Long live Qt 4.5!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlineedit.h"
+#include "qlineedit_p.h"
+
+#ifndef QT_NO_LINEEDIT
+#include "qaction.h"
+#include "qapplication.h"
+#include "qclipboard.h"
+#include "qdrag.h"
+#include "qdrawutil.h"
+#include "qevent.h"
+#include "qfontmetrics.h"
+#include "qmenu.h"
+#include "qpainter.h"
+#include "qpixmap.h"
+#include "qpointer.h"
+#include "qstringlist.h"
+#include "qstyle.h"
+#include "qstyleoption.h"
+#include "qtimer.h"
+#include "qvalidator.h"
+#include "qvariant.h"
+#include "qvector.h"
+#include "qwhatsthis.h"
+#include "qdebug.h"
+#include "qtextedit.h"
+#include <private/qtextedit_p.h>
+#ifndef QT_NO_ACCESSIBILITY
+#include "qaccessible.h"
+#endif
+#ifndef QT_NO_IM
+#include "qinputcontext.h"
+#include "qlist.h"
+#endif
+#include "qabstractitemview.h"
+#include "private/qstylesheetstyle_p.h"
+
+#ifndef QT_NO_SHORTCUT
+#include "private/qapplication_p.h"
+#include "private/qshortcutmap_p.h"
+#include "qkeysequence.h"
+#define ACCEL_KEY(k) (!qApp->d_func()->shortcutMap.hasShortcutForKeySequence(k) ? QLatin1String("\t") + QString(QKeySequence(k)) : QString())
+#else
+#define ACCEL_KEY(k) QString()
+#endif
+
+#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
+    to fill in all the information themselves. This function will check the version
+    of the QStyleOptionFrame and fill in the additional values for a
+    QStyleOptionFrameV2.
+
+    \sa QStyleOption::initFrom()
+*/
+void QLineEdit::initStyleOption(QStyleOptionFrame *option) const
+{
+    if (!option)
+        return;
+
+    Q_D(const QLineEdit);
+    option->initFrom(this);
+    option->rect = contentsRect();
+    option->lineWidth = d->frame ? style()->pixelMetric(QStyle::PM_DefaultFrameWidth, option, this)
+                                 : 0;
+    option->midLineWidth = 0;
+    option->state |= QStyle::State_Sunken;
+    if (d->readOnly)
+        option->state |= QStyle::State_ReadOnly;
+#ifdef QT_KEYPAD_NAVIGATION
+    if (hasEditFocus())
+        option->state |= QStyle::State_HasEditFocus;
+#endif
+    if (QStyleOptionFrameV2 *optionV2 = qstyleoption_cast<QStyleOptionFrameV2 *>(option))
+        optionV2->features = QStyleOptionFrameV2::None;
+}
+
+/*!
+    \class QLineEdit
+    \brief The QLineEdit widget is a one-line text editor.
+
+    \ingroup basicwidgets
+    \mainclass
+
+    A line edit allows the user to enter and edit a single line of
+    plain text with a useful collection of editing functions,
+    including undo and redo, cut and paste, and drag and drop.
+
+    By changing the echoMode() of a line edit, it can also be used as
+    a "write-only" field, for inputs such as passwords.
+
+    The length of the text can be constrained to maxLength(). The text
+    can be arbitrarily constrained using a validator() or an
+    inputMask(), or both.
+
+    A related class is QTextEdit which allows multi-line, rich text
+    editing.
+
+    You can change the text with setText() or insert(). The text is
+    retrieved with text(); the displayed text (which may be different,
+    see \l{EchoMode}) is retrieved with displayText(). Text can be
+    selected with setSelection() or selectAll(), and the selection can
+    be cut(), copy()ied and paste()d. The text can be aligned with
+    setAlignment().
+
+    When the text changes the textChanged() signal is emitted; when
+    the text changes other than by calling setText() the textEdited()
+    signal is emitted; when the cursor is moved the
+    cursorPositionChanged() signal is emitted; and when the Return or
+    Enter key is pressed the returnPressed() signal is emitted.
+
+    When editing is finished, either because the line edit lost focus
+    or Return/Enter is pressed the editingFinished() signal is
+    emitted.
+
+    Note that if there is a validator set on the line edit, the
+    returnPressed()/editingFinished() signals will only be emitted if
+    the validator returns QValidator::Acceptable.
+
+    By default, QLineEdits have a frame as specified by the Windows
+    and Motif style guides; you can turn it off by calling
+    setFrame(false).
+
+    The default key bindings are described below. The line edit also
+    provides a context menu (usually invoked by a right mouse click)
+    that presents some of these editing options.
+    \target desc
+    \table
+    \header \i Keypress \i Action
+    \row \i Left Arrow \i Moves the cursor one character to the left.
+    \row \i Shift+Left Arrow \i Moves and selects text one character to the left.
+    \row \i Right Arrow \i Moves the cursor one character to the right.
+    \row \i Shift+Right Arrow \i Moves and selects text one character to the right.
+    \row \i Home \i Moves the cursor to the beginning of the line.
+    \row \i End \i Moves the cursor to the end of the line.
+    \row \i Backspace \i Deletes the character to the left of the cursor.
+    \row \i Ctrl+Backspace \i Deletes the word to the left of the cursor.
+    \row \i Delete \i Deletes the character to the right of the cursor.
+    \row \i Ctrl+Delete \i Deletes the word to the right of the cursor.
+    \row \i Ctrl+A \i Select all.
+    \row \i Ctrl+C \i Copies the selected text to the clipboard.
+    \row \i Ctrl+Insert \i Copies the selected text to the clipboard.
+    \row \i Ctrl+K \i Deletes to the end of the line.
+    \row \i Ctrl+V \i Pastes the clipboard text into line edit.
+    \row \i Shift+Insert \i Pastes the clipboard text into line edit.
+    \row \i Ctrl+X \i Deletes the selected text and copies it to the clipboard.
+    \row \i Shift+Delete \i Deletes the selected text and copies it to the clipboard.
+    \row \i Ctrl+Z \i Undoes the last operation.
+    \row \i Ctrl+Y \i Redoes the last undone operation.
+    \endtable
+
+    Any other key sequence that represents a valid character, will
+    cause the character to be inserted into the line edit.
+
+    \table 100%
+    \row \o \inlineimage macintosh-lineedit.png Screenshot of a Macintosh style line edit
+         \o A line edit shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}.
+    \row \o \inlineimage windows-lineedit.png Screenshot of a Windows XP style line edit
+         \o A line edit shown in the \l{Windows XP Style Widget Gallery}{Windows XP widget style}.
+    \row \o \inlineimage plastique-lineedit.png Screenshot of a Plastique style line edit
+         \o A line edit shown in the \l{Plastique Style Widget Gallery}{Plastique widget style}.
+    \endtable
+
+    \sa QTextEdit, QLabel, QComboBox, {fowler}{GUI Design Handbook: Field, Entry}, {Line Edits Example}
+*/
+
+
+/*!
+    \fn void QLineEdit::textChanged(const QString &text)
+
+    This signal is emitted whenever the text changes. The \a text
+    argument is the new text.
+
+    Unlike textEdited(), this signal is also emitted when the text is
+    changed programmatically, for example, by calling setText().
+*/
+
+/*!
+    \fn void QLineEdit::textEdited(const QString &text)
+
+    This signal is emitted whenever the text is edited. The \a text
+    argument is the next text.
+
+    Unlike textChanged(), this signal is not emitted when the text is
+    changed programmatically, for example, by calling setText().
+*/
+
+/*!
+    \fn void QLineEdit::cursorPositionChanged(int old, int new)
+
+    This signal is emitted whenever the cursor moves. The previous
+    position is given by \a old, and the new position by \a new.
+
+    \sa setCursorPosition(), cursorPosition()
+*/
+
+/*!
+    \fn void QLineEdit::selectionChanged()
+
+    This signal is emitted whenever the selection changes.
+
+    \sa hasSelectedText(), selectedText()
+*/
+
+/*!
+    Constructs a line edit with no text.
+
+    The maximum text length is set to 32767 characters.
+
+    The \a parent argument is sent to the QWidget constructor.
+
+    \sa setText(), setMaxLength()
+*/
+QLineEdit::QLineEdit(QWidget* parent)
+    : QWidget(*new QLineEditPrivate, parent,0)
+{
+    Q_D(QLineEdit);
+    d->init(QString());
+}
+
+/*!
+    Constructs a line edit containing the text \a contents.
+
+    The cursor position is set to the end of the line and the maximum
+    text length to 32767 characters.
+
+    The \a parent and argument is sent to the QWidget
+    constructor.
+
+    \sa text(), setMaxLength()
+*/
+QLineEdit::QLineEdit(const QString& contents, QWidget* parent)
+    : QWidget(*new QLineEditPrivate, parent, 0)
+{
+    Q_D(QLineEdit);
+    d->init(contents);
+}
+
+
+#ifdef QT3_SUPPORT
+/*!
+    Constructs a line edit with no text.
+
+    The maximum text length is set to 32767 characters.
+
+    The \a parent and \a name arguments are sent to the QWidget constructor.
+
+    \sa setText(), setMaxLength()
+*/
+QLineEdit::QLineEdit(QWidget* parent, const char* name)
+    : QWidget(*new QLineEditPrivate, parent,0)
+{
+    Q_D(QLineEdit);
+    setObjectName(QString::fromAscii(name));
+    d->init(QString());
+}
+
+/*!
+    Constructs a line edit containing the text \a contents.
+
+    The cursor position is set to the end of the line and the maximum
+    text length to 32767 characters.
+
+    The \a parent and \a name arguments are sent to the QWidget
+    constructor.
+
+    \sa text(), setMaxLength()
+*/
+
+QLineEdit::QLineEdit(const QString& contents, QWidget* parent, const char* name)
+    : QWidget(*new QLineEditPrivate, parent, 0)
+{
+    Q_D(QLineEdit);
+    setObjectName(QString::fromAscii(name));
+    d->init(contents);
+}
+
+/*!
+    Constructs a line edit with an input \a inputMask and the text \a
+    contents.
+
+    The cursor position is set to the end of the line and the maximum
+    text length is set to the length of the mask (the number of mask
+    characters and separators).
+
+    The \a parent and \a name arguments are sent to the QWidget
+    constructor.
+
+    \sa setMask() text()
+*/
+QLineEdit::QLineEdit(const QString& contents, const QString &inputMask, QWidget* parent, const char* name)
+    : QWidget(*new QLineEditPrivate, parent, 0)
+{
+    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);
+    }
+}
+#endif
+
+/*!
+    Destroys the line edit.
+*/
+
+QLineEdit::~QLineEdit()
+{
+}
+
+
+/*!
+    \property QLineEdit::text
+    \brief the line edit's text
+
+    Setting this property clears the selection, clears the undo/redo
+    history, moves the cursor to the end of the line and resets the
+    \l modified property to false. The text is not validated when
+    inserted with setText().
+
+    The text is truncated to maxLength() length.
+
+    By default, this property contains an empty string.
+
+    \sa insert(), clear()
+*/
+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);
+}
+
+void QLineEdit::setText(const QString& text)
+{
+    Q_D(QLineEdit);
+    d->setText(text, -1, false);
+#ifdef QT_KEYPAD_NAVIGATION
+    d->origText = d->text;
+#endif
+}
+
+
+/*!
+    \property QLineEdit::displayText
+    \brief the displayed text
+
+    If \l echoMode is \l Normal this returns the same as text(); if
+    \l EchoMode is \l Password or \l PasswordEchoOnEdit it returns a string of asterisks
+    text().length() characters long, e.g. "******"; if \l EchoMode is
+    \l NoEcho returns an empty string, "".
+
+    By default, this property contains an empty string.
+
+    \sa setEchoMode() text() EchoMode
+*/
+
+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);
+}
+
+
+/*!
+    \property QLineEdit::maxLength
+    \brief the maximum permitted length of the text
+
+    If the text is too long, it is truncated at the limit.
+
+    If truncation occurs any selected text will be unselected, the
+    cursor position is set to 0 and the first part of the string is
+    shown.
+
+    If the line edit has an input mask, the mask defines the maximum
+    string length.
+
+    By default, this property contains a value of 32767.
+
+    \sa inputMask
+*/
+
+int QLineEdit::maxLength() const
+{
+    Q_D(const QLineEdit);
+    return d->maxLength;
+}
+
+void QLineEdit::setMaxLength(int maxLength)
+{
+    Q_D(QLineEdit);
+    if (d->maskData)
+        return;
+    d->maxLength = maxLength;
+    setText(d->text);
+}
+
+
+
+/*!
+    \property QLineEdit::frame
+    \brief whether the line edit draws itself with a frame
+
+    If enabled (the default) the line edit draws itself inside a
+    frame, otherwise the line edit draws itself without any frame.
+*/
+bool QLineEdit::hasFrame() const
+{
+    Q_D(const QLineEdit);
+    return d->frame;
+}
+
+
+void QLineEdit::setFrame(bool enable)
+{
+    Q_D(QLineEdit);
+    d->frame = enable;
+    update();
+    updateGeometry();
+}
+
+
+/*!
+    \enum QLineEdit::EchoMode
+
+    This enum type describes how a line edit should display its
+    contents.
+
+    \value Normal   Display characters as they are entered. This is the
+                    default.
+    \value NoEcho   Do not display anything. This may be appropriate
+                    for passwords where even the length of the
+                    password should be kept secret.
+    \value Password  Display asterisks instead of the characters
+                    actually entered.
+    \value PasswordEchoOnEdit Display characters as they are entered
+                    while editing otherwise display asterisks.
+
+    \sa setEchoMode() echoMode()
+*/
+
+
+/*!
+    \property QLineEdit::echoMode
+    \brief the line edit's echo mode
+
+    The echo mode determines how the text entered in the line edit is
+    displayed (or echoed) to the user.
+
+    The most common setting is \l Normal, in which the text entered by the
+    user is displayed verbatim, but QLineEdit also supports modes that allow
+    the entered text to be suppressed or obscured: these include \l NoEcho,
+    \l Password and \l PasswordEchoOnEdit.
+
+    The widget's display and the ability to copy or drag the text is
+    affected by this setting.
+
+    By default, this property is set to \l Normal.
+
+    \sa EchoMode displayText()
+*/
+
+QLineEdit::EchoMode QLineEdit::echoMode() const
+{
+    Q_D(const QLineEdit);
+    return (EchoMode) d->echoMode;
+}
+
+void QLineEdit::setEchoMode(EchoMode mode)
+{
+    Q_D(QLineEdit);
+    if (mode == (EchoMode)d->echoMode)
+        return;
+    setAttribute(Qt::WA_InputMethodEnabled, shouldEnableInputMethod(this));
+    d->echoMode = mode;
+    d->passwordEchoEditing = false;
+    d->updateTextLayout();
+    update();
+#ifdef Q_WS_MAC
+    if (hasFocus())
+        qt_mac_secure_keyboard(d->echoMode == Password || d->echoMode == NoEcho);
+#endif
+}
+
+
+#ifndef QT_NO_VALIDATOR
+/*!
+    Returns a pointer to the current input validator, or 0 if no
+    validator has been set.
+
+    \sa setValidator()
+*/
+
+const QValidator * QLineEdit::validator() const
+{
+    Q_D(const QLineEdit);
+    return d->validator;
+}
+
+/*!
+    Sets this line edit to only accept input that the validator, \a v,
+    will accept. This allows you to place any arbitrary constraints on
+    the text which may be entered.
+
+    If \a v == 0, setValidator() removes the current input validator.
+    The initial setting is to have no input validator (i.e. any input
+    is accepted up to maxLength()).
+
+    \sa validator() QIntValidator QDoubleValidator QRegExpValidator
+*/
+
+void QLineEdit::setValidator(const QValidator *v)
+{
+    Q_D(QLineEdit);
+    d->validator = const_cast<QValidator*>(v);
+}
+#endif // QT_NO_VALIDATOR
+
+#ifndef QT_NO_COMPLETER
+/*!
+    \since 4.2
+
+    Sets this line edit to provide auto completions from the completer, \a c.
+    The completion mode is set using QCompleter::setCompletionMode().
+
+    To use a QCompleter with a QValidator or QLineEdit::inputMask, you need to
+    ensure that the model provided to QCompleter contains valid entries. You can
+    use the QSortFilterProxyModel to ensure that the QCompleter's model contains
+    only valid entries.
+
+    If \a c == 0, setCompleter() removes the current completer, effectively
+    disabling auto completion.
+
+    \sa QCompleter
+*/
+void QLineEdit::setCompleter(QCompleter *c)
+{
+    Q_D(QLineEdit);
+    if (c == d->completer)
+        return;
+    if (d->completer) {
+        disconnect(d->completer, 0, this, 0);
+        d->completer->setWidget(0);
+        if (d->completer->parent() == this)
+            delete d->completer;
+    }
+    d->completer = c;
+    if (!c)
+        return;
+    if (c->widget() == 0)
+        c->setWidget(this);
+    if (hasFocus()) {
+        QObject::connect(d->completer, SIGNAL(activated(QString)),
+                         this, SLOT(setText(QString)));
+        QObject::connect(d->completer, SIGNAL(highlighted(QString)),
+                         this, SLOT(_q_completionHighlighted(QString)));
+    }
+}
+
+/*!
+    \since 4.2
+
+    Returns the current QCompleter that provides completions.
+*/
+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();
+}
+
+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
+
+/*!
+    Returns a recommended size for the widget.
+
+    The width returned, in pixels, is usually enough for about 15 to
+    20 characters.
+*/
+
+QSize QLineEdit::sizeHint() const
+{
+    Q_D(const QLineEdit);
+    ensurePolished();
+    QFontMetrics fm(font());
+    int h = qMax(fm.lineSpacing(), 14) + 2*verticalMargin
+            + d->topTextMargin + d->bottomTextMargin
+            + d->topmargin + d->bottommargin;
+    int w = fm.width(QLatin1Char('x')) * 17 + 2*horizontalMargin
+            + d->leftTextMargin + d->rightTextMargin
+            + d->leftmargin + d->rightmargin; // "some"
+    QStyleOptionFrameV2 opt;
+    initStyleOption(&opt);
+    return (style()->sizeFromContents(QStyle::CT_LineEdit, &opt, QSize(w, h).
+                                      expandedTo(QApplication::globalStrut()), this));
+}
+
+
+/*!
+    Returns a minimum size for the line edit.
+
+    The width returned is enough for at least one character.
+*/
+
+QSize QLineEdit::minimumSizeHint() const
+{
+    Q_D(const QLineEdit);
+    ensurePolished();
+    QFontMetrics fm = fontMetrics();
+    int h = fm.height() + qMax(2*verticalMargin, fm.leading())
+            + d->topmargin + d->bottommargin;
+    int w = fm.maxWidth() + d->leftmargin + d->rightmargin;
+    QStyleOptionFrameV2 opt;
+    initStyleOption(&opt);
+    return (style()->sizeFromContents(QStyle::CT_LineEdit, &opt, QSize(w, h).
+                                      expandedTo(QApplication::globalStrut()), this));
+}
+
+
+/*!
+    \property QLineEdit::cursorPosition
+    \brief the current cursor position for this line edit
+
+    Setting the cursor position causes a repaint when appropriate.
+
+    By default, this property contains a value of 0.
+*/
+
+int QLineEdit::cursorPosition() const
+{
+    Q_D(const QLineEdit);
+    return d->cursor;
+}
+
+void QLineEdit::setCursorPosition(int pos)
+{
+    Q_D(QLineEdit);
+    if (pos < 0)
+        pos = 0;
+
+    if (pos <= d->text.length())
+        d->moveCursor(pos);
+}
+
+/*!
+    Returns the cursor position under the point \a pos.
+*/
+// ### What should this do if the point is outside of contentsRect? Currently returns 0.
+int QLineEdit::cursorPositionAt(const QPoint &pos)
+{
+    Q_D(QLineEdit);
+    return d->xToPos(pos.x());
+}
+
+
+#ifdef QT3_SUPPORT
+/*! \obsolete
+
+    Use setText(), setCursorPosition() and setSelection() instead.
+*/
+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;
+    }
+    return false;
+}
+#endif //QT3_SUPPORT
+
+/*!
+    \property QLineEdit::alignment
+    \brief the alignment of the line edit
+
+    Both horizontal and vertical alignment is allowed here, Qt::AlignJustify
+    will map to Qt::AlignLeft.
+
+    By default, this property contains a combination of Qt::AlignLeft and Qt::AlignVCenter.
+
+    \sa Qt::Alignment
+*/
+
+Qt::Alignment QLineEdit::alignment() const
+{
+    Q_D(const QLineEdit);
+    return QFlag(d->alignment);
+}
+
+void QLineEdit::setAlignment(Qt::Alignment alignment)
+{
+    Q_D(QLineEdit);
+    d->alignment = alignment;
+    update();
+}
+
+
+/*!
+    Moves the cursor forward \a steps characters. If \a mark is true
+    each character moved over is added to the selection; if \a mark is
+    false the selection is cleared.
+
+    \sa cursorBackward()
+*/
+
+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);
+}
+
+
+/*!
+    Moves the cursor back \a steps characters. If \a mark is true each
+    character moved over is added to the selection; if \a mark is
+    false the selection is cleared.
+
+    \sa cursorForward()
+*/
+void QLineEdit::cursorBackward(bool mark, int steps)
+{
+    cursorForward(mark, -steps);
+}
+
+/*!
+    Moves the cursor one word forward. If \a mark is true, the word is
+    also selected.
+
+    \sa cursorWordBackward()
+*/
+void QLineEdit::cursorWordForward(bool mark)
+{
+    Q_D(QLineEdit);
+    d->moveCursor(d->textLayout.nextCursorPosition(d->cursor, QTextLayout::SkipWords), mark);
+}
+
+/*!
+    Moves the cursor one word backward. If \a mark is true, the word
+    is also selected.
+
+    \sa cursorWordForward()
+*/
+
+void QLineEdit::cursorWordBackward(bool mark)
+{
+    Q_D(QLineEdit);
+    d->moveCursor(d->textLayout.previousCursorPosition(d->cursor, QTextLayout::SkipWords), mark);
+}
+
+
+/*!
+    If no text is selected, deletes the character to the left of the
+    text cursor and moves the cursor one position to the left. If any
+    text is selected, the cursor is moved to the beginning of the
+    selected text and the selected text is deleted.
+
+    \sa del()
+*/
+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);
+}
+
+/*!
+    If no text is selected, deletes the character to the right of the
+    text cursor. If any text is selected, the cursor is moved to the
+    beginning of the selected text and the selected text is deleted.
+
+    \sa 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);
+}
+
+/*!
+    Moves the text cursor to the beginning of the line unless it is
+    already there. If \a mark is true, text is selected towards the
+    first position; otherwise, any selected text is unselected if the
+    cursor is moved.
+
+    \sa end()
+*/
+
+void QLineEdit::home(bool mark)
+{
+    Q_D(QLineEdit);
+    d->moveCursor(0, mark);
+}
+
+/*!
+    Moves the text cursor to the end of the line unless it is already
+    there. If \a mark is true, text is selected towards the last
+    position; otherwise, any selected text is unselected if the cursor
+    is moved.
+
+    \sa home()
+*/
+
+void QLineEdit::end(bool mark)
+{
+    Q_D(QLineEdit);
+    d->moveCursor(d->text.length(), mark);
+}
+
+
+/*!
+    \property QLineEdit::modified
+    \brief whether the line edit's contents has been modified by the user
+
+    The modified flag is never read by QLineEdit; it has a default value
+    of false and is changed to true whenever the user changes the line
+    edit's contents.
+
+    This is useful for things that need to provide a default value but
+    do not start out knowing what the default should be (perhaps it
+    depends on other fields on the form). Start the line edit without
+    the best default, and when the default is known, if modified()
+    returns false (the user hasn't entered any text), insert the
+    default value.
+
+    Calling setText() resets the modified flag to false.
+*/
+
+bool QLineEdit::isModified() const
+{
+    Q_D(const QLineEdit);
+    return d->modifiedState != d->undoState;
+}
+
+void QLineEdit::setModified(bool modified)
+{
+    Q_D(QLineEdit);
+    if (modified)
+        d->modifiedState = -1;
+    else
+        d->modifiedState = d->undoState;
+}
+
+
+/*!\fn QLineEdit::clearModified()
+
+Use setModified(false) instead.
+
+    \sa isModified()
+*/
+
+
+/*!
+    \property QLineEdit::hasSelectedText
+    \brief whether there is any text selected
+
+    hasSelectedText() returns true if some or all of the text has been
+    selected by the user; otherwise returns false.
+
+    By default, this property is false.
+
+    \sa selectedText()
+*/
+
+
+bool QLineEdit::hasSelectedText() const
+{
+    Q_D(const QLineEdit);
+    return d->hasSelectedText();
+}
+
+/*!
+    \property QLineEdit::selectedText
+    \brief the selected text
+
+    If there is no selected text this property's value is
+    an empty string.
+
+    By default, this property contains an empty string.
+
+    \sa hasSelectedText()
+*/
+
+QString QLineEdit::selectedText() const
+{
+    Q_D(const QLineEdit);
+    if (d->hasSelectedText())
+        return d->text.mid(d->selstart, d->selend - d->selstart);
+    return QString();
+}
+
+/*!
+    selectionStart() returns the index of the first selected character in the
+    line edit or -1 if no text is selected.
+
+    \sa selectedText()
+*/
+
+int QLineEdit::selectionStart() const
+{
+    Q_D(const QLineEdit);
+    return d->hasSelectedText() ? d->selstart : -1;
+}
+
+
+#ifdef QT3_SUPPORT
+
+/*!
+    \fn void QLineEdit::lostFocus()
+
+    This signal is emitted when the line edit has lost focus.
+
+    Use editingFinished() instead
+    \sa editingFinished(), returnPressed()
+*/
+
+/*!
+    Use isModified() instead.
+*/
+bool QLineEdit::edited() const { return isModified(); }
+/*!
+    Use setModified()  or setText().
+*/
+void QLineEdit::setEdited(bool on) { setModified(on); }
+
+/*!
+    There exists no equivalent functionality in Qt 4.
+*/
+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);
+    return pos;
+
+}
+
+/*!
+    Use selectedText() and selectionStart() instead.
+*/
+bool QLineEdit::getSelection(int *start, int *end)
+{
+    Q_D(QLineEdit);
+    if (d->hasSelectedText() && start && end) {
+        *start = d->selstart;
+        *end = d->selend;
+        return true;
+    }
+    return false;
+}
+#endif
+
+
+/*!
+    Selects text from position \a start and for \a length characters.
+    Negative lengths are allowed.
+
+    \sa deselect() selectAll() selectedText()
+*/
+
+void QLineEdit::setSelection(int start, int length)
+{
+    Q_D(QLineEdit);
+    if (start < 0 || start > (int)d->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()){
+        QStyleOptionFrameV2 opt;
+        initStyleOption(&opt);
+        if (!style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
+            d->setCursorVisible(false);
+    }
+
+    update();
+    d->emitCursorPositionChanged();
+}
+
+
+/*!
+    \property QLineEdit::undoAvailable
+    \brief whether undo is available
+
+    Undo becomes available once the user has modified the text in the line edit.
+
+    By default, this property is false.
+*/
+
+bool QLineEdit::isUndoAvailable() const
+{
+    Q_D(const QLineEdit);
+    return d->isUndoAvailable();
+}
+
+/*!
+    \property QLineEdit::redoAvailable
+    \brief whether redo is available
+
+    Redo becomes available once the user has performed one or more undo operations
+    on text in the line edit.
+
+    By default, this property is false.
+*/
+
+bool QLineEdit::isRedoAvailable() const
+{
+    Q_D(const QLineEdit);
+    return d->isRedoAvailable();
+}
+
+/*!
+    \property QLineEdit::dragEnabled
+    \brief whether the lineedit starts a drag if the user presses and
+    moves the mouse on some selected text
+
+    Dragging is disabled by default.
+*/
+
+bool QLineEdit::dragEnabled() const
+{
+    Q_D(const QLineEdit);
+    return d->dragEnabled;
+}
+
+void QLineEdit::setDragEnabled(bool b)
+{
+    Q_D(QLineEdit);
+    d->dragEnabled = b;
+}
+
+
+/*!
+    \property QLineEdit::acceptableInput
+    \brief whether the input satisfies the inputMask and the
+    validator.
+
+    By default, this property is true.
+
+    \sa setInputMask(), setValidator()
+*/
+bool QLineEdit::hasAcceptableInput() const
+{
+    Q_D(const QLineEdit);
+    return d->hasAcceptableInput(d->text);
+}
+
+/*!
+    Sets the margins around the text inside the frame to have the
+    sizes \a left, \a top, \a right, and \a bottom.
