/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/

#include <vbalistcontrolhelper.hxx>
#include <vector>

using namespace com::sun::star;
using namespace ooo::vba;

const static rtl::OUString ITEMS( RTL_CONSTASCII_USTRINGPARAM("StringItemList") );

void SAL_CALL 
ListControlHelper::AddItem( const uno::Any& pvargItem, const uno::Any& pvargIndex ) throw (uno::RuntimeException)
{
	if ( pvargItem.hasValue()  )
	{
		uno::Sequence< rtl::OUString > sList;
		m_xProps->getPropertyValue( ITEMS ) >>= sList;

		sal_Int32 nIndex = sList.getLength();

		if ( pvargIndex.hasValue() )
			pvargIndex >>= nIndex;

		rtl::OUString sString = getAnyAsString( pvargItem );

		// if no index specified or item is to be appended to end of 
		// list just realloc the array and set the last item
		if ( nIndex  == sList.getLength() )
		{
			sal_Int32 nOldSize = sList.getLength();
			sList.realloc( nOldSize + 1 );
			sList[ nOldSize ] = sString; 
		}
		else
		{
			// just copy those elements above the one to be inserted
			std::vector< rtl::OUString > sVec;
			// reserve just the amount we need to copy
			sVec.reserve( sList.getLength() - nIndex );

			// point at first element to copy
			rtl::OUString* pString = sList.getArray() + nIndex;
			const rtl::OUString* pEndString = sList.getArray() + sList.getLength();
			// insert the new element
			sVec.push_back( sString );
			// copy elements	
			for ( ; pString != pEndString; ++pString )
				sVec.push_back( *pString );
		
			sList.realloc(  sList.getLength() + 1 );

			// point at first element to be overwritten
			pString = sList.getArray() + nIndex;
			pEndString = sList.getArray() + sList.getLength();
			std::vector< rtl::OUString >::iterator it = sVec.begin();
			for ( ; pString != pEndString; ++pString, ++it)
				*pString = *it;	
			//
		}

		m_xProps->setPropertyValue( ITEMS, uno::makeAny( sList ) );
		
	}
}

void SAL_CALL 
ListControlHelper::removeItem( const uno::Any& index ) throw (uno::RuntimeException)
{
    sal_Int32 nIndex = 0;
    // for int index
	if ( index >>= nIndex  )
	{
		uno::Sequence< rtl::OUString > sList;
		m_xProps->getPropertyValue( ITEMS ) >>= sList;
        if( nIndex < 0 || nIndex > ( sList.getLength() - 1 ) )
            throw uno::RuntimeException( rtl::OUString::createFromAscii( "Invalid index" ), uno::Reference< uno::XInterface > () );
        if( sList.hasElements() )
        {
            if( sList.getLength() == 1 )
            {
                Clear();
                return;
            }
            for( sal_Int32 i = nIndex; i < ( sList.getLength()-1 ); i++ )
            {
                sList[i] = sList[i+1];
            }
			sList.realloc(  sList.getLength() - 1 );
		}

		m_xProps->setPropertyValue( ITEMS, uno::makeAny( sList ) );
	}
}

void SAL_CALL 
ListControlHelper::Clear(  ) throw (uno::RuntimeException)
{
	// urk, setValue doesn't seem to work !!
	//setValue( uno::makeAny( sal_Int16() ) );
	m_xProps->setPropertyValue( ITEMS, uno::makeAny( uno::Sequence< rtl::OUString >() ) );
}

void SAL_CALL
ListControlHelper::setRowSource( const rtl::OUString& _rowsource ) throw (uno::RuntimeException)
{
	if ( _rowsource.getLength() == 0 )
		Clear();
}

sal_Int32 SAL_CALL
ListControlHelper::getListCount() throw (uno::RuntimeException)
{
    uno::Sequence< rtl::OUString > sList;
    m_xProps->getPropertyValue( ITEMS ) >>= sList;
    return sList.getLength();
}

uno::Any SAL_CALL 
ListControlHelper::List( const ::uno::Any& pvargIndex, const uno::Any& pvarColumn ) throw (uno::RuntimeException)
{
    uno::Sequence< rtl::OUString > sList;
    m_xProps->getPropertyValue( ITEMS ) >>= sList;
    sal_Int16 nLength = static_cast< sal_Int16 >( sList.getLength() );
    uno::Any aRet;
    if ( pvargIndex.hasValue() )
    {
        sal_Int16 nIndex = -1;
        pvargIndex >>= nIndex;
        if( nIndex < 0 || nIndex >= nLength )
            throw uno::RuntimeException( rtl::OUString::createFromAscii(
                    "Bad row Index" ), uno::Reference< uno::XInterface >() );       
        aRet <<= sList[ nIndex ];
    }
    else if ( pvarColumn.hasValue() ) // pvarColumn on its own would be bad
            throw uno::RuntimeException( rtl::OUString::createFromAscii(
                    "Bad column Index" ), uno::Reference< uno::XInterface >() );       
    else // List() ( e.g. no args )
    {
        uno::Sequence< uno::Sequence< rtl::OUString > > sReturnArray( nLength );
        for ( sal_Int32 i = 0; i < nLength; ++i )
        {
            sReturnArray[ i ].realloc( 10 );
            sReturnArray[ i ][ 0 ] = sList[ i ];
        }        
        aRet = uno::makeAny( sReturnArray );
    }
    return aRet;
}