qbasicfontdatabase.cpp

Absolute File Name:

/home/qt/qt5_coco/qt5/qtbase/src/platformsupport/fontdatabases/basic/qbasicfontdatabase.cpp

Source code

Switch to Preprocessed file

Line Source Count

1 /**************************************************************************** -

2 ** -

4 ** Contact: https://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the plugins of the Qt Toolkit. -

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL$ -

9 ** Commercial License Usage -

10 ** Licensees holding valid commercial Qt licenses may use this file in -

11 ** accordance with the commercial license agreement provided with the -

12 ** Software or, alternatively, in accordance with the terms contained in -

13 ** a written agreement between you and The Qt Company. For licensing terms -

14 ** and conditions see https://www.qt.io/terms-conditions. For further -

15 ** information use the contact form at https://www.qt.io/contact-us. -

16 ** -

17 ** GNU Lesser General Public License Usage -

18 ** Alternatively, this file may be used under the terms of the GNU Lesser -

19 ** General Public License version 3 as published by the Free Software -

20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the -

21 ** packaging of this file. Please review the following information to -

22 ** ensure the GNU Lesser General Public License version 3 requirements -

23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -

24 ** -

25 ** GNU General Public License Usage -

26 ** Alternatively, this file may be used under the terms of the GNU -

27 ** General Public License version 2.0 or (at your option) the GNU General -

28 ** Public license version 3 or any later version approved by the KDE Free -

29 ** Qt Foundation. The licenses are as published by the Free Software -

30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -

31 ** included in the packaging of this file. Please review the following -

32 ** information to ensure the GNU General Public License requirements will -

33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and -

34 ** https://www.gnu.org/licenses/gpl-3.0.html. -

35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

38 ****************************************************************************/ -

39 -

40 #include "qbasicfontdatabase_p.h" -

41 -

42 #include <QtGui/private/qguiapplication_p.h> -

43 #include <qpa/qplatformscreen.h> -

44 -

45 #include <QtCore/QFile> -

46 #include <QtCore/QLibraryInfo> -

47 #include <QtCore/QDir> -

48 #include <QtCore/QUuid> -

49 #include <QtCore/QtEndian> -

50 -

51 #undef QT_NO_FREETYPE -

52 #include <QtGui/private/qfontengine_ft_p.h> -

53 #include <QtGui/private/qfontengine_p.h> -

54 -

55 #include <ft2build.h> -

56 #include FT_TRUETYPE_TABLES_H -

57 #include FT_ERRORS_H -

58 -

59 QT_BEGIN_NAMESPACE -

60 -

61 void QBasicFontDatabase::populateFontDatabase() -

62 { -

63 QString fontpath = fontDir(); -

64 QDir dir(fontpath); -

65 -

if (!dir.exists()) {

!dir.exists()	Description
TRUE	never evaluated
FALSE	never evaluated

67 qWarning("QFontDatabase: Cannot find font directory %s.\n" -

68 "Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org isfor Qtexample) installedor correctly?switch to fontconfig.", -

69 qPrintable(fontpath)); -

return;

never executed: return;

71 } -

72 -

73 QStringList nameFilters; -

74 nameFilters << QLatin1String("*.ttf") -

75 << QLatin1String("*.ttc") -

76 << QLatin1String("*.pfa") -

77 << QLatin1String("*.pfb") -

78 << QLatin1String("*.otf"); -

79 -

80 foreach (const QFileInfo &fi, dir.entryInfoList(nameFilters, QDir::Files)) { -

