/usr/include/akonadi/item.h is in kdepimlibs5-dev 4:4.14.10-1ubuntu7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 | /*
Copyright (c) 2006 Volker Krause <vkrause@kde.org>
2007 Till Adam <adam@kde.org>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#ifndef AKONADI_ITEM_H
#define AKONADI_ITEM_H
#include "akonadi_export.h"
#include <akonadi/entity.h>
#include <akonadi/exception.h>
#include <akonadi/tag.h>
#include <akonadi/collection.h>
#include "itempayloadinternals_p.h"
#include <QtCore/QByteArray>
#include <QtCore/QMetaType>
#include <QtCore/QSet>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_pointer.hpp>
#include <boost/utility/enable_if.hpp>
#include <typeinfo>
#include <memory>
class KUrl;
template <typename T>
class QVector;
namespace Akonadi {
class ItemPrivate;
/**
* @short Represents a PIM item stored in Akonadi storage.
*
* A PIM item consists of one or more parts, allowing a fine-grained access on its
* content where needed (eg. mail envelope, mail body and attachments).
*
* There is also a namespace (prefix) for special parts which are local to Akonadi.
* These parts, prefixed by "akonadi-", will never be fetched in the resource.
* They are useful for local extensions like agents which might want to add meta data
* to items in order to handle them but the meta data should not be stored back to the
* resource.
*
* This class is implicitly shared.
*
* <h4>Payload</h4>
*
* This class contains, beside some type-agnostic information (flags, revision),
* zero or more payload objects representing its actual data. Which objects these actually
* are depends on the mimetype of the item and the corresponding serializer plugin(s).
*
* Technically the only restriction on payload objects is that they have to be copyable.
* For safety reasons, pointer payloads are forbidden as well though, as the
* ownership would not be clear. In this case, usage of a shared pointer is
* recommended (such as boost::shared_ptr or QSharedPointer).
*
* Using a shared pointer is also required in case the payload is a polymorphic
* type. For supported shared pointer types implicit casting is provided when possible.
*
* When using a value-based class as payload, it is recommended to use one that does
* support implicit sharing as setting and retrieving a payload as well as copying
* an Akonadi::Item object imply copying of the payload object.
*
* Since KDE 4.6, Item supports multiple payload types per mime type,
* and will automatically convert between them using the serialiser
* plugins (which is slow). It also supports mixing shared pointer
* types, e.g. inserting a boost::shared_ptr<Foo> and extracting a
* QSharedPointer<Foo>. Since the two shared pointer types cannot
* share ownership of the same object, the payload class @c T needs to
* provide a @c clone() method with the usual signature, ie.
*
* @code
* virtual T * T::clone() const
* @endcode
*
* If the class that does not have a @c clone() method, asking for an
* incompatible shared pointer will throw a PayloadException.
*
* Since using different shared pointer types and different payload
* types for the same mimetype incurs slow conversions (between
* payload types) and cloning (between shared pointer types), as well
* as manifold memory usage (results of conversions are cached inside
* the Item, and only destroyed when a new payload is set by the user
* of the class), you want to restrict yourself to just one type and
* one shared pointer type. This mechanism was mainly introduced for
* backwards compatibility (e.g., putting in a
* boost::shared_ptr<KCal::Incidence> and extracting a
* QSharedPointer<KCalCore::Incidence>), so it is not optimized for
* performance.
*
* The availability of a payload of a specific type can be checked using hasPayload(),
* payloads can be retrieved by using payload() and set by using setPayload(). Refer
* to the documentation of those methods for more details.
*
* @author Volker Krause <vkrause@kde.org>, Till Adam <adam@kde.org>, Marc Mutz <mutz@kde.org>
*/
class AKONADI_EXPORT Item : public Entity
{
public:
/**
* Describes a list of items.
*/
typedef QList<Item> List;
/**
* Describes a flag name.
*/
typedef QByteArray Flag;
/**
* Describes a set of flag names.
*/
typedef QSet<QByteArray> Flags;
/**
* Describes the part name that is used to fetch the
* full payload of an item.
*/
static const char *FullPayload;
/**
* Creates a new item.
*/
Item();
/**
* Creates a new item with the given unique @p id.
*/
explicit Item(Id id);
/**
* Creates a new item with the given mime type.
