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* Enable QArrayData to reference external array dataJoão Abecasis2012-01-163-4/+32
| | | | | | | | | | | | | | | | | | | | | | By default, QTypedArrayData::fromRawData provides the same semantics as already exist in QByteArray and QString (immutable, sharable data), but more combinations are possible. In particular, immutable-unsharable leaves the data owner in control of its lifetime by forcing deep copies. As part of this, a new isMutable property is introduced in QArrayData. This could be taken to be implicit in statics that are initialized with a proper size but with alloc set to 0. QStringLiteral and QByteLiteral already did this, forcing re-allocations on resize even before the (static, thus shared) ref-count is considered. The isMutable property detaches data mutability and shared status, which are orthogonal concepts (at least in the unshared state). For the time being, there is no API to explicitly (re)set mutability, but statics and RawData mark data immutable. Change-Id: I33a995a35e1c3d7a12391b1d7c36095aa28e221a Reviewed-by: Robin Burchell <robin+qt@viroteck.net> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Merge remote-tracking branch 'gerrit/master' into containersJoão Abecasis2012-01-16112-385/+406
|\ | | | | | | Change-Id: I2d358b912f1055ee6021d13de2f66fd459aaa355
| * Remove unused variableLars Knoll2012-01-161-2/+1
| | | | | | | | | | | | Change-Id: Ib8725e89e40d6e12172b1da687da2e4d559444f3 Reviewed-by: Robin Burchell <robin+qt@viroteck.net> Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
| * Fix ###'es in qrect.hLars Knoll2012-01-161-37/+14
| | | | | | | | | | | | Change-Id: Id9635b6faeaf12ba2f7a0f70055b0df01cd16587 Reviewed-by: João Abecasis <joao.abecasis@nokia.com> Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
| * Fix ### comments in QSetLars Knoll2012-01-161-14/+2
| | | | | | | | | | | | Change-Id: I302be7dc4cd7a9c2b9e35e8142ca100d6f86da7c Reviewed-by: Robin Burchell <robin+qt@viroteck.net> Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
| * Improve the documentation of QStringLiteralOlivier Goffart2012-01-161-3/+27
| | | | | | | | | | | | Change-Id: I4bbe18ecc342f034fbc8e9fd14b700ee5272076f Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com> Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
| * Build fix for WINCE to qlocale_tools.cppJanne Anttila2012-01-131-0/+4
| | | | | | | | | | | | | | Task-number: QTBUG-22500 Change-Id: If530799cf8ef971f5caf78d0c6dbeeda719d148f Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
| * Update year in Nokia copyright headers.Jason McDonald2012-01-106-6/+6
| | | | | | | | | | | | | | | | The previous change missed some headers from years prior to 2011, and a few new files were merged after the previous change. Change-Id: Ib7d1a2b7062228c2a5373da64242b2ee1f0981e1 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
| * Implement QDebug stream operators for builtin classesJędrzej Nowacki2012-01-106-0/+50
| | | | | | | | | | | | | | | | | | | | | | QDebug stream operator was added for: QPixmap, QImage, QUuid, QBitArray, QLocale, QRegExp, QCursor, QPalette, QTextFormat, QTextLength, QIcon and QSizePolicy Change-Id: Ibcf5c9b599ba322d53cb106d8e5e157427ebe757 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com>
| * Clean-up the interface for QDate.Xizhi Zhu2012-01-092-94/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Four overload functions removed while keeping source compatibility: - shortMonthName() - shortDayName() - longMonthName() - longDayName() Two functions removed since they have confusing names: - gregorianToJulian() - julianToGregorian() Change-Id: Iaaea066a3fb77b1ee3499d3049fcec5563054cdf Reviewed-by: Lars Knoll <lars.knoll@nokia.com> Reviewed-by: John Layt <jlayt@kde.org>
| * Remove the Q_TYPENAME define.Stephen Kelly2012-01-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | It is mostly not used (most places in Qt use typename directly), so is already not very useful. For example typename is used in: QDataStream& operator<<(QDataStream& s, const QVector<T>& v) Change-Id: I85337ad7d8d4ebbb424bfa2ab9a356456ff3e90f Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
| * Move keyboard locale and input direction to QInputPanelPekka Vuorela2012-01-071-2/+2
| | | | | | | | | | | | | | | | | | | | Deprecated QGuiApplication::keyboardInputLocale() and keyboardInputDirection(), introduced QInputPanel::locale() and inputDirection(). Change-Id: Ic48c77f10821a949751c73c73f22bd78e2192b9c Reviewed-by: Joona Petrell <joona.t.petrell@nokia.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
| * Remove all non-inline of qMalloc/qFree/qRealloc.Robin Burchell2012-01-066-42/+46
| | | | | | | | | | | | | | | | | | | | | | | | We're trying to deprecate these, so don't use them anymore. The inline uses of these have been left intact, for the moment. Inline code will need to create their own non-inline allocation methods (for future-proofing to allow alterations in how e.g. individual containers allocate) Change-Id: I1071a487c25e95b7bb81a3327b20c5481fb5ed22 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
| * Update copyright year in license headers.Jason McDonald2012-01-05106-106/+106
| | | | | | | | | | Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
| * Deinlined QLocale::operator==Denis Dzyubenko2012-01-042-6/+12
| | | | | | | | | | | | | | | | | | Some time ago this was a blocker that didn't allow to refactor QLocale implementation due without making binary incompatible changes. Deinlining those functions for Qt5, it shouldn't be performance critical code path. Change-Id: I6cb19e32188a2df223d04be0c613a6176ad8d118 Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
| * Implement (and unit test) simple QVarLengthArray::first()/last().Robin Burchell2012-01-022-0/+34
| | | | | | | | | | | | | | | | | | Pure syntactical sugar, to match up with what the other container classes offer. Change-Id: I0f97de011923d9d204cca0fa906b059dc5054a89 Reviewed-by: João Abecasis <joao.abecasis@nokia.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
| * QCryptographicHash: allow to hash the content of a QIODeviceSune Vuorela2011-12-222-0/+25
| | | | | | | | | | | | | | | | | | | | | | This adds a new function (and tests) to give the possibility of doing a QCryptographicHash of a QIODevice, like a QFile or whatever people needs. It is a quite handy overload in many cases. Change-Id: I22fd272f05571844641b3daefcc6746be4e5c7c3 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
| * Remove QT_NO_STL_WCHAR hackHarald Fernengel2011-12-221-18/+3
| | | | | | | | | | | | | | We don't support gcc 2.95 any more. Change-Id: I842f1f8ac64b9006516c104add0991830ac9a46a Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
| * Use strlen() inline whenever possibleHarald Fernengel2011-12-222-48/+55
| | | | | | | | | | | | | | This allows us to benefit from compile-time optimization Change-Id: I63dfde3758fcb0ff919fdc0418df1b7586da0b2f Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
| * make QString::fromLatin1 partially inlineHarald Fernengel2011-12-202-6/+6
| | | | | | | | | | | | | | | | This allows us to benefit from compile time optimizations when calling strlen() Change-Id: If6694117e613a012fce97f8664e6b43005d255de Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
| * Add QVarLengthArray::length().Robin Burchell2011-12-122-0/+8
| | | | | | | | | | | | | | | | | | | | | | This also adds a unit test for length()/count()/size(), since there wasn't one testing it explicitly. Change-Id: Ifb7f113aa97beef5f76e5fb246eb38495344b0ad Reviewed-by: João Abecasis <joao.abecasis@nokia.com> Reviewed-by: Marco Schmidt <Marco.Schmidt@Taugamma.de> Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | Use RefCount::setSharable feature in QVectorJoão Abecasis2012-01-102-25/+37
| | | | | | | | | | | | | | Note: This constitutes a break in Binary Compatibility. Change-Id: I050587901725b701f20dd46475ae48aec28aa54d Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | Add AllocateOptions to QArrayDataJoão Abecasis2012-01-093-13/+44
| | | | | | | | | | | | | | | | | | | | This approach is better for future ABI evolution than using individual bool parameters. QArrayData now also offers to calculate allocate options for typical detach and clone operations: the CapacityReserved flag is preserved, while cloning resets the Unsharable state. Change-Id: I256e135adcf27a52a5c7d6130069c35c8b946bc3 Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
* | Remove shared_empty and unsharable_empty from APIJoão Abecasis2012-01-063-26/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | They still exist and help avoid allocation of "empty" array headers, but they're no longer part of the public API, thus reducing relocatable symbols and relocations in inline code. This means an extra non-inline call on QArrayDataPointer::clear and setSharable operations, which are (expensive) detaching operations, anyway. Change-Id: Iea804e5ddc8af55ebc0951ca17a7a4e8401abc55 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | Add setSharable support in QArrayData stackJoão Abecasis2012-01-065-15/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Making use of the same feature added in RefCount. To keep with the intention of avoiding the allocation of "empty" array headers, this introduces an unsharable_empty, which allows users to maintain the "unsharable bit" on empty containers, without imposing any actual allocations. (Before anyone asks, there is no point to a zero-sized capacity-reserved container so no other combinations are needed for now.) Change-Id: Icaa40ac3100ad954fdc20dee0c991861136a5b19 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | Adding detach to QArrayDataPointerJoão Abecasis2012-01-061-0/+24
| | | | | | | | | | | | | | | | Detaching operations added to SimpleVector Change-Id: I5f549582cf579569f08cb8d53a6d12fe32b862e6 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | Ensure shared_null(s) are statically initialized on VS 2010João Abecasis2012-01-055-43/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes const qualification on data members of QConst*Data, which was subjecting QString's and QByteArray's shared_null to the "order of static initialization fiasco", with up-to-date VS 2010. Furthermore, the const qualification in the places where it was removed had little meaning and no value. It was unnecessary. As such, "Const" was removed from the struct's names and "Static" used in its place, to imply their usefulness in supporting statically-initialized fixed-size (string and byte) containers. A test case was added to QArrayData as that is meant to replace both QStringData and QByteArrayData in the near future. VS issue reported at: https://connect.microsoft.com/VisualStudio/feedback/details/716461 Change-Id: I3d86f2a387a68f359bb3d8f4d10cf3da51c6ecf7 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | Add support for setSharable in RefCountJoão Abecasis2012-01-051-3/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A reference count of 0 (zero) would never change. RefCount::deref to zero would return false (resource should be freed), subsequent calls on the same state would return true and not change state. While safe from RefCount's side, calling deref on a reference count of zero potentially indicated a dangling reference. With this change, a reference count of 0 is now abused to imply a non-sharable instance (cf. QVector::setSharable). This instance is to be deleted upon deref(), as the data is not shared and has a single owner. In practice, this means an (intentional) change in behaviour in that deref'ing zero still won't change state, but will return false, turning previous access to dangling references into double free errors. Users of RefCount wanting to support non-sharable instances are required to check the return of RefCount::ref() and use RefCount::isShared() to determine whether to detach (instead of directly checking count == 1). New functions are introduced to determine whether RefCount indicates a "Static" (permanent, typically read-only) or "Sharable" instance and whether the instance is currently "Shared" and requires detaching prior to accepting modifications.. This change formalizes -1 as the value used to flag persistent, read-only instances, no longer reserving the full negative domain. The concrete value is part of the ABI, but not of the API. (isStatic and Q_REFCOUNT_INITIALIZE_STATIC are part of the API, instead) Change-Id: I9a63c844155319bef0411e02b47f9d92476afefe Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
* | Retire the generic Q_REFCOUNT_INITIALIZER macroJoão Abecasis2012-01-0412-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | This was only being used to initialize static read-only RefCount instances, where the value is hard-wired to -1. Instead of allowing initialization with arbitrary values (which for a reference count can be error prone) the intent of the macro is made explicit with its replacement Q_REFCOUNT_INITIALIZE_STATIC. Change-Id: I5b0f3f1eb58c3d010e49e9259ff4d06cbab2fd35 Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* | Get rid of assignment operators in RefCountJoão Abecasis2012-01-049-30/+28
| | | | | | | | | | | | | | | | | | | | | | | | , and make it strictly a POD struct. Since this operator was only being used to set the initial (owned) value of the reference count, the name of the function introduced here to replace it makes that use case explicit. Change-Id: I2feadd2ac35dcb75ca211471baf5044a5f57cd62 Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | Introducing QArrayDataPointerJoão Abecasis2011-12-141-0/+161
| | | | | | | | | | | | | | | | | | | | | | This class provides RAII functionality for handling QArrayData pointers. Together with QArrayDataHeader and QArrayDataOps, this offers common boilerplate code for implementing a container which, itself, defines its own interface. Change-Id: If38eba22fbe8f69038a06fff4acb50af434d229e Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | QArrayDataOps::insertJoão Abecasis2011-12-141-0/+142
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Inserting elements anywhere in the array requires moving the elements that follow out of the way and writing in the new ones. Trivial for PODs and almost as much for movable types. For "complex" types, we start by extending the array with placement new and copy constructing elements. Then, copy assignment resets the elements that were previously part of the array. QPodArrayOps uses non-throwing operations. QMovableArrayOps provides full rollback in the face of exceptions (strong guarantee). QGenericArrayOps enforces that no data is leaked (all destructors called) and invariants are maintained on exceptions -- the basic guarantee. With 3 different implementations, 2 of which are non-trivial, this operation is a good showcase for QArrayOpsSelector and the different implementations. As such, it warrants its own commit. Change-Id: I21d9b4cb8e810db82623bcd1d78f583ebf3b6cb7 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | QArrayDataOps: generic array operationsJoão Abecasis2011-12-142-0/+183
| | | | | | | | | | | | | | | | | | | | | | | | | | This class, the selector and underlying implementations provide specialized operations on QArrayData, while allowing for optimized implementations that benefit from type-specific information. Currently, offering a generic implementation and specializations for PODs (trivial ctor, dtor and move operations) and movable types (can be trivially moved in memory). Change-Id: I2c5829b66c2aea79f12f21debe5c01f7104c7ea3 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | template<class T> struct QTypedArrayDataJoão Abecasis2011-12-111-0/+42
| | | | | | | | | | | | | | | | | | | | QTypedArrayData is a typed overlay for QArrayData, providing convenience and type-safety. It adds no data members to QArrayData, thus avoiding compiler-generated warnings for aliasing issues when casting back and forth. Change-Id: I969342a30989c4c14b3d03d0602e3d60a4cc0e9d Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
* | Allocate/free support in QArrayDataJoão Abecasis2011-12-092-0/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Centralizing QArrayData memory management decisions in one place will allow us to be smarter in how we allocate header and data. At the moment, these are allocated as a single block. In the future we may decide to allocate them separately for "large" data or specific alignment requirements. For users of QArrayData this remains transparent and not part of the ABI. The offset field in QArrayDataHeader enables this. This also hard-wires allocation of empty arrays to return shared_empty. Allocating detached headers (e.g., to support fromRawData) will thus require explicit support. Change-Id: Icac5a1f51ee7e468c76b4493d29debc18780e5dc Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* | Merge remote-tracking branch 'gerrit/master' into containersOswald Buddenhagen2011-12-092-12/+0
|\| | | | | | | Change-Id: I01f94564c17d68872839be5396c24b661e53d571
| * Remove unused QMapData::createData()/node_create() overloads.Robin Burchell2011-12-082-12/+0
| | | | | | | | | | | | | | Change-Id: I79010e1ecfdfe579d996db65681ab1559598f3ce Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: João Abecasis <joao.abecasis@nokia.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* | Introducing QArrayDataJoão Abecasis2011-12-063-0/+148
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | Modeled on QByteArrayData/QStringData/QVectorData, the intent is to unify book-keeping structs for array-like data and enable sharing of code among them. As in those structures, size (and alloc) data member(s) specify the number of *typed* elements the array does (and can) hold. The size or alignment requirements of those objects is not tracked in this data structure and needs to be maintained by its users. Contrary to QByteArrayData and QStringData, QArrayData's offset member keeps a *byte* offset to the actual data array and is computed from the beginning of the struct. Shared-null and -empty functionality is provided by QArrayData and shared among all users. Planned features include setSharable (force deep copies), fromRawData (detached header and data allocations) and literals a la QStringLiteral (static immutable instances), thus covering the functionality needed for QByteArray, QString and QVector. Change-Id: I9aa709dbb675442e6d06965efb8138ab84602bbd Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* QByteArray: Fix MSVC warning.Friedemann Kleint2011-11-291-2/+2
| | | | | | | | Warning C4308: negative integral constant converted to unsigned type. Change-Id: Ibdb14ad2ceebd56715fda861151e92f6dc10f955 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Give better error message when using unsupported lookbehinds in QRegExpKjell Rune Skaaraas2011-11-181-0/+4
| | | | | | | Merge-request: 1456 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com> (cherry picked from commit e0383c9b8bd6f4e3d445d69690f84209cad42bb5) Change-Id: Ie0383c9b8bd6f4e3d445d69690f84209cad42bb5
* adding a getter cubicBezierSpline() to QEasingCurveThomas Hartmann2011-11-182-0/+13
| | | | | Change-Id: Ida722f013613d8633867a902660da30d28aeb918 Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>
* Windows: Adapt mkspec for MinGW / gcc 4.6.Friedemann Kleint2011-11-181-0/+7
| | | | | | | | | | | gcc 4.6 becomes the minimum required version in Qt 5. See also d4150975af620e2889cc58bd476bac6b4d101db3 in Qt 4.8. Change-Id: If66ce0be755263c20b0a4371523c6590592d962d Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com> Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
* Fix tst_Moc::oldStyleCastsOlivier Goffart2011-11-171-2/+2
| | | | | | | | | This tests that the moc generated file produces no warnings with very pedentic compilation flags. In that case, there was a warning because of the use of the C casts Change-Id: Ie79c6d053ff35c55276a07212c5d60f759f693ee Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
* avoid type aliasingThomas Hartmann2011-11-111-9/+30
| | | | | | | | | | | | | | | | | For -O2 gcc activates -fstrict-aliasing. As a result the compiler is allowed to assume that pt[1]=px[1]/3+B1 does not affect t. Therefore the result of _fast_cbrt() was always 0. Using a union for casting avoids this issue. For more details see: http://labs.qt.nokia.com/2011/06/10/type-punning-and-strict-aliasing Also the updated code respect endianness. Change-Id: Id4bed16efac52e494e7357dc2f23f94e8c525df1 Reviewed-by: Olivier Goffart <ogoffart@woboq.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Revert "Use standard spelling for two languages"Lars Knoll2011-11-042-49/+49
| | | | | | | | | | | This reverts commit 9358f7eaa4b773bdbfa45b08ab92a89096954881. The change is source incompatible and hasn't been agreed upon. Revert it even though it's correct in principle. It's simple to keep the old enums around for compatibility. Change-Id: I8d9d33868e44d0299a3f081833b06cedf0ed4345 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Use standard spelling for two languagesJiang Jiang2011-11-042-49/+49
| | | | | | | | Singhalese -> Sinhalese Divehi -> Dhivehi Change-Id: I3faa7163202a4a9be14e3cf857da60aa4dd3196f Reviewed-by: Jiang Jiang <jiang.jiang@nokia.com>
* Adding custom bezier easing curves to QEasingCurveThomas Hartmann2011-11-022-6/+541
| | | | | | | | | | | | | | | | | | | | | | | | | I added the possibilty to define Bezier/TCB splines and use them as custom easing curves. Note: Splines have a parametric definition. This means we have a function/polynom of t that evalutes to x and y. x/y = f(t). For our purpose we actually need the function y = f(x). So as a first step we have to solve the solution x = f(t) for a given t and then in a second step we evaluate y = f(t). f(t) is a cubic polynom so we use cardanos formula to solve this equation directly. For the casus irreducibilis we need 3 functions that are a combination of arcos and cos. Instead of evaluating arcos and cos we approximate these functions directly. TCB splines are converted into the corresponding cubic bezier spline. Change-Id: Id2afc15efac92e494d6358dc2e11f94e8c524da1 Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>
* Replace implicit QAtomic* casts with explicit load()/store()Bradley T. Hughes2011-10-272-6/+7
| | | | | Change-Id: Ia7ef1a8e01001f203e409c710c977d6f4686342e Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Add QDataStream operators to QMargins, so it can be streamedSteven Ceuppens2011-10-272-0/+49
| | | | | | | | | | * QDataStream format documented * Added Unit test for QDataStream operators * Updated Unit test Change-Id: Idbcfcb0b927e6369e8d31b57693c7aa0d1a154e7 Reviewed-by: Olivier Goffart <ogoffart@kde.org>
* replace 'const QChar &' with 'QChar ' for QChar and QStringRitt Konstantin2011-10-265-50/+50
| | | | | | | | Merge-request: 69 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com> Change-Id: I61f5a54b783252029fcad95677958fa6a2130d01 Reviewed-by: Olivier Goffart <ogoffart@kde.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 10:40:00 +0000