shapelist.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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 */
 
#include <svx/svdobj.hxx>
#include <osl/diagnose.h>
#include <shapelist.hxx>
 
#include <algorithm>
 
using namespace sd;
 
ShapeList::ShapeList()
{
    maIter = maShapeList.end();
}
 
ShapeList::~ShapeList()
{
    clear();
}
 
void ShapeList::addShape( SdrObject& rObject )
{
    ListImpl::iterator aIter( std::find( maShapeList.begin(), maShapeList.end(), &rObject ) );
    if( aIter == maShapeList.end() )
    {
        maShapeList.push_back(&rObject);
        rObject.AddObjectUser( *this );
    }
    else
    {
        OSL_FAIL("sd::ShapeList::addShape(), given shape already part of list!");
    }
}
 
void ShapeList::removeShape( SdrObject& rObject )
{
    ListImpl::iterator aIter( std::find( maShapeList.begin(), maShapeList.end(), &rObject ) );
    if( aIter != maShapeList.end() )
    {
        bool bIterErased = aIter == maIter;
 
        (*aIter)->RemoveObjectUser(*this);
        aIter = maShapeList.erase( aIter );
 
        if( bIterErased )
            maIter = aIter;
    }
    else
    {
        OSL_FAIL("sd::ShapeList::removeShape(), given shape not part of list!");
    }
}
 
void ShapeList::clear()
{
    ListImpl aShapeList;
    aShapeList.swap( maShapeList );
 
    for( auto& rpShape : aShapeList )
        rpShape->RemoveObjectUser(*this);
 
    maIter = maShapeList.end();
}
 
bool ShapeList::isEmpty() const
{
    return maShapeList.empty();
}
 
bool ShapeList::hasShape( SdrObject& rObject ) const
{
    return std::find( maShapeList.begin(), maShapeList.end(), &rObject )  != maShapeList.end();
}
 
void ShapeList::ObjectInDestruction(const SdrObject& rObject)
{
    ListImpl::iterator aIter( std::find( maShapeList.begin(), maShapeList.end(), &rObject ) );
    if( aIter != maShapeList.end() )
    {
        bool bIterErased = aIter == maIter;
 
        aIter = maShapeList.erase( aIter );
 
        if( bIterErased )
            maIter = aIter;
    }
    else
    {
        OSL_FAIL("sd::ShapeList::ObjectInDestruction(), got a call from an unknown friend!");
    }
}
 
SdrObject* ShapeList::getNextShape()
{
    if( maIter != maShapeList.end() )
    {
        return (*maIter++);
    }
    else
    {
        return nullptr;
    }
}
 
void ShapeList::seekShape( sal_uInt32 nIndex )
{
    maIter = maShapeList.begin();
    nIndex = std::min(nIndex, static_cast<sal_uInt32>(maShapeList.size()));
    std::advance(maIter, nIndex);
}
 
bool ShapeList::hasMore() const
{
    return maIter != maShapeList.end();
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */