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39
40#ifndef QFONT_H
41#define QFONT_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtGui/qwindowdefs.h>
45#include <QtCore/qstring.h>
46#include <QtCore/qsharedpointer.h>
47
48
49QT_BEGIN_NAMESPACE
50
51
52class QFontPrivate; /* don't touch */
53class QStringList;
54class QVariant;
55
56class Q_GUI_EXPORT QFont
57{
58 Q_GADGET
59public:
60 enum StyleHint {
61 Helvetica, SansSerif = Helvetica,
62 Times, Serif = Times,
63 Courier, TypeWriter = Courier,
64 OldEnglish, Decorative = OldEnglish,
65 System,
66 AnyStyle,
67 Cursive,
68 Monospace,
69 Fantasy
70 };
71 Q_ENUM(StyleHint)
72
73 enum StyleStrategy {
74 PreferDefault = 0x0001,
75 PreferBitmap = 0x0002,
76 PreferDevice = 0x0004,
77 PreferOutline = 0x0008,
78 ForceOutline = 0x0010,
79 PreferMatch = 0x0020,
80 PreferQuality = 0x0040,
81 PreferAntialias = 0x0080,
82 NoAntialias = 0x0100,
83#if QT_DEPRECATED_SINCE(5, 15)
84 OpenGLCompatible Q_DECL_ENUMERATOR_DEPRECATED = 0x0200,
85 ForceIntegerMetrics Q_DECL_ENUMERATOR_DEPRECATED = 0x0400,
86#endif
87 NoSubpixelAntialias = 0x0800,
88 PreferNoShaping = 0x1000,
89 NoFontMerging = 0x8000
90 };
91 Q_ENUM(StyleStrategy)
92
93 enum HintingPreference {
94 PreferDefaultHinting = 0,
95 PreferNoHinting = 1,
96 PreferVerticalHinting = 2,
97 PreferFullHinting = 3
98 };
99 Q_ENUM(HintingPreference)
100
101 // Mapping OpenType weight value.
102 enum Weight {
103 Thin = 0, // 100
104 ExtraLight = 12, // 200
105 Light = 25, // 300
106 Normal = 50, // 400
107 Medium = 57, // 500
108 DemiBold = 63, // 600
109 Bold = 75, // 700
110 ExtraBold = 81, // 800
111 Black = 87 // 900
112 };
113 Q_ENUM(Weight)
114
115 enum Style {
116 StyleNormal,
117 StyleItalic,
118 StyleOblique
119 };
120 Q_ENUM(Style)
121
122 enum Stretch {
123 AnyStretch = 0,
124 UltraCondensed = 50,
125 ExtraCondensed = 62,
126 Condensed = 75,
127 SemiCondensed = 87,
128 Unstretched = 100,
129 SemiExpanded = 112,
130 Expanded = 125,
131 ExtraExpanded = 150,
132 UltraExpanded = 200
133 };
134 Q_ENUM(Stretch)
135
136 enum Capitalization {
137 MixedCase,
138 AllUppercase,
139 AllLowercase,
140 SmallCaps,
141 Capitalize
142 };
143 Q_ENUM(Capitalization)
144
145 enum SpacingType {
146 PercentageSpacing,
147 AbsoluteSpacing
148 };
149 Q_ENUM(SpacingType)
150
151 enum ResolveProperties {
152 NoPropertiesResolved = 0x0000,
153 FamilyResolved = 0x0001,
154 SizeResolved = 0x0002,
155 StyleHintResolved = 0x0004,
156 StyleStrategyResolved = 0x0008,
157 WeightResolved = 0x0010,
158 StyleResolved = 0x0020,
159 UnderlineResolved = 0x0040,
160 OverlineResolved = 0x0080,
161 StrikeOutResolved = 0x0100,
162 FixedPitchResolved = 0x0200,
163 StretchResolved = 0x0400,
164 KerningResolved = 0x0800,
165 CapitalizationResolved = 0x1000,
166 LetterSpacingResolved = 0x2000,
167 WordSpacingResolved = 0x4000,
168 HintingPreferenceResolved = 0x8000,
169 StyleNameResolved = 0x10000,
170 FamiliesResolved = 0x20000,
171 AllPropertiesResolved = 0x3ffff
172 };
173 Q_ENUM(ResolveProperties)
174
175 QFont();
176 QFont(const QString &family, int pointSize = -1, int weight = -1, bool italic = false);
177#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
178 QFont(const QFont &font, QPaintDevice *pd);
179#endif
180 QFont(const QFont &font, const QPaintDevice *pd);
181 QFont(const QFont &font);
182 ~QFont();
183
184 void swap(QFont &other)
185 { qSwap(d, other.d); qSwap(resolve_mask, other.resolve_mask); }
186
187 QString family() const;
188 void setFamily(const QString &);
189
190 QStringList families() const;
191 void setFamilies(const QStringList &);
192
193 QString styleName() const;
194 void setStyleName(const QString &);
195
196 int pointSize() const;
197 void setPointSize(int);
198 qreal pointSizeF() const;
199 void setPointSizeF(qreal);
200
201 int pixelSize() const;
202 void setPixelSize(int);
203
204 int weight() const;
205 void setWeight(int);
206
207 inline bool bold() const;
208 inline void setBold(bool);
209
210 void setStyle(Style style);
211 Style style() const;
212
213 inline bool italic() const;
214 inline void setItalic(bool b);
215
216 bool underline() const;
217 void setUnderline(bool);
218
219 bool overline() const;
220 void setOverline(bool);
221
222 bool strikeOut() const;
223 void setStrikeOut(bool);
224
225 bool fixedPitch() const;
226 void setFixedPitch(bool);
227
228 bool kerning() const;
229 void setKerning(bool);
230
231 StyleHint styleHint() const;
232 StyleStrategy styleStrategy() const;
233 void setStyleHint(StyleHint, StyleStrategy = PreferDefault);
234 void setStyleStrategy(StyleStrategy s);
235
236 int stretch() const;
237 void setStretch(int);
238
239 qreal letterSpacing() const;
240 SpacingType letterSpacingType() const;
241 void setLetterSpacing(SpacingType type, qreal spacing);
242
243 qreal wordSpacing() const;
244 void setWordSpacing(qreal spacing);
245
246 void setCapitalization(Capitalization);
247 Capitalization capitalization() const;
248
249 void setHintingPreference(HintingPreference hintingPreference);
250 HintingPreference hintingPreference() const;
251
252#if QT_DEPRECATED_SINCE(5, 5)
253 bool rawMode() const;
254 void setRawMode(bool);
255#endif
256
257 // dupicated from QFontInfo
258 bool exactMatch() const;
259
260 QFont &operator=(const QFont &);
261 bool operator==(const QFont &) const;
262 bool operator!=(const QFont &) const;
263 bool operator<(const QFont &) const;
264 operator QVariant() const;
265 bool isCopyOf(const QFont &) const;
266 inline QFont &operator=(QFont &&other) noexcept
267 { qSwap(d, other.d); qSwap(resolve_mask, other.resolve_mask); return *this; }
268
269#if QT_DEPRECATED_SINCE(5, 3)
270 // needed for X11
271 QT_DEPRECATED void setRawName(const QString &);
272 QT_DEPRECATED QString rawName() const;
273#endif
274
275 QString key() const;
276
277 QString toString() const;
278 bool fromString(const QString &);
279
280 static QString substitute(const QString &);
281 static QStringList substitutes(const QString &);
282 static QStringList substitutions();
283 static void insertSubstitution(const QString&, const QString &);
284 static void insertSubstitutions(const QString&, const QStringList &);
285 static void removeSubstitutions(const QString &);
286#if QT_DEPRECATED_SINCE(5, 0)
287 static QT_DEPRECATED void removeSubstitution(const QString &family) { removeSubstitutions(family); }
288#endif
289 static void initialize();
290 static void cleanup();
291 static void cacheStatistics();
292
293 QString defaultFamily() const;
294#if QT_DEPRECATED_SINCE(5, 13)
295 QT_DEPRECATED QString lastResortFamily() const;
296 QT_DEPRECATED QString lastResortFont() const;
297#endif
298
299 QFont resolve(const QFont &) const;
300 inline uint resolve() const { return resolve_mask; }
301 inline void resolve(uint mask) { resolve_mask = mask; }
302
303private:
304 explicit QFont(QFontPrivate *);
305
306 void detach();
307
308
309 friend class QFontPrivate;
310 friend class QFontDialogPrivate;
311 friend class QFontMetrics;
312 friend class QFontMetricsF;
313 friend class QFontInfo;
314 friend class QPainter;
315 friend class QPainterPrivate;
316 friend class QApplication;
317 friend class QWidget;
318 friend class QWidgetPrivate;
319 friend class QTextLayout;
320 friend class QTextEngine;
321 friend class QStackTextEngine;
322 friend class QTextLine;
323 friend struct QScriptLine;
324 friend class QOpenGLContext;
325 friend class QWin32PaintEngine;
326 friend class QAlphaPaintEngine;
327 friend class QPainterPath;
328 friend class QTextItemInt;
329 friend class QPicturePaintEngine;
330 friend class QPainterReplayer;
331 friend class QPaintBufferEngine;
332 friend class QCommandLinkButtonPrivate;
333 friend class QFontEngine;
334
335#ifndef QT_NO_DATASTREAM
336 friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QFont &);
337 friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QFont &);
338#endif
339
340#ifndef QT_NO_DEBUG_STREAM
341 friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QFont &);
342#endif
343
344 QExplicitlySharedDataPointer<QFontPrivate> d;
345 uint resolve_mask;
346};
347
348Q_DECLARE_SHARED(QFont)
349
350Q_GUI_EXPORT uint qHash(const QFont &font, uint seed = 0) noexcept;
351
352inline bool QFont::bold() const
353{ return weight() > Medium; }
354
355
356inline void QFont::setBold(bool enable)
357{ setWeight(enable ? Bold : Normal); }
358
359inline bool QFont::italic() const
360{
361 return (style() != StyleNormal);
362}
363
364inline void QFont::setItalic(bool b) {
365 setStyle(b ? StyleItalic : StyleNormal);
366}
367
368
369/*****************************************************************************
370 QFont stream functions
371 *****************************************************************************/
372
373#ifndef QT_NO_DATASTREAM
374Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QFont &);
375Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QFont &);
376#endif
377
378#ifndef QT_NO_DEBUG_STREAM
379Q_GUI_EXPORT QDebug operator<<(QDebug, const QFont &);
380#endif
381
382QT_END_NAMESPACE
383
384#endif // QFONT_H
385

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