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38 ****************************************************************************/
39
40 #ifndef QSIZE_H
41 #define QSIZE_H
42
43 #include <QtCore/qnamespace.h>
44 #include <QtCore/qmargins.h>
45
46 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
47 struct CGSize;
48 #endif
49
50 QT_BEGIN_NAMESPACE
51
52
53 class Q_CORE_EXPORT QSize
54 {
55 public:
56 Q_DECL_CONSTEXPR QSize() noexcept;
57 Q_DECL_CONSTEXPR QSize(int w, int h) noexcept;
58
59 Q_DECL_CONSTEXPR inline bool isNull() const noexcept;
60 Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
61 Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
62
63 Q_DECL_CONSTEXPR inline int width() const noexcept;
64 Q_DECL_CONSTEXPR inline int height() const noexcept;
65 Q_DECL_RELAXED_CONSTEXPR inline void setWidth(int w) noexcept;
66 Q_DECL_RELAXED_CONSTEXPR inline void setHeight(int h) noexcept;
67 void transpose() noexcept;
68 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize transposed() const noexcept;
69
70 inline void scale(int w, int h, Qt::AspectRatioMode mode) noexcept;
71 inline void scale(const QSize &s, Qt::AspectRatioMode mode) noexcept;
72 Q_REQUIRED_RESULT QSize scaled(int w, int h, Qt::AspectRatioMode mode) const noexcept;
73 Q_REQUIRED_RESULT QSize scaled(const QSize &s, Qt::AspectRatioMode mode) const noexcept;
74
75 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize expandedTo(const QSize &) const noexcept;
76 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize boundedTo(const QSize &) const noexcept;
77
grownBy(QMargins m)78 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSize grownBy(QMargins m) const noexcept
79 { return {width() + m.left() + m.right(), height() + m.top() + m.bottom()}; }
shrunkBy(QMargins m)80 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSize shrunkBy(QMargins m) const noexcept
81 { return {width() - m.left() - m.right(), height() - m.top() - m.bottom()}; }
82
83 Q_DECL_RELAXED_CONSTEXPR inline int &rwidth() noexcept;
84 Q_DECL_RELAXED_CONSTEXPR inline int &rheight() noexcept;
85
86 Q_DECL_RELAXED_CONSTEXPR inline QSize &operator+=(const QSize &) noexcept;
87 Q_DECL_RELAXED_CONSTEXPR inline QSize &operator-=(const QSize &) noexcept;
88 Q_DECL_RELAXED_CONSTEXPR inline QSize &operator*=(qreal c) noexcept;
89 inline QSize &operator/=(qreal c);
90
91 friend inline Q_DECL_CONSTEXPR bool operator==(const QSize &, const QSize &) noexcept;
92 friend inline Q_DECL_CONSTEXPR bool operator!=(const QSize &, const QSize &) noexcept;
93 friend inline Q_DECL_CONSTEXPR const QSize operator+(const QSize &, const QSize &) noexcept;
94 friend inline Q_DECL_CONSTEXPR const QSize operator-(const QSize &, const QSize &) noexcept;
95 friend inline Q_DECL_CONSTEXPR const QSize operator*(const QSize &, qreal) noexcept;
96 friend inline Q_DECL_CONSTEXPR const QSize operator*(qreal, const QSize &) noexcept;
97 friend inline const QSize operator/(const QSize &, qreal);
98
99 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
100 Q_REQUIRED_RESULT CGSize toCGSize() const noexcept;
101 #endif
102
103 private:
104 int wd;
105 int ht;
106 };
107 Q_DECLARE_TYPEINFO(QSize, Q_MOVABLE_TYPE);
108
109 /*****************************************************************************
110 QSize stream functions
111 *****************************************************************************/
112
113 #ifndef QT_NO_DATASTREAM
114 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QSize &);
115 Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QSize &);
116 #endif
117
118
119 /*****************************************************************************
120 QSize inline functions
121 *****************************************************************************/
122
QSize()123 Q_DECL_CONSTEXPR inline QSize::QSize() noexcept : wd(-1), ht(-1) {}
124
