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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QRAWFONT_H
#define QRAWFONT_H
#include <QtGui/qtguiglobal.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);
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QRawFont)
QRawFont &operator=(const QRawFont &other);
~QRawFont();
void swap(QRawFont &other) noexcept { d.swap(other.d); }
bool isValid() const;
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;
QList<quint32> glyphIndexesForString(const QString &text) const;
inline QList<QPointF> advancesForGlyphIndexes(const QList<quint32> &glyphIndexes) const;
inline QList<QPointF> advancesForGlyphIndexes(const QList<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 capHeight() 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)
Q_GUI_EXPORT size_t qHash(const QRawFont &font, size_t seed = 0) noexcept;
inline QList<QPointF> QRawFont::advancesForGlyphIndexes(const QList<quint32> &glyphIndexes,
QRawFont::LayoutFlags layoutFlags) const
{
QList<QPointF> advances(glyphIndexes.size());
if (advancesForGlyphIndexes(glyphIndexes.constData(), advances.data(), glyphIndexes.size(), layoutFlags))
return advances;
return QList<QPointF>();
}
inline QList<QPointF> QRawFont::advancesForGlyphIndexes(const QList<quint32> &glyphIndexes) const
{
return advancesForGlyphIndexes(glyphIndexes, QRawFont::SeparateAdvances);
}
QT_END_NAMESPACE
#endif // QT_NO_RAWFONT
#endif // QRAWFONT_H
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