*
* @param mimeType The mime type of the item.
*/
explicit Item(const QString &mimeType);
/**
* Creates a new item from an @p other item.
*/
Item(const Item &other);
/**
* Destroys the item.
*/
~Item();
/**
* Creates an item from the given @p url.
*/
static Item fromUrl(const KUrl &url);
/**
* Returns all flags of this item.
*/
Flags flags() const;
/**
* Returns the timestamp of the last modification of this item.
* @since 4.2
*/
QDateTime modificationTime() const;
/**
* Sets the timestamp of the last modification of this item.
* @param datetime the modification time to set
* @note Do not modify this value from within an application,
* it is updated automatically by the revision checking functions.
* @since 4.2
*/
void setModificationTime(const QDateTime &datetime);
/**
* Returns whether the flag with the given @p name is
* set in the item.
*/
bool hasFlag(const QByteArray &name) const;
/**
* Sets the flag with the given @p name in the item.
*/
void setFlag(const QByteArray &name);
/**
* Removes the flag with the given @p name from the item.
*/
void clearFlag(const QByteArray &name);
/**
* Overwrites all flags of the item by the given @p flags.
*/
void setFlags(const Flags &flags);
/**
* Removes all flags from the item.
*/
void clearFlags();
void setTags(const Tag::List &list);
void setTag(const Tag &tag);
Tag::List tags() const;
bool hasTag(const Tag &tag) const;
void clearTag(const Tag &tag);
void clearTags();
/**
* Sets the payload based on the canonical representation normally
* used for data of this mime type.
*
* @param data The encoded data.
* @see fullPayloadData
*/
void setPayloadFromData(const QByteArray &data);
/**
* Returns the full payload in its canonical representation, e.g. the
* binary or textual format usually used for data with this mime type.
* This is useful when communicating with non-Akonadi application by
* e.g. drag&drop, copy&paste or stored files.
*/
QByteArray payloadData() const;
/**
* Returns the list of loaded payload parts. This is not necessarily
* identical to all parts in the cache or to all available parts on the backend.
*/
QSet<QByteArray> loadedPayloadParts() const;
/**
* Marks that the payload shall be cleared from the cache when this
* item is passed to an ItemModifyJob the next time.
* This will trigger a refetch of the payload from the backend when the
* item is accessed afterwards. Only resources should have a need for
* this functionality.
*
* @since 4.5
*/
void clearPayload();
/**
* Sets the @p revision number of the item.
* @param revision the revision number to set
* @note Do not modify this value from within an application,
* it is updated automatically by the revision checking functions.
*/
void setRevision(int revision);
/**
* Returns the revision number of the item.
*/
int revision() const;
/**
* Returns the unique identifier of the collection this item is stored in. There is only
* a single such collection, although the item can be linked into arbitrary many
* virtual collections.
* Calling this method makes sense only after running an ItemFetchJob on the item.
* @returns the collection ID if it is known, -1 otherwise.
* @since 4.3
*/
Entity::Id storageCollectionId() const;
/**
* Set the size of the item in bytes.
* @param size the size of the item in bytes
* @since 4.2
*/
void setSize(qint64 size);
/**
* Returns the size of the items in bytes.
*
* @since 4.2
*/
qint64 size() const;
/**
* Sets the mime type of the item to @p mimeType.
*/
void setMimeType(const QString &mimeType);
/**
* Returns the mime type of the item.
*/
QString mimeType() const;
/**
* Sets the @p gid of the entity.
*
* @since 4.12
*/
void setGid(const QString &gid);
/**
* Returns the gid of the entity.
*
* @since 4.12
*/
QString gid() const;
/**
* Sets the virtual @p collections that this item is linked into.
*
* @note Note that changing this value makes no effect on what collections
* this item is linked to. To link or unlink an item to/from a virtual
* collection, use LinkJob and UnlinkJob.
*
* @since 4.14
*/
void setVirtualReferences(const Collection::List &collections);
/**
* Lists virtual collections that this item is linked to.
*
* @note This value is populated only when this item was retrieved by
* ItemFetchJob with fetchVirtualReferences set to true in ItemFetchScope,
* otherwise this list is always empty.
*
* @since 4.14
*/
Collection::List virtualReferences() const;
/**
* Returns a list of metatype-ids, describing the different
* variants of payload that are currently contained in this item.
*
* The result is always sorted (increasing ids).
*/
QVector<int> availablePayloadMetaTypeIds() const;
/**
* Sets the payload object of this PIM item.
*
* @param p The payload object. Must be copyable and must not be a pointer,
* will cause a compilation failure otherwise. Using a type that can be copied
* fast (such as implicitly shared classes) is recommended.
* If the payload type is polymorphic and you intend to set and retrieve payload
* objects with mismatching but castable types, make sure to use a supported
* shared pointer implementation (currently boost::shared_ptr and QSharedPointer)
* and make sure there is a specialization of Akonadi::super_trait for your class.
*/
template <typename T> void setPayload(const T &p);
//@cond PRIVATE
template <typename T> void setPayload(T *p);
template <typename T> void setPayload(std::auto_ptr<T> p);
//@endcond
/**
* Returns the payload object of this PIM item. This method will only succeed if either
* you requested the exact same payload type that was put in or the payload uses a
* supported shared pointer type (currently boost::shared_ptr and QSharedPointer), and
* is castable to the requested type. For this to work there needs to be a specialization
* of Akonadi::super_trait of the used classes.
*
* If a mismatching or non-castable payload type is requested, an Akonadi::PayloadException
* is thrown. Therefore it is generally recommended to guard calls to payload() with a
* corresponding hasPayload() call.
*
* Trying to retrieve a pointer type will fail to compile.
*/
template <typename T> T payload() const;
/**
* Returns whether the item has a payload object.
*/
bool hasPayload() const;
/**
* Returns whether the item has a payload of type @c T.
* This method will only return @c true if either you requested the exact same payload type
* that was put in or the payload uses a supported shared pointer type (currently boost::shared_ptr
* and QSharedPointer), and is castable to the requested type. For this to work there needs
* to be a specialization of Akonadi::super_trait of the used classes.
*
* Trying to retrieve a pointer type will fail to compile.
*/
template <typename T> bool hasPayload() const;
/**
* Describes the type of url which is returned in url().
*/
enum UrlType {
UrlShort = 0, ///< A short url which contains the identifier only (default)
UrlWithMimeType = 1 ///< A url with identifier and mimetype
};
/**
* Returns the url of the item.
*/
KUrl url(UrlType type = UrlShort) const;
/**
* Returns the parts available for this item.
*
* The returned set refers to parts available on the akonadi server or remotely,
* but does not include the loadedPayloadParts() of this item.
*
* @since 4.4
*/
QSet<QByteArray> availablePayloadParts() const;
/**
* Returns the parts available for this item in the cache. The list might be a subset
* of the actual parts in cache, as it contains only the requested parts. See @see ItemFetchJob and
* @see ItemFetchScope
*
* The returned set refers to parts available on the akonadi server.
*
* @since 4.11
*/
QSet<QByteArray> cachedPayloadParts() const;
/**
* Applies the parts of Item @p other to this item.
* Any parts or attributes available in other, will be applied to this item,
* and the payload parts of other will be inserted into this item, overwriting
* any existing parts with the same part name.
*
* If there is an ItemSerialzerPluginV2 for the type, the merge method in that plugin is
* used to perform the merge. If only an ItemSerialzerPlugin class is found, or the merge
* method of the -V2 plugin is not implemented, the merge is performed with multiple deserializations
* of the payload.
* @param other the item to get values from
* @since 4.4
*/
void apply(const Item &other);
/**
* Registers \a T as a legacy type for mime type \a mimeType.
*
* This is required information for Item to return the correct
* type from payload() when clients have not been recompiled to
* use the new code.
* @param mimeType the mimeType to register
* @since 4.6
*/
template <typename T> static void addToLegacyMapping(const QString &mimeType);
void setCachedPayloadParts(const QSet<QByteArray> &cachedParts);
private:
//@cond PRIVATE
friend class ItemCreateJob;
friend class ItemModifyJob;
friend class ItemModifyJobPrivate;
friend class ItemSync;
friend class ProtocolHelper;
PayloadBase *payloadBase() const;
void setPayloadBase(PayloadBase *p);
PayloadBase *payloadBaseV2(int sharedPointerId, int metaTypeId) const;
//std::auto_ptr<PayloadBase> takePayloadBase( int sharedPointerId, int metaTypeId );
void setPayloadBaseV2(int sharedPointerId, int metaTypeId, std::auto_ptr<PayloadBase> p);
void addPayloadBaseVariant(int sharedPointerId, int metaTypeId, std::auto_ptr<PayloadBase> p) const;
static void addToLegacyMappingImpl(const QString &mimeType, int sharedPointerId, int metaTypeId, std::auto_ptr<PayloadBase> p);
/**
* Try to ensure that we have a variant of the payload for metatype id @a mtid.
* @return @c true if a type exists or could be created through conversion, @c false otherwise.
*/
bool ensureMetaTypeId(int mtid) const;
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic, void>::type
setPayloadImpl(const T &p, const int * /*disambiguate*/ = 0);
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic, void>::type
setPayloadImpl(const T &p);
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic, T>::type
payloadImpl(const int * /*disambiguate*/ = 0) const;
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic, T>::type
payloadImpl() const;
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic, bool>::type
hasPayloadImpl(const int * /*disambiguate*/ = 0) const;
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic, bool>::type
hasPayloadImpl() const;
template <typename T>
typename boost::enable_if<Internal::is_shared_pointer<T>, bool>::type
tryToClone(T *ret, const int * /*disambiguate*/ = 0) const;
template <typename T>
typename boost::disable_if<Internal::is_shared_pointer<T>, bool>::type
tryToClone(T *) const;
/**
* Set the collection ID to where the item is stored in. Should be set only by the ItemFetchJob.
* @param collectionId the unique identifier of the collection where this item is stored in.
* @since 4.3
*/
void setStorageCollectionId(Entity::Id collectionId);
#if 0
/**
* Helper function for non-template throwing of PayloadException.
*/
QString payloadExceptionText(int spid, int mtid) const;
/**
* Non-template throwing of PayloadException.
* Needs to be inline, otherwise catch (Akonadi::PayloadException)
* won't work (only catch (Akonadi::Exception))
*/
inline void throwPayloadException(int spid, int mtid) const {
throw PayloadException(payloadExceptionText(spid, mtid));
}
#else
void throwPayloadException(int spid, int mtid) const;
#endif
//@endcond
AKONADI_DECLARE_PRIVATE(Item)
};
template <typename T>
T Item::payload() const
{
BOOST_STATIC_ASSERT(!boost::is_pointer<T>::value);
if (!hasPayload()) {
throwPayloadException(-1, -1);
}
return payloadImpl<T>();
}
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic, T>::type
Item::payloadImpl(const int *) const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((PayloadType::isPolymorphic));
typedef typename Internal::get_hierarchy_root<T>::type Root_T;
typedef Internal::PayloadTrait<Root_T> RootType;
BOOST_STATIC_ASSERT((!RootType::isPolymorphic)); // prevent endless recursion
return PayloadType::castFrom(payloadImpl<Root_T>());
}
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic, T>::type
Item::payloadImpl() const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((!PayloadType::isPolymorphic));
const int metaTypeId = PayloadType::elementMetaTypeId();
// make sure that we have a payload format represented by 'metaTypeId':
if (!ensureMetaTypeId(metaTypeId)) {
throwPayloadException(PayloadType::sharedPointerId, metaTypeId);
}
// Check whether we have the exact payload
// (metatype id and shared pointer type match)
if (const Payload<T> *const p = Internal::payload_cast<T>(payloadBaseV2(PayloadType::sharedPointerId, metaTypeId))) {
return p->payload;
}
T ret;
if (!tryToClone<T>(&ret)) {
throwPayloadException(PayloadType::sharedPointerId, metaTypeId);
}
return ret;
}
template <typename T>
typename boost::enable_if<Internal::is_shared_pointer<T>, bool>::type
Item::tryToClone(T *ret, const int *) const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((!PayloadType::isPolymorphic));
const int metaTypeId = PayloadType::elementMetaTypeId();
// Check whether we have the same payload in 'the other
// shared pointer' (### make it recurse, trying to find one, but
// don't introduce infinite recursion):
typedef typename Internal::shared_pointer_traits<T>::next_shared_ptr NewT;
typedef Internal::PayloadTrait<NewT> NewPayloadType;
if (const Payload<NewT> *const p = Internal::payload_cast<NewT>(payloadBaseV2(NewPayloadType::sharedPointerId, metaTypeId))) {
// If found, attempt to make a clone (required the payload to provide virtual T * T::clone() const)
const T nt = PayloadType::clone(p->payload);
if (!PayloadType::isNull(nt)) {
// if clone succeeded, add the clone to the Item:
std::auto_ptr<PayloadBase> npb(new Payload<T>(nt));
addPayloadBaseVariant(PayloadType::sharedPointerId, metaTypeId, npb);
// and return it
if (ret) {
*ret = nt;
}
return true;
}
}
return false;
}
template <typename T>
typename boost::disable_if<Internal::is_shared_pointer<T>, bool>::type
Item::tryToClone(T *) const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((!PayloadType::isPolymorphic));
return false;
}
template <typename T>
bool Item::hasPayload() const
{
BOOST_STATIC_ASSERT(!boost::is_pointer<T>::value);
return hasPayload() && hasPayloadImpl<T>();
}
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic, bool>::type
Item::hasPayloadImpl(const int *) const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((PayloadType::isPolymorphic));
typedef typename Internal::get_hierarchy_root<T>::type Root_T;
typedef Internal::PayloadTrait<Root_T> RootType;
BOOST_STATIC_ASSERT((!RootType::isPolymorphic)); // prevent endless recursion
try {
return hasPayloadImpl<Root_T>()
&& PayloadType::canCastFrom(payload<Root_T>());
} catch (const Akonadi::PayloadException &) {
return false;
}
}
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic, bool>::type
Item::hasPayloadImpl() const
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((!PayloadType::isPolymorphic));
const int metaTypeId = PayloadType::elementMetaTypeId();
// make sure that we have a payload format represented by 'metaTypeId':
if (!ensureMetaTypeId(metaTypeId)) {
return false;
}
// Check whether we have the exact payload
// (metatype id and shared pointer type match)
if (const Payload<T> *const p = Internal::payload_cast<T>(payloadBaseV2(PayloadType::sharedPointerId, metaTypeId))) {
return true;
}
return tryToClone<T>(0);
}
template <typename T>
void Item::setPayload(const T &p)
{
BOOST_STATIC_ASSERT((!boost::is_pointer<T>::value));
setPayloadImpl(p);
}
template <typename T>
typename boost::enable_if_c<Internal::PayloadTrait<T>::isPolymorphic>::type
Item::setPayloadImpl(const T &p, const int *)
{
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((PayloadType::isPolymorphic));
typedef typename Internal::get_hierarchy_root<T>::type Root_T;
typedef Internal::PayloadTrait<Root_T> RootType;
BOOST_STATIC_ASSERT((!RootType::isPolymorphic)); // prevent endless recursion
setPayloadImpl<Root_T>(p);
}
template <typename T>
typename boost::disable_if_c<Internal::PayloadTrait<T>::isPolymorphic>::type
Item::setPayloadImpl(const T &p)
{
typedef Internal::PayloadTrait<T> PayloadType;
std::auto_ptr<PayloadBase> pb(new Payload<T>(p));
setPayloadBaseV2(PayloadType::sharedPointerId,
PayloadType::elementMetaTypeId(),
pb);
}
template <typename T>
void Item::setPayload(T *p)
{
p->You_MUST_NOT_use_a_pointer_as_payload;
}
template <typename T>
void Item::setPayload(std::auto_ptr<T> p)
{
p.Nice_try_but_a_std_auto_ptr_is_not_allowed_as_payload_either;
}
template <typename T>
void Item::addToLegacyMapping(const QString &mimeType) {
typedef Internal::PayloadTrait<T> PayloadType;
BOOST_STATIC_ASSERT((!PayloadType::isPolymorphic));
std::auto_ptr<PayloadBase> p(new Payload<T>);
addToLegacyMappingImpl(mimeType, PayloadType::sharedPointerId, PayloadType::elementMetaTypeId(), p);
}
}
Q_DECLARE_METATYPE(Akonadi::Item)
Q_DECLARE_METATYPE(Akonadi::Item::List)
#endif
|