qqml.h 19 KB

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  1. /****************************************************************************
  2. **
  3. ** Copyright (C) 2016 The Qt Company Ltd.
  4. ** Contact: https://www.qt.io/licensing/
  5. **
  6. ** This file is part of the QtQml module of the Qt Toolkit.
  7. **
  8. ** $QT_BEGIN_LICENSE:LGPL$
  9. ** Commercial License Usage
  10. ** Licensees holding valid commercial Qt licenses may use this file in
  11. ** accordance with the commercial license agreement provided with the
  12. ** Software or, alternatively, in accordance with the terms contained in
  13. ** a written agreement between you and The Qt Company. For licensing terms
  14. ** and conditions see https://www.qt.io/terms-conditions. For further
  15. ** information use the contact form at https://www.qt.io/contact-us.
  16. **
  17. ** GNU Lesser General Public License Usage
  18. ** Alternatively, this file may be used under the terms of the GNU Lesser
  19. ** General Public License version 3 as published by the Free Software
  20. ** Foundation and appearing in the file LICENSE.LGPL3 included in the
  21. ** packaging of this file. Please review the following information to
  22. ** ensure the GNU Lesser General Public License version 3 requirements
  23. ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
  24. **
  25. ** GNU General Public License Usage
  26. ** Alternatively, this file may be used under the terms of the GNU
  27. ** General Public License version 2.0 or (at your option) the GNU General
  28. ** Public license version 3 or any later version approved by the KDE Free
  29. ** Qt Foundation. The licenses are as published by the Free Software
  30. ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
  31. ** included in the packaging of this file. Please review the following
  32. ** information to ensure the GNU General Public License requirements will
  33. ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
  34. ** https://www.gnu.org/licenses/gpl-3.0.html.
  35. **
  36. ** $QT_END_LICENSE$
  37. **
  38. ****************************************************************************/
  39. #ifndef QQML_H
  40. #define QQML_H
  41. #include <QtQml/qqmlprivate.h>
  42. #include <QtQml/qqmlparserstatus.h>
  43. #include <QtQml/qqmlpropertyvaluesource.h>
  44. #include <QtQml/qqmllist.h>
  45. #include <QtCore/qbytearray.h>
  46. #include <QtCore/qmetaobject.h>
  47. #define QML_VERSION 0x020000
  48. #define QML_VERSION_STR "2.0"
  49. #define QML_DECLARE_TYPE(TYPE) \
  50. Q_DECLARE_METATYPE(TYPE *) \
  51. Q_DECLARE_METATYPE(QQmlListProperty<TYPE>)
  52. #define QML_DECLARE_TYPE_HASMETATYPE(TYPE) \
  53. Q_DECLARE_METATYPE(QQmlListProperty<TYPE>)
  54. #define QML_DECLARE_INTERFACE(INTERFACE) \
  55. QML_DECLARE_TYPE(INTERFACE)
  56. #define QML_DECLARE_INTERFACE_HASMETATYPE(INTERFACE) \
  57. QML_DECLARE_TYPE_HASMETATYPE(INTERFACE)
  58. enum { /* TYPEINFO flags */
  59. QML_HAS_ATTACHED_PROPERTIES = 0x01
  60. };
  61. #define QML_DECLARE_TYPEINFO(TYPE, FLAGS) \
  62. QT_BEGIN_NAMESPACE \
  63. template <> \
  64. class QQmlTypeInfo<TYPE > \
  65. { \
  66. public: \
  67. enum { \
  68. hasAttachedProperties = (((FLAGS) & QML_HAS_ATTACHED_PROPERTIES) == QML_HAS_ATTACHED_PROPERTIES) \
  69. }; \
  70. }; \
  71. QT_END_NAMESPACE
  72. QT_BEGIN_NAMESPACE
  73. class QQmlPropertyValueInterceptor;
  74. #define QML_GETTYPENAMES \
  75. const char *className = T::staticMetaObject.className(); \
  76. const int nameLen = int(strlen(className)); \
  77. QVarLengthArray<char,48> pointerName(nameLen+2); \
  78. memcpy(pointerName.data(), className, size_t(nameLen)); \
  79. pointerName[nameLen] = '*'; \
  80. pointerName[nameLen+1] = '\0'; \
  81. const int listLen = int(strlen("QQmlListProperty<")); \
  82. QVarLengthArray<char,64> listName(listLen + nameLen + 2); \
  83. memcpy(listName.data(), "QQmlListProperty<", size_t(listLen)); \
  84. memcpy(listName.data()+listLen, className, size_t(nameLen)); \
  85. listName[listLen+nameLen] = '>'; \
  86. listName[listLen+nameLen+1] = '\0';
  87. void Q_QML_EXPORT qmlClearTypeRegistrations();
  88. template<typename T>
  89. int qmlRegisterType()
  90. {
  91. QML_GETTYPENAMES
  92. QQmlPrivate::RegisterType type = {
  93. 0,
  94. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  95. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  96. 0,
  97. Q_NULLPTR,
  98. QString(),
  99. Q_NULLPTR, 0, 0, Q_NULLPTR, &T::staticMetaObject,
  100. QQmlPrivate::attachedPropertiesFunc<T>(),
  101. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  102. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  103. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  104. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  105. Q_NULLPTR, Q_NULLPTR,
  106. Q_NULLPTR,
  107. 0
  108. };
  109. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  110. }
  111. int Q_QML_EXPORT qmlRegisterTypeNotAvailable(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& message);
  112. template<typename T>
  113. int qmlRegisterUncreatableType(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& reason)
  114. {
  115. QML_GETTYPENAMES
  116. QQmlPrivate::RegisterType type = {
  117. 0,
  118. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  119. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  120. 0,
  121. Q_NULLPTR,
  122. reason,
  123. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  124. QQmlPrivate::attachedPropertiesFunc<T>(),
  125. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  126. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  127. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  128. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  129. Q_NULLPTR, Q_NULLPTR,
  130. Q_NULLPTR,
  131. 0
  132. };
  133. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  134. }
  135. template<typename T, int metaObjectRevision>
  136. int qmlRegisterUncreatableType(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& reason)
  137. {
  138. QML_GETTYPENAMES
  139. QQmlPrivate::RegisterType type = {
  140. 1,
  141. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  142. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  143. 0,
  144. Q_NULLPTR,
  145. reason,
  146. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  147. QQmlPrivate::attachedPropertiesFunc<T>(),
  148. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  149. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  150. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  151. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  152. Q_NULLPTR, Q_NULLPTR,
  153. Q_NULLPTR,
  154. metaObjectRevision
  155. };
  156. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  157. }
  158. template<typename T, typename E>
  159. int qmlRegisterExtendedUncreatableType(const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString& reason)
  160. {
  161. QML_GETTYPENAMES
  162. QQmlAttachedPropertiesFunc attached = QQmlPrivate::attachedPropertiesFunc<E>();
  163. const QMetaObject * attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<E>();
  164. if (!attached) {
  165. attached = QQmlPrivate::attachedPropertiesFunc<T>();
  166. attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<T>();
  167. }
  168. QQmlPrivate::RegisterType type = {
  169. 0,
  170. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  171. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  172. 0,
  173. Q_NULLPTR,
  174. reason,
  175. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  176. attached,
  177. attachedMetaObject,
  178. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  179. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  180. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  181. QQmlPrivate::createParent<E>, &E::staticMetaObject,
  182. Q_NULLPTR,
  183. 0
  184. };
  185. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  186. }
  187. template<typename T>
  188. int qmlRegisterType(const char *uri, int versionMajor, int versionMinor, const char *qmlName)
  189. {
  190. QML_GETTYPENAMES
  191. QQmlPrivate::RegisterType type = {
  192. 0,
  193. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  194. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  195. sizeof(T), QQmlPrivate::createInto<T>,
  196. QString(),
  197. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  198. QQmlPrivate::attachedPropertiesFunc<T>(),
  199. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  200. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  201. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  202. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  203. Q_NULLPTR, Q_NULLPTR,
  204. Q_NULLPTR,
  205. 0
  206. };
  207. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  208. }
  209. template<typename T, int metaObjectRevision>
  210. int qmlRegisterType(const char *uri, int versionMajor, int versionMinor, const char *qmlName)
  211. {
  212. QML_GETTYPENAMES
  213. QQmlPrivate::RegisterType type = {
  214. 1,
  215. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  216. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  217. sizeof(T), QQmlPrivate::createInto<T>,
  218. QString(),
  219. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  220. QQmlPrivate::attachedPropertiesFunc<T>(),
  221. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  222. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  223. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  224. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  225. Q_NULLPTR, Q_NULLPTR,
  226. Q_NULLPTR,
  227. metaObjectRevision
  228. };
  229. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  230. }
  231. template<typename T, int metaObjectRevision>
  232. int qmlRegisterRevision(const char *uri, int versionMajor, int versionMinor)
  233. {
  234. QML_GETTYPENAMES
  235. QQmlPrivate::RegisterType type = {
  236. 1,
  237. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  238. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  239. sizeof(T), QQmlPrivate::createInto<T>,
  240. QString(),
  241. uri, versionMajor, versionMinor, 0, &T::staticMetaObject,
  242. QQmlPrivate::attachedPropertiesFunc<T>(),
  243. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  244. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  245. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  246. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  247. Q_NULLPTR, Q_NULLPTR,
  248. Q_NULLPTR,
  249. metaObjectRevision
  250. };
  251. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  252. }
  253. template<typename T, typename E>
  254. int qmlRegisterExtendedType()
  255. {
  256. QML_GETTYPENAMES
  257. QQmlPrivate::RegisterType type = {
  258. 0,
  259. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  260. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  261. 0,
  262. Q_NULLPTR,
  263. QString(),
  264. Q_NULLPTR, 0, 0, Q_NULLPTR, &T::staticMetaObject,
  265. QQmlPrivate::attachedPropertiesFunc<T>(),
  266. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  267. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  268. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  269. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  270. QQmlPrivate::createParent<E>, &E::staticMetaObject,
  271. Q_NULLPTR,
  272. 0
  273. };
  274. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  275. }
  276. template<typename T, typename E>
  277. int qmlRegisterExtendedType(const char *uri, int versionMajor, int versionMinor,
  278. const char *qmlName)
  279. {
  280. QML_GETTYPENAMES
  281. QQmlAttachedPropertiesFunc attached = QQmlPrivate::attachedPropertiesFunc<E>();
  282. const QMetaObject * attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<E>();
  283. if (!attached) {
  284. attached = QQmlPrivate::attachedPropertiesFunc<T>();
  285. attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<T>();
  286. }
  287. QQmlPrivate::RegisterType type = {
  288. 0,
  289. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  290. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  291. sizeof(T), QQmlPrivate::createInto<T>,
  292. QString(),
  293. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  294. attached,
  295. attachedMetaObject,
  296. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  297. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  298. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  299. QQmlPrivate::createParent<E>, &E::staticMetaObject,
  300. Q_NULLPTR,
  301. 0
  302. };
  303. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  304. }
  305. template<typename T>
  306. int qmlRegisterInterface(const char *typeName)
  307. {
  308. QByteArray name(typeName);
  309. QByteArray pointerName(name + '*');
  310. QByteArray listName("QQmlListProperty<" + name + '>');
  311. QQmlPrivate::RegisterInterface qmlInterface = {
  312. 0,
  313. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  314. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  315. qobject_interface_iid<T *>()
  316. };
  317. return QQmlPrivate::qmlregister(QQmlPrivate::InterfaceRegistration, &qmlInterface);
  318. }
  319. template<typename T>
  320. int qmlRegisterCustomType(const char *uri, int versionMajor, int versionMinor,
  321. const char *qmlName, QQmlCustomParser *parser)
  322. {
  323. QML_GETTYPENAMES
  324. QQmlPrivate::RegisterType type = {
  325. 0,
  326. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  327. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  328. sizeof(T), QQmlPrivate::createInto<T>,
  329. QString(),
  330. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  331. QQmlPrivate::attachedPropertiesFunc<T>(),
  332. QQmlPrivate::attachedPropertiesMetaObject<T>(),
  333. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  334. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  335. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  336. Q_NULLPTR, Q_NULLPTR,
  337. parser,
  338. 0
  339. };
  340. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  341. }
  342. template<typename T, typename E>
  343. int qmlRegisterCustomExtendedType(const char *uri, int versionMajor, int versionMinor,
  344. const char *qmlName, QQmlCustomParser *parser)
  345. {
  346. QML_GETTYPENAMES
  347. QQmlAttachedPropertiesFunc attached = QQmlPrivate::attachedPropertiesFunc<E>();
  348. const QMetaObject * attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<E>();
  349. if (!attached) {
  350. attached = QQmlPrivate::attachedPropertiesFunc<T>();
  351. attachedMetaObject = QQmlPrivate::attachedPropertiesMetaObject<T>();
  352. }
  353. QQmlPrivate::RegisterType type = {
  354. 0,
  355. qRegisterNormalizedMetaType<T *>(pointerName.constData()),
  356. qRegisterNormalizedMetaType<QQmlListProperty<T> >(listName.constData()),
  357. sizeof(T), QQmlPrivate::createInto<T>,
  358. QString(),
  359. uri, versionMajor, versionMinor, qmlName, &T::staticMetaObject,
  360. attached,
  361. attachedMetaObject,
  362. QQmlPrivate::StaticCastSelector<T,QQmlParserStatus>::cast(),
  363. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueSource>::cast(),
  364. QQmlPrivate::StaticCastSelector<T,QQmlPropertyValueInterceptor>::cast(),
  365. QQmlPrivate::createParent<E>, &E::staticMetaObject,
  366. parser,
  367. 0
  368. };
  369. return QQmlPrivate::qmlregister(QQmlPrivate::TypeRegistration, &type);
  370. }
  371. class QQmlContext;
  372. class QQmlEngine;
  373. class QJSValue;
  374. class QJSEngine;
  375. #ifndef Q_QDOC
  376. namespace QtQml {
  377. #endif
  378. // declared in namespace to avoid symbol conflicts with QtDeclarative
  379. Q_QML_EXPORT void qmlExecuteDeferred(QObject *);
  380. Q_QML_EXPORT QQmlContext *qmlContext(const QObject *);
  381. Q_QML_EXPORT QQmlEngine *qmlEngine(const QObject *);
  382. Q_QML_EXPORT QObject *qmlAttachedPropertiesObjectById(int, const QObject *, bool create = true);
  383. Q_QML_EXPORT QObject *qmlAttachedPropertiesObject(int *, const QObject *,
  384. const QMetaObject *, bool create);
  385. #ifndef Q_QDOC
  386. }
  387. #endif
  388. QT_WARNING_PUSH
  389. QT_WARNING_DISABLE_CLANG("-Wheader-hygiene")
  390. // This is necessary to allow for QtQuick1 and QtQuick2 scenes in a single application.
  391. using namespace QtQml;
  392. QT_WARNING_POP
  393. //The C++ version of protected namespaces in qmldir
  394. Q_QML_EXPORT bool qmlProtectModule(const char* uri, int majVersion);
  395. template<typename T>
  396. QObject *qmlAttachedPropertiesObject(const QObject *obj, bool create = true)
  397. {
  398. static int idx = -1;
  399. return qmlAttachedPropertiesObject(&idx, obj, &T::staticMetaObject, create);
  400. }
  401. Q_QML_EXPORT void qmlRegisterBaseTypes(const char *uri, int versionMajor, int versionMinor);
  402. inline int qmlRegisterSingletonType(const char *uri, int versionMajor, int versionMinor, const char *typeName,
  403. QJSValue (*callback)(QQmlEngine *, QJSEngine *))
  404. {
  405. QQmlPrivate::RegisterSingletonType api = {
  406. 0,
  407. uri, versionMajor, versionMinor, typeName,
  408. callback, Q_NULLPTR, Q_NULLPTR, 0, 0
  409. };
  410. return QQmlPrivate::qmlregister(QQmlPrivate::SingletonRegistration, &api);
  411. }
  412. enum { QmlCurrentSingletonTypeRegistrationVersion = 2 };
  413. template <typename T>
  414. inline int qmlRegisterSingletonType(const char *uri, int versionMajor, int versionMinor, const char *typeName,
  415. QObject *(*callback)(QQmlEngine *, QJSEngine *))
  416. {
  417. QML_GETTYPENAMES
  418. QQmlPrivate::RegisterSingletonType api = {
  419. QmlCurrentSingletonTypeRegistrationVersion,
  420. uri, versionMajor, versionMinor, typeName,
  421. Q_NULLPTR, callback, &T::staticMetaObject, qRegisterNormalizedMetaType<T *>(pointerName.constData()), 0
  422. };
  423. return QQmlPrivate::qmlregister(QQmlPrivate::SingletonRegistration, &api);
  424. }
  425. inline int qmlRegisterSingletonType(const QUrl &url, const char *uri, int versionMajor, int versionMinor, const char *qmlName)
  426. {
  427. if (url.isRelative()) {
  428. // User input check must go here, because QQmlPrivate::qmlregister is also used internally for composite types
  429. qWarning("qmlRegisterSingletonType requires absolute URLs.");
  430. return 0;
  431. }
  432. QQmlPrivate::RegisterCompositeSingletonType type = {
  433. url,
  434. uri,
  435. versionMajor,
  436. versionMinor,
  437. qmlName
  438. };
  439. return QQmlPrivate::qmlregister(QQmlPrivate::CompositeSingletonRegistration, &type);
  440. }
  441. inline int qmlRegisterType(const QUrl &url, const char *uri, int versionMajor, int versionMinor, const char *qmlName)
  442. {
  443. if (url.isRelative()) {
  444. // User input check must go here, because QQmlPrivate::qmlregister is also used internally for composite types
  445. qWarning("qmlRegisterType requires absolute URLs.");
  446. return 0;
  447. }
  448. QQmlPrivate::RegisterCompositeType type = {
  449. url,
  450. uri,
  451. versionMajor,
  452. versionMinor,
  453. qmlName
  454. };
  455. return QQmlPrivate::qmlregister(QQmlPrivate::CompositeRegistration, &type);
  456. }
  457. QT_END_NAMESPACE
  458. QML_DECLARE_TYPE(QObject)
  459. Q_DECLARE_METATYPE(QVariant)
  460. #endif // QQML_H