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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <unotools/accessiblestatesethelper.hxx>
+#include <tools/debug.hxx>
+
+// 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 ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+class AccessibleStateSetHelperImpl
+{
+public:
+ AccessibleStateSetHelperImpl();
+ AccessibleStateSetHelperImpl(const AccessibleStateSetHelperImpl& rImpl);
+
+ /// @throws uno::RuntimeException
+ bool IsEmpty () const;
+ /// @throws uno::RuntimeException
+ bool Contains (sal_Int16 aState) const;
+ /// @throws uno::RuntimeException
+ uno::Sequence<sal_Int16> GetStates() const;
+ /// @throws uno::RuntimeException
+ void AddState(sal_Int16 aState);
+ /// @throws uno::RuntimeException
+ void RemoveState(sal_Int16 aState);
+
+ inline void AddStates( const sal_Int64 _nStates );
+
+private:
+ sal_uInt64 maStates;
+};
+
+AccessibleStateSetHelperImpl::AccessibleStateSetHelperImpl()
+ : maStates(0)
+{
+}
+
+AccessibleStateSetHelperImpl::AccessibleStateSetHelperImpl(const AccessibleStateSetHelperImpl& rImpl)
+ : maStates(rImpl.maStates)
+{
+}
+
+inline bool AccessibleStateSetHelperImpl::IsEmpty () const
+{
+ return maStates == 0;
+}
+
+inline bool AccessibleStateSetHelperImpl::Contains (sal_Int16 aState) const
+{
+ DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small");
+ sal_uInt64 aTempBitSet(1);
+ aTempBitSet <<= aState;
+ return ((aTempBitSet & maStates) != 0);
+}
+
+inline uno::Sequence<sal_Int16> AccessibleStateSetHelperImpl::GetStates() const
+{
+ 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 )
+{
+ maStates |= _nStates;
+}
+
+inline void AccessibleStateSetHelperImpl::AddState(sal_Int16 aState)
+{
+ DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small");
+ sal_uInt64 aTempBitSet(1);
+ aTempBitSet <<= aState;
+ maStates |= aTempBitSet;
+}
+
+inline void AccessibleStateSetHelperImpl::RemoveState(sal_Int16 aState)
+{
+ DBG_ASSERT(aState < BITFIELDSIZE, "the statesset is too small");
+ sal_uInt64 aTempBitSet(1);
+ aTempBitSet <<= aState;
+ aTempBitSet = ~aTempBitSet;
+ maStates &= aTempBitSet;
+}
+
+//===== internal ============================================================
+
+AccessibleStateSetHelper::AccessibleStateSetHelper ()
+ : mpHelperImpl(new AccessibleStateSetHelperImpl)
+{
+}
+
+AccessibleStateSetHelper::AccessibleStateSetHelper ( const sal_Int64 _nInitialStates )
+ : mpHelperImpl(new AccessibleStateSetHelperImpl)
+{
+ mpHelperImpl->AddStates( _nInitialStates );
+}
+
+AccessibleStateSetHelper::AccessibleStateSetHelper (const AccessibleStateSetHelper& rHelper)
+ : cppu::WeakImplHelper<XAccessibleStateSet>(rHelper)
+{
+ if (rHelper.mpHelperImpl)
+ mpHelperImpl.reset(new AccessibleStateSetHelperImpl(*rHelper.mpHelperImpl));
+ else
+ mpHelperImpl.reset(new AccessibleStateSetHelperImpl());
+}
+
+AccessibleStateSetHelper::~AccessibleStateSetHelper()
+{
+}
+
+//===== 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 ()
+{
+ osl::MutexGuard 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 member of this object's
+ state set and <FALSE/> otherwise.
+ */
+sal_Bool SAL_CALL AccessibleStateSetHelper::contains (sal_Int16 aState)
+{
+ osl::MutexGuard 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)
+{
+ osl::MutexGuard aGuard (maMutex);
+ return std::all_of(rStateSet.begin(), rStateSet.end(),
+ [this](const sal_Int16 nState) { return mpHelperImpl->Contains(nState); });
+}
+
+uno::Sequence<sal_Int16> SAL_CALL AccessibleStateSetHelper::getStates()
+{
+ osl::MutexGuard aGuard(maMutex);
+ return mpHelperImpl->GetStates();
+}
+
+void AccessibleStateSetHelper::AddState(sal_Int16 aState)
+{
+ osl::MutexGuard aGuard (maMutex);
+ mpHelperImpl->AddState(aState);
+}
+
+void AccessibleStateSetHelper::RemoveState(sal_Int16 aState)
+{
+ osl::MutexGuard aGuard (maMutex);
+ mpHelperImpl->RemoveState(aState);
+}
+
+//===== XTypeProvider =======================================================
+
+uno::Sequence< css::uno::Type> AccessibleStateSetHelper::getTypes()
+{
+ css::uno::Sequence< css::uno::Type> aTypeSequence {
+ cppu::UnoType<XAccessibleStateSet>::get(),
+ cppu::UnoType<lang::XTypeProvider>::get()
+ };
+ return aTypeSequence;
+}
+
+uno::Sequence<sal_Int8> SAL_CALL AccessibleStateSetHelper::getImplementationId()
+{
+ return css::uno::Sequence<sal_Int8>();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */