Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 322 insertions, 0 deletions

diff --git a/include/comphelper/namedvaluecollection.hxx b/include/comphelper/namedvaluecollection.hxx
new file mode 100644
index 000000000..b92646e40
--- /dev/null
+++ b/include/comphelper/namedvaluecollection.hxx
@@ -0,0 +1,322 @@
+/* -*- 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_COMPHELPER_NAMEDVALUECOLLECTION_HXX
+#define INCLUDED_COMPHELPER_NAMEDVALUECOLLECTION_HXX
+
+#include <comphelper/comphelperdllapi.h>
+
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/beans/NamedValue.hpp>
+
+#include <vector>
+#include <unordered_map>
+
+namespace comphelper
+{
+
+
+    // = NamedValueCollection
+
+    /** a collection of named values, packed in various formats.
+    */
+    class COMPHELPER_DLLPUBLIC NamedValueCollection
+    {
+        std::unordered_map< OUString, css::uno::Any >  maValues;
+    public:
+        NamedValueCollection() = default;
+
+        NamedValueCollection( const NamedValueCollection& _rCopySource ) = default;
+        NamedValueCollection(NamedValueCollection&& _rCopySource) noexcept = default;
+
+        NamedValueCollection& operator=( const NamedValueCollection& i_rCopySource ) = default;
+        NamedValueCollection& operator=(NamedValueCollection&& i_rCopySource) noexcept = default;
+
+        /** constructs a collection
+            @param  _rElements
+                the wrapped elements of the collection. The @c Any might contain a sequence of
+                property values, a sequence of named values, or directly a property value or named value.
+                All other cases are worth an assertion in non-product builds.
+        */
+        NamedValueCollection( const css::uno::Any& _rElements );
+
+        /** constructs a collection
+            @param _rArguments
+                a sequence of Any's containing either PropertyValue's or NamedValue's.
+        */
+        NamedValueCollection( const css::uno::Sequence< css::uno::Any >& _rArguments );
+
+        /** constructs a collection
+            @param _rArguments
+                a sequence of PropertyValues's
+        */
+        NamedValueCollection( const css::uno::Sequence< css::beans::PropertyValue >& _rArguments );
+
+        /** constructs a collection
+            @param _rArguments
+                a sequence of NamedValue's
+        */
+        NamedValueCollection( const css::uno::Sequence< css::beans::NamedValue >& _rArguments );
+
+        void assign( const css::uno::Sequence< css::uno::Any >& _rArguments )
+        {
+            impl_assign( _rArguments );
+        }
+
+        void clear()
+        {
+            impl_assign( css::uno::Sequence< css::beans::NamedValue >() );
+        }
+
+        /** determines whether or not named values can be extracted from the given value
+
+            @return
+                true if and only if the given @c Any contains a @c NamedValue, a
+                @c PropertyValue, or a sequence thereof.
+        */
+        static bool canExtractFrom( css::uno::Any const & i_value );
+
+        /// returns the number of elements in the collection
+        size_t  size() const;
+
+        /// determines whether the collection is empty
+        bool    empty() const;
+
+        /** returns the names of all elements in the collection
+        */
+        ::std::vector< OUString >
+                getNames() const;
+
+        /** merges the content of another collection into @c this
+            @param _rAdditionalValues
+                the collection whose values are to be merged
+            @param _bOverwriteExisting
+                defines whether or not elements which are already present in @c this
+                should be overwritten (true) or preserved (false).
+            @return @c *this
+        */
+        NamedValueCollection&
+                merge(
+                    const NamedValueCollection& _rAdditionalValues,
+                    bool _bOverwriteExisting
+                );
+
+        /** retrieves a value with a given name from the collection, if it is present
+
+            @param _pAsciiValueName
+                the ASCII name of the value to retrieve
+
+            @param _out_rValue
+                is the output parameter taking the desired value upon successful return. If
+                a value with the given name is not present in the collection, or if a wrong-typed
+                value is present, then this parameter will not be touched.
+
+            @retval
+                true if there is a value with the given name, which could successfully
+                be extracted. In this case, @c _out_rValue will contain the requested
+                value.
+            @retval
+                false, if there is no value with the given name.
+
+            @throws IllegalArgumentException
+                in case there is a value with the given name, but it cannot legally assigned to
+                _out_rValue.
+        */
+        template < typename VALUE_TYPE >
+        bool get_ensureType( const OUString& _rValueName, VALUE_TYPE& _out_rValue ) const
+        {
+            return get_ensureType( _rValueName, &_out_rValue, ::cppu::UnoType< VALUE_TYPE >::get() );
+        }
+
+        /** retrieves a value with a given name, or defaults it to a given value, if it's not present
+            in the collection
+        */
+        template < typename VALUE_TYPE >
+        VALUE_TYPE  getOrDefault( const OUString& _rValueName, const VALUE_TYPE& _rDefault ) const
+        {
+            VALUE_TYPE retVal( _rDefault );
+            get_ensureType( _rValueName, retVal );
+            return retVal;
+        }
+
+        /** Retrieves a value with a given name, or defaults it to a given value, if it's not present
+            in the collection.
+            For when you only need a single value from a Sequence<PropertyValue>.
