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 "qitemdelegate.h"
+
+#ifndef QT_NO_ITEMVIEWS
+#include <qabstractitemmodel.h>
+#include <qapplication.h>
+#include <qbrush.h>
+#include <qlineedit.h>
+#include <qtextedit.h>
+#include <qpainter.h>
+#include <qpalette.h>
+#include <qpoint.h>
+#include <qrect.h>
+#include <qsize.h>
+#include <qstyle.h>
+#include <qdatetime.h>
+#include <qstyleoption.h>
+#include <qevent.h>
+#include <qpixmap.h>
+#include <qbitmap.h>
+#include <qpixmapcache.h>
+#include <qitemeditorfactory.h>
+#include <qmetaobject.h>
+#include <qtextlayout.h>
+#include <private/qobject_p.h>
+#include <private/qdnd_p.h>
+#include <private/qtextengine_p.h>
+#include <qdebug.h>
+#include <qlocale.h>
+#include <qdialog.h>
+
+#include <limits.h>
+
+#ifndef DBL_DIG
+#  define DBL_DIG 10
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QItemDelegatePrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QItemDelegate)
+
+public:
+    QItemDelegatePrivate() : f(0), clipPainting(true) {}
+
+    inline const QItemEditorFactory *editorFactory() const
+        { return f ? f : QItemEditorFactory::defaultFactory(); }
+
+    inline QIcon::Mode iconMode(QStyle::State state) const
+        {
+            if (!(state & QStyle::State_Enabled)) return QIcon::Disabled;
+            if (state & QStyle::State_Selected) return QIcon::Selected;
+            return QIcon::Normal;
+        }
+
+    inline QIcon::State iconState(QStyle::State state) const
+        { return state & QStyle::State_Open ? QIcon::On : QIcon::Off; }
+
+    inline static QString replaceNewLine(QString text)
+        {
+            const QChar nl = QLatin1Char('\n');
+            for (int i = 0; i < text.count(); ++i)
+                if (text.at(i) == nl)
+                    text[i] = QChar::LineSeparator;
+            return text;
+        }
+
+    static QString valueToText(const QVariant &value, const QStyleOptionViewItemV4 &option);
+
+    void _q_commitDataAndCloseEditor(QWidget *editor);
+
+    QItemEditorFactory *f;
+    bool clipPainting;
+
+    QRect textLayoutBounds(const QStyleOptionViewItemV2 &options) const;
+    QSizeF doTextLayout(int lineWidth) const;
+    mutable QTextLayout textLayout;
+    mutable QTextOption textOption;
+
+    const QWidget *widget(const QStyleOptionViewItem &option) const
+    {
+        if (const QStyleOptionViewItemV3 *v3 = qstyleoption_cast<const QStyleOptionViewItemV3 *>(&option))
+            return v3->widget;
+
+        return 0;
+    }
+
+    // ### temporary hack until we have QStandardItemDelegate
+    mutable struct Icon {
+        QIcon icon;
+        QIcon::Mode mode;
+        QIcon::State state;
+    } tmp;
+};
+
+void QItemDelegatePrivate::_q_commitDataAndCloseEditor(QWidget *editor)
+{
+    Q_Q(QItemDelegate);
+    emit q->commitData(editor);
+    emit q->closeEditor(editor, QAbstractItemDelegate::SubmitModelCache);
+}
+
+QRect QItemDelegatePrivate::textLayoutBounds(const QStyleOptionViewItemV2 &option) const
+{
+    QRect rect = option.rect;
+    const bool wrapText = option.features & QStyleOptionViewItemV2::WrapText;
+    switch (option.decorationPosition) {
+    case QStyleOptionViewItem::Left:
+    case QStyleOptionViewItem::Right:
+        rect.setWidth(wrapText && rect.isValid() ? rect.width() : (QFIXED_MAX));
+        break;
+    case QStyleOptionViewItem::Top:
+    case QStyleOptionViewItem::Bottom:
+        rect.setWidth(wrapText ? option.decorationSize.width() : (QFIXED_MAX));
+        break;
+    }
+
+    return rect;
+}
+
+QSizeF QItemDelegatePrivate::doTextLayout(int lineWidth) const
+{
+    qreal height = 0;
+    qreal widthUsed = 0;
+    textLayout.beginLayout();
+    while (true) {
+        QTextLine line = textLayout.createLine();
+        if (!line.isValid())
+            break;
+        line.setLineWidth(lineWidth);
+        line.setPosition(QPointF(0, height));
+        height += line.height();
+        widthUsed = qMax(widthUsed, line.naturalTextWidth());
+    }
+    textLayout.endLayout();
+    return QSizeF(widthUsed, height);
+}
+
+/*!
+    \class QItemDelegate
+
+    \brief The QItemDelegate class provides display and editing facilities for
+    data items from a model.
+
+    \ingroup model-view
+    \mainclass
+
+    QItemDelegate can be used to provide custom display features and editor
+    widgets for item views based on QAbstractItemView subclasses. Using a
+    delegate for this purpose allows the display and editing mechanisms to be
+    customized and developed independently from the model and view.
+
+    The QItemDelegate class is one of the \l{Model/View Classes} and
+    is part of Qt's \l{Model/View Programming}{model/view framework}.
+    Note that QStyledItemDelegate has taken over the job of drawing
+    Qt's item views. We recommend the use of QStyledItemDelegate when
+    creating new delegates.
+
+    When displaying items from a custom model in a standard view, it is
+    often sufficient to simply ensure that the model returns appropriate
+    data for each of the \l{Qt::ItemDataRole}{roles} that determine the
+    appearance of items in views. The default delegate used by Qt's
+    standard views uses this role information to display items in most
+    of the common forms expected by users. However, it is sometimes
+    necessary to have even more control over the appearance of items than
+    the default delegate can provide.
+
+    This class provides default implementations of the functions for
+    painting item data in a view and editing data from item models.
+    Default implementations of the paint() and sizeHint() virtual
+    functions, defined in QAbstractItemDelegate, are provided to
+    ensure that the delegate implements the correct basic behavior
+    expected by views. You can reimplement these functions in
+    subclasses to customize the appearance of items.
+
+    When editing data in an item view, QItemDelegate provides an
+    editor widget, which is a widget that is placed on top of the view
+    while editing takes place. Editors are created with a
+    QItemEditorFactory; a default static instance provided by
+    QItemEditorFactory is installed on all item delagates. You can set
+    a custom factory using setItemEditorFactory() or set a new default
+    factory with QItemEditorFactory::setDefaultFactory(). It is the
+    data stored in the item model with the Qt::EditRole that is edited.
+
+    Only the standard editing functions for widget-based delegates are
+    reimplemented here:
+
+    \list
+        \o createEditor() returns the widget used to change data from the model
+           and can be reimplemented to customize editing behavior.
+        \o setEditorData() provides the widget with data to manipulate.
+        \o updateEditorGeometry() ensures that the editor is displayed correctly
+           with respect to the item view.
+        \o setModelData() returns updated data to the model.
+    \endlist
+
+    The closeEditor() signal indicates that the user has completed editing the data,
+    and that the editor widget can be destroyed.
+
+    \section1 Standard Roles and Data Types
+
+    The default delegate used by the standard views supplied with Qt
+    associates each standard role (defined by Qt::ItemDataRole) with certain
+    data types. Models that return data in these types can influence the
+    appearance of the delegate as described in the following table.
+
+    \table
+    \header \o Role \o Accepted Types
+    \omit
+    \row    \o \l Qt::AccessibleDescriptionRole \o QString
+    \row    \o \l Qt::AccessibleTextRole \o QString
+    \endomit
+    \row    \o \l Qt::BackgroundRole \o QBrush
+    \row    \o \l Qt::BackgroundColorRole \o QColor (obsolete; use Qt::BackgroundRole instead)
+    \row    \o \l Qt::CheckStateRole \o Qt::CheckState
+    \row    \o \l Qt::DecorationRole \o QIcon and QColor
+    \row    \o \l Qt::DisplayRole \o QString and types with a string representation
+    \row    \o \l Qt::EditRole \o See QItemEditorFactory for details
+    \row    \o \l Qt::FontRole \o QFont
+    \row    \o \l Qt::SizeHintRole \o QSize
+    \omit
+    \row    \o \l Qt::StatusTipRole \o
+    \endomit
+    \row    \o \l Qt::TextAlignmentRole \o Qt::Alignment
+    \row    \o \l Qt::ForegroundRole \o QBrush
+    \row    \o \l Qt::TextColorRole \o QColor (obsolete; use Qt::ForegroundRole instead)
+    \omit
+    \row    \o \l Qt::ToolTipRole
+    \row    \o \l Qt::WhatsThisRole
+    \endomit
+    \endtable
+
+    If the default delegate does not allow the level of customization that
+    you need, either for display purposes or for editing data, it is possible to
+    subclass QItemDelegate to implement the desired behavior.
+
+    \section1 Subclassing
+
+    When subclassing QItemDelegate to create a delegate that displays items
+    using a custom renderer, it is important to ensure that the delegate can
+    render items suitably for all the required states; e.g. selected,
+    disabled, checked. The documentation for the paint() function contains
+    some hints to show how this can be achieved.
+
+    You can provide custom editors by using a QItemEditorFactory. The
+    \l{Color Editor Factory Example} shows how a custom editor can be
+    made available to delegates with the default item editor
+    factory. This way, there is no need to subclass QItemDelegate.  An
+    alternative is to reimplement createEditor(), setEditorData(),
+    setModelData(), and updateEditorGeometry(). This process is
+    described in the \l{Spin Box Delegate Example}.
+
+    \section1 QStyledItemDelegate vs. QItemDelegate
+
+    Since Qt 4.4, there are two delegate classes: QItemDelegate and
+    QStyledItemDelegate. However, the default delegate is QStyledItemDelegate.
+    These two classes are independent alternatives to painting and providing
+    editors for items in views. The difference between them is that
+    QStyledItemDelegate uses the current style to paint its items. We therefore
+    recommend using QStyledItemDelegate as the base class when implementing
+    custom delegates or when working with Qt style sheets. The code required
+    for either class should be equal unless the custom delegate needs to use
+    the style for drawing.
+
+    \sa {Delegate Classes}, QStyledItemDelegate, QAbstractItemDelegate,
+        {Spin Box Delegate Example}, {Settings Editor Example},
+        {Icons Example}
+*/
+
+/*!
+    Constructs an item delegate with the given \a parent.
+*/
+
+QItemDelegate::QItemDelegate(QObject *parent)
+    : QAbstractItemDelegate(*new QItemDelegatePrivate(), parent)
+{
+
+}
+
+/*!
+    Destroys the item delegate.
+*/
+
+QItemDelegate::~QItemDelegate()
+{
+}
+
+/*!
+  \property QItemDelegate::clipping
+  \brief if the delegate should clip the paint events
+  \since 4.2
+
+  This property will set the paint clip to the size of the item.
+  The default value is on. It is useful for cases such
+  as when images are larger than the size of the item.
+*/
+
+bool QItemDelegate::hasClipping() const
+{
+    Q_D(const QItemDelegate);
+    return d->clipPainting;
+}
+
+void QItemDelegate::setClipping(bool clip)
+{
+    Q_D(QItemDelegate);
+    d->clipPainting = clip;
+}
+
+QString QItemDelegatePrivate::valueToText(const QVariant &value, const QStyleOptionViewItemV4 &option)
+{
+    QString text;
+    switch (value.type()) {
+        case QVariant::Double:
+            text = option.locale.toString(value.toDouble(), 'g', DBL_DIG);
+            break;
+        case QVariant::Int:
+        case QVariant::LongLong:
+            text = option.locale.toString(value.toLongLong());
+            break;
+        case QVariant::UInt:
+        case QVariant::ULongLong:
+            text = option.locale.toString(value.toULongLong());
+            break;
+        case QVariant::Date:
+            text = option.locale.toString(value.toDate(), QLocale::ShortFormat);
+            break;
+        case QVariant::Time:
+            text = option.locale.toString(value.toTime(), QLocale::ShortFormat);
+            break;
+        case QVariant::DateTime:
+            text = option.locale.toString(value.toDateTime().date(), QLocale::ShortFormat);
+            text += QLatin1Char(' ');
+            text += option.locale.toString(value.toDateTime().time(), QLocale::ShortFormat);
+            break;
+        default:
+            text = replaceNewLine(value.toString());
+            break;
+    }
+    return text;
+}
+
+/*!
+    Renders the delegate using the given \a painter and style \a option for
+    the item specified by \a index.
+
+    When reimplementing this function in a subclass, you should update the area
+    held by the option's \l{QStyleOption::rect}{rect} variable, using the
+    option's \l{QStyleOption::state}{state} variable to determine the state of
+    the item to be displayed, and adjust the way it is painted accordingly.
+
+    For example, a selected item may need to be displayed differently to
+    unselected items, as shown in the following code:
+
+    \snippet examples/itemviews/pixelator/pixeldelegate.cpp 2
+    \dots
+
+    After painting, you should ensure that the painter is returned to its
+    the state it was supplied in when this function was called. For example,
+    it may be useful to call QPainter::save() before painting and
+    QPainter::restore() afterwards.
+
+    \sa QStyle::State
+*/
+void QItemDelegate::paint(QPainter *painter,
+                          const QStyleOptionViewItem &option,
+                          const QModelIndex &index) const
+{
+    Q_D(const QItemDelegate);
+    Q_ASSERT(index.isValid());
+
+    QStyleOptionViewItemV4 opt = setOptions(index, option);
+
+    const QStyleOptionViewItemV2 *v2 = qstyleoption_cast<const QStyleOptionViewItemV2 *>(&option);
+    opt.features = v2 ? v2->features
+                    : QStyleOptionViewItemV2::ViewItemFeatures(QStyleOptionViewItemV2::None);
+    const QStyleOptionViewItemV3 *v3 = qstyleoption_cast<const QStyleOptionViewItemV3 *>(&option);
+    opt.locale = v3 ? v3->locale : QLocale();
+    opt.widget = v3 ? v3->widget : 0;
+
+    // prepare
+    painter->save();
+    if (d->clipPainting)
+        painter->setClipRect(opt.rect);
+
+    // get the data and the rectangles
+
+    QVariant value;
+
+    QPixmap pixmap;
+    QRect decorationRect;
+    value = index.data(Qt::DecorationRole);
+    if (value.isValid()) {
+        // ### we need the pixmap to call the virtual function
+        pixmap = decoration(opt, value);
+        if (value.type() == QVariant::Icon) {
+            d->tmp.icon = qvariant_cast<QIcon>(value);
+            d->tmp.mode = d->iconMode(option.state);
+            d->tmp.state = d->iconState(option.state);
+            const QSize size = d->tmp.icon.actualSize(option.decorationSize,
+                                                      d->tmp.mode, d->tmp.state);
+            decorationRect = QRect(QPoint(0, 0), size);
+        } else {
+            d->tmp.icon = QIcon();
+            decorationRect = QRect(QPoint(0, 0), pixmap.size());
+        }
+    } else {
+        d->tmp.icon = QIcon();
+        decorationRect = QRect();
+    }
+
+    QString text;
+    QRect displayRect;
+    value = index.data(Qt::DisplayRole);
+    if (value.isValid() && !value.isNull()) {
+        text = QItemDelegatePrivate::valueToText(value, opt);
+        displayRect = textRectangle(painter, d->textLayoutBounds(opt), opt.font, text);
+    }
+
+    QRect checkRect;
+    Qt::CheckState checkState = Qt::Unchecked;
+    value = index.data(Qt::CheckStateRole);
+    if (value.isValid()) {
+        checkState = static_cast<Qt::CheckState>(value.toInt());
+        checkRect = check(opt, opt.rect, value);
+    }
+
+    // do the layout
+
+    doLayout(opt, &checkRect, &decorationRect, &displayRect, false);
+
+    // draw the item
+
+    drawBackground(painter, opt, index);
+    drawCheck(painter, opt, checkRect, checkState);
+    drawDecoration(painter, opt, decorationRect, pixmap);
+    drawDisplay(painter, opt, displayRect, text);
+    drawFocus(painter, opt, displayRect);
+
+    // done
+    painter->restore();
+}
+
+/*!
+    Returns the size needed by the delegate to display the item
+    specified by \a index, taking into account the style information
+    provided by \a option.
+
+    When reimplementing this function, note that in case of text
+    items, QItemDelegate adds a margin (i.e. 2 *
+    QStyle::PM_FocusFrameHMargin) to the length of the text.
+*/
+
+QSize QItemDelegate::sizeHint(const QStyleOptionViewItem &option,
+                              const QModelIndex &index) const
+{
+    QVariant value = index.data(Qt::SizeHintRole);
+    if (value.isValid())
+        return qvariant_cast<QSize>(value);
+    QRect decorationRect = rect(option, index, Qt::DecorationRole);
+    QRect displayRect = rect(option, index, Qt::DisplayRole);
+    QRect checkRect = rect(option, index, Qt::CheckStateRole);
+
+    doLayout(option, &checkRect, &decorationRect, &displayRect, true);
+
+    return (decorationRect|displayRect|checkRect).size();
+}
+
+/*!
+    Returns the widget used to edit the item specified by \a index
+    for editing. The \a parent widget and style \a option are used to
+    control how the editor widget appears.
+
+    \sa QAbstractItemDelegate::createEditor()
+*/
+
+QWidget *QItemDelegate::createEditor(QWidget *parent,
+                                     const QStyleOptionViewItem &,
+                                     const QModelIndex &index) const
+{
+    Q_D(const QItemDelegate);
+    if (!index.isValid())
+        return 0;
+    QVariant::Type t = static_cast<QVariant::Type>(index.data(Qt::EditRole).userType());
+    const QItemEditorFactory *factory = d->f;
+    if (factory == 0)
+        factory = QItemEditorFactory::defaultFactory();
+    return factory->createEditor(t, parent);
+}
+
+/*!
+    Sets the data to be displayed and edited by the \a editor from the
+    data model item specified by the model \a index.
+
+    The default implementation stores the data in the \a editor
+    widget's \l {Qt's Property System} {user property}.
