new file mode 100644
--- /dev/null
+++ b/gui/src/terminal/TerminalDisplay.cpp
@@ -0,0 +1,2976 @@
+/*
+    This file is part of Konsole, a terminal emulator for KDE.
+    
+    Copyright 2006-2008 by Robert Knight <robertknight@gmail.com>
+    Copyright 1997,1998 by Lars Doelle <lars.doelle@on-line.de>
+    
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301  USA.
+*/
+
+// Own
+#include "TerminalDisplay.h"
+
+// Qt
+#include <QtGui/QApplication>
+#include <QtGui/QBoxLayout>
+#include <QtGui/QClipboard>
+#include <QtGui/QKeyEvent>
+#include <QtCore/QEvent>
+#include <QtCore/QTime>
+#include <QtCore/QFile>
+#include <QtGui/QGridLayout>
+#include <QtGui/QLabel>
+#include <QtGui/QLayout>
+#include <QtGui/QPainter>
+#include <QtGui/QPixmap>
+#include <QtGui/QScrollBar>
+#include <QtGui/QStyle>
+#include <QtCore/QTimer>
+#include <QtGui/QToolTip>
+#include <QtCore/QTextStream>
+
+#include "Filter.h"
+#include "konsole_wcwidth.h"
+#include "ScreenWindow.h"
+#include "TerminalCharacterDecoder.h"
+
+#ifndef loc
+#define loc(X,Y) ((Y)*_columns+(X))
+#endif
+
+#define yMouseScroll 1
+
+#define REPCHAR   "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
+    "abcdefgjijklmnopqrstuvwxyz" \
+    "0123456789./+@"
+
+const ColorEntry base_color_table[TABLE_COLORS] =
+// The following are almost IBM standard color codes, with some slight
+// gamma correction for the dim colors to compensate for bright X screens.
+// It contains the 8 ansiterm/xterm colors in 2 intensities.
+{
+    // Fixme: could add faint colors here, also.
+    // normal
+    ColorEntry(QColor(0x00,0x00,0x00), 0), ColorEntry( QColor(0xB2,0xB2,0xB2), 1), // Dfore, Dback
+            ColorEntry(QColor(0x00,0x00,0x00), 0), ColorEntry( QColor(0xB2,0x18,0x18), 0), // Black, Red
+            ColorEntry(QColor(0x18,0xB2,0x18), 0), ColorEntry( QColor(0xB2,0x68,0x18), 0), // Green, Yellow
+            ColorEntry(QColor(0x18,0x18,0xB2), 0), ColorEntry( QColor(0xB2,0x18,0xB2), 0), // Blue, Magenta
+            ColorEntry(QColor(0x18,0xB2,0xB2), 0), ColorEntry( QColor(0xB2,0xB2,0xB2), 0), // Cyan, White
+            // intensiv
+            ColorEntry(QColor(0x00,0x00,0x00), 0), ColorEntry( QColor(0xFF,0xFF,0xFF), 1),
+            ColorEntry(QColor(0x68,0x68,0x68), 0), ColorEntry( QColor(0xFF,0x54,0x54), 0),
+            ColorEntry(QColor(0x54,0xFF,0x54), 0), ColorEntry( QColor(0xFF,0xFF,0x54), 0),
+            ColorEntry(QColor(0x54,0x54,0xFF), 0), ColorEntry( QColor(0xFF,0x54,0xFF), 0),
+            ColorEntry(QColor(0x54,0xFF,0xFF), 0), ColorEntry( QColor(0xFF,0xFF,0xFF), 0)
+};
+
+// scroll increment used when dragging selection at top/bottom of window.
+
+// static
+bool TerminalDisplay::_antialiasText = true;
+bool TerminalDisplay::HAVE_TRANSPARENCY = false;
+
+// we use this to force QPainter to display text in LTR mode
+// more information can be found in: http://unicode.org/reports/tr9/ 
+const QChar LTR_OVERRIDE_CHAR( 0x202D );
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                                Colors                                     */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+/* Note that we use ANSI color order (bgr), while IBMPC color order is (rgb)
+
+   Code        0       1       2       3       4       5       6       7
+   ----------- ------- ------- ------- ------- ------- ------- ------- -------
+   ANSI  (bgr) Black   Red     Green   Yellow  Blue    Magenta Cyan    White
+   IBMPC (rgb) Black   Blue    Green   Cyan    Red     Magenta Yellow  White
+*/
+
+ScreenWindow* TerminalDisplay::screenWindow() const
+{
+    return _screenWindow;
+}
+void TerminalDisplay::setScreenWindow(ScreenWindow* window)
+{
+    // disconnect existing screen window if any
+    if ( _screenWindow )
+    {
+        disconnect( _screenWindow , 0 , this , 0 );
+    }
+
+    _screenWindow = window;
+
+    if ( window )
+    {
+
+        // TODO: Determine if this is an issue.
+        //#warning "The order here is not specified - does it matter whether updateImage or updateLineProperties comes first?"
+        connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateLineProperties()) );
+        connect( _screenWindow , SIGNAL(outputChanged()) , this , SLOT(updateImage()) );
+        window->setWindowLines(_lines);
+    }
+}
+
+const ColorEntry* TerminalDisplay::colorTable() const
+{
+    return _colorTable;
+}
+void TerminalDisplay::setBackgroundColor(const QColor& color)
+{
+    _colorTable[DEFAULT_BACK_COLOR].color = color;
+    QPalette p = palette();
+    p.setColor( backgroundRole(), color );
+    setPalette( p );
+
+    // Avoid propagating the palette change to the scroll bar
+    _scrollBar->setPalette( QApplication::palette() );
+
+    update();
+}
+void TerminalDisplay::setForegroundColor(const QColor& color)
+{
+    _colorTable[DEFAULT_FORE_COLOR].color = color;
+
+    update();
+}
+void TerminalDisplay::setColorTable(const ColorEntry table[])
+{
+    for (int i = 0; i < TABLE_COLORS; i++)
+        _colorTable[i] = table[i];
+
+    setBackgroundColor(_colorTable[DEFAULT_BACK_COLOR].color);
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                                   Font                                    */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+/*
+   The VT100 has 32 special graphical characters. The usual vt100 extended
+   xterm fonts have these at 0x00..0x1f.
+
+   QT's iso mapping leaves 0x00..0x7f without any changes. But the graphicals
+   come in here as proper unicode characters.
+
+   We treat non-iso10646 fonts as VT100 extended and do the requiered mapping
+   from unicode to 0x00..0x1f. The remaining translation is then left to the
+   QCodec.
+*/
+
+static inline bool isLineChar(quint16 c) { return ((c & 0xFF80) == 0x2500);}
+static inline bool isLineCharString(const QString& string)
+{
+    return (string.length() > 0) && (isLineChar(string.at(0).unicode()));
+}
+
+
+// assert for i in [0..31] : vt100extended(vt100_graphics[i]) == i.
+
+unsigned short vt100_graphics[32] =
+{ // 0/8     1/9    2/10    3/11    4/12    5/13    6/14    7/15
+  0x0020, 0x25C6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0,
+  0x00b1, 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c,
+  0xF800, 0xF801, 0x2500, 0xF803, 0xF804, 0x251c, 0x2524, 0x2534,
+  0x252c, 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00b7
+};
+
+void TerminalDisplay::fontChange(const QFont&)
+{
+    QFontMetrics fm(font());
+    _fontHeight = fm.height() + _lineSpacing;
+
+    // waba TerminalDisplay 1.123:
+    // "Base character width on widest ASCII character. This prevents too wide
+    //  characters in the presence of double wide (e.g. Japanese) characters."
+    // Get the width from representative normal width characters
+    _fontWidth = qRound((double)fm.width(REPCHAR)/(double)strlen(REPCHAR));
+
+    _fixedFont = true;
+
+    int fw = fm.width(REPCHAR[0]);
+    for(unsigned int i=1; i< strlen(REPCHAR); i++)
+    {
+        if (fw != fm.width(REPCHAR[i]))
+        {
+            _fixedFont = false;
+            break;
+        }
+    }
+
+    if (_fontWidth < 1)
+        _fontWidth=1;
+
+    _fontAscent = fm.ascent();
+
+    emit changedFontMetricSignal( _fontHeight, _fontWidth );
+    propagateSize();
+    update();
+}
+
+void TerminalDisplay::setVTFont(const QFont& f)
+{
+    QFont font = f;
+
+    QFontMetrics metrics(font);
+
+    if ( !QFontInfo(font).fixedPitch() )
+    {
+        //kWarning() << "Using an unsupported variable-width font in the terminal.  This may produce display errors.";
+    }
+
+    if ( metrics.height() < height() && metrics.maxWidth() < width() )
+    {
+        // hint that text should be drawn without anti-aliasing.
+        // depending on the user's font configuration, this may not be respected
+        if (!_antialiasText)
+            font.setStyleStrategy( QFont::NoAntialias );
+
+        // experimental optimization.  Konsole assumes that the terminal is using a
+        // mono-spaced font, in which case kerning information should have an effect.
+        // Disabling kerning saves some computation when rendering text.
+        font.setKerning(false);
+
+        QWidget::setFont(font);
+        fontChange(font);
+    }
+}
+
+void TerminalDisplay::setFont(const QFont &)
+{
+    // ignore font change request if not coming from konsole itself
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                         Constructor / Destructor                          */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+TerminalDisplay::TerminalDisplay(QWidget *parent)
+    :QWidget(parent)
+    ,_screenWindow(0)
+    ,_allowBell(true)
+    ,_gridLayout(0)
+    ,_fontHeight(1)
+    ,_fontWidth(1)
+    ,_fontAscent(1)
+    ,_boldIntense(true)
+    ,_lines(1)
+    ,_columns(1)
+    ,_usedLines(1)
+    ,_usedColumns(1)
+    ,_contentHeight(1)
+    ,_contentWidth(1)
+    ,_image(0)
+    ,_randomSeed(0)
+    ,_resizing(false)
+    ,_terminalSizeHint(false)
+    ,_terminalSizeStartup(true)
+    ,_bidiEnabled(false)
+    ,_actSel(0)
+    ,_wordSelectionMode(false)
+    ,_lineSelectionMode(false)
+    ,_preserveLineBreaks(false)
+    ,_columnSelectionMode(false)
+    ,_scrollbarLocation(NoScrollBar)
+    ,_wordCharacters(":@-./_~")
+    ,_bellMode(SystemBeepBell)
+    ,_blinking(false)
+    ,_hasBlinker(false)
+    ,_cursorBlinking(false)
+    ,_hasBlinkingCursor(false)
+    ,_allowBlinkingText(true)
+    ,_ctrlDrag(true)
+    ,_tripleClickMode(SelectWholeLine)
+    ,_isFixedSize(false)
+    ,_possibleTripleClick(false)
+    ,_resizeWidget(0)
+    ,_resizeTimer(0)
+    ,_flowControlWarningEnabled(false)
+    ,_outputSuspendedLabel(0)
+    ,_lineSpacing(0)
+    ,_colorsInverted(false)
+    ,_blendColor(qRgba(0,0,0,0xff))
+    ,_filterChain(new TerminalImageFilterChain())
+    ,_cursorShape(BlockCursor)
+{
+    // terminal applications are not designed with Right-To-Left in mind,
+    // so the layout is forced to Left-To-Right
+    setLayoutDirection(Qt::LeftToRight);
+
+    // The offsets are not yet calculated.
+    // Do not calculate these too often to be more smoothly when resizing
+    // konsole in opaque mode.
+    _topMargin = DEFAULT_TOP_MARGIN;
+    _leftMargin = DEFAULT_LEFT_MARGIN;
+
+    // create scroll bar for scrolling output up and down
+    // set the scroll bar's slider to occupy the whole area of the scroll bar initially
+    _scrollBar = new QScrollBar(this);
+    setScroll(0,0);
+    _scrollBar->setCursor( Qt::ArrowCursor );
+    connect(_scrollBar, SIGNAL(valueChanged(int)), this,
+            SLOT(scrollBarPositionChanged(int)));
+
+    // setup timers for blinking cursor and text
+    _blinkTimer   = new QTimer(this);
+    connect(_blinkTimer, SIGNAL(timeout()), this, SLOT(blinkEvent()));
+    _blinkCursorTimer   = new QTimer(this);
+    connect(_blinkCursorTimer, SIGNAL(timeout()), this, SLOT(blinkCursorEvent()));
+
+    //KCursor::setAutoHideCursor( this, true );
+
+    setUsesMouse(true);
+    setColorTable(base_color_table);
+    setMouseTracking(true);
+
+    // Enable drag and drop
+    setAcceptDrops(true); // attempt
+    dragInfo.state = diNone;
+
+    setFocusPolicy( Qt::WheelFocus );
+
+    // enable input method support
+    setAttribute(Qt::WA_InputMethodEnabled, true);
+
+    // this is an important optimization, it tells Qt
+    // that TerminalDisplay will handle repainting its entire area.
