office-gobmx/forms/source/component/FormattedFieldWrapper.cxx
2011-03-02 15:00:30 +01:00

400 lines
16 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_forms.hxx"
#include "FormattedFieldWrapper.hxx"
#include "Edit.hxx"
#include "FormattedField.hxx"
#include <tools/debug.hxx>
#include "EditBase.hxx"
#include "services.hxx"
#include <connectivity/dbtools.hxx>
#include <vcl/svapp.hxx>
//.........................................................................
namespace frm
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::form;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::util;
//==================================================================
// OFormattedFieldWrapper
//==================================================================
DBG_NAME(OFormattedFieldWrapper)
//------------------------------------------------------------------
InterfaceRef SAL_CALL OFormattedFieldWrapper_CreateInstance_ForceFormatted(const Reference<XMultiServiceFactory>& _rxFactory)
{
return *(new OFormattedFieldWrapper(_rxFactory, sal_True));
}
//------------------------------------------------------------------
InterfaceRef SAL_CALL OFormattedFieldWrapper_CreateInstance(const Reference<XMultiServiceFactory>& _rxFactory)
{
return *(new OFormattedFieldWrapper(_rxFactory, sal_False));
}
//------------------------------------------------------------------
OFormattedFieldWrapper::OFormattedFieldWrapper(const Reference<XMultiServiceFactory>& _rxFactory, sal_Bool _bActAsFormatted)
:m_xServiceFactory(_rxFactory)
,m_pEditPart(NULL)
{
DBG_CTOR(OFormattedFieldWrapper, NULL);
if (_bActAsFormatted)
{
increment(m_refCount);
{
// instantiate an FormattedModel
InterfaceRef xFormattedModel;
// (instantiate it directly ..., as the OFormattedModel isn't registered for any service names anymore)
OFormattedModel* pModel = new OFormattedModel(m_xServiceFactory);
query_interface(static_cast<XWeak*>(pModel), xFormattedModel);
m_xAggregate = Reference<XAggregation> (xFormattedModel, UNO_QUERY);
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::OFormattedFieldWrapper : the OFormattedModel didn't have an XAggregation interface !");
// _before_ setting the delegator, give it to the member references
query_interface(xFormattedModel, m_xFormattedPart);
m_pEditPart = new OEditModel(m_xServiceFactory);
m_pEditPart->acquire();
}
if (m_xAggregate.is())
{ // has to be in it's own block because of the temporary variable created by *this
m_xAggregate->setDelegator(static_cast<XWeak*>(this));
}
decrement(m_refCount);
}
}
//------------------------------------------------------------------
OFormattedFieldWrapper::OFormattedFieldWrapper( const OFormattedFieldWrapper* _pCloneSource )
:m_xServiceFactory( _pCloneSource->m_xServiceFactory )
,m_pEditPart( NULL )
{
Reference< XCloneable > xCloneAccess;
query_aggregation( _pCloneSource->m_xAggregate, xCloneAccess );
// clone the aggregate
if ( xCloneAccess.is() )
{
increment( m_refCount );
{
Reference< XCloneable > xClone = xCloneAccess->createClone();
m_xAggregate = Reference< XAggregation >( xClone, UNO_QUERY );
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::OFormattedFieldWrapper : invalid aggregate clone!");
query_interface( Reference< XInterface >( xClone.get() ), m_xFormattedPart );
if ( _pCloneSource->m_pEditPart )
{
m_pEditPart = new OEditModel( _pCloneSource->m_pEditPart, _pCloneSource->m_xServiceFactory );
m_pEditPart->acquire();
}
}
if ( m_xAggregate.is() )
{ // has to be in it's own block because of the temporary variable created by *this
m_xAggregate->setDelegator( static_cast< XWeak* >( this ) );
}
decrement( m_refCount );
}
else
{ // the clone source does not yet have an aggregate -> we don't yet need one, too
}
}
//------------------------------------------------------------------
OFormattedFieldWrapper::~OFormattedFieldWrapper()
{
// release the aggregated object (if any)
if (m_xAggregate.is())
m_xAggregate->setDelegator(InterfaceRef ());
if (m_pEditPart)
m_pEditPart->release();
DBG_DTOR(OFormattedFieldWrapper, NULL);
}
//------------------------------------------------------------------
Any SAL_CALL OFormattedFieldWrapper::queryAggregation(const Type& _rType) throw (RuntimeException)
{
Any aReturn;
if (_rType.equals( ::getCppuType( static_cast< Reference< XTypeProvider >* >(NULL) ) ) )
{ // a XTypeProvider interface needs a working aggregate - we don't want to give the type provider
// of our base class (OFormattedFieldWrapper_Base) to the caller as it supplies nearly nothing
ensureAggregate();
if (m_xAggregate.is())
aReturn = m_xAggregate->queryAggregation(_rType);
}
if (!aReturn.hasValue())
{
aReturn = OFormattedFieldWrapper_Base::queryAggregation(_rType);
if ((_rType.equals( ::getCppuType( static_cast< Reference< XServiceInfo >* >(NULL) ) ) ) && aReturn.hasValue())
{ // somebody requested an XServiceInfo interface and our base class provided it
// check our aggregate if it has one, too
ensureAggregate();
}
if (!aReturn.hasValue())
{
aReturn = ::cppu::queryInterface( _rType,
static_cast< XPersistObject* >( this ),
static_cast< XCloneable* >( this )
);
if (!aReturn.hasValue())
{
// somebody requests an interface other than the basics (XInterface) and other than
// the two we can supply without an aggregate. So ensure
// the aggregate exists.
