X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fuisupport%2Fmultilineedit.cpp;h=a0334652fc86258e98a2985339775fc4f580539a;hp=7bc6c2351966f8fb17c6c5868b53da2b16a01bf0;hb=96d0ee7692b48a8211bde377be970ed6e8cb8021;hpb=4082975d4fc1bca330f5f09dd7212ba87a598df7

diff --git a/src/uisupport/multilineedit.cpp b/src/uisupport/multilineedit.cpp
index 7bc6c235..a0334652 100644
--- a/src/uisupport/multilineedit.cpp
+++ b/src/uisupport/multilineedit.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005/06 by the Quassel Project                          *
+ *   Copyright (C) 2005-2010 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -23,6 +23,7 @@
 #include <QMessageBox>
 #include <QScrollBar>
 
+#include "actioncollection.h"
 #include "bufferview.h"
 #include "graphicalui.h"
 #include "multilineedit.h"
@@ -31,19 +32,14 @@
 const int leftMargin = 3;
 
 MultiLineEdit::MultiLineEdit(QWidget *parent)
-  :
-#ifdef HAVE_KDE
-    KTextEdit(parent),
-#else
-    QTextEdit(parent),
-#endif
-    idx(0),
+  : MultiLineEditParent(parent),
+    _idx(0),
     _mode(SingleLine),
-    _wrapMode(QTextOption::NoWrap),
-    _numLines(1),
+    _singleLine(true),
     _minHeight(1),
     _maxHeight(5),
     _scrollBarsEnabled(true),
+    _pasteProtectionEnabled(true),
     _lastDocumentHeight(-1)
 {
 #if QT_VERSION >= 0x040500
@@ -51,19 +47,33 @@ MultiLineEdit::MultiLineEdit(QWidget *parent)
 #endif
 
   setAcceptRichText(false);
-  setWordWrapMode(QTextOption::NoWrap);
 #ifdef HAVE_KDE
   enableFindReplace(false);
 #endif
 
-  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-
   setMode(SingleLine);
-
+  setWordWrapEnabled(false);
   reset();
 
   connect(this, SIGNAL(textChanged()), this, SLOT(on_textChanged()));
+
+  _mircColorMap["00"] = "#ffffff";
+  _mircColorMap["01"] = "#000000";
+  _mircColorMap["02"] = "#000080";
+  _mircColorMap["03"] = "#008000";
+  _mircColorMap["04"] = "#ff0000";
+  _mircColorMap["05"] = "#800000";
+  _mircColorMap["06"] = "#800080";
+  _mircColorMap["07"] = "#ffa500";
+  _mircColorMap["08"] = "#ffff00";
+  _mircColorMap["09"] = "#00ff00";
+  _mircColorMap["10"] = "#008080";
+  _mircColorMap["11"] = "#00ffff";
+  _mircColorMap["12"] = "#4169e1";
+  _mircColorMap["13"] = "#ff00ff";
+  _mircColorMap["14"] = "#808080";
+  _mircColorMap["15"] = "#c0c0c0";
+
 }
 
 MultiLineEdit::~MultiLineEdit() {
@@ -71,7 +81,7 @@ MultiLineEdit::~MultiLineEdit() {
 
 void MultiLineEdit::setCustomFont(const QFont &font) {
   setFont(font);
-  updateGeometry();
+  updateSizeHint();
 }
 
 void MultiLineEdit::setMode(Mode mode) {
@@ -81,20 +91,12 @@ void MultiLineEdit::setMode(Mode mode) {
   _mode = mode;
 }
 
-void MultiLineEdit::setWrapMode(QTextOption::WrapMode wrapMode) {
-  if(_wrapMode == wrapMode)
-    return;
-
-  _wrapMode = wrapMode;
-  setWordWrapMode(wrapMode);
-}
-
 void MultiLineEdit::setMinHeight(int lines) {
   if(lines == _minHeight)
     return;
 
   _minHeight = lines;
-  updateGeometry();
+  updateSizeHint();
 }
 
 void MultiLineEdit::setMaxHeight(int lines) {
@@ -102,21 +104,14 @@ void MultiLineEdit::setMaxHeight(int lines) {
     return;
 
   _maxHeight = lines;
-  updateGeometry();
+  updateSizeHint();
 }
 
-void MultiLineEdit::enableScrollBars(bool enable) {
+void MultiLineEdit::setScrollBarsEnabled(bool enable) {
   if(_scrollBarsEnabled == enable)
     return;
 