+    setAttribute(Qt::WA_OpaquePaintEvent);
+
+    _gridLayout = new QGridLayout(this);
+    _gridLayout->setContentsMargins(0, 0, 0, 0);
+
+    setLayout( _gridLayout );
+
+    new AutoScrollHandler(this);
+}
+
+TerminalDisplay::~TerminalDisplay()
+{
+    disconnect(_blinkTimer);
+    disconnect(_blinkCursorTimer);
+    qApp->removeEventFilter( this );
+
+    delete[] _image;
+
+    delete _gridLayout;
+    delete _outputSuspendedLabel;
+    delete _filterChain;
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                             Display Operations                            */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+/**
+ A table for emulating the simple (single width) unicode drawing chars.
+ It represents the 250x - 257x glyphs. If it's zero, we can't use it.
+ if it's not, it's encoded as follows: imagine a 5x5 grid where the points are numbered
+ 0 to 24 left to top, top to bottom. Each point is represented by the corresponding bit.
+
+ Then, the pixels basically have the following interpretation:
+ _|||_
+ -...-
+ -...-
+ -...-
+ _|||_
+
+where _ = none
+      | = vertical line.
+      - = horizontal line.
+ */
+
+
+enum LineEncode
+{
+    TopL  = (1<<1),
+    TopC  = (1<<2),
+    TopR  = (1<<3),
+
+    LeftT = (1<<5),
+    Int11 = (1<<6),
+    Int12 = (1<<7),
+    Int13 = (1<<8),
+    RightT = (1<<9),
+
+    LeftC = (1<<10),
+    Int21 = (1<<11),
+    Int22 = (1<<12),
+    Int23 = (1<<13),
+    RightC = (1<<14),
+
+    LeftB = (1<<15),
+    Int31 = (1<<16),
+    Int32 = (1<<17),
+    Int33 = (1<<18),
+    RightB = (1<<19),
+
+    BotL  = (1<<21),
+    BotC  = (1<<22),
+    BotR  = (1<<23)
+};
+
+#include "LineFont.h"
+
+static void drawLineChar(QPainter& paint, int x, int y, int w, int h, uchar code)
+{
+    //Calculate cell midpoints, end points.
+    int cx = x + w/2;
+    int cy = y + h/2;
+    int ex = x + w - 1;
+    int ey = y + h - 1;
+
+    quint32 toDraw = LineChars[code];
+
+    //Top _lines:
+    if (toDraw & TopL)
+        paint.drawLine(cx-1, y, cx-1, cy-2);
+    if (toDraw & TopC)
+        paint.drawLine(cx, y, cx, cy-2);
+    if (toDraw & TopR)
+        paint.drawLine(cx+1, y, cx+1, cy-2);
+
+    //Bot _lines:
+    if (toDraw & BotL)
+        paint.drawLine(cx-1, cy+2, cx-1, ey);
+    if (toDraw & BotC)
+        paint.drawLine(cx, cy+2, cx, ey);
+    if (toDraw & BotR)
+        paint.drawLine(cx+1, cy+2, cx+1, ey);
+
+    //Left _lines:
+    if (toDraw & LeftT)
+        paint.drawLine(x, cy-1, cx-2, cy-1);
+    if (toDraw & LeftC)
+        paint.drawLine(x, cy, cx-2, cy);
+    if (toDraw & LeftB)
+        paint.drawLine(x, cy+1, cx-2, cy+1);
+
+    //Right _lines:
+    if (toDraw & RightT)
+        paint.drawLine(cx+2, cy-1, ex, cy-1);
+    if (toDraw & RightC)
+        paint.drawLine(cx+2, cy, ex, cy);
+    if (toDraw & RightB)
+        paint.drawLine(cx+2, cy+1, ex, cy+1);
+
+    //Intersection points.
+    if (toDraw & Int11)
+        paint.drawPoint(cx-1, cy-1);
+    if (toDraw & Int12)
+        paint.drawPoint(cx, cy-1);
+    if (toDraw & Int13)
+        paint.drawPoint(cx+1, cy-1);
+
+    if (toDraw & Int21)
+        paint.drawPoint(cx-1, cy);
+    if (toDraw & Int22)
+        paint.drawPoint(cx, cy);
+    if (toDraw & Int23)
+        paint.drawPoint(cx+1, cy);
+
+    if (toDraw & Int31)
+        paint.drawPoint(cx-1, cy+1);
+    if (toDraw & Int32)
+        paint.drawPoint(cx, cy+1);
+    if (toDraw & Int33)
+        paint.drawPoint(cx+1, cy+1);
+
+}
+
+void TerminalDisplay::drawLineCharString(    QPainter& painter, int x, int y, const QString& str, 
+                                         const Character* attributes)
+{
+    const QPen& currentPen = painter.pen();
+
+    if ( (attributes->rendition & RE_BOLD) && _boldIntense )
+    {
+        QPen boldPen(currentPen);
+        boldPen.setWidth(3);
+        painter.setPen( boldPen );
+    }
+
+    for (int i=0 ; i < str.length(); i++)
+    {
+        uchar code = str[i].cell();
+        if (LineChars[code])
+            drawLineChar(painter, x + (_fontWidth*i), y, _fontWidth, _fontHeight, code);
+    }
+
+    painter.setPen( currentPen );
+}
+
+void TerminalDisplay::setKeyboardCursorShape(KeyboardCursorShape shape)
+{
+    _cursorShape = shape;
+}
+TerminalDisplay::KeyboardCursorShape TerminalDisplay::keyboardCursorShape() const
+{
+    return _cursorShape;
+}
+void TerminalDisplay::setKeyboardCursorColor(bool useForegroundColor, const QColor& color)
+{
+    if (useForegroundColor)
+        _cursorColor = QColor(); // an invalid color means that
+    // the foreground color of the
+    // current character should
+    // be used
+
+    else
+        _cursorColor = color;
+}
+QColor TerminalDisplay::keyboardCursorColor() const
+{
+    return _cursorColor;
+}
+
+void TerminalDisplay::setOpacity(qreal opacity)
+{
+    QColor color(_blendColor);
+    color.setAlphaF(opacity);
+
+    // enable automatic background filling to prevent the display
+    // flickering if there is no transparency
+    /*if ( color.alpha() == 255 ) 
+    {
+        setAutoFillBackground(true);
+    }
+    else
+    {
+        setAutoFillBackground(false);
+    }*/
+
+    _blendColor = color.rgba();
+}
+
+void TerminalDisplay::drawBackground(QPainter& painter, const QRect& rect, const QColor& backgroundColor, bool useOpacitySetting )
+{
+    // the area of the widget showing the contents of the terminal display is drawn
+    // using the background color from the color scheme set with setColorTable()
+    //
+    // the area of the widget behind the scroll-bar is drawn using the background
+    // brush from the scroll-bar's palette, to give the effect of the scroll-bar
+    // being outside of the terminal display and visual consistency with other KDE
+    // applications.
+    //
+    QRect scrollBarArea = _scrollBar->isVisible() ?
+                rect.intersected(_scrollBar->geometry()) :
+                QRect();
+    QRegion contentsRegion = QRegion(rect).subtracted(scrollBarArea);
+    QRect contentsRect = contentsRegion.boundingRect();
+
+    if ( HAVE_TRANSPARENCY && qAlpha(_blendColor) < 0xff && useOpacitySetting )
+    {
+        QColor color(backgroundColor);
+        color.setAlpha(qAlpha(_blendColor));
+
+        painter.save();
+        painter.setCompositionMode(QPainter::CompositionMode_Source);
+        painter.fillRect(contentsRect, color);
+        painter.restore();
+    }
+    else
+        painter.fillRect(contentsRect, backgroundColor);
+
+    painter.fillRect(scrollBarArea,_scrollBar->palette().background());
+}
+
+void TerminalDisplay::drawCursor(QPainter& painter, 
+                                 const QRect& rect,
+                                 const QColor& foregroundColor,
+                                 const QColor& /*backgroundColor*/,
+                                 bool& invertCharacterColor)
+{
+    QRect cursorRect = rect;
+    cursorRect.setHeight(_fontHeight - _lineSpacing - 1);
+    
+    if (!_cursorBlinking)
+    {
+        if ( _cursorColor.isValid() )
+            painter.setPen(_cursorColor);
+        else
+            painter.setPen(foregroundColor);
+
+        if ( _cursorShape == BlockCursor )
+        {
+            // draw the cursor outline, adjusting the area so that
+            // it is draw entirely inside 'rect'
+            int penWidth = qMax(1,painter.pen().width());
+
+            painter.drawRect(cursorRect.adjusted(penWidth/2,
+                                                 penWidth/2,
+                                                 - penWidth/2 - penWidth%2,
+                                                 - penWidth/2 - penWidth%2));
+            if ( hasFocus() )
+            {
+                painter.fillRect(cursorRect, _cursorColor.isValid() ? _cursorColor : foregroundColor);
+
+                if ( !_cursorColor.isValid() )
+                {
+                    // invert the colour used to draw the text to ensure that the character at
+                    // the cursor position is readable
+                    invertCharacterColor = true;
+                }
+            }
+        }
+        else if ( _cursorShape == UnderlineCursor )
+            painter.drawLine(cursorRect.left(),
+                             cursorRect.bottom(),
+                             cursorRect.right(),
+                             cursorRect.bottom());
+        else if ( _cursorShape == IBeamCursor )
+            painter.drawLine(cursorRect.left(),
+                             cursorRect.top(),
+                             cursorRect.left(),
+                             cursorRect.bottom());
+
+    }
+}
+
+void TerminalDisplay::drawCharacters(QPainter& painter,
+                                     const QRect& rect,
+                                     const QString& text,
+                                     const Character* style,
+                                     bool invertCharacterColor)
+{
+    // don't draw text which is currently blinking
+    if ( _blinking && (style->rendition & RE_BLINK) )
+        return;
+
+    // setup bold and underline
+    bool useBold;
+    ColorEntry::FontWeight weight = style->fontWeight(_colorTable);    
+    if (weight == ColorEntry::UseCurrentFormat)
+        useBold = ((style->rendition & RE_BOLD) && _boldIntense) || font().bold();
+    else
+        useBold = (weight == ColorEntry::Bold) ? true : false;
+    bool useUnderline = style->rendition & RE_UNDERLINE || font().underline();
+
+    QFont font = painter.font();
+    if (    font.bold() != useBold 
+            || font.underline() != useUnderline )
+    {
+        font.setBold(useBold);
+        font.setUnderline(useUnderline);
+        painter.setFont(font);
+    }
+
+    // setup pen
+    const CharacterColor& textColor = ( invertCharacterColor ? style->backgroundColor : style->foregroundColor );
+    const QColor color = textColor.color(_colorTable);
+    QPen pen = painter.pen();
+    if ( pen.color() != color )
+    {
+        pen.setColor(color);
+        painter.setPen(color);
+    }
+
+    // draw text
+    if ( isLineCharString(text) )
+        drawLineCharString(painter,rect.x(),rect.y(),text,style);
+    else
+    {
+        // the drawText(rect,flags,string) overload is used here with null flags
+        // instead of drawText(rect,string) because the (rect,string) overload causes 
+        // the application's default layout direction to be used instead of 
+        // the widget-specific layout direction, which should always be
+        // Qt::LeftToRight for this widget
+        // This was discussed in: http://lists.kde.org/?t=120552223600002&r=1&w=2
+        if (_bidiEnabled)
+            painter.drawText(rect,0,text);
+        else
+            painter.drawText(rect,0,LTR_OVERRIDE_CHAR+text);
+    }
+}
+
+void TerminalDisplay::drawTextFragment(QPainter& painter , 
+                                       const QRect& rect,
+                                       const QString& text, 
+                                       const Character* style)
+{
+    painter.save();
+
+    // setup painter 
+    const QColor foregroundColor = style->foregroundColor.color(_colorTable);
+    const QColor backgroundColor = style->backgroundColor.color(_colorTable);
+    
+    // draw background if different from the display's background color
+    if ( backgroundColor != palette().background().color() )
+        drawBackground(painter,rect,backgroundColor,
+                       false /* do not use transparency */);
+
+    // draw cursor shape if the current character is the cursor
+    // this may alter the foreground and background colors
+    bool invertCharacterColor = false;
+    if ( style->rendition & RE_CURSOR )
+        drawCursor(painter,rect,foregroundColor,backgroundColor,invertCharacterColor);
+
+    // draw text
+    drawCharacters(painter,rect,text,style,invertCharacterColor);
+
+    painter.restore();
+}
+
+void TerminalDisplay::setRandomSeed(uint randomSeed) { _randomSeed = randomSeed; }
+uint TerminalDisplay::randomSeed() const { return _randomSeed; }
+
+#if 0
+/*!
+    Set XIM Position
+*/
+void TerminalDisplay::setCursorPos(const int curx, const int cury)
+{
+    QPoint tL  = contentsRect().topLeft();
+    int    tLx = tL.x();
+    int    tLy = tL.y();
+
+    int xpos, ypos;
+    ypos = _topMargin + tLy + _fontHeight*(cury-1) + _fontAscent;
+    xpos = _leftMargin + tLx + _fontWidth*curx;
+    _cursorLine = cury;
+    _cursorCol = curx;
+}
+#endif
+
+// scrolls the image by 'lines', down if lines > 0 or up otherwise.
+//
+// the terminal emulation keeps track of the scrolling of the character 
+// image as it receives input, and when the view is updated, it calls scrollImage() 
+// with the final scroll amount.  this improves performance because scrolling the 
+// display is much cheaper than re-rendering all the text for the 
+// part of the image which has moved up or down.  
+// Instead only new lines have to be drawn
+void TerminalDisplay::scrollImage(int lines , const QRect& screenWindowRegion)
+{
+    // if the flow control warning is enabled this will interfere with the 
+    // scrolling optimizations and cause artifacts.  the simple solution here
+    // is to just disable the optimization whilst it is visible
+    if ( _outputSuspendedLabel && _outputSuspendedLabel->isVisible() )
+        return;
+
+    // constrain the region to the display
+    // the bottom of the region is capped to the number of lines in the display's
+    // internal image - 2, so that the height of 'region' is strictly less
+    // than the height of the internal image.
+    QRect region = screenWindowRegion;
+    region.setBottom( qMin(region.bottom(),this->_lines-2) ); 
+
+    // return if there is nothing to do
+    if (    lines == 0 
+            || _image == 0
+            || !region.isValid()
+            || (region.top() + abs(lines)) >= region.bottom()
+            || this->_lines <= region.height() ) return;
+
+    // hide terminal size label to prevent it being scrolled
+    if (_resizeWidget && _resizeWidget->isVisible())
+        _resizeWidget->hide();
+
+    // Note:  With Qt 4.4 the left edge of the scrolled area must be at 0
+    // to get the correct (newly exposed) part of the widget repainted.
+    //
+    // The right edge must be before the left edge of the scroll bar to 
+    // avoid triggering a repaint of the entire widget, the distance is 
+    // given by SCROLLBAR_CONTENT_GAP
+    //
+    // Set the QT_FLUSH_PAINT environment variable to '1' before starting the
+    // application to monitor repainting.
+    //
+    int scrollBarWidth = _scrollBar->isHidden() ? 0 : _scrollBar->width();
+    const int SCROLLBAR_CONTENT_GAP = 1;
+    QRect scrollRect;
+    if ( _scrollbarLocation == ScrollBarLeft )
+    {
+        scrollRect.setLeft(scrollBarWidth+SCROLLBAR_CONTENT_GAP);
+        scrollRect.setRight(width());
+    }
+    else
+    {
+        scrollRect.setLeft(0);
+        scrollRect.setRight(width() - scrollBarWidth - SCROLLBAR_CONTENT_GAP);
+    }
+    void* firstCharPos = &_image[ region.top() * this->_columns ];
+    void* lastCharPos = &_image[ (region.top() + abs(lines)) * this->_columns ];
+
+    int top = _topMargin + (region.top() * _fontHeight);
+    int linesToMove = region.height() - abs(lines);
+    int bytesToMove = linesToMove * 
+            this->_columns *
+            sizeof(Character);
+
+    Q_ASSERT( linesToMove > 0 );
+    Q_ASSERT( bytesToMove > 0 );
+
+    //scroll internal image
+    if ( lines > 0 )
+    {
+        // check that the memory areas that we are going to move are valid
+        Q_ASSERT( (char*)lastCharPos + bytesToMove < 
+                 (char*)(_image + (this->_lines * this->_columns)) );
+        
+        Q_ASSERT( (lines*this->_columns) < _imageSize ); 
+
+        //scroll internal image down
+        memmove( firstCharPos , lastCharPos , bytesToMove ); 
+
+        //set region of display to scroll
+        scrollRect.setTop(top);
+    }
+    else
+    {
+        // check that the memory areas that we are going to move are valid
+        Q_ASSERT( (char*)firstCharPos + bytesToMove < 
+                 (char*)(_image + (this->_lines * this->_columns)) );
+
+        //scroll internal image up
+        memmove( lastCharPos , firstCharPos , bytesToMove ); 
+
+        //set region of the display to scroll
+        scrollRect.setTop(top + abs(lines) * _fontHeight); 
+    }
+    scrollRect.setHeight(linesToMove * _fontHeight );
+
+    Q_ASSERT(scrollRect.isValid() && !scrollRect.isEmpty());
+
+    //scroll the display vertically to match internal _image
+    scroll( 0 , _fontHeight * (-lines) , scrollRect );
+}
+
+QRegion TerminalDisplay::hotSpotRegion() const 
+{
+    QRegion region;
+    foreach( Filter::HotSpot* hotSpot , _filterChain->hotSpots() )
+    {
+        QRect r;
+        if (hotSpot->startLine()==hotSpot->endLine()) {
+            r.setLeft(hotSpot->startColumn());
+            r.setTop(hotSpot->startLine());
+            r.setRight(hotSpot->endColumn());
+            r.setBottom(hotSpot->endLine());
+            region |= imageToWidget(r);;
+        } else {
+            r.setLeft(hotSpot->startColumn());
+            r.setTop(hotSpot->startLine());
+            r.setRight(_columns);
+            r.setBottom(hotSpot->startLine());
+            region |= imageToWidget(r);;
+            for ( int line = hotSpot->startLine()+1 ; line < hotSpot->endLine() ; line++ ) {
+                r.setLeft(0);
+                r.setTop(line);
+                r.setRight(_columns);
+                r.setBottom(line);
+                region |= imageToWidget(r);;
+            }
+            r.setLeft(0);
+            r.setTop(hotSpot->endLine());
+            r.setRight(hotSpot->endColumn());
+            r.setBottom(hotSpot->endLine());
+            region |= imageToWidget(r);;
+        }
+    }
+    return region;
+}
+
+void TerminalDisplay::processFilters() 
+{
+    if (!_screenWindow)
+        return;
+
+    QRegion preUpdateHotSpots = hotSpotRegion();
+
+    // use _screenWindow->getImage() here rather than _image because
+    // other classes may call processFilters() when this display's
+    // ScreenWindow emits a scrolled() signal - which will happen before
+    // updateImage() is called on the display and therefore _image is 
+    // out of date at this point
+    _filterChain->setImage( _screenWindow->getImage(),
+                           _screenWindow->windowLines(),
+                           _screenWindow->windowColumns(),
+                           _screenWindow->getLineProperties() );
+    _filterChain->process();
+
+    QRegion postUpdateHotSpots = hotSpotRegion();
+
+    update( preUpdateHotSpots | postUpdateHotSpots );
+}
+
+void TerminalDisplay::updateImage() 
+{
+    if ( !_screenWindow )
+        return;
+
+    // optimization - scroll the existing image where possible and
+    // avoid expensive text drawing for parts of the image that
+    // can simply be moved up or down
+    scrollImage( _screenWindow->scrollCount() ,
+                _screenWindow->scrollRegion() );
+    _screenWindow->resetScrollCount();
+
+    if (!_image) {
+        // Create _image.
+        // The emitted changedContentSizeSignal also leads to getImage being recreated, so do this first.
+        updateImageSize();
+    }
+
+    Character* const newimg = _screenWindow->getImage();
+    int lines = _screenWindow->windowLines();
+    int columns = _screenWindow->windowColumns();
+
+    setScroll( _screenWindow->currentLine() , _screenWindow->lineCount() );
+
+    Q_ASSERT( this->_usedLines <= this->_lines );
+    Q_ASSERT( this->_usedColumns <= this->_columns );
+
+    int y,x,len;
+
+    QPoint tL  = contentsRect().topLeft();
+    int    tLx = tL.x();
+    int    tLy = tL.y();
+    _hasBlinker = false;
+
+    CharacterColor cf;       // undefined
+    CharacterColor _clipboard;       // undefined
+    int cr  = -1;   // undefined
+
+    const int linesToUpdate = qMin(this->_lines, qMax(0,lines  ));
+    const int columnsToUpdate = qMin(this->_columns,qMax(0,columns));
+
+    QChar *disstrU = new QChar[columnsToUpdate];
+    char *dirtyMask = new char[columnsToUpdate+2];
+    QRegion dirtyRegion;
+
+    // debugging variable, this records the number of lines that are found to
+    // be 'dirty' ( ie. have changed from the old _image to the new _image ) and
+    // which therefore need to be repainted
+    int dirtyLineCount = 0;
+
+    for (y = 0; y < linesToUpdate; ++y)
+    {
+        const Character*       currentLine = &_image[y*this->_columns];
+        const Character* const newLine = &newimg[y*columns];
+
+        bool updateLine = false;
+
+        // The dirty mask indicates which characters need repainting. We also
+        // mark surrounding neighbours dirty, in case the character exceeds
+        // its cell boundaries
+        memset(dirtyMask, 0, columnsToUpdate+2);
+
+        for( x = 0 ; x < columnsToUpdate ; ++x)
+        {
+            if ( newLine[x] != currentLine[x] )
+            {
+                dirtyMask[x] = true;
+            }
+        }
+
+        if (!_resizing) // not while _resizing, we're expecting a paintEvent
+            for (x = 0; x < columnsToUpdate; ++x)
+            {
+                _hasBlinker |= (newLine[x].rendition & RE_BLINK);
+
+                // Start drawing if this character or the next one differs.
+                // We also take the next one into account to handle the situation
+                // where characters exceed their cell width.
+                if (dirtyMask[x])
+                {
+                    quint16 c = newLine[x+0].character;
+                    if ( !c )
+                        continue;
+                    int p = 0;
+                    disstrU[p++] = c; //fontMap(c);
+                    bool lineDraw = isLineChar(c);
+                    bool doubleWidth = (x+1 == columnsToUpdate) ? false : (newLine[x+1].character == 0);
+                    cr = newLine[x].rendition;
+                    _clipboard = newLine[x].backgroundColor;
+                    if (newLine[x].foregroundColor != cf) cf = newLine[x].foregroundColor;
+                    int lln = columnsToUpdate - x;
+                    for (len = 1; len < lln; ++len)
+                    {
+                        const Character& ch = newLine[x+len];
+
+                        if (!ch.character)
+                            continue; // Skip trailing part of multi-col chars.
+
+                        bool nextIsDoubleWidth = (x+len+1 == columnsToUpdate) ? false : (newLine[x+len+1].character == 0);
+
+                        if (  ch.foregroundColor != cf ||
+                                ch.backgroundColor != _clipboard ||
+                                ch.rendition != cr ||
+                                !dirtyMask[x+len] ||
+                                isLineChar(c) != lineDraw ||
+                                nextIsDoubleWidth != doubleWidth )
+                            break;
+
+                        disstrU[p++] = c; //fontMap(c);
+                    }
+
+                    QString unistr(disstrU, p);
+
+                    bool saveFixedFont = _fixedFont;
+                    if (lineDraw)
+                        _fixedFont = false;
+                    if (doubleWidth)
+                        _fixedFont = false;
+
+                    updateLine = true;
+
+                    _fixedFont = saveFixedFont;
+                    x += len - 1;
+                }
+
+            }
+
+        //both the top and bottom halves of double height _lines must always be redrawn
+        //although both top and bottom halves contain the same characters, only
+        //the top one is actually
+        //drawn.
+        if (_lineProperties.count() > y)
+            updateLine |= (_lineProperties[y] & LINE_DOUBLEHEIGHT);
+
+        // if the characters on the line are different in the old and the new _image
+        // then this line must be repainted.
