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| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
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| ** This file is part of the QtGui module of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #ifndef QRAWFONT_H |
| #define QRAWFONT_H |
| |
| #include <QtCore/qstring.h> |
| #include <QtCore/qiodevice.h> |
| #include <QtCore/qglobal.h> |
| #include <QtCore/qobject.h> |
| #include <QtCore/qpoint.h> |
| #include <QtGui/qfont.h> |
| #include <QtGui/qtransform.h> |
| #include <QtGui/qfontdatabase.h> |
| |
| #if !defined(QT_NO_RAWFONT) |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QRawFontPrivate; |
| class Q_GUI_EXPORT QRawFont |
| { |
| public: |
| enum AntialiasingType { |
| PixelAntialiasing, |
| SubPixelAntialiasing |
| }; |
| |
| enum LayoutFlag { |
| SeparateAdvances = 0, |
| KernedAdvances = 1, |
| UseDesignMetrics = 2 |
| }; |
| Q_DECLARE_FLAGS(LayoutFlags, LayoutFlag) |
| |
| QRawFont(); |
| QRawFont(const QString &fileName, |
| qreal pixelSize, |
| QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting); |
| QRawFont(const QByteArray &fontData, |
| qreal pixelSize, |
| QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting); |
| QRawFont(const QRawFont &other); |
| ~QRawFont(); |
| |
| bool isValid() const; |
| |
| QRawFont &operator=(const QRawFont &other); |
| |
| void swap(QRawFont &other) { qSwap(d, other.d); } |
| |
| bool operator==(const QRawFont &other) const; |
| inline bool operator!=(const QRawFont &other) const |
| { return !operator==(other); } |
| |
| QString familyName() const; |
| QString styleName() const; |
| |
| QFont::Style style() const; |
| int weight() const; |
| |
| QVector<quint32> glyphIndexesForString(const QString &text) const; |
| inline QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const; |
| inline QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes, LayoutFlags layoutFlags) const; |
| bool glyphIndexesForChars(const QChar *chars, int numChars, quint32 *glyphIndexes, int *numGlyphs) const; |
| bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs) const; |
| bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs, LayoutFlags layoutFlags) const; |
| |
| QImage alphaMapForGlyph(quint32 glyphIndex, |
| AntialiasingType antialiasingType = SubPixelAntialiasing, |
| const QTransform &transform = QTransform()) const; |
| QPainterPath pathForGlyph(quint32 glyphIndex) const; |
| QRectF boundingRect(quint32 glyphIndex) const; |
| |
| void setPixelSize(qreal pixelSize); |
| qreal pixelSize() const; |
| |
| QFont::HintingPreference hintingPreference() const; |
| |
| qreal ascent() const; |
| qreal descent() const; |
| qreal leading() const; |
| qreal xHeight() const; |
| qreal averageCharWidth() const; |
| qreal maxCharWidth() const; |
| qreal lineThickness() const; |
| qreal underlinePosition() const; |
| |
| qreal unitsPerEm() const; |
| |
| void loadFromFile(const QString &fileName, |
| qreal pixelSize, |
| QFont::HintingPreference hintingPreference); |
| |
| void loadFromData(const QByteArray &fontData, |
| qreal pixelSize, |
| QFont::HintingPreference hintingPreference); |
| |
| bool supportsCharacter(uint ucs4) const; |
| bool supportsCharacter(QChar character) const; |
| QList<QFontDatabase::WritingSystem> supportedWritingSystems() const; |
| |
| QByteArray fontTable(const char *tagName) const; |
| |
| static QRawFont fromFont(const QFont &font, |
| QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any); |
| |
| private: |
| friend class QRawFontPrivate; |
| friend class QTextLayout; |
| friend class QTextEngine; |
| |
| QExplicitlySharedDataPointer<QRawFontPrivate> d; |
| }; |
| |
| Q_DECLARE_SHARED(QRawFont) |
| |
| Q_DECLARE_OPERATORS_FOR_FLAGS(QRawFont::LayoutFlags) |
| |
| inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes, QRawFont::LayoutFlags layoutFlags) const |
| { |
| QVector<QPointF> advances(glyphIndexes.size()); |
| if (advancesForGlyphIndexes(glyphIndexes.constData(), advances.data(), glyphIndexes.size(), layoutFlags)) |
| return advances; |
| return QVector<QPointF>(); |
| } |
| |
| inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const |
| { |
| return advancesForGlyphIndexes(glyphIndexes, QRawFont::SeparateAdvances); |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_RAWFONT |
| |
| #endif // QRAWFONT_H |