qstatictext_p.h - mozsearch

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#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 <QtGui/private/qtguiglobal_p.h>

#include "qstatictext.h"

#include <private/qtextureglyphcache_p.h>

#include <QtGui/qcolor.h>

QT_BEGIN_NAMESPACE

class Q_GUI_EXPORT QStaticTextUserData

public:

    enum Type {

        NoUserData,

        OpenGLUserData

};

    QStaticTextUserData(Type t) : ref(0), type(t) {}

    virtual ~QStaticTextUserData();

    QAtomicInt ref;

    Type type;

};

class Q_GUI_EXPORT QStaticTextItem

public:

    QStaticTextItem() : useBackendOptimizations(false),

                        userDataNeedsUpdate(0), usesRawFont(0),

                        m_fontEngine(nullptr), m_userData(nullptr) {}

    void setUserData(QStaticTextUserData *newUserData)

        m_userData = newUserData;

    QStaticTextUserData *userData() const { return m_userData.data(); }

    void setFontEngine(QFontEngine *fe)

        m_fontEngine = fe;

    QFontEngine *fontEngine() const { return m_fontEngine.data(); }

    union {

        QFixedPoint *glyphPositions;             // 8 bytes per glyph

        int positionOffset;

};

    union {

        glyph_t *glyphs;                         // 4 bytes per glyph

        int glyphOffset;

};

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

                                                 // 12 bytes per glyph

                                                 // 8 bytes for pointers

    int numGlyphs;                               // 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;                //

    char usesRawFont : 1;                        //

private: // private to avoid abuse

    QExplicitlySharedDataPointer<QFontEngine> m_fontEngine;       // 4 bytes per item

    QExplicitlySharedDataPointer<QStaticTextUserData> m_userData; // 8 bytes per item

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

                                                                  // 43 bytes per item

};

Q_DECLARE_TYPEINFO(QStaticTextItem, Q_RELOCATABLE_TYPE);

class QStaticText;

class Q_AUTOTEST_EXPORT QStaticTextPrivate

public:

    QStaticTextPrivate();

    QStaticTextPrivate(const QStaticTextPrivate &other);

    ~QStaticTextPrivate();

    void init();

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

    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

    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;

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

                                         // 191 bytes per text

    static QStaticTextPrivate *get(const QStaticText *q);

};

QT_END_NAMESPACE

#endif // QSTATICTEXT_P_H