Long live Qt 4.5!

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diff --git a/src/gui/text/qabstractfontengine_qws.h b/src/gui/text/qabstractfontengine_qws.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 QABSTRACTFONTENGINE_QWS_H
+#define QABSTRACTFONTENGINE_QWS_H
+
+#include <QtCore/qobject.h>
+#include <QtCore/qhash.h>
+#include <QtCore/qvariant.h>
+#include <QtCore/qfactoryinterface.h>
+#include <QtGui/qpaintengine.h>
+#include <QtGui/qfontdatabase.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QFontEngineInfoPrivate;
+
+class Q_GUI_EXPORT QFontEngineInfo
+{
+public:
+    QDOC_PROPERTY(QString family READ family WRITE setFamily)
+    QDOC_PROPERTY(qreal pixelSize READ pixelSize WRITE setPixelSize)
+    QDOC_PROPERTY(int weight READ weight WRITE setWeight)
+    QDOC_PROPERTY(QFont::Style style READ style WRITE setStyle)
+    QDOC_PROPERTY(QList<QFontDatabase::WritingSystem> writingSystems READ writingSystems WRITE setWritingSystems)
+
+    QFontEngineInfo();
+    explicit QFontEngineInfo(const QString &family);
+    QFontEngineInfo(const QFontEngineInfo &other);
+    QFontEngineInfo &operator=(const QFontEngineInfo &other);
+    ~QFontEngineInfo();
+
+    void setFamily(const QString &name);
+    QString family() const;
+
+    void setPixelSize(qreal size);
+    qreal pixelSize() const;
+
+    void setWeight(int weight);
+    int weight() const;
+
+    void setStyle(QFont::Style style);
+    QFont::Style style() const;
+
+    QList<QFontDatabase::WritingSystem> writingSystems() const;
+    void setWritingSystems(const QList<QFontDatabase::WritingSystem> &writingSystems);
+
+private:
+    QFontEngineInfoPrivate *d;
+};
+
+class QAbstractFontEngine;
+
+struct Q_GUI_EXPORT QFontEngineFactoryInterface : public QFactoryInterface
+{
+     virtual QAbstractFontEngine *create(const QFontEngineInfo &info) = 0;
+     virtual QList<QFontEngineInfo> availableFontEngines() const = 0;
+};
+
+#define QFontEngineFactoryInterface_iid "com.trolltech.Qt.QFontEngineFactoryInterface"
+Q_DECLARE_INTERFACE(QFontEngineFactoryInterface, QFontEngineFactoryInterface_iid)
+
+class QFontEnginePluginPrivate;
+
+class Q_GUI_EXPORT QFontEnginePlugin : public QObject, public QFontEngineFactoryInterface
+{
+    Q_OBJECT
+    Q_INTERFACES(QFontEngineFactoryInterface:QFactoryInterface)
+public:
+    QFontEnginePlugin(const QString &foundry, QObject *parent = 0);
+    ~QFontEnginePlugin();
+
+    virtual QStringList keys() const;
+
+    virtual QAbstractFontEngine *create(const QFontEngineInfo &info) = 0;
+    virtual QList<QFontEngineInfo> availableFontEngines() const = 0;
+
+private:
+    Q_DECLARE_PRIVATE(QFontEnginePlugin)
+    Q_DISABLE_COPY(QFontEnginePlugin)
+};
+
+class QAbstractFontEnginePrivate;
+
+class Q_GUI_EXPORT QAbstractFontEngine : public QObject
+{
+    Q_OBJECT
+public:
+    enum Capability {
+        CanOutlineGlyphs = 1,
+        CanRenderGlyphs_Mono = 2,
+        CanRenderGlyphs_Gray = 4,
+        CanRenderGlyphs = CanRenderGlyphs_Mono | CanRenderGlyphs_Gray
+    };
+    Q_DECLARE_FLAGS(Capabilities, Capability)
+
+    explicit QAbstractFontEngine(QObject *parent = 0);
+    ~QAbstractFontEngine();
+
+    typedef int Fixed; // 26.6
+
+    struct FixedPoint
+    {
+        Fixed x;
+        Fixed y;
+    };
+
+    struct GlyphMetrics
+    {
+        inline GlyphMetrics()
+            : x(0), y(0), width(0), height(0),
+              advance(0) {}
+        Fixed x;
+        Fixed y;
+        Fixed width;
+        Fixed height;
+        Fixed advance;
+    };
+
+    enum FontProperty {
+        Ascent,
+        Descent,
+        Leading,
+        XHeight,
+        AverageCharWidth,
+        LineThickness,
+        UnderlinePosition,
+        MaxCharWidth,
+        MinLeftBearing,
+        MinRightBearing,
+        GlyphCount,
+
+        // hints
+        CacheGlyphsHint,
+        OutlineGlyphsHint
+    };
+
+    // keep in sync with QTextEngine::ShaperFlag!!
+    enum TextShapingFlag {
+        RightToLeft         = 0x0001,
+        ReturnDesignMetrics = 0x0002
+    };
+    Q_DECLARE_FLAGS(TextShapingFlags, TextShapingFlag)
+
+    virtual Capabilities capabilities() const = 0;
+    virtual QVariant fontProperty(FontProperty property) const = 0;
+
+    virtual bool convertStringToGlyphIndices(const QChar *string, int length, uint *glyphs, int *numGlyphs, TextShapingFlags flags) const = 0;
+
+    virtual void getGlyphAdvances(const uint *glyphs, int numGlyphs, Fixed *advances, TextShapingFlags flags) const = 0;
+
+    virtual GlyphMetrics glyphMetrics(uint glyph) const = 0;
+
+    virtual bool renderGlyph(uint glyph, int depth, int bytesPerLine, int height, uchar *buffer);
+
+    virtual void addGlyphOutlinesToPath(uint *glyphs, int numGlyphs, FixedPoint *positions, QPainterPath *path);
+
+    /*
+    enum Extension {
+        GetTrueTypeTable
+    };
+
+    virtual bool supportsExtension(Extension extension) const;
+    virtual QVariant extension(Extension extension, const QVariant &argument = QVariant());
+    */
+
+private:
+    Q_DECLARE_PRIVATE(QAbstractFontEngine)
+    Q_DISABLE_COPY(QAbstractFontEngine)
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractFontEngine::Capabilities)
+Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractFontEngine::TextShapingFlags)
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif