From fb7d86cf23227302d48db279ec589221d11a1f6a Mon Sep 17 00:00:00 2001
From: Alan Alpert <alan.alpert@nokia.com>
Date: Wed, 29 Jul 2009 17:14:49 +1000
Subject: Move QLineEdit logic into QLineControl

Manually merged from the kinetic repository, where it has been used
for a while. Like QTextControl, there is no auto test for the control,
just for the widgets built with it.

The purpose of this change is so that we can build stuff like QLineEdit
in other places (like kinetic). Also included is a trivial change to
QValidator, needed to use it with QLineControl in QML.

Reviewed-by: mbm
---
 src/gui/widgets/qlineedit.cpp | 1869 ++++-------------------------------------
 1 file changed, 186 insertions(+), 1683 deletions(-)

(limited to 'src/gui/widgets/qlineedit.cpp')

diff --git a/src/gui/widgets/qlineedit.cpp b/src/gui/widgets/qlineedit.cpp
index c7f3e979b5..e0f5bc9656 100644
--- a/src/gui/widgets/qlineedit.cpp
+++ b/src/gui/widgets/qlineedit.cpp
@@ -86,21 +86,12 @@
 
 #include <limits.h>
 
-#define verticalMargin 1
-#define horizontalMargin 2
-
 QT_BEGIN_NAMESPACE
 
 #ifdef Q_WS_MAC
 extern void qt_mac_secure_keyboard(bool); //qapplication_mac.cpp
 #endif
 
-static inline bool shouldEnableInputMethod(QLineEdit *lineedit)
-{
-    const QLineEdit::EchoMode mode = lineedit->echoMode();
-    return !lineedit->isReadOnly() && (mode == QLineEdit::Normal || mode == QLineEdit::PasswordEchoOnEdit);
-}
-
 /*!
     Initialize \a option with the values from this QLineEdit. This method
     is useful for subclasses when they need a QStyleOptionFrame or QStyleOptionFrameV2, but don't want
@@ -122,7 +113,7 @@ void QLineEdit::initStyleOption(QStyleOptionFrame *option) const
                                  : 0;
     option->midLineWidth = 0;
     option->state |= QStyle::State_Sunken;
-    if (d->readOnly)
+    if (d->control->isReadOnly())
         option->state |= QStyle::State_ReadOnly;
 #ifdef QT_KEYPAD_NAVIGATION
     if (hasEditFocus())
@@ -350,14 +341,9 @@ QLineEdit::QLineEdit(const QString& contents, const QString &inputMask, QWidget*
 {
     Q_D(QLineEdit);
     setObjectName(QString::fromAscii(name));
-    d->parseInputMask(inputMask);
-    if (d->maskData) {
-        QString ms = d->maskString(0, contents);
-        d->init(ms + d->clearString(ms.length(), d->maxLength - ms.length()));
-        d->cursor = d->nextMaskBlank(ms.length());
-    } else {
-        d->init(contents);
-    }
+    d->init(contents);
+    d->control->setInputMask(inputMask);
+    d->control->moveCursor(d->control->nextMaskBlank(contents.length()));
 }
 #endif
 
@@ -388,19 +374,13 @@ QLineEdit::~QLineEdit()
 QString QLineEdit::text() const
 {
     Q_D(const QLineEdit);
-    QString res = d->text;
-    if (d->maskData)
-        res = d->stripString(d->text);
-    return (res.isNull() ? QString::fromLatin1("") : res);
+    return d->control->text();
 }
 
 void QLineEdit::setText(const QString& text)
 {
     Q_D(QLineEdit);
-    d->setText(text, -1, false);
-#ifdef QT_KEYPAD_NAVIGATION
-    d->origText = d->text;
-#endif
+    d->control->setText(text);
 }
 
 
@@ -421,17 +401,7 @@ void QLineEdit::setText(const QString& text)
 QString QLineEdit::displayText() const
 {
     Q_D(const QLineEdit);
-    if (d->echoMode == NoEcho)
-        return QString::fromLatin1("");
-    QString res = d->text;
-
-    if (d->echoMode == Password || (d->echoMode == PasswordEchoOnEdit
-                                    && !d->passwordEchoEditing)) {
-        QStyleOptionFrameV2 opt;
-        initStyleOption(&opt);
-        res.fill(style()->styleHint(QStyle::SH_LineEdit_PasswordCharacter, &opt, this));
-    }
-    return (res.isNull() ? QString::fromLatin1("") : res);
+    return d->control->displayText();
 }
 
 
@@ -456,20 +426,15 @@ QString QLineEdit::displayText() const
 int QLineEdit::maxLength() const
 {
     Q_D(const QLineEdit);
-    return d->maxLength;
+    return d->control->maxLength();
 }
 
 void QLineEdit::setMaxLength(int maxLength)
 {
     Q_D(QLineEdit);
-    if (d->maskData)
-        return;
-    d->maxLength = maxLength;
-    setText(d->text);
+    d->control->setMaxLength(maxLength);
 }
 
-
-
 /*!
     \property QLineEdit::frame
     \brief whether the line edit draws itself with a frame
@@ -536,22 +501,20 @@ void QLineEdit::setFrame(bool enable)
 QLineEdit::EchoMode QLineEdit::echoMode() const
 {
     Q_D(const QLineEdit);
-    return (EchoMode) d->echoMode;
+    return (EchoMode) d->control->echoMode();
 }
 
 void QLineEdit::setEchoMode(EchoMode mode)
 {
     Q_D(QLineEdit);
-    if (mode == (EchoMode)d->echoMode)
+    if (mode == (EchoMode)d->control->echoMode())
         return;
-    setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod(this));
-    d->echoMode = mode;
-    d->passwordEchoEditing = false;
-    d->updateTextLayout();
+    setAttribute(Qt::WA_InputMethodEnabled, d->shouldEnableInputMethod());
+    d->control->setEchoMode(mode);
     update();
 #ifdef Q_WS_MAC
     if (hasFocus())
-        qt_mac_secure_keyboard(d->echoMode == Password || d->echoMode == NoEcho);
+        qt_mac_secure_keyboard(mode == Password || mode == NoEcho);
 #endif
 }
 
@@ -567,7 +530,7 @@ void QLineEdit::setEchoMode(EchoMode mode)
 const QValidator * QLineEdit::validator() const
 {
     Q_D(const QLineEdit);
-    return d->validator;
+    return d->control->validator();
 }
 
 /*!
@@ -585,7 +548,7 @@ const QValidator * QLineEdit::validator() const
 void QLineEdit::setValidator(const QValidator *v)
 {
     Q_D(QLineEdit);
-    d->validator = const_cast<QValidator*>(v);
+    d->control->setValidator(v);
 }
 #endif // QT_NO_VALIDATOR
 
@@ -609,23 +572,23 @@ void QLineEdit::setValidator(const QValidator *v)
 void QLineEdit::setCompleter(QCompleter *c)
 {
     Q_D(QLineEdit);
-    if (c == d->completer)
+    if (c == d->control->completer())
         return;
-    if (d->completer) {
-        disconnect(d->completer, 0, this, 0);
-        d->completer->setWidget(0);
-        if (d->completer->parent() == this)
-            delete d->completer;
+    if (d->control->completer()) {
+        disconnect(d->control->completer(), 0, this, 0);
+        d->control->completer()->setWidget(0);
+        if (d->control->completer()->parent() == this)
+            delete d->control->completer();
     }
-    d->completer = c;
+    d->control->setCompleter(c);
     if (!c)
         return;
     if (c->widget() == 0)
         c->setWidget(this);
     if (hasFocus()) {
-        QObject::connect(d->completer, SIGNAL(activated(QString)),
+        QObject::connect(d->control->completer(), SIGNAL(activated(QString)),
                          this, SLOT(setText(QString)));
-        QObject::connect(d->completer, SIGNAL(highlighted(QString)),
+        QObject::connect(d->control->completer(), SIGNAL(highlighted(QString)),
                          this, SLOT(_q_completionHighlighted(QString)));
     }
 }
@@ -638,83 +601,9 @@ void QLineEdit::setCompleter(QCompleter *c)
 QCompleter *QLineEdit::completer() const
 {
     Q_D(const QLineEdit);
-    return d->completer;
-}
-
-// looks for an enabled item iterating forward(dir=1)/backward(dir=-1) from the
-// current row based. dir=0 indicates a new completion prefix was set.
-bool QLineEditPrivate::advanceToEnabledItem(int dir)
-{
-    int start = completer->currentRow();
-    if (start == -1)
-        return false;
-    int i = start + dir;
-    if (dir == 0) dir = 1;
-    do {
-        if (!completer->setCurrentRow(i)) {
-            if (!completer->wrapAround())
-                break;
-            i = i > 0 ? 0 : completer->completionCount() - 1;
-        } else {
-            QModelIndex currentIndex = completer->currentIndex();
-            if (completer->completionModel()->flags(currentIndex) & Qt::ItemIsEnabled)
-                return true;
-            i += dir;
-        }
-    } while (i != start);
-
-    completer->setCurrentRow(start); // restore
-    return false;
-}
-
-void QLineEditPrivate::complete(int key)
-{
-    if (!completer || readOnly || echoMode != QLineEdit::Normal)
-        return;
-
-    if (completer->completionMode() == QCompleter::InlineCompletion) {
-        if (key == Qt::Key_Backspace)
-            return;
-        int n = 0;
-        if (key == Qt::Key_Up || key == Qt::Key_Down) {
-            if (selend != 0 && selend != text.length())
-                return;
-            QString prefix = hasSelectedText() ? text.left(selstart) : text;
-            if (text.compare(completer->currentCompletion(), completer->caseSensitivity()) != 0
-                || prefix.compare(completer->completionPrefix(), completer->caseSensitivity()) != 0) {
-                completer->setCompletionPrefix(prefix);
-            } else {
-                n = (key == Qt::Key_Up) ? -1 : +1;
-            }
-        } else {
-            completer->setCompletionPrefix(text);
-        }
-        if (!advanceToEnabledItem(n))
-            return;
-    } else {
-#ifndef QT_KEYPAD_NAVIGATION
-        if (text.isEmpty()) {
-            completer->popup()->hide();
-            return;
-        }
-#endif
-        completer->setCompletionPrefix(text);
-    }
-
-    completer->complete();
+    return d->control->completer();
 }
 
-void QLineEditPrivate::_q_completionHighlighted(QString newText)
-{
-    Q_Q(QLineEdit);
-    if (completer->completionMode() != QCompleter::InlineCompletion)
-        q->setText(newText);
-    else {
-        int c = cursor;
-        q->setText(text.left(c) + newText.mid(c));
-        q->setSelection(text.length(), c - newText.length());
-    }
-}
 #endif // QT_NO_COMPLETER
 
 /*!
@@ -729,10 +618,10 @@ QSize QLineEdit::sizeHint() const
     Q_D(const QLineEdit);
     ensurePolished();
     QFontMetrics fm(font());
-    int h = qMax(fm.lineSpacing(), 14) + 2*verticalMargin
+    int h = qMax(fm.lineSpacing(), 14) + 2*d->verticalMargin
             + d->topTextMargin + d->bottomTextMargin
             + d->topmargin + d->bottommargin;
-    int w = fm.width(QLatin1Char('x')) * 17 + 2*horizontalMargin
+    int w = fm.width(QLatin1Char('x')) * 17 + 2*d->horizontalMargin
             + d->leftTextMargin + d->rightTextMargin
             + d->leftmargin + d->rightmargin; // "some"
     QStyleOptionFrameV2 opt;
@@ -753,7 +642,7 @@ QSize QLineEdit::minimumSizeHint() const
     Q_D(const QLineEdit);
     ensurePolished();
     QFontMetrics fm = fontMetrics();
-    int h = fm.height() + qMax(2*verticalMargin, fm.leading())
+    int h = fm.height() + qMax(2*d->verticalMargin, fm.leading())
             + d->topmargin + d->bottommargin;
     int w = fm.maxWidth() + d->leftmargin + d->rightmargin;
     QStyleOptionFrameV2 opt;
@@ -775,17 +664,13 @@ QSize QLineEdit::minimumSizeHint() const
 int QLineEdit::cursorPosition() const
 {
     Q_D(const QLineEdit);
-    return d->cursor;
+    return d->control->cursorPosition();
 }
 
 void QLineEdit::setCursorPosition(int pos)
 {
     Q_D(QLineEdit);
-    if (pos < 0)
-        pos = 0;
-
-    if (pos <= d->text.length())
-        d->moveCursor(pos);
+    d->control->setCursorPosition(pos);
 }
 
 /*!
@@ -807,22 +692,17 @@ int QLineEdit::cursorPositionAt(const QPoint &pos)
 bool QLineEdit::validateAndSet(const QString &newText, int newPos,
                                  int newMarkAnchor, int newMarkDrag)
 {
-    Q_D(QLineEdit);
-    int priorState = d->undoState;
-    d->selstart = 0;
-    d->selend = d->text.length();
-    d->removeSelectedText();
-    d->insert(newText);
-    d->finishChange(priorState);
-    if (d->undoState > priorState) {
-        d->cursor = newPos;
-        d->selstart = qMin(newMarkAnchor, newMarkDrag);
-        d->selend = qMax(newMarkAnchor, newMarkDrag);
-        update();
-        d->emitCursorPositionChanged();
-        return true;
+    // The suggested functions above in the docs don't seem to validate,
+    // below code tries to mimic previous behaviour.
+    QString oldText = text();
+    setText(newText);
+    if(!hasAcceptableInput()){
+        setText(oldText);
+        return false;
     }
-    return false;
+    setCursorPosition(newPos);
+    setSelection(qMin(newMarkAnchor, newMarkDrag), qAbs(newMarkAnchor - newMarkDrag));
+    return true;
 }
 #endif //QT3_SUPPORT
 
@@ -863,15 +743,7 @@ void QLineEdit::setAlignment(Qt::Alignment alignment)
 void QLineEdit::cursorForward(bool mark, int steps)
 {
     Q_D(QLineEdit);
-    int cursor = d->cursor;
-    if (steps > 0) {
-        while(steps--)
-            cursor = d->textLayout.nextCursorPosition(cursor);
-    } else if (steps < 0) {
-        while (steps++)
-            cursor = d->textLayout.previousCursorPosition(cursor);
-    }
-    d->moveCursor(cursor, mark);
+    d->control->cursorForward(mark, steps);
 }
 
 
@@ -896,7 +768,7 @@ void QLineEdit::cursorBackward(bool mark, int steps)
 void QLineEdit::cursorWordForward(bool mark)
 {
     Q_D(QLineEdit);
-    d->moveCursor(d->textLayout.nextCursorPosition(d->cursor, QTextLayout::SkipWords), mark);
+    d->control->cursorWordForward(mark);
 }
 
 /*!
@@ -909,7 +781,7 @@ void QLineEdit::cursorWordForward(bool mark)
 void QLineEdit::cursorWordBackward(bool mark)
 {
     Q_D(QLineEdit);
-    d->moveCursor(d->textLayout.previousCursorPosition(d->cursor, QTextLayout::SkipWords), mark);
+    d->control->cursorWordBackward(mark);
 }
 
 
@@ -924,26 +796,7 @@ void QLineEdit::cursorWordBackward(bool mark)
 void QLineEdit::backspace()
 {
     Q_D(QLineEdit);
-    int priorState = d->undoState;
-    if (d->hasSelectedText()) {
-        d->removeSelectedText();
-    } else if (d->cursor) {
-            --d->cursor;
-            if (d->maskData)
-                d->cursor = d->prevMaskBlank(d->cursor);
-            QChar uc = d->text.at(d->cursor);
-            if (d->cursor > 0 && uc.unicode() >= 0xdc00 && uc.unicode() < 0xe000) {
-                // second half of a surrogate, check if we have the first half as well,
-                // if yes delete both at once
-                uc = d->text.at(d->cursor - 1);
-                if (uc.unicode() >= 0xd800 && uc.unicode() < 0xdc00) {
-                    d->del(true);
-                    --d->cursor;
-                }
-            }
-            d->del(true);
-    }
-    d->finishChange(priorState);
+    d->control->backspace();
 }
 
 /*!
@@ -957,15 +810,7 @@ void QLineEdit::backspace()
 void QLineEdit::del()
 {
     Q_D(QLineEdit);
-    int priorState = d->undoState;
-    if (d->hasSelectedText()) {
-        d->removeSelectedText();
-    } else {
-        int n = d->textLayout.nextCursorPosition(d->cursor) - d->cursor;
-        while (n--)
-            d->del();
-    }
-    d->finishChange(priorState);
+    d->control->del();
 }
 
 /*!
@@ -980,7 +825,7 @@ void QLineEdit::del()
 void QLineEdit::home(bool mark)
 {
     Q_D(QLineEdit);
-    d->moveCursor(0, mark);
+    d->control->home(mark);
 }
 
 /*!
@@ -995,7 +840,7 @@ void QLineEdit::home(bool mark)
 void QLineEdit::end(bool mark)
 {
     Q_D(QLineEdit);
-    d->moveCursor(d->text.length(), mark);
+    d->control->end(mark);
 }
 
 
@@ -1020,16 +865,13 @@ void QLineEdit::end(bool mark)
 bool QLineEdit::isModified() const
 {
     Q_D(const QLineEdit);
-    return d->modifiedState != d->undoState;
+    return d->control->isModified();
 }
 
 void QLineEdit::setModified(bool modified)
 {
     Q_D(QLineEdit);
-    if (modified)
-        d->modifiedState = -1;
-    else
-        d->modifiedState = d->undoState;
+    d->control->setModified(modified);
 }
 
 
@@ -1057,7 +899,7 @@ Use setModified(false) instead.
 bool QLineEdit::hasSelectedText() const
 {
     Q_D(const QLineEdit);
-    return d->hasSelectedText();
+    return d->control->hasSelectedText();
 }
 
 /*!
@@ -1075,9 +917,7 @@ bool QLineEdit::hasSelectedText() const
 QString QLineEdit::selectedText() const
 {
     Q_D(const QLineEdit);
-    if (d->hasSelectedText())
-        return d->text.mid(d->selstart, d->selend - d->selstart);
-    return QString();
+    return d->control->selectedText();
 }
 
 /*!
@@ -1090,7 +930,7 @@ QString QLineEdit::selectedText() const
 int QLineEdit::selectionStart() const
 {
     Q_D(const QLineEdit);
-    return d->hasSelectedText() ? d->selstart : -1;
+    return d->control->selectionStart();
 }
 
 
@@ -1120,9 +960,10 @@ void QLineEdit::setEdited(bool on) { setModified(on); }
 int QLineEdit::characterAt(int xpos, QChar *chr) const
 {
     Q_D(const QLineEdit);
-    int pos = d->xToPos(xpos + contentsRect().x() - d->hscroll + horizontalMargin);
-    if (chr && pos < (int) d->text.length())
-        *chr = d->text.at(pos);
+    int pos = d->xToPos(xpos + contentsRect().x() - d->hscroll + d->horizontalMargin);
+    QString txt = d->control->text();
+    if (chr && pos < (int) txt.length())
+        *chr = txt.at(pos);
     return pos;
 
 }
@@ -1133,9 +974,9 @@ int QLineEdit::characterAt(int xpos, QChar *chr) const
 bool QLineEdit::getSelection(int *start, int *end)
 {
     Q_D(QLineEdit);
-    if (d->hasSelectedText() && start && end) {
-        *start = d->selstart;
-        *end = d->selend;
+    if (d->control->hasSelectedText() && start && end) {
+        *start = selectionStart();
+        *end = *start + selectedText().length();
         return true;
     }
     return false;
@@ -1153,30 +994,19 @@ bool QLineEdit::getSelection(int *start, int *end)
 void QLineEdit::setSelection(int start, int length)
 {
     Q_D(QLineEdit);
-    if (start < 0 || start > (int)d->text.length()) {
+    if (start < 0 || start > (int)d->control->text().length()) {
         qWarning("QLineEdit::setSelection: Invalid start position (%d)", start);
         return;
-    } else {
-        if (length > 0) {
-            d->selstart = start;
-            d->selend = qMin(start + length, (int)d->text.length());
-            d->cursor = d->selend;
-        } else {
-            d->selstart = qMax(start + length, 0);
-            d->selend = start;
-            d->cursor = d->selstart;
-        }
     }
 
-    if (d->hasSelectedText()){
+    d->control->setSelection(start, length);
+
+    if (d->control->hasSelectedText()){
         QStyleOptionFrameV2 opt;
         initStyleOption(&opt);
         if (!style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
             d->setCursorVisible(false);
     }
-
-    update();
-    d->emitCursorPositionChanged();
 }
 
 
@@ -1192,7 +1022,7 @@ void QLineEdit::setSelection(int start, int length)
 bool QLineEdit::isUndoAvailable() const
 {
     Q_D(const QLineEdit);
-    return d->isUndoAvailable();
+    return d->control->isUndoAvailable();
 }
 
 /*!
@@ -1208,7 +1038,7 @@ bool QLineEdit::isUndoAvailable() const
 bool QLineEdit::isRedoAvailable() const
 {
     Q_D(const QLineEdit);
-    return d->isRedoAvailable();
+    return d->control->isRedoAvailable();
 }
 
 /*!
@@ -1244,7 +1074,7 @@ void QLineEdit::setDragEnabled(bool b)
 bool QLineEdit::hasAcceptableInput() const
 {
     Q_D(const QLineEdit);
-    return d->hasAcceptableInput(d->text);
+    return d->control->hasAcceptableInput();
 }
 
 /*!
@@ -1350,15 +1180,13 @@ void QLineEdit::getTextMargins(int *left, int *top, int *right, int *bottom) con
 QString QLineEdit::inputMask() const
 {
     Q_D(const QLineEdit);
-    return (d->maskData ? d->inputMask + QLatin1Char(';') + d->blank : QString());
+    return d->control->inputMask();
 }
 
 void QLineEdit::setInputMask(const QString &inputMask)
 {
     Q_D(QLineEdit);
-    d->parseInputMask(inputMask);
-    if (d->maskData)
-        d->moveCursor(d->nextMaskBlank(0));
+    d->control->setInputMask(inputMask);
 }
 
 /*!
@@ -1373,8 +1201,7 @@ void QLineEdit::setInputMask(const QString &inputMask)
 void QLineEdit::selectAll()
 {
     Q_D(QLineEdit);
-    d->selstart = d->selend = d->cursor = 0;
-    d->moveCursor(d->text.length(), true);
+    d->control->selectAll();
 }
 
 /*!
@@ -1386,8 +1213,7 @@ void QLineEdit::selectAll()
 void QLineEdit::deselect()
 {
     Q_D(QLineEdit);
-    d->deselect();
-    d->finishChange();
+    d->control->deselect();
 }
 
 
@@ -1402,10 +1228,7 @@ void QLineEdit::insert(const QString &newText)
 {
 //     q->resetInputContext(); //#### FIX ME IN QT
     Q_D(QLineEdit);
-    int priorState = d->undoState;
-    d->removeSelectedText();
-    d->insert(newText);
-    d->finishChange(priorState);
+    d->control->insert(newText);
 }
 
 /*!
@@ -1416,13 +1239,8 @@ void QLineEdit::insert(const QString &newText)
 void QLineEdit::clear()
 {
     Q_D(QLineEdit);
-    int priorState = d->undoState;
     resetInputContext();
-    d->selstart = 0;
-    d->selend = d->text.length();
-    d->removeSelectedText();
-    d->separate();
-    d->finishChange(priorState, /*update*/false, /*edited*/false);
+    d->control->clear();
 }
 
 /*!
@@ -1435,8 +1253,7 @@ void QLineEdit::undo()
 {
     Q_D(QLineEdit);
     resetInputContext();
-    d->undo();
-    d->finishChange(-1, true);
+    d->control->undo();
 }
 
 /*!
@@ -1447,8 +1264,7 @@ void QLineEdit::redo()
 {
     Q_D(QLineEdit);
     resetInputContext();
-    d->redo();
-    d->finishChange();
+    d->control->redo();
 }
 
 
@@ -1470,16 +1286,16 @@ void QLineEdit::redo()
 bool QLineEdit::isReadOnly() const
 {
     Q_D(const QLineEdit);
-    return d->readOnly;
+    return d->control->isReadOnly();
 }
 
 void QLineEdit::setReadOnly(bool enable)
 {
     Q_D(QLineEdit);
-    if (d->readOnly != enable) {
-        d->readOnly = enable;
-        setAttribute(Qt::WA_MacShowFocusRect, !d->readOnly);
-        setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod(this));
+    if (d->control->isReadOnly() != enable) {
+        d->control->setReadOnly(enable);
+        setAttribute(Qt::WA_MacShowFocusRect, !enable);
+        setAttribute(Qt::WA_InputMethodEnabled, d->shouldEnableInputMethod());
 #ifndef QT_NO_CURSOR
         setCursor(enable ? Qt::ArrowCursor : Qt::IBeamCursor);
 #endif
@@ -1518,7 +1334,7 @@ void QLineEdit::cut()
 void QLineEdit::copy() const
 {
     Q_D(const QLineEdit);
-    d->copy();
+    d->control->copy();
 }
 
 /*!
@@ -1535,23 +1351,7 @@ void QLineEdit::copy() const
 void QLineEdit::paste()
 {
     Q_D(QLineEdit);
-    if (echoMode() == PasswordEchoOnEdit && !d->passwordEchoEditing) {
-        // Clear the edit and reset to normal echo mode when pasting; the echo
-        // mode switches back when the edit loses focus.  ### changes a public
-        // property, resets current content
-        d->updatePasswordEchoEditing(true);
-        clear();
-    }
-    insert(QApplication::clipboard()->text(QClipboard::Clipboard));
-}
-
-void QLineEditPrivate::copy(bool clipboard) const
-{
-    Q_Q(const QLineEdit);
-    QString t = q->selectedText();
-    if (!t.isEmpty() && echoMode == QLineEdit::Normal) {
-        QApplication::clipboard()->setText(t, clipboard ? QClipboard::Clipboard : QClipboard::Selection);
-    }
+    d->control->paste();
 }
 
 #endif // !QT_NO_CLIPBOARD
@@ -1561,57 +1361,10 @@ void QLineEditPrivate::copy(bool clipboard) const
 bool QLineEdit::event(QEvent * e)
 {
     Q_D(QLineEdit);
-#ifndef QT_NO_SHORTCUT
-    if (e->type() == QEvent::ShortcutOverride && !d->readOnly) {
-        QKeyEvent* ke = (QKeyEvent*) e;
-        if (ke == QKeySequence::Copy
-            || ke == QKeySequence::Paste
-            || ke == QKeySequence::Cut
-            || ke == QKeySequence::Redo
-            || ke == QKeySequence::Undo
-            || ke == QKeySequence::MoveToNextWord
-            || ke == QKeySequence::MoveToPreviousWord
-            || ke == QKeySequence::MoveToStartOfDocument
-            || ke == QKeySequence::MoveToEndOfDocument
-            || ke == QKeySequence::SelectNextWord
-            || ke == QKeySequence::SelectPreviousWord
-            || ke == QKeySequence::SelectStartOfLine
-            || ke == QKeySequence::SelectEndOfLine
-            || ke == QKeySequence::SelectStartOfBlock
-            || ke == QKeySequence::SelectEndOfBlock
-            || ke == QKeySequence::SelectStartOfDocument
-            || ke == QKeySequence::SelectAll
-            || ke == QKeySequence::SelectEndOfDocument) {
-            ke->accept();
-        } else if (ke->modifiers() == Qt::NoModifier || ke->modifiers() == Qt::ShiftModifier
-                   || ke->modifiers() == Qt::KeypadModifier) {
-            if (ke->key() < Qt::Key_Escape) {
-                ke->accept();
-            } else {
-                switch (ke->key()) {
-                case Qt::Key_Delete:
-                case Qt::Key_Home:
-                case Qt::Key_End:
-                case Qt::Key_Backspace:
-                case Qt::Key_Left:
-                case Qt::Key_Right:
-                    ke->accept();
-                default:
-                    break;
-                }
-            }
-        }
-    } else
-#endif
-        if (e->type() == QEvent::Timer) {
+    if (e->type() == QEvent::Timer) {
         // should be timerEvent, is here for binary compatibility
         int timerId = ((QTimerEvent*)e)->timerId();
-        if (timerId == d->cursorTimer) {
-            QStyleOptionFrameV2 opt;
-            initStyleOption(&opt);
-            if(!hasSelectedText()
-               || style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
-                d->setCursorVisible(!d->cursorVisible);
+        if (false) {
 #ifndef QT_NO_DRAGANDDROP
         } else if (timerId == d->dndTimer.timerId()) {
             d->drag();
@@ -1619,60 +1372,31 @@ bool QLineEdit::event(QEvent * e)
         }
         else if (timerId == d->tripleClickTimer.timerId())
             d->tripleClickTimer.stop();
-#ifdef QT_KEYPAD_NAVIGATION
-        else if (timerId == d->deleteAllTimer.timerId()) {
-            d->deleteAllTimer.stop();
-            clear();
-        }
-#endif
     } else if (e->type() == QEvent::ContextMenu) {
 #ifndef QT_NO_IM
-        if (d->composeMode())
+        if (d->control->composeMode())
             return true;
 #endif
-        d->separate();
+        //d->separate();
     } else if (e->type() == QEvent::WindowActivate) {
         QTimer::singleShot(0, this, SLOT(_q_handleWindowActivate()));
+    }else if(e->type() == QEvent::ShortcutOverride){
+        d->control->processEvent(e);
     }
+
 #ifdef QT_KEYPAD_NAVIGATION
     if (QApplication::keypadNavigationEnabled()) {
-        if ((e->type() == QEvent::KeyPress) || (e->type() == QEvent::KeyRelease)) {
-            QKeyEvent *ke = (QKeyEvent *)e;
-            if (ke->key() == Qt::Key_Back) {
-                if (ke->isAutoRepeat()) {
-                    // Swallow it. We don't want back keys running amok.
-                    ke->accept();
-                    return true;
-                }
-                if ((e->type() == QEvent::KeyRelease)
-                    && !isReadOnly()
-                    && d->deleteAllTimer.isActive()) {
-                    d->deleteAllTimer.stop();
-                    backspace();
-                    ke->accept();
-                    return true;
-                }
-            }
-        } else if (e->type() == QEvent::EnterEditFocus) {
+        if (e->type() == QEvent::EnterEditFocus) {
             end(false);
-            if (!d->cursorTimer) {
-                int cft = QApplication::cursorFlashTime();
-                d->cursorTimer = cft ? startTimer(cft/2) : -1;
-            }
+            int cft = QApplication::cursorFlashTime();
+            d->control->setCursorBlinkPeriod(cft/2);
         } else if (e->type() == QEvent::LeaveEditFocus) {
             d->setCursorVisible(false);
-            if (d->cursorTimer > 0)
-                killTimer(d->cursorTimer);
-            d->cursorTimer = 0;
-
-            if (!d->emitingEditingFinished) {
-                if (hasAcceptableInput() || d->fixup()) {
-                    d->emitingEditingFinished = true;
-                    emit editingFinished();
-                    d->emitingEditingFinished = false;
-                }
-            }
+            d->control->setCursorBlinkPeriod(0);
+            if (d->control->hasAcceptableInput() || d->control->fixup())
+                emit editingFinished();
         }
+        return true;
     }
 #endif
     return QWidget::event(e);
@@ -1684,15 +1408,15 @@ void QLineEdit::mousePressEvent(QMouseEvent* e)
 {
     Q_D(QLineEdit);
     if (d->sendMouseEventToInputContext(e))
-	return;
+        return;
     if (e->button() == Qt::RightButton)
         return;
 #ifdef QT_KEYPAD_NAVIGATION
     if (QApplication::keypadNavigationEnabled() && !hasEditFocus()) {
         setEditFocus(true);
         // Get the completion list to pop up.
-        if (d->completer)
-            d->completer->complete();
+        if (d->control->completer())
+            d->control->completer()->complete();
     }
 #endif
     if (d->tripleClickTimer.isActive() && (e->pos() - d->tripleClick).manhattanLength() <
@@ -1703,18 +1427,16 @@ void QLineEdit::mousePressEvent(QMouseEvent* e)
     bool mark = e->modifiers() & Qt::ShiftModifier;
     int cursor = d->xToPos(e->pos().x());
 #ifndef QT_NO_DRAGANDDROP
-    if (!mark && d->dragEnabled && d->echoMode == Normal &&
-         e->button() == Qt::LeftButton && d->inSelection(e->pos().x())) {
-        d->cursor = cursor;
-        update();
+    if (!mark && d->dragEnabled && d->control->echoMode() == Normal &&
+         e->button() == Qt::LeftButton && d->control->inSelection(e->pos().x())) {
+        d->control->moveCursor(cursor);
         d->dndPos = e->pos();
         if (!d->dndTimer.isActive())
             d->dndTimer.start(QApplication::startDragTime(), this);
-        d->emitCursorPositionChanged();
     } else
 #endif
     {
-        d->moveCursor(cursor, mark);
+        d->control->moveCursor(cursor, mark);
     }
 }
 
@@ -1724,7 +1446,7 @@ void QLineEdit::mouseMoveEvent(QMouseEvent * e)
 {
     Q_D(QLineEdit);
     if (d->sendMouseEventToInputContext(e))
-	return;
+        return;
 
     if (e->buttons() & Qt::LeftButton) {
 #ifndef QT_NO_DRAGANDDROP
@@ -1734,7 +1456,7 @@ void QLineEdit::mouseMoveEvent(QMouseEvent * e)
         } else
 #endif
         {
-            d->moveCursor(d->xToPos(e->pos().x()), true);
+            d->control->moveCursor(d->xToPos(e->pos().x()), true);
         }
     }
 }
@@ -1745,7 +1467,7 @@ void QLineEdit::mouseReleaseEvent(QMouseEvent* e)
 {
     Q_D(QLineEdit);
     if (d->sendMouseEventToInputContext(e))
-	return;
+        return;
 #ifndef QT_NO_DRAGANDDROP
     if (e->button() == Qt::LeftButton) {
         if (d->dndTimer.isActive()) {
@@ -1758,9 +1480,9 @@ void QLineEdit::mouseReleaseEvent(QMouseEvent* e)
 #ifndef QT_NO_CLIPBOARD
     if (QApplication::clipboard()->supportsSelection()) {
         if (e->button() == Qt::LeftButton) {
-            d->copy(false);
-        } else if (!d->readOnly && e->button() == Qt::MidButton) {
-            d->deselect();
+            d->control->copy(QClipboard::Selection);
+        } else if (!d->control->isReadOnly() && e->button() == Qt::MidButton) {
+            deselect();
             insert(QApplication::clipboard()->text(QClipboard::Selection));
         }
     }
@@ -1773,16 +1495,9 @@ void QLineEdit::mouseDoubleClickEvent(QMouseEvent* e)
 {
     Q_D(QLineEdit);
     if (d->sendMouseEventToInputContext(e))
-	return;
+        return;
     if (e->button() == Qt::LeftButton) {
-        deselect();
-        d->cursor = d->xToPos(e->pos().x());
-        d->cursor = d->textLayout.previousCursorPosition(d->cursor, QTextLayout::SkipWords);
-        // ## text layout should support end of words.
-        int end = d->textLayout.nextCursorPosition(d->cursor, QTextLayout::SkipWords);
-        while (end > d->cursor && d->text[end-1].isSpace())
-            --end;
-        d->moveCursor(end, true);
+        d->control->selectWordAtPos(d->xToPos(e->pos().x()));
         d->tripleClickTimer.start(QApplication::doubleClickInterval(), this);
         d->tripleClick = e->pos();
     }
@@ -1822,65 +1537,15 @@ void QLineEdit::mouseDoubleClickEvent(QMouseEvent* e)
 void QLineEdit::keyPressEvent(QKeyEvent *event)
 {
     Q_D(QLineEdit);
-
-    bool inlineCompletionAccepted = false;
-
-#ifndef QT_NO_COMPLETER
-    if (d->completer) {
-        QCompleter::CompletionMode completionMode = d->completer->completionMode();
-        if ((completionMode == QCompleter::PopupCompletion
-             || completionMode == QCompleter::UnfilteredPopupCompletion)
-            &&d->completer->popup()
-            && d->completer->popup()->isVisible()) {
-            // The following keys are forwarded by the completer to the widget
-            // Ignoring the events lets the completer provide suitable default behavior
-            switch (event->key()) {
-            case Qt::Key_Escape:
-                event->ignore();
-                return;
-            case Qt::Key_Enter:
-            case Qt::Key_Return:
-            case Qt::Key_F4:
-#ifdef QT_KEYPAD_NAVIGATION
-            case Qt::Key_Select:
-                if (!QApplication::keypadNavigationEnabled())
-                    break;
-#endif
-                d->completer->popup()->hide(); // just hide. will end up propagating to parent
-            default:
-                break; // normal key processing
-            }
-        } else if (completionMode == QCompleter::InlineCompletion) {
-            switch (event->key()) {
-            case Qt::Key_Enter:
-            case Qt::Key_Return:
-            case Qt::Key_F4:
-#ifdef QT_KEYPAD_NAVIGATION
-            case Qt::Key_Select:
-                if (!QApplication::keypadNavigationEnabled())
-                    break;
-#endif
-                if (!d->completer->currentCompletion().isEmpty() && d->selend > d->selstart
-                    && d->selend == d->text.length()) {
-                    setText(d->completer->currentCompletion());
-                    inlineCompletionAccepted = true;
-                }
-            default:
-                break; // normal key processing
-            }
-        }
-    }
-#endif // QT_NO_COMPLETER
-
-#ifdef QT_KEYPAD_NAVIGATION
+    #ifdef QT_KEYPAD_NAVIGATION
     bool select = false;
     switch (event->key()) {
         case Qt::Key_Select:
             if (QApplication::keypadNavigationEnabled()) {
                 if (hasEditFocus()) {
                     setEditFocus(false);
-                    if (d->completer && d->completer->popup()->isVisible())
-                        d->completer->popup()->hide();
+                    if (d->control->completer() && d->control->completer()->popup()->isVisible())
+                        d->control->completer()->popup()->hide();
                     select = true;
                 }
             }
@@ -1916,273 +1581,7 @@ void QLineEdit::keyPressEvent(QKeyEvent *event)
             return; // Just start. No action.
     }
 #endif
-
-    if (echoMode() == PasswordEchoOnEdit
-        && !d->passwordEchoEditing
-        && !isReadOnly()
-        && !event->text().isEmpty()
-#ifdef QT_KEYPAD_NAVIGATION
-        && event->key() != Qt::Key_Select
-        && event->key() != Qt::Key_Up
-        && event->key() != Qt::Key_Down
-        && event->key() != Qt::Key_Back
-#endif
-        && !(event->modifiers() & Qt::ControlModifier)) {
-        // Clear the edit and reset to normal echo mode while editing; the
-        // echo mode switches back when the edit loses focus.  ### changes a
-        // public property, resets current content.  dubious code; you can
-        // navigate with keys up, down, back, and select(?), but if you press
-        // "left" or "right" it clears?
-        d->updatePasswordEchoEditing(true);
-        clear();
-    }
-
-    d->setCursorVisible(true);
-    if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return) {
-        if (hasAcceptableInput() || d->fixup()) {
-            emit returnPressed();
-            d->emitingEditingFinished = true;
-            emit editingFinished();
-            d->emitingEditingFinished = false;
-        }
-        if (inlineCompletionAccepted)
-            event->accept();
-        else
-            event->ignore();
-        return;
-    }
-    bool unknown = false;
-
-    if (false) {
-    }
-#ifndef QT_NO_SHORTCUT
-    else if (event == QKeySequence::Undo) {
-        if (!d->readOnly)
-            undo();
-    }
-    else if (event == QKeySequence::Redo) {
-        if (!d->readOnly)
-            redo();
-    }
-    else if (event == QKeySequence::SelectAll) {
-        selectAll();
-    }
-#ifndef QT_NO_CLIPBOARD
-    else if (event == QKeySequence::Copy) {
-        copy();
-    }
-    else if (event == QKeySequence::Paste) {
-        if (!d->readOnly)
-            paste();
-    }
-    else if (event == QKeySequence::Cut) {
-        if (!d->readOnly) {
-            cut();
-        }
-    }
-    else if (event == QKeySequence::DeleteEndOfLine) {
-        if (!d->readOnly) {
-            setSelection(d->cursor, d->text.size());
-            copy();
-            del();
-        }
-    }
-#endif //QT_NO_CLIPBOARD
-    else if (event == QKeySequence::MoveToStartOfLine) {
-        home(0);
-    }
-    else if (event == QKeySequence::MoveToEndOfLine) {
-        end(0);
-    }
-    else if (event == QKeySequence::SelectStartOfLine) {
-        home(1);
-    }
-    else if (event == QKeySequence::SelectEndOfLine) {
-        end(1);
-    }
-    else if (event == QKeySequence::MoveToNextChar) {
-#if !defined(Q_WS_WIN) || defined(QT_NO_COMPLETER)
-        if (d->hasSelectedText()) {
-#else
-        if (d->hasSelectedText() && d->completer
-            && d->completer->completionMode() == QCompleter::InlineCompletion) {
-#endif
-            d->moveCursor(d->selend, false);
-        } else {
-            cursorForward(0, layoutDirection() == Qt::LeftToRight ? 1 : -1);
-        }
-    }
-    else if (event == QKeySequence::SelectNextChar) {
-        cursorForward(1, layoutDirection() == Qt::LeftToRight ? 1 : -1);
-    }
-    else if (event == QKeySequence::MoveToPreviousChar) {
-#if !defined(Q_WS_WIN) || defined(QT_NO_COMPLETER)
-        if (d->hasSelectedText()) {
-#else
-        if (d->hasSelectedText() && d->completer
-            && d->completer->completionMode() == QCompleter::InlineCompletion) {
-#endif
-            d->moveCursor(d->selstart, false);
-        } else {
-            cursorBackward(0, layoutDirection() == Qt::LeftToRight ? 1 : -1);
-        }
-    }
-    else if (event == QKeySequence::SelectPreviousChar) {
-        cursorBackward(1, layoutDirection() == Qt::LeftToRight ? 1 : -1);
-    }
-    else if (event == QKeySequence::MoveToNextWord) {
-        if (echoMode() == Normal)
-            layoutDirection() == Qt::LeftToRight ? cursorWordForward(0) : cursorWordBackward(0);
-        else
-            layoutDirection() == Qt::LeftToRight ? end(0) : home(0);
-    }
-    else if (event == QKeySequence::MoveToPreviousWord) {
-        if (echoMode() == Normal)
-            layoutDirection() == Qt::LeftToRight ? cursorWordBackward(0) : cursorWordForward(0);
-        else if (!d->readOnly) {
-            layoutDirection() == Qt::LeftToRight ? home(0) : end(0);
-        }
-    }
-    else if (event == QKeySequence::SelectNextWord) {
-        if (echoMode() == Normal)
-            layoutDirection() == Qt::LeftToRight ? cursorWordForward(1) : cursorWordBackward(1);
-        else
-            layoutDirection() == Qt::LeftToRight ? end(1) : home(1);
-    }
-    else if (event == QKeySequence::SelectPreviousWord) {
-        if (echoMode() == Normal)
-            layoutDirection() == Qt::LeftToRight ? cursorWordBackward(1) : cursorWordForward(1);
-        else
-            layoutDirection() == Qt::LeftToRight ? home(1) : end(1);
-    }
-    else if (event == QKeySequence::Delete) {
-        if (!d->readOnly)
-            del();
-    }
-    else if (event == QKeySequence::DeleteEndOfWord) {
-        if (!d->readOnly) {
-            cursorWordForward(true);
-            del();
-        }
-    }
-    else if (event == QKeySequence::DeleteStartOfWord) {
-        if (!d->readOnly) {
-            cursorWordBackward(true);
-            del();
-        }
-    }
-#endif // QT_NO_SHORTCUT
-    else {
-#ifdef Q_WS_MAC
-        if (event->key() == Qt::Key_Up || event->key() == Qt::Key_Down) {
-            Qt::KeyboardModifiers myModifiers = (event->modifiers() & ~Qt::KeypadModifier);
-            if (myModifiers & Qt::ShiftModifier) {
-                if (myModifiers == (Qt::ControlModifier|Qt::ShiftModifier)
-                        || myModifiers == (Qt::AltModifier|Qt::ShiftModifier)
-                        || myModifiers == Qt::ShiftModifier) {
-
-                    event->key() == Qt::Key_Up ? home(1) : end(1);
-                }
-            } else {
-                if ((myModifiers == Qt::ControlModifier
-                     || myModifiers == Qt::AltModifier
-                     || myModifiers == Qt::NoModifier)) {
-                    event->key() == Qt::Key_Up ? home(0) : end(0);
-                }
-            }
-        }
-#endif
-        if (event->modifiers() & Qt::ControlModifier) {
-            switch (event->key()) {
-            case Qt::Key_Backspace:
-                if (!d->readOnly) {
-                    cursorWordBackward(true);
-                    del();
-                }
-                break;
-#ifndef QT_NO_COMPLETER
-            case Qt::Key_Up:
-            case Qt::Key_Down:
-                d->complete(event->key());
-                break;
-#endif
-#if defined(Q_WS_X11)
-            case Qt::Key_E:
-                end(0);
-                break;
-
-            case Qt::Key_U:
-                if (!d->readOnly) {
-                    setSelection(0, d->text.size());
-#ifndef QT_NO_CLIPBOARD
-                    copy();
-#endif
-                    del();
-                }
-            break;
-#endif
-            default:
-                unknown = true;
-            }
-        } else { // ### check for *no* modifier
-            switch (event->key()) {
-            case Qt::Key_Backspace:
-                if (!d->readOnly) {
-                    backspace();
-#ifndef QT_NO_COMPLETER
-                    d->complete(Qt::Key_Backspace);
-#endif
-                }
-                break;
-#ifdef QT_KEYPAD_NAVIGATION
-            case Qt::Key_Back:
-                if (QApplication::keypadNavigationEnabled() && !event->isAutoRepeat()
-                    && !isReadOnly()) {
-                    if (text().length() == 0) {
-                        setText(d->origText);
-
-                        if (d->passwordEchoEditing)
-                            d->updatePasswordEchoEditing(false);
-
-                        setEditFocus(false);
-                    } else if (!d->deleteAllTimer.isActive()) {
-                        d->deleteAllTimer.start(750, this);
-                    }
-                } else {
-                    unknown = true;
-                }
-                break;
-#endif
-
-            default:
-                unknown = true;
-            }
-        }
-    }
-
-    if (event->key() == Qt::Key_Direction_L || event->key() == Qt::Key_Direction_R) {
-        setLayoutDirection((event->key() == Qt::Key_Direction_L) ? Qt::LeftToRight : Qt::RightToLeft);
-        d->updateTextLayout();
-        update();
-        unknown = false;
-    }
-
-    if (unknown && !d->readOnly) {
-        QString t = event->text();
-        if (!t.isEmpty() && t.at(0).isPrint()) {
-            insert(t);
-#ifndef QT_NO_COMPLETER
-            d->complete(event->key());
-#endif
-            event->accept();
-            return;
-        }
-    }
-
-    if (unknown)
-        event->ignore();
-    else
-        event->accept();
+    d->control->processKeyEvent(event);
 }
 
 /*!
@@ -2196,50 +1595,17 @@ QRect QLineEdit::cursorRect() const
     return d->cursorRect();
 }
 
-/*!
-  This function is not intended as polymorphic usage. Just a shared code
-  fragment that calls QInputContext::mouseHandler for this
-  class.
-*/
-bool QLineEditPrivate::sendMouseEventToInputContext( QMouseEvent *e )
-{
-#if !defined QT_NO_IM
-    Q_Q(QLineEdit);
-    if ( composeMode() ) {
-	int tmp_cursor = xToPos(e->pos().x());
-	int mousePos = tmp_cursor - cursor;
-	if ( mousePos < 0 || mousePos > textLayout.preeditAreaText().length() ) {
-            mousePos = -1;
-	    // don't send move events outside the preedit area
-            if ( e->type() == QEvent::MouseMove )
-                return true;
-        }
-
-        QInputContext *qic = q->inputContext();
-        if ( qic )
-            // may be causing reset() in some input methods
-            qic->mouseHandler(mousePos, e);
-        if (!textLayout.preeditAreaText().isEmpty())
-            return true;
-    }
-#else
-    Q_UNUSED(e);
-#endif
-
-    return false;
-}
-
 /*! \reimp
  */
 void QLineEdit::inputMethodEvent(QInputMethodEvent *e)
 {
     Q_D(QLineEdit);
-    if (d->readOnly) {
+    if (d->control->isReadOnly()) {
         e->ignore();
         return;
     }
 
-    if (echoMode() == PasswordEchoOnEdit && !d->passwordEchoEditing) {
+    if (echoMode() == PasswordEchoOnEdit && !d->control->passwordEchoEditing()) {
         // Clear the edit and reset to normal echo mode while entering input
         // method data; the echo mode switches back when the edit loses focus.
         // ### changes a public property, resets current content.
@@ -2259,55 +1625,11 @@ void QLineEdit::inputMethodEvent(QInputMethodEvent *e)
     }
 #endif
 
-    int priorState = d->undoState;
-    d->removeSelectedText();
-
-    int c = d->cursor; // cursor position after insertion of commit string
-    if (e->replacementStart() <= 0)
-        c += e->commitString().length() + qMin(-e->replacementStart(), e->replacementLength());
-
-    d->cursor += e->replacementStart();
+    d->control->processInputMethodEvent(e);
 
-    // insert commit string
-    if (e->replacementLength()) {
-        d->selstart = d->cursor;
-        d->selend = d->selstart + e->replacementLength();
-        d->removeSelectedText();
-    }
-    if (!e->commitString().isEmpty())
-        d->insert(e->commitString());
-
-    d->cursor = qMin(c, d->text.length());
-
-    d->textLayout.setPreeditArea(d->cursor, e->preeditString());
-    d->preeditCursor = e->preeditString().length();
-    d->hideCursor = false;
-    QList<QTextLayout::FormatRange> formats;
-    for (int i = 0; i < e->attributes().size(); ++i) {
-        const QInputMethodEvent::Attribute &a = e->attributes().at(i);
-        if (a.type == QInputMethodEvent::Cursor) {
-            d->preeditCursor = a.start;
-            d->hideCursor = !a.length;
-        } else if (a.type == QInputMethodEvent::TextFormat) {
-            QTextCharFormat f = qvariant_cast<QTextFormat>(a.value).toCharFormat();
-            if (f.isValid()) {
-                QTextLayout::FormatRange o;
-                o.start = a.start + d->cursor;
-                o.length = a.length;
-                o.format = f;
-                formats.append(o);
-            }
-        }
-    }
-    d->textLayout.setAdditionalFormats(formats);
-    d->updateTextLayout();
-    update();
-    if (!e->commitString().isEmpty())
-        d->emitCursorPositionChanged();
-    d->finishChange(priorState);
 #ifndef QT_NO_COMPLETER
     if (!e->commitString().isEmpty())
-        d->complete(Qt::Key_unknown);
+        d->control->complete(Qt::Key_unknown);
 #endif
 }
 
@@ -2322,9 +1644,9 @@ QVariant QLineEdit::inputMethodQuery(Qt::InputMethodQuery property) const
     case Qt::ImFont:
         return font();
     case Qt::ImCursorPosition:
-        return QVariant((d->selend - d->selstart == 0) ? d->cursor : d->selend);
+        return QVariant(d->control->hasSelectedText() ? d->control->selectionEnd() : d->control->cursor());
     case Qt::ImSurroundingText:
-        return QVariant(d->text);
+        return QVariant(text());
     case Qt::ImCurrentSelection:
         return QVariant(selectedText());
     default:
@@ -2341,36 +1663,34 @@ void QLineEdit::focusInEvent(QFocusEvent *e)
     if (e->reason() == Qt::TabFocusReason ||
          e->reason() == Qt::BacktabFocusReason  ||
          e->reason() == Qt::ShortcutFocusReason) {
-        if (d->maskData)
-            d->moveCursor(d->nextMaskBlank(0));
-        else if (!d->hasSelectedText())
+        if (!d->control->inputMask().isEmpty())
+            d->control->moveCursor(d->control->nextMaskBlank(0));
+        else if (!d->control->hasSelectedText())
             selectAll();
     }
 #ifdef QT_KEYPAD_NAVIGATION
     if (!QApplication::keypadNavigationEnabled() || (hasEditFocus() && e->reason() == Qt::PopupFocusReason))
 #endif
-    if (!d->cursorTimer) {
-        int cft = QApplication::cursorFlashTime();
-        d->cursorTimer = cft ? startTimer(cft/2) : -1;
-    }
+    int cft = QApplication::cursorFlashTime();
+    d->control->setCursorBlinkPeriod(cft/2);
     QStyleOptionFrameV2 opt;
     initStyleOption(&opt);
-    if((!hasSelectedText() && d->textLayout.preeditAreaText().isEmpty())
+    if((!hasSelectedText() && d->control->preeditAreaText().isEmpty())
        || style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
         d->setCursorVisible(true);
 #ifdef Q_WS_MAC
-    if (d->echoMode == Password || d->echoMode == NoEcho)
+    if (d->control->echoMode() == Password || d->control->echoMode() == NoEcho)
         qt_mac_secure_keyboard(true);
 #endif
 #ifdef QT_KEYPAD_NAVIGATION
-    d->origText = d->text;
+    d->control->setCancelText(d->text);
 #endif
 #ifndef QT_NO_COMPLETER
-    if (d->completer) {
-        d->completer->setWidget(this);
-        QObject::connect(d->completer, SIGNAL(activated(QString)),
+    if (d->control->completer()) {
+        d->control->completer()->setWidget(this);
+        QObject::connect(d->control->completer(), SIGNAL(activated(QString)),
                          this, SLOT(setText(QString)));
-        QObject::connect(d->completer, SIGNAL(highlighted(QString)),
+        QObject::connect(d->control->completer(), SIGNAL(highlighted(QString)),
                          this, SLOT(_q_completionHighlighted(QString)));
     }
 #endif
@@ -2383,7 +1703,7 @@ void QLineEdit::focusInEvent(QFocusEvent *e)
 void QLineEdit::focusOutEvent(QFocusEvent *e)
 {
     Q_D(QLineEdit);
-    if (d->passwordEchoEditing) {
+    if (d->control->passwordEchoEditing()) {
         // Reset the echomode back to PasswordEchoOnEdit when the widget loses
         // focus.
         d->updatePasswordEchoEditing(false);
@@ -2395,37 +1715,29 @@ void QLineEdit::focusOutEvent(QFocusEvent *e)
         deselect();
 
     d->setCursorVisible(false);
-    if (d->cursorTimer > 0)
-        killTimer(d->cursorTimer);
-    d->cursorTimer = 0;
-
+    d->control->setCursorBlinkPeriod(0);
 #ifdef QT_KEYPAD_NAVIGATION
     // editingFinished() is already emitted on LeaveEditFocus
     if (!QApplication::keypadNavigationEnabled())
 #endif
     if (reason != Qt::PopupFocusReason
         || !(QApplication::activePopupWidget() && QApplication::activePopupWidget()->parentWidget() == this)) {
-        if (!d->emitingEditingFinished) {
-            if (hasAcceptableInput() || d->fixup()) {
-                d->emitingEditingFinished = true;
+            if (hasAcceptableInput() || d->control->fixup())
                 emit editingFinished();
-                d->emitingEditingFinished = false;
-            }
-        }
 #ifdef QT3_SUPPORT
         emit lostFocus();
 #endif
     }
 #ifdef Q_WS_MAC
-    if (d->echoMode == Password || d->echoMode == NoEcho)
+    if (d->control->echoMode() == Password || d->control->echoMode() == NoEcho)
         qt_mac_secure_keyboard(false);
 #endif
 #ifdef QT_KEYPAD_NAVIGATION
-    d->origText = QString();
+    d->control->setCancelText(QString());
 #endif
 #ifndef QT_NO_COMPLETER
-    if (d->completer) {
-        QObject::disconnect(d->completer, 0, this, 0);
+    if (d->control->completer()) {
+        QObject::disconnect(d->control->completer(), 0, this, 0);
     }
 #endif
     update();
@@ -2455,24 +1767,19 @@ void QLineEdit::paintEvent(QPaintEvent *)
     Qt::Alignment va = QStyle::visualAlignment(layoutDirection(), QFlag(d->alignment));
     switch (va & Qt::AlignVertical_Mask) {
      case Qt::AlignBottom:
-         d->vscroll = r.y() + r.height() - fm.height() - verticalMargin;
+         d->vscroll = r.y() + r.height() - fm.height() - d->verticalMargin;
          break;
      case Qt::AlignTop:
-         d->vscroll = r.y() + verticalMargin;
+         d->vscroll = r.y() + d->verticalMargin;
          break;
      default:
          //center
          d->vscroll = r.y() + (r.height() - fm.height() + 1) / 2;
          break;
     }
-    QRect lineRect(r.x() + horizontalMargin, d->vscroll, r.width() - 2*horizontalMargin, fm.height());
-    QTextLine line = d->textLayout.lineAt(0);
+    QRect lineRect(r.x() + d->horizontalMargin, d->vscroll, r.width() - 2*d->horizontalMargin, fm.height());
 
-    int cursor = d->cursor;
-    if (d->preeditCursor != -1)
-        cursor += d->preeditCursor;
-    // locate cursor position
-    int cix = qRound(line.cursorToX(cursor));
+    int cix = qRound(d->control->cursorToX());
 