+    \since 4.5
+
+    See also getTextMargins().
+*/
+void QLineEdit::setTextMargins(int left, int top, int right, int bottom)
+{
+    Q_D(QLineEdit);
+    d->leftTextMargin = left;
+    d->topTextMargin = top;
+    d->rightTextMargin = right;
+    d->bottomTextMargin = bottom;
+    updateGeometry();
+    update();
+}
+
+/*!
+    Returns the widget's text margins for \a left, \a top, \a right, and \a bottom.
+    \since 4.5
+
+    \sa setTextMargins()
+*/
+void QLineEdit::getTextMargins(int *left, int *top, int *right, int *bottom) const
+{
+    Q_D(const QLineEdit);
+    if (left)
+        *left = d->leftTextMargin;
+    if (top)
+        *top = d->topTextMargin;
+    if (right)
+        *right = d->rightTextMargin;
+    if (bottom)
+        *bottom = d->bottomTextMargin;
+}
+
+/*!
+    \property QLineEdit::inputMask
+    \brief The validation input mask
+
+    If no mask is set, inputMask() returns an empty string.
+
+    Sets the QLineEdit's validation mask. Validators can be used
+    instead of, or in conjunction with masks; see setValidator().
+
+    Unset the mask and return to normal QLineEdit operation by passing
+    an empty string ("") or just calling setInputMask() with no
+    arguments.
+
+    The table below shows the characters that can be used in an input mask.
+    A space character, the default character for a blank, is needed for cases
+    where a character is \e{permitted but not required}.
+
+    \table
+    \header \i Character \i Meaning
+    \row \i \c A \i ASCII alphabetic character required. A-Z, a-z.
+    \row \i \c a \i ASCII alphabetic character permitted but not required.
+    \row \i \c N \i ASCII alphanumeric character required. A-Z, a-z, 0-9.
+    \row \i \c n \i ASCII alphanumeric character permitted but not required.
+    \row \i \c X \i Any character required.
+    \row \i \c x \i Any character permitted but not required.
+    \row \i \c 9 \i ASCII digit required. 0-9.
+    \row \i \c 0 \i ASCII digit permitted but not required.
+    \row \i \c D \i ASCII digit required. 1-9.
+    \row \i \c d \i ASCII digit permitted but not required (1-9).
+    \row \i \c # \i ASCII digit or plus/minus sign permitted but not required.
+    \row \i \c H \i Hexadecimal character required. A-F, a-f, 0-9.
+    \row \i \c h \i Hexadecimal character permitted but not required.
+    \row \i \c B \i Binary character required. 0-1.
+    \row \i \c b \i Binary character permitted but not required.
+    \row \i \c > \i All following alphabetic characters are uppercased.
+    \row \i \c < \i All following alphabetic characters are lowercased.
+    \row \i \c ! \i Switch off case conversion.
+    \row \i \tt{\\} \i Use \tt{\\} to escape the special
+                           characters listed above to use them as
+                           separators.
+    \endtable
+
+    The mask consists of a string of mask characters and separators,
+    optionally followed by a semicolon and the character used for
+    blanks. The blank characters are always removed from the text
+    after editing.
+
+    Examples:
+    \table
+    \header \i Mask \i Notes
+    \row \i \c 000.000.000.000;_ \i IP address; blanks are \c{_}.
+    \row \i \c HH:HH:HH:HH:HH:HH;_ \i MAC address
+    \row \i \c 0000-00-00 \i ISO Date; blanks are \c space
+    \row \i \c >AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;# \i License number;
+    blanks are \c - and all (alphabetic) characters are converted to
+    uppercase.
+    \endtable
+
+    To get range control (e.g., for an IP address) use masks together
+    with \link setValidator() validators\endlink.
+
+    \sa maxLength
+*/
+QString QLineEdit::inputMask() const
+{
+    Q_D(const QLineEdit);
+    return (d->maskData ? d->inputMask + QLatin1Char(';') + d->blank : QString());
+}
+
+void QLineEdit::setInputMask(const QString &inputMask)
+{
+    Q_D(QLineEdit);
+    d->parseInputMask(inputMask);
+    if (d->maskData)
+        d->moveCursor(d->nextMaskBlank(0));
+}
+
+/*!
+    Selects all the text (i.e. highlights it) and moves the cursor to
+    the end. This is useful when a default value has been inserted
+    because if the user types before clicking on the widget, the
+    selected text will be deleted.
+
+    \sa setSelection() deselect()
+*/
+
+void QLineEdit::selectAll()
+{
+    Q_D(QLineEdit);
+    d->selstart = d->selend = d->cursor = 0;
+    d->moveCursor(d->text.length(), true);
+}
+
+/*!
+    Deselects any selected text.
+
+    \sa setSelection() selectAll()
+*/
+
+void QLineEdit::deselect()
+{
+    Q_D(QLineEdit);
+    d->deselect();
+    d->finishChange();
+}
+
+
+/*!
+    Deletes any selected text, inserts \a newText, and validates the
+    result. If it is valid, it sets it as the new contents of the line
+    edit.
+
+    \sa setText(), clear()
+*/
+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);
+}
+
+/*!
+    Clears the contents of the line edit.
+
+    \sa setText(), insert()
+*/
+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);
+}
+
+/*!
+    Undoes the last operation if undo is \link
+    QLineEdit::undoAvailable available\endlink. Deselects any current
+    selection, and updates the selection start to the current cursor
+    position.
+*/
+void QLineEdit::undo()
+{
+    Q_D(QLineEdit);
+    resetInputContext();
+    d->undo();
+    d->finishChange(-1, true);
+}
+
+/*!
+    Redoes the last operation if redo is \link
+    QLineEdit::redoAvailable available\endlink.
+*/
+void QLineEdit::redo()
+{
+    Q_D(QLineEdit);
+    resetInputContext();
+    d->redo();
+    d->finishChange();
+}
+
+
+/*!
+    \property QLineEdit::readOnly
+    \brief whether the line edit is read only.
+
+    In read-only mode, the user can still copy the text to the
+    clipboard, or drag and drop the text (if echoMode() is \l Normal),
+    but cannot edit it.
+
+    QLineEdit does not show a cursor in read-only mode.
+
+    By default, this property is false.
+
+    \sa setEnabled()
+*/
+
+bool QLineEdit::isReadOnly() const
+{
+    Q_D(const QLineEdit);
+    return d->readOnly;
+}
+
+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));
+#ifndef QT_NO_CURSOR
+        setCursor(enable ? Qt::ArrowCursor : Qt::IBeamCursor);
+#endif
+        update();
+    }
+}
+
+
+#ifndef QT_NO_CLIPBOARD
+/*!
+    Copies the selected text to the clipboard and deletes it, if there
+    is any, and if echoMode() is \l Normal.
+
+    If the current validator disallows deleting the selected text,
+    cut() will copy without deleting.
+
+    \sa copy() paste() setValidator()
+*/
+
+void QLineEdit::cut()
+{
+    if (hasSelectedText()) {
+        copy();
+        del();
+    }
+}
+
+
+/*!
+    Copies the selected text to the clipboard, if there is any, and if
+    echoMode() is \l Normal.
+
+    \sa cut() paste()
+*/
+
+void QLineEdit::copy() const
+{
+    Q_D(const QLineEdit);
+    d->copy();
+}
+
+/*!
