INTEGRATION: CWS canvas02 (1.1.2); FILE ADDED

2005/10/11 15:42:27 thb 1.1.2.2: #i54170# Corrected license headers
2005/08/24 22:59:00 thb 1.1.2.1: #i52876# Initial revision: base class for common XCachedPrimitive handling

1 files changed, 100 insertions, 0 deletions

diff --git a/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx b/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx
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+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: cachedprimitivebase.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: kz $ $Date: 2005-11-02 13:40:01 $
+ *
+ *  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
+ *
+ ************************************************************************/
+
+#ifndef _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX
+#define _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include <cppcanvas/canvas.hxx>
+#include <boost/utility.hpp>
+
+#include "action.hxx"
+
+namespace basegfx { class B2DHomMatrix; }
+
+
+/* Definition of internal::CachedPrimitiveBase class */
+
+namespace cppcanvas
+{
+    namespace internal
+    {
+        /** Base class providing cached re-rendering, if XCanvas
+            returns XCachedPrimitive
+
+            Derive from this class and implement private render()
+            method to perform the actual primitive rendering. Return
+            cached primitive into given reference. Next time this
+            class' public render() method gets called, the cached
+            representation is taken.
+         */
+        class CachedPrimitiveBase : public Action,
+                                    private ::boost::noncopyable
+        {
+        public:
+            /** Constructor
+
+                @param rCanvas
+                Canvas on which this primitive is to appear
+
+                @param bOnlyRedrawWithSameTransform
+                When true, this class only reuses the cached
+                primitive, if the overall transformation stays the
+                same. Otherwise, repaints are always performed via the
+                cached primitive.
+             */
+            CachedPrimitiveBase( const CanvasSharedPtr& rCanvas,
+                                 bool                   bOnlyRedrawWithSameTransform );
+            virtual ~CachedPrimitiveBase() {}
+
+            virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const;
+
+        private:
+            virtual bool render( ::com::sun::star::uno::Reference<
+                                     ::com::sun::star::rendering::XCachedPrimitive >& rCachedPrimitive,
+                                 const ::basegfx::B2DHomMatrix&                       rTransformation ) const = 0;
+
+            CanvasSharedPtr                                             mpCanvas;
+            mutable ::com::sun::star::uno::Reference<
+                    ::com::sun::star::rendering::XCachedPrimitive >     mxCachedPrimitive;
+            mutable ::basegfx::B2DHomMatrix                             maLastTransformation;
+            const bool                                                  mbOnlyRedrawWithSameTransform;
+        };
+    }
+}
+
+#endif /*_CPPCANVAS_CACHEDPRIMITIVEBASE_HXX */