qsgopenvgfontglyphcache.h

Enable keyboard shortcuts

// 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 QSGOPENVGFONTGLYPHCACHE_H

#define QSGOPENVGFONTGLYPHCACHE_H

#include <QtGui/QGlyphRun>

#include <QtCore/QSet>

#include <VG/openvg.h>

QT_BEGIN_NAMESPACE

class QSGOpenVGFontGlyphCache;

class QSGOpenVGFontGlyphCacheManager

public:

    QSGOpenVGFontGlyphCacheManager();

    ~QSGOpenVGFontGlyphCacheManager();

    QSGOpenVGFontGlyphCache *cache(const QRawFont &font);

    void insertCache(const QRawFont &font, QSGOpenVGFontGlyphCache *cache);

private:

    QHash<QRawFont, QSGOpenVGFontGlyphCache *> m_caches;

};

class QSGOpenVGFontGlyphCache

public:

    QSGOpenVGFontGlyphCache(QSGOpenVGFontGlyphCacheManager *manager, const QRawFont &font);

    ~QSGOpenVGFontGlyphCache();

    const QSGOpenVGFontGlyphCacheManager *manager() const { return m_manager; }

    const QRawFont &referenceFont() const { return m_referenceFont; }

    int glyphCount() const { return m_glyphCount; }

    void populate(const QList<quint32> &glyphs);

    void release(const QList<quint32> &glyphs);

    VGFont font() { return m_font; }

private:

    void requestGlyphs(const QSet<quint32> &glyphs);

    void referenceGlyphs(const QSet<quint32> &glyphs);

    void releaseGlyphs(const QSet<quint32> &glyphs);

    QSGOpenVGFontGlyphCacheManager *m_manager;

    QRawFont m_referenceFont;

    int m_glyphCount;

    VGFont m_font;

    QHash<quint32, int> m_glyphReferences;

};

QT_END_NAMESPACE

#endif // QSGOPENVGFONTGLYPHCACHE_H