1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
|
