INTEGRATION: CWS oj14 (1.1.2); FILE ADDED

2006/12/19 14:15:44 oj 1.1.2.1: new SelectionMultiplex

1 files changed, 185 insertions, 0 deletions

diff --git a/comphelper/source/misc/SelectionMultiplex.cxx b/comphelper/source/misc/SelectionMultiplex.cxx
new file mode 100644
index 000000000000..74f9318384eb
--- /dev/null
+++ b/comphelper/source/misc/SelectionMultiplex.cxx
@@ -0,0 +1,185 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: SelectionMultiplex.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2007-07-06 10:20:04 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library 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 for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_comphelper.hxx"
+
+#include <comphelper/SelectionMultiplex.hxx>
+
+#ifndef _OSL_DIAGNOSE_H_
+#include <osl/diagnose.h>
+#endif
+
+//.........................................................................
+namespace comphelper
+{
+//.........................................................................
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::view;
+
+//========================================================================
+//= OSelectionChangeListener
+//========================================================================
+//------------------------------------------------------------------------
+OSelectionChangeListener::~OSelectionChangeListener()
+{
+    if (m_pAdapter)
+        m_pAdapter->dispose();
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeListener::_disposing(const EventObject&) throw( RuntimeException)
+{
+    // nothing to do here
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeListener::disposeAdapter()
+{
+    if ( m_pAdapter )
+        m_pAdapter->dispose();
+
+    // will automatically set a new adapter
+    OSL_ENSURE( !m_pAdapter, "OSelectionChangeListener::disposeAdapter: what did dispose do?" );
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeListener::setAdapter(OSelectionChangeMultiplexer* pAdapter)
+{
+    if (m_pAdapter)
+    {
+        ::osl::MutexGuard aGuard(m_rMutex);
+        m_pAdapter->release();
+        m_pAdapter = NULL;
+    }
+
+    if (pAdapter)
+    {
+        ::osl::MutexGuard aGuard(m_rMutex);
+        m_pAdapter = pAdapter;
+        m_pAdapter->acquire();
+    }
+}
+
+//========================================================================
+//= OSelectionChangeMultiplexer
+//========================================================================
+//------------------------------------------------------------------
+OSelectionChangeMultiplexer::OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const  Reference< XSelectionSupplier>& _rxSet, sal_Bool _bAutoReleaseSet)
+            :m_xSet(_rxSet)
+            ,m_pListener(_pListener)
+            ,m_nLockCount(0)
+            ,m_bListening(sal_False)
+            ,m_bAutoSetRelease(_bAutoReleaseSet)
+{
+    m_pListener->setAdapter(this);
+    osl_incrementInterlockedCount(&m_refCount);
+    {
+        Reference< XSelectionChangeListener> xPreventDelete(this);
+        m_xSet->addSelectionChangeListener(xPreventDelete);
+    }
+    osl_decrementInterlockedCount(&m_refCount);
+}
+
+//------------------------------------------------------------------
+OSelectionChangeMultiplexer::~OSelectionChangeMultiplexer()
+{
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeMultiplexer::lock()
+{
+    ++m_nLockCount;
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeMultiplexer::unlock()
+{
+    --m_nLockCount;
+}
+
+//------------------------------------------------------------------
+void OSelectionChangeMultiplexer::dispose()
+{
+    if (m_bListening)
+    {
+        Reference< XSelectionChangeListener> xPreventDelete(this);
+
+        m_xSet->removeSelectionChangeListener(xPreventDelete);
+
+        m_pListener->setAdapter(NULL);
+
+        m_pListener = NULL;
+        m_bListening = sal_False;
+
+        if (m_bAutoSetRelease)
+            m_xSet = NULL;
+    }
+}
+
+// XEventListener
+//------------------------------------------------------------------
+void SAL_CALL OSelectionChangeMultiplexer::disposing( const  EventObject& _rSource) throw( RuntimeException)
+{
+    if (m_pListener)
+    {
+         // tell the listener
+        if (!locked())
+            m_pListener->_disposing(_rSource);
+        // disconnect the listener
+        if (m_pListener)    // may have been reset whilest calling into _disposing
+            m_pListener->setAdapter(NULL);
+    }
+
+    m_pListener = NULL;
+    m_bListening = sal_False;
+
+    if (m_bAutoSetRelease)
+        m_xSet = NULL;
+}
+
+// XSelectionChangeListener
+//------------------------------------------------------------------
+void SAL_CALL OSelectionChangeMultiplexer::selectionChanged( const  EventObject& _rEvent ) throw( RuntimeException)
+{
+    if (m_pListener && !locked())
+        m_pListener->_selectionChanged(_rEvent);
+}
+//.........................................................................
+}
+//.........................................................................
+