/src/qtbase/src/corelib/kernel/qvariant.cpp
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1 | | /**************************************************************************** |
2 | | ** |
3 | | ** Copyright (C) 2020 The Qt Company Ltd. |
4 | | ** Copyright (C) 2018 Intel Corporation. |
5 | | ** Copyright (C) 2015 Olivier Goffart <ogoffart@woboq.com> |
6 | | ** Contact: https://www.qt.io/licensing/ |
7 | | ** |
8 | | ** This file is part of the QtCore module of the Qt Toolkit. |
9 | | ** |
10 | | ** $QT_BEGIN_LICENSE:LGPL$ |
11 | | ** Commercial License Usage |
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13 | | ** accordance with the commercial license agreement provided with the |
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16 | | ** and conditions see https://www.qt.io/terms-conditions. For further |
17 | | ** information use the contact form at https://www.qt.io/contact-us. |
18 | | ** |
19 | | ** GNU Lesser General Public License Usage |
20 | | ** Alternatively, this file may be used under the terms of the GNU Lesser |
21 | | ** General Public License version 3 as published by the Free Software |
22 | | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
23 | | ** packaging of this file. Please review the following information to |
24 | | ** ensure the GNU Lesser General Public License version 3 requirements |
25 | | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
26 | | ** |
27 | | ** GNU General Public License Usage |
28 | | ** Alternatively, this file may be used under the terms of the GNU |
29 | | ** General Public License version 2.0 or (at your option) the GNU General |
30 | | ** Public license version 3 or any later version approved by the KDE Free |
31 | | ** Qt Foundation. The licenses are as published by the Free Software |
32 | | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
33 | | ** included in the packaging of this file. Please review the following |
34 | | ** information to ensure the GNU General Public License requirements will |
35 | | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
36 | | ** https://www.gnu.org/licenses/gpl-3.0.html. |
37 | | ** |
38 | | ** $QT_END_LICENSE$ |
39 | | ** |
40 | | ****************************************************************************/ |
41 | | |
42 | | #include "qvariant.h" |
43 | | #include "qbitarray.h" |
44 | | #include "qbytearray.h" |
45 | | #include "qdatastream.h" |
46 | | #include "qdebug.h" |
47 | | #include "qmap.h" |
48 | | #include "qdatetime.h" |
49 | | #if QT_CONFIG(easingcurve) |
50 | | #include "qeasingcurve.h" |
51 | | #endif |
52 | | #include "qlist.h" |
53 | | #if QT_CONFIG(regularexpression) |
54 | | #include "qregularexpression.h" |
55 | | #endif |
56 | | #include "qstring.h" |
57 | | #include "qstringlist.h" |
58 | | #include "qurl.h" |
59 | | #include "qlocale.h" |
60 | | #include "qregexp.h" |
61 | | #include "quuid.h" |
62 | | #if QT_CONFIG(itemmodel) |
63 | | #include "qabstractitemmodel.h" |
64 | | #endif |
65 | | #ifndef QT_BOOTSTRAPPED |
66 | | #include "qcborarray.h" |
67 | | #include "qcborcommon.h" |
68 | | #include "qcbormap.h" |
69 | | #include "qjsonvalue.h" |
70 | | #include "qjsonobject.h" |
71 | | #include "qjsonarray.h" |
72 | | #include "qjsondocument.h" |
73 | | #include "qbytearraylist.h" |
74 | | #endif |
75 | | #include "private/qvariant_p.h" |
76 | | #include "private/qlocale_p.h" |
77 | | #include "qmetatype_p.h" |
78 | | #include <qmetaobject.h> |
79 | | |
80 | | #ifndef QT_NO_GEOM_VARIANT |
81 | | #include "qsize.h" |
82 | | #include "qpoint.h" |
83 | | #include "qrect.h" |
84 | | #include "qline.h" |
85 | | #endif |
86 | | |
87 | | #include <cmath> |
88 | | #include <float.h> |
89 | | #include <cstring> |
90 | | |
91 | | QT_BEGIN_NAMESPACE |
92 | | |
93 | | namespace { |
94 | | class HandlersManager |
95 | | { |
96 | | static const QVariant::Handler *Handlers[QModulesPrivate::ModulesCount]; |
97 | | public: |
98 | | const QVariant::Handler *operator[] (const uint typeId) const |
99 | 18 | { |
100 | 18 | return Handlers[QModulesPrivate::moduleForType(typeId)]; |
101 | 18 | } |
102 | | |
103 | | void registerHandler(const QModulesPrivate::Names name, const QVariant::Handler *handler) |
104 | 0 | { |
105 | 0 | Handlers[name] = handler; |
106 | 0 | } |
107 | | }; |
108 | | } // namespace |
109 | | |
110 | | namespace { |
111 | | struct CoreTypesFilter { |
112 | | template<typename T> |
113 | | struct Acceptor { |
114 | | static const bool IsAccepted = QModulesPrivate::QTypeModuleInfo<T>::IsCore && QtMetaTypePrivate::TypeDefinition<T>::IsAvailable; |
115 | | }; |
116 | | }; |
117 | | } // annonymous |
118 | | |
119 | | namespace { // annonymous used to hide QVariant handlers |
120 | | |
121 | | static void construct(QVariant::Private *x, const void *copy) |
122 | 0 | { |
123 | 0 | QVariantConstructor<CoreTypesFilter> constructor(x, copy); |
124 | 0 | QMetaTypeSwitcher::switcher<void>(constructor, x->type); |
125 | 0 | } |
126 | | |
127 | | static void clear(QVariant::Private *d) |
128 | 0 | { |
129 | 0 | QVariantDestructor<CoreTypesFilter> cleaner(d); |
130 | 0 | QMetaTypeSwitcher::switcher<void>(cleaner, d->type); |
131 | 0 | } |
132 | | |
133 | | static bool isNull(const QVariant::Private *d) |
134 | 8 | { |
135 | 8 | QVariantIsNull<CoreTypesFilter> isNull(d); |
136 | 8 | return QMetaTypeSwitcher::switcher<bool>(isNull, d->type); |
137 | 8 | } |
138 | | |
139 | | /*! |
140 | | \internal |
141 | | |
142 | | Compares \a a to \a b. The caller guarantees that \a a and \a b |
143 | | are of the same type. |
144 | | */ |
145 | | static bool compare(const QVariant::Private *a, const QVariant::Private *b) |
146 | 0 | { |
147 | 0 | QVariantComparator<CoreTypesFilter> comparator(a, b); |
148 | 0 | return QMetaTypeSwitcher::switcher<bool>(comparator, a->type); |
149 | 0 | } |
150 | | |
151 | | /*! |
152 | | \internal |
153 | | */ |
154 | | static qlonglong qMetaTypeNumber(const QVariant::Private *d) |
155 | 0 | { |
156 | 0 | switch (d->type) { |
157 | 0 | case QMetaType::Int: |
158 | 0 | return d->data.i; |
159 | 0 | case QMetaType::LongLong: |
160 | 0 | return d->data.ll; |
161 | 0 | case QMetaType::Char: |
162 | 0 | return qlonglong(d->data.c); |
163 | 0 | case QMetaType::SChar: |
164 | 0 | return qlonglong(d->data.sc); |
165 | 0 | case QMetaType::Short: |
166 | 0 | return qlonglong(d->data.s); |
167 | 0 | case QMetaType::Long: |
168 | 0 | return qlonglong(d->data.l); |
169 | 0 | case QMetaType::Float: |
170 | 0 | return qRound64(d->data.f); |
171 | 0 | case QMetaType::Double: |
172 | 0 | return qRound64(d->data.d); |
173 | 0 | #ifndef QT_BOOTSTRAPPED |
174 | 0 | case QMetaType::QJsonValue: |
175 | 0 | return v_cast<QJsonValue>(d)->toDouble(); |
176 | 0 | case QMetaType::QCborValue: |
177 | 0 | return v_cast<QCborValue>(d)->toInteger(); |
178 | 0 | #endif |
179 | 0 | } |
180 | 0 | Q_ASSERT(false); |
181 | 0 | return 0; |
182 | 0 | } |
183 | | |
184 | | static qulonglong qMetaTypeUNumber(const QVariant::Private *d) |
185 | 0 | { |
186 | 0 | switch (d->type) { |
187 | 0 | case QMetaType::UInt: |
188 | 0 | return d->data.u; |
189 | 0 | case QMetaType::ULongLong: |
190 | 0 | return d->data.ull; |
191 | 0 | case QMetaType::UChar: |
192 | 0 | return d->data.uc; |
193 | 0 | case QMetaType::UShort: |
194 | 0 | return d->data.us; |
195 | 0 | case QMetaType::ULong: |
196 | 0 | return d->data.ul; |
197 | 0 | } |
198 | 0 | Q_ASSERT(false); |
199 | 0 | return 0; |
200 | 0 | } |
201 | | |
202 | | static qlonglong qConvertToNumber(const QVariant::Private *d, bool *ok) |
203 | 0 | { |
204 | 0 | *ok = true; |
205 | |
|
206 | 0 | switch (uint(d->type)) { |
207 | 0 | case QMetaType::QString: |
208 | 0 | return v_cast<QString>(d)->toLongLong(ok); |
209 | 0 | case QMetaType::QChar: |
210 | 0 | return v_cast<QChar>(d)->unicode(); |
211 | 0 | case QMetaType::QByteArray: |
212 | 0 | return v_cast<QByteArray>(d)->toLongLong(ok); |
213 | 0 | case QMetaType::Bool: |
214 | 0 | return qlonglong(d->data.b); |
215 | 0 | #ifndef QT_BOOTSTRAPPED |
216 | 0 | case QMetaType::QCborValue: |
217 | 0 | if (!v_cast<QCborValue>(d)->isInteger() && !v_cast<QCborValue>(d)->isDouble()) |
218 | 0 | break; |
219 | 0 | return qMetaTypeNumber(d); |
220 | 0 | case QMetaType::QJsonValue: |
221 | 0 | if (!v_cast<QJsonValue>(d)->isDouble()) |
222 | 0 | break; |
223 | 0 | Q_FALLTHROUGH(); |
224 | 0 | #endif |
225 | 0 | case QMetaType::Double: |
226 | 0 | case QMetaType::Int: |
227 | 0 | case QMetaType::Char: |
228 | 0 | case QMetaType::SChar: |
229 | 0 | case QMetaType::Short: |
230 | 0 | case QMetaType::Long: |
231 | 0 | case QMetaType::Float: |
232 | 0 | case QMetaType::LongLong: |
233 | 0 | return qMetaTypeNumber(d); |
234 | 0 | case QMetaType::ULongLong: |
235 | 0 | case QMetaType::UInt: |
236 | 0 | case QMetaType::UChar: |
237 | 0 | case QMetaType::UShort: |
238 | 0 | case QMetaType::ULong: |
239 | |
|
240 | 0 | return qlonglong(qMetaTypeUNumber(d)); |
241 | 0 | } |
242 | | |
243 | 0 | QMetaType typeInfo(d->type); |
244 | 0 | if (typeInfo.flags() & QMetaType::IsEnumeration || d->type == QMetaType::QCborSimpleType) { |
245 | 0 | switch (typeInfo.sizeOf()) { |
246 | 0 | case 1: |
247 | 0 | return d->is_shared ? *reinterpret_cast<signed char *>(d->data.shared->ptr) : d->data.sc; |
248 | 0 | case 2: |
249 | 0 | return d->is_shared ? *reinterpret_cast<qint16 *>(d->data.shared->ptr) : d->data.s; |
250 | 0 | case 4: |
251 | 0 | return d->is_shared ? *reinterpret_cast<qint32 *>(d->data.shared->ptr) : d->data.i; |
252 | 0 | case 8: |
253 | 0 | return d->is_shared ? *reinterpret_cast<qint64 *>(d->data.shared->ptr) : d->data.ll; |
254 | 0 | } |
255 | 0 | } |
256 | | |
257 | 0 | *ok = false; |
258 | 0 | return Q_INT64_C(0); |
259 | 0 | } |
260 | | |
261 | | static qreal qConvertToRealNumber(const QVariant::Private *d, bool *ok) |
262 | 0 | { |
263 | 0 | *ok = true; |
264 | 0 | switch (uint(d->type)) { |
265 | 0 | case QMetaType::Double: |
266 | 0 | return qreal(d->data.d); |
267 | 0 | case QMetaType::Float: |
268 | 0 | return qreal(d->data.f); |
269 | 0 | case QMetaType::ULongLong: |
270 | 0 | case QMetaType::UInt: |
271 | 0 | case QMetaType::UChar: |
272 | 0 | case QMetaType::UShort: |
273 | 0 | case QMetaType::ULong: |
274 | 0 | return qreal(qMetaTypeUNumber(d)); |
275 | 0 | #ifndef QT_BOOTSTRAPPED |
276 | 0 | case QMetaType::QCborValue: |
277 | 0 | return v_cast<QCborValue>(d)->toDouble(); |
278 | 0 | case QMetaType::QJsonValue: |
279 | 0 | return v_cast<QJsonValue>(d)->toDouble(); |
280 | 0 | #endif |
281 | 0 | default: |
282 | | // includes enum conversion as well as invalid types |
283 | 0 | return qreal(qConvertToNumber(d, ok)); |
284 | 0 | } |
285 | 0 | } |
286 | | |
287 | | static qulonglong qConvertToUnsignedNumber(const QVariant::Private *d, bool *ok) |
288 | 0 | { |
289 | 0 | *ok = true; |
290 | |
|
291 | 0 | switch (uint(d->type)) { |
292 | 0 | case QMetaType::QString: |
293 | 0 | return v_cast<QString>(d)->toULongLong(ok); |
294 | 0 | case QMetaType::QChar: |
295 | 0 | return v_cast<QChar>(d)->unicode(); |
296 | 0 | case QMetaType::QByteArray: |
297 | 0 | return v_cast<QByteArray>(d)->toULongLong(ok); |
298 | 0 | case QMetaType::Bool: |
299 | 0 | return qulonglong(d->data.b); |
300 | 0 | #ifndef QT_BOOTSTRAPPED |
301 | 0 | case QMetaType::QCborValue: |
302 | 0 | if (v_cast<QCborValue>(d)->isDouble()) |
303 | 0 | return qulonglong(qConvertToRealNumber(d, ok)); |
304 | 0 | if (!v_cast<QCborValue>(d)->isInteger()) |
305 | 0 | return false; |
306 | 0 | return qulonglong(qMetaTypeNumber(d)); |
307 | 0 | case QMetaType::QJsonValue: |
308 | 0 | if (!v_cast<QJsonValue>(d)->isDouble()) |
309 | 0 | break; |
310 | 0 | Q_FALLTHROUGH(); |
311 | 0 | #endif |
312 | 0 | case QMetaType::Double: |
313 | 0 | case QMetaType::Int: |
314 | 0 | case QMetaType::Char: |
315 | 0 | case QMetaType::SChar: |
316 | 0 | case QMetaType::Short: |
317 | 0 | case QMetaType::Long: |
318 | 0 | case QMetaType::Float: |
319 | 0 | case QMetaType::LongLong: |
320 | 0 | return qulonglong(qMetaTypeNumber(d)); |
321 | 0 | case QMetaType::ULongLong: |
322 | 0 | case QMetaType::UInt: |
323 | 0 | case QMetaType::UChar: |
324 | 0 | case QMetaType::UShort: |
325 | 0 | case QMetaType::ULong: |
326 | 0 | return qMetaTypeUNumber(d); |
327 | 0 | } |
328 | | |
329 | 0 | QMetaType typeInfo(d->type); |
330 | 0 | if (typeInfo.flags() & QMetaType::IsEnumeration) { |
331 | 0 | switch (typeInfo.sizeOf()) { |
332 | 0 | case 1: |
333 | 0 | return d->is_shared ? *reinterpret_cast<uchar *>(d->data.shared->ptr) : d->data.uc; |
334 | 0 | case 2: |
335 | 0 | return d->is_shared ? *reinterpret_cast<quint16 *>(d->data.shared->ptr) : d->data.us; |
336 | 0 | case 4: |
337 | 0 | return d->is_shared ? *reinterpret_cast<quint32 *>(d->data.shared->ptr) : d->data.u; |
338 | 0 | case 8: |
339 | 0 | return d->is_shared ? *reinterpret_cast<qint64 *>(d->data.shared->ptr) : d->data.ull; |
340 | 0 | } |
341 | 0 | } |
342 | | |
343 | 0 | *ok = false; |
344 | 0 | return Q_UINT64_C(0); |
345 | 0 | } |
346 | | |
347 | | template<typename TInput, typename LiteralWrapper> |
348 | | inline bool qt_convertToBool(const QVariant::Private *const d) |
349 | 0 | { |
350 | 0 | TInput str = v_cast<TInput>(d)->toLower(); |
351 | 0 | return !(str.isEmpty() || str == LiteralWrapper("0") || str == LiteralWrapper("false")); |
352 | 0 | } Unexecuted instantiation: qvariant.cpp:bool (anonymous namespace)::qt_convertToBool<QByteArray, char const*>(QVariant::Private const*) Unexecuted instantiation: qvariant.cpp:bool (anonymous namespace)::qt_convertToBool<QString, QLatin1String>(QVariant::Private const*) |
353 | | |
354 | | /*! |
355 | | \internal |
356 | | Returns the internal data pointer from \a d. |
357 | | */ |
358 | | |
359 | | static const void *constData(const QVariant::Private &d) |
360 | 0 | { |
361 | 0 | return d.is_shared ? d.data.shared->ptr : reinterpret_cast<const void *>(&d.data.c); |
362 | 0 | } |
363 | | |
364 | | #ifndef QT_NO_QOBJECT |
365 | | /*! |
366 | | \internal |
367 | | returns a QMetaEnum for a given meta tape type id if possible |
368 | | */ |
369 | | static QMetaEnum metaEnumFromType(int type) |
370 | 0 | { |
371 | 0 | QMetaType t(type); |
372 | 0 | if (t.flags() & QMetaType::IsEnumeration) { |
373 | 0 | if (const QMetaObject *metaObject = t.metaObject()) { |
374 | 0 | const char *enumName = QMetaType::typeName(type); |
375 | 0 | const char *lastColon = std::strrchr(enumName, ':'); |
376 | 0 | if (lastColon) |
377 | 0 | enumName = lastColon + 1; |
378 | 0 | return metaObject->enumerator(metaObject->indexOfEnumerator(enumName)); |
379 | 0 | } |
380 | 0 | } |
381 | 0 | return QMetaEnum(); |
382 | 0 | } |
383 | | #endif |
384 | | |
385 | | /*! |
386 | | \internal |
387 | | |
388 | | Converts \a d to type \a t, which is placed in \a result. |
389 | | */ |
390 | | static bool convert(const QVariant::Private *d, int t, void *result, bool *ok) |
391 | 10 | { |
392 | 10 | Q_ASSERT(d->type != uint(t)); |
393 | 10 | Q_ASSERT(result); |
394 | | |
395 | 10 | if (d->type >= QMetaType::User || t >= QMetaType::User) { |
396 | 0 | const bool isOk = QMetaType::convert(constData(*d), d->type, result, t); |
397 | 0 | if (ok) |
398 | 0 | *ok = isOk; |
399 | 0 | if (isOk) |
400 | 0 | return true; |
401 | 0 | } |
402 | | |
403 | 10 | bool dummy; |
404 | 10 | if (!ok) |
405 | 10 | ok = &dummy; |
406 | | |
407 | 10 | switch (uint(t)) { |
408 | 0 | #ifndef QT_BOOTSTRAPPED |
409 | 0 | case QMetaType::QUrl: |
410 | 0 | switch (d->type) { |
411 | 0 | case QMetaType::QString: |
412 | 0 | *static_cast<QUrl *>(result) = QUrl(*v_cast<QString>(d)); |
413 | 0 | break; |
414 | 0 | case QMetaType::QCborValue: |
415 | 0 | if (v_cast<QCborValue>(d)->isUrl()) { |
416 | 0 | *static_cast<QUrl *>(result) = v_cast<QCborValue>(d)->toUrl(); |
417 | 0 | break; |
418 | 0 | } |
419 | 0 | return false; |
420 | 0 | default: |
421 | 0 | return false; |
422 | 0 | } |
423 | 0 | break; |
424 | 0 | #endif // QT_BOOTSTRAPPED |
425 | 0 | #if QT_CONFIG(itemmodel) |
426 | 0 | case QMetaType::QModelIndex: |
427 | 0 | switch (d->type) { |
428 | 0 | case QMetaType::QPersistentModelIndex: |
429 | 0 | *static_cast<QModelIndex *>(result) = QModelIndex(*v_cast<QPersistentModelIndex>(d)); |
430 | 0 | break; |
431 | 0 | default: |
432 | 0 | return false; |
433 | 0 | } |
434 | 0 | break; |
435 | 0 | case QMetaType::QPersistentModelIndex: |
436 | 0 | switch (d->type) { |
437 | 0 | case QMetaType::QModelIndex: |
438 | 0 | *static_cast<QPersistentModelIndex *>(result) = QPersistentModelIndex(*v_cast<QModelIndex>(d)); |
439 | 0 | break; |
440 | 0 | default: |
441 | 0 | return false; |
442 | 0 | } |
443 | 0 | break; |
444 | 0 | #endif // QT_CONFIG(itemmodel) |
445 | 10 | case QMetaType::QString: { |
446 | 10 | QString *str = static_cast<QString *>(result); |
447 | 10 | switch (d->type) { |
448 | 10 | case QMetaType::QChar: |
449 | 10 | *str = *v_cast<QChar>(d); |
450 | 10 | break; |
451 | 0 | case QMetaType::Char: |
452 | 0 | case QMetaType::SChar: |
453 | 0 | case QMetaType::UChar: |
454 | 0 | *str = QChar::fromLatin1(d->data.c); |
455 | 0 | break; |
456 | 0 | case QMetaType::Short: |
457 | 0 | case QMetaType::Long: |
458 | 0 | case QMetaType::Int: |
459 | 0 | case QMetaType::LongLong: |
460 | 0 | *str = QString::number(qMetaTypeNumber(d)); |
461 | 0 | break; |
462 | 0 | case QMetaType::UInt: |
463 | 0 | case QMetaType::ULongLong: |
464 | 0 | case QMetaType::UShort: |
465 | 0 | case QMetaType::ULong: |
466 | 0 | *str = QString::number(qMetaTypeUNumber(d)); |
467 | 0 | break; |
468 | 0 | case QMetaType::Float: |
469 | 0 | *str = QString::number(d->data.f, 'g', QLocale::FloatingPointShortest); |
470 | 0 | break; |
471 | 0 | case QMetaType::Double: |
472 | 0 | *str = QString::number(d->data.d, 'g', QLocale::FloatingPointShortest); |
473 | 0 | break; |
474 | 0 | #if QT_CONFIG(datestring) |
475 | 0 | case QMetaType::QDate: |
476 | 0 | *str = v_cast<QDate>(d)->toString(Qt::ISODate); |
477 | 0 | break; |
478 | 0 | case QMetaType::QTime: |
479 | 0 | *str = v_cast<QTime>(d)->toString(Qt::ISODateWithMs); |
480 | 0 | break; |
481 | 0 | case QMetaType::QDateTime: |
482 | 0 | *str = v_cast<QDateTime>(d)->toString(Qt::ISODateWithMs); |
483 | 0 | break; |
484 | 0 | #endif |
485 | 0 | case QMetaType::Bool: |
486 | 0 | *str = d->data.b ? QStringLiteral("true") : QStringLiteral("false"); |
487 | 0 | break; |
488 | 0 | case QMetaType::QByteArray: |
489 | 0 | *str = QString::fromUtf8(v_cast<QByteArray>(d)->constData()); |
490 | 0 | break; |
491 | 0 | case QMetaType::QStringList: |
492 | 0 | if (v_cast<QStringList>(d)->count() == 1) |
493 | 0 | *str = v_cast<QStringList>(d)->at(0); |
494 | 0 | break; |
495 | 0 | #ifndef QT_BOOTSTRAPPED |
496 | 0 | case QMetaType::QUrl: |
497 | 0 | *str = v_cast<QUrl>(d)->toString(); |
498 | 0 | break; |
499 | 0 | case QMetaType::QJsonValue: |
500 | 0 | if (v_cast<QJsonValue>(d)->isString()) |
501 | 0 | *str = v_cast<QJsonValue>(d)->toString(); |
502 | 0 | else if (!v_cast<QJsonValue>(d)->isNull()) |
503 | 0 | return false; |
504 | 0 | break; |
505 | 0 | case QMetaType::QCborValue: |
506 | 0 | if (v_cast<QCborValue>(d)->isContainer() || v_cast<QCborValue>(d)->isTag()) |
507 | 0 | return false; |
508 | 0 | *str = v_cast<QCborValue>(d)->toVariant().toString(); |
509 | 0 | break; |
510 | 0 | #endif |
511 | 0 | case QMetaType::QUuid: |
512 | 0 | *str = v_cast<QUuid>(d)->toString(); |
513 | 0 | break; |
514 | 0 | case QMetaType::Nullptr: |
515 | 0 | *str = QString(); |
516 | 0 | break; |
517 | 0 | default: |
518 | 0 | #ifndef QT_NO_QOBJECT |
519 | 0 | { |
520 | 0 | QMetaEnum en = metaEnumFromType(d->type); |
521 | 0 | if (en.isValid()) { |
522 | 0 | *str = QString::fromUtf8(en.valueToKey(qConvertToNumber(d, ok))); |
523 | 0 | return *ok; |
524 | 0 | } |
525 | 0 | } |
526 | 0 | #endif |
527 | 0 | return false; |
528 | 10 | } |
529 | 10 | break; |
530 | 10 | } |
531 | 10 | case QMetaType::QChar: { |
532 | 0 | QChar *c = static_cast<QChar *>(result); |
533 | 0 | switch (d->type) { |
534 | 0 | case QMetaType::Int: |
535 | 0 | case QMetaType::LongLong: |
536 | 0 | case QMetaType::Char: |
537 | 0 | case QMetaType::SChar: |
538 | 0 | case QMetaType::Short: |
539 | 0 | case QMetaType::Long: |
540 | 0 | case QMetaType::Float: |
541 | 0 | *c = QChar(ushort(qMetaTypeNumber(d))); |
542 | 0 | break; |
543 | 0 | case QMetaType::UInt: |
544 | 0 | case QMetaType::ULongLong: |
545 | 0 | case QMetaType::UChar: |
546 | 0 | case QMetaType::UShort: |
547 | 0 | case QMetaType::ULong: |
548 | 0 | *c = QChar(ushort(qMetaTypeUNumber(d))); |
549 | 0 | break; |
550 | 0 | default: |
551 | 0 | return false; |
552 | 0 | } |
553 | 0 | break; |
554 | 0 | } |
555 | 0 | #ifndef QT_NO_GEOM_VARIANT |
556 | 0 | case QMetaType::QSize: { |
557 | 0 | QSize *s = static_cast<QSize *>(result); |
558 | 0 | switch (d->type) { |
559 | 0 | case QMetaType::QSizeF: |
560 | 0 | *s = v_cast<QSizeF>(d)->toSize(); |
561 | 0 | break; |
562 | 0 | default: |
563 | 0 | return false; |
564 | 0 | } |
565 | 0 | break; |
566 | 0 | } |
567 | | |
568 | 0 | case QMetaType::QSizeF: { |
569 | 0 | QSizeF *s = static_cast<QSizeF *>(result); |
570 | 0 | switch (d->type) { |
571 | 0 | case QMetaType::QSize: |
572 | 0 | *s = QSizeF(*(v_cast<QSize>(d))); |
573 | 0 | break; |
574 | 0 | default: |
575 | 0 | return false; |
576 | 0 | } |
577 | 0 | break; |
578 | 0 | } |
579 | | |
580 | 0 | case QMetaType::QLine: { |
581 | 0 | QLine *s = static_cast<QLine *>(result); |
582 | 0 | switch (d->type) { |
583 | 0 | case QMetaType::QLineF: |
584 | 0 | *s = v_cast<QLineF>(d)->toLine(); |
585 | 0 | break; |
586 | 0 | default: |
587 | 0 | return false; |
588 | 0 | } |
589 | 0 | break; |
590 | 0 | } |
591 | | |
592 | 0 | case QMetaType::QLineF: { |
593 | 0 | QLineF *s = static_cast<QLineF *>(result); |
594 | 0 | switch (d->type) { |
595 | 0 | case QMetaType::QLine: |
596 | 0 | *s = QLineF(*(v_cast<QLine>(d))); |
597 | 0 | break; |
598 | 0 | default: |
599 | 0 | return false; |
600 | 0 | } |
601 | 0 | break; |
602 | 0 | } |
603 | 0 | #endif |
604 | 0 | case QMetaType::QStringList: |
605 | 0 | if (d->type == QMetaType::QVariantList) { |
606 | 0 | QStringList *slst = static_cast<QStringList *>(result); |
607 | 0 | const QVariantList *list = v_cast<QVariantList >(d); |
608 | 0 | const int size = list->size(); |
609 | 0 | slst->reserve(size); |
610 | 0 | for (int i = 0; i < size; ++i) |
611 | 0 | slst->append(list->at(i).toString()); |
612 | 0 | } else if (d->type == QMetaType::QString) { |
613 | 0 | QStringList *slst = static_cast<QStringList *>(result); |
614 | 0 | *slst = QStringList(*v_cast<QString>(d)); |
615 | 0 | } else { |
616 | 0 | return false; |
617 | 0 | } |
618 | 0 | break; |
619 | 0 | case QMetaType::QDate: { |
620 | 0 | QDate *dt = static_cast<QDate *>(result); |
621 | 0 | if (d->type == QMetaType::QDateTime) |
622 | 0 | *dt = v_cast<QDateTime>(d)->date(); |
623 | 0 | #if QT_CONFIG(datestring) |
624 | 0 | else if (d->type == QMetaType::QString) |
625 | 0 | *dt = QDate::fromString(*v_cast<QString>(d), Qt::ISODate); |
626 | 0 | #endif |
627 | 0 | else |
628 | 0 | return false; |
629 | | |
630 | 0 | return dt->isValid(); |
631 | 0 | } |
632 | 0 | case QMetaType::QTime: { |
633 | 0 | QTime *t = static_cast<QTime *>(result); |
634 | 0 | switch (d->type) { |
635 | 0 | case QMetaType::QDateTime: |
636 | 0 | *t = v_cast<QDateTime>(d)->time(); |
637 | 0 | break; |
638 | 0 | #if QT_CONFIG(datestring) |
639 | 0 | case QMetaType::QString: |
640 | 0 | *t = QTime::fromString(*v_cast<QString>(d), Qt::ISODate); |
641 | 0 | break; |
642 | 0 | #endif |
643 | 0 | default: |
644 | 0 | return false; |
645 | 0 | } |
646 | 0 | return t->isValid(); |
647 | 0 | } |
648 | 0 | case QMetaType::QDateTime: { |
649 | 0 | QDateTime *dt = static_cast<QDateTime *>(result); |
650 | 0 | switch (d->type) { |
651 | 0 | #if QT_CONFIG(datestring) |
652 | 0 | case QMetaType::QString: |
653 | 0 | *dt = QDateTime::fromString(*v_cast<QString>(d), Qt::ISODate); |
654 | 0 | break; |
655 | 0 | # ifndef QT_BOOTSTRAPPED |
656 | 0 | case QMetaType::QCborValue: |
657 | 0 | if (v_cast<QCborValue>(d)->isDateTime()) |
658 | 0 | *dt = v_cast<QCborValue>(d)->toDateTime(); |
659 | 0 | else |
660 | 0 | return false; |
661 | 0 | break; |
662 | 0 | # endif |
663 | 0 | #endif |
664 | 0 | case QMetaType::QDate: |
665 | 0 | *dt = v_cast<QDate>(d)->startOfDay(); |
666 | 0 | break; |
667 | 0 | default: |
668 | 0 | return false; |
669 | 0 | } |
670 | 0 | return dt->isValid(); |
671 | 0 | } |
672 | 0 | case QMetaType::QByteArray: { |
673 | 0 | QByteArray *ba = static_cast<QByteArray *>(result); |
674 | 0 | switch (d->type) { |
675 | 0 | case QMetaType::QString: |
676 | 0 | *ba = v_cast<QString>(d)->toUtf8(); |
677 | 0 | break; |
678 | 0 | case QMetaType::Double: |
679 | 0 | *ba = QByteArray::number(d->data.d, 'g', QLocale::FloatingPointShortest); |
680 | 0 | break; |
681 | 0 | case QMetaType::Float: |
682 | 0 | *ba = QByteArray::number(d->data.f, 'g', QLocale::FloatingPointShortest); |
683 | 0 | break; |
684 | 0 | case QMetaType::Char: |
685 | 0 | case QMetaType::SChar: |
686 | 0 | case QMetaType::UChar: |
687 | 0 | *ba = QByteArray(1, d->data.c); |
688 | 0 | break; |
689 | 0 | case QMetaType::Int: |
690 | 0 | case QMetaType::LongLong: |
691 | 0 | case QMetaType::Short: |
692 | 0 | case QMetaType::Long: |
693 | 0 | *ba = QByteArray::number(qMetaTypeNumber(d)); |
694 | 0 | break; |
695 | 0 | case QMetaType::UInt: |
696 | 0 | case QMetaType::ULongLong: |
697 | 0 | case QMetaType::UShort: |
698 | 0 | case QMetaType::ULong: |
699 | 0 | *ba = QByteArray::number(qMetaTypeUNumber(d)); |
700 | 0 | break; |
701 | 0 | case QMetaType::Bool: |
702 | 0 | *ba = QByteArray(d->data.b ? "true" : "false"); |
703 | 0 | break; |
704 | 0 | case QMetaType::QUuid: |
705 | 0 | *ba = v_cast<QUuid>(d)->toByteArray(); |
706 | 0 | break; |
707 | 0 | case QMetaType::Nullptr: |
708 | 0 | *ba = QByteArray(); |
709 | 0 | break; |
710 | 0 | #ifndef QT_BOOTSTRAPPED |
711 | 0 | case QMetaType::QCborValue: |
712 | 0 | if (v_cast<QCborValue>(d)->isByteArray()) |
713 | 0 | *ba = v_cast<QCborValue>(d)->toByteArray(); |
714 | 0 | else |
715 | 0 | return false; |
716 | 0 | break; |
717 | 0 | #endif |
718 | 0 | default: |
719 | 0 | #ifndef QT_NO_QOBJECT |
720 | 0 | { |
721 | 0 | QMetaEnum en = metaEnumFromType(d->type); |
722 | 0 | if (en.isValid()) { |
723 | 0 | *ba = en.valueToKey(qConvertToNumber(d, ok)); |
724 | 0 | return *ok; |
725 | 0 | } |
726 | 0 | } |
727 | 0 | #endif |
728 | 0 | return false; |
729 | 0 | } |
730 | 0 | } |
731 | 0 | break; |
732 | 0 | case QMetaType::Short: |
733 | 0 | *static_cast<short *>(result) = short(qConvertToNumber(d, ok)); |
734 | 0 | return *ok; |
735 | 0 | case QMetaType::Long: |
736 | 0 | *static_cast<long *>(result) = long(qConvertToNumber(d, ok)); |
737 | 0 | return *ok; |
738 | 0 | case QMetaType::UShort: |
739 | 0 | *static_cast<ushort *>(result) = ushort(qConvertToUnsignedNumber(d, ok)); |
740 | 0 | return *ok; |
741 | 0 | case QMetaType::ULong: |
742 | 0 | *static_cast<ulong *>(result) = ulong(qConvertToUnsignedNumber(d, ok)); |
743 | 0 | return *ok; |
744 | 0 | case QMetaType::Int: |
745 | 0 | *static_cast<int *>(result) = int(qConvertToNumber(d, ok)); |
746 | 0 | return *ok; |
747 | 0 | case QMetaType::UInt: |
748 | 0 | *static_cast<uint *>(result) = uint(qConvertToUnsignedNumber(d, ok)); |
749 | 0 | return *ok; |
750 | 0 | case QMetaType::LongLong: |
751 | 0 | *static_cast<qlonglong *>(result) = qConvertToNumber(d, ok); |
752 | 0 | return *ok; |
753 | 0 | case QMetaType::ULongLong: { |
754 | 0 | *static_cast<qulonglong *>(result) = qConvertToUnsignedNumber(d, ok); |
755 | 0 | return *ok; |
756 | 0 | } |
757 | 0 | case QMetaType::SChar: { |
758 | 0 | signed char s = qConvertToNumber(d, ok); |
759 | 0 | *static_cast<signed char*>(result) = s; |
760 | 0 | return *ok; |
761 | 0 | } |
762 | 0 | case QMetaType::UChar: { |
763 | 0 | *static_cast<uchar *>(result) = qConvertToUnsignedNumber(d, ok); |
764 | 0 | return *ok; |
765 | 0 | } |
766 | 0 | case QMetaType::Bool: { |
767 | 0 | bool *b = static_cast<bool *>(result); |
768 | 0 | switch(d->type) { |
769 | 0 | case QMetaType::QByteArray: |
770 | 0 | *b = qt_convertToBool<QByteArray, const char*>(d); |
771 | 0 | break; |
772 | 0 | case QMetaType::QString: |
773 | 0 | *b = qt_convertToBool<QString, QLatin1String>(d); |
774 | 0 | break; |
775 | 0 | case QMetaType::QChar: |
776 | 0 | *b = !v_cast<QChar>(d)->isNull(); |
777 | 0 | break; |
778 | 0 | case QMetaType::Double: |
779 | 0 | case QMetaType::Int: |
780 | 0 | case QMetaType::LongLong: |
781 | 0 | case QMetaType::Char: |
782 | 0 | case QMetaType::SChar: |
783 | 0 | case QMetaType::Short: |
784 | 0 | case QMetaType::Long: |
785 | 0 | case QMetaType::Float: |
786 | 0 | *b = qMetaTypeNumber(d) != Q_INT64_C(0); |
787 | 0 | break; |
788 | 0 | case QMetaType::UInt: |
789 | 0 | case QMetaType::ULongLong: |
790 | 0 | case QMetaType::UChar: |
791 | 0 | case QMetaType::UShort: |
792 | 0 | case QMetaType::ULong: |
793 | 0 | *b = qMetaTypeUNumber(d) != Q_UINT64_C(0); |
794 | 0 | break; |
795 | 0 | #ifndef QT_BOOTSTRAPPED |
796 | 0 | case QMetaType::QCborValue: |
797 | 0 | *b = v_cast<QCborValue>(d)->toBool(); |
798 | 0 | if (!v_cast<QCborValue>(d)->isBool()) |
799 | 0 | return false; |
800 | 0 | break; |
801 | 0 | case QMetaType::QJsonValue: |
802 | 0 | *b = v_cast<QJsonValue>(d)->toBool(false); |
803 | 0 | if (!v_cast<QJsonValue>(d)->isBool()) |
804 | 0 | return false; |
805 | 0 | break; |
806 | 0 | #endif |
807 | 0 | default: |
808 | 0 | *b = false; |
809 | 0 | return false; |
810 | 0 | } |
811 | 0 | break; |
812 | 0 | } |
813 | 0 | case QMetaType::Double: { |
814 | 0 | double *f = static_cast<double *>(result); |
815 | 0 | switch (d->type) { |
816 | 0 | case QMetaType::QString: |
817 | 0 | *f = v_cast<QString>(d)->toDouble(ok); |
818 | 0 | break; |
819 | 0 | case QMetaType::QByteArray: |
820 | 0 | *f = v_cast<QByteArray>(d)->toDouble(ok); |
821 | 0 | break; |
822 | 0 | case QMetaType::Bool: |
823 | 0 | *f = double(d->data.b); |
824 | 0 | break; |
825 | 0 | case QMetaType::Float: |
826 | 0 | *f = double(d->data.f); |
827 | 0 | break; |
828 | 0 | case QMetaType::LongLong: |
829 | 0 | case QMetaType::Int: |
830 | 0 | case QMetaType::Char: |
831 | 0 | case QMetaType::SChar: |
832 | 0 | case QMetaType::Short: |
833 | 0 | case QMetaType::Long: |
834 | 0 | *f = double(qMetaTypeNumber(d)); |
835 | 0 | break; |
836 | 0 | case QMetaType::UInt: |
837 | 0 | case QMetaType::ULongLong: |
838 | 0 | case QMetaType::UChar: |
839 | 0 | case QMetaType::UShort: |
840 | 0 | case QMetaType::ULong: |
841 | 0 | *f = double(qMetaTypeUNumber(d)); |
842 | 0 | break; |
843 | 0 | #ifndef QT_BOOTSTRAPPED |
844 | 0 | case QMetaType::QCborValue: |
845 | 0 | *f = v_cast<QCborValue>(d)->toDouble(); |
846 | 0 | if (!v_cast<QCborValue>(d)->isDouble()) |
847 | 0 | return false; |
848 | 0 | break; |
849 | 0 | case QMetaType::QJsonValue: |
850 | 0 | *f = v_cast<QJsonValue>(d)->toDouble(0.0); |
851 | 0 | if (!v_cast<QJsonValue>(d)->isDouble()) |
852 | 0 | return false; |
853 | 0 | break; |
854 | 0 | #endif |
855 | 0 | default: |
856 | 0 | *f = 0.0; |
857 | 0 | return false; |
858 | 0 | } |
859 | 0 | break; |
860 | 0 | } |
861 | 0 | case QMetaType::Float: { |
862 | 0 | float *f = static_cast<float *>(result); |
863 | 0 | switch (d->type) { |
864 | 0 | case QMetaType::QString: |
865 | 0 | *f = v_cast<QString>(d)->toFloat(ok); |
866 | 0 | break; |
867 | 0 | case QMetaType::QByteArray: |
868 | 0 | *f = v_cast<QByteArray>(d)->toFloat(ok); |
869 | 0 | break; |
870 | 0 | case QMetaType::Bool: |
871 | 0 | *f = float(d->data.b); |
872 | 0 | break; |
873 | 0 | case QMetaType::Double: |
874 | 0 | *f = float(d->data.d); |
875 | 0 | break; |
876 | 0 | case QMetaType::LongLong: |
877 | 0 | case QMetaType::Int: |
878 | 0 | case QMetaType::Char: |
879 | 0 | case QMetaType::SChar: |
880 | 0 | case QMetaType::Short: |
881 | 0 | case QMetaType::Long: |
882 | 0 | *f = float(qMetaTypeNumber(d)); |
883 | 0 | break; |
884 | 0 | case QMetaType::UInt: |
885 | 0 | case QMetaType::ULongLong: |
886 | 0 | case QMetaType::UChar: |
887 | 0 | case QMetaType::UShort: |
888 | 0 | case QMetaType::ULong: |
889 | 0 | *f = float(qMetaTypeUNumber(d)); |
890 | 0 | break; |
891 | 0 | #ifndef QT_BOOTSTRAPPED |
892 | 0 | case QMetaType::QCborValue: |
893 | 0 | *f = v_cast<QCborValue>(d)->toDouble(); |
894 | 0 | if (!v_cast<QCborValue>(d)->isDouble()) |
895 | 0 | return false; |
896 | 0 | break; |
897 | 0 | case QMetaType::QJsonValue: |
898 | 0 | *f = v_cast<QJsonValue>(d)->toDouble(0.0); |
899 | 0 | if (!v_cast<QJsonValue>(d)->isDouble()) |
900 | 0 | return false; |
901 | 0 | break; |
902 | 0 | #endif |
903 | 0 | default: |
904 | 0 | *f = 0.0f; |
905 | 0 | return false; |
906 | 0 | } |
907 | 0 | break; |
908 | 0 | } |
909 | 0 | case QMetaType::QVariantList: |
910 | 0 | if (d->type == QMetaType::QStringList) { |
911 | 0 | QVariantList *lst = static_cast<QVariantList *>(result); |
912 | 0 | const QStringList *slist = v_cast<QStringList>(d); |
913 | 0 | const int size = slist->size(); |
914 | 0 | lst->reserve(size); |
915 | 0 | for (int i = 0; i < size; ++i) |
916 | 0 | lst->append(QVariant(slist->at(i))); |
917 | 0 | } else if (qstrcmp(QMetaType::typeName(d->type), "QList<QVariant>") == 0) { |
918 | 0 | *static_cast<QVariantList *>(result) = |
919 | 0 | *static_cast<QList<QVariant> *>(d->data.shared->ptr); |
920 | 0 | #ifndef QT_BOOTSTRAPPED |
921 | 0 | } else if (d->type == QMetaType::QCborValue) { |
922 | 0 | if (!v_cast<QCborValue>(d)->isArray()) |
923 | 0 | return false; |
924 | 0 | *static_cast<QVariantList *>(result) = v_cast<QCborValue>(d)->toArray().toVariantList(); |
925 | 0 | } else if (d->type == QMetaType::QCborArray) { |
926 | 0 | *static_cast<QVariantList *>(result) = v_cast<QCborArray>(d)->toVariantList(); |
927 | 0 | } else if (d->type == QMetaType::QJsonValue) { |
928 | 0 | if (!v_cast<QJsonValue>(d)->isArray()) |
929 | 0 | return false; |
930 | 0 | *static_cast<QVariantList *>(result) = v_cast<QJsonValue>(d)->toArray().toVariantList(); |
931 | 0 | } else if (d->type == QMetaType::QJsonArray) { |
932 | 0 | *static_cast<QVariantList *>(result) = v_cast<QJsonArray>(d)->toVariantList(); |
933 | 0 | #endif |
934 | 0 | } else { |
935 | 0 | return false; |
936 | 0 | } |
937 | 0 | break; |
938 | 0 | case QMetaType::QVariantMap: |
939 | 0 | if (qstrcmp(QMetaType::typeName(d->type), "QMap<QString, QVariant>") == 0) { |
940 | 0 | *static_cast<QVariantMap *>(result) = |
941 | 0 | *static_cast<QMap<QString, QVariant> *>(d->data.shared->ptr); |
942 | 0 | } else if (d->type == QMetaType::QVariantHash) { |
943 | 0 | QVariantMap *map = static_cast<QVariantMap *>(result); |
944 | 0 | const QVariantHash *hash = v_cast<QVariantHash>(d); |
945 | 0 | const auto end = hash->end(); |
946 | 0 | for (auto it = hash->begin(); it != end; ++it) |
947 | 0 | static_cast<QMultiMap<QString, QVariant> *>(map)->insert(it.key(), it.value()); |
948 | 0 | #ifndef QT_BOOTSTRAPPED |
949 | 0 | } else if (d->type == QMetaType::QCborValue) { |
950 | 0 | if (!v_cast<QCborValue>(d)->isMap()) |
951 | 0 | return false; |
952 | 0 | *static_cast<QVariantMap *>(result) = v_cast<QCborValue>(d)->toMap().toVariantMap(); |
953 | 0 | } else if (d->type == QMetaType::QCborMap) { |
954 | 0 | *static_cast<QVariantMap *>(result) = v_cast<QCborMap>(d)->toVariantMap(); |
955 | 0 | } else if (d->type == QMetaType::QJsonValue) { |
956 | 0 | if (!v_cast<QJsonValue>(d)->isObject()) |
957 | 0 | return false; |
958 | 0 | *static_cast<QVariantMap *>(result) = v_cast<QJsonValue>(d)->toObject().toVariantMap(); |
959 | 0 | } else if (d->type == QMetaType::QJsonObject) { |
960 | 0 | *static_cast<QVariantMap *>(result) = v_cast<QJsonObject>(d)->toVariantMap(); |
961 | 0 | #endif |
962 | 0 | } else { |
963 | 0 | return false; |
964 | 0 | } |
965 | 0 | break; |
966 | 0 | case QMetaType::QVariantHash: |
967 | 0 | if (qstrcmp(QMetaType::typeName(d->type), "QHash<QString, QVariant>") == 0) { |
968 | 0 | *static_cast<QVariantHash *>(result) = |
969 | 0 | *static_cast<QHash<QString, QVariant> *>(d->data.shared->ptr); |
970 | 0 | } else if (d->type == QMetaType::QVariantMap) { |
971 | 0 | QVariantHash *hash = static_cast<QVariantHash *>(result); |
972 | 0 | const QVariantMap *map = v_cast<QVariantMap>(d); |
973 | 0 | const auto end = map->end(); |
974 | 0 | for (auto it = map->begin(); it != end; ++it) |
975 | 0 | static_cast<QMultiHash<QString, QVariant> *>(hash)->insert(it.key(), it.value()); |
976 | 0 | #ifndef QT_BOOTSTRAPPED |
977 | 0 | } else if (d->type == QMetaType::QCborValue) { |
978 | 0 | if (!v_cast<QCborValue>(d)->isMap()) |
979 | 0 | return false; |
980 | 0 | *static_cast<QVariantHash *>(result) = v_cast<QCborValue>(d)->toMap().toVariantHash(); |
981 | 0 | } else if (d->type == QMetaType::QCborMap) { |
982 | 0 | *static_cast<QVariantHash *>(result) = v_cast<QCborMap>(d)->toVariantHash(); |
983 | 0 | } else if (d->type == QMetaType::QJsonValue) { |
984 | 0 | if (!v_cast<QJsonValue>(d)->isObject()) |
985 | 0 | return false; |
986 | 0 | *static_cast<QVariantHash *>(result) = v_cast<QJsonValue>(d)->toObject().toVariantHash(); |
987 | 0 | } else if (d->type == QMetaType::QJsonObject) { |
988 | 0 | *static_cast<QVariantHash *>(result) = v_cast<QJsonObject>(d)->toVariantHash(); |
989 | 0 | #endif |
990 | 0 | } else { |
991 | 0 | return false; |
992 | 0 | } |
993 | 0 | break; |
994 | 0 | #ifndef QT_NO_GEOM_VARIANT |
995 | 0 | case QMetaType::QRect: |
996 | 0 | if (d->type == QMetaType::QRectF) |
997 | 0 | *static_cast<QRect *>(result) = (v_cast<QRectF>(d))->toRect(); |
998 | 0 | else |
999 | 0 | return false; |
1000 | 0 | break; |
1001 | 0 | case QMetaType::QRectF: |
1002 | 0 | if (d->type == QMetaType::QRect) |
1003 | 0 | *static_cast<QRectF *>(result) = *v_cast<QRect>(d); |
1004 | 0 | else |
1005 | 0 | return false; |
1006 | 0 | break; |
1007 | 0 | case QMetaType::QPointF: |
1008 | 0 | if (d->type == QMetaType::QPoint) |
1009 | 0 | *static_cast<QPointF *>(result) = *v_cast<QPoint>(d); |
1010 | 0 | else |
1011 | 0 | return false; |
1012 | 0 | break; |
1013 | 0 | case QMetaType::QPoint: |
1014 | 0 | if (d->type == QMetaType::QPointF) |
1015 | 0 | *static_cast<QPoint *>(result) = (v_cast<QPointF>(d))->toPoint(); |
1016 | 0 | else |
1017 | 0 | return false; |
1018 | 0 | break; |
1019 | 0 | case QMetaType::Char: |
1020 | 0 | { |
1021 | 0 | *static_cast<qint8 *>(result) = qint8(qConvertToNumber(d, ok)); |
1022 | 0 | return *ok; |
1023 | 0 | } |
1024 | 0 | #endif |
1025 | 0 | case QMetaType::QUuid: |
1026 | 0 | switch (d->type) { |
1027 | 0 | case QMetaType::QString: |
1028 | 0 | *static_cast<QUuid *>(result) = QUuid(*v_cast<QString>(d)); |
1029 | 0 | break; |
1030 | 0 | case QMetaType::QByteArray: |
1031 | 0 | *static_cast<QUuid *>(result) = QUuid(*v_cast<QByteArray>(d)); |
1032 | 0 | break; |
1033 | 0 | #ifndef QT_BOOTSTRAPPED |
1034 | 0 | case QMetaType::QCborValue: |
1035 | 0 | if (!v_cast<QCborValue>(d)->isUuid()) |
1036 | 0 | return false; |
1037 | 0 | *static_cast<QUuid *>(result) = v_cast<QCborValue>(d)->toUuid(); |
1038 | 0 | break; |
1039 | 0 | #endif |
1040 | 0 | default: |
1041 | 0 | return false; |
1042 | 0 | } |
1043 | 0 | break; |
1044 | 0 | case QMetaType::Nullptr: |
1045 | 0 | *static_cast<std::nullptr_t *>(result) = nullptr; |
1046 | 0 | if (QMetaType::typeFlags(t) & (QMetaType::PointerToGadget | QMetaType::PointerToQObject) |
1047 | 0 | || d->type == QMetaType::VoidStar) { |
1048 | 0 | if (v_cast<const void *>(d) == nullptr) |
1049 | 0 | break; |
1050 | 0 | } |
1051 | 0 | #ifndef QT_BOOTSTRAPPED |
1052 | 0 | if (d->type == QMetaType::QCborValue && v_cast<QCborValue>(d)->isNull()) |
1053 | 0 | break; |
1054 | 0 | #endif |
1055 | 0 | return false; |
1056 | | |
1057 | 0 | #ifndef QT_BOOTSTRAPPED |
1058 | 0 | #if QT_CONFIG(regularexpression) |
1059 | 0 | case QMetaType::QRegularExpression: |
1060 | 0 | if (d->type != QMetaType::QCborValue || !v_cast<QCborValue>(d)->isRegularExpression()) |
1061 | 0 | return false; |
1062 | 0 | *static_cast<QRegularExpression *>(result) = v_cast<QCborValue>(d)->toRegularExpression(); |
1063 | 0 | break; |
1064 | 0 | #endif |
1065 | 0 | case QMetaType::QJsonValue: |
1066 | 0 | switch (d->type) { |
1067 | 0 | case QMetaType::Nullptr: |
1068 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonValue::Null); |
1069 | 0 | break; |
1070 | 0 | case QMetaType::Bool: |
1071 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(d->data.b); |
1072 | 0 | break; |
1073 | 0 | case QMetaType::Int: |
1074 | 0 | case QMetaType::UInt: |
1075 | 0 | case QMetaType::Double: |
1076 | 0 | case QMetaType::Float: |
1077 | 0 | case QMetaType::ULong: |
1078 | 0 | case QMetaType::Long: |
1079 | 0 | case QMetaType::LongLong: |
1080 | 0 | case QMetaType::ULongLong: |
1081 | 0 | case QMetaType::UShort: |
1082 | 0 | case QMetaType::UChar: |
1083 | 0 | case QMetaType::Char: |
1084 | 0 | case QMetaType::SChar: |
1085 | 0 | case QMetaType::Short: |
1086 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(qConvertToRealNumber(d, ok)); |
1087 | 0 | Q_ASSERT(ok); |
1088 | 0 | break; |
1089 | 0 | case QMetaType::QString: |
1090 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(*v_cast<QString>(d)); |
1091 | 0 | break; |
1092 | 0 | case QMetaType::QStringList: |
1093 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonArray::fromStringList(*v_cast<QStringList>(d))); |
1094 | 0 | break; |
1095 | 0 | case QMetaType::QVariantList: |
1096 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonArray::fromVariantList(*v_cast<QVariantList>(d))); |
1097 | 0 | break; |
1098 | 0 | case QMetaType::QVariantMap: |
1099 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonObject::fromVariantMap(*v_cast<QVariantMap>(d))); |
1100 | 0 | break; |
1101 | 0 | case QMetaType::QVariantHash: |
1102 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonObject::fromVariantHash(*v_cast<QVariantHash>(d))); |
1103 | 0 | break; |
1104 | 0 | case QMetaType::QJsonObject: |
1105 | 0 | *static_cast<QJsonValue *>(result) = *v_cast<QJsonObject>(d); |
1106 | 0 | break; |
1107 | 0 | case QMetaType::QJsonArray: |
1108 | 0 | *static_cast<QJsonValue *>(result) = *v_cast<QJsonArray>(d); |
1109 | 0 | break; |
1110 | 0 | case QMetaType::QJsonDocument: { |
1111 | 0 | QJsonDocument doc = *v_cast<QJsonDocument>(d); |
1112 | 0 | *static_cast<QJsonValue *>(result) = doc.isArray() ? QJsonValue(doc.array()) : QJsonValue(doc.object()); |
1113 | 0 | break; |
1114 | 0 | } |
1115 | 0 | case QMetaType::QCborValue: |
1116 | 0 | *static_cast<QJsonValue *>(result) = v_cast<QCborValue>(d)->toJsonValue(); |
1117 | 0 | break; |
1118 | 0 | case QMetaType::QCborMap: |
1119 | 0 | *static_cast<QJsonValue *>(result) = v_cast<QCborMap>(d)->toJsonObject(); |
1120 | 0 | break; |
1121 | 0 | case QMetaType::QCborArray: |
1122 | 0 | *static_cast<QJsonValue *>(result) = v_cast<QCborArray>(d)->toJsonArray(); |
1123 | 0 | break; |
1124 | 0 | default: |
1125 | 0 | *static_cast<QJsonValue *>(result) = QJsonValue(QJsonValue::Undefined); |
1126 | 0 | return false; |
1127 | 0 | } |
1128 | 0 | break; |
1129 | 0 | case QMetaType::QJsonArray: |
1130 | 0 | switch (d->type) { |
1131 | 0 | case QMetaType::QStringList: |
1132 | 0 | *static_cast<QJsonArray *>(result) = QJsonArray::fromStringList(*v_cast<QStringList>(d)); |
1133 | 0 | break; |
1134 | 0 | case QMetaType::QVariantList: |
1135 | 0 | *static_cast<QJsonArray *>(result) = QJsonArray::fromVariantList(*v_cast<QVariantList>(d)); |
1136 | 0 | break; |
1137 | 0 | case QMetaType::QJsonValue: |
1138 | 0 | if (!v_cast<QJsonValue>(d)->isArray()) |
1139 | 0 | return false; |
1140 | 0 | *static_cast<QJsonArray *>(result) = v_cast<QJsonValue>(d)->toArray(); |
1141 | 0 | break; |
1142 | 0 | case QMetaType::QJsonDocument: |
1143 | 0 | if (!v_cast<QJsonDocument>(d)->isArray()) |
1144 | 0 | return false; |
1145 | 0 | *static_cast<QJsonArray *>(result) = v_cast<QJsonDocument>(d)->array(); |
1146 | 0 | break; |
1147 | 0 | case QMetaType::QCborValue: |
1148 | 0 | if (!v_cast<QCborValue>(d)->isArray()) |
1149 | 0 | return false; |
1150 | 0 | *static_cast<QJsonArray *>(result) = v_cast<QCborValue>(d)->toArray().toJsonArray(); |
1151 | 0 | break; |
1152 | 0 | case QMetaType::QCborArray: |
1153 | 0 | *static_cast<QJsonArray *>(result) = v_cast<QCborArray>(d)->toJsonArray(); |
1154 | 0 | break; |
1155 | 0 | default: |
1156 | 0 | return false; |
1157 | 0 | } |
1158 | 0 | break; |
1159 | 0 | case QMetaType::QJsonObject: |
1160 | 0 | switch (d->type) { |
1161 | 0 | case QMetaType::QVariantMap: |
1162 | 0 | *static_cast<QJsonObject *>(result) = QJsonObject::fromVariantMap(*v_cast<QVariantMap>(d)); |
1163 | 0 | break; |
1164 | 0 | case QMetaType::QVariantHash: |
1165 | 0 | *static_cast<QJsonObject *>(result) = QJsonObject::fromVariantHash(*v_cast<QVariantHash>(d)); |
1166 | 0 | break; |
1167 | 0 | case QMetaType::QJsonValue: |
1168 | 0 | if (!v_cast<QJsonValue>(d)->isObject()) |
1169 | 0 | return false; |
1170 | 0 | *static_cast<QJsonObject *>(result) = v_cast<QJsonValue>(d)->toObject(); |
1171 | 0 | break; |
1172 | 0 | case QMetaType::QJsonDocument: |
1173 | 0 | if (v_cast<QJsonDocument>(d)->isArray()) |
1174 | 0 | return false; |
1175 | 0 | *static_cast<QJsonObject *>(result) = v_cast<QJsonDocument>(d)->object(); |
1176 | 0 | break; |
1177 | 0 | case QMetaType::QCborValue: |
1178 | 0 | if (!v_cast<QCborValue>(d)->isMap()) |
1179 | 0 | return false; |
1180 | 0 | *static_cast<QJsonObject *>(result) = v_cast<QCborValue>(d)->toMap().toJsonObject(); |
1181 | 0 | break; |
1182 | 0 | case QMetaType::QCborMap: |
1183 | 0 | *static_cast<QJsonObject *>(result) = v_cast<QCborMap>(d)->toJsonObject(); |
1184 | 0 | break; |
1185 | 0 | default: |
1186 | 0 | return false; |
1187 | 0 | } |
1188 | 0 | break; |
1189 | 0 | case QMetaType::QCborSimpleType: |
1190 | 0 | if (d->type == QMetaType::QCborValue && v_cast<QCborValue>(d)->isSimpleType()) { |
1191 | 0 | *static_cast<QCborSimpleType *>(result) = v_cast<QCborValue>(d)->toSimpleType(); |
1192 | 0 | break; |
1193 | 0 | } |
1194 | 0 | return false; |
1195 | 0 | case QMetaType::QCborValue: |
1196 | 0 | switch (d->type) { |
1197 | 0 | case QMetaType::Nullptr: |
1198 | 0 | *static_cast<QCborValue *>(result) = QCborValue(QCborValue::Null); |
1199 | 0 | break; |
1200 | 0 | case QMetaType::Bool: |
1201 | 0 | *static_cast<QCborValue *>(result) = QCborValue(d->data.b); |
1202 | 0 | break; |
1203 | 0 | case QMetaType::Int: |
1204 | 0 | case QMetaType::UInt: |
1205 | 0 | case QMetaType::ULong: |
1206 | 0 | case QMetaType::Long: |
1207 | 0 | case QMetaType::LongLong: |
1208 | 0 | case QMetaType::ULongLong: |
1209 | 0 | case QMetaType::UShort: |
1210 | 0 | case QMetaType::UChar: |
1211 | 0 | case QMetaType::Char: |
1212 | 0 | case QMetaType::SChar: |
1213 | 0 | case QMetaType::Short: |
1214 | 0 | *static_cast<QCborValue *>(result) = QCborValue(qConvertToNumber(d, ok)); |
1215 | 0 | Q_ASSERT(ok); |
1216 | 0 | break; |
1217 | 0 | case QMetaType::Double: |
1218 | 0 | case QMetaType::Float: |
1219 | 0 | *static_cast<QCborValue *>(result) = QCborValue(qConvertToRealNumber(d, ok)); |
1220 | 0 | Q_ASSERT(ok); |
1221 | 0 | break; |
1222 | 0 | case QMetaType::QString: |
1223 | 0 | *static_cast<QCborValue *>(result) = *v_cast<QString>(d); |
1224 | 0 | break; |
1225 | 0 | case QMetaType::QStringList: |
1226 | 0 | *static_cast<QCborValue *>(result) = QCborArray::fromStringList(*v_cast<QStringList>(d)); |
1227 | 0 | break; |
1228 | 0 | case QMetaType::QByteArray: |
1229 | 0 | *static_cast<QCborValue *>(result) = *v_cast<QByteArray>(d); |
1230 | 0 | break; |
1231 | 0 | case QMetaType::QDate: |
1232 | 0 | *static_cast<QCborValue *>(result) = QCborValue(v_cast<QDate>(d)->startOfDay()); |
1233 | 0 | break; |
1234 | 0 | case QMetaType::QDateTime: |
1235 | 0 | *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QDateTime>(d)); |
1236 | 0 | break; |
1237 | 0 | case QMetaType::QUrl: |
1238 | 0 | *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QUrl>(d)); |
1239 | 0 | break; |
1240 | 0 | #if QT_CONFIG(regularexpression) |
1241 | 0 | case QMetaType::QRegularExpression: |
1242 | 0 | *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QRegularExpression>(d)); |
1243 | 0 | break; |
1244 | 0 | #endif |
1245 | 0 | case QMetaType::QUuid: |
1246 | 0 | *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QUuid>(d)); |
1247 | 0 | break; |
1248 | 0 | case QMetaType::QVariantList: |
1249 | 0 | *static_cast<QCborValue *>(result) = QCborArray::fromVariantList(*v_cast<QVariantList>(d)); |
1250 | 0 | break; |
1251 | 0 | case QMetaType::QVariantMap: |
1252 | 0 | *static_cast<QCborValue *>(result) = QCborMap::fromVariantMap(*v_cast<QVariantMap>(d)); |
1253 | 0 | break; |
1254 | 0 | case QMetaType::QVariantHash: |
1255 | 0 | *static_cast<QCborValue *>(result) = QCborMap::fromVariantHash(*v_cast<QVariantHash>(d)); |
1256 | 0 | break; |
1257 | 0 | case QMetaType::QJsonValue: |
1258 | 0 | *static_cast<QCborValue *>(result) = QCborValue::fromJsonValue(*v_cast<QJsonValue>(d)); |
1259 | 0 | break; |
1260 | 0 | case QMetaType::QJsonObject: |
1261 | 0 | *static_cast<QCborValue *>(result) = QCborMap::fromJsonObject(*v_cast<QJsonObject>(d)); |
1262 | 0 | break; |
1263 | 0 | case QMetaType::QJsonArray: |
1264 | 0 | *static_cast<QCborValue *>(result) = QCborArray::fromJsonArray(*v_cast<QJsonArray>(d)); |
1265 | 0 | break; |
1266 | 0 | case QMetaType::QJsonDocument: { |
1267 | 0 | QJsonDocument doc = *v_cast<QJsonDocument>(d); |
1268 | 0 | if (doc.isArray()) |
1269 | 0 | *static_cast<QCborValue *>(result) = QCborArray::fromJsonArray(doc.array()); |
1270 | 0 | else |
1271 | 0 | *static_cast<QCborValue *>(result) = QCborMap::fromJsonObject(doc.object()); |
1272 | 0 | break; |
1273 | 0 | } |
1274 | 0 | case QMetaType::QCborSimpleType: |
1275 | 0 | *static_cast<QCborValue *>(result) = *v_cast<QCborSimpleType>(d); |
1276 | 0 | break; |
1277 | 0 | case QMetaType::QCborMap: |
1278 | 0 | *static_cast<QCborValue *>(result) = *v_cast<QCborMap>(d); |
1279 | 0 | break; |
1280 | 0 | case QMetaType::QCborArray: |
1281 | 0 | *static_cast<QCborValue *>(result) = *v_cast<QCborArray>(d); |
1282 | 0 | break; |
1283 | 0 | default: |
1284 | 0 | *static_cast<QCborValue *>(result) = {}; |
1285 | 0 | return false; |
1286 | 0 | } |
1287 | 0 | break; |
1288 | 0 | case QMetaType::QCborArray: |
1289 | 0 | switch (d->type) { |
1290 | 0 | case QMetaType::QStringList: |
1291 | 0 | *static_cast<QCborArray *>(result) = QCborArray::fromStringList(*v_cast<QStringList>(d)); |
1292 | 0 | break; |
1293 | 0 | case QMetaType::QVariantList: |
1294 | 0 | *static_cast<QCborArray *>(result) = QCborArray::fromVariantList(*v_cast<QVariantList>(d)); |
1295 | 0 | break; |
1296 | 0 | case QMetaType::QCborValue: |
1297 | 0 | if (!v_cast<QCborValue>(d)->isArray()) |
1298 | 0 | return false; |
1299 | 0 | *static_cast<QCborArray *>(result) = v_cast<QCborValue>(d)->toArray(); |
1300 | 0 | break; |
1301 | 0 | case QMetaType::QJsonDocument: |
1302 | 0 | if (!v_cast<QJsonDocument>(d)->isArray()) |
1303 | 0 | return false; |
1304 | 0 | *static_cast<QCborArray *>(result) = QCborArray::fromJsonArray(v_cast<QJsonDocument>(d)->array()); |
1305 | 0 | break; |
1306 | 0 | case QMetaType::QJsonValue: |
1307 | 0 | if (!v_cast<QJsonValue>(d)->isArray()) |
1308 | 0 | return false; |
1309 | 0 | *static_cast<QCborArray *>(result) = QCborArray::fromJsonArray(v_cast<QJsonValue>(d)->toArray()); |
1310 | 0 | break; |
1311 | 0 | case QMetaType::QJsonArray: |
1312 | 0 | *static_cast<QCborArray *>(result) = QCborArray::fromJsonArray(*v_cast<QJsonArray>(d)); |
1313 | 0 | break; |
1314 | 0 | default: |
1315 | 0 | return false; |
1316 | 0 | } |
1317 | 0 | break; |
1318 | 0 | case QMetaType::QCborMap: |
1319 | 0 | switch (d->type) { |
1320 | 0 | case QMetaType::QVariantMap: |
1321 | 0 | *static_cast<QCborMap *>(result) = QCborMap::fromVariantMap(*v_cast<QVariantMap>(d)); |
1322 | 0 | break; |
1323 | 0 | case QMetaType::QVariantHash: |
1324 | 0 | *static_cast<QCborMap *>(result) = QCborMap::fromVariantHash(*v_cast<QVariantHash>(d)); |
1325 | 0 | break; |
1326 | 0 | case QMetaType::QCborValue: |
1327 | 0 | if (!v_cast<QCborValue>(d)->isMap()) |
1328 | 0 | return false; |
1329 | 0 | *static_cast<QCborMap *>(result) = v_cast<QCborValue>(d)->toMap(); |
1330 | 0 | break; |
1331 | 0 | case QMetaType::QJsonDocument: |
1332 | 0 | if (v_cast<QJsonDocument>(d)->isArray()) |
1333 | 0 | return false; |
1334 | 0 | *static_cast<QCborMap *>(result) = QCborMap::fromJsonObject(v_cast<QJsonDocument>(d)->object()); |
1335 | 0 | break; |
1336 | 0 | case QMetaType::QJsonValue: |
1337 | 0 | if (!v_cast<QJsonValue>(d)->isObject()) |
1338 | 0 | return false; |
1339 | 0 | *static_cast<QCborMap *>(result) = QCborMap::fromJsonObject(v_cast<QJsonValue>(d)->toObject()); |
1340 | 0 | break; |
1341 | 0 | case QMetaType::QJsonObject: |
1342 | 0 | *static_cast<QCborMap *>(result) = QCborMap::fromJsonObject(*v_cast<QJsonObject>(d)); |
1343 | 0 | break; |
1344 | 0 | default: |
1345 | 0 | return false; |
1346 | 0 | } |
1347 | 0 | break; |
1348 | 0 | #endif |
1349 | | |
1350 | 0 | default: |
1351 | 0 | #ifndef QT_NO_QOBJECT |
1352 | 0 | if (d->type == QMetaType::QString || d->type == QMetaType::QByteArray) { |
1353 | 0 | QMetaEnum en = metaEnumFromType(t); |
1354 | 0 | if (en.isValid()) { |
1355 | 0 | QByteArray keys = (d->type == QMetaType::QString) ? v_cast<QString>(d)->toUtf8() : *v_cast<QByteArray>(d); |
1356 | 0 | int value = en.keysToValue(keys.constData(), ok); |
1357 | 0 | if (*ok) { |
1358 | 0 | switch (QMetaType::sizeOf(t)) { |
1359 | 0 | case 1: |
1360 | 0 | *static_cast<signed char *>(result) = value; |
1361 | 0 | return true; |
1362 | 0 | case 2: |
1363 | 0 | *static_cast<qint16 *>(result) = value; |
1364 | 0 | return true; |
1365 | 0 | case 4: |
1366 | 0 | *static_cast<qint32 *>(result) = value; |
1367 | 0 | return true; |
1368 | 0 | case 8: |
1369 | 0 | *static_cast<qint64 *>(result) = value; |
1370 | 0 | return true; |
1371 | 0 | } |
1372 | 0 | } |
1373 | 0 | } |
1374 | 0 | } |
1375 | 0 | #endif |
1376 | 0 | if (QMetaType::typeFlags(t) & QMetaType::IsEnumeration || d->type == QMetaType::QCborSimpleType) { |
1377 | 0 | qlonglong value = qConvertToNumber(d, ok); |
1378 | 0 | if (*ok) { |
1379 | 0 | switch (QMetaType::sizeOf(t)) { |
1380 | 0 | case 1: |
1381 | 0 | *static_cast<signed char *>(result) = value; |
1382 | 0 | return true; |
1383 | 0 | case 2: |
1384 | 0 | *static_cast<qint16 *>(result) = value; |
1385 | 0 | return true; |
1386 | 0 | case 4: |
1387 | 0 | *static_cast<qint32 *>(result) = value; |
1388 | 0 | return true; |
1389 | 0 | case 8: |
1390 | 0 | *static_cast<qint64 *>(result) = value; |
1391 | 0 | return true; |
1392 | 0 | } |
1393 | 0 | } |
1394 | 0 | return *ok; |
1395 | 0 | } |
1396 | 0 | return false; |
1397 | 10 | } |
1398 | 10 | return true; |
1399 | 10 | } |
1400 | | |
1401 | | #if !defined(QT_NO_DEBUG_STREAM) |
1402 | | static void streamDebug(QDebug dbg, const QVariant &v) |
1403 | 0 | { |
1404 | 0 | QVariant::Private *d = const_cast<QVariant::Private *>(&v.data_ptr()); |
1405 | 0 | QVariantDebugStream<CoreTypesFilter> stream(dbg, d); |
1406 | 0 | QMetaTypeSwitcher::switcher<void>(stream, d->type); |
1407 | 0 | } |
1408 | | #endif |
1409 | | |
1410 | | const QVariant::Handler qt_kernel_variant_handler = { |
1411 | | construct, |
1412 | | clear, |
1413 | | isNull, |
1414 | | #ifndef QT_NO_DATASTREAM |
1415 | | nullptr, |
1416 | | nullptr, |
1417 | | #endif |
1418 | | compare, |
1419 | | convert, |
1420 | | nullptr, |
1421 | | #if !defined(QT_NO_DEBUG_STREAM) |
1422 | | streamDebug |
1423 | | #else |
1424 | | nullptr |
1425 | | #endif |
1426 | | }; |
1427 | | |
1428 | 0 | static void dummyConstruct(QVariant::Private *, const void *) { Q_ASSERT_X(false, "QVariant", "Trying to construct an unknown type"); } |
1429 | 0 | static void dummyClear(QVariant::Private *) { Q_ASSERT_X(false, "QVariant", "Trying to clear an unknown type"); } |
1430 | 0 | static bool dummyIsNull(const QVariant::Private *d) { Q_ASSERT_X(false, "QVariant::isNull", "Trying to call isNull on an unknown type"); return d->is_null; } |
1431 | 0 | static bool dummyCompare(const QVariant::Private *, const QVariant::Private *) { Q_ASSERT_X(false, "QVariant", "Trying to compare an unknown types"); return false; } |
1432 | 0 | static bool dummyConvert(const QVariant::Private *, int, void *, bool *) { Q_ASSERT_X(false, "QVariant", "Trying to convert an unknown type"); return false; } |
1433 | | #if !defined(QT_NO_DEBUG_STREAM) |
1434 | 0 | static void dummyStreamDebug(QDebug, const QVariant &) { Q_ASSERT_X(false, "QVariant", "Trying to convert an unknown type"); } |
1435 | | #endif |
1436 | | const QVariant::Handler qt_dummy_variant_handler = { |
1437 | | dummyConstruct, |
1438 | | dummyClear, |
1439 | | dummyIsNull, |
1440 | | #ifndef QT_NO_DATASTREAM |
1441 | | nullptr, |
1442 | | nullptr, |
1443 | | #endif |
1444 | | dummyCompare, |
1445 | | dummyConvert, |
1446 | | nullptr, |
1447 | | #if !defined(QT_NO_DEBUG_STREAM) |
1448 | | dummyStreamDebug |
1449 | | #else |
1450 | | nullptr |
1451 | | #endif |
1452 | | }; |
1453 | | |
1454 | | static void customConstruct(QVariant::Private *d, const void *copy) |
1455 | 0 | { |
1456 | 0 | const QMetaType type(d->type); |
1457 | 0 | const uint size = type.sizeOf(); |
1458 | 0 | if (!size) { |
1459 | 0 | qWarning("Trying to construct an instance of an invalid type, type id: %i", d->type); |
1460 | 0 | d->type = QMetaType::UnknownType; |
1461 | 0 | return; |
1462 | 0 | } |
1463 | | |
1464 | | // this logic should match with QVariantIntegrator::CanUseInternalSpace |
1465 | 0 | if (size <= sizeof(QVariant::Private::Data) |
1466 | 0 | && (type.flags() & (QMetaType::MovableType | QMetaType::IsEnumeration))) { |
1467 | 0 | type.construct(&d->data.ptr, copy); |
1468 | 0 | d->is_null = d->data.ptr == nullptr; |
1469 | 0 | d->is_shared = false; |
1470 | 0 | } else { |
1471 | | // Private::Data contains long long, and long double is the biggest standard type. |
1472 | 0 | const size_t maxAlignment = |
1473 | 0 | qMax(Q_ALIGNOF(QVariant::Private::Data), Q_ALIGNOF(long double)); |
1474 | 0 | const size_t s = sizeof(QVariant::PrivateShared); |
1475 | 0 | const size_t offset = s + ((s * maxAlignment - s) % maxAlignment); |
1476 | 0 | void *data = operator new(offset + size); |
1477 | 0 | void *ptr = static_cast<char *>(data) + offset; |
1478 | 0 | type.construct(ptr, copy); |
1479 | 0 | d->is_null = ptr == nullptr; |
1480 | 0 | d->is_shared = true; |
1481 | 0 | d->data.shared = new (data) QVariant::PrivateShared(ptr); |
1482 | 0 | } |
1483 | 0 | } |
1484 | | |
1485 | | static void customClear(QVariant::Private *d) |
1486 | 0 | { |
1487 | 0 | if (!d->is_shared) { |
1488 | 0 | QMetaType::destruct(d->type, &d->data.ptr); |
1489 | 0 | } else { |
1490 | 0 | QMetaType::destruct(d->type, d->data.shared->ptr); |
1491 | 0 | d->data.shared->~PrivateShared(); |
1492 | 0 | operator delete(d->data.shared); |
1493 | 0 | } |
1494 | 0 | } |
1495 | | |
1496 | | static bool customIsNull(const QVariant::Private *d) |
1497 | 0 | { |
1498 | 0 | if (d->is_null) |
1499 | 0 | return true; |
1500 | 0 | const char *const typeName = QMetaType::typeName(d->type); |
1501 | 0 | if (Q_UNLIKELY(!typeName) && Q_LIKELY(!QMetaType::isRegistered(d->type))) |
1502 | 0 | qFatal("QVariant::isNull: type %d unknown to QVariant.", d->type); |
1503 | 0 | uint typeNameLen = qstrlen(typeName); |
1504 | 0 | if (typeNameLen > 0 && typeName[typeNameLen - 1] == '*') { |
1505 | 0 | const void *d_ptr = d->is_shared ? d->data.shared->ptr : &(d->data.ptr); |
1506 | 0 | return *static_cast<void *const *>(d_ptr) == nullptr; |
1507 | 0 | } |
1508 | 0 | return false; |
1509 | 0 | } |
1510 | | |
1511 | | static bool customCompare(const QVariant::Private *a, const QVariant::Private *b) |
1512 | 0 | { |
1513 | 0 | const char *const typeName = QMetaType::typeName(a->type); |
1514 | 0 | if (Q_UNLIKELY(!typeName) && Q_LIKELY(!QMetaType::isRegistered(a->type))) |
1515 | 0 | qFatal("QVariant::compare: type %d unknown to QVariant.", a->type); |
1516 | |
|
1517 | 0 | const void *a_ptr = a->is_shared ? a->data.shared->ptr : &(a->data.ptr); |
1518 | 0 | const void *b_ptr = b->is_shared ? b->data.shared->ptr : &(b->data.ptr); |
1519 | |
|
1520 | 0 | uint typeNameLen = qstrlen(typeName); |
1521 | 0 | if (typeNameLen > 0 && typeName[typeNameLen - 1] == '*') |
1522 | 0 | return *static_cast<void *const *>(a_ptr) == *static_cast<void *const *>(b_ptr); |
1523 | | |
1524 | 0 | if (a->is_null && b->is_null) |
1525 | 0 | return true; |
1526 | | |
1527 | 0 | return !memcmp(a_ptr, b_ptr, QMetaType::sizeOf(a->type)); |
1528 | 0 | } |
1529 | | |
1530 | | static bool customConvert(const QVariant::Private *d, int t, void *result, bool *ok) |
1531 | 0 | { |
1532 | 0 | if (d->type >= QMetaType::User || t >= QMetaType::User) { |
1533 | 0 | if (QMetaType::convert(constData(*d), d->type, result, t)) { |
1534 | 0 | if (ok) |
1535 | 0 | *ok = true; |
1536 | 0 | return true; |
1537 | 0 | } |
1538 | 0 | } |
1539 | 0 | return convert(d, t, result, ok); |
1540 | 0 | } |
1541 | | |
1542 | | #if !defined(QT_NO_DEBUG_STREAM) |
1543 | 0 | static void customStreamDebug(QDebug dbg, const QVariant &variant) { |
1544 | 0 | #ifndef QT_BOOTSTRAPPED |
1545 | 0 | QMetaType::TypeFlags flags = QMetaType::typeFlags(variant.userType()); |
1546 | 0 | if (flags & QMetaType::PointerToQObject) |
1547 | 0 | dbg.nospace() << qvariant_cast<QObject*>(variant); |
1548 | | #else |
1549 | | Q_UNUSED(dbg); |
1550 | | Q_UNUSED(variant); |
1551 | | #endif |
1552 | 0 | } |
1553 | | #endif |
1554 | | |
1555 | | const QVariant::Handler qt_custom_variant_handler = { |
1556 | | customConstruct, |
1557 | | customClear, |
1558 | | customIsNull, |
1559 | | #ifndef QT_NO_DATASTREAM |
1560 | | nullptr, |
1561 | | nullptr, |
1562 | | #endif |
1563 | | customCompare, |
1564 | | customConvert, |
1565 | | nullptr, |
1566 | | #if !defined(QT_NO_DEBUG_STREAM) |
1567 | | customStreamDebug |
1568 | | #else |
1569 | | nullptr |
1570 | | #endif |
1571 | | }; |
1572 | | |
1573 | | } // annonymous used to hide QVariant handlers |
1574 | | |
1575 | | static HandlersManager handlerManager; |
1576 | | Q_STATIC_ASSERT_X(!QModulesPrivate::Core, "Initialization assumes that ModulesNames::Core is 0"); |
1577 | | const QVariant::Handler *HandlersManager::Handlers[QModulesPrivate::ModulesCount] |
1578 | | = { &qt_kernel_variant_handler, &qt_dummy_variant_handler, |
1579 | | &qt_dummy_variant_handler, &qt_custom_variant_handler }; |
1580 | | |
1581 | | Q_CORE_EXPORT const QVariant::Handler *qcoreVariantHandler() |
1582 | 0 | { |
1583 | 0 | return &qt_kernel_variant_handler; |
1584 | 0 | } |
1585 | | |
1586 | | Q_CORE_EXPORT void QVariantPrivate::registerHandler(const int /* Modules::Names */name, const QVariant::Handler *handler) |
1587 | 0 | { |
1588 | 0 | handlerManager.registerHandler(static_cast<QModulesPrivate::Names>(name), handler); |
1589 | 0 | } |
1590 | | |
1591 | | /*! |
1592 | | \class QVariant |
1593 | | \inmodule QtCore |
1594 | | \brief The QVariant class acts like a union for the most common Qt data types. |
1595 | | |
1596 | | \ingroup objectmodel |
1597 | | \ingroup shared |
1598 | | |
1599 | | |
1600 | | Because C++ forbids unions from including types that have |
1601 | | non-default constructors or destructors, most interesting Qt |
1602 | | classes cannot be used in unions. Without QVariant, this would be |
1603 | | a problem for QObject::property() and for database work, etc. |
1604 | | |
1605 | | A QVariant object holds a single value of a single type() at a |
1606 | | time. (Some type()s are multi-valued, for example a string list.) |
1607 | | You can find out what type, T, the variant holds, convert it to a |
1608 | | different type using convert(), get its value using one of the |
1609 | | toT() functions (e.g., toSize()) and check whether the type can |
1610 | | be converted to a particular type using canConvert(). |
1611 | | |
1612 | | The methods named toT() (e.g., toInt(), toString()) are const. If |
1613 | | you ask for the stored type, they return a copy of the stored |
1614 | | object. If you ask for a type that can be generated from the |
1615 | | stored type, toT() copies and converts and leaves the object |
1616 | | itself unchanged. If you ask for a type that cannot be generated |
1617 | | from the stored type, the result depends on the type; see the |
1618 | | function documentation for details. |
1619 | | |
1620 | | Here is some example code to demonstrate the use of QVariant: |
1621 | | |
1622 | | \snippet code/src_corelib_kernel_qvariant.cpp 0 |
1623 | | |
1624 | | You can even store QList<QVariant> and QMap<QString, QVariant> |
1625 | | values in a variant, so you can easily construct arbitrarily |
1626 | | complex data structures of arbitrary types. This is very powerful |
1627 | | and versatile, but may prove less memory and speed efficient than |
1628 | | storing specific types in standard data structures. |
1629 | | |
1630 | | QVariant also supports the notion of null values, where you can |
1631 | | have a defined type with no value set. However, note that QVariant |
1632 | | types can only be cast when they have had a value set. |
1633 | | |
1634 | | \snippet code/src_corelib_kernel_qvariant.cpp 1 |
1635 | | |
1636 | | QVariant can be extended to support other types than those |
1637 | | mentioned in the \l Type enum. See \l{Creating Custom Qt Types}{Creating Custom Qt Types} |
1638 | | for details. |
1639 | | |
1640 | | \section1 A Note on GUI Types |
1641 | | |
1642 | | Because QVariant is part of the Qt Core module, it cannot provide |
1643 | | conversion functions to data types defined in Qt GUI, such as |
1644 | | QColor, QImage, and QPixmap. In other words, there is no \c |
1645 | | toColor() function. Instead, you can use the QVariant::value() or |
1646 | | the qvariant_cast() template function. For example: |
1647 | | |
1648 | | \snippet code/src_corelib_kernel_qvariant.cpp 2 |
1649 | | |
1650 | | The inverse conversion (e.g., from QColor to QVariant) is |
1651 | | automatic for all data types supported by QVariant, including |
1652 | | GUI-related types: |
1653 | | |
1654 | | \snippet code/src_corelib_kernel_qvariant.cpp 3 |
1655 | | |
1656 | | \section1 Using canConvert() and convert() Consecutively |
1657 | | |
1658 | | When using canConvert() and convert() consecutively, it is possible for |
1659 | | canConvert() to return true, but convert() to return false. This |
1660 | | is typically because canConvert() only reports the general ability of |
1661 | | QVariant to convert between types given suitable data; it is still |
1662 | | possible to supply data which cannot actually be converted. |
1663 | | |
1664 | | For example, canConvert(Int) would return true when called on a variant |
1665 | | containing a string because, in principle, QVariant is able to convert |
1666 | | strings of numbers to integers. |
1667 | | However, if the string contains non-numeric characters, it cannot be |
1668 | | converted to an integer, and any attempt to convert it will fail. |
1669 | | Hence, it is important to have both functions return true for a |
1670 | | successful conversion. |
1671 | | |
1672 | | \sa QMetaType |
1673 | | */ |
1674 | | |
1675 | | /*! |
1676 | | \obsolete Use QMetaType::Type instead |
1677 | | \enum QVariant::Type |
1678 | | |
1679 | | This enum type defines the types of variable that a QVariant can |
1680 | | contain. |
1681 | | |
1682 | | \value Invalid no type |
1683 | | \value BitArray a QBitArray |
1684 | | \value Bitmap a QBitmap |
1685 | | \value Bool a bool |
1686 | | \value Brush a QBrush |
1687 | | \value ByteArray a QByteArray |
1688 | | \value Char a QChar |
1689 | | \value Color a QColor |
1690 | | \value Cursor a QCursor |
1691 | | \value Date a QDate |
1692 | | \value DateTime a QDateTime |
1693 | | \value Double a double |
1694 | | \value EasingCurve a QEasingCurve |
1695 | | \value Uuid a QUuid |
1696 | | \value ModelIndex a QModelIndex |
1697 | | \value PersistentModelIndex a QPersistentModelIndex (since 5.5) |
1698 | | \value Font a QFont |
1699 | | \value Hash a QVariantHash |
1700 | | \value Icon a QIcon |
1701 | | \value Image a QImage |
1702 | | \value Int an int |
1703 | | \value KeySequence a QKeySequence |
1704 | | \value Line a QLine |
1705 | | \value LineF a QLineF |
1706 | | \value List a QVariantList |
1707 | | \value Locale a QLocale |
1708 | | \value LongLong a \l qlonglong |
1709 | | \value Map a QVariantMap |
1710 | | \value Matrix a QMatrix |
1711 | | \value Transform a QTransform |
1712 | | \value Matrix4x4 a QMatrix4x4 |
1713 | | \value Palette a QPalette |
1714 | | \value Pen a QPen |
1715 | | \value Pixmap a QPixmap |
1716 | | \value Point a QPoint |
1717 | | \value PointF a QPointF |
1718 | | \value Polygon a QPolygon |
1719 | | \value PolygonF a QPolygonF |
1720 | | \value Quaternion a QQuaternion |
1721 | | \value Rect a QRect |
1722 | | \value RectF a QRectF |
1723 | | \value RegExp a QRegExp |
1724 | | \value RegularExpression a QRegularExpression |
1725 | | \value Region a QRegion |
1726 | | \value Size a QSize |
1727 | | \value SizeF a QSizeF |
1728 | | \value SizePolicy a QSizePolicy |
1729 | | \value String a QString |
1730 | | \value StringList a QStringList |
1731 | | \value TextFormat a QTextFormat |
1732 | | \value TextLength a QTextLength |
1733 | | \value Time a QTime |
1734 | | \value UInt a \l uint |
1735 | | \value ULongLong a \l qulonglong |
1736 | | \value Url a QUrl |
1737 | | \value Vector2D a QVector2D |
1738 | | \value Vector3D a QVector3D |
1739 | | \value Vector4D a QVector4D |
1740 | | |
1741 | | \value UserType Base value for user-defined types. |
1742 | | |
1743 | | \omitvalue LastGuiType |
1744 | | \omitvalue LastCoreType |
1745 | | \omitvalue LastType |
1746 | | */ |
1747 | | |
1748 | | /*! |
1749 | | \fn QVariant::QVariant(QVariant &&other) |
1750 | | |
1751 | | Move-constructs a QVariant instance, making it point at the same |
1752 | | object that \a other was pointing to. |
1753 | | |
1754 | | \since 5.2 |
1755 | | */ |
1756 | | |
1757 | | /*! |
1758 | | \fn QVariant &QVariant::operator=(QVariant &&other) |
1759 | | |
1760 | | Move-assigns \a other to this QVariant instance. |
1761 | | |
1762 | | \since 5.2 |
1763 | | */ |
1764 | | |
1765 | | /*! |
1766 | | \fn QVariant::QVariant() |
1767 | | |
1768 | | Constructs an invalid variant. |
1769 | | */ |
1770 | | |
1771 | | |
1772 | | /*! |
1773 | | \fn QVariant::QVariant(int typeId, const void *copy) |
1774 | | |
1775 | | Constructs variant of type \a typeId, and initializes with |
1776 | | \a copy if \a copy is not \nullptr. |
1777 | | |
1778 | | Note that you have to pass the address of the variable you want stored. |
1779 | | |
1780 | | Usually, you never have to use this constructor, use QVariant::fromValue() |
1781 | | instead to construct variants from the pointer types represented by |
1782 | | \c QMetaType::VoidStar, and \c QMetaType::QObjectStar. |
1783 | | |
1784 | | \sa QVariant::fromValue(), QMetaType::Type |
1785 | | */ |
1786 | | |
1787 | | /*! |
1788 | | \fn QVariant::QVariant(Type type) |
1789 | | |
1790 | | Constructs an uninitialized variant of type \a type. This will create a |
1791 | | variant in a special null state that if accessed will return a default |
1792 | | constructed value of the \a type. |
1793 | | |
1794 | | \sa isNull() |
1795 | | */ |
1796 | | |
1797 | | |
1798 | | |
1799 | | /*! |
1800 | | \fn QVariant::create(int type, const void *copy) |
1801 | | |
1802 | | \internal |
1803 | | |
1804 | | Constructs a variant private of type \a type, and initializes with \a copy if |
1805 | | \a copy is not \nullptr. |
1806 | | */ |
1807 | | |
1808 | | void QVariant::create(int type, const void *copy) |
1809 | 0 | { |
1810 | 0 | d.type = type; |
1811 | 0 | handlerManager[type]->construct(&d, copy); |
1812 | 0 | } |
1813 | | |
1814 | | /*! |
1815 | | \fn QVariant::~QVariant() |
1816 | | |
1817 | | Destroys the QVariant and the contained object. |
1818 | | |
1819 | | Note that subclasses that reimplement clear() should reimplement |
1820 | | the destructor to call clear(). This destructor calls clear(), but |
1821 | | because it is the destructor, QVariant::clear() is called rather |
1822 | | than a subclass's clear(). |
1823 | | */ |
1824 | | |
1825 | | QVariant::~QVariant() |
1826 | 18 | { |
1827 | 18 | if ((d.is_shared && !d.data.shared->ref.deref()) || (!d.is_shared && d.type > Char)) |
1828 | 0 | handlerManager[d.type]->clear(&d); |
1829 | 18 | } |
1830 | | |
1831 | | /*! |
1832 | | \fn QVariant::QVariant(const QVariant &p) |
1833 | | |
1834 | | Constructs a copy of the variant, \a p, passed as the argument to |
1835 | | this constructor. |
1836 | | */ |
1837 | | |
1838 | | QVariant::QVariant(const QVariant &p) |
1839 | | : d(p.d) |
1840 | 0 | { |
1841 | 0 | if (d.is_shared) { |
1842 | 0 | d.data.shared->ref.ref(); |
1843 | 0 | } else if (p.d.type > Char) { |
1844 | 0 | handlerManager[d.type]->construct(&d, p.constData()); |
1845 | 0 | d.is_null = p.d.is_null; |
1846 | 0 | } |
1847 | 0 | } |
1848 | | |
1849 | | #ifndef QT_NO_DATASTREAM |
1850 | | /*! |
1851 | | Reads the variant from the data stream, \a s. |
1852 | | */ |
1853 | | QVariant::QVariant(QDataStream &s) |
1854 | 0 | { |
1855 | 0 | d.is_null = true; |
1856 | 0 | s >> *this; |
1857 | 0 | } |
1858 | | #endif //QT_NO_DATASTREAM |
1859 | | |
1860 | | /*! |
1861 | | \fn QVariant::QVariant(const QString &val) |
1862 | | |
1863 | | Constructs a new variant with a string value, \a val. |
1864 | | */ |
1865 | | |
1866 | | /*! |
1867 | | \fn QVariant::QVariant(QLatin1String val) |
1868 | | |
1869 | | Constructs a new variant with a string value, \a val. |
1870 | | */ |
1871 | | |
1872 | | /*! |
1873 | | \fn QVariant::QVariant(const char *val) |
1874 | | |
1875 | | Constructs a new variant with a string value of \a val. |
1876 | | The variant creates a deep copy of \a val into a QString assuming |
1877 | | UTF-8 encoding on the input \a val. |
1878 | | |
1879 | | Note that \a val is converted to a QString for storing in the |
1880 | | variant and QVariant::userType() will return QMetaType::QString for |
1881 | | the variant. |
1882 | | |
1883 | | You can disable this operator by defining \c |
1884 | | QT_NO_CAST_FROM_ASCII when you compile your applications. |
1885 | | */ |
1886 | | |
1887 | | #ifndef QT_NO_CAST_FROM_ASCII |
1888 | | QVariant::QVariant(const char *val) |
1889 | 0 | { |
1890 | 0 | QString s = QString::fromUtf8(val); |
1891 | 0 | create(String, &s); |
1892 | 0 | } |
1893 | | #endif |
1894 | | |
1895 | | /*! |
1896 | | \fn QVariant::QVariant(const QStringList &val) |
1897 | | |
1898 | | Constructs a new variant with a string list value, \a val. |
1899 | | */ |
1900 | | |
1901 | | /*! |
1902 | | \fn QVariant::QVariant(const QMap<QString, QVariant> &val) |
1903 | | |
1904 | | Constructs a new variant with a map of \l {QVariant}s, \a val. |
1905 | | */ |
1906 | | |
1907 | | /*! |
1908 | | \fn QVariant::QVariant(const QHash<QString, QVariant> &val) |
1909 | | |
1910 | | Constructs a new variant with a hash of \l {QVariant}s, \a val. |
1911 | | */ |
1912 | | |
1913 | | /*! |
1914 | | \fn QVariant::QVariant(const QDate &val) |
1915 | | |
1916 | | Constructs a new variant with a date value, \a val. |
1917 | | */ |
1918 | | |
1919 | | /*! |
1920 | | \fn QVariant::QVariant(const QTime &val) |
1921 | | |
1922 | | Constructs a new variant with a time value, \a val. |
1923 | | */ |
1924 | | |
1925 | | /*! |
1926 | | \fn QVariant::QVariant(const QDateTime &val) |
1927 | | |
1928 | | Constructs a new variant with a date/time value, \a val. |
1929 | | */ |
1930 | | |
1931 | | /*! |
1932 | | \since 4.7 |
1933 | | \fn QVariant::QVariant(const QEasingCurve &val) |
1934 | | |
1935 | | Constructs a new variant with an easing curve value, \a val. |
1936 | | */ |
1937 | | |
1938 | | /*! |
1939 | | \since 5.0 |
1940 | | \fn QVariant::QVariant(const QUuid &val) |
1941 | | |
1942 | | Constructs a new variant with an uuid value, \a val. |
1943 | | */ |
1944 | | |
1945 | | /*! |
1946 | | \since 5.0 |
1947 | | \fn QVariant::QVariant(const QModelIndex &val) |
1948 | | |
1949 | | Constructs a new variant with a QModelIndex value, \a val. |
1950 | | */ |
1951 | | |
1952 | | /*! |
1953 | | \since 5.5 |
1954 | | \fn QVariant::QVariant(const QPersistentModelIndex &val) |
1955 | | |
1956 | | Constructs a new variant with a QPersistentModelIndex value, \a val. |
1957 | | */ |
1958 | | |
1959 | | /*! |
1960 | | \since 5.0 |
1961 | | \fn QVariant::QVariant(const QJsonValue &val) |
1962 | | |
1963 | | Constructs a new variant with a json value, \a val. |
1964 | | */ |
1965 | | |
1966 | | /*! |
1967 | | \since 5.0 |
1968 | | \fn QVariant::QVariant(const QJsonObject &val) |
1969 | | |
1970 | | Constructs a new variant with a json object value, \a val. |
1971 | | */ |
1972 | | |
1973 | | /*! |
1974 | | \since 5.0 |
1975 | | \fn QVariant::QVariant(const QJsonArray &val) |
1976 | | |
1977 | | Constructs a new variant with a json array value, \a val. |
1978 | | */ |
1979 | | |
1980 | | /*! |
1981 | | \since 5.0 |
1982 | | \fn QVariant::QVariant(const QJsonDocument &val) |
1983 | | |
1984 | | Constructs a new variant with a json document value, \a val. |
1985 | | */ |
1986 | | |
1987 | | /*! |
1988 | | \fn QVariant::QVariant(const QByteArray &val) |
1989 | | |
1990 | | Constructs a new variant with a bytearray value, \a val. |
1991 | | */ |
1992 | | |
1993 | | /*! |
1994 | | \fn QVariant::QVariant(const QBitArray &val) |
1995 | | |
1996 | | Constructs a new variant with a bitarray value, \a val. |
1997 | | */ |
1998 | | |
1999 | | /*! |
2000 | | \fn QVariant::QVariant(const QPoint &val) |
2001 | | |
2002 | | Constructs a new variant with a point value of \a val. |
2003 | | */ |
2004 | | |
2005 | | /*! |
2006 | | \fn QVariant::QVariant(const QPointF &val) |
2007 | | |
2008 | | Constructs a new variant with a point value of \a val. |
2009 | | */ |
2010 | | |
2011 | | /*! |
2012 | | \fn QVariant::QVariant(const QRectF &val) |
2013 | | |
2014 | | Constructs a new variant with a rect value of \a val. |
2015 | | */ |
2016 | | |
2017 | | /*! |
2018 | | \fn QVariant::QVariant(const QLineF &val) |
2019 | | |
2020 | | Constructs a new variant with a line value of \a val. |
2021 | | */ |
2022 | | |
2023 | | /*! |
2024 | | \fn QVariant::QVariant(const QLine &val) |
2025 | | |
2026 | | Constructs a new variant with a line value of \a val. |
2027 | | */ |
2028 | | |
2029 | | /*! |
2030 | | \fn QVariant::QVariant(const QRect &val) |
2031 | | |
2032 | | Constructs a new variant with a rect value of \a val. |
2033 | | */ |
2034 | | |
2035 | | /*! |
2036 | | \fn QVariant::QVariant(const QSize &val) |
2037 | | |
2038 | | Constructs a new variant with a size value of \a val. |
2039 | | */ |
2040 | | |
2041 | | /*! |
2042 | | \fn QVariant::QVariant(const QSizeF &val) |
2043 | | |
2044 | | Constructs a new variant with a size value of \a val. |
2045 | | */ |
2046 | | |
2047 | | /*! |
2048 | | \fn QVariant::QVariant(const QUrl &val) |
2049 | | |
2050 | | Constructs a new variant with a url value of \a val. |
2051 | | */ |
2052 | | |
2053 | | /*! |
2054 | | \fn QVariant::QVariant(int val) |
2055 | | |
2056 | | Constructs a new variant with an integer value, \a val. |
2057 | | */ |
2058 | | |
2059 | | /*! |
2060 | | \fn QVariant::QVariant(uint val) |
2061 | | |
2062 | | Constructs a new variant with an unsigned integer value, \a val. |
2063 | | */ |
2064 | | |
2065 | | /*! |
2066 | | \fn QVariant::QVariant(qlonglong val) |
2067 | | |
2068 | | Constructs a new variant with a long long integer value, \a val. |
2069 | | */ |
2070 | | |
2071 | | /*! |
2072 | | \fn QVariant::QVariant(qulonglong val) |
2073 | | |
2074 | | Constructs a new variant with an unsigned long long integer value, \a val. |
2075 | | */ |
2076 | | |
2077 | | |
2078 | | /*! |
2079 | | \fn QVariant::QVariant(bool val) |
2080 | | |
2081 | | Constructs a new variant with a boolean value, \a val. |
2082 | | */ |
2083 | | |
2084 | | /*! |
2085 | | \fn QVariant::QVariant(double val) |
2086 | | |
2087 | | Constructs a new variant with a floating point value, \a val. |
2088 | | */ |
2089 | | |
2090 | | /*! |
2091 | | \fn QVariant::QVariant(float val) |
2092 | | |
2093 | | Constructs a new variant with a floating point value, \a val. |
2094 | | \since 4.6 |
2095 | | */ |
2096 | | |
2097 | | /*! |
2098 | | \fn QVariant::QVariant(const QList<QVariant> &val) |
2099 | | |
2100 | | Constructs a new variant with a list value, \a val. |
2101 | | */ |
2102 | | |
2103 | | /*! |
2104 | | \fn QVariant::QVariant(QChar c) |
2105 | | |
2106 | | Constructs a new variant with a char value, \a c. |
2107 | | */ |
2108 | | |
2109 | | /*! |
2110 | | \fn QVariant::QVariant(const QLocale &l) |
2111 | | |
2112 | | Constructs a new variant with a locale value, \a l. |
2113 | | */ |
2114 | | |
2115 | | /*! |
2116 | | \fn QVariant::QVariant(const QRegExp ®Exp) |
2117 | | |
2118 | | Constructs a new variant with the regexp value \a regExp. |
2119 | | */ |
2120 | | |
2121 | | /*! |
2122 | | \fn QVariant::QVariant(const QRegularExpression &re) |
2123 | | |
2124 | | \since 5.0 |
2125 | | |
2126 | | Constructs a new variant with the regular expression value \a re. |
2127 | | */ |
2128 | | |
2129 | | QVariant::QVariant(Type type) |
2130 | 0 | { create(type, nullptr); } |
2131 | | QVariant::QVariant(int typeId, const void *copy) |
2132 | 0 | { create(typeId, copy); d.is_null = false; } |
2133 | | |
2134 | | /*! |
2135 | | \internal |
2136 | | flags is true if it is a pointer type |
2137 | | */ |
2138 | | QVariant::QVariant(int typeId, const void *copy, uint flags) |
2139 | 0 | { |
2140 | 0 | if (flags) { //type is a pointer type |
2141 | 0 | d.type = typeId; |
2142 | 0 | d.data.ptr = *reinterpret_cast<void *const*>(copy); |
2143 | 0 | } else { |
2144 | 0 | create(typeId, copy); |
2145 | 0 | } |
2146 | 0 | d.is_null = false; |
2147 | 0 | } |
2148 | | |
2149 | | QVariant::QVariant(int val) |
2150 | | : d(Int) |
2151 | 0 | { d.data.i = val; } |
2152 | | QVariant::QVariant(uint val) |
2153 | | : d(UInt) |
2154 | 0 | { d.data.u = val; } |
2155 | | QVariant::QVariant(qlonglong val) |
2156 | | : d(LongLong) |
2157 | 0 | { d.data.ll = val; } |
2158 | | QVariant::QVariant(qulonglong val) |
2159 | | : d(ULongLong) |
2160 | 0 | { d.data.ull = val; } |
2161 | | QVariant::QVariant(bool val) |
2162 | | : d(Bool) |
2163 | 0 | { d.data.b = val; } |
2164 | | QVariant::QVariant(double val) |
2165 | | : d(Double) |
2166 | 0 | { d.data.d = val; } |
2167 | | QVariant::QVariant(float val) |
2168 | | : d(QMetaType::Float) |
2169 | 0 | { d.data.f = val; } |
2170 | | |
2171 | | QVariant::QVariant(const QByteArray &val) |
2172 | | : d(ByteArray) |
2173 | 0 | { v_construct<QByteArray>(&d, val); } |
2174 | | QVariant::QVariant(const QBitArray &val) |
2175 | | : d(BitArray) |
2176 | 0 | { v_construct<QBitArray>(&d, val); } |
2177 | | QVariant::QVariant(const QString &val) |
2178 | | : d(String) |
2179 | 0 | { v_construct<QString>(&d, val); } |
2180 | | QVariant::QVariant(QChar val) |
2181 | | : d(Char) |
2182 | 5 | { v_construct<QChar>(&d, val); } |
2183 | | QVariant::QVariant(QLatin1String val) |
2184 | | : d(String) |
2185 | 0 | { v_construct<QString>(&d, val); } |
2186 | | QVariant::QVariant(const QStringList &val) |
2187 | | : d(StringList) |
2188 | 0 | { v_construct<QStringList>(&d, val); } |
2189 | | |
2190 | | QVariant::QVariant(const QDate &val) |
2191 | | : d(Date) |
2192 | 0 | { v_construct<QDate>(&d, val); } |
2193 | | QVariant::QVariant(const QTime &val) |
2194 | | : d(Time) |
2195 | 0 | { v_construct<QTime>(&d, val); } |
2196 | | QVariant::QVariant(const QDateTime &val) |
2197 | | : d(DateTime) |
2198 | 0 | { v_construct<QDateTime>(&d, val); } |
2199 | | #if QT_CONFIG(easingcurve) |
2200 | | QVariant::QVariant(const QEasingCurve &val) |
2201 | | : d(EasingCurve) |
2202 | 0 | { v_construct<QEasingCurve>(&d, val); } |
2203 | | #endif |
2204 | | QVariant::QVariant(const QList<QVariant> &list) |
2205 | | : d(List) |
2206 | 0 | { v_construct<QVariantList>(&d, list); } |
2207 | | QVariant::QVariant(const QMap<QString, QVariant> &map) |
2208 | | : d(Map) |
2209 | 0 | { v_construct<QVariantMap>(&d, map); } |
2210 | | QVariant::QVariant(const QHash<QString, QVariant> &hash) |
2211 | | : d(Hash) |
2212 | 0 | { v_construct<QVariantHash>(&d, hash); } |
2213 | | #ifndef QT_NO_GEOM_VARIANT |
2214 | | QVariant::QVariant(const QPoint &pt) |
2215 | | : d(Point) |
2216 | 0 | { v_construct<QPoint>(&d, pt); } |
2217 | | QVariant::QVariant(const QPointF &pt) |
2218 | | : d(PointF) |
2219 | 0 | { v_construct<QPointF>(&d, pt); } |
2220 | | QVariant::QVariant(const QRectF &r) |
2221 | | : d(RectF) |
2222 | 0 | { v_construct<QRectF>(&d, r); } |
2223 | | QVariant::QVariant(const QLineF &l) |
2224 | | : d(LineF) |
2225 | 0 | { v_construct<QLineF>(&d, l); } |
2226 | | QVariant::QVariant(const QLine &l) |
2227 | | : d(Line) |
2228 | 0 | { v_construct<QLine>(&d, l); } |
2229 | | QVariant::QVariant(const QRect &r) |
2230 | | : d(Rect) |
2231 | 0 | { v_construct<QRect>(&d, r); } |
2232 | | QVariant::QVariant(const QSize &s) |
2233 | | : d(Size) |
2234 | 0 | { v_construct<QSize>(&d, s); } |
2235 | | QVariant::QVariant(const QSizeF &s) |
2236 | | : d(SizeF) |
2237 | 0 | { v_construct<QSizeF>(&d, s); } |
2238 | | #endif |
2239 | | #ifndef QT_BOOTSTRAPPED |
2240 | | QVariant::QVariant(const QUrl &u) |
2241 | | : d(Url) |
2242 | 0 | { v_construct<QUrl>(&d, u); } |
2243 | | #endif |
2244 | | QVariant::QVariant(const QLocale &l) |
2245 | | : d(Locale) |
2246 | 0 | { v_construct<QLocale>(&d, l); } |
2247 | | #ifndef QT_NO_REGEXP |
2248 | | QVariant::QVariant(const QRegExp ®Exp) |
2249 | | : d(RegExp) |
2250 | 0 | { v_construct<QRegExp>(&d, regExp); } |
2251 | | #endif // QT_NO_REGEXP |
2252 | | #if QT_CONFIG(regularexpression) |
2253 | | QVariant::QVariant(const QRegularExpression &re) |
2254 | | : d(RegularExpression) |
2255 | 0 | { v_construct<QRegularExpression>(&d, re); } |
2256 | | #endif // QT_CONFIG(regularexpression) |
2257 | | QVariant::QVariant(const QUuid &uuid) |
2258 | | : d(Uuid) |
2259 | 0 | { v_construct<QUuid>(&d, uuid); } |
2260 | | #ifndef QT_BOOTSTRAPPED |
2261 | | QVariant::QVariant(const QJsonValue &jsonValue) |
2262 | | : d(QMetaType::QJsonValue) |
2263 | 0 | { v_construct<QJsonValue>(&d, jsonValue); } |
2264 | | QVariant::QVariant(const QJsonObject &jsonObject) |
2265 | | : d(QMetaType::QJsonObject) |
2266 | 0 | { v_construct<QJsonObject>(&d, jsonObject); } |
2267 | | QVariant::QVariant(const QJsonArray &jsonArray) |
2268 | | : d(QMetaType::QJsonArray) |
2269 | 0 | { v_construct<QJsonArray>(&d, jsonArray); } |
2270 | | QVariant::QVariant(const QJsonDocument &jsonDocument) |
2271 | | : d(QMetaType::QJsonDocument) |
2272 | 0 | { v_construct<QJsonDocument>(&d, jsonDocument); } |
2273 | | #endif // QT_BOOTSTRAPPED |
2274 | | #if QT_CONFIG(itemmodel) |
2275 | | QVariant::QVariant(const QModelIndex &modelIndex) |
2276 | | : d(ModelIndex) |
2277 | 0 | { v_construct<QModelIndex>(&d, modelIndex); } |
2278 | | QVariant::QVariant(const QPersistentModelIndex &modelIndex) |
2279 | | : d(PersistentModelIndex) |
2280 | 0 | { v_construct<QPersistentModelIndex>(&d, modelIndex); } |
2281 | | #endif |
2282 | | |
2283 | | /*! |
2284 | | Returns the storage type of the value stored in the variant. |
2285 | | Although this function is declared as returning QVariant::Type, |
2286 | | the return value should be interpreted as QMetaType::Type. In |
2287 | | particular, QVariant::UserType is returned here only if the value |
2288 | | is equal or greater than QMetaType::User. |
2289 | | |
2290 | | Note that return values in the ranges QVariant::Char through |
2291 | | QVariant::RegExp and QVariant::Font through QVariant::Transform |
2292 | | correspond to the values in the ranges QMetaType::QChar through |
2293 | | QMetaType::QRegExp and QMetaType::QFont through QMetaType::QQuaternion. |
2294 | | |
2295 | | Pay particular attention when working with char and QChar |
2296 | | variants. Note that there is no QVariant constructor specifically |
2297 | | for type char, but there is one for QChar. For a variant of type |
2298 | | QChar, this function returns QVariant::Char, which is the same as |
2299 | | QMetaType::QChar, but for a variant of type \c char, this function |
2300 | | returns QMetaType::Char, which is \e not the same as |
2301 | | QVariant::Char. |
2302 | | |
2303 | | Also note that the types \c void*, \c long, \c short, \c unsigned |
2304 | | \c long, \c unsigned \c short, \c unsigned \c char, \c float, \c |
2305 | | QObject*, and \c QWidget* are represented in QMetaType::Type but |
2306 | | not in QVariant::Type, and they can be returned by this function. |
2307 | | However, they are considered to be user defined types when tested |
2308 | | against QVariant::Type. |
2309 | | |
2310 | | To test whether an instance of QVariant contains a data type that |
2311 | | is compatible with the data type you are interested in, use |
2312 | | canConvert(). |
2313 | | */ |
2314 | | |
2315 | | QVariant::Type QVariant::type() const |
2316 | 0 | { |
2317 | 0 | return d.type >= QMetaType::User ? UserType : static_cast<Type>(d.type); |
2318 | 0 | } |
2319 | | |
2320 | | /*! |
2321 | | Returns the storage type of the value stored in the variant. For |
2322 | | non-user types, this is the same as type(). |
2323 | | |
2324 | | \sa type() |
2325 | | */ |
2326 | | |
2327 | | int QVariant::userType() const |
2328 | 0 | { |
2329 | 0 | return d.type; |
2330 | 0 | } |
2331 | | |
2332 | | /*! |
2333 | | Assigns the value of the variant \a variant to this variant. |
2334 | | */ |
2335 | | QVariant& QVariant::operator=(const QVariant &variant) |
2336 | 0 | { |
2337 | 0 | if (this == &variant) |
2338 | 0 | return *this; |
2339 | | |
2340 | 0 | clear(); |
2341 | 0 | if (variant.d.is_shared) { |
2342 | 0 | variant.d.data.shared->ref.ref(); |
2343 | 0 | d = variant.d; |
2344 | 0 | } else if (variant.d.type > Char) { |
2345 | 0 | d.type = variant.d.type; |
2346 | 0 | handlerManager[d.type]->construct(&d, variant.constData()); |
2347 | 0 | d.is_null = variant.d.is_null; |
2348 | 0 | } else { |
2349 | 0 | d = variant.d; |
2350 | 0 | } |
2351 | |
|
2352 | 0 | return *this; |
2353 | 0 | } |
2354 | | |
2355 | | /*! |
2356 | | \fn void QVariant::swap(QVariant &other) |
2357 | | \since 4.8 |
2358 | | |
2359 | | Swaps variant \a other with this variant. This operation is very |
2360 | | fast and never fails. |
2361 | | */ |
2362 | | |
2363 | | /*! |
2364 | | \fn void QVariant::detach() |
2365 | | |
2366 | | \internal |
2367 | | */ |
2368 | | |
2369 | | void QVariant::detach() |
2370 | 0 | { |
2371 | 0 | if (!d.is_shared || d.data.shared->ref.loadRelaxed() == 1) |
2372 | 0 | return; |
2373 | | |
2374 | 0 | Private dd; |
2375 | 0 | dd.type = d.type; |
2376 | 0 | handlerManager[d.type]->construct(&dd, constData()); |
2377 | 0 | if (!d.data.shared->ref.deref()) |
2378 | 0 | handlerManager[d.type]->clear(&d); |
2379 | 0 | d.data.shared = dd.data.shared; |
2380 | 0 | } |
2381 | | |
2382 | | /*! |
2383 | | \fn bool QVariant::isDetached() const |
2384 | | |
2385 | | \internal |
2386 | | */ |
2387 | | |
2388 | | /*! |
2389 | | Returns the name of the type stored in the variant. The returned |
2390 | | strings describe the C++ datatype used to store the data: for |
2391 | | example, "QFont", "QString", or "QVariantList". An Invalid |
2392 | | variant returns 0. |
2393 | | */ |
2394 | | const char *QVariant::typeName() const |
2395 | 0 | { |
2396 | 0 | return QMetaType::typeName(d.type); |
2397 | 0 | } |
2398 | | |
2399 | | /*! |
2400 | | Convert this variant to type QMetaType::UnknownType and free up any resources |
2401 | | used. |
2402 | | */ |
2403 | | void QVariant::clear() |
2404 | 0 | { |
2405 | 0 | if ((d.is_shared && !d.data.shared->ref.deref()) || (!d.is_shared && d.type > Char)) |
2406 | 0 | handlerManager[d.type]->clear(&d); |
2407 | 0 | d.type = Invalid; |
2408 | 0 | d.is_null = true; |
2409 | 0 | d.is_shared = false; |
2410 | 0 | } |
2411 | | |
2412 | | /*! |
2413 | | Converts the int representation of the storage type, \a typeId, to |
2414 | | its string representation. |
2415 | | |
2416 | | Returns \nullptr if the type is QMetaType::UnknownType or doesn't exist. |
2417 | | */ |
2418 | | const char *QVariant::typeToName(int typeId) |
2419 | 0 | { |
2420 | 0 | return QMetaType::typeName(typeId); |
2421 | 0 | } |
2422 | | |
2423 | | |
2424 | | /*! |
2425 | | Converts the string representation of the storage type given in \a |
2426 | | name, to its enum representation. |
2427 | | |
2428 | | If the string representation cannot be converted to any enum |
2429 | | representation, the variant is set to \c Invalid. |
2430 | | */ |
2431 | | QVariant::Type QVariant::nameToType(const char *name) |
2432 | 0 | { |
2433 | 0 | int metaType = QMetaType::type(name); |
2434 | 0 | return metaType <= int(UserType) ? QVariant::Type(metaType) : UserType; |
2435 | 0 | } |
2436 | | |
2437 | | #ifndef QT_NO_DATASTREAM |
2438 | | enum { MapFromThreeCount = 36 }; |
2439 | | static const ushort mapIdFromQt3ToCurrent[MapFromThreeCount] = |
2440 | | { |
2441 | | QMetaType::UnknownType, |
2442 | | QMetaType::QVariantMap, |
2443 | | QMetaType::QVariantList, |
2444 | | QMetaType::QString, |
2445 | | QMetaType::QStringList, |
2446 | | QMetaType::QFont, |
2447 | | QMetaType::QPixmap, |
2448 | | QMetaType::QBrush, |
2449 | | QMetaType::QRect, |
2450 | | QMetaType::QSize, |
2451 | | QMetaType::QColor, |
2452 | | QMetaType::QPalette, |
2453 | | 0, // ColorGroup |
2454 | | QMetaType::QIcon, |
2455 | | QMetaType::QPoint, |
2456 | | QMetaType::QImage, |
2457 | | QMetaType::Int, |
2458 | | QMetaType::UInt, |
2459 | | QMetaType::Bool, |
2460 | | QMetaType::Double, |
2461 | | 0, // Buggy ByteArray, QByteArray never had id == 20 |
2462 | | QMetaType::QPolygon, |
2463 | | QMetaType::QRegion, |
2464 | | QMetaType::QBitmap, |
2465 | | QMetaType::QCursor, |
2466 | | QMetaType::QSizePolicy, |
2467 | | QMetaType::QDate, |
2468 | | QMetaType::QTime, |
2469 | | QMetaType::QDateTime, |
2470 | | QMetaType::QByteArray, |
2471 | | QMetaType::QBitArray, |
2472 | | QMetaType::QKeySequence, |
2473 | | QMetaType::QPen, |
2474 | | QMetaType::LongLong, |
2475 | | QMetaType::ULongLong, |
2476 | | #if QT_CONFIG(easingcurve) |
2477 | | QMetaType::QEasingCurve |
2478 | | #endif |
2479 | | }; |
2480 | | |
2481 | | /*! |
2482 | | Internal function for loading a variant from stream \a s. Use the |
2483 | | stream operators instead. |
2484 | | |
2485 | | \internal |
2486 | | */ |
2487 | | void QVariant::load(QDataStream &s) |
2488 | 0 | { |
2489 | 0 | clear(); |
2490 | |
|
2491 | 0 | quint32 typeId; |
2492 | 0 | s >> typeId; |
2493 | 0 | if (s.version() < QDataStream::Qt_4_0) { |
2494 | 0 | if (typeId >= MapFromThreeCount) |
2495 | 0 | return; |
2496 | 0 | typeId = mapIdFromQt3ToCurrent[typeId]; |
2497 | 0 | } else if (s.version() < QDataStream::Qt_5_0) { |
2498 | 0 | if (typeId == 127 /* QVariant::UserType */) { |
2499 | 0 | typeId = QMetaType::User; |
2500 | 0 | } else if (typeId >= 128 && typeId != QVariant::UserType) { |
2501 | | // In Qt4 id == 128 was FirstExtCoreType. In Qt5 ExtCoreTypes set was merged to CoreTypes |
2502 | | // by moving all ids down by 97. |
2503 | 0 | typeId -= 97; |
2504 | 0 | } else if (typeId == 75 /* QSizePolicy */) { |
2505 | 0 | typeId = QMetaType::QSizePolicy; |
2506 | 0 | } else if (typeId > 75 && typeId <= 86) { |
2507 | | // and as a result these types received lower ids too |
2508 | | // QKeySequence QPen QTextLength QTextFormat QMatrix QTransform QMatrix4x4 QVector2D QVector3D QVector4D QQuaternion |
2509 | 0 | typeId -=1; |
2510 | 0 | } |
2511 | 0 | } |
2512 | | |
2513 | 0 | qint8 is_null = false; |
2514 | 0 | if (s.version() >= QDataStream::Qt_4_2) |
2515 | 0 | s >> is_null; |
2516 | 0 | if (typeId == QVariant::UserType) { |
2517 | 0 | QByteArray name; |
2518 | 0 | s >> name; |
2519 | 0 | typeId = QMetaType::type(name.constData()); |
2520 | 0 | if (typeId == QMetaType::UnknownType) { |
2521 | 0 | s.setStatus(QDataStream::ReadCorruptData); |
2522 | 0 | qWarning("QVariant::load: unknown user type with name %s.", name.constData()); |
2523 | 0 | return; |
2524 | 0 | } |
2525 | 0 | } |
2526 | 0 | create(typeId, nullptr); |
2527 | 0 | d.is_null = is_null; |
2528 | |
|
2529 | 0 | if (!isValid()) { |
2530 | 0 | if (s.version() < QDataStream::Qt_5_0) { |
2531 | | // Since we wrote something, we should read something |
2532 | 0 | QString x; |
2533 | 0 | s >> x; |
2534 | 0 | } |
2535 | 0 | d.is_null = true; |
2536 | 0 | return; |
2537 | 0 | } |
2538 | | |
2539 | | // const cast is safe since we operate on a newly constructed variant |
2540 | 0 | if (!QMetaType::load(s, d.type, const_cast<void *>(constData()))) { |
2541 | 0 | s.setStatus(QDataStream::ReadCorruptData); |
2542 | 0 | qWarning("QVariant::load: unable to load type %d.", d.type); |
2543 | 0 | } |
2544 | 0 | } |
2545 | | |
2546 | | /*! |
2547 | | Internal function for saving a variant to the stream \a s. Use the |
2548 | | stream operators instead. |
2549 | | |
2550 | | \internal |
2551 | | */ |
2552 | | void QVariant::save(QDataStream &s) const |
2553 | 0 | { |
2554 | 0 | quint32 typeId = d.type >= QMetaType::User ? QMetaType::User : userType(); |
2555 | 0 | bool fakeUserType = false; |
2556 | 0 | if (s.version() < QDataStream::Qt_4_0) { |
2557 | 0 | int i; |
2558 | 0 | for (i = 0; i <= MapFromThreeCount - 1; ++i) { |
2559 | 0 | if (mapIdFromQt3ToCurrent[i] == typeId) { |
2560 | 0 | typeId = i; |
2561 | 0 | break; |
2562 | 0 | } |
2563 | 0 | } |
2564 | 0 | if (i >= MapFromThreeCount) { |
2565 | 0 | s << QVariant(); |
2566 | 0 | return; |
2567 | 0 | } |
2568 | 0 | } else if (s.version() < QDataStream::Qt_5_0) { |
2569 | 0 | if (typeId == QMetaType::User) { |
2570 | 0 | typeId = 127; // QVariant::UserType had this value in Qt4 |
2571 | 0 | } else if (typeId >= 128 - 97 && typeId <= LastCoreType) { |
2572 | | // In Qt4 id == 128 was FirstExtCoreType. In Qt5 ExtCoreTypes set was merged to CoreTypes |
2573 | | // by moving all ids down by 97. |
2574 | 0 | typeId += 97; |
2575 | 0 | } else if (typeId == QMetaType::QSizePolicy) { |
2576 | 0 | typeId = 75; |
2577 | 0 | } else if (typeId >= QMetaType::QKeySequence && typeId <= QMetaType::QQuaternion) { |
2578 | | // and as a result these types received lower ids too |
2579 | 0 | typeId +=1; |
2580 | 0 | } else if (typeId == QMetaType::QPolygonF || typeId == QMetaType::QUuid) { |
2581 | | // These existed in Qt 4 only as a custom type |
2582 | 0 | typeId = 127; |
2583 | 0 | fakeUserType = true; |
2584 | 0 | } |
2585 | 0 | } |
2586 | 0 | s << typeId; |
2587 | 0 | if (s.version() >= QDataStream::Qt_4_2) |
2588 | 0 | s << qint8(d.is_null); |
2589 | 0 | if (d.type >= QVariant::UserType || fakeUserType) { |
2590 | 0 | s << QMetaType::typeName(userType()); |
2591 | 0 | } |
2592 | |
|
2593 | 0 | if (!isValid()) { |
2594 | 0 | if (s.version() < QDataStream::Qt_5_0) |
2595 | 0 | s << QString(); |
2596 | 0 | return; |
2597 | 0 | } |
2598 | | |
2599 | 0 | if (!QMetaType::save(s, d.type, constData())) { |
2600 | 0 | qWarning("QVariant::save: unable to save type '%s' (type id: %d).\n", QMetaType::typeName(d.type), d.type); |
2601 | 0 | Q_ASSERT_X(false, "QVariant::save", "Invalid type to save"); |
2602 | 0 | } |
2603 | 0 | } |
2604 | | |
2605 | | /*! |
2606 | | \since 4.4 |
2607 | | |
2608 | | Reads a variant \a p from the stream \a s. |
2609 | | |
2610 | | \sa{Serializing Qt Data Types}{Format of the QDataStream operators} |
2611 | | */ |
2612 | | QDataStream& operator>>(QDataStream &s, QVariant &p) |
2613 | 0 | { |
2614 | 0 | p.load(s); |
2615 | 0 | return s; |
2616 | 0 | } |
2617 | | |
2618 | | /*! |
2619 | | Writes a variant \a p to the stream \a s. |
2620 | | |
2621 | | \sa{Serializing Qt Data Types}{Format of the QDataStream operators} |
2622 | | */ |
2623 | | QDataStream& operator<<(QDataStream &s, const QVariant &p) |
2624 | 0 | { |
2625 | 0 | p.save(s); |
2626 | 0 | return s; |
2627 | 0 | } |
2628 | | |
2629 | | /*! |
2630 | | Reads a variant type \a p in enum representation from the stream \a s. |
2631 | | */ |
2632 | | QDataStream& operator>>(QDataStream &s, QVariant::Type &p) |
2633 | 0 | { |
2634 | 0 | quint32 u; |
2635 | 0 | s >> u; |
2636 | 0 | p = (QVariant::Type)u; |
2637 | |
|
2638 | 0 | return s; |
2639 | 0 | } |
2640 | | |
2641 | | /*! |
2642 | | Writes a variant type \a p to the stream \a s. |
2643 | | */ |
2644 | | QDataStream& operator<<(QDataStream &s, const QVariant::Type p) |
2645 | 0 | { |
2646 | 0 | s << static_cast<quint32>(p); |
2647 | |
|
2648 | 0 | return s; |
2649 | 0 | } |
2650 | | |
2651 | | #endif //QT_NO_DATASTREAM |
2652 | | |
2653 | | /*! |
2654 | | \fn bool QVariant::isValid() const |
2655 | | |
2656 | | Returns \c true if the storage type of this variant is not |
2657 | | QMetaType::UnknownType; otherwise returns \c false. |
2658 | | */ |
2659 | | |
2660 | | template <typename T> |
2661 | | inline T qVariantToHelper(const QVariant::Private &d, const HandlersManager &handlerManager) |
2662 | 10 | { |
2663 | 10 | const uint targetType = qMetaTypeId<T>(); |
2664 | 10 | if (d.type == targetType) |
2665 | 0 | return *v_cast<T>(&d); |
2666 | | |
2667 | 10 | T ret; |
2668 | 10 | if (d.type >= QMetaType::User || targetType >= QMetaType::User) { |
2669 | 0 | const void * const from = constData(d); |
2670 | 0 | if (QMetaType::convert(from, d.type, &ret, targetType)) |
2671 | 0 | return ret; |
2672 | 0 | } |
2673 | | |
2674 | 10 | handlerManager[d.type]->convert(&d, targetType, &ret, nullptr); |
2675 | 10 | return ret; |
2676 | 10 | } Unexecuted instantiation: qvariant.cpp:QStringList qVariantToHelper<QStringList>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) qvariant.cpp:QString qVariantToHelper<QString>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Line | Count | Source | 2662 | 10 | { | 2663 | 10 | const uint targetType = qMetaTypeId<T>(); | 2664 | 10 | if (d.type == targetType) | 2665 | 0 | return *v_cast<T>(&d); | 2666 | | | 2667 | 10 | T ret; | 2668 | 10 | if (d.type >= QMetaType::User || targetType >= QMetaType::User) { | 2669 | 0 | const void * const from = constData(d); | 2670 | 0 | if (QMetaType::convert(from, d.type, &ret, targetType)) | 2671 | 0 | return ret; | 2672 | 0 | } | 2673 | | | 2674 | 10 | handlerManager[d.type]->convert(&d, targetType, &ret, nullptr); | 2675 | 10 | return ret; | 2676 | 10 | } |
Unexecuted instantiation: qvariant.cpp:QMap<QString, QVariant> qVariantToHelper<QMap<QString, QVariant> >(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QHash<QString, QVariant> qVariantToHelper<QHash<QString, QVariant> >(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QDate qVariantToHelper<QDate>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QTime qVariantToHelper<QTime>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QDateTime qVariantToHelper<QDateTime>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QEasingCurve qVariantToHelper<QEasingCurve>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QByteArray qVariantToHelper<QByteArray>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QPoint qVariantToHelper<QPoint>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QRect qVariantToHelper<QRect>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QSize qVariantToHelper<QSize>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QSizeF qVariantToHelper<QSizeF>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QRectF qVariantToHelper<QRectF>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QLineF qVariantToHelper<QLineF>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QLine qVariantToHelper<QLine>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QPointF qVariantToHelper<QPointF>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QUrl qVariantToHelper<QUrl>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QLocale qVariantToHelper<QLocale>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QRegExp qVariantToHelper<QRegExp>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QRegularExpression qVariantToHelper<QRegularExpression>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QModelIndex qVariantToHelper<QModelIndex>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QPersistentModelIndex qVariantToHelper<QPersistentModelIndex>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QUuid qVariantToHelper<QUuid>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QJsonValue qVariantToHelper<QJsonValue>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QJsonObject qVariantToHelper<QJsonObject>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QJsonArray qVariantToHelper<QJsonArray>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QJsonDocument qVariantToHelper<QJsonDocument>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QChar qVariantToHelper<QChar>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QBitArray qVariantToHelper<QBitArray>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) Unexecuted instantiation: qvariant.cpp:QList<QVariant> qVariantToHelper<QList<QVariant> >(QVariant::Private const&, (anonymous namespace)::HandlersManager const&) |
2677 | | |
2678 | | /*! |
2679 | | \fn QStringList QVariant::toStringList() const |
2680 | | |
2681 | | Returns the variant as a QStringList if the variant has userType() |
2682 | | \l QMetaType::QStringList, \l QMetaType::QString, or |
2683 | | \l QMetaType::QVariantList of a type that can be converted to QString; |
2684 | | otherwise returns an empty list. |
2685 | | |
2686 | | \sa canConvert(int targetTypeId), convert() |
2687 | | */ |
2688 | | QStringList QVariant::toStringList() const |
2689 | 0 | { |
2690 | 0 | return qVariantToHelper<QStringList>(d, handlerManager); |
2691 | 0 | } |
2692 | | |
2693 | | /*! |
2694 | | Returns the variant as a QString if the variant has a userType() |
2695 | | including, but not limited to: |
2696 | | |
2697 | | \l QMetaType::QString, \l QMetaType::Bool, \l QMetaType::QByteArray, |
2698 | | \l QMetaType::QChar, \l QMetaType::QDate, \l QMetaType::QDateTime, |
2699 | | \l QMetaType::Double, \l QMetaType::Int, \l QMetaType::LongLong, |
2700 | | \l QMetaType::QStringList, \l QMetaType::QTime, \l QMetaType::UInt, or |
2701 | | \l QMetaType::ULongLong. |
2702 | | |
2703 | | Calling QVariant::toString() on an unsupported variant returns an empty |
2704 | | string. |
2705 | | |
2706 | | \sa canConvert(int targetTypeId), convert() |
2707 | | */ |
2708 | | QString QVariant::toString() const |
2709 | 10 | { |
2710 | 10 | return qVariantToHelper<QString>(d, handlerManager); |
2711 | 10 | } |
2712 | | |
2713 | | /*! |
2714 | | Returns the variant as a QMap<QString, QVariant> if the variant |
2715 | | has type() \l QMetaType::QVariantMap; otherwise returns an empty map. |
2716 | | |
2717 | | \sa canConvert(int targetTypeId), convert() |
2718 | | */ |
2719 | | QVariantMap QVariant::toMap() const |
2720 | 0 | { |
2721 | 0 | return qVariantToHelper<QVariantMap>(d, handlerManager); |
2722 | 0 | } |
2723 | | |
2724 | | /*! |
2725 | | Returns the variant as a QHash<QString, QVariant> if the variant |
2726 | | has type() \l QMetaType::QVariantHash; otherwise returns an empty map. |
2727 | | |
2728 | | \sa canConvert(int targetTypeId), convert() |
2729 | | */ |
2730 | | QVariantHash QVariant::toHash() const |
2731 | 0 | { |
2732 | 0 | return qVariantToHelper<QVariantHash>(d, handlerManager); |
2733 | 0 | } |
2734 | | |
2735 | | /*! |
2736 | | \fn QDate QVariant::toDate() const |
2737 | | |
2738 | | Returns the variant as a QDate if the variant has userType() |
2739 | | \l QMetaType::QDate, \l QMetaType::QDateTime, or \l QMetaType::QString; |
2740 | | otherwise returns an invalid date. |
2741 | | |
2742 | | If the type() is \l QMetaType::QString, an invalid date will be returned if |
2743 | | the string cannot be parsed as a Qt::ISODate format date. |
2744 | | |
2745 | | \sa canConvert(int targetTypeId), convert() |
2746 | | */ |
2747 | | QDate QVariant::toDate() const |
2748 | 0 | { |
2749 | 0 | return qVariantToHelper<QDate>(d, handlerManager); |
2750 | 0 | } |
2751 | | |
2752 | | /*! |
2753 | | \fn QTime QVariant::toTime() const |
2754 | | |
2755 | | Returns the variant as a QTime if the variant has userType() |
2756 | | \l QMetaType::QTime, \l QMetaType::QDateTime, or \l QMetaType::QString; |
2757 | | otherwise returns an invalid time. |
2758 | | |
2759 | | If the type() is \l QMetaType::QString, an invalid time will be returned if |
2760 | | the string cannot be parsed as a Qt::ISODate format time. |
2761 | | |
2762 | | \sa canConvert(int targetTypeId), convert() |
2763 | | */ |
2764 | | QTime QVariant::toTime() const |
2765 | 0 | { |
2766 | 0 | return qVariantToHelper<QTime>(d, handlerManager); |
2767 | 0 | } |
2768 | | |
2769 | | /*! |
2770 | | \fn QDateTime QVariant::toDateTime() const |
2771 | | |
2772 | | Returns the variant as a QDateTime if the variant has userType() |
2773 | | \l QMetaType::QDateTime, \l QMetaType::QDate, or \l QMetaType::QString; |
2774 | | otherwise returns an invalid date/time. |
2775 | | |
2776 | | If the type() is \l QMetaType::QString, an invalid date/time will be |
2777 | | returned if the string cannot be parsed as a Qt::ISODate format date/time. |
2778 | | |
2779 | | \sa canConvert(int targetTypeId), convert() |
2780 | | */ |
2781 | | QDateTime QVariant::toDateTime() const |
2782 | 0 | { |
2783 | 0 | return qVariantToHelper<QDateTime>(d, handlerManager); |
2784 | 0 | } |
2785 | | |
2786 | | /*! |
2787 | | \since 4.7 |
2788 | | \fn QEasingCurve QVariant::toEasingCurve() const |
2789 | | |
2790 | | Returns the variant as a QEasingCurve if the variant has userType() |
2791 | | \l QMetaType::QEasingCurve; otherwise returns a default easing curve. |
2792 | | |
2793 | | \sa canConvert(int targetTypeId), convert() |
2794 | | */ |
2795 | | #if QT_CONFIG(easingcurve) |
2796 | | QEasingCurve QVariant::toEasingCurve() const |
2797 | 0 | { |
2798 | 0 | return qVariantToHelper<QEasingCurve>(d, handlerManager); |
2799 | 0 | } |
2800 | | #endif |
2801 | | |
2802 | | /*! |
2803 | | \fn QByteArray QVariant::toByteArray() const |
2804 | | |
2805 | | Returns the variant as a QByteArray if the variant has userType() |
2806 | | \l QMetaType::QByteArray or \l QMetaType::QString (converted using |
2807 | | QString::fromUtf8()); otherwise returns an empty byte array. |
2808 | | |
2809 | | \sa canConvert(int targetTypeId), convert() |
2810 | | */ |
2811 | | QByteArray QVariant::toByteArray() const |
2812 | 0 | { |
2813 | 0 | return qVariantToHelper<QByteArray>(d, handlerManager); |
2814 | 0 | } |
2815 | | |
2816 | | #ifndef QT_NO_GEOM_VARIANT |
2817 | | /*! |
2818 | | \fn QPoint QVariant::toPoint() const |
2819 | | |
2820 | | Returns the variant as a QPoint if the variant has userType() |
2821 | | \l QMetaType::QPoint or \l QMetaType::QPointF; otherwise returns a null |
2822 | | QPoint. |
2823 | | |
2824 | | \sa canConvert(int targetTypeId), convert() |
2825 | | */ |
2826 | | QPoint QVariant::toPoint() const |
2827 | 0 | { |
2828 | 0 | return qVariantToHelper<QPoint>(d, handlerManager); |
2829 | 0 | } |
2830 | | |
2831 | | /*! |
2832 | | \fn QRect QVariant::toRect() const |
2833 | | |
2834 | | Returns the variant as a QRect if the variant has userType() |
2835 | | \l QMetaType::QRect; otherwise returns an invalid QRect. |
2836 | | |
2837 | | \sa canConvert(int targetTypeId), convert() |
2838 | | */ |
2839 | | QRect QVariant::toRect() const |
2840 | 0 | { |
2841 | 0 | return qVariantToHelper<QRect>(d, handlerManager); |
2842 | 0 | } |
2843 | | |
2844 | | /*! |
2845 | | \fn QSize QVariant::toSize() const |
2846 | | |
2847 | | Returns the variant as a QSize if the variant has userType() |
2848 | | \l QMetaType::QSize; otherwise returns an invalid QSize. |
2849 | | |
2850 | | \sa canConvert(int targetTypeId), convert() |
2851 | | */ |
2852 | | QSize QVariant::toSize() const |
2853 | 0 | { |
2854 | 0 | return qVariantToHelper<QSize>(d, handlerManager); |
2855 | 0 | } |
2856 | | |
2857 | | /*! |
2858 | | \fn QSizeF QVariant::toSizeF() const |
2859 | | |
2860 | | Returns the variant as a QSizeF if the variant has userType() \l |
2861 | | QMetaType::QSizeF; otherwise returns an invalid QSizeF. |
2862 | | |
2863 | | \sa canConvert(int targetTypeId), convert() |
2864 | | */ |
2865 | | QSizeF QVariant::toSizeF() const |
2866 | 0 | { |
2867 | 0 | return qVariantToHelper<QSizeF>(d, handlerManager); |
2868 | 0 | } |
2869 | | |
2870 | | /*! |
2871 | | \fn QRectF QVariant::toRectF() const |
2872 | | |
2873 | | Returns the variant as a QRectF if the variant has userType() |
2874 | | \l QMetaType::QRect or \l QMetaType::QRectF; otherwise returns an invalid |
2875 | | QRectF. |
2876 | | |
2877 | | \sa canConvert(int targetTypeId), convert() |
2878 | | */ |
2879 | | QRectF QVariant::toRectF() const |
2880 | 0 | { |
2881 | 0 | return qVariantToHelper<QRectF>(d, handlerManager); |
2882 | 0 | } |
2883 | | |
2884 | | /*! |
2885 | | \fn QLineF QVariant::toLineF() const |
2886 | | |
2887 | | Returns the variant as a QLineF if the variant has userType() |
2888 | | \l QMetaType::QLineF; otherwise returns an invalid QLineF. |
2889 | | |
2890 | | \sa canConvert(int targetTypeId), convert() |
2891 | | */ |
2892 | | QLineF QVariant::toLineF() const |
2893 | 0 | { |
2894 | 0 | return qVariantToHelper<QLineF>(d, handlerManager); |
2895 | 0 | } |
2896 | | |
2897 | | /*! |
2898 | | \fn QLine QVariant::toLine() const |
2899 | | |
2900 | | Returns the variant as a QLine if the variant has userType() |
2901 | | \l QMetaType::QLine; otherwise returns an invalid QLine. |
2902 | | |
2903 | | \sa canConvert(int targetTypeId), convert() |
2904 | | */ |
2905 | | QLine QVariant::toLine() const |
2906 | 0 | { |
2907 | 0 | return qVariantToHelper<QLine>(d, handlerManager); |
2908 | 0 | } |
2909 | | |
2910 | | /*! |
2911 | | \fn QPointF QVariant::toPointF() const |
2912 | | |
2913 | | Returns the variant as a QPointF if the variant has userType() \l |
2914 | | QMetaType::QPoint or \l QMetaType::QPointF; otherwise returns a null |
2915 | | QPointF. |
2916 | | |
2917 | | \sa canConvert(int targetTypeId), convert() |
2918 | | */ |
2919 | | QPointF QVariant::toPointF() const |
2920 | 0 | { |
2921 | 0 | return qVariantToHelper<QPointF>(d, handlerManager); |
2922 | 0 | } |
2923 | | |
2924 | | #endif // QT_NO_GEOM_VARIANT |
2925 | | |
2926 | | #ifndef QT_BOOTSTRAPPED |
2927 | | /*! |
2928 | | \fn QUrl QVariant::toUrl() const |
2929 | | |
2930 | | Returns the variant as a QUrl if the variant has userType() |
2931 | | \l QMetaType::QUrl; otherwise returns an invalid QUrl. |
2932 | | |
2933 | | \sa canConvert(int targetTypeId), convert() |
2934 | | */ |
2935 | | QUrl QVariant::toUrl() const |
2936 | 0 | { |
2937 | 0 | return qVariantToHelper<QUrl>(d, handlerManager); |
2938 | 0 | } |
2939 | | #endif |
2940 | | |
2941 | | /*! |
2942 | | \fn QLocale QVariant::toLocale() const |
2943 | | |
2944 | | Returns the variant as a QLocale if the variant has userType() |
2945 | | \l QMetaType::QLocale; otherwise returns an invalid QLocale. |
2946 | | |
2947 | | \sa canConvert(int targetTypeId), convert() |
2948 | | */ |
2949 | | QLocale QVariant::toLocale() const |
2950 | 0 | { |
2951 | 0 | return qVariantToHelper<QLocale>(d, handlerManager); |
2952 | 0 | } |
2953 | | |
2954 | | /*! |
2955 | | \fn QRegExp QVariant::toRegExp() const |
2956 | | \since 4.1 |
2957 | | |
2958 | | Returns the variant as a QRegExp if the variant has userType() |
2959 | | \l QMetaType::QRegExp; otherwise returns an empty QRegExp. |
2960 | | |
2961 | | \sa canConvert(int targetTypeId), convert() |
2962 | | */ |
2963 | | #ifndef QT_NO_REGEXP |
2964 | | QRegExp QVariant::toRegExp() const |
2965 | 0 | { |
2966 | 0 | return qVariantToHelper<QRegExp>(d, handlerManager); |
2967 | 0 | } |
2968 | | #endif |
2969 | | |
2970 | | #if QT_CONFIG(regularexpression) |
2971 | | /*! |
2972 | | \fn QRegularExpression QVariant::toRegularExpression() const |
2973 | | \since 5.0 |
2974 | | |
2975 | | Returns the variant as a QRegularExpression if the variant has userType() \l |
2976 | | QRegularExpression; otherwise returns an empty QRegularExpression. |
2977 | | |
2978 | | \sa canConvert(int targetTypeId), convert() |
2979 | | */ |
2980 | | QRegularExpression QVariant::toRegularExpression() const |
2981 | 0 | { |
2982 | 0 | return qVariantToHelper<QRegularExpression>(d, handlerManager); |
2983 | 0 | } |
2984 | | #endif // QT_CONFIG(regularexpression) |
2985 | | |
2986 | | #if QT_CONFIG(itemmodel) |
2987 | | /*! |
2988 | | \since 5.0 |
2989 | | |
2990 | | Returns the variant as a QModelIndex if the variant has userType() \l |
2991 | | QModelIndex; otherwise returns a default constructed QModelIndex. |
2992 | | |
2993 | | \sa canConvert(int targetTypeId), convert(), toPersistentModelIndex() |
2994 | | */ |
2995 | | QModelIndex QVariant::toModelIndex() const |
2996 | 0 | { |
2997 | 0 | return qVariantToHelper<QModelIndex>(d, handlerManager); |
2998 | 0 | } |
2999 | | |
3000 | | /*! |
3001 | | \since 5.5 |
3002 | | |
3003 | | Returns the variant as a QPersistentModelIndex if the variant has userType() \l |
3004 | | QPersistentModelIndex; otherwise returns a default constructed QPersistentModelIndex. |
3005 | | |
3006 | | \sa canConvert(int targetTypeId), convert(), toModelIndex() |
3007 | | */ |
3008 | | QPersistentModelIndex QVariant::toPersistentModelIndex() const |
3009 | 0 | { |
3010 | 0 | return qVariantToHelper<QPersistentModelIndex>(d, handlerManager); |
3011 | 0 | } |
3012 | | #endif // QT_CONFIG(itemmodel) |
3013 | | |
3014 | | /*! |
3015 | | \since 5.0 |
3016 | | |
3017 | | Returns the variant as a QUuid if the variant has type() |
3018 | | \l QMetaType::QUuid, \l QMetaType::QByteArray or \l QMetaType::QString; |
3019 | | otherwise returns a default-constructed QUuid. |
3020 | | |
3021 | | \sa canConvert(int targetTypeId), convert() |
3022 | | */ |
3023 | | QUuid QVariant::toUuid() const |
3024 | 0 | { |
3025 | 0 | return qVariantToHelper<QUuid>(d, handlerManager); |
3026 | 0 | } |
3027 | | |
3028 | | #ifndef QT_BOOTSTRAPPED |
3029 | | /*! |
3030 | | \since 5.0 |
3031 | | |
3032 | | Returns the variant as a QJsonValue if the variant has userType() \l |
3033 | | QJsonValue; otherwise returns a default constructed QJsonValue. |
3034 | | |
3035 | | \sa canConvert(int targetTypeId), convert() |
3036 | | */ |
3037 | | QJsonValue QVariant::toJsonValue() const |
3038 | 0 | { |
3039 | 0 | return qVariantToHelper<QJsonValue>(d, handlerManager); |
3040 | 0 | } |
3041 | | |
3042 | | /*! |
3043 | | \since 5.0 |
3044 | | |
3045 | | Returns the variant as a QJsonObject if the variant has userType() \l |
3046 | | QJsonObject; otherwise returns a default constructed QJsonObject. |
3047 | | |
3048 | | \sa canConvert(int targetTypeId), convert() |
3049 | | */ |
3050 | | QJsonObject QVariant::toJsonObject() const |
3051 | 0 | { |
3052 | 0 | return qVariantToHelper<QJsonObject>(d, handlerManager); |
3053 | 0 | } |
3054 | | |
3055 | | /*! |
3056 | | \since 5.0 |
3057 | | |
3058 | | Returns the variant as a QJsonArray if the variant has userType() \l |
3059 | | QJsonArray; otherwise returns a default constructed QJsonArray. |
3060 | | |
3061 | | \sa canConvert(int targetTypeId), convert() |
3062 | | */ |
3063 | | QJsonArray QVariant::toJsonArray() const |
3064 | 0 | { |
3065 | 0 | return qVariantToHelper<QJsonArray>(d, handlerManager); |
3066 | 0 | } |
3067 | | |
3068 | | /*! |
3069 | | \since 5.0 |
3070 | | |
3071 | | Returns the variant as a QJsonDocument if the variant has userType() \l |
3072 | | QJsonDocument; otherwise returns a default constructed QJsonDocument. |
3073 | | |
3074 | | \sa canConvert(int targetTypeId), convert() |
3075 | | */ |
3076 | | QJsonDocument QVariant::toJsonDocument() const |
3077 | 0 | { |
3078 | 0 | return qVariantToHelper<QJsonDocument>(d, handlerManager); |
3079 | 0 | } |
3080 | | #endif // QT_BOOTSTRAPPED |
3081 | | |
3082 | | /*! |
3083 | | \fn QChar QVariant::toChar() const |
3084 | | |
3085 | | Returns the variant as a QChar if the variant has userType() |
3086 | | \l QMetaType::QChar, \l QMetaType::Int, or \l QMetaType::UInt; otherwise |
3087 | | returns an invalid QChar. |
3088 | | |
3089 | | \sa canConvert(int targetTypeId), convert() |
3090 | | */ |
3091 | | QChar QVariant::toChar() const |
3092 | 0 | { |
3093 | 0 | return qVariantToHelper<QChar>(d, handlerManager); |
3094 | 0 | } |
3095 | | |
3096 | | /*! |
3097 | | Returns the variant as a QBitArray if the variant has userType() |
3098 | | \l QMetaType::QBitArray; otherwise returns an empty bit array. |
3099 | | |
3100 | | \sa canConvert(int targetTypeId), convert() |
3101 | | */ |
3102 | | QBitArray QVariant::toBitArray() const |
3103 | 0 | { |
3104 | 0 | return qVariantToHelper<QBitArray>(d, handlerManager); |
3105 | 0 | } |
3106 | | |
3107 | | template <typename T> |
3108 | | inline T qNumVariantToHelper(const QVariant::Private &d, |
3109 | | const HandlersManager &handlerManager, bool *ok, const T& val) |
3110 | 0 | { |
3111 | 0 | const uint t = qMetaTypeId<T>(); |
3112 | 0 | if (ok) |
3113 | 0 | *ok = true; |
3114 | |
|
3115 | 0 | if (d.type == t) |
3116 | 0 | return val; |
3117 | | |
3118 | 0 | T ret = 0; |
3119 | 0 | if ((d.type >= QMetaType::User || t >= QMetaType::User) |
3120 | 0 | && QMetaType::convert(constData(d), d.type, &ret, t)) |
3121 | 0 | return ret; |
3122 | | |
3123 | 0 | if (!handlerManager[d.type]->convert(&d, t, &ret, ok) && ok) |
3124 | 0 | *ok = false; |
3125 | 0 | return ret; |
3126 | 0 | } Unexecuted instantiation: qvariant.cpp:int qNumVariantToHelper<int>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, int const&) Unexecuted instantiation: qvariant.cpp:unsigned int qNumVariantToHelper<unsigned int>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, unsigned int const&) Unexecuted instantiation: qvariant.cpp:long long qNumVariantToHelper<long long>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, long long const&) Unexecuted instantiation: qvariant.cpp:unsigned long long qNumVariantToHelper<unsigned long long>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, unsigned long long const&) Unexecuted instantiation: qvariant.cpp:double qNumVariantToHelper<double>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, double const&) Unexecuted instantiation: qvariant.cpp:float qNumVariantToHelper<float>(QVariant::Private const&, (anonymous namespace)::HandlersManager const&, bool*, float const&) |
3127 | | |
3128 | | /*! |
3129 | | Returns the variant as an int if the variant has userType() |
3130 | | \l QMetaType::Int, \l QMetaType::Bool, \l QMetaType::QByteArray, |
3131 | | \l QMetaType::QChar, \l QMetaType::Double, \l QMetaType::LongLong, |
3132 | | \l QMetaType::QString, \l QMetaType::UInt, or \l QMetaType::ULongLong; |
3133 | | otherwise returns 0. |
3134 | | |
3135 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3136 | | converted to an int; otherwise \c{*}\a{ok} is set to false. |
3137 | | |
3138 | | \b{Warning:} If the value is convertible to a \l QMetaType::LongLong but is |
3139 | | too large to be represented in an int, the resulting arithmetic overflow |
3140 | | will not be reflected in \a ok. A simple workaround is to use |
3141 | | QString::toInt(). |
3142 | | |
3143 | | \sa canConvert(int targetTypeId), convert() |
3144 | | */ |
3145 | | int QVariant::toInt(bool *ok) const |
3146 | 0 | { |
3147 | 0 | return qNumVariantToHelper<int>(d, handlerManager, ok, d.data.i); |
3148 | 0 | } |
3149 | | |
3150 | | /*! |
3151 | | Returns the variant as an unsigned int if the variant has userType() |
3152 | | \l QMetaType::UInt, \l QMetaType::Bool, \l QMetaType::QByteArray, |
3153 | | \l QMetaType::QChar, \l QMetaType::Double, \l QMetaType::Int, |
3154 | | \l QMetaType::LongLong, \l QMetaType::QString, or \l QMetaType::ULongLong; |
3155 | | otherwise returns 0. |
3156 | | |
3157 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3158 | | converted to an unsigned int; otherwise \c{*}\a{ok} is set to false. |
3159 | | |
3160 | | \b{Warning:} If the value is convertible to a \l QMetaType::ULongLong but is |
3161 | | too large to be represented in an unsigned int, the resulting arithmetic |
3162 | | overflow will not be reflected in \a ok. A simple workaround is to use |
3163 | | QString::toUInt(). |
3164 | | |
3165 | | \sa canConvert(int targetTypeId), convert() |
3166 | | */ |
3167 | | uint QVariant::toUInt(bool *ok) const |
3168 | 0 | { |
3169 | 0 | return qNumVariantToHelper<uint>(d, handlerManager, ok, d.data.u); |
3170 | 0 | } |
3171 | | |
3172 | | /*! |
3173 | | Returns the variant as a long long int if the variant has userType() |
3174 | | \l QMetaType::LongLong, \l QMetaType::Bool, \l QMetaType::QByteArray, |
3175 | | \l QMetaType::QChar, \l QMetaType::Double, \l QMetaType::Int, |
3176 | | \l QMetaType::QString, \l QMetaType::UInt, or \l QMetaType::ULongLong; |
3177 | | otherwise returns 0. |
3178 | | |
3179 | | If \a ok is non-null: \c{*}\c{ok} is set to true if the value could be |
3180 | | converted to an int; otherwise \c{*}\c{ok} is set to false. |
3181 | | |
3182 | | \sa canConvert(int targetTypeId), convert() |
3183 | | */ |
3184 | | qlonglong QVariant::toLongLong(bool *ok) const |
3185 | 0 | { |
3186 | 0 | return qNumVariantToHelper<qlonglong>(d, handlerManager, ok, d.data.ll); |
3187 | 0 | } |
3188 | | |
3189 | | /*! |
3190 | | Returns the variant as an unsigned long long int if the |
3191 | | variant has type() \l QMetaType::ULongLong, \l QMetaType::Bool, |
3192 | | \l QMetaType::QByteArray, \l QMetaType::QChar, \l QMetaType::Double, |
3193 | | \l QMetaType::Int, \l QMetaType::LongLong, \l QMetaType::QString, or |
3194 | | \l QMetaType::UInt; otherwise returns 0. |
3195 | | |
3196 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3197 | | converted to an int; otherwise \c{*}\a{ok} is set to false. |
3198 | | |
3199 | | \sa canConvert(int targetTypeId), convert() |
3200 | | */ |
3201 | | qulonglong QVariant::toULongLong(bool *ok) const |
3202 | 0 | { |
3203 | 0 | return qNumVariantToHelper<qulonglong>(d, handlerManager, ok, d.data.ull); |
3204 | 0 | } |
3205 | | |
3206 | | /*! |
3207 | | Returns the variant as a bool if the variant has userType() Bool. |
3208 | | |
3209 | | Returns \c true if the variant has userType() \l QMetaType::Bool, |
3210 | | \l QMetaType::QChar, \l QMetaType::Double, \l QMetaType::Int, |
3211 | | \l QMetaType::LongLong, \l QMetaType::UInt, or \l QMetaType::ULongLong and |
3212 | | the value is non-zero, or if the variant has type \l QMetaType::QString or |
3213 | | \l QMetaType::QByteArray and its lower-case content is not one of the |
3214 | | following: empty, "0" or "false"; otherwise returns \c false. |
3215 | | |
3216 | | \sa canConvert(int targetTypeId), convert() |
3217 | | */ |
3218 | | bool QVariant::toBool() const |
3219 | 0 | { |
3220 | 0 | if (d.type == Bool) |
3221 | 0 | return d.data.b; |
3222 | | |
3223 | 0 | bool res = false; |
3224 | 0 | handlerManager[d.type]->convert(&d, Bool, &res, nullptr); |
3225 | |
|
3226 | 0 | return res; |
3227 | 0 | } |
3228 | | |
3229 | | /*! |
3230 | | Returns the variant as a double if the variant has userType() |
3231 | | \l QMetaType::Double, \l QMetaType::Float, \l QMetaType::Bool, |
3232 | | \l QMetaType::QByteArray, \l QMetaType::Int, \l QMetaType::LongLong, |
3233 | | \l QMetaType::QString, \l QMetaType::UInt, or \l QMetaType::ULongLong; |
3234 | | otherwise returns 0.0. |
3235 | | |
3236 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3237 | | converted to a double; otherwise \c{*}\a{ok} is set to false. |
3238 | | |
3239 | | \sa canConvert(int targetTypeId), convert() |
3240 | | */ |
3241 | | double QVariant::toDouble(bool *ok) const |
3242 | 0 | { |
3243 | 0 | return qNumVariantToHelper<double>(d, handlerManager, ok, d.data.d); |
3244 | 0 | } |
3245 | | |
3246 | | /*! |
3247 | | Returns the variant as a float if the variant has userType() |
3248 | | \l QMetaType::Double, \l QMetaType::Float, \l QMetaType::Bool, |
3249 | | \l QMetaType::QByteArray, \l QMetaType::Int, \l QMetaType::LongLong, |
3250 | | \l QMetaType::QString, \l QMetaType::UInt, or \l QMetaType::ULongLong; |
3251 | | otherwise returns 0.0. |
3252 | | |
3253 | | \since 4.6 |
3254 | | |
3255 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3256 | | converted to a double; otherwise \c{*}\a{ok} is set to false. |
3257 | | |
3258 | | \sa canConvert(int targetTypeId), convert() |
3259 | | */ |
3260 | | float QVariant::toFloat(bool *ok) const |
3261 | 0 | { |
3262 | 0 | return qNumVariantToHelper<float>(d, handlerManager, ok, d.data.f); |
3263 | 0 | } |
3264 | | |
3265 | | /*! |
3266 | | Returns the variant as a qreal if the variant has userType() |
3267 | | \l QMetaType::Double, \l QMetaType::Float, \l QMetaType::Bool, |
3268 | | \l QMetaType::QByteArray, \l QMetaType::Int, \l QMetaType::LongLong, |
3269 | | \l QMetaType::QString, \l QMetaType::UInt, or \l QMetaType::ULongLong; |
3270 | | otherwise returns 0.0. |
3271 | | |
3272 | | \since 4.6 |
3273 | | |
3274 | | If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be |
3275 | | converted to a double; otherwise \c{*}\a{ok} is set to false. |
3276 | | |
3277 | | \sa canConvert(int targetTypeId), convert() |
3278 | | */ |
3279 | | qreal QVariant::toReal(bool *ok) const |
3280 | 0 | { |
3281 | 0 | return qNumVariantToHelper<qreal>(d, handlerManager, ok, d.data.real); |
3282 | 0 | } |
3283 | | |
3284 | | /*! |
3285 | | Returns the variant as a QVariantList if the variant has userType() |
3286 | | \l QMetaType::QVariantList or \l QMetaType::QStringList; otherwise returns |
3287 | | an empty list. |
3288 | | |
3289 | | \sa canConvert(int targetTypeId), convert() |
3290 | | */ |
3291 | | QVariantList QVariant::toList() const |
3292 | 0 | { |
3293 | 0 | return qVariantToHelper<QVariantList>(d, handlerManager); |
3294 | 0 | } |
3295 | | |
3296 | | |
3297 | | static const quint32 qCanConvertMatrix[QMetaType::LastCoreType + 1] = |
3298 | | { |
3299 | | /*Invalid*/ 0, |
3300 | | |
3301 | | /*Bool*/ 1 << QMetaType::Double | 1 << QMetaType::Int | 1 << QMetaType::UInt |
3302 | | | 1 << QMetaType::LongLong | 1 << QMetaType::ULongLong | 1 << QMetaType::QByteArray |
3303 | | | 1 << QMetaType::QString | 1 << QMetaType::QChar, |
3304 | | |
3305 | | /*Int*/ 1 << QMetaType::UInt | 1 << QMetaType::QString | 1 << QMetaType::Double |
3306 | | | 1 << QMetaType::Bool | 1 << QMetaType::LongLong | 1 << QMetaType::ULongLong |
3307 | | | 1 << QMetaType::QChar | 1 << QMetaType::QByteArray | 1 << QMetaType::Int, |
3308 | | |
3309 | | /*UInt*/ 1 << QMetaType::Int | 1 << QMetaType::QString | 1 << QMetaType::Double |
3310 | | | 1 << QMetaType::Bool | 1 << QMetaType::LongLong | 1 << QMetaType::ULongLong |
3311 | | | 1 << QMetaType::QChar | 1 << QMetaType::QByteArray, |
3312 | | |
3313 | | /*LLong*/ 1 << QMetaType::Int | 1 << QMetaType::QString | 1 << QMetaType::Double |
3314 | | | 1 << QMetaType::Bool | 1 << QMetaType::UInt | 1 << QMetaType::ULongLong |
3315 | | | 1 << QMetaType::QChar | 1 << QMetaType::QByteArray, |
3316 | | |
3317 | | /*ULlong*/ 1 << QMetaType::Int | 1 << QMetaType::QString | 1 << QMetaType::Double |
3318 | | | 1 << QMetaType::Bool | 1 << QMetaType::UInt | 1 << QMetaType::LongLong |
3319 | | | 1 << QMetaType::QChar | 1 << QMetaType::QByteArray, |
3320 | | |
3321 | | /*double*/ 1 << QMetaType::Int | 1 << QMetaType::QString | 1 << QMetaType::ULongLong |
3322 | | | 1 << QMetaType::Bool | 1 << QMetaType::UInt | 1 << QMetaType::LongLong |
3323 | | | 1 << QMetaType::QByteArray, |
3324 | | |
3325 | | /*QChar*/ 1 << QMetaType::Int | 1 << QMetaType::UInt | 1 << QMetaType::LongLong |
3326 | | | 1 << QMetaType::ULongLong, |
3327 | | |
3328 | | /*QMap*/ 0, |
3329 | | |
3330 | | /*QList*/ 1 << QMetaType::QStringList, |
3331 | | |
3332 | | /*QString*/ 1 << QMetaType::QStringList | 1 << QMetaType::QByteArray | 1 << QMetaType::Int |
3333 | | | 1 << QMetaType::UInt | 1 << QMetaType::Bool | 1 << QMetaType::Double |
3334 | | | 1 << QMetaType::QDate | 1 << QMetaType::QTime | 1 << QMetaType::QDateTime |
3335 | | | 1 << QMetaType::LongLong | 1 << QMetaType::ULongLong | 1 << QMetaType::QChar |
3336 | | | 1 << QMetaType::QUrl | 1 << QMetaType::QUuid, |
3337 | | |
3338 | | /*QStringList*/ 1 << QMetaType::QVariantList | 1 << QMetaType::QString, |
3339 | | |
3340 | | /*QByteArray*/ 1 << QMetaType::QString | 1 << QMetaType::Int | 1 << QMetaType::UInt | 1 << QMetaType::Bool |
3341 | | | 1 << QMetaType::Double | 1 << QMetaType::LongLong | 1 << QMetaType::ULongLong |
3342 | | | 1 << QMetaType::QUuid, |
3343 | | |
3344 | | /*QBitArray*/ 0, |
3345 | | |
3346 | | /*QDate*/ 1 << QMetaType::QString | 1 << QMetaType::QDateTime, |
3347 | | |
3348 | | /*QTime*/ 1 << QMetaType::QString | 1 << QMetaType::QDateTime, |
3349 | | |
3350 | | /*QDateTime*/ 1 << QMetaType::QString | 1 << QMetaType::QDate, |
3351 | | |
3352 | | /*QUrl*/ 1 << QMetaType::QString, |
3353 | | |
3354 | | /*QLocale*/ 0, |
3355 | | |
3356 | | /*QRect*/ 1 << QMetaType::QRectF, |
3357 | | |
3358 | | /*QRectF*/ 1 << QMetaType::QRect, |
3359 | | |
3360 | | /*QSize*/ 1 << QMetaType::QSizeF, |
3361 | | |
3362 | | /*QSizeF*/ 1 << QMetaType::QSize, |
3363 | | |
3364 | | /*QLine*/ 1 << QMetaType::QLineF, |
3365 | | |
3366 | | /*QLineF*/ 1 << QMetaType::QLine, |
3367 | | |
3368 | | /*QPoint*/ 1 << QMetaType::QPointF, |
3369 | | |
3370 | | /*QPointF*/ 1 << QMetaType::QPoint, |
3371 | | |
3372 | | /*QRegExp*/ 0, |
3373 | | |
3374 | | /*QHash*/ 0, |
3375 | | |
3376 | | /*QEasingCurve*/ 0, |
3377 | | |
3378 | | /*QUuid*/ 1 << QMetaType::QString | 1 << QMetaType::QByteArray, |
3379 | | }; |
3380 | | static const size_t qCanConvertMatrixMaximumTargetType = 8 * sizeof(*qCanConvertMatrix); |
3381 | | |
3382 | | #ifndef QT_BOOTSTRAPPED |
3383 | | /* |
3384 | | Returns \c true if from inherits to. |
3385 | | */ |
3386 | | static bool canConvertMetaObject(const QMetaObject *from, const QMetaObject *to) |
3387 | 0 | { |
3388 | 0 | if (from && to == &QObject::staticMetaObject) |
3389 | 0 | return true; |
3390 | | |
3391 | 0 | while (from) { |
3392 | 0 | if (from == to) |
3393 | 0 | return true; |
3394 | 0 | from = from->superClass(); |
3395 | 0 | } |
3396 | | |
3397 | 0 | return false; |
3398 | 0 | } |
3399 | | #endif |
3400 | | |
3401 | | static bool canConvertMetaObject(int fromId, int toId, QObject *fromObject) |
3402 | 0 | { |
3403 | 0 | #ifndef QT_BOOTSTRAPPED |
3404 | 0 | QMetaType toType(toId); |
3405 | 0 | if ((QMetaType::typeFlags(fromId) & QMetaType::PointerToQObject) && (toType.flags() & QMetaType::PointerToQObject)) { |
3406 | 0 | if (!fromObject) |
3407 | 0 | return true; |
3408 | 0 | return canConvertMetaObject(fromObject->metaObject(), toType.metaObject()); |
3409 | 0 | } |
3410 | | #else |
3411 | | Q_UNUSED(fromId); |
3412 | | Q_UNUSED(toId); |
3413 | | Q_UNUSED(fromObject); |
3414 | | #endif |
3415 | 0 | return false; |
3416 | 0 | } |
3417 | | |
3418 | | |
3419 | | /*! |
3420 | | Returns \c true if the variant's type can be cast to the requested |
3421 | | type, \a targetTypeId. Such casting is done automatically when calling the |
3422 | | toInt(), toBool(), ... methods. |
3423 | | |
3424 | | The following casts are done automatically: |
3425 | | |
3426 | | \table |
3427 | | \header \li Type \li Automatically Cast To |
3428 | | \row \li \l QMetaType::Bool \li \l QMetaType::QChar, \l QMetaType::Double, |
3429 | | \l QMetaType::Int, \l QMetaType::LongLong, \l QMetaType::QString, |
3430 | | \l QMetaType::UInt, \l QMetaType::ULongLong |
3431 | | \row \li \l QMetaType::QByteArray \li \l QMetaType::Double, |
3432 | | \l QMetaType::Int, \l QMetaType::LongLong, \l QMetaType::QString, |
3433 | | \l QMetaType::UInt, \l QMetaType::ULongLong, \l QMetaType::QUuid |
3434 | | \row \li \l QMetaType::QChar \li \l QMetaType::Bool, \l QMetaType::Int, |
3435 | | \l QMetaType::UInt, \l QMetaType::LongLong, \l QMetaType::ULongLong |
3436 | | \row \li \l QMetaType::QColor \li \l QMetaType::QString |
3437 | | \row \li \l QMetaType::QDate \li \l QMetaType::QDateTime, |
3438 | | \l QMetaType::QString |
3439 | | \row \li \l QMetaType::QDateTime \li \l QMetaType::QDate, |
3440 | | \l QMetaType::QString, \l QMetaType::QTime |
3441 | | \row \li \l QMetaType::Double \li \l QMetaType::Bool, \l QMetaType::Int, |
3442 | | \l QMetaType::LongLong, \l QMetaType::QString, \l QMetaType::UInt, |
3443 | | \l QMetaType::ULongLong |
3444 | | \row \li \l QMetaType::QFont \li \l QMetaType::QString |
3445 | | \row \li \l QMetaType::Int \li \l QMetaType::Bool, \l QMetaType::QChar, |
3446 | | \l QMetaType::Double, \l QMetaType::LongLong, \l QMetaType::QString, |
3447 | | \l QMetaType::UInt, \l QMetaType::ULongLong |
3448 | | \row \li \l QMetaType::QKeySequence \li \l QMetaType::Int, |
3449 | | \l QMetaType::QString |
3450 | | \row \li \l QMetaType::QVariantList \li \l QMetaType::QStringList (if the |
3451 | | list's items can be converted to QStrings) |
3452 | | \row \li \l QMetaType::LongLong \li \l QMetaType::Bool, |
3453 | | \l QMetaType::QByteArray, \l QMetaType::QChar, \l QMetaType::Double, |
3454 | | \l QMetaType::Int, \l QMetaType::QString, \l QMetaType::UInt, |
3455 | | \l QMetaType::ULongLong |
3456 | | \row \li \l QMetaType::QPoint \li QMetaType::QPointF |
3457 | | \row \li \l QMetaType::QRect \li QMetaType::QRectF |
3458 | | \row \li \l QMetaType::QString \li \l QMetaType::Bool, |
3459 | | \l QMetaType::QByteArray, \l QMetaType::QChar, \l QMetaType::QColor, |
3460 | | \l QMetaType::QDate, \l QMetaType::QDateTime, \l QMetaType::Double, |
3461 | | \l QMetaType::QFont, \l QMetaType::Int, \l QMetaType::QKeySequence, |
3462 | | \l QMetaType::LongLong, \l QMetaType::QStringList, \l QMetaType::QTime, |
3463 | | \l QMetaType::UInt, \l QMetaType::ULongLong, \l QMetaType::QUuid |
3464 | | \row \li \l QMetaType::QStringList \li \l QMetaType::QVariantList, |
3465 | | \l QMetaType::QString (if the list contains exactly one item) |
3466 | | \row \li \l QMetaType::QTime \li \l QMetaType::QString |
3467 | | \row \li \l QMetaType::UInt \li \l QMetaType::Bool, \l QMetaType::QChar, |
3468 | | \l QMetaType::Double, \l QMetaType::Int, \l QMetaType::LongLong, |
3469 | | \l QMetaType::QString, \l QMetaType::ULongLong |
3470 | | \row \li \l QMetaType::ULongLong \li \l QMetaType::Bool, |
3471 | | \l QMetaType::QChar, \l QMetaType::Double, \l QMetaType::Int, |
3472 | | \l QMetaType::LongLong, \l QMetaType::QString, \l QMetaType::UInt |
3473 | | \row \li \l QMetaType::QUuid \li \l QMetaType::QByteArray, \l QMetaType::QString |
3474 | | \endtable |
3475 | | |
3476 | | A QVariant containing a pointer to a type derived from QObject will also return true for this |
3477 | | function if a qobject_cast to the type described by \a targetTypeId would succeed. Note that |
3478 | | this only works for QObject subclasses which use the Q_OBJECT macro. |
3479 | | |
3480 | | A QVariant containing a sequential container will also return true for this |
3481 | | function if the \a targetTypeId is QVariantList. It is possible to iterate over |
3482 | | the contents of the container without extracting it as a (copied) QVariantList: |
3483 | | |
3484 | | \snippet code/src_corelib_kernel_qvariant.cpp 9 |
3485 | | |
3486 | | This requires that the value_type of the container is itself a metatype. |
3487 | | |
3488 | | Similarly, a QVariant containing a sequential container will also return true for this |
3489 | | function the \a targetTypeId is QVariantHash or QVariantMap. It is possible to iterate over |
3490 | | the contents of the container without extracting it as a (copied) QVariantHash or QVariantMap: |
3491 | | |
3492 | | \snippet code/src_corelib_kernel_qvariant.cpp 10 |
3493 | | |
3494 | | \sa convert(), QSequentialIterable, Q_DECLARE_SEQUENTIAL_CONTAINER_METATYPE(), QAssociativeIterable, |
3495 | | Q_DECLARE_ASSOCIATIVE_CONTAINER_METATYPE() |
3496 | | */ |
3497 | | bool QVariant::canConvert(int targetTypeId) const |
3498 | 0 | { |
3499 | 0 | if (d.type == targetTypeId) |
3500 | 0 | return true; |
3501 | | |
3502 | 0 | #if QT_CONFIG(itemmodel) |
3503 | 0 | if ((targetTypeId == QMetaType::QModelIndex && d.type == QMetaType::QPersistentModelIndex) |
3504 | 0 | || (targetTypeId == QMetaType::QPersistentModelIndex && d.type == QMetaType::QModelIndex)) |
3505 | 0 | return true; |
3506 | 0 | #endif |
3507 | | |
3508 | 0 | if (targetTypeId == QMetaType::QVariantList |
3509 | 0 | && (d.type == QMetaType::QVariantList |
3510 | 0 | || d.type == QMetaType::QStringList |
3511 | 0 | || d.type == QMetaType::QByteArrayList |
3512 | 0 | || QMetaType::hasRegisteredConverterFunction(d.type, |
3513 | 0 | qMetaTypeId<QtMetaTypePrivate::QSequentialIterableImpl>()))) { |
3514 | 0 | return true; |
3515 | 0 | } |
3516 | | |
3517 | 0 | if ((targetTypeId == QMetaType::QVariantHash || targetTypeId == QMetaType::QVariantMap) |
3518 | 0 | && (d.type == QMetaType::QVariantMap |
3519 | 0 | || d.type == QMetaType::QVariantHash |
3520 | 0 | || QMetaType::hasRegisteredConverterFunction(d.type, |
3521 | 0 | qMetaTypeId<QtMetaTypePrivate::QAssociativeIterableImpl>()))) { |
3522 | 0 | return true; |
3523 | 0 | } |
3524 | | |
3525 | 0 | if (targetTypeId == qMetaTypeId<QPair<QVariant, QVariant> >() && |
3526 | 0 | QMetaType::hasRegisteredConverterFunction(d.type, |
3527 | 0 | qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>())) { |
3528 | 0 | return true; |
3529 | 0 | } |
3530 | | |
3531 | 0 | if ((d.type >= QMetaType::User || targetTypeId >= QMetaType::User) |
3532 | 0 | && QMetaType::hasRegisteredConverterFunction(d.type, targetTypeId)) { |
3533 | 0 | return true; |
3534 | 0 | } |
3535 | | |
3536 | | // TODO Reimplement this function, currently it works but it is a historical mess. |
3537 | 0 | uint currentType = d.type; |
3538 | 0 | if (currentType == QMetaType::SChar || currentType == QMetaType::Char) |
3539 | 0 | currentType = QMetaType::UInt; |
3540 | 0 | if (targetTypeId == QMetaType::SChar || currentType == QMetaType::Char) |
3541 | 0 | targetTypeId = QMetaType::UInt; |
3542 | 0 | if (currentType == QMetaType::Short || currentType == QMetaType::UShort) |
3543 | 0 | currentType = QMetaType::Int; |
3544 | 0 | if (targetTypeId == QMetaType::Short || currentType == QMetaType::UShort) |
3545 | 0 | targetTypeId = QMetaType::Int; |
3546 | 0 | if (currentType == QMetaType::Float) |
3547 | 0 | currentType = QMetaType::Double; |
3548 | 0 | if (targetTypeId == QMetaType::Float) |
3549 | 0 | targetTypeId = QMetaType::Double; |
3550 | |
|
3551 | 0 | if (currentType == uint(targetTypeId)) |
3552 | 0 | return true; |
3553 | | |
3554 | 0 | if (targetTypeId < 0) |
3555 | 0 | return false; |
3556 | 0 | if (targetTypeId >= QMetaType::User) { |
3557 | 0 | if (QMetaType::typeFlags(targetTypeId) & QMetaType::IsEnumeration) { |
3558 | 0 | targetTypeId = QMetaType::Int; |
3559 | 0 | } else { |
3560 | 0 | return canConvertMetaObject(currentType, targetTypeId, d.data.o); |
3561 | 0 | } |
3562 | 0 | } |
3563 | | |
3564 | 0 | if (currentType == QMetaType::QJsonValue || targetTypeId == QMetaType::QJsonValue) { |
3565 | 0 | switch (currentType == QMetaType::QJsonValue ? targetTypeId : currentType) { |
3566 | 0 | case QMetaType::Nullptr: |
3567 | 0 | case QMetaType::QString: |
3568 | 0 | case QMetaType::Bool: |
3569 | 0 | case QMetaType::Int: |
3570 | 0 | case QMetaType::UInt: |
3571 | 0 | case QMetaType::Double: |
3572 | 0 | case QMetaType::Float: |
3573 | 0 | case QMetaType::ULong: |
3574 | 0 | case QMetaType::Long: |
3575 | 0 | case QMetaType::LongLong: |
3576 | 0 | case QMetaType::ULongLong: |
3577 | 0 | case QMetaType::UShort: |
3578 | 0 | case QMetaType::UChar: |
3579 | 0 | case QMetaType::Char: |
3580 | 0 | case QMetaType::SChar: |
3581 | 0 | case QMetaType::Short: |
3582 | 0 | case QMetaType::QVariantList: |
3583 | 0 | case QMetaType::QVariantMap: |
3584 | 0 | case QMetaType::QVariantHash: |
3585 | 0 | case QMetaType::QCborValue: |
3586 | 0 | case QMetaType::QCborArray: |
3587 | 0 | case QMetaType::QCborMap: |
3588 | 0 | return true; |
3589 | 0 | default: |
3590 | 0 | return false; |
3591 | 0 | } |
3592 | 0 | } |
3593 | 0 | if (currentType == QMetaType::QJsonArray) |
3594 | 0 | return targetTypeId == QMetaType::QVariantList || targetTypeId == QMetaType::QCborValue |
3595 | 0 | || targetTypeId == QMetaType::QCborArray; |
3596 | 0 | if (currentType == QMetaType::QJsonObject) |
3597 | 0 | return targetTypeId == QMetaType::QVariantMap || targetTypeId == QMetaType::QVariantHash |
3598 | 0 | || targetTypeId == QMetaType::QCborValue || targetTypeId == QMetaType::QCborMap; |
3599 | | |
3600 | 0 | if (currentType == QMetaType::QCborValue || targetTypeId == QMetaType::QCborValue) { |
3601 | 0 | switch (currentType == QMetaType::QCborValue ? targetTypeId : currentType) { |
3602 | 0 | case QMetaType::UnknownType: |
3603 | 0 | case QMetaType::Nullptr: |
3604 | 0 | case QMetaType::Bool: |
3605 | 0 | case QMetaType::Int: |
3606 | 0 | case QMetaType::UInt: |
3607 | 0 | case QMetaType::Double: |
3608 | 0 | case QMetaType::Float: |
3609 | 0 | case QMetaType::ULong: |
3610 | 0 | case QMetaType::Long: |
3611 | 0 | case QMetaType::LongLong: |
3612 | 0 | case QMetaType::ULongLong: |
3613 | 0 | case QMetaType::UShort: |
3614 | 0 | case QMetaType::UChar: |
3615 | 0 | case QMetaType::Char: |
3616 | 0 | case QMetaType::SChar: |
3617 | 0 | case QMetaType::Short: |
3618 | 0 | case QMetaType::QString: |
3619 | 0 | case QMetaType::QByteArray: |
3620 | 0 | case QMetaType::QDateTime: |
3621 | 0 | case QMetaType::QUrl: |
3622 | 0 | case QMetaType::QRegularExpression: |
3623 | 0 | case QMetaType::QUuid: |
3624 | 0 | case QMetaType::QVariantList: |
3625 | 0 | case QMetaType::QVariantMap: |
3626 | 0 | case QMetaType::QVariantHash: |
3627 | 0 | case QMetaType::QJsonValue: |
3628 | 0 | case QMetaType::QJsonArray: |
3629 | 0 | case QMetaType::QJsonObject: |
3630 | 0 | case QMetaType::QJsonDocument: |
3631 | 0 | case QMetaType::QCborArray: |
3632 | 0 | case QMetaType::QCborMap: |
3633 | 0 | case QMetaType::QCborSimpleType: |
3634 | 0 | return true; |
3635 | 0 | default: |
3636 | 0 | return false; |
3637 | 0 | } |
3638 | 0 | } |
3639 | 0 | if (currentType == QMetaType::QCborArray) |
3640 | 0 | return targetTypeId == QMetaType::QVariantList || targetTypeId == QMetaType::QCborValue |
3641 | 0 | || targetTypeId == QMetaType::QJsonArray; |
3642 | 0 | if (currentType == QMetaType::QCborMap) |
3643 | 0 | return targetTypeId == QMetaType::QVariantMap || targetTypeId == QMetaType::QVariantHash |
3644 | 0 | || targetTypeId == QMetaType::QCborValue || targetTypeId == QMetaType::QJsonObject; |
3645 | | |
3646 | | // FIXME It should be LastCoreType intead of Uuid |
3647 | 0 | if (currentType > int(QMetaType::QUuid) || targetTypeId > int(QMetaType::QUuid)) { |
3648 | 0 | switch (uint(targetTypeId)) { |
3649 | 0 | case QVariant::Int: |
3650 | 0 | if (currentType == QVariant::KeySequence) |
3651 | 0 | return true; |
3652 | 0 | Q_FALLTHROUGH(); |
3653 | 0 | case QVariant::UInt: |
3654 | 0 | case QVariant::LongLong: |
3655 | 0 | case QVariant::ULongLong: |
3656 | 0 | return currentType == QMetaType::ULong |
3657 | 0 | || currentType == QMetaType::Long |
3658 | 0 | || currentType == QMetaType::UShort |
3659 | 0 | || currentType == QMetaType::UChar |
3660 | 0 | || currentType == QMetaType::Char |
3661 | 0 | || currentType == QMetaType::SChar |
3662 | 0 | || currentType == QMetaType::Short |
3663 | 0 | || QMetaType::typeFlags(currentType) & QMetaType::IsEnumeration; |
3664 | 0 | case QVariant::Image: |
3665 | 0 | return currentType == QVariant::Pixmap || currentType == QVariant::Bitmap; |
3666 | 0 | case QVariant::Pixmap: |
3667 | 0 | return currentType == QVariant::Image || currentType == QVariant::Bitmap |
3668 | 0 | || currentType == QVariant::Brush; |
3669 | 0 | case QVariant::Bitmap: |
3670 | 0 | return currentType == QVariant::Pixmap || currentType == QVariant::Image; |
3671 | 0 | case QVariant::ByteArray: |
3672 | 0 | return currentType == QVariant::Color || currentType == QMetaType::Nullptr |
3673 | 0 | || ((QMetaType::typeFlags(currentType) & QMetaType::IsEnumeration) && QMetaType::metaObjectForType(currentType)); |
3674 | 0 | case QVariant::String: |
3675 | 0 | return currentType == QVariant::KeySequence || currentType == QVariant::Font |
3676 | 0 | || currentType == QVariant::Color || currentType == QMetaType::Nullptr |
3677 | 0 | || ((QMetaType::typeFlags(currentType) & QMetaType::IsEnumeration) && QMetaType::metaObjectForType(currentType)); |
3678 | 0 | case QVariant::KeySequence: |
3679 | 0 | return currentType == QVariant::String || currentType == QVariant::Int; |
3680 | 0 | case QVariant::Font: |
3681 | 0 | return currentType == QVariant::String; |
3682 | 0 | case QVariant::Color: |
3683 | 0 | return currentType == QVariant::String || currentType == QVariant::ByteArray |
3684 | 0 | || currentType == QVariant::Brush; |
3685 | 0 | case QVariant::Brush: |
3686 | 0 | return currentType == QVariant::Color || currentType == QVariant::Pixmap; |
3687 | 0 | case QMetaType::Long: |
3688 | 0 | case QMetaType::Char: |
3689 | 0 | case QMetaType::SChar: |
3690 | 0 | case QMetaType::UChar: |
3691 | 0 | case QMetaType::ULong: |
3692 | 0 | case QMetaType::Short: |
3693 | 0 | case QMetaType::UShort: |
3694 | 0 | return currentType == QVariant::Int |
3695 | 0 | || (currentType < qCanConvertMatrixMaximumTargetType |
3696 | 0 | && qCanConvertMatrix[QVariant::Int] & (1U << currentType)) |
3697 | 0 | || QMetaType::typeFlags(currentType) & QMetaType::IsEnumeration; |
3698 | 0 | case QMetaType::QObjectStar: |
3699 | 0 | return canConvertMetaObject(currentType, targetTypeId, d.data.o); |
3700 | 0 | default: |
3701 | 0 | return false; |
3702 | 0 | } |
3703 | 0 | } |
3704 | | |
3705 | 0 | if (targetTypeId == String && currentType == StringList) |
3706 | 0 | return v_cast<QStringList>(&d)->count() == 1; |
3707 | 0 | return currentType < qCanConvertMatrixMaximumTargetType |
3708 | 0 | && qCanConvertMatrix[targetTypeId] & (1U << currentType); |
3709 | 0 | } |
3710 | | |
3711 | | /*! |
3712 | | Casts the variant to the requested type, \a targetTypeId. If the cast cannot be |
3713 | | done, the variant is still changed to the requested type, but is left in a cleared |
3714 | | null state similar to that constructed by QVariant(Type). |
3715 | | |
3716 | | Returns \c true if the current type of the variant was successfully cast; |
3717 | | otherwise returns \c false. |
3718 | | |
3719 | | A QVariant containing a pointer to a type derived from QObject will also convert |
3720 | | and return true for this function if a qobject_cast to the type described |
3721 | | by \a targetTypeId would succeed. Note that this only works for QObject subclasses |
3722 | | which use the Q_OBJECT macro. |
3723 | | |
3724 | | \note converting QVariants that are null due to not being initialized or having |
3725 | | failed a previous conversion will always fail, changing the type, remaining null, |
3726 | | and returning \c false. |
3727 | | |
3728 | | \sa canConvert(int targetTypeId), clear() |
3729 | | */ |
3730 | | |
3731 | | bool QVariant::convert(int targetTypeId) |
3732 | 0 | { |
3733 | 0 | if (d.type == uint(targetTypeId)) |
3734 | 0 | return true; |
3735 | | |
3736 | 0 | QVariant oldValue = *this; |
3737 | |
|
3738 | 0 | clear(); |
3739 | 0 | if (!oldValue.canConvert(targetTypeId)) |
3740 | 0 | return false; |
3741 | | |
3742 | 0 | create(targetTypeId, nullptr); |
3743 | | // Fail if the value is not initialized or was forced null by a previous failed convert. |
3744 | 0 | if (oldValue.d.is_null && oldValue.d.type != QMetaType::Nullptr) |
3745 | 0 | return false; |
3746 | | |
3747 | 0 | if ((QMetaType::typeFlags(oldValue.userType()) & QMetaType::PointerToQObject) && (QMetaType::typeFlags(targetTypeId) & QMetaType::PointerToQObject)) { |
3748 | 0 | create(targetTypeId, &oldValue.d.data.o); |
3749 | 0 | return true; |
3750 | 0 | } |
3751 | | |
3752 | 0 | bool isOk = true; |
3753 | 0 | int converterType = std::max(oldValue.userType(), targetTypeId); |
3754 | 0 | if (!handlerManager[converterType]->convert(&oldValue.d, targetTypeId, data(), &isOk)) |
3755 | 0 | isOk = false; |
3756 | 0 | d.is_null = !isOk; |
3757 | 0 | return isOk; |
3758 | 0 | } |
3759 | | |
3760 | | /*! |
3761 | | \fn bool QVariant::convert(const int type, void *ptr) const |
3762 | | \internal |
3763 | | Created for qvariant_cast() usage |
3764 | | */ |
3765 | | bool QVariant::convert(const int type, void *ptr) const |
3766 | 0 | { |
3767 | 0 | return handlerManager[type]->convert(&d, type, ptr, nullptr); |
3768 | 0 | } |
3769 | | |
3770 | | |
3771 | | /*! |
3772 | | \fn bool operator==(const QVariant &v1, const QVariant &v2) |
3773 | | |
3774 | | \relates QVariant |
3775 | | |
3776 | | Returns \c true if \a v1 and \a v2 are equal; otherwise returns \c false. |
3777 | | |
3778 | | If \a v1 and \a v2 have the same \l{QVariant::}{type()}, the |
3779 | | type's equality operator is used for comparison. If not, it is |
3780 | | attempted to \l{QVariant::}{convert()} \a v2 to the same type as |
3781 | | \a v1. See \l{QVariant::}{canConvert()} for a list of possible |
3782 | | conversions. |
3783 | | |
3784 | | The result of the function is not affected by the result of QVariant::isNull, |
3785 | | which means that two values can be equal even if one of them is null and |
3786 | | another is not. |
3787 | | |
3788 | | \warning To make this function work with a custom type registered with |
3789 | | qRegisterMetaType(), its comparison operator must be registered using |
3790 | | QMetaType::registerComparators(). |
3791 | | */ |
3792 | | /*! |
3793 | | \fn bool operator!=(const QVariant &v1, const QVariant &v2) |
3794 | | |
3795 | | \relates QVariant |
3796 | | |
3797 | | Returns \c false if \a v1 and \a v2 are equal; otherwise returns \c true. |
3798 | | |
3799 | | \warning To make this function work with a custom type registered with |
3800 | | qRegisterMetaType(), its comparison operator must be registered using |
3801 | | QMetaType::registerComparators(). |
3802 | | */ |
3803 | | |
3804 | | /*! \fn bool QVariant::operator==(const QVariant &v) const |
3805 | | |
3806 | | Compares this QVariant with \a v and returns \c true if they are |
3807 | | equal; otherwise returns \c false. |
3808 | | |
3809 | | QVariant uses the equality operator of the type() it contains to |
3810 | | check for equality. QVariant will try to convert() \a v if its |
3811 | | type is not the same as this variant's type. See canConvert() for |
3812 | | a list of possible conversions. |
3813 | | |
3814 | | \warning To make this function work with a custom type registered with |
3815 | | qRegisterMetaType(), its comparison operator must be registered using |
3816 | | QMetaType::registerComparators(). |
3817 | | */ |
3818 | | |
3819 | | /*! |
3820 | | \fn bool QVariant::operator!=(const QVariant &v) const |
3821 | | |
3822 | | Compares this QVariant with \a v and returns \c true if they are not |
3823 | | equal; otherwise returns \c false. |
3824 | | |
3825 | | \warning To make this function work with a custom type registered with |
3826 | | qRegisterMetaType(), its comparison operator must be registered using |
3827 | | QMetaType::registerComparators(). |
3828 | | */ |
3829 | | |
3830 | | /*! |
3831 | | \fn bool QVariant::operator<(const QVariant &v) const |
3832 | | \obsolete |
3833 | | |
3834 | | Compares this QVariant with \a v and returns \c true if this is less than \a v. |
3835 | | |
3836 | | \note Comparability might not be availabe for the type stored in this QVariant |
3837 | | or in \a v. |
3838 | | |
3839 | | \warning To make this function work with a custom type registered with |
3840 | | qRegisterMetaType(), its comparison operator must be registered using |
3841 | | QMetaType::registerComparators(). |
3842 | | |
3843 | | This operator is deprecated as it cannot establish a total order required |
3844 | | for most use of this operator, which is the reason you cannot use QVariant |
3845 | | as the key of a QMap. |
3846 | | */ |
3847 | | |
3848 | | /*! |
3849 | | \fn bool QVariant::operator<=(const QVariant &v) const |
3850 | | \obsolete |
3851 | | |
3852 | | Compares this QVariant with \a v and returns \c true if this is less or equal than \a v. |
3853 | | |
3854 | | \note Comparability might not be available for the type stored in this QVariant |
3855 | | or in \a v. |
3856 | | |
3857 | | \warning To make this function work with a custom type registered with |
3858 | | qRegisterMetaType(), its comparison operator must be registered using |
3859 | | QMetaType::registerComparators(). |
3860 | | |
3861 | | This operator is deprecated as it cannot establish a total order. |
3862 | | */ |
3863 | | |
3864 | | /*! |
3865 | | \fn bool QVariant::operator>(const QVariant &v) const |
3866 | | \obsolete |
3867 | | |
3868 | | Compares this QVariant with \a v and returns \c true if this is larger than \a v. |
3869 | | |
3870 | | \note Comparability might not be available for the type stored in this QVariant |
3871 | | or in \a v. |
3872 | | |
3873 | | \warning To make this function work with a custom type registered with |
3874 | | qRegisterMetaType(), its comparison operator must be registered using |
3875 | | QMetaType::registerComparators(). |
3876 | | |
3877 | | This operator is deprecated as it cannot establish a total order. |
3878 | | */ |
3879 | | |
3880 | | /*! |
3881 | | \fn bool QVariant::operator>=(const QVariant &v) const |
3882 | | \obsolete |
3883 | | |
3884 | | Compares this QVariant with \a v and returns \c true if this is larger or equal than \a v. |
3885 | | |
3886 | | \note Comparability might not be available for the type stored in this QVariant |
3887 | | or in \a v. |
3888 | | |
3889 | | \warning To make this function work with a custom type registered with |
3890 | | qRegisterMetaType(), its comparison operator must be registered using |
3891 | | QMetaType::registerComparators(). |
3892 | | |
3893 | | This operator is deprecated as it cannot establish a total order. |
3894 | | */ |
3895 | | |
3896 | | static bool qIsNumericType(uint tp) |
3897 | 0 | { |
3898 | 0 | static const qulonglong numericTypeBits = |
3899 | 0 | Q_UINT64_C(1) << QMetaType::Bool | |
3900 | 0 | Q_UINT64_C(1) << QMetaType::Double | |
3901 | 0 | Q_UINT64_C(1) << QMetaType::Float | |
3902 | 0 | Q_UINT64_C(1) << QMetaType::Char | |
3903 | 0 | Q_UINT64_C(1) << QMetaType::SChar | |
3904 | 0 | Q_UINT64_C(1) << QMetaType::UChar | |
3905 | 0 | Q_UINT64_C(1) << QMetaType::Short | |
3906 | 0 | Q_UINT64_C(1) << QMetaType::UShort | |
3907 | 0 | Q_UINT64_C(1) << QMetaType::Int | |
3908 | 0 | Q_UINT64_C(1) << QMetaType::UInt | |
3909 | 0 | Q_UINT64_C(1) << QMetaType::Long | |
3910 | 0 | Q_UINT64_C(1) << QMetaType::ULong | |
3911 | 0 | Q_UINT64_C(1) << QMetaType::LongLong | |
3912 | 0 | Q_UINT64_C(1) << QMetaType::ULongLong; |
3913 | 0 | return tp < (CHAR_BIT * sizeof numericTypeBits) ? numericTypeBits & (Q_UINT64_C(1) << tp) : false; |
3914 | 0 | } |
3915 | | |
3916 | | static bool qIsFloatingPoint(uint tp) |
3917 | 0 | { |
3918 | 0 | return tp == QMetaType::Double || tp == QMetaType::Float; |
3919 | 0 | } |
3920 | | |
3921 | | static int normalizeLowerRanks(uint tp) |
3922 | 0 | { |
3923 | 0 | static const qulonglong numericTypeBits = |
3924 | 0 | Q_UINT64_C(1) << QMetaType::Bool | |
3925 | 0 | Q_UINT64_C(1) << QMetaType::Char | |
3926 | 0 | Q_UINT64_C(1) << QMetaType::SChar | |
3927 | 0 | Q_UINT64_C(1) << QMetaType::UChar | |
3928 | 0 | Q_UINT64_C(1) << QMetaType::Short | |
3929 | 0 | Q_UINT64_C(1) << QMetaType::UShort; |
3930 | 0 | return numericTypeBits & (Q_UINT64_C(1) << tp) ? uint(QMetaType::Int) : tp; |
3931 | 0 | } |
3932 | | |
3933 | | static int normalizeLong(uint tp) |
3934 | 0 | { |
3935 | 0 | const uint IntType = sizeof(long) == sizeof(int) ? QMetaType::Int : QMetaType::LongLong; |
3936 | 0 | const uint UIntType = sizeof(ulong) == sizeof(uint) ? QMetaType::UInt : QMetaType::ULongLong; |
3937 | 0 | return tp == QMetaType::Long ? IntType : |
3938 | 0 | tp == QMetaType::ULong ? UIntType : tp; |
3939 | 0 | } |
3940 | | |
3941 | | static int numericTypePromotion(uint t1, uint t2) |
3942 | 0 | { |
3943 | 0 | Q_ASSERT(qIsNumericType(t1)); |
3944 | 0 | Q_ASSERT(qIsNumericType(t2)); |
3945 | | |
3946 | | // C++ integral ranks: (4.13 Integer conversion rank [conv.rank]) |
3947 | | // bool < signed char < short < int < long < long long |
3948 | | // unsigneds have the same rank as their signed counterparts |
3949 | | // C++ integral promotion rules (4.5 Integral Promotions [conv.prom]) |
3950 | | // - any type with rank less than int can be converted to int or unsigned int |
3951 | | // 5 Expressions [expr] paragraph 9: |
3952 | | // - if either operand is double, the other shall be converted to double |
3953 | | // - " " float, " " " float |
3954 | | // - if both operands have the same type, no further conversion is needed. |
3955 | | // - if both are signed or if both are unsigned, convert to the one with highest rank |
3956 | | // - if the unsigned has higher or same rank, convert the signed to the unsigned one |
3957 | | // - if the signed can represent all values of the unsigned, convert to the signed |
3958 | | // - otherwise, convert to the unsigned corresponding to the rank of the signed |
3959 | | |
3960 | | // floating point: we deviate from the C++ standard by always using qreal |
3961 | 0 | if (qIsFloatingPoint(t1) || qIsFloatingPoint(t2)) |
3962 | 0 | return QMetaType::QReal; |
3963 | | |
3964 | | // integral rules: |
3965 | | // for all platforms we support, int can always hold the values of lower-ranked types |
3966 | 0 | t1 = normalizeLowerRanks(t1); |
3967 | 0 | t2 = normalizeLowerRanks(t2); |
3968 | | |
3969 | | // normalize long / ulong: in all platforms we run, they're either the same as int or as long long |
3970 | 0 | t1 = normalizeLong(t1); |
3971 | 0 | t2 = normalizeLong(t2); |
3972 | | |
3973 | | // implement the other rules |
3974 | | // the four possibilities are Int, UInt, LongLong and ULongLong |
3975 | | // if any of the two is ULongLong, then it wins (highest rank, unsigned) |
3976 | | // otherwise, if one of the two is LongLong, then the other is either LongLong too or lower-ranked |
3977 | | // otherwise, if one of the two is UInt, then the other is either UInt too or Int |
3978 | 0 | if (t1 == QMetaType::ULongLong || t2 == QMetaType::ULongLong) |
3979 | 0 | return QMetaType::ULongLong; |
3980 | 0 | if (t1 == QMetaType::LongLong || t2 == QMetaType::LongLong) |
3981 | 0 | return QMetaType::LongLong; |
3982 | 0 | if (t1 == QMetaType::UInt || t2 == QMetaType::UInt) |
3983 | 0 | return QMetaType::UInt; |
3984 | 0 | return QMetaType::Int; |
3985 | 0 | } |
3986 | | |
3987 | | static int integralCompare(uint promotedType, const QVariant::Private *d1, const QVariant::Private *d2) |
3988 | 0 | { |
3989 | | // use toLongLong to retrieve the data, it gets us all the bits |
3990 | 0 | bool ok; |
3991 | 0 | qlonglong l1 = qConvertToNumber(d1, &ok); |
3992 | 0 | Q_ASSERT(ok); |
3993 | |
|
3994 | 0 | qlonglong l2 = qConvertToNumber(d2, &ok); |
3995 | 0 | Q_ASSERT(ok); |
3996 | |
|
3997 | 0 | if (promotedType == QMetaType::Int) |
3998 | 0 | return int(l1) < int(l2) ? -1 : int(l1) == int(l2) ? 0 : 1; |
3999 | 0 | if (promotedType == QMetaType::UInt) |
4000 | 0 | return uint(l1) < uint(l2) ? -1 : uint(l1) == uint(l2) ? 0 : 1; |
4001 | 0 | if (promotedType == QMetaType::LongLong) |
4002 | 0 | return l1 < l2 ? -1 : l1 == l2 ? 0 : 1; |
4003 | 0 | if (promotedType == QMetaType::ULongLong) |
4004 | 0 | return qulonglong(l1) < qulonglong(l2) ? -1 : qulonglong(l1) == qulonglong(l2) ? 0 : 1; |
4005 | | |
4006 | 0 | Q_UNREACHABLE(); |
4007 | 0 | return 0; |
4008 | 0 | } |
4009 | | |
4010 | | static int numericCompare(const QVariant::Private *d1, const QVariant::Private *d2) |
4011 | 0 | { |
4012 | 0 | uint promotedType = numericTypePromotion(d1->type, d2->type); |
4013 | 0 | if (promotedType != QMetaType::QReal) |
4014 | 0 | return integralCompare(promotedType, d1, d2); |
4015 | | |
4016 | | // qreal comparisons |
4017 | 0 | bool ok; |
4018 | 0 | qreal r1 = qConvertToRealNumber(d1, &ok); |
4019 | 0 | Q_ASSERT(ok); |
4020 | 0 | qreal r2 = qConvertToRealNumber(d2, &ok); |
4021 | 0 | Q_ASSERT(ok); |
4022 | 0 | if (r1 == r2) |
4023 | 0 | return 0; |
4024 | | |
4025 | | // only do fuzzy comparisons for finite, non-zero numbers |
4026 | 0 | int c1 = qFpClassify(r1); |
4027 | 0 | int c2 = qFpClassify(r2); |
4028 | 0 | if ((c1 == FP_NORMAL || c1 == FP_SUBNORMAL) && (c2 == FP_NORMAL || c2 == FP_SUBNORMAL)) { |
4029 | 0 | if (qFuzzyCompare(r1, r2)) |
4030 | 0 | return 0; |
4031 | 0 | } |
4032 | | |
4033 | 0 | return r1 < r2 ? -1 : 1; |
4034 | 0 | } |
4035 | | |
4036 | | /*! |
4037 | | \internal |
4038 | | */ |
4039 | | bool QVariant::cmp(const QVariant &v) const |
4040 | 0 | { |
4041 | 0 | auto cmp_helper = [] (const QVariant::Private &d1, const QVariant::Private &d2) |
4042 | 0 | { |
4043 | 0 | Q_ASSERT(d1.type == d2.type); |
4044 | 0 | if (d1.type >= QMetaType::User) { |
4045 | 0 | int result; |
4046 | 0 | if (QMetaType::equals(QT_PREPEND_NAMESPACE(constData(d1)), QT_PREPEND_NAMESPACE(constData(d2)), d1.type, &result)) |
4047 | 0 | return result == 0; |
4048 | 0 | } |
4049 | 0 | return handlerManager[d1.type]->compare(&d1, &d2); |
4050 | 0 | }; |
4051 | | |
4052 | | // try numerics first, with C++ type promotion rules (no conversion) |
4053 | 0 | if (qIsNumericType(d.type) && qIsNumericType(v.d.type)) |
4054 | 0 | return numericCompare(&d, &v.d) == 0; |
4055 | | |
4056 | 0 | if (d.type == v.d.type) |
4057 | 0 | return cmp_helper(d, v.d); |
4058 | | |
4059 | 0 | QVariant v1 = *this; |
4060 | 0 | QVariant v2 = v; |
4061 | 0 | if (v2.canConvert(v1.d.type)) { |
4062 | 0 | if (!v2.convert(v1.d.type)) |
4063 | 0 | return false; |
4064 | 0 | } else { |
4065 | | // try the opposite conversion, it might work |
4066 | 0 | qSwap(v1, v2); |
4067 | 0 | if (!v2.convert(v1.d.type)) |
4068 | 0 | return false; |
4069 | 0 | } |
4070 | 0 | return cmp_helper(v1.d, v2.d); |
4071 | 0 | } |
4072 | | |
4073 | | /*! |
4074 | | \internal |
4075 | | */ |
4076 | | int QVariant::compare(const QVariant &v) const |
4077 | 0 | { |
4078 | | // try numerics first, with C++ type promotion rules (no conversion) |
4079 | 0 | if (qIsNumericType(d.type) && qIsNumericType(v.d.type)) |
4080 | 0 | return numericCompare(&d, &v.d); |
4081 | | |
4082 | | // check for equality next, as more types implement operator== than operator< |
4083 | 0 | if (cmp(v)) |
4084 | 0 | return 0; |
4085 | | |
4086 | 0 | const QVariant *v1 = this; |
4087 | 0 | const QVariant *v2 = &v; |
4088 | 0 | QVariant converted1; |
4089 | 0 | QVariant converted2; |
4090 | |
|
4091 | 0 | if (d.type != v.d.type) { |
4092 | | // if both types differ, try to convert |
4093 | 0 | if (v2->canConvert(v1->d.type)) { |
4094 | 0 | converted2 = *v2; |
4095 | 0 | if (converted2.convert(v1->d.type)) |
4096 | 0 | v2 = &converted2; |
4097 | 0 | } |
4098 | 0 | if (v1->d.type != v2->d.type && v1->canConvert(v2->d.type)) { |
4099 | 0 | converted1 = *v1; |
4100 | 0 | if (converted1.convert(v2->d.type)) |
4101 | 0 | v1 = &converted1; |
4102 | 0 | } |
4103 | 0 | if (v1->d.type != v2->d.type) { |
4104 | | // if conversion fails, default to toString |
4105 | 0 | int r = v1->toString().compare(v2->toString(), Qt::CaseInsensitive); |
4106 | 0 | if (r == 0) { |
4107 | | // cmp(v) returned false, so we should try to agree with it. |
4108 | 0 | return (v1->d.type < v2->d.type) ? -1 : 1; |
4109 | 0 | } |
4110 | 0 | return r; |
4111 | 0 | } |
4112 | | |
4113 | | // did we end up with two numerics? If so, restart |
4114 | 0 | if (qIsNumericType(v1->d.type) && qIsNumericType(v2->d.type)) |
4115 | 0 | return v1->compare(*v2); |
4116 | 0 | } |
4117 | 0 | if (v1->d.type >= QMetaType::User) { |
4118 | 0 | int result; |
4119 | 0 | if (QMetaType::compare(QT_PREPEND_NAMESPACE(constData(d)), QT_PREPEND_NAMESPACE(constData(v2->d)), d.type, &result)) |
4120 | 0 | return result; |
4121 | 0 | } |
4122 | 0 | switch (v1->d.type) { |
4123 | 0 | case QVariant::Date: |
4124 | 0 | return v1->toDate() < v2->toDate() ? -1 : 1; |
4125 | 0 | case QVariant::Time: |
4126 | 0 | return v1->toTime() < v2->toTime() ? -1 : 1; |
4127 | 0 | case QVariant::DateTime: |
4128 | 0 | return v1->toDateTime() < v2->toDateTime() ? -1 : 1; |
4129 | 0 | case QVariant::StringList: |
4130 | 0 | return v1->toStringList() < v2->toStringList() ? -1 : 1; |
4131 | 0 | } |
4132 | 0 | int r = v1->toString().compare(v2->toString(), Qt::CaseInsensitive); |
4133 | 0 | if (r == 0) { |
4134 | | // cmp(v) returned false, so we should try to agree with it. |
4135 | 0 | return (d.type < v.d.type) ? -1 : 1; |
4136 | 0 | } |
4137 | 0 | return r; |
4138 | 0 | } |
4139 | | |
4140 | | /*! |
4141 | | \internal |
4142 | | */ |
4143 | | |
4144 | | const void *QVariant::constData() const |
4145 | 0 | { |
4146 | 0 | return d.is_shared ? d.data.shared->ptr : reinterpret_cast<const void *>(&d.data.ptr); |
4147 | 0 | } |
4148 | | |
4149 | | /*! |
4150 | | \fn const void* QVariant::data() const |
4151 | | |
4152 | | \internal |
4153 | | */ |
4154 | | |
4155 | | /*! |
4156 | | \internal |
4157 | | */ |
4158 | | void* QVariant::data() |
4159 | 0 | { |
4160 | 0 | detach(); |
4161 | 0 | return const_cast<void *>(constData()); |
4162 | 0 | } |
4163 | | |
4164 | | |
4165 | | /*! |
4166 | | Returns \c true if this is a null variant, false otherwise. A variant is |
4167 | | considered null if it contains no initialized value, or the contained value |
4168 | | is \nullptr or is an instance of a built-in type that has an isNull |
4169 | | method, in which case the result would be the same as calling isNull on the |
4170 | | wrapped object. |
4171 | | |
4172 | | \warning Null variants is not a single state and two null variants may easily |
4173 | | return \c false on the == operator if they do not contain similar null values. |
4174 | | |
4175 | | \sa convert(int) |
4176 | | */ |
4177 | | bool QVariant::isNull() const |
4178 | 8 | { |
4179 | 8 | return handlerManager[d.type]->isNull(&d); |
4180 | 8 | } |
4181 | | |
4182 | | #ifndef QT_NO_DEBUG_STREAM |
4183 | | QDebug operator<<(QDebug dbg, const QVariant &v) |
4184 | 0 | { |
4185 | 0 | QDebugStateSaver saver(dbg); |
4186 | 0 | const uint typeId = v.d.type; |
4187 | 0 | dbg.nospace() << "QVariant("; |
4188 | 0 | if (typeId != QMetaType::UnknownType) { |
4189 | 0 | dbg << QMetaType::typeName(typeId) << ", "; |
4190 | 0 | bool userStream = false; |
4191 | 0 | bool canConvertToString = false; |
4192 | 0 | if (typeId >= QMetaType::User) { |
4193 | 0 | userStream = QMetaType::debugStream(dbg, constData(v.d), typeId); |
4194 | 0 | canConvertToString = v.canConvert<QString>(); |
4195 | 0 | } |
4196 | 0 | if (!userStream && canConvertToString) |
4197 | 0 | dbg << v.toString(); |
4198 | 0 | else if (!userStream) |
4199 | 0 | handlerManager[typeId]->debugStream(dbg, v); |
4200 | 0 | } else { |
4201 | 0 | dbg << "Invalid"; |
4202 | 0 | } |
4203 | 0 | dbg << ')'; |
4204 | 0 | return dbg; |
4205 | 0 | } |
4206 | | |
4207 | | QDebug operator<<(QDebug dbg, const QVariant::Type p) |
4208 | 0 | { |
4209 | 0 | QDebugStateSaver saver(dbg); |
4210 | 0 | dbg.nospace() << "QVariant::" |
4211 | 0 | << (int(p) != int(QMetaType::UnknownType) |
4212 | 0 | ? QMetaType::typeName(p) |
4213 | 0 | : "Invalid"); |
4214 | 0 | return dbg; |
4215 | 0 | } |
4216 | | #endif |
4217 | | |
4218 | | |
4219 | | /*! \fn template<typename T> void QVariant::setValue(const T &value) |
4220 | | |
4221 | | Stores a copy of \a value. If \c{T} is a type that QVariant |
4222 | | doesn't support, QMetaType is used to store the value. A compile |
4223 | | error will occur if QMetaType doesn't handle the type. |
4224 | | |
4225 | | Example: |
4226 | | |
4227 | | \snippet code/src_corelib_kernel_qvariant.cpp 4 |
4228 | | |
4229 | | \sa value(), fromValue(), canConvert() |
4230 | | */ |
4231 | | |
4232 | | /*! \fn template<typename T> T QVariant::value() const |
4233 | | |
4234 | | Returns the stored value converted to the template type \c{T}. |
4235 | | Call canConvert() to find out whether a type can be converted. |
4236 | | If the value cannot be converted, a \l{default-constructed value} |
4237 | | will be returned. |
4238 | | |
4239 | | If the type \c{T} is supported by QVariant, this function behaves |
4240 | | exactly as toString(), toInt() etc. |
4241 | | |
4242 | | Example: |
4243 | | |
4244 | | \snippet code/src_corelib_kernel_qvariant.cpp 5 |
4245 | | |
4246 | | If the QVariant contains a pointer to a type derived from QObject then |
4247 | | \c{T} may be any QObject type. If the pointer stored in the QVariant can be |
4248 | | qobject_cast to T, then that result is returned. Otherwise \nullptr is |
4249 | | returned. Note that this only works for QObject subclasses which use the |
4250 | | Q_OBJECT macro. |
4251 | | |
4252 | | If the QVariant contains a sequential container and \c{T} is QVariantList, the |
4253 | | elements of the container will be converted into \l {QVariant}s and returned as a QVariantList. |
4254 | | |
4255 | | \snippet code/src_corelib_kernel_qvariant.cpp 9 |
4256 | | |
4257 | | \sa setValue(), fromValue(), canConvert(), Q_DECLARE_SEQUENTIAL_CONTAINER_METATYPE() |
4258 | | */ |
4259 | | |
4260 | | /*! \fn bool QVariant::canConvert() const |
4261 | | |
4262 | | Returns \c true if the variant can be converted to the template type \c{T}, |
4263 | | otherwise false. |
4264 | | |
4265 | | Example: |
4266 | | |
4267 | | \snippet code/src_corelib_kernel_qvariant.cpp 6 |
4268 | | |
4269 | | A QVariant containing a pointer to a type derived from QObject will also return true for this |
4270 | | function if a qobject_cast to the template type \c{T} would succeed. Note that this only works |
4271 | | for QObject subclasses which use the Q_OBJECT macro. |
4272 | | |
4273 | | \sa convert() |
4274 | | */ |
4275 | | |
4276 | | /*! \fn template<typename T> static QVariant QVariant::fromValue(const T &value) |
4277 | | |
4278 | | Returns a QVariant containing a copy of \a value. Behaves |
4279 | | exactly like setValue() otherwise. |
4280 | | |
4281 | | Example: |
4282 | | |
4283 | | \snippet code/src_corelib_kernel_qvariant.cpp 7 |
4284 | | |
4285 | | \note If you are working with custom types, you should use |
4286 | | the Q_DECLARE_METATYPE() macro to register your custom type. |
4287 | | |
4288 | | \sa setValue(), value() |
4289 | | */ |
4290 | | |
4291 | | /*! \fn template<typename... Types> QVariant QVariant::fromStdVariant(const std::variant<Types...> &value) |
4292 | | \since 5.11 |
4293 | | |
4294 | | Returns a QVariant with the type and value of the active variant of \a value. If |
4295 | | the active type is std::monostate a default QVariant is returned. |
4296 | | |
4297 | | \note With this method you do not need to register the variant as a Qt metatype, |
4298 | | since the std::variant is resolved before being stored. The component types |
4299 | | should be registered however. |
4300 | | |
4301 | | \sa fromValue() |
4302 | | */ |
4303 | | |
4304 | | #if QT_DEPRECATED_SINCE(5, 14) |
4305 | | /*! |
4306 | | \fn template<typename T> QVariant qVariantFromValue(const T &value) |
4307 | | \relates QVariant |
4308 | | \obsolete |
4309 | | |
4310 | | Returns a variant containing a copy of the given \a value |
4311 | | with template type \c{T}. |
4312 | | |
4313 | | This function is equivalent to QVariant::fromValue(\a value). |
4314 | | |
4315 | | \note This function was provided as a workaround for MSVC 6 |
4316 | | which did not support member template functions. It is advised |
4317 | | to use the other form in new code. |
4318 | | |
4319 | | For example, a QObject pointer can be stored in a variant with the |
4320 | | following code: |
4321 | | |
4322 | | \snippet code/src_corelib_kernel_qvariant.cpp 8 |
4323 | | |
4324 | | \sa QVariant::fromValue() |
4325 | | */ |
4326 | | |
4327 | | /*! \fn template<typename T> void qVariantSetValue(QVariant &variant, const T &value) |
4328 | | \relates QVariant |
4329 | | \obsolete |
4330 | | |
4331 | | Sets the contents of the given \a variant to a copy of the |
4332 | | \a value with the specified template type \c{T}. |
4333 | | |
4334 | | This function is equivalent to QVariant::setValue(\a value). |
4335 | | |
4336 | | \note This function was provided as a workaround for MSVC 6 |
4337 | | which did not support member template functions. It is advised |
4338 | | to use the other form in new code. |
4339 | | |
4340 | | \sa QVariant::setValue() |
4341 | | */ |
4342 | | #endif |
4343 | | |
4344 | | /*! |
4345 | | \fn template<typename T> T qvariant_cast(const QVariant &value) |
4346 | | \relates QVariant |
4347 | | |
4348 | | Returns the given \a value converted to the template type \c{T}. |
4349 | | |
4350 | | This function is equivalent to QVariant::value(). |
4351 | | |
4352 | | \sa QVariant::value() |
4353 | | */ |
4354 | | |
4355 | | /*! \fn template<typename T> T qVariantValue(const QVariant &value) |
4356 | | \relates QVariant |
4357 | | \obsolete |
4358 | | |
4359 | | Returns the given \a value converted to the template type \c{T}. |
4360 | | |
4361 | | This function is equivalent to |
4362 | | \l{QVariant::value()}{QVariant::value}<T>(\a value). |
4363 | | |
4364 | | \note This function was provided as a workaround for MSVC 6 |
4365 | | which did not support member template functions. It is advised |
4366 | | to use the other form in new code. |
4367 | | |
4368 | | \sa QVariant::value(), qvariant_cast() |
4369 | | */ |
4370 | | |
4371 | | /*! \fn bool qVariantCanConvert(const QVariant &value) |
4372 | | \relates QVariant |
4373 | | \obsolete |
4374 | | |
4375 | | Returns \c true if the given \a value can be converted to the |
4376 | | template type specified; otherwise returns \c false. |
4377 | | |
4378 | | This function is equivalent to QVariant::canConvert(\a value). |
4379 | | |
4380 | | \note This function was provided as a workaround for MSVC 6 |
4381 | | which did not support member template functions. It is advised |
4382 | | to use the other form in new code. |
4383 | | |
4384 | | \sa QVariant::canConvert() |
4385 | | */ |
4386 | | |
4387 | | /*! |
4388 | | \typedef QVariantList |
4389 | | \relates QVariant |
4390 | | |
4391 | | Synonym for QList<QVariant>. |
4392 | | */ |
4393 | | |
4394 | | /*! |
4395 | | \typedef QVariantMap |
4396 | | \relates QVariant |
4397 | | |
4398 | | Synonym for QMap<QString, QVariant>. |
4399 | | */ |
4400 | | |
4401 | | /*! |
4402 | | \typedef QVariantHash |
4403 | | \relates QVariant |
4404 | | \since 4.5 |
4405 | | |
4406 | | Synonym for QHash<QString, QVariant>. |
4407 | | */ |
4408 | | |
4409 | | /*! |
4410 | | \typedef QVariant::DataPtr |
4411 | | \internal |
4412 | | */ |
4413 | | /*! \typedef QVariant::f_construct |
4414 | | \internal |
4415 | | */ |
4416 | | |
4417 | | /*! \typedef QVariant::f_clear |
4418 | | \internal |
4419 | | */ |
4420 | | |
4421 | | /*! \typedef QVariant::f_null |
4422 | | \internal |
4423 | | */ |
4424 | | |
4425 | | /*! \typedef QVariant::f_load |
4426 | | \internal |
4427 | | */ |
4428 | | |
4429 | | /*! \typedef QVariant::f_save |
4430 | | \internal |
4431 | | */ |
4432 | | |
4433 | | /*! \typedef QVariant::f_compare |
4434 | | \internal |
4435 | | */ |
4436 | | |
4437 | | /*! \typedef QVariant::f_convert |
4438 | | \internal |
4439 | | */ |
4440 | | |
4441 | | /*! \typedef QVariant::f_canConvert |
4442 | | \internal |
4443 | | */ |
4444 | | |
4445 | | /*! \typedef QVariant::f_debugStream |
4446 | | \internal |
4447 | | */ |
4448 | | |
4449 | | /*! |
4450 | | \fn DataPtr &QVariant::data_ptr() |
4451 | | \internal |
4452 | | */ |
4453 | | |
4454 | | /*! |
4455 | | \fn const DataPtr &QVariant::data_ptr() const |
4456 | | \internal |
4457 | | */ |
4458 | | |
4459 | | /*! |
4460 | | \class QSequentialIterable |
4461 | | \since 5.2 |
4462 | | \inmodule QtCore |
4463 | | \brief The QSequentialIterable class is an iterable interface for a container in a QVariant. |
4464 | | |
4465 | | This class allows several methods of accessing the elements of a container held within |
4466 | | a QVariant. An instance of QSequentialIterable can be extracted from a QVariant if it can |
4467 | | be converted to a QVariantList. |
4468 | | |
4469 | | \snippet code/src_corelib_kernel_qvariant.cpp 9 |
4470 | | |
4471 | | The container itself is not copied before iterating over it. |
4472 | | |
4473 | | \sa QVariant |
4474 | | */ |
4475 | | |
4476 | | /*! |
4477 | | \internal |
4478 | | */ |
4479 | | #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) |
4480 | | QSequentialIterable::QSequentialIterable(QtMetaTypePrivate::QSequentialIterableImpl impl) |
4481 | | #else |
4482 | | QSequentialIterable::QSequentialIterable(const QtMetaTypePrivate::QSequentialIterableImpl &impl) |
4483 | | #endif |
4484 | | : m_impl(impl) |
4485 | 0 | { |
4486 | 0 | } |
4487 | | |
4488 | | QSequentialIterable::const_iterator::const_iterator(const QSequentialIterable &iter, QAtomicInt *ref_) |
4489 | | : m_impl(iter.m_impl), ref(ref_) |
4490 | 0 | { |
4491 | 0 | ref->ref(); |
4492 | 0 | } |
4493 | | |
4494 | | QSequentialIterable::const_iterator::const_iterator(const QtMetaTypePrivate::QSequentialIterableImpl &impl, QAtomicInt *ref_) |
4495 | | : m_impl(impl), ref(ref_) |
4496 | 0 | { |
4497 | 0 | ref->ref(); |
4498 | 0 | } |
4499 | | |
4500 | | void QSequentialIterable::const_iterator::begin() |
4501 | 0 | { |
4502 | 0 | m_impl.moveToBegin(); |
4503 | 0 | } |
4504 | | |
4505 | | void QSequentialIterable::const_iterator::end() |
4506 | 0 | { |
4507 | 0 | m_impl.moveToEnd(); |
4508 | 0 | } |
4509 | | |
4510 | | /*! \fn QSequentialIterable::const_iterator QSequentialIterable::begin() const |
4511 | | |
4512 | | Returns a QSequentialIterable::const_iterator for the beginning of the container. This |
4513 | | can be used in stl-style iteration. |
4514 | | |
4515 | | \sa end() |
4516 | | */ |
4517 | | QSequentialIterable::const_iterator QSequentialIterable::begin() const |
4518 | 0 | { |
4519 | 0 | const_iterator it(*this, new QAtomicInt(0)); |
4520 | 0 | it.begin(); |
4521 | 0 | return it; |
4522 | 0 | } |
4523 | | |
4524 | | /*! |
4525 | | Returns a QSequentialIterable::const_iterator for the end of the container. This |
4526 | | can be used in stl-style iteration. |
4527 | | |
4528 | | \sa begin() |
4529 | | */ |
4530 | | QSequentialIterable::const_iterator QSequentialIterable::end() const |
4531 | 0 | { |
4532 | 0 | const_iterator it(*this, new QAtomicInt(0)); |
4533 | 0 | it.end(); |
4534 | 0 | return it; |
4535 | 0 | } |
4536 | | |
4537 | 0 | static const QVariant variantFromVariantDataHelper(const QtMetaTypePrivate::VariantData &d) { |
4538 | 0 | QVariant v; |
4539 | 0 | if (d.metaTypeId == qMetaTypeId<QVariant>()) |
4540 | 0 | v = *reinterpret_cast<const QVariant*>(d.data); |
4541 | 0 | else |
4542 | 0 | v = QVariant(d.metaTypeId, d.data, d.flags & ~QVariantConstructionFlags::ShouldDeleteVariantData); |
4543 | 0 | if (d.flags & QVariantConstructionFlags::ShouldDeleteVariantData) |
4544 | 0 | QMetaType::destroy(d.metaTypeId, const_cast<void *>(d.data)); |
4545 | 0 | return v; |
4546 | 0 | } |
4547 | | |
4548 | | /*! |
4549 | | Returns the element at position \a idx in the container. |
4550 | | */ |
4551 | | QVariant QSequentialIterable::at(int idx) const |
4552 | 0 | { |
4553 | 0 | const QtMetaTypePrivate::VariantData d = m_impl.at(idx); |
4554 | 0 | return variantFromVariantDataHelper(d); |
4555 | 0 | } |
4556 | | |
4557 | | /*! |
4558 | | Returns the number of elements in the container. |
4559 | | */ |
4560 | | int QSequentialIterable::size() const |
4561 | 0 | { |
4562 | 0 | return m_impl.size(); |
4563 | 0 | } |
4564 | | |
4565 | | /*! |
4566 | | Returns whether it is possible to iterate over the container in reverse. This |
4567 | | corresponds to the std::bidirectional_iterator_tag iterator trait of the |
4568 | | const_iterator of the container. |
4569 | | */ |
4570 | | bool QSequentialIterable::canReverseIterate() const |
4571 | 0 | { |
4572 | 0 | return m_impl._iteratorCapabilities & QtMetaTypePrivate::BiDirectionalCapability; |
4573 | 0 | } |
4574 | | |
4575 | | /*! |
4576 | | \class QSequentialIterable::const_iterator |
4577 | | \since 5.2 |
4578 | | \inmodule QtCore |
4579 | | \brief The QSequentialIterable::const_iterator allows iteration over a container in a QVariant. |
4580 | | |
4581 | | A QSequentialIterable::const_iterator can only be created by a QSequentialIterable instance, |
4582 | | and can be used in a way similar to other stl-style iterators. |
4583 | | |
4584 | | \snippet code/src_corelib_kernel_qvariant.cpp 9 |
4585 | | |
4586 | | \sa QSequentialIterable |
4587 | | */ |
4588 | | |
4589 | | |
4590 | | /*! |
4591 | | Destroys the QSequentialIterable::const_iterator. |
4592 | | */ |
4593 | 0 | QSequentialIterable::const_iterator::~const_iterator() { |
4594 | 0 | if (!ref->deref()) { |
4595 | 0 | m_impl.destroyIter(); |
4596 | 0 | delete ref; |
4597 | 0 | } |
4598 | 0 | } |
4599 | | |
4600 | | /*! |
4601 | | Creates a copy of \a other. |
4602 | | */ |
4603 | | QSequentialIterable::const_iterator::const_iterator(const const_iterator &other) |
4604 | | : m_impl(other.m_impl), ref(other.ref) |
4605 | 0 | { |
4606 | 0 | ref->ref(); |
4607 | 0 | } |
4608 | | |
4609 | | /*! |
4610 | | Assigns \a other to this. |
4611 | | */ |
4612 | | QSequentialIterable::const_iterator& |
4613 | | QSequentialIterable::const_iterator::operator=(const const_iterator &other) |
4614 | 0 | { |
4615 | 0 | other.ref->ref(); |
4616 | 0 | if (!ref->deref()) { |
4617 | 0 | m_impl.destroyIter(); |
4618 | 0 | delete ref; |
4619 | 0 | } |
4620 | 0 | m_impl = other.m_impl; |
4621 | 0 | ref = other.ref; |
4622 | 0 | return *this; |
4623 | 0 | } |
4624 | | |
4625 | | /*! |
4626 | | Returns the current item, converted to a QVariant. |
4627 | | */ |
4628 | | const QVariant QSequentialIterable::const_iterator::operator*() const |
4629 | 0 | { |
4630 | 0 | const QtMetaTypePrivate::VariantData d = m_impl.getCurrent(); |
4631 | 0 | return variantFromVariantDataHelper(d); |
4632 | 0 | } |
4633 | | |
4634 | | /*! |
4635 | | Returns \c true if \a other points to the same item as this |
4636 | | iterator; otherwise returns \c false. |
4637 | | |
4638 | | \sa operator!=() |
4639 | | */ |
4640 | | bool QSequentialIterable::const_iterator::operator==(const const_iterator &other) const |
4641 | 0 | { |
4642 | 0 | return m_impl.equal(other.m_impl); |
4643 | 0 | } |
4644 | | |
4645 | | /*! |
4646 | | Returns \c true if \a other points to a different item than this |
4647 | | iterator; otherwise returns \c false. |
4648 | | |
4649 | | \sa operator==() |
4650 | | */ |
4651 | | bool QSequentialIterable::const_iterator::operator!=(const const_iterator &other) const |
4652 | 0 | { |
4653 | 0 | return !m_impl.equal(other.m_impl); |
4654 | 0 | } |
4655 | | |
4656 | | /*! |
4657 | | The prefix ++ operator (\c{++it}) advances the iterator to the |
4658 | | next item in the container and returns an iterator to the new current |
4659 | | item. |
4660 | | |
4661 | | Calling this function on QSequentialIterable::end() leads to undefined results. |
4662 | | |
4663 | | \sa operator--() |
4664 | | */ |
4665 | | QSequentialIterable::const_iterator &QSequentialIterable::const_iterator::operator++() |
4666 | 0 | { |
4667 | 0 | m_impl.advance(1); |
4668 | 0 | return *this; |
4669 | 0 | } |
4670 | | |
4671 | | /*! |
4672 | | \overload |
4673 | | |
4674 | | The postfix ++ operator (\c{it++}) advances the iterator to the |
4675 | | next item in the container and returns an iterator to the previously |
4676 | | current item. |
4677 | | */ |
4678 | | QSequentialIterable::const_iterator QSequentialIterable::const_iterator::operator++(int) |
4679 | 0 | { |
4680 | 0 | QtMetaTypePrivate::QSequentialIterableImpl impl; |
4681 | 0 | impl.copy(m_impl); |
4682 | 0 | m_impl.advance(1); |
4683 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
4684 | 0 | } |
4685 | | |
4686 | | /*! |
4687 | | The prefix -- operator (\c{--it}) makes the preceding item |
4688 | | current and returns an iterator to the new current item. |
4689 | | |
4690 | | Calling this function on QSequentialIterable::begin() leads to undefined results. |
4691 | | |
4692 | | If the container in the QVariant does not support bi-directional iteration, calling this function |
4693 | | leads to undefined results. |
4694 | | |
4695 | | \sa operator++(), canReverseIterate() |
4696 | | */ |
4697 | | QSequentialIterable::const_iterator &QSequentialIterable::const_iterator::operator--() |
4698 | 0 | { |
4699 | 0 | m_impl.advance(-1); |
4700 | 0 | return *this; |
4701 | 0 | } |
4702 | | |
4703 | | /*! |
4704 | | \overload |
4705 | | |
4706 | | The postfix -- operator (\c{it--}) makes the preceding item |
4707 | | current and returns an iterator to the previously current item. |
4708 | | |
4709 | | If the container in the QVariant does not support bi-directional iteration, calling this function |
4710 | | leads to undefined results. |
4711 | | |
4712 | | \sa canReverseIterate() |
4713 | | */ |
4714 | | QSequentialIterable::const_iterator QSequentialIterable::const_iterator::operator--(int) |
4715 | 0 | { |
4716 | 0 | QtMetaTypePrivate::QSequentialIterableImpl impl; |
4717 | 0 | impl.copy(m_impl); |
4718 | 0 | m_impl.advance(-1); |
4719 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
4720 | 0 | } |
4721 | | |
4722 | | /*! |
4723 | | Advances the iterator by \a j items. |
4724 | | |
4725 | | \sa operator-=(), operator+() |
4726 | | */ |
4727 | | QSequentialIterable::const_iterator &QSequentialIterable::const_iterator::operator+=(int j) |
4728 | 0 | { |
4729 | 0 | m_impl.advance(j); |
4730 | 0 | return *this; |
4731 | 0 | } |
4732 | | |
4733 | | /*! |
4734 | | Makes the iterator go back by \a j items. |
4735 | | |
4736 | | If the container in the QVariant does not support bi-directional iteration, calling this function |
4737 | | leads to undefined results. |
4738 | | |
4739 | | \sa operator+=(), operator-(), canReverseIterate() |
4740 | | */ |
4741 | | QSequentialIterable::const_iterator &QSequentialIterable::const_iterator::operator-=(int j) |
4742 | 0 | { |
4743 | 0 | m_impl.advance(-j); |
4744 | 0 | return *this; |
4745 | 0 | } |
4746 | | |
4747 | | /*! |
4748 | | Returns an iterator to the item at \a j positions forward from |
4749 | | this iterator. |
4750 | | |
4751 | | \sa operator-(), operator+=() |
4752 | | */ |
4753 | | QSequentialIterable::const_iterator QSequentialIterable::const_iterator::operator+(int j) const |
4754 | 0 | { |
4755 | 0 | QtMetaTypePrivate::QSequentialIterableImpl impl; |
4756 | 0 | impl.copy(m_impl); |
4757 | 0 | impl.advance(j); |
4758 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
4759 | 0 | } |
4760 | | |
4761 | | /*! |
4762 | | Returns an iterator to the item at \a j positions backward from |
4763 | | this iterator. |
4764 | | |
4765 | | If the container in the QVariant does not support bi-directional iteration, calling this function |
4766 | | leads to undefined results. |
4767 | | |
4768 | | \sa operator+(), operator-=(), canReverseIterate() |
4769 | | */ |
4770 | | QSequentialIterable::const_iterator QSequentialIterable::const_iterator::operator-(int j) const |
4771 | 0 | { |
4772 | 0 | QtMetaTypePrivate::QSequentialIterableImpl impl; |
4773 | 0 | impl.copy(m_impl); |
4774 | 0 | impl.advance(-j); |
4775 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
4776 | 0 | } |
4777 | | |
4778 | | /*! |
4779 | | \class QAssociativeIterable |
4780 | | \since 5.2 |
4781 | | \inmodule QtCore |
4782 | | \brief The QAssociativeIterable class is an iterable interface for an associative container in a QVariant. |
4783 | | |
4784 | | This class allows several methods of accessing the elements of an associative container held within |
4785 | | a QVariant. An instance of QAssociativeIterable can be extracted from a QVariant if it can |
4786 | | be converted to a QVariantHash or QVariantMap. |
4787 | | |
4788 | | \snippet code/src_corelib_kernel_qvariant.cpp 10 |
4789 | | |
4790 | | The container itself is not copied before iterating over it. |
4791 | | |
4792 | | \sa QVariant |
4793 | | */ |
4794 | | |
4795 | | /*! |
4796 | | \internal |
4797 | | */ |
4798 | | #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) |
4799 | | QAssociativeIterable::QAssociativeIterable(QtMetaTypePrivate::QAssociativeIterableImpl impl) |
4800 | | #else |
4801 | | QAssociativeIterable::QAssociativeIterable(const QtMetaTypePrivate::QAssociativeIterableImpl &impl) |
4802 | | #endif |
4803 | | : m_impl(impl) |
4804 | 0 | { |
4805 | 0 | } |
4806 | | |
4807 | | QAssociativeIterable::const_iterator::const_iterator(const QAssociativeIterable &iter, QAtomicInt *ref_) |
4808 | | : m_impl(iter.m_impl), ref(ref_) |
4809 | 0 | { |
4810 | 0 | ref->ref(); |
4811 | 0 | } |
4812 | | |
4813 | | QAssociativeIterable::const_iterator::const_iterator(const QtMetaTypePrivate::QAssociativeIterableImpl &impl, QAtomicInt *ref_) |
4814 | | : m_impl(impl), ref(ref_) |
4815 | 0 | { |
4816 | 0 | ref->ref(); |
4817 | 0 | } |
4818 | | |
4819 | | void QAssociativeIterable::const_iterator::begin() |
4820 | 0 | { |
4821 | 0 | m_impl.begin(); |
4822 | 0 | } |
4823 | | |
4824 | | void QAssociativeIterable::const_iterator::end() |
4825 | 0 | { |
4826 | 0 | m_impl.end(); |
4827 | 0 | } |
4828 | | |
4829 | | void QAssociativeIterable::const_iterator::find(const QVariant &key) |
4830 | 0 | { |
4831 | 0 | Q_ASSERT(key.userType() == m_impl._metaType_id_key); |
4832 | 0 | const QtMetaTypePrivate::VariantData dkey(key.userType(), key.constData(), 0 /*key.flags()*/); |
4833 | 0 | m_impl.find(dkey); |
4834 | 0 | } |
4835 | | |
4836 | | /*! |
4837 | | Returns a QAssociativeIterable::const_iterator for the beginning of the container. This |
4838 | | can be used in stl-style iteration. |
4839 | | |
4840 | | \sa end() |
4841 | | */ |
4842 | | QAssociativeIterable::const_iterator QAssociativeIterable::begin() const |
4843 | 0 | { |
4844 | 0 | const_iterator it(*this, new QAtomicInt(0)); |
4845 | 0 | it.begin(); |
4846 | 0 | return it; |
4847 | 0 | } |
4848 | | |
4849 | | /*! |
4850 | | Returns a QAssociativeIterable::const_iterator for the end of the container. This |
4851 | | can be used in stl-style iteration. |
4852 | | |
4853 | | \sa begin() |
4854 | | */ |
4855 | | QAssociativeIterable::const_iterator QAssociativeIterable::end() const |
4856 | 0 | { |
4857 | 0 | const_iterator it(*this, new QAtomicInt(0)); |
4858 | 0 | it.end(); |
4859 | 0 | return it; |
4860 | 0 | } |
4861 | | |
4862 | | /*! |
4863 | | \since 5.5 |
4864 | | |
4865 | | Returns a QAssociativeIterable::const_iterator for the given key \a key |
4866 | | in the container, if the types are convertible. |
4867 | | |
4868 | | If the key is not found, returns end(). |
4869 | | |
4870 | | This can be used in stl-style iteration. |
4871 | | |
4872 | | \sa begin(), end(), value() |
4873 | | */ |
4874 | | QAssociativeIterable::const_iterator QAssociativeIterable::find(const QVariant &key) const |
4875 | 0 | { |
4876 | 0 | const_iterator it(*this, new QAtomicInt(0)); |
4877 | 0 | QVariant key_ = key; |
4878 | 0 | if (key_.canConvert(m_impl._metaType_id_key) && key_.convert(m_impl._metaType_id_key)) |
4879 | 0 | it.find(key_); |
4880 | 0 | else |
4881 | 0 | it.end(); |
4882 | 0 | return it; |
4883 | 0 | } |
4884 | | |
4885 | | /*! |
4886 | | Returns the value for the given \a key in the container, if the types are convertible. |
4887 | | |
4888 | | \sa find() |
4889 | | */ |
4890 | | QVariant QAssociativeIterable::value(const QVariant &key) const |
4891 | 0 | { |
4892 | 0 | const const_iterator it = find(key); |
4893 | 0 | if (it == end()) |
4894 | 0 | return QVariant(); |
4895 | 0 | return *it; |
4896 | 0 | } |
4897 | | |
4898 | | /*! |
4899 | | Returns the number of elements in the container. |
4900 | | */ |
4901 | | int QAssociativeIterable::size() const |
4902 | 0 | { |
4903 | 0 | return m_impl.size(); |
4904 | 0 | } |
4905 | | |
4906 | | /*! |
4907 | | \class QAssociativeIterable::const_iterator |
4908 | | \since 5.2 |
4909 | | \inmodule QtCore |
4910 | | \brief The QAssociativeIterable::const_iterator allows iteration over a container in a QVariant. |
4911 | | |
4912 | | A QAssociativeIterable::const_iterator can only be created by a QAssociativeIterable instance, |
4913 | | and can be used in a way similar to other stl-style iterators. |
4914 | | |
4915 | | \snippet code/src_corelib_kernel_qvariant.cpp 10 |
4916 | | |
4917 | | \sa QAssociativeIterable |
4918 | | */ |
4919 | | |
4920 | | |
4921 | | /*! |
4922 | | Destroys the QAssociativeIterable::const_iterator. |
4923 | | */ |
4924 | | QAssociativeIterable::const_iterator::~const_iterator() |
4925 | 0 | { |
4926 | 0 | if (!ref->deref()) { |
4927 | 0 | m_impl.destroyIter(); |
4928 | 0 | delete ref; |
4929 | 0 | } |
4930 | 0 | } |
4931 | | |
4932 | | /*! |
4933 | | Creates a copy of \a other. |
4934 | | */ |
4935 | | QAssociativeIterable::const_iterator::const_iterator(const const_iterator &other) |
4936 | | : m_impl(other.m_impl), ref(other.ref) |
4937 | 0 | { |
4938 | 0 | ref->ref(); |
4939 | 0 | } |
4940 | | |
4941 | | /*! |
4942 | | Assigns \a other to this. |
4943 | | */ |
4944 | | QAssociativeIterable::const_iterator& |
4945 | | QAssociativeIterable::const_iterator::operator=(const const_iterator &other) |
4946 | 0 | { |
4947 | 0 | other.ref->ref(); |
4948 | 0 | if (!ref->deref()) { |
4949 | 0 | m_impl.destroyIter(); |
4950 | 0 | delete ref; |
4951 | 0 | } |
4952 | 0 | m_impl = other.m_impl; |
4953 | 0 | ref = other.ref; |
4954 | 0 | return *this; |
4955 | 0 | } |
4956 | | |
4957 | | /*! |
4958 | | Returns the current value, converted to a QVariant. |
4959 | | */ |
4960 | | const QVariant QAssociativeIterable::const_iterator::operator*() const |
4961 | 0 | { |
4962 | 0 | const QtMetaTypePrivate::VariantData d = m_impl.getCurrentValue(); |
4963 | 0 | return variantFromVariantDataHelper(d); |
4964 | 0 | } |
4965 | | |
4966 | | /*! |
4967 | | Returns the current key, converted to a QVariant. |
4968 | | */ |
4969 | | const QVariant QAssociativeIterable::const_iterator::key() const |
4970 | 0 | { |
4971 | 0 | const QtMetaTypePrivate::VariantData d = m_impl.getCurrentKey(); |
4972 | 0 | return variantFromVariantDataHelper(d); |
4973 | 0 | } |
4974 | | |
4975 | | /*! |
4976 | | Returns the current value, converted to a QVariant. |
4977 | | */ |
4978 | | const QVariant QAssociativeIterable::const_iterator::value() const |
4979 | 0 | { |
4980 | 0 | return operator*(); |
4981 | 0 | } |
4982 | | |
4983 | | /*! |
4984 | | Returns \c true if \a other points to the same item as this |
4985 | | iterator; otherwise returns \c false. |
4986 | | |
4987 | | \sa operator!=() |
4988 | | */ |
4989 | | bool QAssociativeIterable::const_iterator::operator==(const const_iterator &other) const |
4990 | 0 | { |
4991 | 0 | return m_impl.equal(other.m_impl); |
4992 | 0 | } |
4993 | | |
4994 | | /*! |
4995 | | Returns \c true if \a other points to a different item than this |
4996 | | iterator; otherwise returns \c false. |
4997 | | |
4998 | | \sa operator==() |
4999 | | */ |
5000 | | bool QAssociativeIterable::const_iterator::operator!=(const const_iterator &other) const |
5001 | 0 | { |
5002 | 0 | return !m_impl.equal(other.m_impl); |
5003 | 0 | } |
5004 | | |
5005 | | /*! |
5006 | | The prefix ++ operator (\c{++it}) advances the iterator to the |
5007 | | next item in the container and returns an iterator to the new current |
5008 | | item. |
5009 | | |
5010 | | Calling this function on QAssociativeIterable::end() leads to undefined results. |
5011 | | |
5012 | | \sa operator--() |
5013 | | */ |
5014 | | QAssociativeIterable::const_iterator &QAssociativeIterable::const_iterator::operator++() |
5015 | 0 | { |
5016 | 0 | m_impl.advance(1); |
5017 | 0 | return *this; |
5018 | 0 | } |
5019 | | |
5020 | | /*! |
5021 | | \overload |
5022 | | |
5023 | | The postfix ++ operator (\c{it++}) advances the iterator to the |
5024 | | next item in the container and returns an iterator to the previously |
5025 | | current item. |
5026 | | */ |
5027 | | QAssociativeIterable::const_iterator QAssociativeIterable::const_iterator::operator++(int) |
5028 | 0 | { |
5029 | 0 | QtMetaTypePrivate::QAssociativeIterableImpl impl; |
5030 | 0 | impl.copy(m_impl); |
5031 | 0 | m_impl.advance(1); |
5032 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
5033 | 0 | } |
5034 | | |
5035 | | /*! |
5036 | | The prefix -- operator (\c{--it}) makes the preceding item |
5037 | | current and returns an iterator to the new current item. |
5038 | | |
5039 | | Calling this function on QAssociativeIterable::begin() leads to undefined results. |
5040 | | |
5041 | | \sa operator++() |
5042 | | */ |
5043 | | QAssociativeIterable::const_iterator &QAssociativeIterable::const_iterator::operator--() |
5044 | 0 | { |
5045 | 0 | m_impl.advance(-1); |
5046 | 0 | return *this; |
5047 | 0 | } |
5048 | | |
5049 | | /*! |
5050 | | \overload |
5051 | | |
5052 | | The postfix -- operator (\c{it--}) makes the preceding item |
5053 | | current and returns an iterator to the previously current item. |
5054 | | */ |
5055 | | QAssociativeIterable::const_iterator QAssociativeIterable::const_iterator::operator--(int) |
5056 | 0 | { |
5057 | 0 | QtMetaTypePrivate::QAssociativeIterableImpl impl; |
5058 | 0 | impl.copy(m_impl); |
5059 | 0 | m_impl.advance(-1); |
5060 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
5061 | 0 | } |
5062 | | |
5063 | | /*! |
5064 | | Advances the iterator by \a j items. |
5065 | | |
5066 | | \sa operator-=(), operator+() |
5067 | | */ |
5068 | | QAssociativeIterable::const_iterator &QAssociativeIterable::const_iterator::operator+=(int j) |
5069 | 0 | { |
5070 | 0 | m_impl.advance(j); |
5071 | 0 | return *this; |
5072 | 0 | } |
5073 | | |
5074 | | /*! |
5075 | | Makes the iterator go back by \a j items. |
5076 | | |
5077 | | \sa operator+=(), operator-() |
5078 | | */ |
5079 | | QAssociativeIterable::const_iterator &QAssociativeIterable::const_iterator::operator-=(int j) |
5080 | 0 | { |
5081 | 0 | m_impl.advance(-j); |
5082 | 0 | return *this; |
5083 | 0 | } |
5084 | | |
5085 | | /*! |
5086 | | Returns an iterator to the item at \a j positions forward from |
5087 | | this iterator. |
5088 | | |
5089 | | \sa operator-(), operator+=() |
5090 | | */ |
5091 | | QAssociativeIterable::const_iterator QAssociativeIterable::const_iterator::operator+(int j) const |
5092 | 0 | { |
5093 | 0 | QtMetaTypePrivate::QAssociativeIterableImpl impl; |
5094 | 0 | impl.copy(m_impl); |
5095 | 0 | impl.advance(j); |
5096 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
5097 | 0 | } |
5098 | | |
5099 | | /*! |
5100 | | Returns an iterator to the item at \a j positions backward from |
5101 | | this iterator. |
5102 | | |
5103 | | \sa operator+(), operator-=() |
5104 | | */ |
5105 | | QAssociativeIterable::const_iterator QAssociativeIterable::const_iterator::operator-(int j) const |
5106 | 0 | { |
5107 | 0 | QtMetaTypePrivate::QAssociativeIterableImpl impl; |
5108 | 0 | impl.copy(m_impl); |
5109 | 0 | impl.advance(-j); |
5110 | 0 | return const_iterator(impl, new QAtomicInt(0)); |
5111 | 0 | } |
5112 | | |
5113 | | QT_END_NAMESPACE |