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3 ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
6 ** This file is part of the QtGui module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
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17 ** GNU Lesser General Public License Usage
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22 ** ensure the GNU Lesser General Public License version 2.1 requirements
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27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
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33 ** packaging of this file. Please review the following information to
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40 ****************************************************************************/
45 #include <QtCore/qstring.h>
46 #include <QtCore/qiodevice.h>
47 #include <QtCore/qglobal.h>
48 #include <QtCore/qobject.h>
49 #include <QtCore/qpoint.h>
50 #include <QtGui/qfont.h>
51 #include <QtGui/qtransform.h>
52 #include <QtGui/qfontdatabase.h>
54 #if !defined(QT_NO_RAWFONT)
61 class QRawFontPrivate;
62 class Q_GUI_EXPORT QRawFont
65 enum AntialiasingType {
71 QRawFont(const QString &fileName,
73 QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);
74 QRawFont(const QByteArray &fontData,
76 QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);
77 QRawFont(const QRawFont &other);
82 QRawFont &operator=(const QRawFont &other);
84 void swap(QRawFont &other) { qSwap(d, other.d); }
86 bool operator==(const QRawFont &other) const;
87 inline bool operator!=(const QRawFont &other) const
88 { return !operator==(other); }
90 QString familyName() const;
91 QString styleName() const;
93 QFont::Style style() const;
96 QVector<quint32> glyphIndexesForString(const QString &text) const;
97 inline QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const;
98 bool glyphIndexesForChars(const QChar *chars, int numChars, quint32 *glyphIndexes, int *numGlyphs) const;
99 bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs) const;
101 QImage alphaMapForGlyph(quint32 glyphIndex,
102 AntialiasingType antialiasingType = SubPixelAntialiasing,
103 const QTransform &transform = QTransform()) const;
104 QPainterPath pathForGlyph(quint32 glyphIndex) const;
105 QRectF boundingRect(quint32 glyphIndex) const;
107 void setPixelSize(qreal pixelSize);
108 qreal pixelSize() const;
110 QFont::HintingPreference hintingPreference() const;
112 qreal ascent() const;
113 qreal descent() const;
114 qreal leading() const;
115 qreal xHeight() const;
116 qreal averageCharWidth() const;
117 qreal maxCharWidth() const;
118 qreal lineThickness() const;
119 qreal underlinePosition() const;
121 qreal unitsPerEm() const;
123 void loadFromFile(const QString &fileName,
125 QFont::HintingPreference hintingPreference);
127 void loadFromData(const QByteArray &fontData,
129 QFont::HintingPreference hintingPreference);
131 bool supportsCharacter(uint ucs4) const;
132 bool supportsCharacter(QChar character) const;
133 QList<QFontDatabase::WritingSystem> supportedWritingSystems() const;
135 QByteArray fontTable(const char *tagName) const;
137 static QRawFont fromFont(const QFont &font,
138 QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any);
141 friend class QRawFontPrivate;
142 friend class QTextLayout;
143 friend class QTextEngine;
145 QExplicitlySharedDataPointer<QRawFontPrivate> d;
148 Q_DECLARE_SHARED(QRawFont)
150 inline QVector<QPointF> QRawFont::advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const
152 QVector<QPointF> advances(glyphIndexes.size());
153 if (advancesForGlyphIndexes(glyphIndexes.constData(), advances.data(), glyphIndexes.size()))
155 return QVector<QPointF>();
162 #endif // QT_NO_RAWFONT