/****************************************************************************

**

** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the test suite of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** GNU Lesser General Public License Usage

** 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 1.1, 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.

**

** Other Usage

** Alternatively, this file may be used in accordance with the terms and

** conditions contained in a signed written agreement between you and Nokia.

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QSTATICTEXT_P_H

#define QSTATICTEXT_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of internal files.  This header file may change from version to version

// without notice, or even be removed.

//

// We mean it.

//

#include "qstatictext.h"

#include <private/qtextureglyphcache_p.h>

#include <QtGui/qcolor.h>

QT_BEGIN_NAMESPACE

class QStaticTextUserData

{

public:

    enum Type {

        NoUserData,

        OpenGLUserData

    };

    QStaticTextUserData(Type t) : type(t) { ref = 0; }

    virtual ~QStaticTextUserData() {}

    QAtomicInt ref;

    Type type;

};

class Q_GUI_EXPORT QStaticTextItem

{

public:    

    QStaticTextItem() : chars(0), numChars(0), useBackendOptimizations(false),

                        userDataNeedsUpdate(0), m_fontEngine(0), m_userData(0) {}

    QStaticTextItem(const QStaticTextItem &other)

    {

        operator=(other);

    }

    void operator=(const QStaticTextItem &other)

    {

        glyphPositions = other.glyphPositions;

        glyphs = other.glyphs;

        chars = other.chars;

        numGlyphs = other.numGlyphs;

        numChars = other.numChars;

        font = other.font;

        color = other.color;

        useBackendOptimizations = other.useBackendOptimizations;

        userDataNeedsUpdate = other.userDataNeedsUpdate;

        m_fontEngine = 0;

        m_userData = 0;

        setUserData(other.userData());

        setFontEngine(other.fontEngine());

    }

    ~QStaticTextItem();

    void setUserData(QStaticTextUserData *newUserData)

    {

        if (m_userData == newUserData)

            return;

        if (m_userData != 0 && !m_userData->ref.deref())

            delete m_userData;

        m_userData = newUserData;

        if (m_userData != 0)

            m_userData->ref.ref();

    }

    QStaticTextUserData *userData() const { return m_userData; }

    void setFontEngine(QFontEngine *fe);

    QFontEngine *fontEngine() const { return m_fontEngine; }

    union {

        QFixedPoint *glyphPositions;             // 8 bytes per glyph

        int positionOffset;

    };

    union {

        glyph_t *glyphs;                         // 4 bytes per glyph

        int glyphOffset;

    };

    union {

        QChar *chars;                            // 2 bytes per glyph

        int charOffset;

    };

                                                 // =================

                                                 // 14 bytes per glyph

                                                 // 12 bytes for pointers

    int numGlyphs;                               // 4 bytes per item

    int numChars;                                // 4 bytes per item

    QFont font;                                  // 8 bytes per item

    QColor color;                                // 10 bytes per item

    char useBackendOptimizations : 1;            // 1 byte per item

    char userDataNeedsUpdate : 1;                //

                                                 // ================

                                                 // 51 bytes per item

private: // Needs special handling in setters, so private to avoid abuse

    QFontEngine *m_fontEngine;                     // 4 bytes per item

    QStaticTextUserData *m_userData;               // 8 bytes per item

};

class QStaticText;

class Q_AUTOTEST_EXPORT QStaticTextPrivate

{

public:

    QStaticTextPrivate();

    QStaticTextPrivate(const QStaticTextPrivate &other);

    ~QStaticTextPrivate();

    void init();

    void paintText(const QPointF &pos, QPainter *p);

    void invalidate()

    {

        needsRelayout = true;

    }

    QAtomicInt ref;                      // 4 bytes per text

    QString text;                        // 4 bytes per text

    QFont font;                          // 8 bytes per text

    qreal textWidth;                     // 8 bytes per text

    QSizeF actualSize;                   // 16 bytes per text

    QPointF position;                    // 16 bytes per text

    QTransform matrix;                   // 80 bytes per text

    QStaticTextItem *items;              // 4 bytes per text

    int itemCount;                       // 4 bytes per text

    glyph_t *glyphPool;                  // 4 bytes per text

    QFixedPoint *positionPool;           // 4 bytes per text

    QChar *charPool;                     // 4 bytes per text

    QTextOption textOption;              // 28 bytes per text

    unsigned char needsRelayout            : 1; // 1 byte per text

    unsigned char useBackendOptimizations  : 1;

    unsigned char textFormat               : 2;

    unsigned char untransformedCoordinates : 1;

                                         // ================

                                         // 195 bytes per text

    static QStaticTextPrivate *get(const QStaticText *q);

};

QT_END_NAMESPACE

#endif // QSTATICTEXT_P_H