return model()->data(index, role);
 }
 
 QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignment alignment) {
@@ -85,65 +72,37 @@ QTextLayout *ChatItem::createLayout(QTextOption::WrapMode wrapMode, Qt::Alignmen
 }
 
 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(0,0));
-        }
-        _layout->endLayout();
-      }
-      break;
-    case ChatLineModel::ContentsColumn: {
-      if(!haveLayout()) _layout = createLayout(QTextOption::WrapAnywhere);
-
-      // Now layout
-      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();
-        line.setNumColumns(col >= 0 ? col - line.textStart() : _layout->text().length());
-        line.setPosition(QPointF(0, h));
-        h += line.height() + fontMetrics()->leading();
-      }
-      _layout->endLayout();
-    }
-    break;
+  if(!privateData()) {
+    setPrivateData(new ChatItemPrivate(createLayout()));
   }
+  QTextLayout *layout_ = layout();
+  layout_->beginLayout();
+  QTextLine line = layout_->createLine();
+  if(line.isValid()) {
+    line.setLineWidth(width());
+    line.setPosition(QPointF(0,0));
+  }
+  layout_->endLayout();
 }
 
 void ChatItem::clearLayout() {
-  delete _layout;
-  _layout = 0;
+  delete _data;
+  _data = 0;
 }
 
 // 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();
+  if(!hasLayout())
+    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();
-  } // TODO: add selection format here
-  QVector<QTextLayout::FormatRange> formats;
+  //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));
@@ -157,15 +116,32 @@ void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
     }
     formats.append(selectFmt);
   }
-  _layout->draw(painter, QPointF(0,0), formats, boundingRect());
+  layout()->draw(painter, QPointF(0,0), formats, boundingRect());
+
+  // Debuging Stuff
+  // uncomment the following lines to draw the bounding rect and the row number in alternating colors
+//   if(row() % 2)
+//     painter->setPen(Qt::red);
+//   else
+//     painter->setPen(Qt::blue);
+//   QString rowString = QString::number(row());
+//   QRect rowRect = painter->fontMetrics().boundingRect(rowString);
+//   QPointF topPoint = _boundingRect.topLeft();
+//   topPoint.ry() += rowRect.height();
+//   painter->drawText(topPoint, rowString);
+//   QPointF bottomPoint = _boundingRect.bottomRight();
+//   bottomPoint.rx() -= rowRect.width();
+//   painter->drawText(bottomPoint, rowString);
+//   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(!hasLayout())
+    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);
     }
@@ -174,8 +150,10 @@ qint16 ChatItem::posToCursor(const QPointF &pos) {
 }
 
 void ChatItem::setFullSelection() {
-  _selectionMode = FullSelection;
-  update();
+  if(_selectionMode != FullSelection) {
+    _selectionMode = FullSelection;
+    update();
+  }
 }
 
 void ChatItem::clearSelection() {
@@ -183,11 +161,50 @@ void ChatItem::clearSelection() {
   update();
 }
 
+void ChatItem::continueSelecting(const QPointF &pos) {
+  _selectionMode = PartialSelection;
+  _selectionEnd = posToCursor(pos);
+  update();
+}
+
+QList<QRectF> ChatItem::findWords(const QString &searchWord, Qt::CaseSensitivity caseSensitive) {
+  QList<QRectF> resultList;
+  const QAbstractItemModel *model_ = model();
+  if(!model_)
+    return resultList;
+
+  QString plainText = model_->data(model_->index(row(), column()), MessageModel::DisplayRole).toString();
+  QList<int> indexList;
+  int searchIdx = plainText.indexOf(searchWord, 0, caseSensitive);
+  while(searchIdx != -1) {
+    indexList << searchIdx;
+    searchIdx = plainText.indexOf(searchWord, searchIdx + 1, caseSensitive);
+  }
+
+  bool hadLayout = hasLayout();
+  if(!hadLayout)
+    updateLayout();
+
+  foreach(int idx, indexList) {
+    QTextLine line = layout()->lineForTextPosition(idx);
+    qreal x = line.cursorToX(idx);
+    qreal width = line.cursorToX(idx + searchWord.count()) - x;
+    qreal height = line.height();
+    qreal y = height * line.lineNumber();
+    resultList << QRectF(x, y, width, height);
+  }
+
+  if(!hadLayout)
+    clearLayout();
+  return resultList;
+}
+
 void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
-  if(event->buttons() & Qt::LeftButton) {
-    chatScene()->setSelectingItem(this);  // removes earlier selection if exists
+  if(event->buttons() == Qt::LeftButton) {
+    chatScene()->setSelectingItem(this);
     _selectionStart = _selectionEnd = posToCursor(event->pos());
-    _selectionMode = PartialSelection;
+    _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
+    update();
     event->accept();
   } else {
     event->ignore();
@@ -195,71 +212,293 @@ void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
 }
 
 void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
-  if(contains(event->pos())) {
-    _selectionEnd = posToCursor(event->pos());
-    update();
+  if(event->buttons() == Qt::LeftButton) {
+    if(contains(event->pos())) {
+      qint16 end = posToCursor(event->pos());
+      if(end != _selectionEnd) {
+        _selectionEnd = end;
+        _selectionMode = (_selectionStart != _selectionEnd ? PartialSelection : NoSelection);
+        update();
+      }
+    } else {
+      setFullSelection();
+      chatScene()->startGlobalSelection(this, event->pos());
+    }
+    event->accept();
   } else {
-    setFullSelection();
-    ungrabMouse();
-    chatScene()->startGlobalSelection(this);
+    event->ignore();
   }
 }
 
 void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
-  if(_selectionMode != NoSelection) {
+  if(_selectionMode != NoSelection && !event->buttons() & Qt::LeftButton) {
     _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
+    chatScene()->putToClipboard(selection);
     event->accept();
   } else {
     event->ignore();
   }
 }
 
+// ************************************************************
+// SenderChatItem
+// ************************************************************
+
+// ************************************************************
+// 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()) {
+    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(!privateData()) {
+    ContentsChatItemPrivate *data = new ContentsChatItemPrivate(createLayout(QTextOption::WrapAnywhere),
+								findClickables());
+    // data->clickables = findClickables();
+    setPrivateData(data);
+  }
+
+  // Now layout
+  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();
+    line.setNumColumns(col >= 0 ? col - line.textStart() : layout()->text().length());
+    line.setPosition(QPointF(0, h));
+    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() {
+  // For matching URLs
+  static QString urlEnd("(?:>|[,.;:\"]*\\s|\\b|$)");
+  static QString urlChars("(?:[\\w\\-~@/?&=+$()!%#]|[,.;:]\\w)");
+
+  static QRegExp regExp[] = {
+    // URL
+    // 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)),
+
+    // 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")
+
+    // TODO: Nicks, we'll need a filtering for only matching known nicknames further down if we do this
+  };
+
+  static const int regExpCount = 2;  // number of regexps in the array above
+
+  qint16 matches[] = { 0, 0, 0 };
+  qint16 matchEnd[] = { 0, 0, 0 };
+
+  QString str = data(ChatLineModel::DisplayRole).toString();
+
+  QList<Clickable> result;
+  qint16 idx = 0;
+  qint16 minidx;
+  int type = -1;
+
+  do {
+    type = -1;
+    minidx = str.length();
+    for(int i = 0; i < regExpCount; 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);
+
+  /* testing
+  if(!result.isEmpty()) qDebug() << str;
+  foreach(Clickable click, result) {
+    qDebug() << str.mid(click.start, click.length);
+  }
+  */
+  return result;
+}
+
+QVector<QTextLayout::FormatRange> ContentsChatItem::additionalFormats() const {
+  // mark a clickable if hovered upon
+  QVector<QTextLayout::FormatRange> fmt;
+  if(privateData()->currentClickable.isValid()) {
+    Clickable click = privateData()->currentClickable;
+    QTextLayout::FormatRange f;
+    f.start = click.start;
+    f.length = click.length;
+    f.format.setFontUnderline(true);
+    fmt.append(f);
+  }
+  return fmt;
+}
+
+void ContentsChatItem::endHoverMode() {
+  if(privateData()->currentClickable.isValid()) {
+    setCursor(Qt::ArrowCursor);
+    privateData()->currentClickable = Clickable();
+    update();
+  }
+}
+
+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:
+          QDesktopServices::openUrl(str);
+          break;
+        case Clickable::Channel:
+          // TODO join or whatever...
+          break;
+        default:
+          break;
+      }
+    }
+  }
+  ChatItem::mouseReleaseEvent(event);
+}
+
+void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+  // mouse move events always mean we're not hovering anymore...
+  endHoverMode();
+  // also, check if we have dragged the mouse
+  if(!privateData()->hasDragged && event->buttons() & Qt::LeftButton
+    && (event->buttonDownScreenPos(Qt::LeftButton) - event->screenPos()).manhattanLength() >= QApplication::startDragDistance())
+    privateData()->hasDragged = true;
+  ChatItem::mouseMoveEvent(event);
+}
+
+void ContentsChatItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event) {
+  endHoverMode();
+  event->accept();
+}
+
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+  bool onClickable = false;
+  qint16 idx = posToCursor(event->pos());
+  for(int i = 0; i < privateData()->clickables.count(); i++) {
+    Clickable click = privateData()->clickables.at(i);
+    if(idx >= click.start && idx < click.start + click.length) {
+      if(click.type == Clickable::Url)
+        onClickable = true;
+      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();
+}
+
 /*************************************************************************************************/
 
-ChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item) : item(_item) {
-  wrapList = item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>();
-  wordidx = 0;
-  layout = 0;
-  lastwrapcol = 0;
-  lastwrappos = 0;
-  w = 0;
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item)
+  : item(_item),
+    layout(0),
+    wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+    wordidx(0),
+    lineCount(0),
+    choppedTrailing(0),
+    lastwrapcol(0),
+    lastwrappos(0),
+    width(0)
+{
 }
 
-ChatItem::WrapColumnFinder::~WrapColumnFinder() {
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
   delete layout;
 }
 
-qint16 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;
+qint16 ContentsChatItem::WrapColumnFinder::nextWrapColumn() {
+  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;
+
+  while(true) {
+    if(start == end) {
+      wordidx = start;
+      if(wordidx > 0) {
+	const ChatLineModel::Word &prevWord = wrapList.at(wordidx - 1);
+	choppedTrailing += prevWord.trailing - (targetWidth - prevWord.endX);
       }
-      // 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;
+      return wrapList.at(wordidx).start;
+    }
+    qint16 pivot = (end + start) / 2;
+    if(wrapList.at(pivot).endX > targetWidth && wordidx != pivot) {
+      end = pivot;
+    } else {
+      start = pivot + 1;
     }
-    w += wrapList.at(wordidx).trailing;
-    wordidx++;
   }
   return -1;
 }
+