+
+    \sa QMetaProperty::isUser()
+*/
+
+void QItemDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
+{
+#ifdef QT_NO_PROPERTIES
+    Q_UNUSED(editor);
+    Q_UNUSED(index);
+#else
+    Q_D(const QItemDelegate);
+    QVariant v = index.data(Qt::EditRole);
+    QByteArray n = editor->metaObject()->userProperty().name();
+
+    // ### Qt 5: remove
+    // A work-around for missing "USER true" in qdatetimeedit.h for
+    // QTimeEdit's time property and QDateEdit's date property.
+    // It only triggers if the default user property "dateTime" is
+    // reported for QTimeEdit and QDateEdit.
+    if (n == "dateTime") {
+        if (editor->inherits("QTimeEdit"))
+            n = "time";
+        else if (editor->inherits("QDateEdit"))
+            n = "date";
+    }
+
+    // ### Qt 5: give QComboBox a USER property
+    if (n.isEmpty() && editor->inherits("QComboBox"))
+        n = d->editorFactory()->valuePropertyName(static_cast<QVariant::Type>(v.userType()));
+    if (!n.isEmpty()) {
+        if (!v.isValid())
+            v = QVariant(editor->property(n).userType(), (const void *)0);
+        editor->setProperty(n, v);
+    }
+#endif
+}
+
+/*!
+    Gets data drom the \a editor widget and stores it in the specified
+    \a model at the item \a index.
+
+    The default implementation gets the value to be stored in the data
+    model from the \a editor widget's \l {Qt's Property System} {user
+    property}.
+
+    \sa QMetaProperty::isUser()
+*/
+
+void QItemDelegate::setModelData(QWidget *editor,
+                                 QAbstractItemModel *model,
+                                 const QModelIndex &index) const
+{
+#ifdef QT_NO_PROPERTIES
+    Q_UNUSED(model);
+    Q_UNUSED(editor);
+    Q_UNUSED(index);
+#else
+    Q_D(const QItemDelegate);
+    Q_ASSERT(model);
+    Q_ASSERT(editor);
+    QByteArray n = editor->metaObject()->userProperty().name();
+    if (n.isEmpty())
+        n = d->editorFactory()->valuePropertyName(
+            static_cast<QVariant::Type>(model->data(index, Qt::EditRole).userType()));
+    if (!n.isEmpty())
+        model->setData(index, editor->property(n), Qt::EditRole);
+#endif
+}
+
+/*!
+    Updates the \a editor for the item specified by \a index
+    according to the style \a option given.
+*/
+
+void QItemDelegate::updateEditorGeometry(QWidget *editor,
+                                         const QStyleOptionViewItem &option,
+                                         const QModelIndex &index) const
+{
+    if (!editor)
+        return;
+    Q_ASSERT(index.isValid());
+    QPixmap pixmap = decoration(option, index.data(Qt::DecorationRole));
+    QString text = QItemDelegatePrivate::replaceNewLine(index.data(Qt::DisplayRole).toString());
+    QRect pixmapRect = QRect(QPoint(0, 0), option.decorationSize).intersected(pixmap.rect());
+    QRect textRect = textRectangle(0, option.rect, option.font, text);
+    QRect checkRect = check(option, textRect, index.data(Qt::CheckStateRole));
+    QStyleOptionViewItem opt = option;
+    opt.showDecorationSelected = true; // let the editor take up all available space
+    doLayout(opt, &checkRect, &pixmapRect, &textRect, false);
+    editor->setGeometry(textRect);
+}
+
+/*!
+  Returns the editor factory used by the item delegate.
+  If no editor factory is set, the function will return null.
+
+  \sa setItemEditorFactory()
+*/
+QItemEditorFactory *QItemDelegate::itemEditorFactory() const
+{
+    Q_D(const QItemDelegate);
+    return d->f;
+}
+
+/*!
+  Sets the editor factory to be used by the item delegate to be the \a factory
+  specified. If no editor factory is set, the item delegate will use the
+  default editor factory.
+
+  \sa itemEditorFactory()
+*/
+void QItemDelegate::setItemEditorFactory(QItemEditorFactory *factory)
+{
+    Q_D(QItemDelegate);
+    d->f = factory;
+}
+
+/*!
+   Renders the item view \a text within the rectangle specified by \a rect
+   using the given \a painter and style \a option.
+*/
+
+void QItemDelegate::drawDisplay(QPainter *painter, const QStyleOptionViewItem &option,
+                                const QRect &rect, const QString &text) const
+{
+    Q_D(const QItemDelegate);
+
+    QPen pen = painter->pen();
+    QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
+                              ? QPalette::Normal : QPalette::Disabled;
+    if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
+        cg = QPalette::Inactive;
+    if (option.state & QStyle::State_Selected) {
+        painter->fillRect(rect, option.palette.brush(cg, QPalette::Highlight));
+        painter->setPen(option.palette.color(cg, QPalette::HighlightedText));
+    } else {
+        painter->setPen(option.palette.color(cg, QPalette::Text));
+    }
+
+    if (text.isEmpty())
+        return;
+
+    if (option.state & QStyle::State_Editing) {
+        painter->save();
+        painter->setPen(option.palette.color(cg, QPalette::Text));
+        painter->drawRect(rect.adjusted(0, 0, -1, -1));
+        painter->restore();
+    }
+
+    const QStyleOptionViewItemV4 opt = option;
+
+    const QWidget *widget = d->widget(option);
+    QStyle *style = widget ? widget->style() : QApplication::style();
+    const int textMargin = style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1;
+    QRect textRect = rect.adjusted(textMargin, 0, -textMargin, 0); // remove width padding
+    const bool wrapText = opt.features & QStyleOptionViewItemV2::WrapText;
+    d->textOption.setWrapMode(wrapText ? QTextOption::WordWrap : QTextOption::ManualWrap);
+    d->textOption.setTextDirection(option.direction);
+    d->textOption.setAlignment(QStyle::visualAlignment(option.direction, option.displayAlignment));
+    d->textLayout.setTextOption(d->textOption);
+    d->textLayout.setFont(option.font);
+    d->textLayout.setText(QItemDelegatePrivate::replaceNewLine(text));
+
+    QSizeF textLayoutSize = d->doTextLayout(textRect.width());
+
+    if (textRect.width() < textLayoutSize.width()
+        || textRect.height() < textLayoutSize.height()) {
+        QString elided;
+        int start = 0;
+        int end = text.indexOf(QChar::LineSeparator, start);
+        if (end == -1) {
+            elided += option.fontMetrics.elidedText(text, option.textElideMode, textRect.width());
+        } else {
+            while (end != -1) {
+                elided += option.fontMetrics.elidedText(text.mid(start, end - start),
+                                                        option.textElideMode, textRect.width());
+                elided += QChar::LineSeparator;
+                start = end + 1;
+                end = text.indexOf(QChar::LineSeparator, start);
+            }
+            //let's add the last line (after the last QChar::LineSeparator)
+            elided += option.fontMetrics.elidedText(text.mid(start),
+                                                    option.textElideMode, textRect.width());
+            if (end != -1)
+                elided += QChar::LineSeparator;
+        }
+        d->textLayout.setText(elided);
+        textLayoutSize = d->doTextLayout(textRect.width());
+    }
+
+    const QSize layoutSize(textRect.width(), int(textLayoutSize.height()));
+    const QRect layoutRect = QStyle::alignedRect(option.direction, option.displayAlignment,
+                                                  layoutSize, textRect);
+    // if we still overflow even after eliding the text, enable clipping
+    if (!hasClipping() && (textRect.width() < textLayoutSize.width()
+                           || textRect.height() < textLayoutSize.height())) {
+        painter->save();
+        painter->setClipRect(layoutRect);
+        d->textLayout.draw(painter, layoutRect.topLeft(), QVector<QTextLayout::FormatRange>(), layoutRect);
+        painter->restore();
+    } else {
+        d->textLayout.draw(painter, layoutRect.topLeft(), QVector<QTextLayout::FormatRange>(), layoutRect);
+    }
+}
+
+/*!
+    Renders the decoration \a pixmap within the rectangle specified by
+    \a rect using the given \a painter and style \a option.
+*/
+void QItemDelegate::drawDecoration(QPainter *painter, const QStyleOptionViewItem &option,
+                                   const QRect &rect, const QPixmap &pixmap) const
+{
+    Q_D(const QItemDelegate);
+    // if we have an icon, we ignore the pixmap
+    if (!d->tmp.icon.isNull()) {
+        d->tmp.icon.paint(painter, rect, option.decorationAlignment,
+                          d->tmp.mode, d->tmp.state);
+        return;
+    }
+
+    if (pixmap.isNull() || !rect.isValid())
+        return;
+    QPoint p = QStyle::alignedRect(option.direction, option.decorationAlignment,
+                                   pixmap.size(), rect).topLeft();
+    if (option.state & QStyle::State_Selected) {
+        QPixmap *pm = selected(pixmap, option.palette, option.state & QStyle::State_Enabled);
+        painter->drawPixmap(p, *pm);
+    } else {
+        painter->drawPixmap(p, pixmap);
+    }
+}
+
+/*!
+    Renders the region within the rectangle specified by \a rect, indicating
+    that it has the focus, using the given \a painter and style \a option.
+*/
+
+void QItemDelegate::drawFocus(QPainter *painter,
+                              const QStyleOptionViewItem &option,
+                              const QRect &rect) const
+{
+    Q_D(const QItemDelegate);
+    if ((option.state & QStyle::State_HasFocus) == 0 || !rect.isValid())
+        return;
+    QStyleOptionFocusRect o;
+    o.QStyleOption::operator=(option);
+    o.rect = rect;
+    o.state |= QStyle::State_KeyboardFocusChange;
+    o.state |= QStyle::State_Item;
+    QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled)
+                              ? QPalette::Normal : QPalette::Disabled;
+    o.backgroundColor = option.palette.color(cg, (option.state & QStyle::State_Selected)
+                                             ? QPalette::Highlight : QPalette::Window);
+    const QWidget *widget = d->widget(option);
+    QStyle *style = widget ? widget->style() : QApplication::style();
+    style->drawPrimitive(QStyle::PE_FrameFocusRect, &o, painter, widget);
+}
+
+/*!
+    Renders a check indicator within the rectangle specified by \a
+    rect, using the given \a painter and style \a option, using the
+    given \a state.
+*/
+
+void QItemDelegate::drawCheck(QPainter *painter,
+                              const QStyleOptionViewItem &option,
+                              const QRect &rect, Qt::CheckState state) const
+{
+    Q_D(const QItemDelegate);
+    if (!rect.isValid())
+        return;
+
+    QStyleOptionViewItem opt(option);
+    opt.rect = rect;
+    opt.state = opt.state & ~QStyle::State_HasFocus;
+
+    switch (state) {
+    case Qt::Unchecked:
+        opt.state |= QStyle::State_Off;
+        break;
+    case Qt::PartiallyChecked:
+        opt.state |= QStyle::State_NoChange;
+        break;
+    case Qt::Checked:
+        opt.state |= QStyle::State_On;
+        break;
+    }
+
+    const QWidget *widget = d->widget(option);
+    QStyle *style = widget ? widget->style() : QApplication::style();
+    style->drawPrimitive(QStyle::PE_IndicatorViewItemCheck, &opt, painter, widget);
+}
+
+/*!
+    \since 4.2
+
+    Renders the item background for the given \a index,
+    using the given \a painter and style \a option.
+*/
+
+void QItemDelegate::drawBackground(QPainter *painter,
+                                   const QStyleOptionViewItem &option,
+                                   const QModelIndex &index) const
+{
+    if (option.showDecorationSelected && (option.state & QStyle::State_Selected)) {
+        QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
+                                  ? QPalette::Normal : QPalette::Disabled;
+        if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
+            cg = QPalette::Inactive;
+
+        painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
+    } else {
+        QVariant value = index.data(Qt::BackgroundRole);
+        if (qVariantCanConvert<QBrush>(value)) {
+            QPointF oldBO = painter->brushOrigin();
+            painter->setBrushOrigin(option.rect.topLeft());
+            painter->fillRect(option.rect, qvariant_cast<QBrush>(value));
+            painter->setBrushOrigin(oldBO);
+        }
+    }
+}
+
+
+/*!
+    \internal
+*/
+
+void QItemDelegate::doLayout(const QStyleOptionViewItem &option,
+                             QRect *checkRect, QRect *pixmapRect, QRect *textRect,
+                             bool hint) const
+{
+    Q_ASSERT(checkRect && pixmapRect && textRect);
+    Q_D(const QItemDelegate);
+    const QWidget *widget = d->widget(option);
+    QStyle *style = widget ? widget->style() : QApplication::style();
+    const bool hasCheck = checkRect->isValid();
+    const bool hasPixmap = pixmapRect->isValid();
+    const bool hasText = textRect->isValid();
+    const int textMargin = hasText ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;
+    const int pixmapMargin = hasPixmap ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;
+    const int checkMargin = hasCheck ? style->pixelMetric(QStyle::PM_FocusFrameHMargin, 0, widget) + 1 : 0;
+    int x = option.rect.left();
+    int y = option.rect.top();
+    int w, h;
+
+    textRect->adjust(-textMargin, 0, textMargin, 0); // add width padding
+    if (textRect->height() == 0 && !hasPixmap)
+        textRect->setHeight(option.fontMetrics.height());
+
+    QSize pm(0, 0);
+    if (hasPixmap) {
+        pm = pixmapRect->size();
+        pm.rwidth() += 2 * pixmapMargin;
+    }
+    if (hint) {
+        h = qMax(checkRect->height(), qMax(textRect->height(), pm.height()));
+        if (option.decorationPosition == QStyleOptionViewItem::Left
+            || option.decorationPosition == QStyleOptionViewItem::Right) {
+            w = textRect->width() + pm.width();
+        } else {
+            w = qMax(textRect->width(), pm.width());
+        }
+    } else {
+        w = option.rect.width();
+        h = option.rect.height();
+    }
+
+    int cw = 0;
+    QRect check;
+    if (hasCheck) {
+        cw = checkRect->width() + 2 * checkMargin;
+        if (hint) w += cw;
+        if (option.direction == Qt::RightToLeft) {
+            check.setRect(x + w - cw, y, cw, h);
+        } else {
+            check.setRect(x + checkMargin, y, cw, h);
+        }
+    }
+
+    // at this point w should be the *total* width
+
+    QRect display;
+    QRect decoration;
+    switch (option.decorationPosition) {
+    case QStyleOptionViewItem::Top: {
+        if (hasPixmap)
+            pm.setHeight(pm.height() + pixmapMargin); // add space
+        h = hint ? textRect->height() : h - pm.height();
+
+        if (option.direction == Qt::RightToLeft) {
+            decoration.setRect(x, y, w - cw, pm.height());
+            display.setRect(x, y + pm.height(), w - cw, h);
+        } else {
+            decoration.setRect(x + cw, y, w - cw, pm.height());
+            display.setRect(x + cw, y + pm.height(), w - cw, h);
+        }
+        break; }
+    case QStyleOptionViewItem::Bottom: {
+        if (hasText)
+            textRect->setHeight(textRect->height() + textMargin); // add space
+        h = hint ? textRect->height() + pm.height() : h;
+
+        if (option.direction == Qt::RightToLeft) {
+            display.setRect(x, y, w - cw, textRect->height());
+            decoration.setRect(x, y + textRect->height(), w - cw, h - textRect->height());
+        } else {
+            display.setRect(x + cw, y, w - cw, textRect->height());
+            decoration.setRect(x + cw, y + textRect->height(), w - cw, h - textRect->height());
+        }
+        break; }
+    case QStyleOptionViewItem::Left: {
+        if (option.direction == Qt::LeftToRight) {
+            decoration.setRect(x + cw, y, pm.width(), h);
+            display.setRect(decoration.right() + 1, y, w - pm.width() - cw, h);
+        } else {
+            display.setRect(x, y, w - pm.width() - cw, h);
+            decoration.setRect(display.right() + 1, y, pm.width(), h);
+        }
+        break; }
+    case QStyleOptionViewItem::Right: {
+        if (option.direction == Qt::LeftToRight) {
+            display.setRect(x + cw, y, w - pm.width() - cw, h);
+            decoration.setRect(display.right() + 1, y, pm.width(), h);
+        } else {
+            decoration.setRect(x, y, pm.width(), h);
+            display.setRect(decoration.right() + 1, y, w - pm.width() - cw, h);
+        }
+        break; }
+    default:
+        qWarning("doLayout: decoration position is invalid");
+        decoration = *pixmapRect;
+        break;
+    }
+
+    if (!hint) { // we only need to do the internal layout if we are going to paint
+        *checkRect = QStyle::alignedRect(option.direction, Qt::AlignCenter,
+                                         checkRect->size(), check);
+        *pixmapRect = QStyle::alignedRect(option.direction, option.decorationAlignment,
+                                          pixmapRect->size(), decoration);
+        // the text takes up all available space, unless the decoration is not shown as selected
+        if (option.showDecorationSelected)
+            *textRect = display;
+        else
+            *textRect = QStyle::alignedRect(option.direction, option.displayAlignment,
+                                            textRect->size().boundedTo(display.size()), display);
+    } else {
+        *checkRect = check;
+        *pixmapRect = decoration;
+        *textRect = display;
+    }
+}
+
+/*!
+    \internal
+
+    Returns the pixmap used to decorate the root of the item view.
+    The style \a option controls the appearance of the root; the \a variant
+    refers to the data associated with an item.
+*/
+
+QPixmap QItemDelegate::decoration(const QStyleOptionViewItem &option, const QVariant &variant) const
+{
+    Q_D(const QItemDelegate);
+    switch (variant.type()) {
+    case QVariant::Icon: {
+        QIcon::Mode mode = d->iconMode(option.state);
+        QIcon::State state = d->iconState(option.state);
+        return qvariant_cast<QIcon>(variant).pixmap(option.decorationSize, mode, state); }
+    case QVariant::Color: {
+        static QPixmap pixmap(option.decorationSize);
+        pixmap.fill(qvariant_cast<QColor>(variant));
+        return pixmap; }
+    default:
+        break;
+    }
+
+    return qvariant_cast<QPixmap>(variant);
+}
+
+// hacky but faster version of "QString::sprintf("%d-%d", i, enabled)"
+static QString qPixmapSerial(quint64 i, bool enabled)
+{
+    ushort arr[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '-', '0' + enabled };
+    ushort *ptr = &arr[16];
+
+    while (i > 0) {
+        // hey - it's our internal representation, so use the ascii character after '9'
+        // instead of 'a' for hex
+        *(--ptr) = '0' + i % 16;
+        i >>= 4;
+    }
+
+    return QString::fromUtf16(ptr, int(&arr[sizeof(arr) / sizeof(ushort)] - ptr));
+}
+
+/*!
+  \internal
+  Returns the selected version of the given \a pixmap using the given \a palette.
+  The \a enabled argument decides whether the normal or disabled highlight color of
+  the palette is used.
+*/
+QPixmap *QItemDelegate::selected(const QPixmap &pixmap, const QPalette &palette, bool enabled) const
+{
+    QString key = qPixmapSerial(qt_pixmap_id(pixmap), enabled);
+    QPixmap *pm = QPixmapCache::find(key);
+    if (!pm) {
+        QImage img = pixmap.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
+
+        QColor color = palette.color(enabled ? QPalette::Normal : QPalette::Disabled,
+                                     QPalette::Highlight);
+        color.setAlphaF((qreal)0.3);
+
+        QPainter painter(&img);
+        painter.setCompositionMode(QPainter::CompositionMode_SourceAtop);
+        painter.fillRect(0, 0, img.width(), img.height(), color);
+        painter.end();
+
+        QPixmap selected = QPixmap(QPixmap::fromImage(img));
+        int n = (img.numBytes() >> 10) + 1;
+        if (QPixmapCache::cacheLimit() < n)
+            QPixmapCache::setCacheLimit(n);
+
+        QPixmapCache::insert(key, selected);
+        pm = QPixmapCache::find(key);
+    }
+    return pm;
+}
+
+/*!
+  \internal
+*/
+
+QRect QItemDelegate::rect(const QStyleOptionViewItem &option,
+                          const QModelIndex &index, int role) const
+{
+    Q_D(const QItemDelegate);
+    QVariant value = index.data(role);
+    if (role == Qt::CheckStateRole)
+        return check(option, option.rect, value);
+    if (value.isValid() && !value.isNull()) {
+        switch (value.type()) {
+        case QVariant::Invalid:
+            break;
+        case QVariant::Pixmap:
+            return QRect(QPoint(0, 0), qvariant_cast<QPixmap>(value).size());
+        case QVariant::Image:
+            return QRect(QPoint(0, 0), qvariant_cast<QImage>(value).size());
+        case QVariant::Icon: {
+            QIcon::Mode mode = d->iconMode(option.state);
+            QIcon::State state = d->iconState(option.state);
+            QIcon icon = qvariant_cast<QIcon>(value);
+            QSize size = icon.actualSize(option.decorationSize, mode, state);
+            return QRect(QPoint(0, 0), size); }
+        case QVariant::Color:
+            return QRect(QPoint(0, 0), option.decorationSize);
+        case QVariant::String:
+        default: {
+            QString text = QItemDelegatePrivate::valueToText(value, option);
+            value = index.data(Qt::FontRole);
+            QFont fnt = qvariant_cast<QFont>(value).resolve(option.font);
+            return textRectangle(0, d->textLayoutBounds(option), fnt, text); }
+        }
+    }
+    return QRect();
+}
+
+/*!
+  \internal
+
+  Note that on Mac, if /usr/include/AssertMacros.h is included prior
+  to QItemDelegate, and the application is building in debug mode, the
+  check(assertion) will conflict with QItemDelegate::check.
+
+  To avoid this problem, add
+
+  #ifdef check
+	#undef check
+  #endif
+
+  after including AssertMacros.h
+*/
+QRect QItemDelegate::check(const QStyleOptionViewItem &option,
+                           const QRect &bounding, const QVariant &value) const
+{
+    if (value.isValid()) {
+        Q_D(const QItemDelegate);
+        QStyleOptionButton opt;
+        opt.QStyleOption::operator=(option);
+        opt.rect = bounding;
+        const QWidget *widget = d->widget(option); // cast
+        QStyle *style = widget ? widget->style() : QApplication::style();
+        return style->subElementRect(QStyle::SE_ViewItemCheckIndicator, &opt, widget);
+    }
+    return QRect();
+}
+
+/*!
+  \internal
+*/
+QRect QItemDelegate::textRectangle(QPainter * /*painter*/, const QRect &rect,
+                                   const QFont &font, const QString &text) const
+{
+    Q_D(const QItemDelegate);
+    d->textOption.setWrapMode(QTextOption::WordWrap);
+    d->textLayout.setTextOption(d->textOption);
+    d->textLayout.setFont(font);
+    d->textLayout.setText(QItemDelegatePrivate::replaceNewLine(text));
+    const QSize size = d->doTextLayout(rect.width()).toSize();
+    // ###: textRectangle should take style option as argument
+    const int textMargin = QApplication::style()->pixelMetric(QStyle::PM_FocusFrameHMargin) + 1;
+    return QRect(0, 0, size.width() + 2 * textMargin, size.height());
+}
+
+/*!
+    \fn bool QItemDelegate::eventFilter(QObject *editor, QEvent *event)
+
+    Returns true if the given \a editor is a valid QWidget and the
+    given \a event is handled; otherwise returns false. The following
+    key press events are handled by default:
+
+    \list
+        \o \gui Tab
+        \o \gui Backtab
+        \o \gui Enter
+        \o \gui Return
+        \o \gui Esc
+    \endlist
+
+    In the case of \gui Tab, \gui Backtab, \gui Enter and \gui Return
+    key press events, the \a editor's data is comitted to the model
+    and the editor is closed. If the \a event is a \gui Tab key press
+    the view will open an editor on the next item in the
+    view. Likewise, if the \a event is a \gui Backtab key press the
+    view will open an editor on the \e previous item in the view.
+
+    If the event is a \gui Esc key press event, the \a editor is
+    closed \e without committing its data.
+
+    \sa commitData(), closeEditor()
+*/
+
+bool QItemDelegate::eventFilter(QObject *object, QEvent *event)
+{
+    QWidget *editor = qobject_cast<QWidget*>(object);
+    if (!editor)
+        return false;
+    if (event->type() == QEvent::KeyPress) {
+        switch (static_cast<QKeyEvent *>(event)->key()) {
+        case Qt::Key_Tab:
+            emit commitData(editor);
+            emit closeEditor(editor, QAbstractItemDelegate::EditNextItem);
+            return true;
+        case Qt::Key_Backtab:
+            emit commitData(editor);
+            emit closeEditor(editor, QAbstractItemDelegate::EditPreviousItem);
+            return true;
+        case Qt::Key_Enter:
+        case Qt::Key_Return:
+#ifndef QT_NO_TEXTEDIT
+            if (qobject_cast<QTextEdit*>(editor))
+                return false; // don't filter enter key events for QTextEdit
+            // We want the editor to be able to process the key press
+            // before committing the data (e.g. so it can do
+            // validation/fixup of the input).
+#endif // QT_NO_TEXTEDIT
+#ifndef QT_NO_LINEEDIT
+            if (QLineEdit *e = qobject_cast<QLineEdit*>(editor))
+                if (!e->hasAcceptableInput())
+                    return false;
+#endif // QT_NO_LINEEDIT
+            QMetaObject::invokeMethod(this, "_q_commitDataAndCloseEditor",
+                                      Qt::QueuedConnection, Q_ARG(QWidget*, editor));
+            return false;
+        case Qt::Key_Escape:
+            // don't commit data
+            emit closeEditor(editor, QAbstractItemDelegate::RevertModelCache);
+            break;
+        default:
+            return false;
+        }
+        if (editor->parentWidget())
+            editor->parentWidget()->setFocus();
+        return true;
+    } else if (event->type() == QEvent::FocusOut || event->type() == QEvent::Hide) {
+        //the Hide event will take care of he editors that are in fact complete dialogs
+        if (!editor->isActiveWindow() || (QApplication::focusWidget() != editor)) {
+            QWidget *w = QApplication::focusWidget();
+            while (w) { // don't worry about focus changes internally in the editor
+                if (w == editor)
+                    return false;
+                w = w->parentWidget();
+            }
+#ifndef QT_NO_DRAGANDDROP
+            // The window may lose focus during an drag operation.
+            // i.e when dragging involves the taskbar on Windows.
+            if (QDragManager::self() && QDragManager::self()->object != 0)
+                return false;
+#endif
+            // Opening a modal dialog will start a new eventloop
+            // that will process the deleteLater event.
+            if (QApplication::activeModalWidget()
+                && !QApplication::activeModalWidget()->isAncestorOf(editor)
+                && qobject_cast<QDialog*>(QApplication::activeModalWidget()))
+                return false;
+            emit commitData(editor);
+            emit closeEditor(editor, NoHint);
+        }
+    } else if (event->type() == QEvent::ShortcutOverride) {
+        if (static_cast<QKeyEvent*>(event)->key() == Qt::Key_Escape) {
+            event->accept();
+            return true;
+        }
+    }
+    return false;
+}
+
+/*!
+  \reimp
+*/
+
+bool QItemDelegate::editorEvent(QEvent *event,
+                                QAbstractItemModel *model,
+                                const QStyleOptionViewItem &option,
+                                const QModelIndex &index)
+{
+    Q_ASSERT(event);
+    Q_ASSERT(model);
+
+    // make sure that the item is checkable
+    Qt::ItemFlags flags = model->flags(index);
+    if (!(flags & Qt::ItemIsUserCheckable) || !(option.state & QStyle::State_Enabled)
+        || !(flags & Qt::ItemIsEnabled))
+        return false;
+
+    // make sure that we have a check state
+    QVariant value = index.data(Qt::CheckStateRole);
+    if (!value.isValid())
+        return false;
+
+    // make sure that we have the right event type
+    if ((event->type() == QEvent::MouseButtonRelease)
+        || (event->type() == QEvent::MouseButtonDblClick)) {
+        QRect checkRect = check(option, option.rect, Qt::Checked);
+        QRect emptyRect;
+        doLayout(option, &checkRect, &emptyRect, &emptyRect, false);
+        QMouseEvent *me = static_cast<QMouseEvent*>(event);
+        if (me->button() != Qt::LeftButton || !checkRect.contains(me->pos()))
+            return false;
+
+        // eat the double click events inside the check rect
+        if (event->type() == QEvent::MouseButtonDblClick)
+            return true;
+
+    } else if (event->type() == QEvent::KeyPress) {
+        if (static_cast<QKeyEvent*>(event)->key() != Qt::Key_Space
+         && static_cast<QKeyEvent*>(event)->key() != Qt::Key_Select)
+            return false;
+    } else {
+        return false;
+    }
+
+    Qt::CheckState state = (static_cast<Qt::CheckState>(value.toInt()) == Qt::Checked
+                            ? Qt::Unchecked : Qt::Checked);
+    return model->setData(index, state, Qt::CheckStateRole);
+}
+
+/*!
+  \internal
+*/
+
+QStyleOptionViewItem QItemDelegate::setOptions(const QModelIndex &index,
+                                               const QStyleOptionViewItem &option) const
+{
+    QStyleOptionViewItem opt = option;
+
+    // set font
+    QVariant value = index.data(Qt::FontRole);
+    if (value.isValid()){
+        opt.font = qvariant_cast<QFont>(value).resolve(opt.font);
+        opt.fontMetrics = QFontMetrics(opt.font);
+    }
+
+    // set text alignment
+    value = index.data(Qt::TextAlignmentRole);
+    if (value.isValid())
+        opt.displayAlignment = (Qt::Alignment)value.toInt();
+
+    // set foreground brush
+    value = index.data(Qt::ForegroundRole);
+    if (qVariantCanConvert<QBrush>(value))
+        opt.palette.setBrush(QPalette::Text, qvariant_cast<QBrush>(value));
+
+    return opt;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qitemdelegate.cpp"
+
+#endif // QT_NO_ITEMVIEWS