     // horizontal scrolling. d->hscroll is the left indent from the beginning
     // of the text line to the left edge of lineRect. we update this value
@@ -2482,7 +1789,7 @@ void QLineEdit::paintEvent(QPaintEvent *)
     // (cix).
     int minLB = qMax(0, -fm.minLeftBearing());
     int minRB = qMax(0, -fm.minRightBearing());
-    int widthUsed = qRound(line.naturalTextWidth()) + 1 + minRB;
+    int widthUsed = d->control->width() + minRB;
     if ((minLB + widthUsed) <=  lineRect.width()) {
         // text fits in lineRect; use hscroll for alignment
         switch (va & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) {
@@ -2510,7 +1817,7 @@ void QLineEdit::paintEvent(QPaintEvent *)
         d->hscroll = widthUsed - lineRect.width() + 1;
     }
     // the y offset is there to keep the baseline constant in case we have script changes in the text.
-    QPoint topLeft = lineRect.topLeft() - QPoint(d->hscroll, d->ascent - fm.ascent());
+    QPoint topLeft = lineRect.topLeft() - QPoint(d->hscroll, d->control->ascent() - fm.ascent());
 
     // draw text, selections and cursors
 #ifndef QT_NO_STYLE_STYLESHEET
@@ -2520,33 +1827,23 @@ void QLineEdit::paintEvent(QPaintEvent *)
 #endif
     p.setPen(pal.text().color());
 
-    QVector<QTextLayout::FormatRange> selections;
+    int flags = QLineControl::DrawText;
+
 #ifdef QT_KEYPAD_NAVIGATION
     if (!QApplication::keypadNavigationEnabled() || hasEditFocus())
 #endif
-    if (d->selstart < d->selend || (d->cursorVisible && d->maskData && !d->readOnly)) {
-        QTextLayout::FormatRange o;
-        if (d->selstart < d->selend) {
-            o.start = d->selstart;
-            o.length = d->selend - d->selstart;
-            o.format.setBackground(pal.brush(QPalette::Highlight));
-            o.format.setForeground(pal.brush(QPalette::HighlightedText));
-        } else {
-            // mask selection
-            o.start = d->cursor;
-            o.length = 1;
-            o.format.setBackground(pal.brush(QPalette::Text));
-            o.format.setForeground(pal.brush(QPalette::Window));
-        }
-        selections.append(o);
-    }
+    if (d->control->hasSelectedText() || (d->cursorVisible && !d->control->inputMask().isEmpty() && !d->control->isReadOnly()))
+        flags |= QLineControl::DrawSelections;
 
     // Asian users see an IM selection text as cursor on candidate
     // selection phase of input method, so the ordinary cursor should be
     // invisible if we have a preedit string.
-    d->textLayout.draw(&p, topLeft, selections, r);
-    if (d->cursorVisible && !d->readOnly && !d->hideCursor)
-        d->textLayout.drawCursor(&p, topLeft, cursor, style()->pixelMetric(QStyle::PM_TextCursorWidth));
+    if (d->cursorVisible && !d->control->isReadOnly())
+        flags |= QLineControl::DrawCursor;
+
+    d->control->setCursorWidth(style()->pixelMetric(QStyle::PM_TextCursorWidth));
+    d->control->draw(&p, topLeft, r, flags);
+
 }
 
 
@@ -2556,12 +1853,11 @@ void QLineEdit::paintEvent(QPaintEvent *)
 void QLineEdit::dragMoveEvent(QDragMoveEvent *e)
 {
     Q_D(QLineEdit);
-    if (!d->readOnly && e->mimeData()->hasFormat(QLatin1String("text/plain"))) {
+    if (!d->control->isReadOnly() && e->mimeData()->hasFormat(QLatin1String("text/plain"))) {
         e->acceptProposedAction();
-        d->cursor = d->xToPos(e->pos().x());
+        d->control->moveCursor(d->xToPos(e->pos().x()), false);
         d->cursorVisible = true;
         update();
-        d->emitCursorPositionChanged();
     }
 }
 
@@ -2587,13 +1883,14 @@ void QLineEdit::dropEvent(QDropEvent* e)
     Q_D(QLineEdit);
     QString str = e->mimeData()->text();
 
-    if (!str.isNull() && !d->readOnly) {
+    if (!str.isNull() && !d->control->isReadOnly()) {
         if (e->source() == this && e->dropAction() == Qt::CopyAction)
             deselect();
-        d->cursor =d->xToPos(e->pos().x());
-        int selStart = d->cursor;
-        int oldSelStart = d->selstart;
-        int oldSelEnd = d->selend;
+        int cursorPos = d->xToPos(e->pos().x());
+        int selStart = cursorPos;
+        int oldSelStart = d->control->selectionStart();
+        int oldSelEnd = d->control->selectionEnd();
+        d->control->moveCursor(cursorPos, false);
         d->cursorVisible = false;
         e->acceptProposedAction();
         insert(str);
@@ -2615,22 +1912,6 @@ void QLineEdit::dropEvent(QDropEvent* e)
     }
 }
 
-void QLineEditPrivate::drag()
-{
-    Q_Q(QLineEdit);
-    dndTimer.stop();
-    QMimeData *data = new QMimeData;
-    data->setText(q->selectedText());
-    QDrag *drag = new QDrag(q);
-    drag->setMimeData(data);
-    Qt::DropAction action = drag->start();
-    if (action == Qt::MoveAction && !readOnly && drag->target() != q) {
-        int priorState = undoState;
-        removeSelectedText();
-        finishChange(priorState);
-    }
-}
-
 #endif // QT_NO_DRAGANDDROP
 
 #ifndef QT_NO_CONTEXTMENU
@@ -2675,37 +1956,39 @@ QMenu *QLineEdit::createStandardContextMenu()
     popup->setObjectName(QLatin1String("qt_edit_menu"));
 
     QAction *action = popup->addAction(QLineEdit::tr("&Undo") + ACCEL_KEY(QKeySequence::Undo));
-    action->setEnabled(d->isUndoAvailable());
+    action->setEnabled(d->control->isUndoAvailable());
     connect(action, SIGNAL(triggered()), SLOT(undo()));
 
     action = popup->addAction(QLineEdit::tr("&Redo") + ACCEL_KEY(QKeySequence::Redo));
-    action->setEnabled(d->isRedoAvailable());
+    action->setEnabled(d->control->isRedoAvailable());
     connect(action, SIGNAL(triggered()), SLOT(redo()));
 
     popup->addSeparator();
 
 #ifndef QT_NO_CLIPBOARD
     action = popup->addAction(QLineEdit::tr("Cu&t") + ACCEL_KEY(QKeySequence::Cut));
-    action->setEnabled(!d->readOnly && d->hasSelectedText() && d->echoMode == QLineEdit::Normal);
+    action->setEnabled(!d->control->isReadOnly() && d->control->hasSelectedText()
+            && d->control->echoMode() == QLineEdit::Normal);
     connect(action, SIGNAL(triggered()), SLOT(cut()));
 
     action = popup->addAction(QLineEdit::tr("&Copy") + ACCEL_KEY(QKeySequence::Copy));
-    action->setEnabled(d->hasSelectedText() && d->echoMode == QLineEdit::Normal);
+    action->setEnabled(d->control->hasSelectedText()
+            && d->control->echoMode() == QLineEdit::Normal);
     connect(action, SIGNAL(triggered()), SLOT(copy()));
 
     action = popup->addAction(QLineEdit::tr("&Paste") + ACCEL_KEY(QKeySequence::Paste));
-    action->setEnabled(!d->readOnly && !QApplication::clipboard()->text().isEmpty());
+    action->setEnabled(!d->control->isReadOnly() && !QApplication::clipboard()->text().isEmpty());
     connect(action, SIGNAL(triggered()), SLOT(paste()));
 #endif
 
     action = popup->addAction(QLineEdit::tr("Delete"));
-    action->setEnabled(!d->readOnly && !d->text.isEmpty() && d->hasSelectedText());
+    action->setEnabled(!d->control->isReadOnly() && !d->control->text().isEmpty() && d->control->hasSelectedText());
     connect(action, SIGNAL(triggered()), SLOT(_q_deleteSelected()));
 
     popup->addSeparator();
 
     action = popup->addAction(QLineEdit::tr("Select All") + ACCEL_KEY(QKeySequence::SelectAll));
-    action->setEnabled(!d->text.isEmpty() && !d->allSelected());
+    action->setEnabled(!d->control->text().isEmpty() && !d->control->allSelected());
     d->selectAllAction = action;
     connect(action, SIGNAL(triggered()), SLOT(selectAll()));
 
