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Diffstat (limited to 'src/widgets/platforms/mac/qfontengine_coretext_p.h')
-rw-r--r-- | src/widgets/platforms/mac/qfontengine_coretext_p.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/widgets/platforms/mac/qfontengine_coretext_p.h b/src/widgets/platforms/mac/qfontengine_coretext_p.h new file mode 100644 index 0000000000..3775bc6002 --- /dev/null +++ b/src/widgets/platforms/mac/qfontengine_coretext_p.h @@ -0,0 +1,146 @@ +/**************************************************************************** +** +** 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_CORETEXT_P_H +#define QFONTENGINE_CORETEXT_P_H + +#include <private/qfontengine_p.h> + +#if !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) + +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; + qreal ctMaxCharWidth; + qreal ctMinLeftBearing; + qreal ctMinRightBearing; + friend class QCoreTextFontEngineMulti; +}; + +class QCoreTextFontEngineMulti : public QFontEngineMulti +{ +public: + QCoreTextFontEngineMulti(const QCFString &name, const QFontDef &fontDef, bool kerning); + QCoreTextFontEngineMulti(CGFontRef cgFontRef, 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; +}; + +#endif// !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) + +#endif // QFONTENGINE_CORETEXT_P_H |