102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: cachedprimitivebase.cxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: obo $ $Date: 2006-09-17 12:48:57 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_cppcanvas.hxx"
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#include <rtl/logfile.hxx>
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#include <com/sun/star/rendering/RepaintResult.hpp>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <canvas/canvastools.hxx>
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#include <cppcanvas/canvas.hxx>
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#include "cachedprimitivebase.hxx"
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using namespace ::com::sun::star;
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namespace cppcanvas
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{
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namespace internal
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{
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CachedPrimitiveBase::CachedPrimitiveBase( const CanvasSharedPtr& rCanvas,
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bool bOnlyRedrawWithSameTransform ) :
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mpCanvas( rCanvas ),
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mxCachedPrimitive(),
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maLastTransformation(),
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mbOnlyRedrawWithSameTransform( bOnlyRedrawWithSameTransform )
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{
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// TODO(F2): also store last view transform, and refuse to
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// redraw if changed.
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}
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bool CachedPrimitiveBase::render( const ::basegfx::B2DHomMatrix& rTransformation ) const
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{
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RTL_LOGFILE_CONTEXT( aLog, "::cppcanvas::internal::CachedPrimitiveBase::render()" );
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RTL_LOGFILE_CONTEXT_TRACE1( aLog, "::cppcanvas::internal::CachedPrimitiveBase: 0x%X", this );
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const rendering::ViewState& rViewState( mpCanvas->getViewState() );
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::basegfx::B2DHomMatrix aTotalTransform;
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::canvas::tools::getViewStateTransform( aTotalTransform,
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rViewState );
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aTotalTransform *= rTransformation;
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// can we use the cached primitive? For that, it must be
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// present in the first place, and, if
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// mbOnlyRedrawWithSameTransform is true, the overall
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// transformation must be the same.
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if( mxCachedPrimitive.is() &&
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(!mbOnlyRedrawWithSameTransform ||
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maLastTransformation == aTotalTransform) )
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{
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if( mxCachedPrimitive->redraw( rViewState ) ==
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rendering::RepaintResult::REDRAWN )
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{
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// cached repaint succeeded, done.
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return true;
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}
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}
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maLastTransformation = aTotalTransform;
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// delegate rendering to derived classes
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return render( mxCachedPrimitive,
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rTransformation );
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}
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}
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}
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