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| |
| #ifndef QFONTENGINE_CORETEXT_P_H |
| #define QFONTENGINE_CORETEXT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <private/qfontengine_p.h> |
| #include <private/qcore_mac_p.h> |
| #include <QtCore/qloggingcategory.h> |
| |
| #ifdef Q_OS_OSX |
| #include <ApplicationServices/ApplicationServices.h> |
| #else |
| #include <CoreText/CoreText.h> |
| #include <CoreGraphics/CoreGraphics.h> |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_DECLARE_LOGGING_CATEGORY(lcQpaFonts) |
| |
| class QCoreTextFontEngine : public QFontEngine |
| { |
| Q_GADGET |
| |
| public: |
| QCoreTextFontEngine(CTFontRef font, const QFontDef &def); |
| QCoreTextFontEngine(CGFontRef font, const QFontDef &def); |
| ~QCoreTextFontEngine(); |
| |
| glyph_t glyphIndex(uint ucs4) const override; |
| bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const override; |
| void recalcAdvances(QGlyphLayout *, ShaperFlags) const override; |
| |
| glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) override; |
| glyph_metrics_t boundingBox(glyph_t glyph) override; |
| |
| QFixed ascent() const override; |
| QFixed capHeight() const override; |
| QFixed descent() const override; |
| QFixed leading() const override; |
| QFixed xHeight() const override; |
| qreal maxCharWidth() const override; |
| QFixed averageCharWidth() const override; |
| |
| void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs, |
| QPainterPath *path, QTextItem::RenderFlags) override; |
| |
| bool canRender(const QChar *string, int len) const override; |
| |
| int synthesized() const override { return synthesisFlags; } |
| bool supportsSubPixelPositions() const override { return true; } |
| |
| QFixed lineThickness() const override; |
| QFixed underlinePosition() const override; |
| |
| void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight); |
| |
| FaceId faceId() const override; |
| bool getSfntTableData(uint /*tag*/, uchar * /*buffer*/, uint * /*length*/) const override; |
| void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) override; |
| QImage alphaMapForGlyph(glyph_t, QFixed subPixelPosition) override; |
| QImage alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &t) override; |
| QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t) override; |
| glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, QFixed, const QTransform &matrix, GlyphFormat) override; |
| QImage bitmapForGlyph(glyph_t, QFixed subPixelPosition, const QTransform &t, const QColor &color) override; |
| QFixed emSquareSize() const override; |
| void doKerning(QGlyphLayout *g, ShaperFlags flags) const override; |
| |
| bool supportsTransformation(const QTransform &transform) const override; |
| bool expectsGammaCorrectedBlending() const override; |
| |
| QFontEngine *cloneWithSize(qreal pixelSize) const override; |
| Qt::HANDLE handle() const override; |
| int glyphMargin(QFontEngine::GlyphFormat format) override { Q_UNUSED(format); return 0; } |
| |
| QFontEngine::Properties properties() const override; |
| |
| enum FontSmoothing { Disabled, Subpixel, Grayscale }; |
| Q_ENUM(FontSmoothing); |
| |
| static FontSmoothing fontSmoothing(); |
| static qreal fontSmoothingGamma(); |
| |
| static bool ct_getSfntTable(void *user_data, uint tag, uchar *buffer, uint *length); |
| static QFont::Weight qtWeightFromCFWeight(float value); |
| |
| static QCoreTextFontEngine *create(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference); |
| |
| protected: |
| QCoreTextFontEngine(const QFontDef &def); |
| void init(); |
| QImage imageForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &m, const QColor &color = QColor()); |
| void loadAdvancesForGlyphs(QVarLengthArray<CGGlyph> &cgGlyphs, QGlyphLayout *glyphs) const; |
| bool hasColorGlyphs() const; |
| bool shouldAntialias() const; |
| bool shouldSmoothFont() const; |
| |
| QCFType<CTFontRef> ctfont; |
| QCFType<CGFontRef> cgFont; |
| int synthesisFlags; |
| CGAffineTransform transform; |
| QFixed avgCharWidth; |
| QFixed underlineThickness; |
| QFixed underlinePos; |
| QFontEngine::FaceId face_id; |
| mutable bool kerningPairsLoaded; |
| }; |
| |
| CGAffineTransform qt_transform_from_fontdef(const QFontDef &fontDef); |
| |
| QT_END_NAMESPACE |
| |
| #endif // QFONTENGINE_CORETEXT_P_H |