+        if (updateLine)
+        {
+            dirtyLineCount++;
+
+            // add the area occupied by this line to the region which needs to be
+            // repainted
+            QRect dirtyRect = QRect( _leftMargin+tLx ,
+                                    _topMargin+tLy+_fontHeight*y ,
+                                    _fontWidth * columnsToUpdate ,
+                                    _fontHeight );
+
+            dirtyRegion |= dirtyRect;
+        }
+
+        // replace the line of characters in the old _image with the
+        // current line of the new _image
+        memcpy((void*)currentLine,(const void*)newLine,columnsToUpdate*sizeof(Character));
+    }
+
+    // if the new _image is smaller than the previous _image, then ensure that the area
+    // outside the new _image is cleared
+    if ( linesToUpdate < _usedLines )
+    {
+        dirtyRegion |= QRect(   _leftMargin+tLx ,
+                             _topMargin+tLy+_fontHeight*linesToUpdate ,
+                             _fontWidth * this->_columns ,
+                             _fontHeight * (_usedLines-linesToUpdate) );
+    }
+    _usedLines = linesToUpdate;
+
+    if ( columnsToUpdate < _usedColumns )
+    {
+        dirtyRegion |= QRect(   _leftMargin+tLx+columnsToUpdate*_fontWidth ,
+                             _topMargin+tLy ,
+                             _fontWidth * (_usedColumns-columnsToUpdate) ,
+                             _fontHeight * this->_lines );
+    }
+    _usedColumns = columnsToUpdate;
+
+    dirtyRegion |= _inputMethodData.previousPreeditRect;
+
+    // update the parts of the display which have changed
+    update(dirtyRegion);
+
+    if ( _hasBlinker && !_blinkTimer->isActive()) _blinkTimer->start( TEXT_BLINK_DELAY );
+    if (!_hasBlinker && _blinkTimer->isActive()) { _blinkTimer->stop(); _blinking = false; }
+    delete[] dirtyMask;
+    delete[] disstrU;
+
+}
+
+void TerminalDisplay::showResizeNotification()
+{
+    if (_terminalSizeHint && isVisible())
+    {
+        if (_terminalSizeStartup) {
+            _terminalSizeStartup=false;
+            return;
+        }
+        if (!_resizeWidget)
+        {
+            _resizeWidget = new QLabel(QString("Size: XXX x XXX"), this);
+            _resizeWidget->setMinimumWidth(_resizeWidget->fontMetrics().width(QString("Size: XXX x XXX")));
+            _resizeWidget->setMinimumHeight(_resizeWidget->sizeHint().height());
+            _resizeWidget->setAlignment(Qt::AlignCenter);
+
+            _resizeWidget->setStyleSheet("background-color:palette(window);border-style:solid;border-width:1px;border-color:palette(dark)");
+
+            _resizeTimer = new QTimer(this);
+            _resizeTimer->setSingleShot(true);
+            connect(_resizeTimer, SIGNAL(timeout()), _resizeWidget, SLOT(hide()));
+        }
+        QString sizeStr = QString("Size: %1 x %2").arg(_columns).arg(_lines);
+        _resizeWidget->setText(sizeStr);
+        _resizeWidget->move((width()-_resizeWidget->width())/2,
+                            (height()-_resizeWidget->height())/2+20);
+        _resizeWidget->show();
+        _resizeTimer->start(1000);
+    }
+}
+
+void TerminalDisplay::setBlinkingCursor(bool blink)
+{
+    _hasBlinkingCursor=blink;
+
+    if (blink && !_blinkCursorTimer->isActive())
+        _blinkCursorTimer->start(QApplication::cursorFlashTime() / 2);
+
+    if (!blink && _blinkCursorTimer->isActive())
+    {
+        _blinkCursorTimer->stop();
+        if (_cursorBlinking)
+            blinkCursorEvent();
+        else
+            _cursorBlinking = false;
+    }
+}
+
+void TerminalDisplay::setBlinkingTextEnabled(bool blink)
+{
+    _allowBlinkingText = blink;
+
+    if (blink && !_blinkTimer->isActive()) 
+        _blinkTimer->start(TEXT_BLINK_DELAY);
+
+    if (!blink && _blinkTimer->isActive()) 
+    {
+        _blinkTimer->stop();
+        _blinking = false;
+    }
+}
+
+void TerminalDisplay::focusOutEvent(QFocusEvent*)
+{
+    // trigger a repaint of the cursor so that it is both visible (in case
+    // it was hidden during blinking)
+    // and drawn in a focused out state
+    _cursorBlinking = false;
+    updateCursor();
+
+    _blinkCursorTimer->stop();
+    if (_blinking)
+        blinkEvent();
+
+    _blinkTimer->stop();
+}
+void TerminalDisplay::focusInEvent(QFocusEvent*)
+{
+    if (_hasBlinkingCursor)
+    {
+        _blinkCursorTimer->start();
+    }
+    updateCursor();
+
+    if (_hasBlinker)
+        _blinkTimer->start();
+}
+
+void TerminalDisplay::paintEvent( QPaintEvent* pe )
+{
+    QPainter paint(this);
+
+    foreach (const QRect &rect, (pe->region() & contentsRect()).rects())
+    {
+        drawBackground(paint,rect,palette().background().color(),
+                       true /* use opacity setting */);
+        drawContents(paint, rect);
+    }
+    drawInputMethodPreeditString(paint,preeditRect());
+    paintFilters(paint);
+}
+
+QPoint TerminalDisplay::cursorPosition() const
+{
+    if (_screenWindow)
+        return _screenWindow->cursorPosition();
+    else
+        return QPoint(0,0);
+}
+
+QRect TerminalDisplay::preeditRect() const
+{
+    const int preeditLength = string_width(_inputMethodData.preeditString);
+
+    if ( preeditLength == 0 )
+        return QRect();
+
+    return QRect(_leftMargin + _fontWidth*cursorPosition().x(),
+                 _topMargin + _fontHeight*cursorPosition().y(),
+                 _fontWidth*preeditLength,
+                 _fontHeight);
+}   
+
+void TerminalDisplay::drawInputMethodPreeditString(QPainter& painter , const QRect& rect)
+{
+    if ( _inputMethodData.preeditString.isEmpty() )
+        return;
+
+    const QPoint cursorPos = cursorPosition(); 
+
+    bool invertColors = false;
+    const QColor background = _colorTable[DEFAULT_BACK_COLOR].color;
+    const QColor foreground = _colorTable[DEFAULT_FORE_COLOR].color;
+    const Character* style = &_image[loc(cursorPos.x(),cursorPos.y())];
+
+    drawBackground(painter,rect,background,true);
+    drawCursor(painter,rect,foreground,background,invertColors);
+    drawCharacters(painter,rect,_inputMethodData.preeditString,style,invertColors);
+
+    _inputMethodData.previousPreeditRect = rect; 
+}
+
+FilterChain* TerminalDisplay::filterChain() const
+{
+    return _filterChain;
+}
+
+void TerminalDisplay::paintFilters(QPainter& painter)
+{
+    // get color of character under mouse and use it to draw
+    // lines for filters
+    QPoint cursorPos = mapFromGlobal(QCursor::pos());
+    int cursorLine;
+    int cursorColumn;
+    int scrollBarWidth = (_scrollbarLocation == ScrollBarLeft) ? _scrollBar->width() : 0;
+
+    getCharacterPosition( cursorPos , cursorLine , cursorColumn );
+    Character cursorCharacter = _image[loc(cursorColumn,cursorLine)];
+
+    painter.setPen( QPen(cursorCharacter.foregroundColor.color(colorTable())) );
+
+    // iterate over hotspots identified by the display's currently active filters 
+    // and draw appropriate visuals to indicate the presence of the hotspot
+
+    QList<Filter::HotSpot*> spots = _filterChain->hotSpots();
+    QListIterator<Filter::HotSpot*> iter(spots);
+    while (iter.hasNext())
+    {
+        Filter::HotSpot* spot = iter.next();
+
+        QRegion region;
+        if ( spot->type() == Filter::HotSpot::Link ) {
+            QRect r;
+            if (spot->startLine()==spot->endLine()) {
+                r.setCoords( spot->startColumn()*_fontWidth + 1 + scrollBarWidth, 
+                            spot->startLine()*_fontHeight + 1,
+                            (spot->endColumn()-1)*_fontWidth - 1 + scrollBarWidth,
+                            (spot->endLine()+1)*_fontHeight - 1 );
+                region |= r;
+            } else {
+                r.setCoords( spot->startColumn()*_fontWidth + 1 + scrollBarWidth, 
+                            spot->startLine()*_fontHeight + 1,
+                            (_columns-1)*_fontWidth - 1 + scrollBarWidth,
+                            (spot->startLine()+1)*_fontHeight - 1 );
+                region |= r;
+                for ( int line = spot->startLine()+1 ; line < spot->endLine() ; line++ ) {
+                    r.setCoords( 0*_fontWidth + 1 + scrollBarWidth, 
+                                line*_fontHeight + 1,
+                                (_columns-1)*_fontWidth - 1 + scrollBarWidth,
+                                (line+1)*_fontHeight - 1 );
+                    region |= r;
+                }
+                r.setCoords( 0*_fontWidth + 1 + scrollBarWidth,
+                            spot->endLine()*_fontHeight + 1,
+                            (spot->endColumn()-1)*_fontWidth - 1 + scrollBarWidth,
+                            (spot->endLine()+1)*_fontHeight - 1 );
+                region |= r;
+            }
+        }
+
+        for ( int line = spot->startLine() ; line <= spot->endLine() ; line++ )
+        {
+            int startColumn = 0;
+            int endColumn = _columns-1; // TODO use number of _columns which are actually 
+            // occupied on this line rather than the width of the
+            // display in _columns
+
+            // ignore whitespace at the end of the lines
+            while ( QChar(_image[loc(endColumn,line)].character).isSpace() && endColumn > 0 )
+                endColumn--;
+
+            // increment here because the column which we want to set 'endColumn' to
+            // is the first whitespace character at the end of the line
+            endColumn++;
+
+            if ( line == spot->startLine() )
+                startColumn = spot->startColumn();
+            if ( line == spot->endLine() )
+                endColumn = spot->endColumn();
+
+            // subtract one pixel from
+            // the right and bottom so that
+            // we do not overdraw adjacent
+            // hotspots
+            //
+            // subtracting one pixel from all sides also prevents an edge case where
+            // moving the mouse outside a link could still leave it underlined 
+            // because the check below for the position of the cursor
+            // finds it on the border of the target area
+            QRect r;
+            r.setCoords( startColumn*_fontWidth + 1 + scrollBarWidth,
+                        line*_fontHeight + 1,
+                        endColumn*_fontWidth - 1 + scrollBarWidth,
+                        (line+1)*_fontHeight - 1 );
+            // Underline link hotspots 
+            if ( spot->type() == Filter::HotSpot::Link )
+            {
+                QFontMetrics metrics(font());
+
+                // find the baseline (which is the invisible line that the characters in the font sit on,
+                // with some having tails dangling below)
+                int baseline = r.bottom() - metrics.descent();
+                // find the position of the underline below that
+                int underlinePos = baseline + metrics.underlinePos();
+                if ( region.contains( mapFromGlobal(QCursor::pos()) ) ){
+                    painter.drawLine( r.left() , underlinePos , 
+                                     r.right() , underlinePos );
+                }
+            }
+            // Marker hotspots simply have a transparent rectanglular shape
+            // drawn on top of them
+            else if ( spot->type() == Filter::HotSpot::Marker )
+            {
+                //TODO - Do not use a hardcoded colour for this
+                painter.fillRect(r,QBrush(QColor(255,0,0,120)));
+            }
+        }
+    }
+}
+void TerminalDisplay::drawContents(QPainter &paint, const QRect &rect)
+{
+    QPoint tL  = contentsRect().topLeft();
+    int    tLx = tL.x();
+    int    tLy = tL.y();
+
+    int lux = qMin(_usedColumns-1, qMax(0,(rect.left()   - tLx - _leftMargin ) / _fontWidth));
+    int luy = qMin(_usedLines-1,  qMax(0,(rect.top()    - tLy - _topMargin  ) / _fontHeight));
+    int rlx = qMin(_usedColumns-1, qMax(0,(rect.right()  - tLx - _leftMargin ) / _fontWidth));
+    int rly = qMin(_usedLines-1,  qMax(0,(rect.bottom() - tLy - _topMargin  ) / _fontHeight));
+
+    const int bufferSize = _usedColumns;
+    QString unistr;
+    unistr.reserve(bufferSize);
+    for (int y = luy; y <= rly; y++)
+    {
+        quint16 c = _image[loc(lux,y)].character;
+        int x = lux;
+        if(!c && x)
+            x--; // Search for start of multi-column character
+        for (; x <= rlx; x++)
+        {
+            int len = 1;
+            int p = 0;
+
+            // reset our buffer to the maximal size
+            unistr.resize(bufferSize);
+            QChar *disstrU = unistr.data();
+
+            // is this a single character or a sequence of characters ?
+            if ( _image[loc(x,y)].rendition & RE_EXTENDED_CHAR )
+            {
+                // sequence of characters
+                ushort extendedCharLength = 0;
+                ushort* chars = ExtendedCharTable::instance
+                        .lookupExtendedChar(_image[loc(x,y)].charSequence,extendedCharLength);
+                for ( int index = 0 ; index < extendedCharLength ; index++ )
+                {
+                    Q_ASSERT( p < bufferSize );
+                    disstrU[p++] = chars[index];
+                }
+            }
+            else
+            {
+                // single character
+                c = _image[loc(x,y)].character;
+                if (c)
+                {
+                    Q_ASSERT( p < bufferSize );
+                    disstrU[p++] = c; //fontMap(c);
+                }
+            }
+
+            bool lineDraw = isLineChar(c);
+            bool doubleWidth = (_image[ qMin(loc(x,y)+1,_imageSize) ].character == 0);
+            CharacterColor currentForeground = _image[loc(x,y)].foregroundColor;
+            CharacterColor currentBackground = _image[loc(x,y)].backgroundColor;
+            quint8 currentRendition = _image[loc(x,y)].rendition;
+
+            while (x+len <= rlx &&
+                   _image[loc(x+len,y)].foregroundColor == currentForeground &&
+                   _image[loc(x+len,y)].backgroundColor == currentBackground &&
+                   _image[loc(x+len,y)].rendition == currentRendition &&
+                   (_image[ qMin(loc(x+len,y)+1,_imageSize) ].character == 0) == doubleWidth &&
+                   isLineChar( c = _image[loc(x+len,y)].character) == lineDraw) // Assignment!