   _scrollBarsEnabled = enable;
-  if(enable && numLines() > 1) {
-    // the vertical scrollbar must be enabled/disabled manually;
-    // ScrollBarAsNeeded leads to flicker because of the dynamic widget resize
-    setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
-  } else {
-    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  }
   updateScrollBars();
 }
 
@@ -127,20 +122,27 @@ void MultiLineEdit::updateScrollBars() {
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
   else
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+  if(!_scrollBarsEnabled || isSingleLine())
+    setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+  else
+    setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 }
 
 void MultiLineEdit::resizeEvent(QResizeEvent *event) {
-  updateScrollBars();
   QTextEdit::resizeEvent(event);
+  updateSizeHint();
+  updateScrollBars();
 }
 
-QSize MultiLineEdit::sizeHint() const {
+void MultiLineEdit::updateSizeHint() {
   QFontMetrics fm(font());
-  int _minPixelHeight = fm.lineSpacing() * _minHeight;
-  int _maxPixelHeight = fm.lineSpacing() * _maxHeight;
+  int minPixelHeight = fm.lineSpacing() * _minHeight;
+  int maxPixelHeight = fm.lineSpacing() * _maxHeight;
+  int scrollBarHeight = horizontalScrollBar()->isVisible() ? horizontalScrollBar()->height() : 0;
 
   // use the style to determine a decent size
-  int h = qMin(qMax((int)document()->size().height(), _minPixelHeight), _maxPixelHeight) + 2 * frameWidth();
+  int h = qMin(qMax((int)document()->size().height() + scrollBarHeight, minPixelHeight), maxPixelHeight) + 2 * frameWidth();
   QStyleOptionFrameV2 opt;
   opt.initFrom(this);
   opt.rect = QRect(0, 0, 100, h);
@@ -148,31 +150,66 @@ QSize MultiLineEdit::sizeHint() const {
   opt.midLineWidth = midLineWidth();
   opt.state |= QStyle::State_Sunken;
   QSize s = style()->sizeFromContents(QStyle::CT_LineEdit, &opt, QSize(100, h).expandedTo(QApplication::globalStrut()), this);
-  return s;
+  if(s != _sizeHint) {
+    _sizeHint = s;
+    updateGeometry();
+  }
+}
+
+QSize MultiLineEdit::sizeHint() const {
+  if(!_sizeHint.isValid()) {
+    MultiLineEdit *that = const_cast<MultiLineEdit *>(this);
+    that->updateSizeHint();
+  }
+  return _sizeHint;
 }
 
 QSize MultiLineEdit::minimumSizeHint() const {
   return sizeHint();
 }
 
+void MultiLineEdit::setEmacsMode(bool enable) {
+  _emacsMode = enable;
+}
+
+void MultiLineEdit::setSpellCheckEnabled(bool enable) {
+#ifdef HAVE_KDE
+  setCheckSpellingEnabled(enable);
+#else
+  Q_UNUSED(enable)
+#endif
+}
+
+void MultiLineEdit::setWordWrapEnabled(bool enable) {
+  setLineWrapMode(enable? WidgetWidth : NoWrap);
+  updateSizeHint();
+}
+
+void MultiLineEdit::setPasteProtectionEnabled(bool enable, QWidget *) {
+  _pasteProtectionEnabled = enable;
+}
+
 void MultiLineEdit::historyMoveBack() {
-  addToHistory(text(), true);
+  addToHistory(convertRichtextToMircCodes(), true);
 
-  if(idx > 0) {
-    idx--;
+  if(_idx > 0) {
+    _idx--;
     showHistoryEntry();
   }
 }
 
 void MultiLineEdit::historyMoveForward() {
-  addToHistory(text(), true);
+  addToHistory(convertRichtextToMircCodes(), true);
 
-  if(idx < history.count()) {
-    idx++;
-    if(idx < history.count() || tempHistory.contains(idx)) // tempHistory might have an entry for idx == history.count() + 1
+  if(_idx < _history.count()) {
+    _idx++;
+    if(_idx < _history.count() || _tempHistory.contains(_idx)) // tempHistory might have an entry for idx == history.count() + 1
       showHistoryEntry();
     else
       reset();              // equals clear() in this case
+  } else {
+    addToHistory(convertRichtextToMircCodes());
+    reset();
   }
 }
 
@@ -180,26 +217,42 @@ bool MultiLineEdit::addToHistory(const QString &text, bool temporary) {
   if(text.isEmpty())
     return false;
 
-  Q_ASSERT(0 <= idx && idx <= history.count());
+  Q_ASSERT(0 <= _idx && _idx <= _history.count());
 
   if(temporary) {
     // if an entry of the history is changed, we remember it and show it again at this
     // position until a line was actually sent
     // sent lines get appended to the history
-    if(history.isEmpty() || text != history[idx - (int)(idx == history.count())]) {
-      tempHistory[idx] = text;
+    if(_history.isEmpty() || text != _history[_idx - (int)(_idx == _history.count())]) {
+      _tempHistory[_idx] = text;
       return true;
     }
   } else {
-    if(history.isEmpty() || text != history.last()) {
-      history << text;
-      tempHistory.clear();
+    if(_history.isEmpty() || text != _history.last()) {
+      _history << text;
+      _tempHistory.clear();
       return true;
     }
   }
   return false;
 }
 
+bool MultiLineEdit::event(QEvent *e) {
+  // We need to make sure that global shortcuts aren't eaten
+  if(e->type() == QEvent::ShortcutOverride) {
+    QKeyEvent* event = static_cast<QKeyEvent *>(e);
+    QKeySequence key = QKeySequence(event->key() | event->modifiers());
+    foreach(QAction *action, GraphicalUi::actionCollection()->actions()) {
+      if(action->shortcuts().contains(key)) {
+        e->ignore();
+        return false;
+      }
+    }
+  }
+
+  return MultiLineEditParent::event(e);
+}
+
 void MultiLineEdit::keyPressEvent(QKeyEvent *event) {
   // Workaround the fact that Qt < 4.5 doesn't know InsertLineSeparator yet
 #if QT_VERSION >= 0x040500
@@ -213,72 +266,382 @@ void MultiLineEdit::keyPressEvent(QKeyEvent *event) {
 # endif
 #endif
 
-    if(_mode == SingleLine)
+    if(_mode == SingleLine) {
+      event->accept();
+      on_returnPressed();
       return;
-#ifdef HAVE_KDE
-    KTextEdit::keyPressEvent(event);
-#else
-    QTextEdit::keyPressEvent(event);
-#endif
+    }
+    MultiLineEditParent::keyPressEvent(event);
     return;
   }
 
   switch(event->key()) {
-  case Qt::Key_Up: {
-    event->accept();
-    if(!(event->modifiers() & Qt::ControlModifier)) {
-      int pos = textCursor().position();
-      moveCursor(QTextCursor::Up);
-      if(pos == textCursor().position()) // already on top line -> history
+  case Qt::Key_Up:
+    if(event->modifiers() & Qt::ShiftModifier)
+      break;
+    {
+      event->accept();
+      if(!(event->modifiers() & Qt::ControlModifier)) {
+        int pos = textCursor().position();
+        moveCursor(QTextCursor::Up);
+        if(pos == textCursor().position()) // already on top line -> history
+          historyMoveBack();
+      } else
         historyMoveBack();
-    } else
-      historyMoveBack();
-    break;
-  }
+      return;
+    }
 
-  case Qt::Key_Down: {
-    event->accept();
-    if(!(event->modifiers() & Qt::ControlModifier)) {
-      int pos = textCursor().position();
-      moveCursor(QTextCursor::Down);
-      if(pos == textCursor().position()) // already on bottom line -> history
+  case Qt::Key_Down:
+    if(event->modifiers() & Qt::ShiftModifier)
+      break;
+    {
+      event->accept();
+      if(!(event->modifiers() & Qt::ControlModifier)) {
+        int pos = textCursor().position();
+        moveCursor(QTextCursor::Down);
+        if(pos == textCursor().position()) // already on bottom line -> history
+          historyMoveForward();
+      } else
         historyMoveForward();
-    } else
-      historyMoveForward();
-    break;
-  }
+      return;
+    }
 
   case Qt::Key_Return:
   case Qt::Key_Enter:
   case Qt::Key_Select:
     event->accept();
     on_returnPressed();
-    break;
+    return;
 
-  // We don't want to have the tab key react if no completer is installed 
+  // We don't want to have the tab key react even if no completer is installed
   case Qt::Key_Tab:
     event->accept();
-    break;
+    return;
 
   default:
+    ;
+  }
+
+  if(_emacsMode) {
+    if(event->modifiers() & Qt::ControlModifier) {
+      switch(event->key()) {
+        // move
+      case Qt::Key_A:
+        moveCursor(QTextCursor::StartOfLine);
+        return;
+      case Qt::Key_E:
+        moveCursor(QTextCursor::EndOfLine);
+        return;
+      case Qt::Key_F:
+        moveCursor(QTextCursor::Right);
+        return;
+      case Qt::Key_B:
+        moveCursor(QTextCursor::Left);
+        return;
+
+        // modify
+      case Qt::Key_Y:
+        paste();
+        return;
+      case Qt::Key_K:
+        moveCursor(QTextCursor::EndOfLine, QTextCursor::KeepAnchor);
+        cut();
+        return;
+
+      default:
+        break;
+      }
+    }
+    else if(event->modifiers() & Qt::MetaModifier ||
+            event->modifiers() & Qt::AltModifier)
+    {
+      switch(event->key()) {
+      case Qt::Key_Right:
+        moveCursor(QTextCursor::WordRight);
+        return;
+      case Qt::Key_Left:
+        moveCursor(QTextCursor::WordLeft);
+        return;
+      case Qt::Key_F:
+        moveCursor(QTextCursor::WordRight);
+        return;
+      case Qt::Key_B:
+        moveCursor(QTextCursor::WordLeft);
+        return;
+      case Qt::Key_Less:
+        moveCursor(QTextCursor::Start);
+        return;
+      case Qt::Key_Greater:
+        moveCursor(QTextCursor::End);
+        return;
+
+        // modify
+      case Qt::Key_D:
+        moveCursor(QTextCursor::WordRight, QTextCursor::KeepAnchor);
+        cut();
+        return;
+
+      case Qt::Key_U: // uppercase word
+        moveCursor(QTextCursor::WordRight, QTextCursor::KeepAnchor);
+        textCursor().insertText(textCursor().selectedText().toUpper());
+        return;
+
+      case Qt::Key_L: // lowercase word
+        moveCursor(QTextCursor::WordRight, QTextCursor::KeepAnchor);
+        textCursor().insertText(textCursor().selectedText().toLower());
+        return;
+
+      case Qt::Key_C: { // capitalize word
+        moveCursor(QTextCursor::WordRight, QTextCursor::KeepAnchor);
+        QString const text = textCursor().selectedText();
+        textCursor().insertText(text.left(1).toUpper() + text.mid(1).toLower());
+        return;
+      }
+
+      case Qt::Key_T: { // transpose words
+        moveCursor(QTextCursor::StartOfWord);
+        moveCursor(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
+        QString const word1 = textCursor().selectedText();
+        textCursor().clearSelection();
+        moveCursor(QTextCursor::WordRight);
+        moveCursor(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
+        QString const word2 = textCursor().selectedText();
+        if(!word2.isEmpty() && !word1.isEmpty()) {
+          textCursor().insertText(word1);
+          moveCursor(QTextCursor::WordLeft);
+          moveCursor(QTextCursor::WordLeft);
+          moveCursor(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
+          textCursor().insertText(word2);
+          moveCursor(QTextCursor::WordRight);
+          moveCursor(QTextCursor::EndOfWord);
+        }
+        return;
+      }
+
+      default:
+        break;
+      }
+    }
+  }
+
 #ifdef HAVE_KDE
-    KTextEdit::keyPressEvent(event);
+  KTextEdit::keyPressEvent(event);
 #else
-    QTextEdit::keyPressEvent(event);
+  QTextEdit::keyPressEvent(event);
 #endif
+}
+
+QString MultiLineEdit::convertRichtextToMircCodes() {
+  bool underline, bold, italic, color;
+  QString mircText, mircFgColor, mircBgColor;
+  QTextCursor cursor = textCursor();
+  QTextCursor peekcursor = textCursor();
+  cursor.movePosition(QTextCursor::Start);
+
+  underline = bold = italic = color = false;
+
+  while (cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor)) {
+
+    if (cursor.selectedText() == QString(QChar(QChar::LineSeparator))
+      || cursor.selectedText() == QString(QChar(QChar::ParagraphSeparator))) {
+      if (color) {
+        color = false;
+        mircText.append('\x03');
+      }
+      if (underline) {
+        underline = false;
+        mircText.append('\x1f');
+      }
+      if (italic) {
+        italic = false;
+        mircText.append('\x1d');
+      }
+      if (bold) {
+        bold = false;
+        mircText.append('\x02');
+      }
+      mircText.append('\n');
+    }
+    else {
+      if (!bold && cursor.charFormat().font().bold()) {
+        bold = true;
+        mircText.append('\x02');
+      }
+      if (!italic && cursor.charFormat().fontItalic()) {
+        italic = true;
+        mircText.append('\x1d');
+      }
+      if (!underline && cursor.charFormat().fontUnderline()) {
+        underline = true;
+        mircText.append('\x1f');
+      }
+      if (!color && (cursor.charFormat().foreground().isOpaque() || cursor.charFormat().background().isOpaque())) {
+        color = true;
+        mircText.append('\x03');
+        mircFgColor = _mircColorMap.key(cursor.charFormat().foreground().color().name());
+        mircBgColor = _mircColorMap.key(cursor.charFormat().background().color().name());
+
+        if (mircFgColor.isEmpty()) {
+            mircFgColor = "01"; //use black if the current foreground color can't be converted
+        }
+
+        mircText.append(mircFgColor);
+        if (cursor.charFormat().background().isOpaque())
+          mircText.append("," + mircBgColor);
+      }
+
+      mircText.append(cursor.selectedText());
+
+      peekcursor.setPosition(cursor.position());
+      peekcursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
+
+      if (mircCodesChanged(cursor, peekcursor)) {
+        if (color) {
+          color = false;
+          mircText.append('\x03');
+        }
+        if (underline) {
+          underline = false;
+          mircText.append('\x1f');
+        }
+        if (italic) {
+          italic = false;
+          mircText.append('\x1d');
+        }
+        if (bold) {
+          bold = false;
+          mircText.append('\x02');
+        }
+      }
+    }
+
+    cursor.clearSelection();
+  }
+  if (color) {
+    color = false;
+    mircText.append('\x03');
+  }
+  if (underline) {
+    underline = false;
+    mircText.append('\x1f');
+  }
+  if (italic) {
+    italic = false;
+    mircText.append('\x1d');
   }
+  if (bold) {
+    bold = false;
+    mircText.append('\x02');
+  }
+
+  return mircText;
+}
+
+bool MultiLineEdit::mircCodesChanged(QTextCursor &cursor, QTextCursor &peekcursor) {
+  bool changed = false;
+  if (cursor.charFormat().font().bold() != peekcursor.charFormat().font().bold())
+    changed = true;
+  if (cursor.charFormat().fontItalic() != peekcursor.charFormat().fontItalic())
+    changed = true;
+  if (cursor.charFormat().fontUnderline() != peekcursor.charFormat().fontUnderline())
+    changed = true;
+  if (cursor.charFormat().foreground().color() != peekcursor.charFormat().foreground().color())
+    changed = true;
+  if (cursor.charFormat().background().color() != peekcursor.charFormat().background().color())
+    changed = true;
+  return changed;
+}
+
+QString MultiLineEdit::convertMircCodesToHtml(const QString &text) {
+  QStringList words;
+  QRegExp mircCode = QRegExp("(|||)", Qt::CaseSensitive);
+
+  int posLeft = 0;
+  int posRight = 0;
+
+  for(;;) {
+    posRight = mircCode.indexIn(text, posLeft);
+
+    if(posRight < 0) {
+      words << text.mid(posLeft);
+      break; // no more mirc color codes
+    }
+
+    if (posLeft < posRight) {
+      words << text.mid(posLeft, posRight - posLeft);
+      posLeft = posRight;
+    }
+
+    posRight = text.indexOf(mircCode.cap(), posRight + 1);
+    words << text.mid(posLeft, posRight + 1 - posLeft);
+    posLeft = posRight + 1;
+  }
+
+  for (int i = 0; i < words.count(); i++) {
+      QString style;
+      if (words[i].contains('\x02')) {
+        style.append(" font-weight:600;");
+        words[i].replace('\x02',"");
+      }
+      if (words[i].contains('\x1d')) {
+        style.append(" font-style:italic;");
+        words[i].replace('\x1d',"");
+      }
+      if (words[i].contains('\x1f')) {
+        style.append(" text-decoration: underline;");
+        words[i].replace('\x1f',"");
+      }
+      if (words[i].contains('\x03')) {
+        int pos = words[i].indexOf('\x03');
+        int len = 3;
+        QString fg = words[i].mid(pos + 1,2);
+        QString bg;
+        if (words[i][pos+3] == ',')
+          bg = words[i].mid(pos+4,2);
+
+        style.append(" color:");
+        style.append(_mircColorMap[fg]);
+        style.append(";");
+
+        if (!bg.isEmpty()) {
+          style.append(" background-color:");
+          style.append(_mircColorMap[bg]);
+          style.append(";");
+          len = 6;
+        }
+        words[i].replace(pos, len, "");
+        words[i].replace('\x03',"");
+      }
+      words[i].replace("&","&amp;");
+      words[i].replace("<", "&lt;");
+      words[i].replace(">", "&gt;");
+      words[i].replace("\"", "&quot;");
+      if (style.isEmpty()) {
+        words[i] = "<span>" + words[i] + "</span>";
+      }
+      else {
+        words[i] = "<span style=\"" + style + "\">" + words[i] + "</span>";
+      }
+  }
+  return words.join("").replace("\n","<br />");
 }
 
 void MultiLineEdit::on_returnPressed() {
-  if(!text().isEmpty()) {
-    foreach(const QString &line, text().split('\n', QString::SkipEmptyParts)) {
+  on_returnPressed(convertRichtextToMircCodes());
+}
+
+void MultiLineEdit::on_returnPressed(const QString & text) {
+  if(!text.isEmpty()) {
+    foreach(const QString &line, text.split('\n', QString::SkipEmptyParts)) {
       if(line.isEmpty())
         continue;
       addToHistory(line);
       emit textEntered(line);
     }
     reset();
-    tempHistory.clear();
+    _tempHistory.clear();
+  } else {
+    emit noTextEntered();
   }
 }
 
@@ -286,14 +649,48 @@ void MultiLineEdit::on_textChanged() {
   QString newText = text();
   newText.replace("\r\n", "\n");
   newText.replace('\r', '\n');
-  if(_mode == SingleLine)
-    newText.replace('\n', ' ');
+  if(_mode == SingleLine) {
+    if(!pasteProtectionEnabled())
+      newText.replace('\n', ' ');
+    else if(newText.contains('\n')) {
+      QStringList lines = newText.split('\n', QString::SkipEmptyParts);
+      clear();
+
+      if(lines.count() >= 4) {
+        QString msg = tr("Do you really want to paste %n lines?", "", lines.count());
+        msg += "<p>";
+        for(int i = 0; i < 4; i++) {
+          msg += Qt::escape(lines[i].left(40));
+          if(lines[i].count() > 40)
+            msg += "...";
+          msg += "<br />";
+        }
+        msg += "...</p>";
+        QMessageBox question(QMessageBox::NoIcon, tr("Paste Protection"), msg, QMessageBox::Yes|QMessageBox::No);
+        question.setDefaultButton(QMessageBox::No);
+#ifdef Q_WS_MAC
+        question.setWindowFlags(question.windowFlags() | Qt::Sheet);
+#endif
+        if(question.exec() != QMessageBox::Yes)
+          return;
+      }
+
+      foreach(QString line, lines) {
+        clear();
+        insert(line);
+        on_returnPressed();
+      }
+    }
+  }
+
+  _singleLine = (newText.indexOf('\n') < 0);
 
   if(document()->size().height() != _lastDocumentHeight) {
     _lastDocumentHeight = document()->size().height();
     on_documentHeightChanged(_lastDocumentHeight);
   }
-  updateGeometry();
+  updateSizeHint();
+  ensureCursorVisible();
 }
 
 void MultiLineEdit::on_documentHeightChanged(qreal) {
@@ -302,20 +699,22 @@ void MultiLineEdit::on_documentHeightChanged(qreal) {
 
 void MultiLineEdit::reset() {
   // every time the MultiLineEdit is cleared we also reset history index
-  idx = history.count();
+  _idx = _history.count();
   clear();
   QTextBlockFormat format = textCursor().blockFormat();
   format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
   textCursor().setBlockFormat(format);
+  updateScrollBars();
 }
 
 void MultiLineEdit::showHistoryEntry() {
   // if the user changed the history, display the changed line
-  setPlainText(tempHistory.contains(idx) ? tempHistory[idx] : history[idx]);
+  setHtml(convertMircCodesToHtml(_tempHistory.contains(_idx) ? _tempHistory[_idx] : _history[_idx]));
   QTextCursor cursor = textCursor();
   QTextBlockFormat format = cursor.blockFormat();
   format.setLeftMargin(leftMargin); // we want a little space between the frame and the contents
   cursor.setBlockFormat(format);
   cursor.movePosition(QTextCursor::End);
   setTextCursor(cursor);
+  updateScrollBars();
 }