/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: svx_unoshcol.cxx,v $
 * $Revision: 1.4 $
 *
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 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
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#ifndef _COM_SUN_STAR_DOCUMENT_EVENTOBJECT_HPP_ 
#include <com/sun/star/document/EventObject.hpp>
#endif

#include "unoshcol.hxx"
#include "unoprov.hxx"
namespace binfilter {

using namespace ::rtl;
using namespace ::cppu;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::drawing;

/***********************************************************************
*                                                                      *
***********************************************************************/
SvxShapeCollection::SvxShapeCollection() throw()
: maShapeContainer( maMutex ), mrBHelper( maMutex )
{
}

//----------------------------------------------------------------------
SvxShapeCollection::~SvxShapeCollection() throw()
{
}


//----------------------------------------------------------------------
Reference< uno::XInterface > SvxShapeCollection_NewInstance() throw()
{
	Reference< drawing::XShapes > xShapes( new SvxShapeCollection() );
	Reference< uno::XInterface > xRef( xShapes, UNO_QUERY );
	return xRef;
}

// XInterface
void SvxShapeCollection::release() throw()
{
	uno::Reference< uno::XInterface > x( xDelegator );
	if (! x.is())
	{
		if (osl_decrementInterlockedCount( &m_refCount ) == 0)
		{
			if (! mrBHelper.bDisposed)
			{
				uno::Reference< uno::XInterface > xHoldAlive( (uno::XWeak*)this );
				// First dispose
				try
				{
					dispose();
				}
				catch(::com::sun::star::uno::Exception&)
				{
					// release should not throw exceptions
				}
				
				// only the alive ref holds the object
				OSL_ASSERT( m_refCount == 1 );
				// destroy the object if xHoldAlive decrement the refcount to 0
				return;
			}
		}
		// restore the reference count
		osl_incrementInterlockedCount( &m_refCount );
	}
	OWeakAggObject::release();
}

// XComponent
void SvxShapeCollection::disposing() throw()
{
	maShapeContainer.clear();
}

// XComponent
void SvxShapeCollection::dispose()
	throw(::com::sun::star::uno::RuntimeException)
{
	// An frequently programming error is to release the last
	// reference to this object in the disposing message.
	// Make it rubust, hold a self Reference.
	uno::Reference< lang::XComponent > xSelf( this );

	// Guard dispose against multible threading
	// Remark: It is an error to call dispose more than once
	sal_Bool bDoDispose = sal_False;
	{
	osl::MutexGuard aGuard( mrBHelper.rMutex );
	if( !mrBHelper.bDisposed && !mrBHelper.bInDispose )
	{
		// only one call go into this section
		mrBHelper.bInDispose = sal_True;
		bDoDispose = sal_True;
	}
	}

	// Do not hold the mutex because we are broadcasting
	if( bDoDispose )
	{
		// Create an event with this as sender
		try
		{
			uno::Reference< uno::XInterface > xSource( uno::Reference< uno::XInterface >::query( (lang::XComponent *)this ) );
			document::EventObject aEvt;
			aEvt.Source = xSource;
			// inform all listeners to release this object
			// The listener container are automaticly cleared
			mrBHelper.aLC.disposeAndClear( aEvt );
			// notify subclasses to do their dispose
			disposing();
		}
		catch(::com::sun::star::uno::Exception& e)
		{
			// catch exception and throw again but signal that
			// the object was disposed. Dispose should be called 
			// only once. 
			mrBHelper.bDisposed = sal_True;
			mrBHelper.bInDispose = sal_False;
			throw e;
		}
		
		// the values bDispose and bInDisposing must set in this order. 
		// No multithread call overcome the "!rBHelper.bDisposed && !rBHelper.bInDispose" guard.
		mrBHelper.bDisposed = sal_True;
		mrBHelper.bInDispose = sal_False;
	}
	else
	{
		// in a multithreaded environment, it can't be avoided, that dispose is called twice.
		// However this condition is traced, because it MAY indicate an error.
		OSL_TRACE( "OComponentHelper::dispose() - dispose called twice" );
	}
}

// XComponent
void SAL_CALL SvxShapeCollection::addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw(::com::sun::star::uno::RuntimeException)
{
	mrBHelper.addListener( ::getCppuType( &aListener ) , aListener );
}

// XComponent
void SAL_CALL SvxShapeCollection::removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener >& aListener ) throw(::com::sun::star::uno::RuntimeException)
{
	mrBHelper.removeListener( ::getCppuType( &aListener ) , aListener );
}

// XShapes
//----------------------------------------------------------------------
void SAL_CALL SvxShapeCollection::add( const Reference< drawing::XShape >& xShape ) throw( uno::RuntimeException )
{
	maShapeContainer.addInterface( xShape );
}

//----------------------------------------------------------------------
void SAL_CALL SvxShapeCollection::remove( const uno::Reference< drawing::XShape >& xShape ) throw( uno::RuntimeException )
{
	maShapeContainer.removeInterface( xShape );
}

//----------------------------------------------------------------------
sal_Int32 SAL_CALL SvxShapeCollection::getCount() throw( uno::RuntimeException )
{
	return maShapeContainer.getLength();
}

//----------------------------------------------------------------------
uno::Any SAL_CALL SvxShapeCollection::getByIndex( sal_Int32 Index )
	throw( lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException )
{
	if( Index < 0 || Index >= getCount() )
		throw lang::IndexOutOfBoundsException();

	uno::Sequence< Reference< uno::XInterface> > xElements( maShapeContainer.getElements() );

	
	return uno::makeAny( Reference< XShape>(static_cast< drawing::XShape* >( xElements.getArray()[Index].get())) );
}

// XElementAccess

//----------------------------------------------------------------------
uno::Type SAL_CALL SvxShapeCollection::getElementType() throw( uno::RuntimeException )
{
	return ::getCppuType(( const Reference< drawing::XShape >*)0);
}

//----------------------------------------------------------------------
sal_Bool SAL_CALL SvxShapeCollection::hasElements() throw( uno::RuntimeException )
{
	return getCount() != 0;
}

//----------------------------------------------------------------------
// XServiceInfo
//----------------------------------------------------------------------
OUString SAL_CALL SvxShapeCollection::getImplementationName()
	throw( uno::RuntimeException )
{
	return OUString( RTL_CONSTASCII_USTRINGPARAM("SvxShapeCollection") );
}

sal_Bool SAL_CALL SvxShapeCollection::supportsService( const OUString& ServiceName )
	throw( uno::RuntimeException )
{
	return SvxServiceInfoHelper::supportsService( ServiceName, getSupportedServiceNames() );
}

uno::Sequence< OUString > SAL_CALL SvxShapeCollection::getSupportedServiceNames() throw( uno::RuntimeException )
{
	uno::Sequence< OUString > aSeq(1);
	aSeq.getArray()[0] = OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.Shapes") );
	return aSeq;
}


}
