1 files changed, 77 insertions, 0 deletions
diff --git a/sw/source/core/inc/laycache.hxx b/sw/source/core/inc/laycache.hxx
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+++ b/sw/source/core/inc/laycache.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * 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 _LAYCACHE_HXX
+#define _LAYCACHE_HXX
+
+#include <tools/solar.h>
+
+class SwDoc;
+class SwLayCacheImpl;
+class SvStream;
+
+/*************************************************************************
+ *                      class SwLayoutCache
+ *
+ * This class allows to save layout information in the file and it contains
+ * this information after loading of a file.
+ * Call Write(..) with a stream and the document to save and the page break
+ * information of the document will be written.
+ * Call Read(..) with a stream and the member pLayCacheImpl will
+ * read the information from the stream and store it in an internal structur.
+ * There's a simple locking mechanism at these classes,
+ * if somebody reads the information, he increments the lock count by 1,
+ * during the Read(..) function the lock count will set to $8000.
+ *
+ **************************************************************************/
+
+class SwLayoutCache
+{
+    SwLayCacheImpl *pImpl;
+    USHORT nLockCount;
+public:
+    SwLayoutCache() : pImpl( NULL ), nLockCount( 0 ) {}
+    ~SwLayoutCache();
+
+    void Read( SvStream &rStream );
+    void Write( SvStream &rStream, const SwDoc& rDoc );
+
+    void ClearImpl();
+    sal_Bool IsLocked() const { return nLockCount > 0; }
+    USHORT& GetLockCount() { return nLockCount; }
+    SwLayCacheImpl *LockImpl()
+        { if( nLockCount & 0x8000 ) return NULL;
+          if ( pImpl )
+            ++nLockCount;
+          return pImpl; }
+    void UnlockImpl() { --nLockCount; }
+
+#ifdef DBG_UTIL
+    sal_Bool CompareLayout( const SwDoc& rDoc ) const;
+#endif
+};
+
+#endif