File: qfontengine_mac_p.h

package info (click to toggle)
qt4-x11 4:4.8.7+dfsg-18
  • links: PTS, VCS
  • area: main
  • in suites: buster, sid
  • size: 749,772 kB
  • sloc: cpp: 2,694,360; ansic: 384,353; python: 25,859; sh: 19,554; xml: 17,092; perl: 14,767; yacc: 5,383; asm: 5,038; makefile: 1,258; lex: 555; ruby: 526; objc: 347; cs: 112; pascal: 112; php: 54; sed: 34
file content (172 lines) | stat: -rw-r--r-- 6,406 bytes parent folder | download | duplicates (2)
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
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company 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 QFONTENGINE_MAC_P_H
#define QFONTENGINE_MAC_P_H

#include <private/qfontengine_p.h>

#ifndef QT_MAC_USE_COCOA

QT_BEGIN_NAMESPACE

class QFontEngineMacMulti;
class QFontEngineMac : public QFontEngine
{
    friend class QFontEngineMacMulti;
public:
    QFontEngineMac(ATSUStyle baseStyle, ATSUFontID fontID, const QFontDef &def, QFontEngineMacMulti *multiEngine = 0);
    virtual ~QFontEngineMac();

    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *numGlyphs, QTextEngine::ShaperFlags flags) const;
    virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;

    virtual glyph_metrics_t boundingBox(const QGlyphLayout &glyphs);
    virtual glyph_metrics_t boundingBox(glyph_t glyph);

    virtual QFixed ascent() const;
    virtual QFixed descent() const;
    virtual QFixed leading() const;
    virtual QFixed xHeight() const;
    virtual qreal maxCharWidth() const;
    virtual QFixed averageCharWidth() const;

    virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs,
                                 QPainterPath *path, QTextItem::RenderFlags);

    virtual const char *name() const { return "QFontEngineMac"; }

    virtual bool canRender(const QChar *string, int len);

    virtual int synthesized() const { return synthesisFlags; }

    virtual Type type() const { return QFontEngine::Mac; }

    void draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight);

    virtual FaceId faceId() const;
    virtual QByteArray getSfntTable(uint tag) const;
    virtual Properties properties() const;
    virtual void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics);
    virtual QImage alphaMapForGlyph(glyph_t);
    virtual QImage alphaRGBMapForGlyph(glyph_t, QFixed subPixelPosition, int margin, const QTransform &t);

private:
    QImage imageForGlyph(glyph_t glyph, int margin, bool colorful);

    ATSUFontID fontID;
    QCFType<CGFontRef> cgFont;
    ATSUStyle style;
    int synthesisFlags;
    mutable QGlyphLayout kashidaGlyph;
    QFontEngineMacMulti *multiEngine;
    mutable const unsigned char *cmap;
    mutable bool symbolCMap;
    mutable QByteArray cmapTable;
    CGAffineTransform transform;
    QFixed m_ascent;
    QFixed m_descent;
    QFixed m_leading;
    qreal m_maxCharWidth;
    QFixed m_xHeight;
    QFixed m_averageCharWidth;
    mutable int cmapSize;
};

class QFontEngineMacMulti : public QFontEngineMulti
{
    friend class QFontEngineMac;
public:
    // internal
    struct ShaperItem
    {
        inline ShaperItem() : string(0), from(0), length(0),
        log_clusters(0), charAttributes(0) {}

        const QChar *string;
        int from;
        int length;
        QGlyphLayout glyphs;
        unsigned short *log_clusters;
        const HB_CharAttributes *charAttributes;
        QTextEngine::ShaperFlags flags;
    };

    QFontEngineMacMulti(const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning);
    virtual ~QFontEngineMacMulti();

    virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const;
    bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags,
                      unsigned short *logClusters, const HB_CharAttributes *charAttributes, QScriptItem *) const;

    virtual void recalcAdvances(QGlyphLayout *, QTextEngine::ShaperFlags) const;
    virtual void doKerning(QGlyphLayout *, QTextEngine::ShaperFlags) const;

    virtual const char *name() const { return "ATSUI"; }

    virtual bool canRender(const QChar *string, int len);

    inline ATSUFontID macFontID() const { return fontID; }

protected:
    virtual void loadEngine(int at);

private:
    inline const QFontEngineMac *engineAt(int i) const
    { return static_cast<const QFontEngineMac *>(engines.at(i)); }

    bool stringToCMapInternal(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags, ShaperItem *item) const;

    int fontIndexForFontID(ATSUFontID id) const;

    ATSUFontID fontID;
    uint kerning : 1;

    mutable ATSUTextLayout textLayout;
    mutable ATSUStyle style;
    CGAffineTransform transform;
};

QT_END_NAMESPACE

#endif //!QT_MAC_USE_COCOA

#endif // QFONTENGINE_MAC_P_H