@@ -2719,9 +2002,9 @@ QMenu *QLineEdit::createStandardContextMenu()
 #endif
 
 #if defined(Q_WS_WIN)
-    if (!d->readOnly && qt_use_rtl_extensions) {
+    if (!d->control->isReadOnly() && qt_use_rtl_extensions) {
 #else
-    if (!d->readOnly) {
+    if (!d->control->isReadOnly()) {
 #endif
         popup->addSeparator();
         QUnicodeControlCharacterMenu *ctrlCharacterMenu = new QUnicodeControlCharacterMenu(this, popup);
@@ -2735,806 +2018,26 @@ QMenu *QLineEdit::createStandardContextMenu()
 void QLineEdit::changeEvent(QEvent *ev)
 {
     Q_D(QLineEdit);
-    if(ev->type() == QEvent::ActivationChange) {
+    switch(ev->type())
+    {
+    case QEvent::ActivationChange:
         if (!palette().isEqual(QPalette::Active, QPalette::Inactive))
             update();
-    } else if (ev->type() == QEvent::FontChange
-               || ev->type() == QEvent::StyleChange
-               || ev->type() == QEvent::LayoutDirectionChange) {
-        d->updateTextLayout();
-    }
-    QWidget::changeEvent(ev);
-}
-
-void QLineEditPrivate::_q_handleWindowActivate()
-{
-    Q_Q(QLineEdit);
-    if (!q->hasFocus() && q->hasSelectedText())
-        q->deselect();
-}
-
-void QLineEditPrivate::_q_deleteSelected()
-{
-    Q_Q(QLineEdit);
-    if (!hasSelectedText())
-        return;
-
-    int priorState = undoState;
-    q->resetInputContext();
-    removeSelectedText();
-    separate();
-    finishChange(priorState);
-}
-
-void QLineEditPrivate::init(const QString& txt)
-{
-    Q_Q(QLineEdit);
-#ifndef QT_NO_CURSOR
-    q->setCursor(Qt::IBeamCursor);
-#endif
-    q->setFocusPolicy(Qt::StrongFocus);
-    q->setAttribute(Qt::WA_InputMethodEnabled);
-    //   Specifies that this widget can use more, but is able to survive on
-    //   less, horizontal space; and is fixed vertically.
-    q->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed, QSizePolicy::LineEdit));
-    q->setBackgroundRole(QPalette::Base);
-    q->setAttribute(Qt::WA_KeyCompression);
-    q->setMouseTracking(true);
-    q->setAcceptDrops(true);
-    text = txt;
-    updateTextLayout();
-    cursor = text.length();
-
-    q->setAttribute(Qt::WA_MacShowFocusRect);
-}
-
-void QLineEditPrivate::updatePasswordEchoEditing(bool editing)
-{
-    Q_Q(QLineEdit);
-    passwordEchoEditing = editing;
-    q->setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod(q));
-    updateTextLayout();
-    q->update();
-}
-
-void QLineEditPrivate::updateTextLayout()
-{
-    // replace certain non-printable characters with spaces (to avoid
-    // drawing boxes when using fonts that don't have glyphs for such
-    // characters)
-    Q_Q(QLineEdit);
-    QString str = q->displayText();
-    QChar* uc = str.data();
-    for (int i = 0; i < (int)str.length(); ++i) {
-        if ((uc[i] < 0x20 && uc[i] != 0x09)
-            || uc[i] == QChar::LineSeparator
-            || uc[i] == QChar::ParagraphSeparator
-            || uc[i] == QChar::ObjectReplacementCharacter)
-            uc[i] = QChar(0x0020);
-    }
-    textLayout.setFont(q->font());
-    textLayout.setText(str);
-    QTextOption option;
-    option.setTextDirection(q->layoutDirection());
-    option.setFlags(QTextOption::IncludeTrailingSpaces);
-    textLayout.setTextOption(option);
-
-    textLayout.beginLayout();
-    QTextLine l = textLayout.createLine();
-    textLayout.endLayout();
-    ascent = qRound(l.ascent());
-}
-
-int QLineEditPrivate::xToPos(int x, QTextLine::CursorPosition betweenOrOn) const
-{
-    QRect cr = adjustedContentsRect();
-    x-= cr.x() - hscroll + horizontalMargin;
-    QTextLine l = textLayout.lineAt(0);
-    return l.xToCursor(x, betweenOrOn);
-}
-
-QRect QLineEditPrivate::cursorRect() const
-{
-    Q_Q(const QLineEdit);
-    QRect cr = adjustedContentsRect();
-    int cix = cr.x() - hscroll + horizontalMargin;
-    QTextLine l = textLayout.lineAt(0);
-    int c = cursor;
-    if (preeditCursor != -1)
-        c += preeditCursor;
-    cix += qRound(l.cursorToX(c));
-    int ch = qMin(cr.height(), q->fontMetrics().height() + 1);
-    int w = q->style()->pixelMetric(QStyle::PM_TextCursorWidth);
-    return QRect(cix-5, vscroll, w + 9, ch);
-}
-
-QRect QLineEditPrivate::adjustedContentsRect() const
-{
-    Q_Q(const QLineEdit);
-    QStyleOptionFrameV2 opt;
-    q->initStyleOption(&opt);
-    QRect r = q->style()->subElementRect(QStyle::SE_LineEditContents, &opt, q);
-    r.setX(r.x() + leftTextMargin);
-    r.setY(r.y() + topTextMargin);
-    r.setRight(r.right() - rightTextMargin);
-    r.setBottom(r.bottom() - bottomTextMargin);
-    return r;
-}
-
-bool QLineEditPrivate::fixup() // this function assumes that validate currently returns != Acceptable
-{
-#ifndef QT_NO_VALIDATOR
-    if (validator) {
-        QString textCopy = text;
-        int cursorCopy = cursor;
-        validator->fixup(textCopy);
-        if (validator->validate(textCopy, cursorCopy) == QValidator::Acceptable) {
-            if (textCopy != text || cursorCopy != cursor)
-                setText(textCopy, cursorCopy);
-            return true;
-        }
-    }
-#endif
-    return false;
-}
-
-void QLineEditPrivate::moveCursor(int pos, bool mark)
-{
-    Q_Q(QLineEdit);
-    if (pos != cursor) {
-        separate();
-        if (maskData)
-            pos = pos > cursor ? nextMaskBlank(pos) : prevMaskBlank(pos);
-    }
-    bool fullUpdate = mark || hasSelectedText();
-    if (mark) {
-        int anchor;
-        if (selend > selstart && cursor == selstart)
-            anchor = selend;
-        else if (selend > selstart && cursor == selend)
-            anchor = selstart;
-        else
-            anchor = cursor;
-        selstart = qMin(anchor, pos);
-        selend = qMax(anchor, pos);
-        updateTextLayout();
-    } else {
-        deselect();
-    }
-    if (fullUpdate) {
-        cursor = pos;
-        q->update();
-    } else {
-        setCursorVisible(false);
-        cursor = pos;
-        setCursorVisible(true);
-        if (!adjustedContentsRect().contains(cursorRect()))
-            q->update();
-    }
-    QStyleOptionFrameV2 opt;
-    q->initStyleOption(&opt);
-    if (mark && !q->style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, q))
-        setCursorVisible(false);
-    if (mark || selDirty) {
-        selDirty = false;
-        emit q->selectionChanged();
-    }
-    emitCursorPositionChanged();
-}
-
-void QLineEditPrivate::finishChange(int validateFromState, bool update, bool edited)
-{
-    Q_Q(QLineEdit);
-    bool lineDirty = selDirty;
-    if (textDirty) {
-        // do validation
-        bool wasValidInput = validInput;
-        validInput = true;
-#ifndef QT_NO_VALIDATOR
-        if (validator) {
-            validInput = false;
-            QString textCopy = text;
-            int cursorCopy = cursor;
-            validInput = (validator->validate(textCopy, cursorCopy) != QValidator::Invalid);
-            if (validInput) {
-                if (text != textCopy) {
-                    setText(textCopy, cursorCopy);
-                    return;
-                }
-                cursor = cursorCopy;
-            }
-        }
-#endif
-        if (validateFromState >= 0 && wasValidInput && !validInput) {
-            undo(validateFromState);
-            history.resize(undoState);
-            if (modifiedState > undoState)
-                modifiedState = -1;
-            validInput = true;
-            textDirty = false;
-        }
-        updateTextLayout();
-        lineDirty |= textDirty;
-        if (textDirty) {
-            textDirty = false;
-            QString actualText = maskData ? stripString(text) : text;
-            if (edited)
-                emit q->textEdited(actualText);
-            q->updateMicroFocus();
-#ifndef QT_NO_COMPLETER
-            if (edited && completer && completer->completionMode() != QCompleter::InlineCompletion)
-                complete(-1); // update the popup on cut/paste/del
-#endif
-            emit q->textChanged(actualText);
-        }
-#ifndef QT_NO_ACCESSIBILITY
-        QAccessible::updateAccessibility(q, 0, QAccessible::ValueChanged);
-#endif
-    }
-    if (selDirty) {
-        selDirty = false;
-        emit q->selectionChanged();
-    }
-    if (lineDirty || update)
-        q->update();
-    emitCursorPositionChanged();
-}
-
-void QLineEditPrivate::emitCursorPositionChanged()
-{
-    Q_Q(QLineEdit);
-    if (cursor != lastCursorPos) {
-        const int oldLast = lastCursorPos;
-        lastCursorPos = cursor;
-        emit q->cursorPositionChanged(oldLast, cursor);
-    }
-}
-
-void QLineEditPrivate::setText(const QString& txt, int pos, bool edited)
-{
-    Q_Q(QLineEdit);
-    q->resetInputContext();
-    deselect();
-    QString oldText = text;
-    if (maskData) {
-        text = maskString(0, txt, true);
-        text += clearString(text.length(), maxLength - text.length());
-    } else {
-        text = txt.isEmpty() ? txt : txt.left(maxLength);
-    }
-    history.clear();
-    modifiedState =  undoState = 0;
-    cursor = (pos < 0 || pos > text.length()) ? text.length() : pos;
-    textDirty = (oldText != text);
-    finishChange(-1, true, edited);
-}
-
-
-void QLineEditPrivate::setCursorVisible(bool visible)
-{
-    Q_Q(QLineEdit);
-    if ((bool)cursorVisible == visible)
-        return;
-    if (cursorTimer)
-        cursorVisible = visible;
-    QRect r = cursorRect();
-    if (maskData)
-        q->update();
-    else
-        q->update(r);
-}
-
-void QLineEditPrivate::addCommand(const Command& cmd)
-{
-    if (separator && undoState && history[undoState-1].type != Separator) {
-        history.resize(undoState + 2);
-        history[undoState++] = Command(Separator, cursor, 0, selstart, selend);
-    } else {
-        history.resize(undoState + 1);
-    }
-    separator = false;
-    history[undoState++] = cmd;
-}
-
-void QLineEditPrivate::insert(const QString& s)
-{
-    if (hasSelectedText())
-        addCommand(Command(SetSelection, cursor, 0, selstart, selend));
-    if (maskData) {
-        QString ms = maskString(cursor, s);
-        for (int i = 0; i < (int) ms.length(); ++i) {
-            addCommand (Command(DeleteSelection, cursor+i, text.at(cursor+i), -1, -1));
-            addCommand(Command(Insert, cursor+i, ms.at(i), -1, -1));
-        }
-        text.replace(cursor, ms.length(), ms);
-        cursor += ms.length();
-        cursor = nextMaskBlank(cursor);
-        textDirty = true;
-    } else {
-        int remaining = maxLength - text.length();
-        if (remaining != 0) {
-            text.insert(cursor, s.left(remaining));
-            for (int i = 0; i < (int) s.left(remaining).length(); ++i)
-               addCommand(Command(Insert, cursor++, s.at(i), -1, -1));
-            textDirty = true;
-        }
-    }
-}
-
-void QLineEditPrivate::del(bool wasBackspace)
-{
-    if (cursor < (int) text.length()) {
-        if (hasSelectedText())
-            addCommand(Command(SetSelection, cursor, 0, selstart, selend));
-        addCommand (Command((CommandType)((maskData?2:0)+(wasBackspace?Remove:Delete)), cursor, text.at(cursor), -1, -1));
-        if (maskData) {
-            text.replace(cursor, 1, clearString(cursor, 1));
-            addCommand(Command(Insert, cursor, text.at(cursor), -1, -1));
-        } else {
-            text.remove(cursor, 1);
-        }
-        textDirty = true;
-    }
-}
-
-void QLineEditPrivate::removeSelectedText()
-{
-    if (selstart < selend && selend <= (int) text.length()) {
-        separate();
-        int i ;
-        addCommand(Command(SetSelection, cursor, 0, selstart, selend));
-        if (selstart <= cursor && cursor < selend) {
-            // cursor is within the selection. Split up the commands
-            // to be able to restore the correct cursor position
-            for (i = cursor; i >= selstart; --i)
-                addCommand (Command(DeleteSelection, i, text.at(i), -1, 1));
-            for (i = selend - 1; i > cursor; --i)
-                addCommand (Command(DeleteSelection, i - cursor + selstart - 1, text.at(i), -1, -1));
-        } else {
-            for (i = selend-1; i >= selstart; --i)
-                addCommand (Command(RemoveSelection, i, text.at(i), -1, -1));
-        }
-        if (maskData) {
-            text.replace(selstart, selend - selstart,  clearString(selstart, selend - selstart));
-            for (int i = 0; i < selend - selstart; ++i)
-                addCommand(Command(Insert, selstart + i, text.at(selstart + i), -1, -1));
-        } else {
-            text.remove(selstart, selend - selstart);
-        }
-        if (cursor > selstart)
-            cursor -= qMin(cursor, selend) - selstart;
-        deselect();
-        textDirty = true;
-
-        // adjust hscroll to avoid gap
-        const int minRB = qMax(0, -q_func()->fontMetrics().minRightBearing());
-        updateTextLayout();
-        const QTextLine line = textLayout.lineAt(0);
-        const int widthUsed = qRound(line.naturalTextWidth()) + 1 + minRB;
-        hscroll = qMin(hscroll, widthUsed);
-    }
-}
-
-void QLineEditPrivate::parseInputMask(const QString &maskFields)
-{
-    int delimiter = maskFields.indexOf(QLatin1Char(';'));
-    if (maskFields.isEmpty() || delimiter == 0) {
-        if (maskData) {
-            delete [] maskData;
-            maskData = 0;
-            maxLength = 32767;
-            setText(QString());
-        }
-        return;
-    }
-
-    if (delimiter == -1) {
-        blank = QLatin1Char(' ');
-        inputMask = maskFields;
-    } else {
-        inputMask = maskFields.left(delimiter);
-        blank = (delimiter + 1 < maskFields.length()) ? maskFields[delimiter + 1] : QLatin1Char(' ');
-    }
-
-    // calculate maxLength / maskData length
-    maxLength = 0;
-    QChar c = 0;
-    for (int i=0; i<inputMask.length(); i++) {
-        c = inputMask.at(i);
-        if (i > 0 && inputMask.at(i-1) == QLatin1Char('\\')) {
-            maxLength++;
-            continue;
-        }
-        if (c != QLatin1Char('\\') && c != QLatin1Char('!') &&
-             c != QLatin1Char('<') && c != QLatin1Char('>') &&
-             c != QLatin1Char('{') && c != QLatin1Char('}') &&
-             c != QLatin1Char('[') && c != QLatin1Char(']'))
-            maxLength++;
-    }
-
-    delete [] maskData;
-    maskData = new MaskInputData[maxLength];
-
-    MaskInputData::Casemode m = MaskInputData::NoCaseMode;
-    c = 0;
-    bool s;
-    bool escape = false;
-    int index = 0;
-    for (int i = 0; i < inputMask.length(); i++) {
-        c = inputMask.at(i);
-        if (escape) {
-            s = true;
-            maskData[index].maskChar = c;
-            maskData[index].separator = s;
-            maskData[index].caseMode = m;
-            index++;
-            escape = false;
-        } else if (c == QLatin1Char('<')) {
-                m = MaskInputData::Lower;
-        } else if (c == QLatin1Char('>')) {
-            m = MaskInputData::Upper;
-        } else if (c == QLatin1Char('!')) {
-            m = MaskInputData::NoCaseMode;
-        } else if (c != QLatin1Char('{') && c != QLatin1Char('}') && c != QLatin1Char('[') && c != QLatin1Char(']')) {
-            switch (c.unicode()) {
-            case 'A':
-            case 'a':
-            case 'N':
-            case 'n':
-            case 'X':
-            case 'x':
-            case '9':
-            case '0':
-            case 'D':
-            case 'd':
-            case '#':
-            case 'H':
-            case 'h':
-            case 'B':
-            case 'b':
-                s = false;
-                break;
-            case '\\':
-                escape = true;
-            default:
-                s = true;
-                break;
-            }
-
-            if (!escape) {
-                maskData[index].maskChar = c;
-                maskData[index].separator = s;
-                maskData[index].caseMode = m;
-                index++;
-            }
-        }
-    }
-    setText(text);
-}
-
-
-/* checks if the key is valid compared to the inputMask */
-bool QLineEditPrivate::isValidInput(QChar key, QChar mask) const
-{
-    switch (mask.unicode()) {
-    case 'A':
-        if (key.isLetter())
-            return true;
         break;
-    case 'a':
-        if (key.isLetter() || key == blank)
-            return true;
+    case QEvent::FontChange:
+        d->control->setFont(font());
         break;
-    case 'N':
-        if (key.isLetterOrNumber())
-            return true;
-        break;
-    case 'n':
-        if (key.isLetterOrNumber() || key == blank)
-            return true;
-        break;
-    case 'X':
-        if (key.isPrint())
-            return true;
-        break;
-    case 'x':
-        if (key.isPrint() || key == blank)
-            return true;
-        break;
-    case '9':
-        if (key.isNumber())
-            return true;
-        break;
-    case '0':
-        if (key.isNumber() || key == blank)
-            return true;
-        break;
-    case 'D':
-        if (key.isNumber() && key.digitValue() > 0)
-            return true;
-        break;
-    case 'd':
-        if ((key.isNumber() && key.digitValue() > 0) || key == blank)
-            return true;
-        break;
-    case '#':
-        if (key.isNumber() || key == QLatin1Char('+') || key == QLatin1Char('-') || key == blank)
-            return true;
-        break;
-    case 'B':
-        if (key == QLatin1Char('0') || key == QLatin1Char('1'))
-            return true;
-        break;
-    case 'b':
-        if (key == QLatin1Char('0') || key == QLatin1Char('1') || key == blank)
-            return true;
-        break;
-    case 'H':
-        if (key.isNumber() || (key >= QLatin1Char('a') && key <= QLatin1Char('f')) || (key >= QLatin1Char('A') && key <= QLatin1Char('F')))
-            return true;
+    case QEvent::StyleChange:
+        d->control->setPasswordCharacter(style()->styleHint(QStyle::SH_LineEdit_PasswordCharacter));
+        update();
         break;
-    case 'h':
-        if (key.isNumber() || (key >= QLatin1Char('a') && key <= QLatin1Char('f')) || (key >= QLatin1Char('A') && key <= QLatin1Char('F')) || key == blank)
-            return true;
+    case QEvent::LayoutDirectionChange:
+        d->control->setLayoutDirection(layoutDirection());
         break;
     default:
         break;
     }
-    return false;
-}
-
-bool QLineEditPrivate::hasAcceptableInput(const QString &str) const
-{
-#ifndef QT_NO_VALIDATOR
-    QString textCopy = str;
-    int cursorCopy = cursor;
-    if (validator && validator->validate(textCopy, cursorCopy)
-        != QValidator::Acceptable)
-        return false;
-#endif
-
-    if (!maskData)
-        return true;
-
-    if (str.length() != maxLength)
-        return false;
-
-    for (int i=0; i < maxLength; ++i) {
-        if (maskData[i].separator) {
-            if (str.at(i) != maskData[i].maskChar)
-                return false;
-        } else {
-            if (!isValidInput(str.at(i), maskData[i].maskChar))
-                return false;
-        }
-    }
-    return true;
-}
-
-/*
-  Applies the inputMask on \a str starting from position \a pos in the mask. \a clear
-  specifies from where characters should be gotten when a separator is met in \a str - true means
-  that blanks will be used, false that previous input is used.
-  Calling this when no inputMask is set is undefined.
-*/
-QString QLineEditPrivate::maskString(uint pos, const QString &str, bool clear) const
-{
-    if (pos >= (uint)maxLength)
-        return QString::fromLatin1("");
-
-    QString fill;
-    fill = clear ? clearString(0, maxLength) : text;
-
-    int strIndex = 0;
-    QString s = QString::fromLatin1("");
-    int i = pos;
-    while (i < maxLength) {
-        if (strIndex < str.length()) {
-            if (maskData[i].separator) {
-                s += maskData[i].maskChar;
-                if (str[(int)strIndex] == maskData[i].maskChar)
-                    strIndex++;
-                ++i;
-            } else {
-                if (isValidInput(str[(int)strIndex], maskData[i].maskChar)) {
-                    switch (maskData[i].caseMode) {
-                    case MaskInputData::Upper:
-                        s += str[(int)strIndex].toUpper();
-                        break;
-                    case MaskInputData::Lower:
-                        s += str[(int)strIndex].toLower();
-                        break;
-                    default:
-                        s += str[(int)strIndex];
-                    }
-                    ++i;
-                } else {
-                    // search for separator first
-                    int n = findInMask(i, true, true, str[(int)strIndex]);
-                    if (n != -1) {
-                        if (str.length() != 1 || i == 0 || (i > 0 && (!maskData[i-1].separator || maskData[i-1].maskChar != str[(int)strIndex]))) {
-                            s += fill.mid(i, n-i+1);
-                            i = n + 1; // update i to find + 1
-                        }
-                    } else {
-                        // search for valid blank if not
-                        n = findInMask(i, true, false, str[(int)strIndex]);
-                        if (n != -1) {
-                            s += fill.mid(i, n-i);
-                            switch (maskData[n].caseMode) {
-                            case MaskInputData::Upper:
-                                s += str[(int)strIndex].toUpper();
-                                break;
-                            case MaskInputData::Lower:
-                                s += str[(int)strIndex].toLower();
-                                break;
-                            default:
-                                s += str[(int)strIndex];
-                            }
-                            i = n + 1; // updates i to find + 1
-                        }
-                    }
-                }
-                strIndex++;
-            }
-        } else
-            break;
-    }
-
-    return s;
-}
-
-
-
-/*
-  Returns a "cleared" string with only separators and blank chars.
-  Calling this when no inputMask is set is undefined.
-*/
-QString QLineEditPrivate::clearString(uint pos, uint len) const
-{
-    if (pos >= (uint)maxLength)
-        return QString();
-
-    QString s;
-    int end = qMin((uint)maxLength, pos + len);
-    for (int i=pos; i<end; i++)
-        if (maskData[i].separator)
-            s += maskData[i].maskChar;
-        else
-            s += blank;
-
-    return s;
-}
-
-/*
-  Strips blank parts of the input in a QLineEdit when an inputMask is set,
-  separators are still included. Typically "127.0__.0__.1__" becomes "127.0.0.1".
-*/
-QString QLineEditPrivate::stripString(const QString &str) const
-{
-    if (!maskData)
-        return str;
-
-    QString s;
-    int end = qMin(maxLength, (int)str.length());
-    for (int i=0; i < end; i++)
-        if (maskData[i].separator)
-            s += maskData[i].maskChar;
-        else
-            if (str[i] != blank)
-                s += str[i];
-
-    return s;
-}
-
-/* searches forward/backward in maskData for either a separator or a blank */
-int QLineEditPrivate::findInMask(int pos, bool forward, bool findSeparator, QChar searchChar) const
-{
-    if (pos >= maxLength || pos < 0)
-        return -1;
-
-    int end = forward ? maxLength : -1;
-    int step = forward ? 1 : -1;
-    int i = pos;
-
-    while (i != end) {
-        if (findSeparator) {
-            if (maskData[i].separator && maskData[i].maskChar == searchChar)
-                return i;
-        } else {
-            if (!maskData[i].separator) {
-                if (searchChar.isNull())
-                    return i;
-                else if (isValidInput(searchChar, maskData[i].maskChar))
-                    return i;
-            }
-        }
-        i += step;
-    }
-    return -1;
-}
-
-void QLineEditPrivate::undo(int until)
-{
-    if (!isUndoAvailable())
-        return;
-    deselect();
-    while (undoState && undoState > until) {
-        Command& cmd = history[--undoState];
-        switch (cmd.type) {
-        case Insert:
-            text.remove(cmd.pos, 1);
-            cursor = cmd.pos;
-            break;
-        case SetSelection:
-            selstart = cmd.selStart;
-            selend = cmd.selEnd;
-            cursor = cmd.pos;
-            break;
-        case Remove:
-        case RemoveSelection:
-            text.insert(cmd.pos, cmd.uc);
-            cursor = cmd.pos + 1;
-            break;
-        case Delete:
-        case DeleteSelection:
-            text.insert(cmd.pos, cmd.uc);
-            cursor = cmd.pos;
-            break;
-        case Separator:
-            continue;
-        }
-        if (until < 0 && undoState) {
-            Command& next = history[undoState-1];
-            if (next.type != cmd.type && next.type < RemoveSelection
-                 && (cmd.type < RemoveSelection || next.type == Separator))
-                break;
-        }
-    }
-    textDirty = true;
-    emitCursorPositionChanged();
-}
-
-void QLineEditPrivate::redo() {
-    if (!isRedoAvailable())
-        return;
-    deselect();
-    while (undoState < (int)history.size()) {
-        Command& cmd = history[undoState++];
-        switch (cmd.type) {
-        case Insert:
-            text.insert(cmd.pos, cmd.uc);
-            cursor = cmd.pos + 1;
-            break;
-        case SetSelection:
-            selstart = cmd.selStart;
-            selend = cmd.selEnd;
-            cursor = cmd.pos;
-            break;
-        case Remove:
-        case Delete:
-        case RemoveSelection:
-        case DeleteSelection:
-            text.remove(cmd.pos, 1);
-            selstart = cmd.selStart;
-            selend = cmd.selEnd;
-            cursor = cmd.pos;
-            break;
-        case Separator:
-            selstart = cmd.selStart;
-            selend = cmd.selEnd;
-            cursor = cmd.pos;
-            break;
-        }
-        if (undoState < (int)history.size()) {
-            Command& next = history[undoState];
-            if (next.type != cmd.type && cmd.type < RemoveSelection && next.type != Separator
-                 && (next.type < RemoveSelection || cmd.type == Separator))
-                break;
-        }
-    }
-    textDirty = true;
-    emitCursorPositionChanged();
+    QWidget::changeEvent(ev);
 }
 
 /*!
-- 
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