81 const QByteArray file = QFile::encodeName(fi.absoluteFilePath()); -

82 QBasicFontDatabase::addTTFile(QByteArray(), file); -

}

never executed: end of block

}

never executed: end of block

85 -

86 QFontEngine *QBasicFontDatabase::fontEngine(const QFontDef &fontDef, void *usrPtr) -

87 { -

88 FontFile *fontfile = static_cast<FontFile *> (usrPtr); -

89 QFontEngine::FaceId fid; -

90 fid.filename = QFile::encodeName(fontfile->fileName); -

91 fid.index = fontfile->indexValue; -

92 -

93 bool antialias = !(fontDef.styleStrategy & QFont::NoAntialias); -

94 QFontEngineFT *engine = new QFontEngineFT(fontDef); -

95 QFontEngineFT::GlyphFormat format = QFontEngineFT::Format_Mono; -

96 if (antialias) { -

97 QFontEngine::SubpixelAntialiasingType subpixelType = subpixelAntialiasingTypeHint(); -

98 if (subpixelType == QFontEngine::Subpixel_None || (fontDef.styleStrategy & QFont::NoSubpixelAntialias)) { -

99 format = QFontEngineFT::Format_A8; -

100 engine->subpixelType = QFontEngine::Subpixel_None; -

101 } else { -

102 format = QFontEngineFT::Format_A32; -

103 engine->subpixelType = subpixelType; -

104 } -

105 } -

106 -

107 if (!engine->init(fid, antialias, format) || engine->invalid()) { -

108 delete engine; -

109 engine = 0; -

110 } else { -

111 engine->setQtDefaultHintStyle(static_cast<QFont::HintingPreference>(fontDef.hintingPreference)); -

112 } -

113 -

114 return engine; -

115 } -

116 -

117 namespace { -

118 -

119 class QFontEngineFTRawData: public QFontEngineFT -

120 { -

121 public: -

122 QFontEngineFTRawData(const QFontDef &fontDef) : QFontEngineFT(fontDef) -

123 { -

124 } -

125 -

126 void updateFamilyNameAndStyle() -

127 { -

128 fontDef.family = QString::fromLatin1(freetype->face->family_name); -

129 -

130 if (freetype->face->style_flags & FT_STYLE_FLAG_ITALIC) -

131 fontDef.style = QFont::StyleItalic; -

132 -

133 if (freetype->face->style_flags & FT_STYLE_FLAG_BOLD) -

134 fontDef.weight = QFont::Bold; -

135 } -

136 -

137 bool initFromData(const QByteArray &fontData) -

138 { -

139 FaceId faceId; -

140 faceId.filename = ""; -

141 faceId.index = 0; -

142 faceId.uuid = QUuid::createUuid().toByteArray(); -

143 -

144 return init(faceId, true, Format_None, fontData); -

145 } -

146 }; -

147 -

148 } -

149 -

150 QFontEngine *QBasicFontDatabase::fontEngine(const QByteArray &fontData, qreal pixelSize, -

151 QFont::HintingPreference hintingPreference) -

152 { -

153 QFontDef fontDef; -

154 fontDef.pixelSize = pixelSize; -

155 fontDef.hintingPreference = hintingPreference; -

156 -

157 QFontEngineFTRawData *fe = new QFontEngineFTRawData(fontDef); -

158 if (!fe->initFromData(fontData)) { -

159 delete fe; -

160 return 0; -

161 } -

162 -

163 fe->updateFamilyNameAndStyle(); -

164 fe->setQtDefaultHintStyle(static_cast<QFont::HintingPreference>(fontDef.hintingPreference)); -

165 -

166 return fe; -

167 } -

168 -

169 QStringList QBasicFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName) -

170 { -

171 return QBasicFontDatabase::addTTFile(fontData, fileName.toLocal8Bit()); -

172 } -

173 -

174 void QBasicFontDatabase::releaseHandle(void *handle) -

175 { -

176 FontFile *file = static_cast<FontFile *>(handle); -

177 delete file; -

178 } -

179 -

180 extern FT_Library qt_getFreetype(); -

181 -

182 QStringList QBasicFontDatabase::addTTFile(const QByteArray &fontData, const QByteArray &file) -

183 { -

184 FT_Library library = qt_getFreetype(); -

185 -

186 int index = 0; -

187 int numFaces = 0; -

188 QStringList families; -

189 do { -

190 FT_Face face; -

191 FT_Error error; -

192 if (!fontData.isEmpty()) { -

193 error = FT_New_Memory_Face(library, (const FT_Byte *)fontData.constData(), fontData.size(), index, &face); -

