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Diffstat (limited to 'unotools/source/accessibility/accessiblestatesethelper.cxx')
| -rw-r--r-- | unotools/source/accessibility/accessiblestatesethelper.cxx | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/unotools/source/accessibility/accessiblestatesethelper.cxx b/unotools/source/accessibility/accessiblestatesethelper.cxx new file mode 100644 index 000000000000..be7bf3fbeb28 --- /dev/null +++ b/unotools/source/accessibility/accessiblestatesethelper.cxx @@ -0,0 +1,346 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_unotools.hxx" + + +#include "unotools/accessiblestatesethelper.hxx" +#include <rtl/uuid.h> +#include <tools/debug.hxx> + +#if 0 +#include <bitset> +#endif + +// defines how many states the bitfield can contain +// it has the size of 64 because I use a uInt64 +#define BITFIELDSIZE 64 + +using namespace ::utl; +using namespace ::rtl; +using namespace ::com::sun::star; +using namespace ::com::sun::star::accessibility; + +class AccessibleStateSetHelperImpl +{ +public: + AccessibleStateSetHelperImpl(); + AccessibleStateSetHelperImpl(const AccessibleStateSetHelperImpl& rImpl); + ~AccessibleStateSetHelperImpl(); + + sal_Bool IsEmpty () + throw (uno::RuntimeException); + sal_Bool Contains (sal_Int16 aState) + throw (uno::RuntimeException); + uno::Sequence<sal_Int16> GetStates() + throw (uno::RuntimeException); + void AddState(sal_Int16 aState) + throw (uno::RuntimeException); + void RemoveState(sal_Int16 aState) + throw (uno::RuntimeException); + sal_Bool Compare(const AccessibleStateSetHelperImpl* pComparativeValue, + AccessibleStateSetHelperImpl* pOldStates, + AccessibleStateSetHelperImpl* pNewStates) + throw (uno::RuntimeException); + + inline void AddStates( const sal_Int64 _nStates ) SAL_THROW( ( ) ); + +private: +#if 0 + ::std::bitset<BITFIELDSIZE> maStates; //Bitfield +#endif + sal_uInt64 maStates; +}; + +AccessibleStateSetHelperImpl::AccessibleStateSetHelperImpl() + : maStates(0) +{ +} + +AccessibleStateSetHelperImpl::AccessibleStateSetHelperImpl(const AccessibleStateSetHelperImpl& rImpl) + : maStates(rImpl.maStates) +{ +} + +AccessibleStateSetHelperImpl::~AccessibleStateSetHelperImpl() +{ +} + +inline sal_Bool AccessibleStateSetHelperImpl::IsEmpty () + throw (uno::RuntimeException) +{ +#if 0 + return maStates.none(); +#endif + return maStates == 0; +} + +inline sal_Bool AccessibleStateSetHelperImpl::Contains (sal_Int16 aState) + throw (uno::RuntimeException) +{ + DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small"); +#if 0 + return maStates.test(aState); +#endif + sal_uInt64 aTempBitSet(1); + aTempBitSet <<= aState; + return ((aTempBitSet & maStates) != 0); +} + +inline uno::Sequence<sal_Int16> AccessibleStateSetHelperImpl::GetStates() + throw (uno::RuntimeException) +{ + uno::Sequence<sal_Int16> aRet(BITFIELDSIZE); + sal_Int16* pSeq = aRet.getArray(); + sal_Int16 nStateCount(0); + for (sal_Int16 i = 0; i < BITFIELDSIZE; ++i) + if (Contains(i)) + { + *pSeq = i; + ++pSeq; + ++nStateCount; + } + aRet.realloc(nStateCount); + return aRet; +} + +inline void AccessibleStateSetHelperImpl::AddStates( const sal_Int64 _nStates ) SAL_THROW( ( ) ) +{ + maStates |= _nStates; +} + +inline void AccessibleStateSetHelperImpl::AddState(sal_Int16 aState) + throw (uno::RuntimeException) +{ + DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small"); +#if 0 + maStates.set(aState); +#endif + sal_uInt64 aTempBitSet(1); + aTempBitSet <<= aState; + maStates |= aTempBitSet; +} + +inline void AccessibleStateSetHelperImpl::RemoveState(sal_Int16 aState) + throw (uno::RuntimeException) +{ + DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small"); +#if 0 + maStates.set(aState, 0); +#endif + sal_uInt64 aTempBitSet(1); + aTempBitSet <<= aState; + aTempBitSet = ~aTempBitSet; + maStates &= aTempBitSet; +} + +inline sal_Bool AccessibleStateSetHelperImpl::Compare( + const AccessibleStateSetHelperImpl* pComparativeValue, + AccessibleStateSetHelperImpl* pOldStates, + AccessibleStateSetHelperImpl* pNewStates) + throw (uno::RuntimeException) +{ + sal_Bool bResult(sal_False); + if (pComparativeValue && pOldStates && pNewStates) + { + if (maStates == pComparativeValue->maStates) + bResult = sal_True; + else + { +#if 0 + std::bitset<BITFIELDSIZE> aTempBitSet(maStates); +#endif + sal_uInt64 aTempBitSet(maStates); + aTempBitSet ^= pComparativeValue->maStates; + pOldStates->maStates = aTempBitSet; + pOldStates->maStates &= maStates; + pNewStates->maStates = aTempBitSet; + pNewStates->maStates &= pComparativeValue->maStates; + } + } + return bResult; +} + + +//===== internal ============================================================ + +AccessibleStateSetHelper::AccessibleStateSetHelper () + : mpHelperImpl(NULL) +{ + mpHelperImpl = new AccessibleStateSetHelperImpl(); +} + +AccessibleStateSetHelper::AccessibleStateSetHelper ( const sal_Int64 _nInitialStates ) + : mpHelperImpl(NULL) +{ + mpHelperImpl = new AccessibleStateSetHelperImpl(); + mpHelperImpl->AddStates( _nInitialStates ); +} + +AccessibleStateSetHelper::AccessibleStateSetHelper (const AccessibleStateSetHelper& rHelper) + : cppu::WeakImplHelper1<XAccessibleStateSet>() + , mpHelperImpl(NULL) +{ + if (rHelper.mpHelperImpl) + mpHelperImpl = new AccessibleStateSetHelperImpl(*rHelper.mpHelperImpl); + else + mpHelperImpl = new AccessibleStateSetHelperImpl(); +} + +AccessibleStateSetHelper::~AccessibleStateSetHelper(void) +{ + delete mpHelperImpl; +} + +//===== XAccessibleStateSet ============================================== + + /** Checks whether the current state set is empty. + + @return + Returns <TRUE/> if there is no state in this state set and + <FALSE/> if there is at least one state set in it. + */ +sal_Bool SAL_CALL AccessibleStateSetHelper::isEmpty () + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + return mpHelperImpl->IsEmpty(); +} + + /** Checks if the given state is a member of the state set of this + object. + + @param aState + The state for which to check membership. This has to be one of + the constants of <type>AccessibleStateType</type>. + + @return + Returns <TRUE/> if the given state is a memeber of this object's + state set and <FALSE/> otherwise. + */ +sal_Bool SAL_CALL AccessibleStateSetHelper::contains (sal_Int16 aState) + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + return mpHelperImpl->Contains(aState); +} + + /** Checks if all of the given states are in this object's state + set. + + @param aStateSet + This sequence of states is interpreted as set and every of its + members, duplicates are ignored, is checked for membership in + this object's state set. Each state has to be one of the + constants of <type>AccessibleStateType</type>. + + @return + Returns <TRUE/> if all states of the given state set are members + of this object's state set. <FALSE/> is returned if at least + one of the states in the given state is not a member of this + object's state set. + */ +sal_Bool SAL_CALL AccessibleStateSetHelper::containsAll + (const uno::Sequence<sal_Int16>& rStateSet) + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + sal_Int32 nCount(rStateSet.getLength()); + const sal_Int16* pStates = rStateSet.getConstArray(); + sal_Int32 i = 0; + sal_Bool bFound(sal_True); + while (i < nCount) + { + bFound = mpHelperImpl->Contains(pStates[i]); + i++; + } + return bFound; +} + +uno::Sequence<sal_Int16> SAL_CALL AccessibleStateSetHelper::getStates() + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard(maMutex); + return mpHelperImpl->GetStates(); +} + +void AccessibleStateSetHelper::AddState(sal_Int16 aState) + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + mpHelperImpl->AddState(aState); +} + +void AccessibleStateSetHelper::RemoveState(sal_Int16 aState) + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + mpHelperImpl->RemoveState(aState); +} + +sal_Bool AccessibleStateSetHelper::Compare( + const AccessibleStateSetHelper& rComparativeValue, + AccessibleStateSetHelper& rOldStates, + AccessibleStateSetHelper& rNewStates) + throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + return mpHelperImpl->Compare(rComparativeValue.mpHelperImpl, + rOldStates.mpHelperImpl, rNewStates.mpHelperImpl); +} + +//===== XTypeProvider ======================================================= + +uno::Sequence< ::com::sun::star::uno::Type> + AccessibleStateSetHelper::getTypes (void) + throw (::com::sun::star::uno::RuntimeException) +{ + const ::com::sun::star::uno::Type aTypeList[] = { + ::getCppuType((const uno::Reference< + XAccessibleStateSet>*)0), + ::getCppuType((const uno::Reference< + lang::XTypeProvider>*)0) + }; + ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> + aTypeSequence (aTypeList, 2); + return aTypeSequence; +} + +uno::Sequence<sal_Int8> SAL_CALL + AccessibleStateSetHelper::getImplementationId (void) + throw (::com::sun::star::uno::RuntimeException) +{ + ::vos::OGuard aGuard (maMutex); + static uno::Sequence<sal_Int8> aId; + if (aId.getLength() == 0) + { + aId.realloc (16); + rtl_createUuid ((sal_uInt8 *)aId.getArray(), 0, sal_True); + } + return aId; +} |