X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatitem.cpp;h=e4580559c331e7fd8a9f5c8c317e2dbf2c2be89a;hp=2e3e22d83c173c032dff470f5ca8e64cb5298a26;hb=148f1953967cdd1fc8febbdfd9bb103335dc8c91;hpb=8699dd758516d0ded076811e8ea656adc95e69d0

diff --git a/src/qtui/chatitem.cpp b/src/qtui/chatitem.cpp
index 2e3e22d8..e4580559 100644
--- a/src/qtui/chatitem.cpp
+++ b/src/qtui/chatitem.cpp
@@ -18,102 +18,460 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
+#include <QApplication>
+#include <QClipboard>
+#include <QDesktopServices>
 #include <QFontMetrics>
 #include <QGraphicsSceneMouseEvent>
-#include <QTextCursor>
-#include <QTextDocument>
-
-#include <QtGui>
+#include <QPainter>
+#include <QPalette>
+#include <QTextLayout>
 
 #include "chatitem.h"
+#include "chatlinemodel.h"
+#include "qtui.h"
 
-ChatItem::ChatItem(QGraphicsItem *parent) : QGraphicsItem(parent) {
-  _width = 0;
-  //if(_wrapMode == WordWrap) {
-  //  setFlags(QGraphicsItem::ItemClipsToShape, true);
-  //}
+ChatItem::ChatItem(ChatLineModel::ColumnType col, QAbstractItemModel *model, QGraphicsItem *parent)
+  : QGraphicsItem(parent),
+    _fontMetrics(0),
+    _selectionMode(NoSelection),
+    _selectionStart(-1),
+    _layout(0)
+{
+  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);
 }
 
 ChatItem::~ChatItem() {
+  delete _layout;
+}
 
+QVariant ChatItem::data(int role) const {
+  QModelIndex index = model()->index(row(), column());
+  if(!index.isValid()) {
+    qWarning() << "ChatItem::data(): model index is invalid!" << index;
+    return QVariant();
+  }
+  return model()->data(index, role);
 }
 
-void ChatItem::setWidth(int w) {
-  _width = w;
-  layout();
+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;
 }
 
-void ChatItem::setTextOption(const QTextOption &option) {
-  _textOption = option;
-  layout();
+qreal ChatItem::computeHeight() {
+  return fontMetrics()->lineSpacing(); // only contents can be multi-line
 }
 
-QTextOption ChatItem::textOption() const {
-  return _textOption;
+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<QTextLayout::FormatRange> formatRanges
+         = QtUi::style()->toTextLayoutList(data(MessageModel::FormatRole).value<UiStyle::FormatList>(), layout->text().length());
+  layout->setAdditionalFormats(formatRanges);
+  return layout;
 }
 
-QString ChatItem::text() const {
-  return _layout.text();
+void ChatItem::updateLayout() {
+  if(!haveLayout())
+    setLayout(createLayout(QTextOption::WrapAnywhere, Qt::AlignLeft));
+
+  layout()->beginLayout();
+  QTextLine line = layout()->createLine();
+  if(line.isValid()) {
+    line.setLineWidth(width());
+    line.setPosition(QPointF(0,0));
+  }
+  layout()->endLayout();
 }
 
-void ChatItem::setText(const UiStyle::StyledText &text) {
-  _layout.setText(text.text);
-  _layout.setAdditionalFormats(text.formats);
-  layout();
+void ChatItem::clearLayout() {
+  delete _layout;
+  _layout = 0;
 }
 
-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());
+// 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();
     }
-    height += leading;
-    line.setPosition(QPoint(0, height));
-    height += line.height();
+    formats.append(selectFmt);
   }
-  _layout.endLayout();
+  layout()->draw(painter, QPointF(0,0), formats, boundingRect());
+}
+
+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()) {
+      return line.xToCursor(pos.x(), QTextLine::CursorOnCharacter);
+    }
+  }
+  return 0;
+}
+
+void ChatItem::setFullSelection() {
+  if(_selectionMode != FullSelection) {
+    _selectionMode = FullSelection;
+    update();
+  }
+}
+
+void ChatItem::clearSelection() {
+  _selectionMode = NoSelection;
   update();
 }
 
-QRectF ChatItem::boundingRect() const {
-  return _layout.boundingRect();
+void ChatItem::continueSelecting(const QPointF &pos) {
+  _selectionMode = PartialSelection;
+  _selectionEnd = posToCursor(pos);
+  update();
 }
 
-void ChatItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
-  Q_UNUSED(option); Q_UNUSED(widget);
-  _layout.draw(painter, QPointF(0, 0));
+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);
+  }
+
+  if(!haveLayout())
+    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 = fontMetrics()->lineSpacing();
+    qreal y = height * line.lineNumber();
+    resultList << QRectF(x, y, width, height);
+  }
+  return resultList;
 }
 
-/*
-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);
+void ChatItem::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+  if(event->buttons() == Qt::LeftButton) {
+    chatScene()->setSelectingItem(this);
+    _selectionStart = _selectionEnd = posToCursor(event->pos());
+    _selectionMode = NoSelection; // will be set to PartialSelection by mouseMoveEvent
+    update();
+    event->accept();
+  } else {
     event->ignore();
-  } else QGraphicsTextItem::mouseMoveEvent(event);
+  }
+}
+
+void ChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+  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 {
+    event->ignore();
+  }
+}
+
+void ChatItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+  if(_selectionMode != NoSelection && !event->buttons() & Qt::LeftButton) {
+    _selectionEnd = posToCursor(event->pos());
+    QString selection
+        = data(MessageModel::DisplayRole).toString().mid(qMin(_selectionStart, _selectionEnd), qAbs(_selectionStart - _selectionEnd));
+    chatScene()->putToClipboard(selection);
+    event->accept();
+  } else {
+    event->ignore();
+  }
 }
-*/
 
+/*************************************************************************************************/
 
+/*************************************************************************************************/
 
+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)
+{
+
+}
+
+ContentsChatItem::~ContentsChatItem() {
+  delete _layoutData;
+}
+
+qreal ContentsChatItem::computeHeight() {
+  int lines = 1;
+  WrapColumnFinder finder(this);
+  while(finder.nextWrapColumn() > 0) lines++;
+  return lines * fontMetrics()->lineSpacing();
+}
+
+void ContentsChatItem::setLayout(QTextLayout *layout) {
+  if(!_layoutData) {
+    _layoutData = new LayoutData;
+    _layoutData->clickables = findClickables();
+  } else {
+    delete _layoutData->layout;
+  }
+  _layoutData->layout = layout;
+}
+
+void ContentsChatItem::clearLayout() {
+  delete _layoutData;
+  _layoutData = 0;
+}
+
+void ContentsChatItem::updateLayout() {
+  if(!haveLayout()) setLayout(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();
+}
+
+// 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+)%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 || 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(type >= 0) {
+      idx = 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(layoutData()->currentClickable.isValid()) {
+    Clickable click = layoutData()->currentClickable;
+    QTextLayout::FormatRange f;
+    f.start = click.start;
+    f.length = click.length;
+    f.format.setFontUnderline(true);
+    fmt.append(f);
+  }
+  return fmt;
+}
+
+void ContentsChatItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
+  // FIXME dirty and fast hack to make http:// urls klickable
+
+  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;
+    }
+    mi += regex.matchedLength();
+  } while(mi >= 0);
+  event->accept();
+}
+
+void ContentsChatItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+  // mouse move events always mean we're not hovering anymore...
+  if(layoutData()->currentClickable.isValid()) {
+    layoutData()->currentClickable = Clickable();
+    update();
+  }
+  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();
+  }
+  event->accept();
+}
+
+void ContentsChatItem::hoverMoveEvent(QGraphicsSceneHoverEvent *event) {
+  qint16 idx = posToCursor(event->pos());
+  for(int i = 0; i < layoutData()->clickables.count(); i++) {
+    Clickable click = layoutData()->clickables.at(i);
+    if(idx >= click.start && idx < click.start + click.length) {
+      layoutData()->currentClickable = click;
+      update();
+    }
+  }
+  event->accept();
+}
+
+/*************************************************************************************************/
+
+ContentsChatItem::WrapColumnFinder::WrapColumnFinder(ChatItem *_item)
+  : item(_item),
+    layout(0),
+    wrapList(item->data(ChatLineModel::WrapListRole).value<ChatLineModel::WrapList>()),
+    wordidx(0),
+    lastwrapcol(0),
+    lastwrappos(0),
+    w(0)
+{
+}
+
+ContentsChatItem::WrapColumnFinder::~WrapColumnFinder() {
+  delete layout;
+}
+
+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;
+    }
+    w += wrapList.at(wordidx).trailing;
+    wordidx++;
+  }
+  return -1;
+}