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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFONTENGINE_MAC_P_H
#define QFONTENGINE_MAC_P_H
#include <private/qfontengine_p.h>
#ifndef QT_MAC_USE_COCOA
class QFontEngineMacMulti;
class QFontEngineMac : public QFontEngine
{
friend class QFontEngineMacMulti;
public:
QFontEngineMac(ATSUStyle baseStyle, ATSUFontID fontID, const QFontDef &def, QFontEngineMacMulti *multiEngine = 0);
virtual ~QFontEngineMac();
virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *numGlyphs, QTextEngine::ShaperFlags flags) const;
virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
virtual glyph_metrics_t boundingBox(glyph_t glyph);
virtual QFixed ascent() const;
virtual QFixed descent() const;
virtual QFixed leading() const;
virtual QFixed xHeight() const;
virtual qreal maxCharWidth() const;
virtual QFixed averageCharWidth() const;
virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs,
QPainterPath *path, QTextItem::RenderFlags);
virtual const char *name() const { return "QFontEngineMac"; }
virtual bool canRender(const QChar *string, int len);
virtual int synthesized() const { return synthesisFlags; }
virtual Type type() const { return QFontEngine::Mac; }
void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight);
virtual FaceId faceId() const;
virtual QByteArray getSfntTable(uint tag) const;
virtual Properties properties() const;
virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
virtual QImage alphaMapForGlyph(glyph_t);
virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
private:
QImage imageForGlyph(glyph_t glyph, int margin, bool colorful);
ATSUFontID fontID;
QCFType<CGFontRef> cgFont;
ATSUStyle style;
int synthesisFlags;
mutable QGlyphLayout kashidaGlyph;
QFontEngineMacMulti *multiEngine;
mutable const unsigned char *cmap;
mutable bool symbolCMap;
mutable QByteArray cmapTable;
CGAffineTransform transform;
QFixed m_ascent;
QFixed m_descent;
QFixed m_leading;
qreal m_maxCharWidth;
QFixed m_xHeight;
QFixed m_averageCharWidth;
};
class QFontEngineMacMulti : public QFontEngineMulti
{
friend class QFontEngineMac;
public:
// internal
struct ShaperItem
{
inline ShaperItem() : string(0), from(0), length(0),
log_clusters(0), charAttributes(0) {}
const QChar *string;
int from;
int length;
QGlyphLayout glyphs;
unsigned short *log_clusters;
const HB_CharAttributes *charAttributes;
QTextEngine::ShaperFlags flags;
};
QFontEngineMacMulti(const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning);
virtual ~QFontEngineMacMulti();
virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags,
unsigned short *logClusters, const HB_CharAttributes *charAttributes, QScriptItem *) const;
virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
virtual void doKerning(QGlyphLayout *, QTextEngine::ShaperFlags) const;
virtual const char *name() const { return "ATSUI"; }
virtual bool canRender(const QChar *string, int len);
inline ATSUFontID macFontID() const { return fontID; }
protected:
virtual void loadEngine(int at);
private:
inline const QFontEngineMac *engineAt(int i) const
{ return static_cast<const QFontEngineMac *>(engines.at(i)); }
bool stringToCMapInternal(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags, ShaperItem *item) const;
int fontIndexForFontID(ATSUFontID id) const;
ATSUFontID fontID;
uint kerning : 1;
mutable ATSUTextLayout textLayout;
mutable ATSUStyle style;
CGAffineTransform transform;
};
#endif //!QT_MAC_USE_COCOA
#endif // QFONTENGINE_MAC_P_H
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