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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
#include "qplatformfontdatabase_qpa.h"
#include <QtGui/private/qfontengine_p.h>
#include <QtGui/private/qfontengine_qpa_p.h>
#include <QtCore/QLibraryInfo>
#include <QtCore/QDir>
QT_BEGIN_NAMESPACE
extern void qt_registerFont(const QString &familyname, const QString &foundryname, int weight,
QFont::Style style, int stretch, bool antialiased,bool scalable, int pixelSize,
const QSupportedWritingSystems &writingSystems, void *hanlde);
void QPlatformFontDatabase::registerQPF2Font(const QByteArray &dataArray, void *handle)
{
if (dataArray.size() == 0)
return;
const uchar *data = reinterpret_cast<const uchar *>(dataArray.constData());
if (QFontEngineQPA::verifyHeader(data, dataArray.size())) {
QString fontName = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_FontName).toString();
int pixelSize = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_PixelSize).toInt();
QVariant weight = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_Weight);
QVariant style = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_Style);
QByteArray writingSystemBits = QFontEngineQPA::extractHeaderField(data, QFontEngineQPA::Tag_WritingSystems).toByteArray();
if (!fontName.isEmpty() && pixelSize) {
int fontWeight = 50;
if (weight.type() == QVariant::Int || weight.type() == QVariant::UInt)
fontWeight = weight.toInt();
QFont::Style fontStyle = static_cast<QFont::Style>(style.toInt());
QSupportedWritingSystems writingSystems;
for (int i = 0; i < writingSystemBits.count(); ++i) {
uchar currentByte = writingSystemBits.at(i);
for (int j = 0; j < 8; ++j) {
if (currentByte & 1)
writingSystems.setSupported(QFontDatabase::WritingSystem(i * 8 + j));
currentByte >>= 1;
}
}
registerFont(fontName,QString(),fontWeight,fontStyle,100,true,false,pixelSize,writingSystems,handle);
}
} else {
qDebug() << "header verification of QPF2 font failed. maybe it is corrupt?";
}
}
void QPlatformFontDatabase::registerFont(const QString &familyname, const QString &foundryname, int weight,
QFont::Style style, int stretch, bool antialiased, bool scalable, int pixelSize,
const QSupportedWritingSystems &writingSystems, void *usrPtr)
{
if (scalable)
pixelSize = 0;
qt_registerFont(familyname,foundryname,weight,style,stretch,antialiased,scalable,pixelSize,writingSystems,usrPtr);
}
class QWritingSystemsPrivate
{
public:
QWritingSystemsPrivate()
: ref(1)
, vector(QFontDatabase::WritingSystemsCount,false)
{
}
QWritingSystemsPrivate(const QWritingSystemsPrivate *other)
: ref(1)
, vector(other->vector)
{
}
QAtomicInt ref;
QVector<bool> vector;
};
QSupportedWritingSystems::QSupportedWritingSystems()
{
d = new QWritingSystemsPrivate;
}
QSupportedWritingSystems::QSupportedWritingSystems(const QSupportedWritingSystems &other)
{
d = other.d;
d->ref.ref();
}
QSupportedWritingSystems &QSupportedWritingSystems::operator=(const QSupportedWritingSystems &other)
{
if (d != other.d) {
other.d->ref.ref();
if (!d->ref.deref())
delete d;
d = other.d;
}
return *this;
}
QSupportedWritingSystems::~QSupportedWritingSystems()
{
if (!d->ref.deref())
delete d;
}
void QSupportedWritingSystems::detach()
{
if (d->ref != 1) {
QWritingSystemsPrivate *newd = new QWritingSystemsPrivate(d);
if (!d->ref.deref())
delete d;
d = newd;
}
}
void QSupportedWritingSystems::setSupported(QFontDatabase::WritingSystem writingSystem, bool support)
{
detach();
d->vector[writingSystem] = support;
}
bool QSupportedWritingSystems::supported(QFontDatabase::WritingSystem writingSystem) const
{
return d->vector.at(writingSystem);
}
void QPlatformFontDatabase::populateFontDatabase()
{
QString fontpath = fontDir();
if(!QFile::exists(fontpath)) {
qFatal("QFontDatabase: Cannot find font directory %s - is Qt installed correctly?",
qPrintable(fontpath));
}
QDir dir(fontpath);
dir.setNameFilters(QStringList() << QLatin1String("*.qpf2"));
dir.refresh();
for (int i = 0; i < int(dir.count()); ++i) {
const QByteArray fileName = QFile::encodeName(dir.absoluteFilePath(dir[i]));
QFile file(QString::fromLocal8Bit(fileName));
if (file.open(QFile::ReadOnly)) {
const QByteArray fileData = file.readAll();
QByteArray *fileDataPtr = new QByteArray(fileData);
registerQPF2Font(fileData, fileDataPtr);
}
}
}
QFontEngine *QPlatformFontDatabase::fontEngine(const QFontDef &fontDef, QUnicodeTables::Script script, void *handle)
{
Q_UNUSED(script);
Q_UNUSED(handle);
QByteArray *fileDataPtr = static_cast<QByteArray *>(handle);
QFontEngineQPA *engine = new QFontEngineQPA(fontDef,*fileDataPtr);
qDebug() << fontDef.pixelSize << fontDef.weight << fontDef.style << fontDef.stretch << fontDef.styleHint << fontDef.styleStrategy << fontDef.family << script;
return engine;
}
QStringList QPlatformFontDatabase::fallbacksForFamily(const QString family, const QFont::Style &style, const QUnicodeTables::Script &script) const
{
Q_UNUSED(family);
Q_UNUSED(style);
Q_UNUSED(script);
return QStringList();
}
/*!
Adds an application font. Returns a list of family names, or an empty list if the font could
not be added
*/
QStringList QPlatformFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName)
{
Q_UNUSED(fontData);
Q_UNUSED(fileName);
qWarning("This plugin does not support application fonts");
return QStringList();
}
void QPlatformFontDatabase::releaseHandle(void *handle)
{
QByteArray *fileDataPtr = static_cast<QByteArray *>(handle);
delete fileDataPtr;
}
QString QPlatformFontDatabase::fontDir() const
{
QString fontpath = QString::fromLocal8Bit(qgetenv("QT_QPA_FONTDIR"));
if (fontpath.isEmpty()) {
#ifndef QT_NO_SETTINGS
fontpath = QLibraryInfo::location(QLibraryInfo::LibrariesPath);
fontpath += QLatin1String("/fonts");
#endif
}
return fontpath;
}
QT_END_NAMESPACE
|
