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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 .
+ */
+
+#pragma once
+
+#include "enumeration.hxx"
+
+#include <cppuhelper/implbase.hxx>
+#include <osl/diagnose.h>
+#include <com/sun/star/container/ElementExistException.hpp>
+#include <com/sun/star/container/NoSuchElementException.hpp>
+#include <com/sun/star/container/XEnumeration.hpp>
+#include <com/sun/star/container/XIndexReplace.hpp>
+#include <com/sun/star/container/XSet.hpp>
+#include <com/sun/star/container/XContainer.hpp>
+#include <com/sun/star/container/XContainerListener.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Type.hxx>
+#include <vector>
+
+
+typedef cppu::WeakImplHelper<
+ css::container::XIndexReplace,
+ css::container::XSet,
+ css::container::XContainer>
+Collection_t;
+
+template<class ELEMENT_TYPE>
+class Collection : public Collection_t
+{
+public:
+ typedef ELEMENT_TYPE T;
+ typedef std::vector<css::uno::Reference<css::container::XContainerListener> > Listeners_t;
+
+protected:
+ std::vector<T> maItems;
+ Listeners_t maListeners;
+
+public:
+
+ Collection() {}
+
+ const T& getItem( sal_Int32 n ) const
+ {
+ OSL_ENSURE( isValidIndex(n), "invalid index" );
+ OSL_ENSURE( isValid( maItems[n] ), "invalid item found" );
+ return maItems[n];
+ }
+
+ void setItem( sal_Int32 n, const T& t)
+ {
+ OSL_ENSURE( isValidIndex(n), "invalid index" );
+ OSL_ENSURE( isValid ( t ), "invalid item" );
+
+ T& aRef = maItems[ n ];
+ _elementReplaced( n, t );
+ _remove( aRef );
+ aRef = t;
+ _insert( t );
+ }
+
+ bool hasItem( const T& t ) const
+ {
+ return maItems.end() != std::find( maItems.begin(), maItems.end(), t );
+ }
+
+ sal_Int32 addItem( const T& t )
+ {
+ OSL_ENSURE( !hasItem( t ), "item to be added already present" );
+ OSL_ENSURE( isValid( t ), "invalid item" );
+
+ maItems.push_back( t );
+ _insert( t );
+ _elementInserted( maItems.size() - 1 );
+ return ( maItems.size() - 1 );
+ }
+
+ void removeItem( const T& t )
+ {
+ OSL_ENSURE( hasItem( t ), "item to be removed not present" );
+ OSL_ENSURE( isValid( t ), "an invalid item, funny that!" );
+
+ _elementRemoved( t );
+ _remove( t );
+ maItems.erase( std::find( maItems.begin(), maItems.end(), t ) );
+ }
+
+ bool hasItems() const
+ {
+ return maItems.size() != 0;
+ }
+
+ sal_Int32 countItems() const
+ {
+ return static_cast<sal_Int32>( maItems.size() );
+ }
+
+ bool isValidIndex( sal_Int32 n ) const
+ {
+ return n >= 0 && n < static_cast<sal_Int32>( maItems.size() );
+ }
+
+
+ // the following method may be overridden by sub-classes for
+ // customized behaviour
+
+ /// called before insertion to determine whether item is valid
+ virtual bool isValid( const T& ) const { return true; }
+
+
+protected:
+
+ // the following methods may be overridden by sub-classes for
+ // customized behaviour
+
+ /// called after item has been inserted into the collection
+ virtual void _insert( const T& ) { }
+
+ /// called before item is removed from the collection
+ virtual void _remove( const T& ) { }
+
+public:
+
+ // XElementAccess
+ virtual css::uno::Type SAL_CALL getElementType() override
+ {
+ return cppu::UnoType<T>::get();
+ }
+
+ virtual sal_Bool SAL_CALL hasElements() override
+ {
+ return hasItems();
+ }
+
+ // XIndexAccess : XElementAccess
+ virtual sal_Int32 SAL_CALL getCount() override
+ {
+ return countItems();
+ }
+
+ virtual css::uno::Any SAL_CALL getByIndex( sal_Int32 nIndex ) override
+ {
+ if( !isValidIndex( nIndex ) )
+ throw css::lang::IndexOutOfBoundsException();
+ return css::uno::Any( getItem( nIndex ) );
+ }
+
+ // XIndexReplace : XIndexAccess
+ virtual void SAL_CALL replaceByIndex( sal_Int32 nIndex,
+ const css::uno::Any& aElement ) override
+ {
+ T t;
+ if( !isValidIndex( nIndex) )
+ throw css::lang::IndexOutOfBoundsException();
+ if( !( aElement >>= t ) || !isValid( t ) )
+ throw css::lang::IllegalArgumentException();
+ setItem( nIndex, t );
+ }
+
+ // XEnumerationAccess : XElementAccess
+ virtual css::uno::Reference<css::container::XEnumeration> SAL_CALL createEnumeration() override
+ {
+ return new Enumeration( this );
+ }
+
+
+ // XSet : XEnumerationAccess
+ virtual sal_Bool SAL_CALL has( const css::uno::Any& aElement ) override
+ {
+ T t;
+ return ( aElement >>= t ) && hasItem( t );
+ }
+
+ virtual void SAL_CALL insert( const css::uno::Any& aElement ) override
+ {
+ T t;
+ if( !( aElement >>= t ) || !isValid( t ) )
+ throw css::lang::IllegalArgumentException();
+ if( hasItem( t ) )
+ throw css::container::ElementExistException();
+ addItem( t );
+ }
+
+ virtual void SAL_CALL remove( const css::uno::Any& aElement ) override
+ {
+ T t;
+ if( !(aElement >>= t) )
+ throw css::lang::IllegalArgumentException();
+ if( !hasItem( t ) )
+ throw css::container::NoSuchElementException();
+ removeItem( t );
+ }
+
+
+ // XContainer
+ virtual void SAL_CALL addContainerListener(
+ const css::uno::Reference<css::container::XContainerListener>& xListener ) override
+ {
+ OSL_ENSURE( xListener.is(), "need listener!" );
+ if( std::find( maListeners.begin(), maListeners.end(), xListener)
+ == maListeners.end() )
+ maListeners.push_back( xListener );
+ }
+
+ virtual void SAL_CALL removeContainerListener(
+ const css::uno::Reference<css::container::XContainerListener>& xListener ) override
+ {
+ OSL_ENSURE( xListener.is(), "need listener!" );
+ Listeners_t::iterator aIter =
+ std::find( maListeners.begin(), maListeners.end(), xListener );
+ if( aIter != maListeners.end() )
+ maListeners.erase( aIter );
+ }
+
+protected:
+
+ // call listeners:
+ void _elementInserted( sal_Int32 nPos )
+ {
+ OSL_ENSURE( isValidIndex(nPos), "invalid index" );
+ css::container::ContainerEvent aEvent(
+ static_cast<css::container::XIndexReplace*>( this ),
+ css::uno::Any( nPos ),
+ css::uno::Any( getItem( nPos ) ),
+ css::uno::Any() );
+ for (auto const& listener : maListeners)
+ {
+ listener->elementInserted( aEvent );
+ }
+ }
+
+ void _elementRemoved( const T& aOld )
+ {
+ css::container::ContainerEvent aEvent(
+ static_cast<css::container::XIndexReplace*>( this ),
+ css::uno::Any(),
+ css::uno::Any( aOld ),
+ css::uno::Any() );
+ for (auto const& listener : maListeners)
+ {
+ listener->elementRemoved( aEvent );
+ }
+ }
+
+ void _elementReplaced( const sal_Int32 nPos, const T& aNew )
+ {
+ OSL_ENSURE( isValidIndex(nPos), "invalid index" );
+ css::container::ContainerEvent aEvent(
+ static_cast<css::container::XIndexReplace*>( this ),
+ css::uno::Any( nPos ),
+ css::uno::Any( getItem( nPos ) ),
+ css::uno::Any( aNew ) );
+ for (auto const& listener : maListeners)
+ {
+ listener->elementReplaced( aEvent );
+ }
+ }
+
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 11:29:02 +0000