Long live Qt 4.5!

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diff --git a/src/gui/styles/qcommonstyle_p.h b/src/gui/styles/qcommonstyle_p.h
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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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOMMONSTYLE_P_H
+#define QCOMMONSTYLE_P_H
+
+#include "qcommonstyle.h"
+#include "qstyle_p.h"
+
+#include "qstyleoption.h"
+
+QT_BEGIN_NAMESPACE
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+class QStringList;
+
+#ifdef Q_WS_X11
+class QIconTheme
+{
+public:
+    QIconTheme(QHash <int, QString> dirList, QStringList parents) :
+          _dirList(dirList), _parents(parents), _valid(true){ }
+    QIconTheme() : _valid(false){ }
+
+    QHash <int, QString> dirList() {return _dirList;}
+    QStringList parents() {return _parents;}
+    bool isValid() {return _valid;}
+
+private:
+    QHash <int, QString> _dirList;
+    QStringList _parents;
+    bool _valid;
+};
+#endif
+
+// Private class
+class QCommonStylePrivate : public QStylePrivate
+{
+    Q_DECLARE_PUBLIC(QCommonStyle)
+public:
+    inline QCommonStylePrivate()
+#ifndef QT_NO_ITEMVIEWS
+    : cachedOption(0)
+#endif
+    { }
+
+#ifndef QT_NO_ITEMVIEWS
+    ~QCommonStylePrivate()
+    {
+        delete cachedOption;
+    }
+    void viewItemDrawText(QPainter *p, const QStyleOptionViewItemV4 *option, const QRect &rect) const;
+    void viewItemLayout(const QStyleOptionViewItemV4 *opt,  QRect *checkRect,
+                        QRect *pixmapRect, QRect *textRect, bool sizehint) const;
+    QSize viewItemSize(const QStyleOptionViewItemV4 *option, int role) const;
+
+    mutable QRect decorationRect, displayRect, checkRect;
+    mutable QStyleOptionViewItemV4 *cachedOption;
+    bool isViewItemCached(const QStyleOptionViewItemV4 &option) const {
+        return cachedOption && (option.rect == cachedOption->rect
+               && option.direction == cachedOption->direction
+               && option.state == cachedOption->state
+               && option.displayAlignment == cachedOption->displayAlignment
+               && option.decorationAlignment == cachedOption->decorationAlignment
+               && option.decorationPosition == cachedOption->decorationPosition
+               && option.decorationSize == cachedOption->decorationSize
+               && option.font == cachedOption->font
+               && option.features == cachedOption->features
+               && option.widget == cachedOption->widget
+               && option.index == cachedOption->index
+               && option.icon.isNull() == cachedOption->icon.isNull()
+               && option.text == cachedOption->text
+               && option.viewItemPosition == cachedOption->viewItemPosition);
+    }
+#endif
+    mutable QIcon tabBarcloseButtonIcon;
+
+//icon detection on X11
+#ifdef Q_WS_X11
+    void lookupIconTheme() const;
+    QIcon createIcon(const QString &) const;
+    QPixmap findIcon(int size, const QString &) const;
+    QPixmap findIconHelper(int size, const QString &, const QString &, QStringList &visited) const;
+    QIconTheme parseIndexFile(const QString &themeName) const;
+    mutable QString themeName;
+    mutable QStringList iconDirs;
+    mutable QHash <QString, QIconTheme> themeList;
+#endif
+
+};
+
+QT_END_NAMESPACE
+
+#endif //QCOMMONSTYLE_P_H