summaryrefslogtreecommitdiffstats
path: root/src/gui/text/qrawfont.h
blob: 96dc838ede0292e93f8d8c323e38186fea3dcbad (plain)
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
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QRawFontPrivate;
class Q_GUI_EXPORT QRawFont
{
public:
    enum AntialiasingType {
        PixelAntialiasing,
        SubPixelAntialiasing
    };

    QRawFont();
    QRawFont(const QString &fileName,
             int pixelSize,
             QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);
    QRawFont(const QByteArray &fontData,
             int pixelSize,
             QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);
    QRawFont(const QRawFont &other);
    ~QRawFont();

    bool isValid() const;

    QRawFont &operator=(const QRawFont &other);
    bool operator==(const QRawFont &other) const;

    QString familyName() const;

    QFont::Style style() const;
    int weight() const;

    QVector<quint32> glyphIndexesForString(const QString &text) const;
    QVector<QPointF> advancesForGlyphIndexes(const QVector<quint32> &glyphIndexes) const;

    QImage alphaMapForGlyph(quint32 glyphIndex,
                            AntialiasingType antialiasingType = SubPixelAntialiasing,
                            const QTransform &transform = QTransform()) const;
    QPainterPath pathForGlyph(quint32 glyphIndex) const;

    void setPixelSize(int pixelSize);
    int pixelSize() const;

    QFont::HintingPreference hintingPreference() const;

    qreal ascent() const;
    qreal descent() const;

    qreal unitsPerEm() const;

    void loadFromFile(const QString &fileName,
                      int pixelSize,
                      QFont::HintingPreference hintingPreference);

    void loadFromData(const QByteArray &fontData,
                      int pixelSize,
                      QFont::HintingPreference hintingPreference);

    bool supportsCharacter(quint32 ucs4) const;
    bool supportsCharacter(const 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;

    void detach();

    QExplicitlySharedDataPointer<QRawFontPrivate> d;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QT_NO_RAWFONT

#endif // QRAWFONT_H