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Diffstat (limited to 'cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx')
-rw-r--r-- | cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx b/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx new file mode 100644 index 000000000000..8cef77f1dd26 --- /dev/null +++ b/cppcanvas/source/mtfrenderer/cachedprimitivebase.hxx @@ -0,0 +1,98 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * 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 _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; + + protected: + using Action::render; + + 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 */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |