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/*************************************************************************
*
* 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: proparrhlp.hxx,v $
* $Revision: 1.10 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _COMPHELPER_PROPERTY_ARRAY_HELPER_HXX_
#define _COMPHELPER_PROPERTY_ARRAY_HELPER_HXX_
#include <comphelper/stl_types.hxx>
#include <comphelper/propagg.hxx>
#include <cppuhelper/propshlp.hxx>
#include <osl/mutex.hxx>
#include <osl/diagnose.h>
#include <rtl/instance.hxx>
namespace cppu {
class IPropertyArrayHelper;
}
//... namespace comphelper ................................................
namespace comphelper
{
//.........................................................................
namespace staruno = ::com::sun::star::uno;
namespace starbeans = ::com::sun::star::beans;
//==================================================================
template <typename TYPE> struct OPropertyArrayUsageHelperMutex
: public rtl::Static< ::osl::Mutex, OPropertyArrayUsageHelperMutex<TYPE> > {};
template <class TYPE>
class OPropertyArrayUsageHelper
{
protected:
static sal_Int32 s_nRefCount;
static ::cppu::IPropertyArrayHelper* s_pProps;
public:
OPropertyArrayUsageHelper();
virtual ~OPropertyArrayUsageHelper()
{ // ARGHHHHHHH ..... would like to implement this after the class
// definition (as we do with all other methods) but SUNPRO 5 compiler
// (linker) doesn't like this
::osl::MutexGuard aGuard(OPropertyArrayUsageHelperMutex<TYPE>::get());
OSL_ENSURE(s_nRefCount > 0, "OPropertyArrayUsageHelper::~OPropertyArrayUsageHelper : suspicious call : have a refcount of 0 !");
if (!--s_nRefCount)
{
delete s_pProps;
s_pProps = NULL;
}
}
/** call this in the getInfoHelper method of your derived class. The method returns the array helper of the
class, which is created if neccessary.
*/
::cppu::IPropertyArrayHelper* getArrayHelper();
protected:
/** used to implement the creation of the array helper which is shared amongst all instances of the class.
This method needs to be implemented in derived classes.
<BR>
The method gets called with Mutex acquired.
<BR>
as long as IPropertyArrayHelper has no virtual destructor, the implementation of ~OPropertyArrayUsageHelper
assumes that you created an ::cppu::OPropertyArrayHelper when deleting s_pProps.
@return an pointer to the newly created array helper. Must not be NULL.
*/
virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const = 0;
};
//==================================================================
/** a OPropertyArrayUsageHelper which will create an OPropertyArrayAggregationHelper
*/
template <class TYPE>
class OAggregationArrayUsageHelper: public OPropertyArrayUsageHelper<TYPE>
{
protected:
/** overwrite this in your derived class. initialize the two sequences with your and your aggregate's
properties.
<BR>
The method gets called with Mutex acquired.
@param _rProps out parameter to be filled with the property descriptions of your own class
@param _rAggregateProps out parameter to be filled with the properties of your aggregate.
*/
virtual void fillProperties(
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property >& /* [out] */ _rProps,
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property >& /* [out] */ _rAggregateProps
) const = 0;
/** creates an OPropertyArrayAggregationHelper filled with properties for which's initialization
fillProperties is called. getInfoService and getFirstAggregateId may be overwritten to determine
the additional parameters of the OPropertyArrayAggregationHelper.
*/
virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const;
/** the return value is used for the construction of the OPropertyArrayAggregationHelper.
Beware of the lifetime of the returned object, as it has to exist 'til the last instance
of this class dies.
*/
virtual IPropertyInfoService* getInfoService() const { return NULL; }
/** the return value is used for the construction of the OPropertyArrayAggregationHelper.
*/
virtual sal_Int32 getFirstAggregateId() const { return DEFAULT_AGGREGATE_PROPERTY_ID; }
};
//------------------------------------------------------------------
template<class TYPE>
sal_Int32 OPropertyArrayUsageHelper< TYPE >::s_nRefCount = 0;
template<class TYPE>
::cppu::IPropertyArrayHelper* OPropertyArrayUsageHelper< TYPE >::s_pProps = NULL;
//------------------------------------------------------------------
template <class TYPE>
OPropertyArrayUsageHelper<TYPE>::OPropertyArrayUsageHelper()
{
::osl::MutexGuard aGuard(OPropertyArrayUsageHelperMutex<TYPE>::get());
++s_nRefCount;
}
//------------------------------------------------------------------
template <class TYPE>
::cppu::IPropertyArrayHelper* OPropertyArrayUsageHelper<TYPE>::getArrayHelper()
{
OSL_ENSURE(s_nRefCount, "OPropertyArrayUsageHelper::getArrayHelper : suspicious call : have a refcount of 0 !");
if (!s_pProps)
{
::osl::MutexGuard aGuard(OPropertyArrayUsageHelperMutex<TYPE>::get());
if (!s_pProps)
{
s_pProps = createArrayHelper();
OSL_ENSURE(s_pProps, "OPropertyArrayUsageHelper::getArrayHelper : createArrayHelper returned nonsense !");
}
}
return s_pProps;
}
//------------------------------------------------------------------
template <class TYPE> inline
::cppu::IPropertyArrayHelper* OAggregationArrayUsageHelper<TYPE>::createArrayHelper() const
{
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property > aProps;
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property > aAggregateProps;
fillProperties(aProps, aAggregateProps);
OSL_ENSURE(aProps.getLength(), "OAggregationArrayUsageHelper::createArrayHelper : fillProperties returned nonsense !");
return new OPropertyArrayAggregationHelper(aProps, aAggregateProps, getInfoService(), getFirstAggregateId());
}
//.........................................................................
}
//... namespace comphelper ................................................
#endif // _COMPHELPER_PROPERTY_ARRAY_HELPER_HXX_
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