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// 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 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_MACOS
#include <ApplicationServices/ApplicationServices.h>
#else
#include <CoreText/CoreText.h>
#include <CoreGraphics/CoreGraphics.h>
#endif
QT_BEGIN_NAMESPACE
class Q_GUI_EXPORT 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(glyph_t glyph) override;
QFixed capHeight() 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 supportsHorizontalSubPixelPositions() const override { return true; }
bool supportsVerticalSubPixelPositions() const override { return false; }
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, const QFixedPoint &subPixelPosition) override;
QImage alphaMapForGlyph(glyph_t glyph, const QFixedPoint &subPixelPosition, const QTransform &t) override;
QImage alphaRGBMapForGlyph(glyph_t, const QFixedPoint &subPixelPosition, const QTransform &t) override;
glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, const QFixedPoint &, const QTransform &matrix, GlyphFormat) override;
QImage bitmapForGlyph(glyph_t, const QFixedPoint &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, const QFixedPoint &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;
void initializeHeightMetrics() const override;
QCFType<CTFontRef> ctfont;
QCFType<CGFontRef> cgFont;
int synthesisFlags;
CGAffineTransform transform;
QFixed avgCharWidth;
QFixed underlineThickness;
QFixed underlinePos;
QFontEngine::FaceId face_id;
mutable bool kerningPairsLoaded;
};
CGAffineTransform Q_GUI_EXPORT qt_transform_from_fontdef(const QFontDef &fontDef);
QT_END_NAMESPACE
#endif // QFONTENGINE_CORETEXT_P_H
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