+            {
+                if (c)
+                    disstrU[p++] = c; //fontMap(c);
+                if (doubleWidth) // assert((_image[loc(x+len,y)+1].character == 0)), see above if condition
+                    len++; // Skip trailing part of multi-column character
+                len++;
+            }
+            if ((x+len < _usedColumns) && (!_image[loc(x+len,y)].character))
+                len++; // Adjust for trailing part of multi-column character
+
+            bool save__fixedFont = _fixedFont;
+            if (lineDraw)
+                _fixedFont = false;
+            if (doubleWidth)
+                _fixedFont = false;
+            unistr.resize(p);
+
+            // Create a text scaling matrix for double width and double height lines.
+            QMatrix textScale;
+
+            if (y < _lineProperties.size())
+            {
+                if (_lineProperties[y] & LINE_DOUBLEWIDTH)
+                    textScale.scale(2,1);
+
+                if (_lineProperties[y] & LINE_DOUBLEHEIGHT)
+                    textScale.scale(1,2);
+            }
+
+            //Apply text scaling matrix.
+            paint.setWorldMatrix(textScale, true);
+
+            //calculate the area in which the text will be drawn
+            QRect textArea = QRect( _leftMargin+tLx+_fontWidth*x , _topMargin+tLy+_fontHeight*y , _fontWidth*len , _fontHeight);
+
+            //move the calculated area to take account of scaling applied to the painter.
+            //the position of the area from the origin (0,0) is scaled
+            //by the opposite of whatever
+            //transformation has been applied to the painter.  this ensures that
+            //painting does actually start from textArea.topLeft()
+            //(instead of textArea.topLeft() * painter-scale)
+            textArea.moveTopLeft( textScale.inverted().map(textArea.topLeft()) );
+
+            //paint text fragment
+            drawTextFragment(    paint,
+                             textArea,
+                             unistr,
+                             &_image[loc(x,y)] ); //,
+            //0,
+            //!_isPrinting );
+
+            _fixedFont = save__fixedFont;
+
+            //reset back to single-width, single-height _lines
+            paint.setWorldMatrix(textScale.inverted(), true);
+
+            if (y < _lineProperties.size()-1)
+            {
+                //double-height _lines are represented by two adjacent _lines
+                //containing the same characters
+                //both _lines will have the LINE_DOUBLEHEIGHT attribute.
+                //If the current line has the LINE_DOUBLEHEIGHT attribute,
+                //we can therefore skip the next line
+                if (_lineProperties[y] & LINE_DOUBLEHEIGHT)
+                    y++;
+            }
+
+            x += len - 1;
+        }
+    }
+}
+
+void TerminalDisplay::blinkEvent()
+{
+    if (!_allowBlinkingText) return;
+
+    _blinking = !_blinking;
+
+    //TODO:  Optimize to only repaint the areas of the widget
+    // where there is blinking text
+    // rather than repainting the whole widget.
+    update();
+}
+
+QRect TerminalDisplay::imageToWidget(const QRect& imageArea) const
+{
+    QRect result;
+    result.setLeft( _leftMargin + _fontWidth * imageArea.left() );
+    result.setTop( _topMargin + _fontHeight * imageArea.top() );
+    result.setWidth( _fontWidth * imageArea.width() );
+    result.setHeight( _fontHeight * imageArea.height() );
+
+    return result;
+}
+
+void TerminalDisplay::updateCursor()
+{
+    QRect cursorRect = imageToWidget( QRect(cursorPosition(),QSize(1,1)) );
+    update(cursorRect);
+}
+
+void TerminalDisplay::blinkCursorEvent()
+{
+    _cursorBlinking = !_cursorBlinking;
+    updateCursor();
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                                  Resizing                                 */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+void TerminalDisplay::resizeEvent(QResizeEvent*)
+{
+    updateImageSize();
+}
+
+void TerminalDisplay::propagateSize()
+{
+    if (_isFixedSize)
+    {
+        setSize(_columns, _lines);
+        QWidget::setFixedSize(sizeHint());
+        parentWidget()->adjustSize();
+        parentWidget()->setFixedSize(parentWidget()->sizeHint());
+        return;
+    }
+    if (_image)
+        updateImageSize();
+}
+
+void TerminalDisplay::updateImageSize()
+{
+    Character* oldimg = _image;
+    int oldlin = _lines;
+    int oldcol = _columns;
+
+    makeImage();
+
+    // copy the old image to reduce flicker
+    int lines = qMin(oldlin,_lines);
+    int columns = qMin(oldcol,_columns);
+
+    if (oldimg)
+    {
+        for (int line = 0; line < lines; line++)
+        {
+            memcpy((void*)&_image[_columns*line],
+                   (void*)&oldimg[oldcol*line],columns*sizeof(Character));
+        }
+        delete[] oldimg;
+    }
+
+    if (_screenWindow)
+        _screenWindow->setWindowLines(_lines);
+
+    _resizing = (oldlin!=_lines) || (oldcol!=_columns);
+
+    if ( _resizing )
+    {
+        showResizeNotification();
+        emit changedContentSizeSignal(_contentHeight, _contentWidth); // expose resizeEvent
+    }
+
+    _resizing = false;
+}
+
+//showEvent and hideEvent are reimplemented here so that it appears to other classes that the 
+//display has been resized when the display is hidden or shown.
+//
+//TODO: Perhaps it would be better to have separate signals for show and hide instead of using
+//the same signal as the one for a content size change 
+void TerminalDisplay::showEvent(QShowEvent*)
+{
+    emit changedContentSizeSignal(_contentHeight,_contentWidth);
+}
+void TerminalDisplay::hideEvent(QHideEvent*)
+{
+    emit changedContentSizeSignal(_contentHeight,_contentWidth);
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                                Scrollbar                                  */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+void TerminalDisplay::scrollBarPositionChanged(int)
+{
+    if ( !_screenWindow )
+        return;
+
+    _screenWindow->scrollTo( _scrollBar->value() );
+
+    // if the thumb has been moved to the bottom of the _scrollBar then set
+    // the display to automatically track new output,
+    // that is, scroll down automatically
+    // to how new _lines as they are added
+    const bool atEndOfOutput = (_scrollBar->value() == _scrollBar->maximum());
+    _screenWindow->setTrackOutput( atEndOfOutput );
+
+    updateImage();
+}
+
+void TerminalDisplay::setScroll(int cursor, int slines)
+{
+    // update _scrollBar if the range or value has changed,
+    // otherwise return
+    //
+    // setting the range or value of a _scrollBar will always trigger
+    // a repaint, so it should be avoided if it is not necessary
+    if ( _scrollBar->minimum() == 0                 &&
+            _scrollBar->maximum() == (slines - _lines) &&
+            _scrollBar->value()   == cursor )
+    {
+        return;
+    }
+
+    disconnect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int)));
+    _scrollBar->setRange(0,slines - _lines);
+    _scrollBar->setSingleStep(1);
+    _scrollBar->setPageStep(_lines);
+    _scrollBar->setValue(cursor);
+    connect(_scrollBar, SIGNAL(valueChanged(int)), this, SLOT(scrollBarPositionChanged(int)));
+}
+
+void TerminalDisplay::setScrollBarPosition(ScrollBarPosition position)
+{
+    if (_scrollbarLocation == position)
+        return;
+
+    if ( position == NoScrollBar )
+        _scrollBar->hide();
+    else
+        _scrollBar->show();
+
+    _topMargin = _leftMargin = 1;
+    _scrollbarLocation = position;
+
+    propagateSize();
+    update();
+}
+
+void TerminalDisplay::mousePressEvent(QMouseEvent* ev)
+{
+    if ( _possibleTripleClick && (ev->button()==Qt::LeftButton) ) {
+        mouseTripleClickEvent(ev);
+        return;
+    }
+
+    if ( !contentsRect().contains(ev->pos()) ) return;
+
+    if ( !_screenWindow ) return;
+
+    int charLine;
+    int charColumn;
+    getCharacterPosition(ev->pos(),charLine,charColumn);
+    QPoint pos = QPoint(charColumn,charLine);
+
+    if ( ev->button() == Qt::LeftButton)
+    {
+        _lineSelectionMode = false;
+        _wordSelectionMode = false;
+
+        emit isBusySelecting(true); // Keep it steady...
+        // Drag only when the Control key is hold
+        bool selected = false;
+
+        // The receiver of the testIsSelected() signal will adjust
+        // 'selected' accordingly.
+        //emit testIsSelected(pos.x(), pos.y(), selected);
+
+        selected =  _screenWindow->isSelected(pos.x(),pos.y());
+
+        if ((!_ctrlDrag || ev->modifiers() & Qt::ControlModifier) && selected ) {
+            // The user clicked inside selected text
+            dragInfo.state = diPending;
+            dragInfo.start = ev->pos();
+        }
+        else {
+            // No reason to ever start a drag event
+            dragInfo.state = diNone;
+
+            _preserveLineBreaks = !( ( ev->modifiers() & Qt::ControlModifier ) && !(ev->modifiers() & Qt::AltModifier) );
+            _columnSelectionMode = (ev->modifiers() & Qt::AltModifier) && (ev->modifiers() & Qt::ControlModifier);
+
+            if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier))
+            {
+                _screenWindow->clearSelection();
+
+                //emit clearSelectionSignal();
+                pos.ry() += _scrollBar->value();
+                _iPntSel = _pntSel = pos;
+                _actSel = 1; // left mouse button pressed but nothing selected yet.
+
+            }
+            else
+            {
+                emit mouseSignal( 0, charColumn + 1, charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0);
+            }
+        }
+    }
+    else if ( ev->button() == Qt::MidButton )
+    {
+        if ( _mouseMarks || (!_mouseMarks && (ev->modifiers() & Qt::ShiftModifier)) )
+            emitSelection(true,ev->modifiers() & Qt::ControlModifier);
+        else
+            emit mouseSignal( 1, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0);
+    }
+    else if ( ev->button() == Qt::RightButton )
+    {
+        if (_mouseMarks || (ev->modifiers() & Qt::ShiftModifier))
+            emit configureRequest(ev->pos());
+        else
+            emit mouseSignal( 2, charColumn +1, charLine +1 +_scrollBar->value() -_scrollBar->maximum() , 0);
+    }
+}
+
+QList<QAction*> TerminalDisplay::filterActions(const QPoint& position)
+{
+    int charLine, charColumn;
+    getCharacterPosition(position,charLine,charColumn);
+
+    Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn);
+
+    return spot ? spot->actions() : QList<QAction*>();
+}
+
+void TerminalDisplay::mouseMoveEvent(QMouseEvent* ev)
+{
+    int charLine = 0;
+    int charColumn = 0;
+    int scrollBarWidth = (_scrollbarLocation == ScrollBarLeft) ? _scrollBar->width() : 0;
+
+    getCharacterPosition(ev->pos(),charLine,charColumn);
+
+    // handle filters
+    // change link hot-spot appearance on mouse-over
+    Filter::HotSpot* spot = _filterChain->hotSpotAt(charLine,charColumn);
+    if ( spot && spot->type() == Filter::HotSpot::Link)
+    {
+        QRegion previousHotspotArea = _mouseOverHotspotArea;
+        _mouseOverHotspotArea = QRegion();
+        QRect r;
+        if (spot->startLine()==spot->endLine()) {
+            r.setCoords( spot->startColumn()*_fontWidth + scrollBarWidth,
+                        spot->startLine()*_fontHeight,
+                        spot->endColumn()*_fontWidth + scrollBarWidth,
+                        (spot->endLine()+1)*_fontHeight - 1 );
+            _mouseOverHotspotArea |= r;
+        } else {
+            r.setCoords( spot->startColumn()*_fontWidth + scrollBarWidth,
+                        spot->startLine()*_fontHeight,
+                        _columns*_fontWidth - 1 + scrollBarWidth,
+                        (spot->startLine()+1)*_fontHeight );
+            _mouseOverHotspotArea |= r;
+            for ( int line = spot->startLine()+1 ; line < spot->endLine() ; line++ ) {
+                r.setCoords( 0*_fontWidth + scrollBarWidth,
+                            line*_fontHeight,
+                            _columns*_fontWidth + scrollBarWidth,
+                            (line+1)*_fontHeight );
+                _mouseOverHotspotArea |= r;
+            }
+            r.setCoords( 0*_fontWidth + scrollBarWidth,
+                        spot->endLine()*_fontHeight,
+                        spot->endColumn()*_fontWidth + scrollBarWidth,
+                        (spot->endLine()+1)*_fontHeight );
+            _mouseOverHotspotArea |= r;
+        }
+        // display tooltips when mousing over links
+        // TODO: Extend this to work with filter types other than links
+        const QString& tooltip = spot->tooltip();
+        if ( !tooltip.isEmpty() )
+        {
+            QToolTip::showText( mapToGlobal(ev->pos()) , tooltip , this , _mouseOverHotspotArea.boundingRect() );
+        }
+
+        update( _mouseOverHotspotArea | previousHotspotArea );
+    }
+    else if ( !_mouseOverHotspotArea.isEmpty() )
+    {
+        update( _mouseOverHotspotArea );
+        // set hotspot area to an invalid rectangle
+        _mouseOverHotspotArea = QRegion();
+    }
+
+    // for auto-hiding the cursor, we need mouseTracking
+    if (ev->buttons() == Qt::NoButton ) return;
+
+    // if the terminal is interested in mouse movements
+    // then emit a mouse movement signal, unless the shift
+    // key is being held down, which overrides this.