QSize(int w,int h)125 Q_DECL_CONSTEXPR inline QSize::QSize(int w, int h) noexcept : wd(w), ht(h) {}
126
isNull()127 Q_DECL_CONSTEXPR inline bool QSize::isNull() const noexcept
128 { return wd==0 && ht==0; }
129
isEmpty()130 Q_DECL_CONSTEXPR inline bool QSize::isEmpty() const noexcept
131 { return wd<1 || ht<1; }
132
isValid()133 Q_DECL_CONSTEXPR inline bool QSize::isValid() const noexcept
134 { return wd>=0 && ht>=0; }
135
width()136 Q_DECL_CONSTEXPR inline int QSize::width() const noexcept
137 { return wd; }
138
height()139 Q_DECL_CONSTEXPR inline int QSize::height() const noexcept
140 { return ht; }
141
setWidth(int w)142 Q_DECL_RELAXED_CONSTEXPR inline void QSize::setWidth(int w) noexcept
143 { wd = w; }
144
setHeight(int h)145 Q_DECL_RELAXED_CONSTEXPR inline void QSize::setHeight(int h) noexcept
146 { ht = h; }
147
transposed()148 Q_DECL_CONSTEXPR inline QSize QSize::transposed() const noexcept
149 { return QSize(ht, wd); }
150
scale(int w,int h,Qt::AspectRatioMode mode)151 inline void QSize::scale(int w, int h, Qt::AspectRatioMode mode) noexcept
152 { scale(QSize(w, h), mode); }
153
scale(const QSize & s,Qt::AspectRatioMode mode)154 inline void QSize::scale(const QSize &s, Qt::AspectRatioMode mode) noexcept
155 { *this = scaled(s, mode); }
156
scaled(int w,int h,Qt::AspectRatioMode mode)157 inline QSize QSize::scaled(int w, int h, Qt::AspectRatioMode mode) const noexcept
158 { return scaled(QSize(w, h), mode); }
159
rwidth()160 Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rwidth() noexcept
161 { return wd; }
162
rheight()163 Q_DECL_RELAXED_CONSTEXPR inline int &QSize::rheight() noexcept
164 { return ht; }
165
166 Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator+=(const QSize &s) noexcept
167 { wd+=s.wd; ht+=s.ht; return *this; }
168
169 Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator-=(const QSize &s) noexcept
170 { wd-=s.wd; ht-=s.ht; return *this; }
171
172 Q_DECL_RELAXED_CONSTEXPR inline QSize &QSize::operator*=(qreal c) noexcept
173 { wd = qRound(wd*c); ht = qRound(ht*c); return *this; }
174
175 Q_DECL_CONSTEXPR inline bool operator==(const QSize &s1, const QSize &s2) noexcept
176 { return s1.wd == s2.wd && s1.ht == s2.ht; }
177
178 Q_DECL_CONSTEXPR inline bool operator!=(const QSize &s1, const QSize &s2) noexcept
179 { return s1.wd != s2.wd || s1.ht != s2.ht; }
180
181 Q_DECL_CONSTEXPR inline const QSize operator+(const QSize & s1, const QSize & s2) noexcept
182 { return QSize(s1.wd+s2.wd, s1.ht+s2.ht); }
183
184 Q_DECL_CONSTEXPR inline const QSize operator-(const QSize &s1, const QSize &s2) noexcept
185 { return QSize(s1.wd-s2.wd, s1.ht-s2.ht); }
186
187 Q_DECL_CONSTEXPR inline const QSize operator*(const QSize &s, qreal c) noexcept
188 { return QSize(qRound(s.wd*c), qRound(s.ht*c)); }
189
190 Q_DECL_CONSTEXPR inline const QSize operator*(qreal c, const QSize &s) noexcept
191 { return QSize(qRound(s.wd*c), qRound(s.ht*c)); }
192
193 inline QSize &QSize::operator/=(qreal c)
194 {
195 Q_ASSERT(!qFuzzyIsNull(c));
196 wd = qRound(wd/c); ht = qRound(ht/c);
197 return *this;
198 }
199
200 inline const QSize operator/(const QSize &s, qreal c)
201 {
202 Q_ASSERT(!qFuzzyIsNull(c));
203 return QSize(qRound(s.wd/c), qRound(s.ht/c));
204 }
205
expandedTo(const QSize & otherSize)206 Q_DECL_CONSTEXPR inline QSize QSize::expandedTo(const QSize & otherSize) const noexcept
207 {
208 return QSize(qMax(wd,otherSize.wd), qMax(ht,otherSize.ht));
209 }
210
boundedTo(const QSize & otherSize)211 Q_DECL_CONSTEXPR inline QSize QSize::boundedTo(const QSize & otherSize) const noexcept
212 {
213 return QSize(qMin(wd,otherSize.wd), qMin(ht,otherSize.ht));
214 }
215
216 #ifndef QT_NO_DEBUG_STREAM
217 Q_CORE_EXPORT QDebug operator<<(QDebug, const QSize &);
218 #endif
219
220
221 class Q_CORE_EXPORT QSizeF
222 {
223 public:
224 Q_DECL_CONSTEXPR QSizeF() noexcept;
225 Q_DECL_CONSTEXPR QSizeF(const QSize &sz) noexcept;
226 Q_DECL_CONSTEXPR QSizeF(qreal w, qreal h) noexcept;
227
228 inline bool isNull() const noexcept;
229 Q_DECL_CONSTEXPR inline bool isEmpty() const noexcept;
230 Q_DECL_CONSTEXPR inline bool isValid() const noexcept;
231
232 Q_DECL_CONSTEXPR inline qreal width() const noexcept;
233 Q_DECL_CONSTEXPR inline qreal height() const noexcept;
234 Q_DECL_RELAXED_CONSTEXPR inline void setWidth(qreal w) noexcept;
235 Q_DECL_RELAXED_CONSTEXPR inline void setHeight(qreal h) noexcept;
236 void transpose() noexcept;
237 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF transposed() const noexcept;
238
239 inline void scale(qreal w, qreal h, Qt::AspectRatioMode mode) noexcept;
240 inline void scale(const QSizeF &s, Qt::AspectRatioMode mode) noexcept;
241 Q_REQUIRED_RESULT QSizeF scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const noexcept;
242 Q_REQUIRED_RESULT QSizeF scaled(const QSizeF &s, Qt::AspectRatioMode mode) const noexcept;
243
244 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF expandedTo(const QSizeF &) const noexcept;
245 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF boundedTo(const QSizeF &) const noexcept;
246
grownBy(QMarginsF m)247 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSizeF grownBy(QMarginsF m) const noexcept
248 { return {width() + m.left() + m.right(), height() + m.top() + m.bottom()}; }
shrunkBy(QMarginsF m)249 Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSizeF shrunkBy(QMarginsF m) const noexcept
250 { return {width() - m.left() - m.right(), height() - m.top() - m.bottom()}; }
251
252 Q_DECL_RELAXED_CONSTEXPR inline qreal &rwidth() noexcept;
253 Q_DECL_RELAXED_CONSTEXPR inline qreal &rheight() noexcept;
254
255 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator+=(const QSizeF &) noexcept;
256 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator-=(const QSizeF &) noexcept;
257 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &operator*=(qreal c) noexcept;
258 inline QSizeF &operator/=(qreal c);
259
260 friend Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &, const QSizeF &) noexcept;
261 friend Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &, const QSizeF &) noexcept;
262 friend Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF &, const QSizeF &) noexcept;
263 friend Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &, const QSizeF &) noexcept;
264 friend Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &, qreal) noexcept;
265 friend Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal, const QSizeF &) noexcept;
266 friend inline const QSizeF operator/(const QSizeF &, qreal);
267
268 Q_DECL_CONSTEXPR inline QSize toSize() const noexcept;
269
270 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
271 Q_REQUIRED_RESULT static QSizeF fromCGSize(CGSize size) noexcept;
272 Q_REQUIRED_RESULT CGSize toCGSize() const noexcept;
273 #endif
274
275 private:
276 qreal wd;
277 qreal ht;
278 };
279 Q_DECLARE_TYPEINFO(QSizeF, Q_MOVABLE_TYPE);
280
281
282 /*****************************************************************************
283 QSizeF stream functions
284 *****************************************************************************/
285
286 #ifndef QT_NO_DATASTREAM
287 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QSizeF &);
288 Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QSizeF &);
289 #endif
290
291
292 /*****************************************************************************
293 QSizeF inline functions
294 *****************************************************************************/
295
QSizeF()296 Q_DECL_CONSTEXPR inline QSizeF::QSizeF() noexcept : wd(-1.), ht(-1.) {}
297
QSizeF(const QSize & sz)298 Q_DECL_CONSTEXPR inline QSizeF::QSizeF(const QSize &sz) noexcept : wd(sz.width()), ht(sz.height()) {}
299
QSizeF(qreal w,qreal h)300 Q_DECL_CONSTEXPR inline QSizeF::QSizeF(qreal w, qreal h) noexcept : wd(w), ht(h) {}
301