+    Inserts the clipboard's text at the cursor position, deleting any
+    selected text, providing the line edit is not \link
+    QLineEdit::readOnly read-only\endlink.
+
+    If the end result would not be acceptable to the current
+    \link setValidator() validator\endlink, nothing happens.
+
+    \sa copy() cut()
+*/
+
+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) {
+        q->disconnect(QApplication::clipboard(), SIGNAL(selectionChanged()), q, 0);
+        QApplication::clipboard()->setText(t, clipboard ? QClipboard::Clipboard : QClipboard::Selection);
+        q->connect(QApplication::clipboard(), SIGNAL(selectionChanged()),
+                   q, SLOT(_q_clipboardChanged()));
+    }
+}
+
+#endif // !QT_NO_CLIPBOARD
+
+/*! \reimp
+*/
+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) {
+        // 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);
+#ifndef QT_NO_DRAGANDDROP
+        } else if (timerId == d->dndTimer.timerId()) {
+            d->drag();
+#endif
+        }
+        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())
+            return true;
+#endif
+        d->separate();
+    } else if (e->type() == QEvent::WindowActivate) {
+        QTimer::singleShot(0, this, SLOT(_q_handleWindowActivate()));
+    }
+#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) {
+            end(false);
+            if (!d->cursorTimer) {
+                int cft = QApplication::cursorFlashTime();
+                d->cursorTimer = cft ? startTimer(cft/2) : -1;
+            }
+        } 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;
+                }
+            }
+        }
+    }
+#endif
+    return QWidget::event(e);
+}
+
+/*! \reimp
+*/
+void QLineEdit::mousePressEvent(QMouseEvent* e)
+{
+    Q_D(QLineEdit);
+    if (d->sendMouseEventToInputContext(e))
+	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();
+    }
+#endif
+    if (d->tripleClickTimer.isActive() && (e->pos() - d->tripleClick).manhattanLength() <
+         QApplication::startDragDistance()) {
+        selectAll();
+        return;
+    }
+    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();
+        d->dndPos = e->pos();
+        if (!d->dndTimer.isActive())
+            d->dndTimer.start(QApplication::startDragTime(), this);
+        d->emitCursorPositionChanged();
+    } else
+#endif
+    {
+        d->moveCursor(cursor, mark);
+    }
+}
+
+/*! \reimp
+*/
+void QLineEdit::mouseMoveEvent(QMouseEvent * e)
+{
+    Q_D(QLineEdit);
+    if (d->sendMouseEventToInputContext(e))
+	return;
+
+    if (e->buttons() & Qt::LeftButton) {
+#ifndef QT_NO_DRAGANDDROP
+        if (d->dndTimer.isActive()) {
+            if ((d->dndPos - e->pos()).manhattanLength() > QApplication::startDragDistance())
+                d->drag();
+        } else
+#endif
+        {
+            d->moveCursor(d->xToPos(e->pos().x()), true);
+        }
+    }
+}
+
+/*! \reimp
+*/
+void QLineEdit::mouseReleaseEvent(QMouseEvent* e)
+{
+    Q_D(QLineEdit);
+    if (d->sendMouseEventToInputContext(e))
+	return;
+#ifndef QT_NO_DRAGANDDROP
+    if (e->button() == Qt::LeftButton) {
+        if (d->dndTimer.isActive()) {
+            d->dndTimer.stop();
+            deselect();
+            return;
+        }
+    }
+#endif
+#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();
+            insert(QApplication::clipboard()->text(QClipboard::Selection));
+        }
+    }
+#endif
+}
+
+/*! \reimp
+*/
+void QLineEdit::mouseDoubleClickEvent(QMouseEvent* e)
+{
+    Q_D(QLineEdit);
+    if (d->sendMouseEventToInputContext(e))
+	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->tripleClickTimer.start(QApplication::doubleClickInterval(), this);
+        d->tripleClick = e->pos();
+    }
+}
+
+/*!
+    \fn void  QLineEdit::returnPressed()
+
+    This signal is emitted when the Return or Enter key is pressed.
+    Note that if there is a validator() or inputMask() set on the line
+    edit, the returnPressed() signal will only be emitted if the input
+    follows the inputMask() and the validator() returns
+    QValidator::Acceptable.
+*/
+
+/*!
+    \fn void  QLineEdit::editingFinished()
+
+    This signal is emitted when the Return or Enter key is pressed or
+    the line edit loses focus. Note that if there is a validator() or
+    inputMask() set on the line edit and enter/return is pressed, the
+    editingFinished() signal will only be emitted if the input follows
+    the inputMask() and the validator() returns QValidator::Acceptable.
+*/
+
+/*!
+    Converts the given key press \a event into a line edit action.
+
+    If Return or Enter is pressed and the current text is valid (or
+    can be \link QValidator::fixup() made valid\endlink by the
+    validator), the signal returnPressed() is emitted.
+
+    The default key bindings are listed in the class's detailed
+    description.
+*/
+
+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
+    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();
+                    select = true;
+                }
+            }
+            break;
+        case Qt::Key_Back:
+        case Qt::Key_No:
+            if (!QApplication::keypadNavigationEnabled() || !hasEditFocus()) {
+                event->ignore();
+                return;
+            }
+            break;
+        default:
+            if (QApplication::keypadNavigationEnabled()) {
+                if (!hasEditFocus() && !(event->modifiers() & Qt::ControlModifier)) {
+                    if (!event->text().isEmpty() && event->text().at(0).isPrint()
+                        && !isReadOnly())
+                    {
+                        setEditFocus(true);
+                        clear();
+                    } else {
+                        event->ignore();
+                        return;
+                    }
+                }
+            }
+    }
+
+
+
+    if (QApplication::keypadNavigationEnabled() && !select && !hasEditFocus()) {
+        setEditFocus(true);
+        if (event->key() == Qt::Key_Select)
+            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();
+}
+
+/*!
+  \since 4.4
+
+  Returns a rectangle that includes the lineedit cursor.
+*/
+QRect QLineEdit::cursorRect() const
+{
+    Q_D(const QLineEdit);
+    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) {
+        e->ignore();
+        return;
+    }
+
+    if (echoMode() == PasswordEchoOnEdit && !d->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.
+        d->updatePasswordEchoEditing(true);
+        clear();
+    }
+
+#ifdef QT_KEYPAD_NAVIGATION
+    // Focus in if currently in navigation focus on the widget
+    // Only focus in on preedits, to allow input methods to
+    // commit text as they focus out without interfering with focus
+    if (QApplication::keypadNavigationEnabled()
+        && hasFocus() && !hasEditFocus()
+        && !e->preeditString().isEmpty()) {
+        setEditFocus(true);
+        selectAll();        // so text is replaced rather than appended to
+    }
+#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();
+
+    // 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);
+#endif
+}
+
+/*!\reimp
+*/
+QVariant QLineEdit::inputMethodQuery(Qt::InputMethodQuery property) const
+{
+    Q_D(const QLineEdit);
+    switch(property) {
+    case Qt::ImMicroFocus:
+        return d->cursorRect();
+    case Qt::ImFont:
+        return font();
+    case Qt::ImCursorPosition:
+        return QVariant((d->selend - d->selstart == 0) ? d->cursor : d->selend);
+    case Qt::ImSurroundingText:
+        return QVariant(d->text);
+    case Qt::ImCurrentSelection:
+        return QVariant(selectedText());
+    default:
+        return QVariant();
+    }
+}
+
+/*!\reimp
+*/
+
+void QLineEdit::focusInEvent(QFocusEvent *e)
+{
+    Q_D(QLineEdit);
+    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())
+            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;
+    }
+    QStyleOptionFrameV2 opt;
+    initStyleOption(&opt);
+    if((!hasSelectedText() && d->textLayout.preeditAreaText().isEmpty())
+       || style()->styleHint(QStyle::SH_BlinkCursorWhenTextSelected, &opt, this))
+        d->setCursorVisible(true);
+#ifdef Q_WS_MAC
+    if (d->echoMode == Password || d->echoMode == NoEcho)
+        qt_mac_secure_keyboard(true);
+#endif
+#ifdef QT_KEYPAD_NAVIGATION
+    d->origText = d->text;
+#endif
+#ifndef QT_NO_COMPLETER
+    if (d->completer) {
+        d->completer->setWidget(this);
+        QObject::connect(d->completer, SIGNAL(activated(QString)),
+                         this, SLOT(setText(QString)));
+        QObject::connect(d->completer, SIGNAL(highlighted(QString)),
+                         this, SLOT(_q_completionHighlighted(QString)));
+    }
+#endif
+    update();
+}
+
+/*!\reimp
+*/
+
+void QLineEdit::focusOutEvent(QFocusEvent *e)
+{
+    Q_D(QLineEdit);
+    if (d->passwordEchoEditing) {
+        // Reset the echomode back to PasswordEchoOnEdit when the widget loses
+        // focus.
+        d->updatePasswordEchoEditing(false);
+    }
+
+    Qt::FocusReason reason = e->reason();
+    if (reason != Qt::ActiveWindowFocusReason &&
+        reason != Qt::PopupFocusReason)
+        deselect();
+
+    d->setCursorVisible(false);
+    if (d->cursorTimer > 0)
+        killTimer(d->cursorTimer);
+    d->cursorTimer = 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;
+                emit editingFinished();
+                d->emitingEditingFinished = false;
+            }
+        }
+#ifdef QT3_SUPPORT
+        emit lostFocus();
+#endif
+    }
+#ifdef Q_WS_MAC
+    if (d->echoMode == Password || d->echoMode == NoEcho)
+        qt_mac_secure_keyboard(false);
+#endif
+#ifdef QT_KEYPAD_NAVIGATION
+    d->origText = QString();
+#endif
+#ifndef QT_NO_COMPLETER
+    if (d->completer) {
+        QObject::disconnect(d->completer, 0, this, 0);
+    }
+#endif
+    update();
+}
+
+/*!\reimp
+*/
+void QLineEdit::paintEvent(QPaintEvent *)
+{
+    Q_D(QLineEdit);
+    QPainter p(this);
+
+    QRect r = rect();
+    QPalette pal = palette();
+
+    QStyleOptionFrameV2 panel;
+    initStyleOption(&panel);
+    style()->drawPrimitive(QStyle::PE_PanelLineEdit, &panel, &p, this);
+    r = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
+    r.setX(r.x() + d->leftTextMargin);
+    r.setY(r.y() + d->topTextMargin);
+    r.setRight(r.right() - d->rightTextMargin);
+    r.setBottom(r.bottom() - d->bottomTextMargin);
+    p.setClipRect(r);
+
+    QFontMetrics fm = fontMetrics();
+    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;
+         break;
+     case Qt::AlignTop:
+         d->vscroll = r.y() + 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);
+
+    int cursor = d->cursor;
+    if (d->preeditCursor != -1)
+        cursor += d->preeditCursor;
+    // locate cursor position
+    int cix = qRound(line.cursorToX(cursor));
+
+    // 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
+    // depending on the delta from the last paint event; in effect this means
+    // the below code handles all scrolling based on the textline (widthUsed,
+    // minLB, minRB), the line edit rect (lineRect) and the cursor position
+    // (cix).
+    int minLB = qMax(0, -fm.minLeftBearing());
+    int minRB = qMax(0, -fm.minRightBearing());
+    int widthUsed = qRound(line.naturalTextWidth()) + 1 + minRB;
+    if ((minLB + widthUsed) <=  lineRect.width()) {
+        // text fits in lineRect; use hscroll for alignment
+        switch (va & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) {
+        case Qt::AlignRight:
+            d->hscroll = widthUsed - lineRect.width() + 1;
+            break;
+        case Qt::AlignHCenter:
+            d->hscroll = (widthUsed - lineRect.width()) / 2;
+            break;
+        default:
+            // Left
+            d->hscroll = 0;
+            break;
+        }
+        d->hscroll -= minLB;
+    } else if (cix - d->hscroll >= lineRect.width()) {
+        // text doesn't fit, cursor is to the right of lineRect (scroll right)
+        d->hscroll = cix - lineRect.width() + 1;
+    } else if (cix - d->hscroll < 0 && d->hscroll < widthUsed) {
+        // text doesn't fit, cursor is to the left of lineRect (scroll left)
+        d->hscroll = cix;
+    } else if (widthUsed - d->hscroll < lineRect.width()) {
+        // text doesn't fit, text document is to the left of lineRect; align
+        // right
+        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());
+
+    // draw text, selections and cursors
+#ifndef QT_NO_STYLE_STYLESHEET
+    if (QStyleSheetStyle* cssStyle = qobject_cast<QStyleSheetStyle*>(style())) {
+        cssStyle->focusPalette(this, &panel, &pal);
+    }
+#endif
+    p.setPen(pal.text().color());
+
+    QVector<QTextLayout::FormatRange> selections;
+#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);
+    }
+
+    // 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));
+}
+
+
+#ifndef QT_NO_DRAGANDDROP
+/*!\reimp
+*/
+void QLineEdit::dragMoveEvent(QDragMoveEvent *e)
+{
+    Q_D(QLineEdit);
+    if (!d->readOnly && e->mimeData()->hasFormat(QLatin1String("text/plain"))) {
+        e->acceptProposedAction();
+        d->cursor = d->xToPos(e->pos().x());
+        d->cursorVisible = true;
+        update();
+        d->emitCursorPositionChanged();
+    }
+}
+
+/*!\reimp */
+void QLineEdit::dragEnterEvent(QDragEnterEvent * e)
+{
+    QLineEdit::dragMoveEvent(e);
+}
+
+/*!\reimp */
+void QLineEdit::dragLeaveEvent(QDragLeaveEvent *)
+{
+    Q_D(QLineEdit);
+    if (d->cursorVisible) {
+        d->cursorVisible = false;
+        update();
+    }
+}
+
+/*!\reimp */
+void QLineEdit::dropEvent(QDropEvent* e)
+{
+    Q_D(QLineEdit);
+    QString str = e->mimeData()->text();
+
+    if (!str.isNull() && !d->readOnly) {
+        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;
+        d->cursorVisible = false;
+        e->acceptProposedAction();
+        insert(str);
+        if (e->source() == this) {
+            if (e->dropAction() == Qt::MoveAction) {
+                if (selStart > oldSelStart && selStart <= oldSelEnd)
+                    setSelection(oldSelStart, str.length());
+                else if (selStart > oldSelEnd)
+                    setSelection(selStart - str.length(), str.length());
+                else
+                    setSelection(selStart, str.length());
+            } else {
+                setSelection(selStart, str.length());
+            }
+        }
+    } else {
+        e->ignore();
+        update();
+    }
+}
+
+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
+/*!