+        */
+        template < typename VALUE_TYPE >
+        static VALUE_TYPE  getOrDefault( const css::uno::Sequence<css::beans::PropertyValue> & rPropSeq,
+                    std::u16string_view _rValueName, const VALUE_TYPE& _rDefault )
+        {
+            VALUE_TYPE retVal( _rDefault );
+            get_ensureType( rPropSeq, _rValueName, &retVal, ::cppu::UnoType< VALUE_TYPE >::get() );
+            return retVal;
+        }
+
+        /** retrieves a (untyped) value with a given name
+
+            If the collection does not contain a value with the given name, an empty
+            Any is returned.
+        */
+        const css::uno::Any& get( const OUString& _rValueName ) const
+        {
+            return impl_get( _rValueName );
+        }
+
+        /** retrieves a (untyped) value with a given name. For when you only need a single value from a Sequence<PropertyValue>.
+
+            If the collection does not contain a value with the given name, an empty
+            Any is returned.
+        */
+        static const css::uno::Any& get( const css::uno::Sequence<css::beans::PropertyValue>& rPropSeq, std::u16string_view _rValueName );
+
+        /// determines whether a value with a given name is present in the collection
+        bool has( const OUString& _rValueName ) const
+        {
+            return impl_has( _rValueName );
+        }
+
+        /** puts a value into the collection
+
+            @return true if and only if a value was already present previously, in
+                which case it has been overwritten.
+        */
+        template < typename VALUE_TYPE >
+        bool put( const OUString& _rValueName, const VALUE_TYPE& _rValue )
+        {
+            return impl_put( _rValueName, css::uno::Any( _rValue ) );
+        }
+
+        bool put( const OUString& _rValueName, const css::uno::Any& _rValue )
+        {
+            return impl_put( _rValueName, _rValue );
+        }
+
+        /** removes the value with the given name from the collection
+
+            @return true if and only if a value with the given name existed in the collection.
+        */
+        bool remove( const OUString& _rValueName )
+        {
+            return impl_remove( _rValueName );
+        }
+
+        /** transforms the collection to a sequence of PropertyValues
+
+            @return
+                the number of elements in the sequence
+        */
+        sal_Int32 operator >>= ( css::uno::Sequence< css::beans::PropertyValue >& _out_rValues ) const;
+
+        /** transforms the collection to a sequence of NamedValues
+
+            @return
+                the number of elements in the sequence
+        */
+        sal_Int32 operator >>= ( css::uno::Sequence< css::beans::NamedValue >& _out_rValues ) const;
+
+        /** transforms the collection into a sequence of PropertyValues
+        */
+        css::uno::Sequence< css::beans::PropertyValue >
+                getPropertyValues() const
+        {
+            css::uno::Sequence< css::beans::PropertyValue > aValues;
+            *this >>= aValues;
+            return aValues;
+        }
+
+        /** returns a Sequence< Any >, containing PropertyValues
+        */
+        css::uno::Sequence< css::uno::Any >
+                getWrappedPropertyValues() const
+        {
+            return impl_wrap< css::beans::PropertyValue >();
+        }
+
+        /** returns a Sequence< Any >, containing NamedValues
+        */
+        css::uno::Sequence< css::uno::Any >
+                getWrappedNamedValues() const
+        {
+            return impl_wrap< css::beans::NamedValue >();
+        }
+
+        /** transforms the collection into a sequence of NamedValues
+        */
+        css::uno::Sequence< css::beans::NamedValue >
+                getNamedValues() const
+        {
+            css::uno::Sequence< css::beans::NamedValue > aValues;
+            *this >>= aValues;
+            return aValues;
+        }
+
+    private:
+        void    impl_assign( const css::uno::Any& i_rWrappedElements );
+        void    impl_assign( const css::uno::Sequence< css::uno::Any >& _rArguments );
+        void    impl_assign( const css::uno::Sequence< css::beans::PropertyValue >& _rArguments );
+        void    impl_assign( const css::uno::Sequence< css::beans::NamedValue >& _rArguments );
+
+        bool    get_ensureType(
+                    const OUString& _rValueName,
+                    void* _pValueLocation,
+                    const css::uno::Type& _rExpectedValueType
+                ) const;
+
+        static bool get_ensureType(
+                    const css::uno::Sequence<css::beans::PropertyValue> & rPropSeq,
+                    std::u16string_view _rValueName,
+                    void* _pValueLocation,
+                    const css::uno::Type& _rExpectedValueType
+                );
+
+        const css::uno::Any&
+                impl_get( const OUString& _rValueName ) const;
+
+        bool    impl_has( const OUString& _rValueName ) const;
+
+        bool    impl_put( const OUString& _rValueName, const css::uno::Any& _rValue );
+
+        bool    impl_remove( const OUString& _rValueName );
+
+        template< class VALUE_TYPE >
+        css::uno::Sequence< css::uno::Any > impl_wrap() const
+        {
+            css::uno::Sequence< VALUE_TYPE > aValues;
+            *this >>= aValues;
+            css::uno::Sequence< css::uno::Any > aWrappedValues( aValues.getLength() );
+
+            css::uno::Any* pO = aWrappedValues.getArray();
+            const VALUE_TYPE* pV = aValues.getConstArray();
+            const sal_Int32 nLen = aValues.getLength();
+            for( sal_Int32 i = 0; i < nLen; ++i )
+                *(pO++) = css::uno::Any( *(pV++) );
+
+            return aWrappedValues;
+        }
+    };
+
+
+} // namespace comphelper
+
+
+#endif // INCLUDED_COMPHELPER_NAMEDVALUECOLLECTION_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */