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/* -*- 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 renderPrimitive( ::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: */
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