+    if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier))
+    {
+        int button = 3;
+        if (ev->buttons() & Qt::LeftButton)
+            button = 0;
+        if (ev->buttons() & Qt::MidButton)
+            button = 1;
+        if (ev->buttons() & Qt::RightButton)
+            button = 2;
+
+        
+        emit mouseSignal( button, 
+                         charColumn + 1,
+                         charLine + 1 +_scrollBar->value() -_scrollBar->maximum(),
+                         1 );
+
+        return;
+    }
+
+    if (dragInfo.state == diPending)
+    {
+        // we had a mouse down, but haven't confirmed a drag yet
+        // if the mouse has moved sufficiently, we will confirm
+
+        int distance = 10; //KGlobalSettings::dndEventDelay();
+        if ( ev->x() > dragInfo.start.x() + distance || ev->x() < dragInfo.start.x() - distance ||
+                ev->y() > dragInfo.start.y() + distance || ev->y() < dragInfo.start.y() - distance)
+        {
+            // we've left the drag square, we can start a real drag operation now
+            emit isBusySelecting(false); // Ok.. we can breath again.
+
+            _screenWindow->clearSelection();
+            doDrag();
+        }
+        return;
+    }
+    else if (dragInfo.state == diDragging)
+    {
+        // this isn't technically needed because mouseMoveEvent is suppressed during
+        // Qt drag operations, replaced by dragMoveEvent
+        return;
+    }
+
+    if (_actSel == 0) return;
+
+    // don't extend selection while pasting
+    if (ev->buttons() & Qt::MidButton) return;
+
+    extendSelection( ev->pos() );
+}
+
+void TerminalDisplay::extendSelection( const QPoint& position )
+{
+    QPoint pos = position;
+
+    if ( !_screenWindow )
+        return;
+
+    //if ( !contentsRect().contains(ev->pos()) ) return;
+    QPoint tL  = contentsRect().topLeft();
+    int    tLx = tL.x();
+    int    tLy = tL.y();
+    int    scroll = _scrollBar->value();
+
+    // we're in the process of moving the mouse with the left button pressed
+    // the mouse cursor will kept caught within the bounds of the text in
+    // this widget.
+
+    int linesBeyondWidget = 0;
+
+    QRect textBounds(tLx + _leftMargin,
+                     tLy + _topMargin,
+                     _usedColumns*_fontWidth-1,
+                     _usedLines*_fontHeight-1);
+
+    // Adjust position within text area bounds.
+    QPoint oldpos = pos;
+
+    pos.setX( qBound(textBounds.left(),pos.x(),textBounds.right()) );
+    pos.setY( qBound(textBounds.top(),pos.y(),textBounds.bottom()) );
+
+    if ( oldpos.y() > textBounds.bottom() )
+    {
+        linesBeyondWidget = (oldpos.y()-textBounds.bottom()) / _fontHeight;
+        _scrollBar->setValue(_scrollBar->value()+linesBeyondWidget+1); // scrollforward
+    }
+    if ( oldpos.y() < textBounds.top() )
+    {
+        linesBeyondWidget = (textBounds.top()-oldpos.y()) / _fontHeight;
+        _scrollBar->setValue(_scrollBar->value()-linesBeyondWidget-1); // history
+    }
+
+    int charColumn = 0;
+    int charLine = 0;
+    getCharacterPosition(pos,charLine,charColumn);
+
+    QPoint here = QPoint(charColumn,charLine); //QPoint((pos.x()-tLx-_leftMargin+(_fontWidth/2))/_fontWidth,(pos.y()-tLy-_topMargin)/_fontHeight);
+    QPoint ohere;
+    QPoint _iPntSelCorr = _iPntSel;
+    _iPntSelCorr.ry() -= _scrollBar->value();
+    QPoint _pntSelCorr = _pntSel;
+    _pntSelCorr.ry() -= _scrollBar->value();
+    bool swapping = false;
+
+    if ( _wordSelectionMode )
+    {
+        // Extend to word boundaries
+        int i;
+        QChar selClass;
+
+        bool left_not_right = ( here.y() < _iPntSelCorr.y() ||
+                               ( here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x() ) );
+        bool old_left_not_right = ( _pntSelCorr.y() < _iPntSelCorr.y() ||
+                                   ( _pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x() ) );
+        swapping = left_not_right != old_left_not_right;
+
+        // Find left (left_not_right ? from here : from start)
+        QPoint left = left_not_right ? here : _iPntSelCorr;
+        i = loc(left.x(),left.y());
+        if (i>=0 && i<=_imageSize) {
+            selClass = charClass(_image[i].character);
+            while ( ((left.x()>0) || (left.y()>0 && (_lineProperties[left.y()-1] & LINE_WRAPPED) ))
+                   && charClass(_image[i-1].character) == selClass )
+            { i--; if (left.x()>0) left.rx()--; else {left.rx()=_usedColumns-1; left.ry()--;} }
+        }
+
+        // Find left (left_not_right ? from start : from here)
+        QPoint right = left_not_right ? _iPntSelCorr : here;
+        i = loc(right.x(),right.y());
+        if (i>=0 && i<=_imageSize) {
+            selClass = charClass(_image[i].character);
+            while( ((right.x()<_usedColumns-1) || (right.y()<_usedLines-1 && (_lineProperties[right.y()] & LINE_WRAPPED) ))
+                  && charClass(_image[i+1].character) == selClass )
+            { i++; if (right.x()<_usedColumns-1) right.rx()++; else {right.rx()=0; right.ry()++; } }
+        }
+
+        // Pick which is start (ohere) and which is extension (here)
+        if ( left_not_right )
+        {
+            here = left; ohere = right;
+        }
+        else
+        {
+            here = right; ohere = left;
+        }
+        ohere.rx()++;
+    }
+
+    if ( _lineSelectionMode )
+    {
+        // Extend to complete line
+        bool above_not_below = ( here.y() < _iPntSelCorr.y() );
+
+        QPoint above = above_not_below ? here : _iPntSelCorr;
+        QPoint below = above_not_below ? _iPntSelCorr : here;
+
+        while (above.y()>0 && (_lineProperties[above.y()-1] & LINE_WRAPPED) )
+            above.ry()--;
+        while (below.y()<_usedLines-1 && (_lineProperties[below.y()] & LINE_WRAPPED) )
+            below.ry()++;
+
+        above.setX(0);
+        below.setX(_usedColumns-1);
+
+        // Pick which is start (ohere) and which is extension (here)
+        if ( above_not_below )
+        {
+            here = above; ohere = below;
+        }
+        else
+        {
+            here = below; ohere = above;
+        }
+
+        QPoint newSelBegin = QPoint( ohere.x(), ohere.y() );
+        swapping = !(_tripleSelBegin==newSelBegin);
+        _tripleSelBegin = newSelBegin;
+
+        ohere.rx()++;
+    }
+
+    int offset = 0;
+    if ( !_wordSelectionMode && !_lineSelectionMode )
+    {
+        int i;
+        QChar selClass;
+
+        bool left_not_right = ( here.y() < _iPntSelCorr.y() ||
+                               ( here.y() == _iPntSelCorr.y() && here.x() < _iPntSelCorr.x() ) );
+        bool old_left_not_right = ( _pntSelCorr.y() < _iPntSelCorr.y() ||
+                                   ( _pntSelCorr.y() == _iPntSelCorr.y() && _pntSelCorr.x() < _iPntSelCorr.x() ) );
+        swapping = left_not_right != old_left_not_right;
+
+        // Find left (left_not_right ? from here : from start)
+        QPoint left = left_not_right ? here : _iPntSelCorr;
+
+        // Find left (left_not_right ? from start : from here)
+        QPoint right = left_not_right ? _iPntSelCorr : here;
+        if ( right.x() > 0 && !_columnSelectionMode )
+        {
+            i = loc(right.x(),right.y());
+            if (i>=0 && i<=_imageSize) {
+                selClass = charClass(_image[i-1].character);
+                /* if (selClass == ' ')
+        {
+          while ( right.x() < _usedColumns-1 && charClass(_image[i+1].character) == selClass && (right.y()<_usedLines-1) && 
+                          !(_lineProperties[right.y()] & LINE_WRAPPED))
+          { i++; right.rx()++; }
+          if (right.x() < _usedColumns-1)
+            right = left_not_right ? _iPntSelCorr : here;
+          else
+            right.rx()++;  // will be balanced later because of offset=-1;
+        }*/
+            }
+        }
+
+        // Pick which is start (ohere) and which is extension (here)
+        if ( left_not_right )
+        {
+            here = left; ohere = right; offset = 0;
+        }
+        else
+        {
+            here = right; ohere = left; offset = -1;
+        }
+    }
+
+    if ((here == _pntSelCorr) && (scroll == _scrollBar->value())) return; // not moved
+
+    if (here == ohere) return; // It's not left, it's not right.
+
+    if ( _actSel < 2 || swapping )
+    {
+        if ( _columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode )
+        {
+            _screenWindow->setSelectionStart( ohere.x() , ohere.y() , true );
+        }
+        else
+        {
+            _screenWindow->setSelectionStart( ohere.x()-1-offset , ohere.y() , false );
+        }
+
+    }
+
+    _actSel = 2; // within selection
+    _pntSel = here;
+    _pntSel.ry() += _scrollBar->value();
+
+    if ( _columnSelectionMode && !_lineSelectionMode && !_wordSelectionMode )
+    {
+        _screenWindow->setSelectionEnd( here.x() , here.y() );
+    }
+    else
+    {
+        _screenWindow->setSelectionEnd( here.x()+offset , here.y() );
+    }
+
+}
+
+void TerminalDisplay::mouseReleaseEvent(QMouseEvent* ev)
+{
+    if ( !_screenWindow )
+        return;
+
+    int charLine;
+    int charColumn;
+    getCharacterPosition(ev->pos(),charLine,charColumn);
+
+    if ( ev->button() == Qt::LeftButton)
+    {
+        emit isBusySelecting(false);
+        if(dragInfo.state == diPending)
+        {
+            // We had a drag event pending but never confirmed.  Kill selection
+            _screenWindow->clearSelection();
+            //emit clearSelectionSignal();
+        }
+        else
+        {
+            if ( _actSel > 1 )
+            {
+                setSelection(  _screenWindow->selectedText(_preserveLineBreaks)  );
+            }
+
+            _actSel = 0;
+
+            //FIXME: emits a release event even if the mouse is
+            //       outside the range. The procedure used in `mouseMoveEvent'
+            //       applies here, too.
+
+            if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier))
+                emit mouseSignal( 3, // release
+                                 charColumn + 1,
+                                 charLine + 1 +_scrollBar->value() -_scrollBar->maximum() , 0);
+        }
+        dragInfo.state = diNone;
+    }
+
+
+    if ( !_mouseMarks &&
+            ((ev->button() == Qt::RightButton && !(ev->modifiers() & Qt::ShiftModifier))
+             || ev->button() == Qt::MidButton) )
+    {
+        emit mouseSignal( 3,
+                         charColumn + 1,
+                         charLine + 1 +_scrollBar->value() -_scrollBar->maximum() ,
+                         0);
+    }
+}
+
+void TerminalDisplay::getCharacterPosition(const QPoint& widgetPoint,int& line,int& column) const
+{
+    column = (widgetPoint.x() + _fontWidth/2 -contentsRect().left()-_leftMargin) / _fontWidth;
+    line = (widgetPoint.y()-contentsRect().top()-_topMargin) / _fontHeight;
+
+    if ( line < 0 )
+        line = 0;
+    if ( column < 0 )
+        column = 0;
+
+    if ( line >= _usedLines )
+        line = _usedLines-1;
+
+    // the column value returned can be equal to _usedColumns, which
+    // is the position just after the last character displayed in a line.
+    //
+    // this is required so that the user can select characters in the right-most
+    // column (or left-most for right-to-left input)
+    if ( column > _usedColumns )
+        column = _usedColumns;
+}
+
+void TerminalDisplay::updateLineProperties()
+{
+    if ( !_screenWindow ) 
+        return;
+
+    _lineProperties = _screenWindow->getLineProperties();    
+}
+
+void TerminalDisplay::mouseDoubleClickEvent(QMouseEvent* ev)
+{
+    if ( ev->button() != Qt::LeftButton) return;
+    if ( !_screenWindow ) return;
+
+    int charLine = 0;
+    int charColumn = 0;
+
+    getCharacterPosition(ev->pos(),charLine,charColumn);
+
+    QPoint pos(charColumn,charLine);
+
+    // pass on double click as two clicks.
+    if (!_mouseMarks && !(ev->modifiers() & Qt::ShiftModifier))
+    {
+        // Send just _ONE_ click event, since the first click of the double click
+        // was already sent by the click handler
+        emit mouseSignal( 0,
+                         pos.x()+1,
+                         pos.y()+1 +_scrollBar->value() -_scrollBar->maximum(),
+                         0 ); // left button
+        return;
+    }
+
+    _screenWindow->clearSelection();
+    QPoint bgnSel = pos;
+    QPoint endSel = pos;
+    int i = loc(bgnSel.x(),bgnSel.y());
+    _iPntSel = bgnSel;
+    _iPntSel.ry() += _scrollBar->value();
+
+    _wordSelectionMode = true;
+
+    // find word boundaries...
+    QChar selClass = charClass(_image[i].character);
+    {
+        // find the start of the word
+        int x = bgnSel.x();
+        while ( ((x>0) || (bgnSel.y()>0 && (_lineProperties[bgnSel.y()-1] & LINE_WRAPPED) ))
+               && charClass(_image[i-1].character) == selClass )
+        {
+            i--;
+            if (x>0)
+                x--;
+            else
+            {
+                x=_usedColumns-1;
+                bgnSel.ry()--;
+            }
+        }
+
+        bgnSel.setX(x);
+        _screenWindow->setSelectionStart( bgnSel.x() , bgnSel.y() , false );
+
+        // find the end of the word
+        i = loc( endSel.x(), endSel.y() );
+        x = endSel.x();
+        while( ((x<_usedColumns-1) || (endSel.y()<_usedLines-1 && (_lineProperties[endSel.y()] & LINE_WRAPPED) ))
+              && charClass(_image[i+1].character) == selClass )
+        {
+            i++;
+            if (x<_usedColumns-1)
+                x++;
+            else
+            {
+                x=0;
+                endSel.ry()++;
+            }
+        }
+
+        endSel.setX(x);
+
+        // In word selection mode don't select @ (64) if at end of word.
+        if ( ( QChar( _image[i].character ) == '@' ) && ( ( endSel.x() - bgnSel.x() ) > 0 ) )
+            endSel.setX( x - 1 );
+
+
+        _actSel = 2; // within selection
+
+        _screenWindow->setSelectionEnd( endSel.x() , endSel.y() );
+
+        setSelection( _screenWindow->selectedText(_preserveLineBreaks) );
+    }
+
+    _possibleTripleClick=true;
+
+    QTimer::singleShot(QApplication::doubleClickInterval(),this,
+                       SLOT(tripleClickTimeout()));
+}
+
+void TerminalDisplay::wheelEvent( QWheelEvent* ev )
+{
+    if (ev->orientation() != Qt::Vertical)
+        return;
+
+    // if the terminal program is not interested mouse events
+    // then send the event to the scrollbar if the slider has room to move
+    // or otherwise send simulated up / down key presses to the terminal program
+    // for the benefit of programs such as 'less'
+    if ( _mouseMarks )
+    {
+        bool canScroll = _scrollBar->maximum() > 0;
+        if (canScroll)
+            _scrollBar->event(ev);
+        else
+        {
+            // assume that each Up / Down key event will cause the terminal application
+            // to scroll by one line.
+            //
+            // to get a reasonable scrolling speed, scroll by one line for every 5 degrees
+            // of mouse wheel rotation.  Mouse wheels typically move in steps of 15 degrees,
+            // giving a scroll of 3 lines
+            int key = ev->delta() > 0 ? Qt::Key_Up : Qt::Key_Down;
+
+            // QWheelEvent::delta() gives rotation in eighths of a degree
+            int wheelDegrees = ev->delta() / 8;
+            int linesToScroll = abs(wheelDegrees) / 5;
+
+            QKeyEvent keyScrollEvent(QEvent::KeyPress,key,Qt::NoModifier);
+
+            for (int i=0;i<linesToScroll;i++)
+                emit keyPressedSignal(&keyScrollEvent);
+        }
+    }
+    else
+    {
+        // terminal program wants notification of mouse activity
+
+        int charLine;
+        int charColumn;
+        getCharacterPosition( ev->pos() , charLine , charColumn );
+
+        emit mouseSignal( ev->delta() > 0 ? 4 : 5,
+                         charColumn + 1,
+                         charLine + 1 +_scrollBar->value() -_scrollBar->maximum() ,
+                         0);
+    }
+}
+
+void TerminalDisplay::tripleClickTimeout()
+{
+    _possibleTripleClick=false;
+}
+
+void TerminalDisplay::mouseTripleClickEvent(QMouseEvent* ev)
+{
+    if ( !_screenWindow ) return;
+
+    int charLine;
+    int charColumn;
+    getCharacterPosition(ev->pos(),charLine,charColumn);
+    _iPntSel = QPoint(charColumn,charLine);
+
+    _screenWindow->clearSelection();
+
+    _lineSelectionMode = true;
+    _wordSelectionMode = false;
+
+    _actSel = 2; // within selection
+    emit isBusySelecting(true); // Keep it steady...
+
+    while (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) )
+        _iPntSel.ry()--;
+
+    if (_tripleClickMode == SelectForwardsFromCursor) {
+        // find word boundary start
+        int i = loc(_iPntSel.x(),_iPntSel.y());
+        QChar selClass = charClass(_image[i].character);
+        int x = _iPntSel.x();
+
+        while ( ((x>0) ||
+                 (_iPntSel.y()>0 && (_lineProperties[_iPntSel.y()-1] & LINE_WRAPPED) )
+                 )
+               && charClass(_image[i-1].character) == selClass )
+        {
+            i--;
+            if (x>0)
+                x--;
+            else
+            {
+                x=_columns-1;
+                _iPntSel.ry()--;
+            }
+        }
+
+        _screenWindow->setSelectionStart( x , _iPntSel.y() , false );
+        _tripleSelBegin = QPoint( x, _iPntSel.y() );
+    }
+    else if (_tripleClickMode == SelectWholeLine) {
+        _screenWindow->setSelectionStart( 0 , _iPntSel.y() , false );
+        _tripleSelBegin = QPoint( 0, _iPntSel.y() );
+    }
+
+    while (_iPntSel.y()<_lines-1 && (_lineProperties[_iPntSel.y()] & LINE_WRAPPED) )
+        _iPntSel.ry()++;
+
+    _screenWindow->setSelectionEnd( _columns - 1 , _iPntSel.y() );
+
+    setSelection(_screenWindow->selectedText(_preserveLineBreaks));
+
+    _iPntSel.ry() += _scrollBar->value();
+}
+
+
+bool TerminalDisplay::focusNextPrevChild( bool next )
+{
+    if (next)
+        return false; // This disables changing the active part in konqueror
+    // when pressing Tab
+    return QWidget::focusNextPrevChild( next );
+}
+
+
+QChar TerminalDisplay::charClass(QChar qch) const
+{
+    if ( qch.isSpace() ) return ' ';
+
+    if ( qch.isLetterOrNumber() || _wordCharacters.contains(qch, Qt::CaseInsensitive ) )
+        return 'a';
+
+    return qch;
+}
+
+void TerminalDisplay::setWordCharacters(const QString& wc)
+{
+    _wordCharacters = wc;
+}
+
+void TerminalDisplay::setUsesMouse(bool on)
+{
+    _mouseMarks = on;
+    setCursor( _mouseMarks ? Qt::IBeamCursor : Qt::ArrowCursor );
+}
+bool TerminalDisplay::usesMouse() const
+{
+    return _mouseMarks;
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                               Clipboard                                   */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+#undef KeyPress
+
+void TerminalDisplay::emitSelection(bool useXselection,bool appendReturn)
+{
+    if ( !_screenWindow )
+        return;
+
+    // Paste Clipboard by simulating keypress events
+    QString text = QApplication::clipboard()->text(useXselection ? QClipboard::Selection :
+                                                                   QClipboard::Clipboard);
+    if(appendReturn)
+        text.append("\r");
+    if ( ! text.isEmpty() )
+    {
+        text.replace('\n', '\r');
+        QKeyEvent e(QEvent::KeyPress, 0, Qt::NoModifier, text);
+        emit keyPressedSignal(&e); // expose as a big fat keypress event
+
+        _screenWindow->clearSelection();
+    }
+}
+
+void TerminalDisplay::setSelection(const QString& t)
+{
+    QApplication::clipboard()->setText(t, QClipboard::Selection);
+}
+
+void TerminalDisplay::copyClipboard()
+{
+    if ( !_screenWindow )
+        return;
+
+    QString text = _screenWindow->selectedText(_preserveLineBreaks);
+    if (!text.isEmpty())
+        QApplication::clipboard()->setText(text);
+}
+
+void TerminalDisplay::pasteClipboard()
+{
+    emitSelection(false,false);
+}
+
+void TerminalDisplay::pasteSelection()
+{
+    emitSelection(true,false);
+}
+
+/* ------------------------------------------------------------------------- */
+/*                                                                           */
+/*                                Keyboard                                   */
+/*                                                                           */
+/* ------------------------------------------------------------------------- */
+
+void TerminalDisplay::setFlowControlWarningEnabled( bool enable )
+{
+    _flowControlWarningEnabled = enable;
+    
+    // if the dialog is currently visible and the flow control warning has 
+    // been disabled then hide the dialog
+    if (!enable)
+        outputSuspended(false);
+}
+
+void TerminalDisplay::keyPressEvent( QKeyEvent* event )
+{
+    bool emitKeyPressSignal = true;
+
+    if(event->modifiers() == Qt::ControlModifier)
+    {
+        switch(event->key()) {
+        case Qt::Key_C:
+            copyClipboard();
+            break;
+        case Qt::Key_V:
+            pasteClipboard();
+            break;
+        };
+    } else if ( event->modifiers() == Qt::ShiftModifier ) {
+        bool update = true;
+
+        if ( event->key() == Qt::Key_PageUp )
+        {
+            _screenWindow->scrollBy( ScreenWindow::ScrollPages , -1 );
+        }
+        else if ( event->key() == Qt::Key_PageDown )
+        {
+            _screenWindow->scrollBy( ScreenWindow::ScrollPages , 1 );
+        }
+        else if ( event->key() == Qt::Key_Up )
+        {
+            _screenWindow->scrollBy( ScreenWindow::ScrollLines , -1 );
+        }
+        else if ( event->key() == Qt::Key_Down )
+        {
+            _screenWindow->scrollBy( ScreenWindow::ScrollLines , 1 );
+        }
+        else
+            update = false;
+
+        if ( update )
+        {
+            _screenWindow->setTrackOutput( _screenWindow->atEndOfOutput() );
+            
+            updateLineProperties();
+            updateImage();
+
+            // do not send key press to terminal
+            emitKeyPressSignal = false;
+        }
+    }
+
+    _actSel=0; // Key stroke implies a screen update, so TerminalDisplay won't
+    // know where the current selection is.
+
+    if (_hasBlinkingCursor) 
+    {
+        _blinkCursorTimer->start(QApplication::cursorFlashTime() / 2);
+        if (_cursorBlinking)
+            blinkCursorEvent();
+        else
+            _cursorBlinking = false;
+    }
+
+    if ( emitKeyPressSignal )
+        emit keyPressedSignal(event);
+
+    event->accept();
+}
+
+void TerminalDisplay::inputMethodEvent( QInputMethodEvent* event )
+{
+    QKeyEvent keyEvent(QEvent::KeyPress,0,(Qt::KeyboardModifiers)Qt::NoModifier,event->commitString());
+    emit keyPressedSignal(&keyEvent);
+
+    _inputMethodData.preeditString = event->preeditString();
+    update(preeditRect() | _inputMethodData.previousPreeditRect);
+    
+    event->accept();
+}
+QVariant TerminalDisplay::inputMethodQuery( Qt::InputMethodQuery query ) const
+{
+    const QPoint cursorPos = _screenWindow ? _screenWindow->cursorPosition() : QPoint(0,0);
+    switch ( query ) 
+    {
+    case Qt::ImMicroFocus:
+        return imageToWidget(QRect(cursorPos.x(),cursorPos.y(),1,1));
+        break;
+    case Qt::ImFont:
+        return font();
+        break;
+    case Qt::ImCursorPosition:
+        // return the cursor position within the current line
+        return cursorPos.x();
+        break;
+    case Qt::ImSurroundingText:
+    {
+        // return the text from the current line
+        QString lineText;
+        QTextStream stream(&lineText);
+        PlainTextDecoder decoder;
+        decoder.begin(&stream);
+        decoder.decodeLine(&_image[loc(0,cursorPos.y())],_usedColumns,_lineProperties[cursorPos.y()]);
+        decoder.end();
+        return lineText;
+    }
+        break;
+    case Qt::ImCurrentSelection:
+        return QString();
+        break;
+    default:
+        break;
+    }
+
+    return QVariant();
+}
+
+bool TerminalDisplay::handleShortcutOverrideEvent(QKeyEvent* keyEvent)
+{
+    int modifiers = keyEvent->modifiers();
+
+    //  When a possible shortcut combination is pressed, 
+    //  emit the overrideShortcutCheck() signal to allow the host
+    //  to decide whether the terminal should override it or not.
+    if (modifiers != Qt::NoModifier) 
+    {
+        int modifierCount = 0;
+        unsigned int currentModifier = Qt::ShiftModifier;
+
+        while (currentModifier <= Qt::KeypadModifier)
+        {
+            if (modifiers & currentModifier)
+                modifierCount++;
+            currentModifier <<= 1;
+        }
+        if (modifierCount < 2) 
+        {
+            bool override = false;
+            emit overrideShortcutCheck(keyEvent,override);
+            if (override)
+            {
+                keyEvent->accept();
+                return true;
+            }
+        }
+    }
+
+    // Override any of the following shortcuts because
+    // they are needed by the terminal
+    int keyCode = keyEvent->key() | modifiers;
+    switch ( keyCode )
+    {
+    // list is taken from the QLineEdit::event() code
+    case Qt::Key_Tab:
+    case Qt::Key_Delete:
+    case Qt::Key_Home:
+    case Qt::Key_End:
+    case Qt::Key_Backspace:
+    case Qt::Key_Left:
+    case Qt::Key_Right:
+        keyEvent->accept();
+        return true;
+    }
+    return false;
+}
+
+bool TerminalDisplay::event(QEvent* event)
+{
+    bool eventHandled = false;
+    switch (event->type())
+    {
+    case QEvent::ShortcutOverride:
+        eventHandled = handleShortcutOverrideEvent((QKeyEvent*)event);
+        break;
+    case QEvent::PaletteChange:
+    case QEvent::ApplicationPaletteChange:
+        _scrollBar->setPalette( QApplication::palette() );
+        break;
+    default:
+        break;
+    }
+    return eventHandled ? true : QWidget::event(event);
+}
+
+void TerminalDisplay::setBellMode(int mode)
+{
+    _bellMode=mode;
+}
+
+void TerminalDisplay::enableBell()
+{
+    _allowBell = true;
+}
+
+void TerminalDisplay::bell(const QString& message)
+{
+    Q_UNUSED(message);
+    if (_bellMode==NoBell) return;
+
+    //limit the rate at which bells can occur
+    //...mainly for sound effects where rapid bells in sequence
+    //produce a horrible noise
+    if ( _allowBell )
+    {
+        _allowBell = false;
+        QTimer::singleShot(500,this,SLOT(enableBell()));
+
+        if (_bellMode==SystemBeepBell)
+        {
+            // TODO: This will need added back in at some point
+            //KNotification::beep();
+        }
+        else if (_bellMode==NotifyBell)
+        {
+            // TODO: This will need added back in at some point
+            //KNotification::event("BellVisible", message,QPixmap(),this);
+        }
+        else if (_bellMode==VisualBell)
+        {
+            swapColorTable();
+            QTimer::singleShot(200,this,SLOT(swapColorTable()));
+        }
+    }
+}
+
+void TerminalDisplay::swapColorTable()
+{
+    ColorEntry color = _colorTable[1];
+    _colorTable[1]=_colorTable[0];
+    _colorTable[0]= color;
+    _colorsInverted = !_colorsInverted;
+    update();
+}
+
+void TerminalDisplay::clearImage()
+{
+    // We initialize _image[_imageSize] too. See makeImage()
+    for (int i = 0; i <= _imageSize; i++)
+    {
+        _image[i].character = ' ';
+        _image[i].foregroundColor = CharacterColor(COLOR_SPACE_DEFAULT,
+                                                   DEFAULT_FORE_COLOR);
+        _image[i].backgroundColor = CharacterColor(COLOR_SPACE_DEFAULT,
+                                                   DEFAULT_BACK_COLOR);
+        _image[i].rendition = DEFAULT_RENDITION;
+    }
+}
+
+void TerminalDisplay::calcGeometry()
+{
+    _scrollBar->resize(_scrollBar->sizeHint().width(), contentsRect().height());
+    switch(_scrollbarLocation)
+    {
+    case NoScrollBar :
+        _leftMargin = DEFAULT_LEFT_MARGIN;
+        _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN;
+        break;
+    case ScrollBarLeft :
+        _leftMargin = DEFAULT_LEFT_MARGIN + _scrollBar->width();
+        _contentWidth = contentsRect().width() - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width();
+        _scrollBar->move(contentsRect().topLeft());
+        break;
+    case ScrollBarRight:
+        _leftMargin = DEFAULT_LEFT_MARGIN;
+        _contentWidth = contentsRect().width()  - 2 * DEFAULT_LEFT_MARGIN - _scrollBar->width();
+        _scrollBar->move(contentsRect().topRight() - QPoint(_scrollBar->width()-1,0));
+        break;
+    }
+
+    _topMargin = DEFAULT_TOP_MARGIN;
+    _contentHeight = contentsRect().height() - 2 * DEFAULT_TOP_MARGIN + /* mysterious */ 1;
+
+    if (!_isFixedSize)
+    {
+        // ensure that display is always at least one column wide
+        _columns = qMax(1,_contentWidth / _fontWidth);
+        _usedColumns = qMin(_usedColumns,_columns);
+
+        // ensure that display is always at least one line high
+        _lines = qMax(1,_contentHeight / _fontHeight);
+        _usedLines = qMin(_usedLines,_lines);
+    }
+}
+
+void TerminalDisplay::makeImage()
+{
+    calcGeometry();
+
+    // confirm that array will be of non-zero size, since the painting code
+    // assumes a non-zero array length
+    Q_ASSERT( _lines > 0 && _columns > 0 );
+    Q_ASSERT( _usedLines <= _lines && _usedColumns <= _columns );
+
+    _imageSize=_lines*_columns;
+
+    // We over-commit one character so that we can be more relaxed in dealing with
+    // certain boundary conditions: _image[_imageSize] is a valid but unused position
+    _image = new Character[_imageSize+1];
+
+    clearImage();
+}
+
+// calculate the needed size, this must be synced with calcGeometry()
+void TerminalDisplay::setSize(int columns, int lines)
+{
+    int scrollBarWidth = _scrollBar->isHidden() ? 0 : _scrollBar->sizeHint().width();
+    int horizontalMargin = 2 * DEFAULT_LEFT_MARGIN;
+    int verticalMargin = 2 * DEFAULT_TOP_MARGIN;
+
+    QSize newSize = QSize( horizontalMargin + scrollBarWidth + (columns * _fontWidth)  ,
+                          verticalMargin + (lines * _fontHeight)   );
+
+    if ( newSize != size() )
+    {
+        _size = newSize;
+        updateGeometry();
+    }
+}
+
+void TerminalDisplay::setFixedSize(int cols, int lins)
+{
+    _isFixedSize = true;
+
+    //ensure that display is at least one line by one column in size
+    _columns = qMax(1,cols);
+    _lines = qMax(1,lins);
+    _usedColumns = qMin(_usedColumns,_columns);
+    _usedLines = qMin(_usedLines,_lines);
+
+    if (_image)
+    {
+        delete[] _image;
+        makeImage();
+    }
+    setSize(cols, lins);
+    QWidget::setFixedSize(_size);
+}
+
+QSize TerminalDisplay::sizeHint() const
+{
+    return _size;
+}
+
+
+/* --------------------------------------------------------------------- */
+/*                                                                       */
+/* Drag & Drop                                                           */
+/*                                                                       */
+/* --------------------------------------------------------------------- */
+
+void TerminalDisplay::dragEnterEvent(QDragEnterEvent* event)
+{
+    if (event->mimeData()->hasFormat("text/plain"))
+        event->acceptProposedAction();
+}
+
+void TerminalDisplay::dropEvent(QDropEvent* event)
+{
+    //KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
+
+    QString dropText;
+    /*
+  if (!urls.isEmpty()) 
+  {
+    for ( int i = 0 ; i < urls.count() ; i++ ) 
+    {
+        KUrl url = KIO::NetAccess::mostLocalUrl( urls[i] , 0 );
+        QString urlText;
+
+        if (url.isLocalFile())
+            urlText = url.path(); 
+        else
+            urlText = url.url();
+
+        // in future it may be useful to be able to insert file names with drag-and-drop
+        // without quoting them (this only affects paths with spaces in) 
+        urlText = KShell::quoteArg(urlText);
+
+        dropText += urlText;
+
+        if ( i != urls.count()-1 ) 
+            dropText += ' ';
+    }
+  }
+  else 
+  {
+    dropText = event->mimeData()->text();
+  }
+  */
+
+    if(event->mimeData()->hasFormat("text/plain"))
+    {
+        emit sendStringToEmu(dropText.toLocal8Bit());
+    }
+}
+
+void TerminalDisplay::doDrag()
+{
+    dragInfo.state = diDragging;
+    dragInfo.dragObject = new QDrag(this);
+    QMimeData *mimeData = new QMimeData;
+    mimeData->setText(QApplication::clipboard()->text(QClipboard::Selection));
+    dragInfo.dragObject->setMimeData(mimeData);
+    dragInfo.dragObject->start(Qt::CopyAction);
+    // Don't delete the QTextDrag object.  Qt will delete it when it's done with it.
+}
+
+void TerminalDisplay::outputSuspended(bool suspended)
+{
+    //create the label when this function is first called
+    if (!_outputSuspendedLabel)
+    {
+        //This label includes a link to an English language website
+        //describing the 'flow control' (Xon/Xoff) feature found in almost
+        //all terminal emulators.
+        //If there isn't a suitable article available in the target language the link
+        //can simply be removed.
+        _outputSuspendedLabel = new QLabel( QString("<qt>Output has been "
+                                                    "<a href=\"http://en.wikipedia.org/wiki/Flow_control\">suspended</a>"
+                                                    " by pressing Ctrl+S."
+                                                    "  Press <b>Ctrl+Q</b> to resume.</qt>"),
+                                           this );
+
+        QPalette palette(_outputSuspendedLabel->palette());
+        //KColorScheme::adjustBackground(palette,KColorScheme::NeutralBackground);
+        _outputSuspendedLabel->setPalette(palette);
+        _outputSuspendedLabel->setAutoFillBackground(true);
+        _outputSuspendedLabel->setBackgroundRole(QPalette::Base);
+        _outputSuspendedLabel->setFont(QApplication::font());
+        _outputSuspendedLabel->setContentsMargins(5, 5, 5, 5);
+
+        //enable activation of "Xon/Xoff" link in label
+        _outputSuspendedLabel->setTextInteractionFlags(Qt::LinksAccessibleByMouse |
+                                                       Qt::LinksAccessibleByKeyboard);
+        _outputSuspendedLabel->setOpenExternalLinks(true);
+        _outputSuspendedLabel->setVisible(false);
+
+        _gridLayout->addWidget(_outputSuspendedLabel);
+        _gridLayout->addItem( new QSpacerItem(0,0,QSizePolicy::Expanding,
+                                              QSizePolicy::Expanding),
+                             1,0);
+
+    }
+
+    _outputSuspendedLabel->setVisible(suspended);
+}
+
+uint TerminalDisplay::lineSpacing() const
+{
+    return _lineSpacing;
+}
+
+void TerminalDisplay::setLineSpacing(uint i)
+{
+    _lineSpacing = i;
+    setVTFont(font()); // Trigger an update.
+}
+
+AutoScrollHandler::AutoScrollHandler(QWidget* parent)
+    : QObject(parent)
+    , _timerId(0)
+{
+    //parent->installEventFilter(this);
+}
+void AutoScrollHandler::timerEvent(QTimerEvent* event)
+{
+    if (event->timerId() != _timerId)
+        return;
+
+    QMouseEvent mouseEvent(    QEvent::MouseMove,
+                           widget()->mapFromGlobal(QCursor::pos()),
+                           Qt::NoButton,
+                           Qt::LeftButton,
+                           Qt::NoModifier);
+
+    QApplication::sendEvent(widget(),&mouseEvent);    
+}
+bool AutoScrollHandler::eventFilter(QObject* watched,QEvent* event)
+{
+    Q_ASSERT( watched == parent() );
+    Q_UNUSED( watched );
+
+    QMouseEvent* mouseEvent = (QMouseEvent*)event;
+    switch (event->type())
+    {
+    case QEvent::MouseMove:
+    {
+        bool mouseInWidget = widget()->rect().contains(mouseEvent->pos());
+
+        if (mouseInWidget)
+        {
+            if (_timerId)
+                killTimer(_timerId);
+            _timerId = 0;
+        }
+        else
+        {
+            if (!_timerId && (mouseEvent->buttons() & Qt::LeftButton))
+                _timerId = startTimer(100);
+        }
+        break;
+    }
+    case QEvent::MouseButtonRelease:
+        if (_timerId && (mouseEvent->buttons() & ~Qt::LeftButton))
+        {
+            killTimer(_timerId);
+            _timerId = 0;
+        }
+        break;
+    default:
+        break;
+    };
+
+    return false;
+}