Long live Qt 4.5!

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diff --git a/src/gui/dialogs/qwizard_win_p.h b/src/gui/dialogs/qwizard_win_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 QWIZARD_WIN_P_H
+#define QWIZARD_WIN_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QT_NO_WIZARD
+#ifndef QT_NO_STYLE_WINDOWSVISTA
+
+#include <windows.h>
+#include <qobject.h>
+#include <qwidget.h>
+#include <qabstractbutton.h>
+#include <QtGui/private/qwidget_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QVistaBackButton : public QAbstractButton
+{
+public:
+    QVistaBackButton(QWidget *widget);
+
+    QSize sizeHint() const;
+    inline QSize minimumSizeHint() const
+    { return sizeHint(); }
+
+    void enterEvent(QEvent *event);
+    void leaveEvent(QEvent *event);
+    void paintEvent(QPaintEvent *event);
+};
+
+class QWizard;
+
+class QVistaHelper : public QObject
+{
+    Q_OBJECT
+public:
+    QVistaHelper(QWizard *wizard);
+    ~QVistaHelper();
+    enum TitleBarChangeType { NormalTitleBar, ExtendedTitleBar };
+    bool setDWMTitleBar(TitleBarChangeType type);
+    void setTitleBarIconAndCaptionVisible(bool visible);
+    void mouseEvent(QEvent *event);
+    bool handleWinEvent(MSG *message, long *result);
+    void resizeEvent(QResizeEvent *event);
+    void paintEvent(QPaintEvent *event);
+    QVistaBackButton *backButton() const { return backButton_; }
+    void setWindowPosHack();
+    QColor basicWindowFrameColor();
+    enum VistaState { VistaAero, VistaBasic, Classic, Dirty };
+    static VistaState vistaState();
+    static int titleBarSize() { return frameSize() + captionSize(); }
+    static int topPadding() { return 8; }
+    static int topOffset() { return titleBarSize() + (vistaState() == VistaAero ? 13 : 3); }
+
+private:
+    static HFONT getCaptionFont(HANDLE hTheme);
+    bool drawTitleText(QPainter *painter, const QString &text, const QRect &rect, HDC hdc);
+    static bool drawBlackRect(const QRect &rect, HDC hdc);
+
+    static int frameSize() { return GetSystemMetrics(SM_CYSIZEFRAME); }
+    static int captionSize() { return GetSystemMetrics(SM_CYCAPTION); }
+
+    static int backButtonSize() { return 31; } // ### should be queried from back button itself
+    static int iconSize() { return 16; } // Standard Aero
+    static int padding() { return 7; } // Standard Aero
+    static int leftMargin() { return backButtonSize() + padding(); }
+    static int glowSize() { return 10; }
+
+    int titleOffset();
+    bool resolveSymbols();
+    void drawTitleBar(QPainter *painter);
+    void setMouseCursor(QPoint pos);
+    void collapseTopFrameStrut();
+    bool winEvent(MSG *message, long *result);
+    void mouseMoveEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event);
+    void mouseReleaseEvent(QMouseEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event);
+
+    static bool is_vista;
+    static VistaState cachedVistaState;
+    static bool isCompositionEnabled();
+    static bool isThemeActive();
+    enum Changes { resizeTop, movePosition, noChange } change;
+    QPoint pressedPos;
+    bool pressed;
+    QRect rtTop;
+    QRect rtTitle;
+    QWizard *wizard;
+    QVistaBackButton *backButton_;
+};
+
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_STYLE_WINDOWSVISTA
+#endif // QT_NO_WIZARD
+#endif // QWIZARD_WIN_P_H