ensureAggregate();
if (m_xAggregate.is())
aReturn = m_xAggregate->queryAggregation(_rType);
}
}
}
return aReturn;
}
//------------------------------------------------------------------
::rtl::OUString SAL_CALL OFormattedFieldWrapper::getServiceName() throw(RuntimeException)
{
// return the old compatibility name for an EditModel
return FRM_COMPONENT_EDIT;
}
//------------------------------------------------------------------
::rtl::OUString SAL_CALL OFormattedFieldWrapper::getImplementationName( ) throw (RuntimeException)
{
return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.comp.forms.OFormattedFieldWrapper") );
}
//------------------------------------------------------------------
sal_Bool SAL_CALL OFormattedFieldWrapper::supportsService( const ::rtl::OUString& _rServiceName ) throw (RuntimeException)
{
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::supportsService: should never have made it 'til here without an aggregate!");
Reference< XServiceInfo > xSI;
m_xAggregate->queryAggregation(::getCppuType(static_cast< Reference< XServiceInfo >* >(NULL))) >>= xSI;
return xSI->supportsService(_rServiceName);
}
//------------------------------------------------------------------
Sequence< ::rtl::OUString > SAL_CALL OFormattedFieldWrapper::getSupportedServiceNames( ) throw (RuntimeException)
{
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::getSupportedServiceNames: should never have made it 'til here without an aggregate!");
Reference< XServiceInfo > xSI;
m_xAggregate->queryAggregation(::getCppuType(static_cast< Reference< XServiceInfo >* >(NULL))) >>= xSI;
return xSI->getSupportedServiceNames();
}
//------------------------------------------------------------------
void SAL_CALL OFormattedFieldWrapper::write(const Reference<XObjectOutputStream>& _rxOutStream) throw( IOException, RuntimeException )
{
// can't write myself
ensureAggregate();
// if we act as real edit field, we can simple forward this write request
if (!m_xFormattedPart.is())
{
Reference<XPersistObject> xAggregatePersistence;
query_aggregation(m_xAggregate, xAggregatePersistence);
DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::write : don't know how to handle this : can't write !");
// oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ...
if (xAggregatePersistence.is())
xAggregatePersistence->write(_rxOutStream);
return;
}
// else we have to write an edit part first
DBG_ASSERT(m_pEditPart, "OFormattedFieldWrapper::write : formatted part without edit part ?");
if ( !m_pEditPart )
throw RuntimeException( ::rtl::OUString(), *this );
// for this we transfer the current props of the formatted part to the edit part
Reference<XPropertySet> xFormatProps(m_xFormattedPart, UNO_QUERY);
Reference<XPropertySet> xEditProps;
query_interface(static_cast<XWeak*>(m_pEditPart), xEditProps);
Locale aAppLanguage = Application::GetSettings().GetUILocale();
dbtools::TransferFormComponentProperties(xFormatProps, xEditProps, aAppLanguage);
// then write the edit part, after switching to "fake mode"
m_pEditPart->enableFormattedWriteFake();
m_pEditPart->write(_rxOutStream);
m_pEditPart->disableFormattedWriteFake();
// and finally write the formatted part we're really interested in
m_xFormattedPart->write(_rxOutStream);
}
//------------------------------------------------------------------
void SAL_CALL OFormattedFieldWrapper::read(const Reference<XObjectInputStream>& _rxInStream) throw( IOException, RuntimeException )
{
if (m_xAggregate.is())
{ // we alread did a decision if we're an EditModel or a FormattedModel
// if we act as formatted, we have to read the edit part first
if (m_xFormattedPart.is())
{
// two possible cases:
// a) the stuff was written by a version which didn't work with an Edit header (all intermediate
// versions >5.1 && <=568)
// b) it was written by a version using edit headers
// as we can distinguish a) from b) only after we have read the edit part, we need to remember the
// position
Reference<XMarkableStream> xInMarkable(_rxInStream, UNO_QUERY);
DBG_ASSERT(xInMarkable.is(), "OFormattedFieldWrapper::read : can only work with markable streams !");
sal_Int32 nBeforeEditPart = xInMarkable->createMark();
m_pEditPart->read(_rxInStream);
// this only works because an edit model can read the stuff written by a formatted model (maybe with
// some assertions) , but not vice versa
if (!m_pEditPart->lastReadWasFormattedFake())
{ // case a), written with a version without the edit part fake, so seek to the start position, again
xInMarkable->jumpToMark(nBeforeEditPart);
}
xInMarkable->deleteMark(nBeforeEditPart);
}
Reference<XPersistObject> xAggregatePersistence;
query_aggregation(m_xAggregate, xAggregatePersistence);
DBG_ASSERT(xAggregatePersistence.is(), "OFormattedFieldWrapper::read : don't know how to handle this : can't read !");
// oops ... We gave an XPersistObject interface to the caller but now we aren't an XPersistObject ...
if (xAggregatePersistence.is())
xAggregatePersistence->read(_rxInStream);
return;
}
// we have to decide from the data within the stream whether we should be an EditModel or a FormattedModel
OEditBaseModel* pNewAggregate = NULL;
// let an OEditModel do the reading
OEditModel* pBasicReader = new OEditModel(m_xServiceFactory);
Reference< XInterface > xHoldBasicReaderAlive( *pBasicReader );
pBasicReader->read(_rxInStream);
// was it really an edit model ?
if (!pBasicReader->lastReadWasFormattedFake())
// yes -> all fine
pNewAggregate = pBasicReader;
else
{ // no -> substitute it with a formatted model
// let the formmatted model do the reading
OFormattedModel* pFormattedReader = new OFormattedModel(m_xServiceFactory);
Reference< XInterface > xHoldAliveWhileRead( *pFormattedReader );
pFormattedReader->read(_rxInStream);
// for the next write (if any) : the FormattedModel and the EditModel parts
query_interface(static_cast<XWeak*>(pFormattedReader), m_xFormattedPart);
m_pEditPart = pBasicReader;
m_pEditPart->acquire();
// aggregate the formatted part below
pNewAggregate = pFormattedReader;
}
// do the aggregation
increment(m_refCount);
{
query_interface(static_cast<XWeak*>(pNewAggregate), m_xAggregate);
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::read : the OEditModel didn't have an XAggregation interface !");
}
if (m_xAggregate.is())
{ // has to be in it's own block because of the temporary variable created by *this
m_xAggregate->setDelegator(static_cast<XWeak*>(this));
}
decrement(m_refCount);
}
//------------------------------------------------------------------
Reference< XCloneable > SAL_CALL OFormattedFieldWrapper::createClone( ) throw (RuntimeException)
{
ensureAggregate();
return new OFormattedFieldWrapper( this );
}
//------------------------------------------------------------------
void OFormattedFieldWrapper::ensureAggregate()
{
if (m_xAggregate.is())
return;
increment(m_refCount);
{
// instantiate an EditModel (the only place where we are allowed to decide that we're an FormattedModel
// is in ::read)
InterfaceRef xEditModel = m_xServiceFactory->createInstance(FRM_SUN_COMPONENT_TEXTFIELD);
if (!xEditModel.is())
{
// arghhh ... instantiate it directly ... it's dirty, but we really need this aggregate
OEditModel* pModel = new OEditModel(m_xServiceFactory);
query_interface(static_cast<XWeak*>(pModel), xEditModel);
}
m_xAggregate = Reference<XAggregation> (xEditModel, UNO_QUERY);
DBG_ASSERT(m_xAggregate.is(), "OFormattedFieldWrapper::ensureAggregate : the OEditModel didn't have an XAggregation interface !");
{
Reference< XServiceInfo > xSI(m_xAggregate, UNO_QUERY);
if (!xSI.is())
{
OSL_FAIL("OFormattedFieldWrapper::ensureAggregate: the aggregate has no XServiceInfo!");
m_xAggregate.clear();
}
}
}
if (m_xAggregate.is())
{ // has to be in it's own block because of the temporary variable created by *this
m_xAggregate->setDelegator(static_cast<XWeak*>(this));
}
decrement(m_refCount);
}
//.........................................................................
}
//.........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */