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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 .
+ */
+
+#ifndef INCLUDED_OOX_HELPER_REFVECTOR_HXX
+#define INCLUDED_OOX_HELPER_REFVECTOR_HXX
+
+#include <algorithm>
+#include <functional>
+#include <memory>
+#include <vector>
+
+#include <sal/types.h>
+
+namespace oox {
+
+
+/** Template for a vector of ref-counted objects with additional accessor functions.
+
+ An instance of the class RefVector< Type > stores elements of the type
+ std::shared_ptr< Type >. The new accessor functions has() and get()
+ work correctly for indexes out of the current range, there is no need to
+ check the passed index before.
+ */
+template< typename ObjType >
+class RefVector : public ::std::vector< std::shared_ptr< ObjType > >
+{
+public:
+ typedef ::std::vector< std::shared_ptr< ObjType > > container_type;
+ typedef typename container_type::value_type value_type;
+ typedef typename container_type::size_type size_type;
+
+public:
+
+ /** Returns a reference to the object with the passed index, or 0 on error. */
+ value_type get( sal_Int32 nIndex ) const
+ {
+ if( const value_type* pxRef = getRef( nIndex ) ) return *pxRef;
+ return value_type();
+ }
+
+ /** Calls the passed functor for every contained object, automatically
+ skips all elements that are empty references. */
+ template< typename FunctorType >
+ void forEach( FunctorType aFunctor ) const
+ {
+ ::std::for_each( this->begin(), this->end(), ForEachFunctor< FunctorType >( aFunctor ) );
+ }
+
+ /** Calls the passed member function of ObjType on every contained object,
+ automatically skips all elements that are empty references. */
+ template< typename FuncType >
+ void forEachMem( FuncType pFunc ) const
+ {
+ forEach( ::std::bind( pFunc, std::placeholders::_1 ) );
+ }
+
+ /** Calls the passed member function of ObjType on every contained object,
+ automatically skips all elements that are empty references. */
+ template< typename FuncType, typename ParamType >
+ void forEachMem( FuncType pFunc, ParamType aParam ) const
+ {
+ forEach( ::std::bind( pFunc, std::placeholders::_1, aParam ) );
+ }
+
+ /** Calls the passed member function of ObjType on every contained object,
+ automatically skips all elements that are empty references. */
+ template< typename FuncType, typename ParamType1, typename ParamType2 >
+ void forEachMem( FuncType pFunc, ParamType1 aParam1, ParamType2 aParam2 ) const
+ {
+ forEach( ::std::bind( pFunc, std::placeholders::_1, aParam1, aParam2 ) );
+ }
+
+ /** Calls the passed member function of ObjType on every contained object,
+ automatically skips all elements that are empty references. */
+ template< typename FuncType, typename ParamType1, typename ParamType2, typename ParamType3 >
+ void forEachMem( FuncType pFunc, ParamType1 aParam1, ParamType2 aParam2, ParamType3 aParam3 ) const
+ {
+ forEach( ::std::bind( pFunc, std::placeholders::_1, aParam1, aParam2, aParam3 ) );
+ }
+
+ /** Calls the passed functor for every contained object. Passes the index as
+ first argument and the object reference as second argument to rFunctor. */
+ template< typename FunctorType >
+ void forEachWithIndex( const FunctorType& rFunctor ) const
+ {
+ ::std::for_each( this->begin(), this->end(), ForEachFunctorWithIndex< FunctorType >( rFunctor ) );
+ }
+
+ /** Calls the passed member function of ObjType on every contained object.
+ Passes the vector index as first argument to the member function. */
+ template< typename FuncType, typename ParamType1, typename ParamType2 >
+ void forEachMemWithIndex( FuncType pFunc, ParamType1 aParam1, ParamType2 aParam2 ) const
+ {
+ forEachWithIndex( ::std::bind( pFunc, std::placeholders::_2, std::placeholders::_1, aParam1, aParam2 ) );
+ }
+
+ /** Searches for an element by using the passed functor that takes a
+ constant reference of the object type (const ObjType&). */
+ template< typename FunctorType >
+ value_type findIf( const FunctorType& rFunctor ) const
+ {
+ typename container_type::const_iterator aIt = ::std::find_if( this->begin(), this->end(), FindFunctor< FunctorType >( rFunctor ) );
+ return (aIt == this->end()) ? value_type() : *aIt;
+ }
+
+private:
+ template< typename FunctorType >
+ struct ForEachFunctor
+ {
+ FunctorType maFunctor;
+ explicit ForEachFunctor( const FunctorType& rFunctor ) : maFunctor( rFunctor ) {}
+ void operator()( const value_type& rxValue ) { if( rxValue.get() ) maFunctor( *rxValue ); }
+ };
+
+ template< typename FunctorType >
+ struct ForEachFunctorWithIndex
+ {
+ FunctorType maFunctor;
+ sal_Int32 mnIndex;
+ explicit ForEachFunctorWithIndex( const FunctorType& rFunctor ) : maFunctor( rFunctor ), mnIndex( 0 ) {}
+ void operator()( const value_type& rxValue ) {
+ if( rxValue.get() ) maFunctor( mnIndex, *rxValue );
+ ++mnIndex;
+ }
+ };
+
+ template< typename FunctorType >
+ struct FindFunctor
+ {
+ FunctorType maFunctor;
+ explicit FindFunctor( const FunctorType& rFunctor ) : maFunctor( rFunctor ) {}
+ bool operator()( const value_type& rxValue ) { return rxValue.get() && maFunctor( *rxValue ); }
+ };
+
+ const value_type* getRef( sal_Int32 nIndex ) const
+ {
+ return ((0 <= nIndex) && (static_cast< size_type >( nIndex ) < this->size())) ?
+ &(*this)[ static_cast< size_type >( nIndex ) ] : 0;
+ }
+};
+
+
+} // namespace oox
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */