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39 | |
40 | #ifndef QRAWFONT_H |
41 | #define QRAWFONT_H |
42 | |
43 | #include <QtGui/qtguiglobal.h> |
44 | #include <QtCore/qstring.h> |
45 | #include <QtCore/qiodevice.h> |
46 | #include <QtCore/qglobal.h> |
47 | #include <QtCore/qobject.h> |
48 | #include <QtCore/qpoint.h> |
49 | #include <QtGui/qfont.h> |
50 | #include <QtGui/qtransform.h> |
51 | #include <QtGui/qfontdatabase.h> |
52 | |
53 | #if !defined(QT_NO_RAWFONT) |
54 | |
55 | QT_BEGIN_NAMESPACE |
56 | |
57 | |
58 | class QRawFontPrivate; |
59 | class Q_GUI_EXPORT QRawFont |
60 | { |
61 | public: |
62 | enum AntialiasingType { |
63 | PixelAntialiasing, |
64 | SubPixelAntialiasing |
65 | }; |
66 | |
67 | enum LayoutFlag { |
68 | SeparateAdvances = 0, |
69 | KernedAdvances = 1, |
70 | UseDesignMetrics = 2 |
71 | }; |
72 | Q_DECLARE_FLAGS(LayoutFlags, LayoutFlag) |
73 | |
74 | QRawFont(); |
75 | QRawFont(const QString &fileName, |
76 | qreal pixelSize, |
77 | QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting); |
78 | QRawFont(const QByteArray &fontData, |
79 | qreal pixelSize, |
80 | QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting); |
81 | QRawFont(const QRawFont &other); |
82 | QRawFont &operator=(QRawFont &&other) noexcept { swap(other); return *this; } |
83 | QRawFont &operator=(const QRawFont &other); |
84 | ~QRawFont(); |
85 | |
86 | void swap(QRawFont &other) noexcept { qSwap(value1&: d, value2&: other.d); } |
87 | |
88 | bool isValid() const; |
89 | |
90 | bool operator==(const QRawFont &other) const; |
91 | inline bool operator!=(const QRawFont &other) const |
92 | { return !operator==(other); } |
93 | |
94 | QString familyName() const; |
95 | QString styleName() const; |
96 | |
97 | QFont::Style style() const; |
98 | int weight() const; |
99 | |
100 | QVector<quint32> glyphIndexesForString(const QString &text) const; |
101 | inline QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const; |
102 | inline QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes, LayoutFlags layoutFlags) const; |
103 | bool glyphIndexesForChars(const QChar *chars, int numChars, quint32 *glyphIndexes, int *numGlyphs) const; |
104 | bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs) const; |
105 | bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs, LayoutFlags layoutFlags) const; |
106 | |
107 | QImage alphaMapForGlyph(quint32 glyphIndex, |
108 | AntialiasingType antialiasingType = SubPixelAntialiasing, |
109 | const QTransform &transform = QTransform()) const; |
110 | QPainterPath pathForGlyph(quint32 glyphIndex) const; |
111 | QRectF boundingRect(quint32 glyphIndex) const; |
112 | |
113 | void setPixelSize(qreal pixelSize); |
114 | qreal pixelSize() const; |
115 | |
116 | QFont::HintingPreference hintingPreference() const; |
117 | |
118 | qreal ascent() const; |
119 | qreal capHeight() const; |
120 | qreal descent() const; |
121 | qreal leading() const; |
122 | qreal xHeight() const; |
123 | qreal averageCharWidth() const; |
124 | qreal maxCharWidth() const; |
125 | qreal lineThickness() const; |
126 | qreal underlinePosition() const; |
127 | |
128 | qreal unitsPerEm() const; |
129 | |
130 | void loadFromFile(const QString &fileName, |
131 | qreal pixelSize, |
132 | QFont::HintingPreference hintingPreference); |
133 | |
134 | void loadFromData(const QByteArray &fontData, |
135 | qreal pixelSize, |
136 | QFont::HintingPreference hintingPreference); |
137 | |
138 | bool supportsCharacter(uint ucs4) const; |
139 | bool supportsCharacter(QChar character) const; |
140 | QList<QFontDatabase::WritingSystem> supportedWritingSystems() const; |
141 | |
142 | QByteArray fontTable(const char *tagName) const; |
143 | |
144 | static QRawFont fromFont(const QFont &font, |
145 | QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any); |
146 | |
147 | private: |
148 | friend class QRawFontPrivate; |
149 | friend class QTextLayout; |
150 | friend class QTextEngine; |
151 | |
152 | QExplicitlySharedDataPointer<QRawFontPrivate> d; |
153 | }; |
154 | |
155 | Q_DECLARE_SHARED(QRawFont) |
156 | |
157 | Q_DECLARE_OPERATORS_FOR_FLAGS(QRawFont::LayoutFlags) |
158 | |
159 | Q_GUI_EXPORT uint qHash(const QRawFont &font, uint seed = 0) noexcept; |
160 | |
161 | inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes, QRawFont::LayoutFlags layoutFlags) const |
162 | { |
163 | QVector<QPointF> advances(glyphIndexes.size()); |
164 | if (advancesForGlyphIndexes(glyphIndexes: glyphIndexes.constData(), advances: advances.data(), numGlyphs: glyphIndexes.size(), layoutFlags)) |
165 | return advances; |
166 | return QVector<QPointF>(); |
167 | } |
168 | |
169 | inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const |
170 | { |
171 | return advancesForGlyphIndexes(glyphIndexes, layoutFlags: QRawFont::SeparateAdvances); |
172 | } |
173 | |
174 | QT_END_NAMESPACE |
175 | |
176 | #endif // QT_NO_RAWFONT |
177 | |
178 | #endif // QRAWFONT_H |
179 | |