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, 280 insertions, 0 deletions

diff --git a/forms/source/xforms/collection.hxx b/forms/source/xforms/collection.hxx
new file mode 100644
index 000000000..00c7bdc39
--- /dev/null
+++ b/forms/source/xforms/collection.hxx
@@ -0,0 +1,280 @@
+/* -*- 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: */