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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module 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 QFONTENGINE_CORETEXT_P_H
#define QFONTENGINE_CORETEXT_P_H
#include <private/qfontengine_p.h>
#ifdef QT_NO_CORESERVICES
#include <CoreText/CoreText.h>
#include <CoreGraphics/CoreGraphics.h>
#include <private/qcore_mac_p.h>
#endif
#if !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QRawFontPrivate;
class QCoreTextFontEngineMulti;
class QCoreTextFontEngine : public QFontEngine
{
public:
QCoreTextFontEngine(CTFontRef font, const QFontDef &def);
QCoreTextFontEngine(CGFontRef font, const QFontDef &def);
~QCoreTextFontEngine();
virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, 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 "QCoreTextFontEngine"; }
virtual bool canRender(const QChar *string, int len);
virtual int synthesized() const { return synthesisFlags; }
virtual bool supportsSubPixelPositions() const { return true; }
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 bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const;
virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
virtual QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition);
virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);
virtual qreal minRightBearing() const;
virtual qreal minLeftBearing() const;
virtual QFixed emSquareSize() const;
virtual QFontEngine *cloneWithSize(qreal pixelSize) const;
private:
friend class QRawFontPrivate;
void init();
QImage imageForGlyph(glyph_t glyph, QFixed subPixelPosition, int margin, bool colorful);
CTFontRef ctfont;
CGFontRef cgFont;
int synthesisFlags;
CGAffineTransform transform;
QFixed avgCharWidth;
friend class QCoreTextFontEngineMulti;
};
class QCoreTextFontEngineMulti : public QFontEngineMulti
{
public:
QCoreTextFontEngineMulti(const QCFString &name, const QFontDef &fontDef, bool kerning);
QCoreTextFontEngineMulti(CTFontRef ctFontRef, const QFontDef &fontDef, bool kerning);
~QCoreTextFontEngineMulti();
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 *si) const;
virtual const char *name() const { return "CoreText"; }
inline CTFontRef macFontID() const { return ctfont; }
protected:
virtual void loadEngine(int at);
private:
void init(bool kerning);
inline const QCoreTextFontEngine *engineAt(int i) const
{ return static_cast<const QCoreTextFontEngine *>(engines.at(i)); }
uint fontIndexForFont(CTFontRef font) const;
CTFontRef ctfont;
mutable QCFType<CFMutableDictionaryRef> attributeDict;
CGAffineTransform transform;
friend class QFontDialogPrivate;
bool transformAdvances;
};
CGAffineTransform qt_transform_from_fontdef(const QFontDef &fontDef);
QT_END_NAMESPACE
QT_END_HEADER
#endif// !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5)
#endif // QFONTENGINE_CORETEXT_P_H
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