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39
40#ifndef QFONTDATABASE_H
41#define QFONTDATABASE_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtGui/qwindowdefs.h>
45#include <QtCore/qstring.h>
46#include <QtGui/qfont.h>
47
48QT_BEGIN_NAMESPACE
49
50
51class QStringList;
52template <class T> class QList;
53struct QFontDef;
54class QFontEngine;
55
56class QFontDatabasePrivate;
57
58class Q_GUI_EXPORT QFontDatabase
59{
60 Q_GADGET
61public:
62 // do not re-order or delete entries from this enum without updating the
63 // QPF2 format and makeqpf!!
64 enum WritingSystem {
65 Any,
66
67 Latin,
68 Greek,
69 Cyrillic,
70 Armenian,
71 Hebrew,
72 Arabic,
73 Syriac,
74 Thaana,
75 Devanagari,
76 Bengali,
77 Gurmukhi,
78 Gujarati,
79 Oriya,
80 Tamil,
81 Telugu,
82 Kannada,
83 Malayalam,
84 Sinhala,
85 Thai,
86 Lao,
87 Tibetan,
88 Myanmar,
89 Georgian,
90 Khmer,
91 SimplifiedChinese,
92 TraditionalChinese,
93 Japanese,
94 Korean,
95 Vietnamese,
96
97 Symbol,
98 Other = Symbol,
99
100 Ogham,
101 Runic,
102 Nko,
103
104 WritingSystemsCount
105 };
106 Q_ENUM(WritingSystem)
107
108 enum SystemFont {
109 GeneralFont,
110 FixedFont,
111 TitleFont,
112 SmallestReadableFont
113 };
114 Q_ENUM(SystemFont)
115
116 static QList<int> standardSizes();
117
118 QFontDatabase();
119
120 QList<WritingSystem> writingSystems() const;
121 QList<WritingSystem> writingSystems(const QString &family) const;
122
123 QStringList families(WritingSystem writingSystem = Any) const;
124 QStringList styles(const QString &family) const;
125 QList<int> pointSizes(const QString &family, const QString &style = QString());
126 QList<int> smoothSizes(const QString &family, const QString &style);
127 QString styleString(const QFont &font);
128 QString styleString(const QFontInfo &fontInfo);
129
130 QFont font(const QString &family, const QString &style, int pointSize) const;
131
132 bool isBitmapScalable(const QString &family, const QString &style = QString()) const;
133 bool isSmoothlyScalable(const QString &family, const QString &style = QString()) const;
134 bool isScalable(const QString &family, const QString &style = QString()) const;
135 bool isFixedPitch(const QString &family, const QString &style = QString()) const;
136
137 bool italic(const QString &family, const QString &style) const;
138 bool bold(const QString &family, const QString &style) const;
139 int weight(const QString &family, const QString &style) const;
140
141 bool hasFamily(const QString &family) const;
142 bool isPrivateFamily(const QString &family) const;
143
144 static QString writingSystemName(WritingSystem writingSystem);
145 static QString writingSystemSample(WritingSystem writingSystem);
146
147 static int addApplicationFont(const QString &fileName);
148 static int addApplicationFontFromData(const QByteArray &fontData);
149 static QStringList applicationFontFamilies(int id);
150 static bool removeApplicationFont(int id);
151 static bool removeAllApplicationFonts();
152
153#if QT_DEPRECATED_SINCE(5, 2)
154 QT_DEPRECATED static bool supportsThreadedFontRendering();
155#endif
156
157 static QFont systemFont(SystemFont type);
158
159private:
160 static void createDatabase();
161 static void parseFontName(const QString &name, QString &foundry, QString &family);
162 static QString resolveFontFamilyAlias(const QString &family);
163 static QFontEngine *findFont(const QFontDef &request, int script /* QChar::Script */, bool preferScriptOverFamily = false);
164 static void load(const QFontPrivate *d, int script /* QChar::Script */);
165
166 friend struct QFontDef;
167 friend class QFontPrivate;
168 friend class QFontDialog;
169 friend class QFontDialogPrivate;
170 friend class QFontEngineMulti;
171 friend class QRawFont;
172
173 QFontDatabasePrivate *d;
174};
175
176QT_END_NAMESPACE
177
178#endif // QFONTDATABASE_H
179

source code of qtbase/src/gui/text/qfontdatabase.h