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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.
*
************************************************************************/
#include <drawinglayer/primitive2d/primitivetools2d.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence DiscreteMetricDependentPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard( m_aMutex );
// get the current DiscreteUnit
const double fDiscreteUnit((rViewInformation.getInverseObjectToViewTransformation() * basegfx::B2DVector(1.0, 0.0)).getLength());
if(getBuffered2DDecomposition().hasElements() && !basegfx::fTools::equal(fDiscreteUnit, getDiscreteUnit()))
{
// conditions of last local decomposition have changed, delete
const_cast< DiscreteMetricDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
}
if(!getBuffered2DDecomposition().hasElements())
{
// remember new valid DiscreteUnit
const_cast< DiscreteMetricDependentPrimitive2D* >(this)->mfDiscreteUnit = fDiscreteUnit;
}
// call base implementation
return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
}
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence ViewportDependentPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard( m_aMutex );
// get the current Viewport
const basegfx::B2DRange& rViewport = rViewInformation.getViewport();
if(getBuffered2DDecomposition().hasElements() && !rViewport.equal(getViewport()))
{
// conditions of last local decomposition have changed, delete
const_cast< ViewportDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
}
if(!getBuffered2DDecomposition().hasElements())
{
// remember new valid DiscreteUnit
const_cast< ViewportDependentPrimitive2D* >(this)->maViewport = rViewport;
}
// call base implementation
return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
}
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence ViewTransformationDependentPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard( m_aMutex );
// get the current ViewTransformation
const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation();
if(getBuffered2DDecomposition().hasElements() && rViewTransformation != getViewTransformation())
{
// conditions of last local decomposition have changed, delete
const_cast< ViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
}
if(!getBuffered2DDecomposition().hasElements())
{
// remember new valid ViewTransformation
const_cast< ViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation;
}
// call base implementation
return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
}
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence ObjectAndViewTransformationDependentPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
::osl::MutexGuard aGuard( m_aMutex );
// get the current ViewTransfromation
const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation();
if(getBuffered2DDecomposition().hasElements() && rViewTransformation != getViewTransformation())
{
// conditions of last local decomposition have changed, delete
const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
}
// get the current ObjectTransformation
const basegfx::B2DHomMatrix& rObjectTransformation = rViewInformation.getObjectTransformation();
if(getBuffered2DDecomposition().hasElements() && rObjectTransformation != getObjectTransformation())
{
// conditions of last local decomposition have changed, delete
const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
}
if(!getBuffered2DDecomposition().hasElements())
{
// remember new valid ViewTransformation, and ObjectTransformation
const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation;
const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maObjectTransformation = rObjectTransformation;
}
// call base implementation
return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
}
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
// eof
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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