+    Shows the standard context menu created with
+    createStandardContextMenu().
+
+    If you do not want the line edit to have a context menu, you can set
+    its \l contextMenuPolicy to Qt::NoContextMenu. If you want to
+    customize the context menu, reimplement this function. If you want
+    to extend the standard context menu, reimplement this function, call
+    createStandardContextMenu() and extend the menu returned.
+
+    \snippet doc/src/snippets/code/src_gui_widgets_qlineedit.cpp 0
+
+    The \a event parameter is used to obtain the position where
+    the mouse cursor was when the event was generated.
+
+    \sa setContextMenuPolicy()
+*/
+void QLineEdit::contextMenuEvent(QContextMenuEvent *event)
+{
+    QPointer<QMenu> menu = createStandardContextMenu();
+    menu->exec(event->globalPos());
+    delete menu;
+}
+
+#if defined(Q_WS_WIN)
+    extern bool qt_use_rtl_extensions;
+#endif
+
+/*!  This function creates the standard context menu which is shown
+        when the user clicks on the line edit with the right mouse
+        button. It is called from the default contextMenuEvent() handler.
+        The popup menu's ownership is transferred to the caller.
+*/
+
+QMenu *QLineEdit::createStandardContextMenu()
+{
+    Q_D(QLineEdit);
+    QMenu *popup = new QMenu(this);
+    popup->setObjectName(QLatin1String("qt_edit_menu"));
+
+    QAction *action = popup->addAction(QLineEdit::tr("&Undo") + ACCEL_KEY(QKeySequence::Undo));
+    action->setEnabled(d->isUndoAvailable());
+    connect(action, SIGNAL(triggered()), SLOT(undo()));
+
+    action = popup->addAction(QLineEdit::tr("&Redo") + ACCEL_KEY(QKeySequence::Redo));
+    action->setEnabled(d->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());
+    connect(action, SIGNAL(triggered()), SLOT(cut()));
+
+    action = popup->addAction(QLineEdit::tr("&Copy") + ACCEL_KEY(QKeySequence::Copy));
+    action->setEnabled(d->hasSelectedText());
+    connect(action, SIGNAL(triggered()), SLOT(copy()));
+
+    action = popup->addAction(QLineEdit::tr("&Paste") + ACCEL_KEY(QKeySequence::Paste));
+    action->setEnabled(!d->readOnly && !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());
+    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());
+    d->selectAllAction = action;
+    connect(action, SIGNAL(triggered()), SLOT(selectAll()));
+
+#if !defined(QT_NO_IM)
+    QInputContext *qic = inputContext();
+    if (qic) {
+        QList<QAction *> imActions = qic->actions();
+        for (int i = 0; i < imActions.size(); ++i)
+            popup->addAction(imActions.at(i));
+    }
+#endif
+
+#if defined(Q_WS_WIN)
+    if (!d->readOnly && qt_use_rtl_extensions) {
+#else
+    if (!d->readOnly) {
+#endif
+        popup->addSeparator();
+        QUnicodeControlCharacterMenu *ctrlCharacterMenu = new QUnicodeControlCharacterMenu(this, popup);
+        popup->addMenu(ctrlCharacterMenu);
+    }
+    return popup;
+}
+#endif // QT_NO_CONTEXTMENU
+
+/*! \reimp */
+void QLineEdit::changeEvent(QEvent *ev)
+{
+    Q_D(QLineEdit);
+    if(ev->type() == 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_clipboardChanged()
+{
+}
+
+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;
+        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;
+        break;
+    case 'h':
+        if (key.isNumber() || (key >= QLatin1Char('a') && key <= QLatin1Char('f')) || (key >= QLatin1Char('A') && key <= QLatin1Char('F')) || key == blank)
+            return true;
+        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);
+            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();
+}
+
+/*!
+    \fn void QLineEdit::repaintArea(int a, int b)
+
+    Use update() instead.
+*/
+
+/*!
+    \fn void QLineEdit::cursorLeft(bool mark, int steps)
+
+    Use cursorForward() with a negative number of steps instead. For
+    example, cursorForward(mark, -steps).
+*/
+
+/*!
+    \fn void QLineEdit::cursorRight(bool mark, int steps)
+
+    Use cursorForward() instead.
+*/
+
+/*!
+    \fn bool QLineEdit::frame() const
+
+    Use hasFrame() instead.
+*/
+
+/*!
+    \fn void QLineEdit::clearValidator()
+
+    Use setValidator(0) instead.
+*/
+
+/*!
+    \fn bool QLineEdit::hasMarkedText() const
+
+    Use hasSelectedText() instead.
+*/
+
+/*!
+    \fn QString QLineEdit::markedText() const
+
+    Use selectedText() instead.
+*/
+
+/*!
+    \fn void QLineEdit::setFrameRect(QRect)
+    \internal
+*/
+
+/*!
+    \fn QRect QLineEdit::frameRect() const
+    \internal
+*/
+/*!
+    \enum QLineEdit::DummyFrame
+    \internal
+
+    \value Box
+    \value Sunken
+    \value Plain
+    \value Raised
+    \value MShadow
+    \value NoFrame
+    \value Panel
+    \value StyledPanel
+    \value HLine
+    \value VLine
+    \value GroupBoxPanel
+    \value WinPanel
+    \value ToolBarPanel
+    \value MenuBarPanel
+    \value PopupPanel
+    \value LineEditPanel
+    \value TabWidgetPanel
+    \value MShape
+*/
+
+/*!
+    \fn void QLineEdit::setFrameShadow(DummyFrame)
+    \internal
+*/
+
+/*!
+    \fn DummyFrame QLineEdit::frameShadow() const
+    \internal
+*/
+
+/*!
+    \fn void QLineEdit::setFrameShape(DummyFrame)
+    \internal
+*/
+
+/*!
+    \fn DummyFrame QLineEdit::frameShape() const
+    \internal
+*/
+
+/*!
+    \fn void QLineEdit::setFrameStyle(int)
+    \internal
+*/
+
+/*!
+    \fn int QLineEdit::frameStyle() const
+    \internal
+*/
+
+/*!
+    \fn int QLineEdit::frameWidth() const
+    \internal
+*/
+
+/*!
+    \fn void QLineEdit::setLineWidth(int)
+    \internal
+*/
+
+/*!
+    \fn int QLineEdit::lineWidth() const
+    \internal
+*/
+
+/*!
+    \fn void QLineEdit::setMargin(int margin)
+    Sets the width of the margin around the contents of the widget to \a margin.
+
+    Use QWidget::setContentsMargins() instead.
+    \sa margin(), QWidget::setContentsMargins()
+*/
+
+/*!
+    \fn int QLineEdit::margin() const
+    Returns the with of the the margin around the contents of the widget.
+
+    Use QWidget::getContentsMargins() instead.
+    \sa setMargin(), QWidget::getContentsMargins()
+*/
+
+/*!
+    \fn void QLineEdit::setMidLineWidth(int)
+    \internal
+*/
+
+/*!
+    \fn int QLineEdit::midLineWidth() const
+    \internal
+*/
+
+QT_END_NAMESPACE
+
+#include "moc_qlineedit.cpp"
+
+#endif // QT_NO_LINEEDIT