194 } else { -

195 error = FT_New_Face(library, file.constData(), index, &face); -

196 } -

197 if (error != FT_Err_Ok) { -

198 qDebug() << "FT_New_Face failed with index" << index << ':' << hex << error; -

199 break; -

200 } -

201 numFaces = face->num_faces; -

202 -

203 QFont::Weight weight = QFont::Normal; -

204 -

205 QFont::Style style = QFont::StyleNormal; -

206 if (face->style_flags & FT_STYLE_FLAG_ITALIC) -

207 style = QFont::StyleItalic; -

208 -

209 if (face->style_flags & FT_STYLE_FLAG_BOLD) -

210 weight = QFont::Bold; -

211 -

212 bool fixedPitch = (face->face_flags & FT_FACE_FLAG_FIXED_WIDTH); -

213 -

214 QSupportedWritingSystems writingSystems; -

215 // detect symbol fonts -

216 for (int i = 0; i < face->num_charmaps; ++i) { -

217 FT_CharMap cm = face->charmaps[i]; -

218 if (cm->encoding == FT_ENCODING_ADOBE_CUSTOM -

219 || cm->encoding == FT_ENCODING_MS_SYMBOL) { -

220 writingSystems.setSupported(QFontDatabase::Symbol); -

221 break; -

222 } -

223 } -

224 -

225 TT_OS2 *os2 = (TT_OS2 *)FT_Get_Sfnt_Table(face, ft_sfnt_os2); -

226 if (os2) { -

227 quint32 unicodeRange[4] = { -

228 quint32(os2->ulUnicodeRange1), -

229 quint32(os2->ulUnicodeRange2), -

230 quint32(os2->ulUnicodeRange3), -

231 quint32(os2->ulUnicodeRange4) -

232 }; -

233 quint32 codePageRange[2] = { -

234 quint32(os2->ulCodePageRange1), -

235 quint32(os2->ulCodePageRange2) -

236 }; -

237 -

238 writingSystems = QPlatformFontDatabase::writingSystemsFromTrueTypeBits(unicodeRange, codePageRange); -

239 -

240 if (os2->usWeightClass) { -

241 weight = QPlatformFontDatabase::weightFromInteger(os2->usWeightClass); -

242 } else if (os2->panose[2]) { -

243 int w = os2->panose[2]; -

244 if (w <= 1) -

245 weight = QFont::Thin; -

246 else if (w <= 2) -

247 weight = QFont::ExtraLight; -

248 else if (w <= 3) -

249 weight = QFont::Light; -

250 else if (w <= 5) -

251 weight = QFont::Normal; -

252 else if (w <= 6) -

253 weight = QFont::Medium; -

254 else if (w <= 7) -

255 weight = QFont::DemiBold; -

256 else if (w <= 8) -

257 weight = QFont::Bold; -

258 else if (w <= 9) -

259 weight = QFont::ExtraBold; -

260 else if (w <= 10) -

261 weight = QFont::Black; -

262 } -

263 } -

264 -

265 QString family = QString::fromLatin1(face->family_name); -

266 FontFile *fontFile = new FontFile; -

267 fontFile->fileName = QFile::decodeName(file); -

268 fontFile->indexValue = index; -

269 -

270 QFont::Stretch stretch = QFont::Unstretched; -

271 -

272 registerFont(family,QString::fromLatin1(face->style_name),QString(),weight,style,stretch,true,true,0,fixedPitch,writingSystems,fontFile); -

273 -

274 families.append(family); -

275 -

276 FT_Done_Face(face); -

277 ++index; -

278 } while (index < numFaces); -

279 return families; -

280 } -

281 -

282 QT_END_NAMESPACE -

Source code

Switch to Preprocessed file

Generated by Squish Coco Non-Commercial 4.3.0-BETA-master-30-08-2018-4cb69e9