isNull()302 inline bool QSizeF::isNull() const noexcept
303 { return qIsNull(wd) && qIsNull(ht); }
304
isEmpty()305 Q_DECL_CONSTEXPR inline bool QSizeF::isEmpty() const noexcept
306 { return wd <= 0. || ht <= 0.; }
307
isValid()308 Q_DECL_CONSTEXPR inline bool QSizeF::isValid() const noexcept
309 { return wd >= 0. && ht >= 0.; }
310
width()311 Q_DECL_CONSTEXPR inline qreal QSizeF::width() const noexcept
312 { return wd; }
313
height()314 Q_DECL_CONSTEXPR inline qreal QSizeF::height() const noexcept
315 { return ht; }
316
setWidth(qreal w)317 Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setWidth(qreal w) noexcept
318 { wd = w; }
319
setHeight(qreal h)320 Q_DECL_RELAXED_CONSTEXPR inline void QSizeF::setHeight(qreal h) noexcept
321 { ht = h; }
322
transposed()323 Q_DECL_CONSTEXPR inline QSizeF QSizeF::transposed() const noexcept
324 { return QSizeF(ht, wd); }
325
scale(qreal w,qreal h,Qt::AspectRatioMode mode)326 inline void QSizeF::scale(qreal w, qreal h, Qt::AspectRatioMode mode) noexcept
327 { scale(QSizeF(w, h), mode); }
328
scale(const QSizeF & s,Qt::AspectRatioMode mode)329 inline void QSizeF::scale(const QSizeF &s, Qt::AspectRatioMode mode) noexcept
330 { *this = scaled(s, mode); }
331
scaled(qreal w,qreal h,Qt::AspectRatioMode mode)332 inline QSizeF QSizeF::scaled(qreal w, qreal h, Qt::AspectRatioMode mode) const noexcept
333 { return scaled(QSizeF(w, h), mode); }
334
rwidth()335 Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rwidth() noexcept
336 { return wd; }
337
rheight()338 Q_DECL_RELAXED_CONSTEXPR inline qreal &QSizeF::rheight() noexcept
339 { return ht; }
340
341 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator+=(const QSizeF &s) noexcept
342 { wd += s.wd; ht += s.ht; return *this; }
343
344 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator-=(const QSizeF &s) noexcept
345 { wd -= s.wd; ht -= s.ht; return *this; }
346
347 Q_DECL_RELAXED_CONSTEXPR inline QSizeF &QSizeF::operator*=(qreal c) noexcept
348 { wd *= c; ht *= c; return *this; }
349
350 Q_DECL_CONSTEXPR inline bool operator==(const QSizeF &s1, const QSizeF &s2) noexcept
351 { return qFuzzyCompare(s1.wd, s2.wd) && qFuzzyCompare(s1.ht, s2.ht); }
352
353 Q_DECL_CONSTEXPR inline bool operator!=(const QSizeF &s1, const QSizeF &s2) noexcept
354 { return !qFuzzyCompare(s1.wd, s2.wd) || !qFuzzyCompare(s1.ht, s2.ht); }
355
356 Q_DECL_CONSTEXPR inline const QSizeF operator+(const QSizeF & s1, const QSizeF & s2) noexcept
357 { return QSizeF(s1.wd+s2.wd, s1.ht+s2.ht); }
358
359 Q_DECL_CONSTEXPR inline const QSizeF operator-(const QSizeF &s1, const QSizeF &s2) noexcept
360 { return QSizeF(s1.wd-s2.wd, s1.ht-s2.ht); }
361
362 Q_DECL_CONSTEXPR inline const QSizeF operator*(const QSizeF &s, qreal c) noexcept
363 { return QSizeF(s.wd*c, s.ht*c); }
364
365 Q_DECL_CONSTEXPR inline const QSizeF operator*(qreal c, const QSizeF &s) noexcept
366 { return QSizeF(s.wd*c, s.ht*c); }
367
368 inline QSizeF &QSizeF::operator/=(qreal c)
369 {
370 Q_ASSERT(!qFuzzyIsNull(c));
371 wd = wd/c; ht = ht/c;
372 return *this;
373 }
374
375 inline const QSizeF operator/(const QSizeF &s, qreal c)
376 {
377 Q_ASSERT(!qFuzzyIsNull(c));
378 return QSizeF(s.wd/c, s.ht/c);
379 }
380
expandedTo(const QSizeF & otherSize)381 Q_DECL_CONSTEXPR inline QSizeF QSizeF::expandedTo(const QSizeF & otherSize) const noexcept
382 {
383 return QSizeF(qMax(wd,otherSize.wd), qMax(ht,otherSize.ht));
384 }
385
boundedTo(const QSizeF & otherSize)386 Q_DECL_CONSTEXPR inline QSizeF QSizeF::boundedTo(const QSizeF & otherSize) const noexcept
387 {
388 return QSizeF(qMin(wd,otherSize.wd), qMin(ht,otherSize.ht));
389 }
390
toSize()391 Q_DECL_CONSTEXPR inline QSize QSizeF::toSize() const noexcept
392 {
393 return QSize(qRound(wd), qRound(ht));
394 }
395
396 #ifndef QT_NO_DEBUG_STREAM
397 Q_CORE_EXPORT QDebug operator<<(QDebug, const QSizeF &);
398 #endif
399
400 QT_END_NAMESPACE
401
402 #endif // QSIZE_H
403