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
177
178
179
180
181
182
183
184
185
186
|
/****************************************************************************
**
** 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 QWINDOWSFONTENGINE_H
#define QWINDOWSFONTENGINE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/private/qfontengine_p.h>
#include <QtGui/QImage>
#include <QtCore/QSharedPointer>
#include <QtCore/QMetaType>
#include <QtCore/qt_windows.h>
QT_BEGIN_NAMESPACE
class QWindowsNativeImage;
class QWindowsFontEngineData;
class QWindowsFontEngine : public QFontEngine
{
friend class QWindowsMultiFontEngine;
public:
QWindowsFontEngine(const QString &name, LOGFONT lf,
const QSharedPointer<QWindowsFontEngineData> &fontEngineData);
~QWindowsFontEngine();
void initFontInfo(const QFontDef &request,
int dpi);
QFixed lineThickness() const Q_DECL_OVERRIDE;
Properties properties() const Q_DECL_OVERRIDE;
void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) Q_DECL_OVERRIDE;
FaceId faceId() const Q_DECL_OVERRIDE;
bool getSfntTableData(uint tag, uchar *buffer, uint *length) const Q_DECL_OVERRIDE;
int synthesized() const Q_DECL_OVERRIDE;
QFixed emSquareSize() const Q_DECL_OVERRIDE;
glyph_t glyphIndex(uint ucs4) const Q_DECL_OVERRIDE;
bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const Q_DECL_OVERRIDE;
void recalcAdvances(QGlyphLayout *glyphs, ShaperFlags) const Q_DECL_OVERRIDE;
void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs,
QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE;
HGDIOBJ selectDesignFont() const;
glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) Q_DECL_OVERRIDE;
glyph_metrics_t boundingBox(glyph_t g) Q_DECL_OVERRIDE { return boundingBox(g, QTransform()); }
glyph_metrics_t boundingBox(glyph_t g, const QTransform &t) Q_DECL_OVERRIDE;
QFixed ascent() const Q_DECL_OVERRIDE;
QFixed descent() const Q_DECL_OVERRIDE;
QFixed leading() const Q_DECL_OVERRIDE;
QFixed xHeight() const Q_DECL_OVERRIDE;
QFixed averageCharWidth() const Q_DECL_OVERRIDE;
qreal maxCharWidth() const Q_DECL_OVERRIDE;
qreal minLeftBearing() const Q_DECL_OVERRIDE;
qreal minRightBearing() const Q_DECL_OVERRIDE;
QImage alphaMapForGlyph(glyph_t t) Q_DECL_OVERRIDE { return alphaMapForGlyph(t, QTransform()); }
QImage alphaMapForGlyph(glyph_t, const QTransform &xform) Q_DECL_OVERRIDE;
QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, const QTransform &xform) Q_DECL_OVERRIDE;
glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, QFixed, const QTransform &matrix, GlyphFormat) Q_DECL_OVERRIDE;
QFontEngine *cloneWithSize(qreal pixelSize) const Q_DECL_OVERRIDE;
Qt::HANDLE handle() const Q_DECL_OVERRIDE;
bool supportsTransformation(const QTransform &transform) const Q_DECL_OVERRIDE;
#ifndef Q_CC_MINGW
void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) Q_DECL_OVERRIDE;
#endif
bool hasUnreliableGlyphOutline() const Q_DECL_OVERRIDE;
int getGlyphIndexes(const QChar *ch, int numChars, QGlyphLayout *glyphs) const;
void getCMap();
bool getOutlineMetrics(glyph_t glyph, const QTransform &t, glyph_metrics_t *metrics) const;
const QSharedPointer<QWindowsFontEngineData> &fontEngineData() const { return m_fontEngineData; }
void setUniqueFamilyName(const QString &newName) { uniqueFamilyName = newName; }
private:
QWindowsNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform,
QImage::Format mask_format);
bool hasCFFTable() const;
bool hasCMapTable() const;
bool hasGlyfTable() const;
bool hasEbdtTable() const;
const QSharedPointer<QWindowsFontEngineData> m_fontEngineData;
const QString _name;
QString uniqueFamilyName;
HFONT hfont;
const LOGFONT m_logfont;
uint ttf : 1;
uint hasOutline : 1;
uint hasUnreliableOutline : 1;
uint cffTable : 1;
TEXTMETRIC tm;
const unsigned char *cmap;
int cmapSize;
QByteArray cmapTable;
mutable qreal lbearing;
mutable qreal rbearing;
QFixed designToDevice;
int unitsPerEm;
QFixed x_height;
FaceId _faceId;
mutable int synthesized_flags;
mutable QFixed lineWidth;
mutable unsigned char *widthCache;
mutable uint widthCacheSize;
mutable QFixed *designAdvances;
mutable int designAdvancesSize;
};
class QWindowsMultiFontEngine : public QFontEngineMulti
{
public:
explicit QWindowsMultiFontEngine(QFontEngine *fe, int script);
QFontEngine *loadEngine(int at) Q_DECL_OVERRIDE;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(HFONT)
Q_DECLARE_METATYPE(LOGFONT)
#endif // QWINDOWSFONTENGINE_H
|
