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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: unifiedalphaprimitive2d.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: aw $ $Date: 2006-11-07 15:49:10 $
*
* 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 INCLUDED_DRAWINGLAYER_PRIMITIVE2D_UNIFIEDALPHAPRIMITIVE2D_HXX
#include <drawinglayer/primitive2d/unifiedalphaprimitive2d.hxx>
#endif
#ifndef _BGFX_POLYGON_B2DPOLYGON_HXX
#include <basegfx/polygon/b2dpolygon.hxx>
#endif
#ifndef _BGFX_POLYGON_B2DPOLYGONTOOLS_HXX
#include <basegfx/polygon/b2dpolygontools.hxx>
#endif
#ifndef _BGFX_COLOR_BCOLOR_HXX
#include <basegfx/color/bcolor.hxx>
#endif
#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_POLYPOLYGONPRIMITIVE2D_HXX
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#endif
#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_ALPHAPRIMITIVE2D_HXX
#include <drawinglayer/primitive2d/alphaprimitive2d.hxx>
#endif
//////////////////////////////////////////////////////////////////////////////
using namespace com::sun::star;
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence UnifiedAlphaPrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const
{
if(0.0 == getAlpha())
{
// no transparence used, so just use the content
return getChildren();
}
else if(getAlpha() > 0.0 && getAlpha() < 1.0)
{
// create fill polygon for TransparenceList
const basegfx::B2DPolygon aPolygon(basegfx::tools::createPolygonFromRect(getB2DRangeFromPrimitive2DSequence(getChildren(), rViewInformation)));
const basegfx::BColor aGray(getAlpha(), getAlpha(), getAlpha());
const Primitive2DReference xRefA(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aPolygon), aGray));
const Primitive2DSequence aAlphaContent(&xRefA, 1L);
// create sub-transparence group with a gray-colored rectangular fill polygon
const Primitive2DReference xRefB(new AlphaPrimitive2D(getChildren(), aAlphaContent));
return Primitive2DSequence(&xRefB, 1L);
}
else
{
// completely transparent or invalid definition, add nothing
return Primitive2DSequence();
}
}
UnifiedAlphaPrimitive2D::UnifiedAlphaPrimitive2D(
const Primitive2DSequence& rChildren,
double fAlpha)
: GroupPrimitive2D(rChildren),
mfAlpha(fAlpha)
{
}
bool UnifiedAlphaPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(GroupPrimitive2D::operator==(rPrimitive))
{
const UnifiedAlphaPrimitive2D& rCompare = (UnifiedAlphaPrimitive2D&)rPrimitive;
return (getAlpha() == rCompare.getAlpha());
}
return false;
}
// provide unique ID
ImplPrimitrive2DIDBlock(UnifiedAlphaPrimitive2D, '2','U','A','l')
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
// eof
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