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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: fillgradientprimitive2d.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: aw $ $Date: 2007-11-19 10:21:42 $
*
* 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_FILLGRADIENTPRIMITIVE2D_HXX
#include <drawinglayer/primitive2d/fillgradientprimitive2d.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 INCLUDED_DRAWINGLAYER_TEXTURE_TEXTURE_HXX
#include <drawinglayer/texture/texture.hxx>
#endif
#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_POLYPOLYGONPRIMITIVE2D_HXX
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#endif
#ifndef _BGFX_TOOLS_CANVASTOOLS_HXX
#include <basegfx/tools/canvastools.hxx>
#endif
#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_PRIMITIVETYPES2D_HXX
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#endif
//////////////////////////////////////////////////////////////////////////////
using namespace com::sun::star;
//////////////////////////////////////////////////////////////////////////////
namespace drawinglayer
{
namespace primitive2d
{
Primitive2DSequence FillGradientPrimitive2D::createLocalDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
{
const attribute::GradientStyle aGradientStyle(maFillGradient.getStyle());
::std::vector< basegfx::B2DHomMatrix > aMatrices;
::std::vector< basegfx::BColor > aColors;
basegfx::B2DPolygon aUnitPolygon;
sal_uInt32 nSteps(maFillGradient.getSteps());
if(attribute::GRADIENTSTYLE_RADIAL == aGradientStyle || attribute::GRADIENTSTYLE_ELLIPTICAL == aGradientStyle)
{
const basegfx::B2DPoint aCircleCenter(0.5, 0.5);
aUnitPolygon = basegfx::tools::createPolygonFromEllipse(aCircleCenter, 0.5, 0.5);
}
else
{
aUnitPolygon = basegfx::tools::createPolygonFromRect(basegfx::B2DRange(0.0, 0.0, 1.0, 1.0));
}
// make sure steps is not too high/low
const basegfx::BColor aStart(maFillGradient.getStartColor());
const basegfx::BColor aEnd(maFillGradient.getEndColor());
const sal_uInt32 nMaxSteps(sal_uInt32((aStart.getMaximumDistance(aEnd) * 127.5) + 0.5));
if(nSteps == 0L)
{
nSteps = nMaxSteps;
}
if(nSteps < 2L)
{
nSteps = 2L;
}
if(nSteps > nMaxSteps)
{
nSteps = nMaxSteps;
}
switch(aGradientStyle)
{
case attribute::GRADIENTSTYLE_LINEAR:
{
texture::GeoTexSvxGradientLinear aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), -maFillGradient.getAngle());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
case attribute::GRADIENTSTYLE_AXIAL:
{
texture::GeoTexSvxGradientAxial aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), -maFillGradient.getAngle());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
case attribute::GRADIENTSTYLE_RADIAL:
{
texture::GeoTexSvxGradientRadial aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), maFillGradient.getOffsetX(), maFillGradient.getOffsetY());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
case attribute::GRADIENTSTYLE_ELLIPTICAL:
{
texture::GeoTexSvxGradientElliptical aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), maFillGradient.getOffsetX(), maFillGradient.getOffsetY(), -maFillGradient.getAngle());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
case attribute::GRADIENTSTYLE_SQUARE:
{
texture::GeoTexSvxGradientSquare aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), maFillGradient.getOffsetX(), maFillGradient.getOffsetY(), -maFillGradient.getAngle());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
case attribute::GRADIENTSTYLE_RECT:
{
texture::GeoTexSvxGradientRect aGradient(getObjectRange(), aStart, aEnd, nSteps, maFillGradient.getBorder(), maFillGradient.getOffsetX(), maFillGradient.getOffsetY(), -maFillGradient.getAngle());
aGradient.appendTransformations(aMatrices);
aGradient.appendColors(aColors);
break;
}
}
// prepare return value
Primitive2DSequence aRetval(aColors.size() ? aMatrices.size() + 1L : aMatrices.size());
// create solid fill with start color
if(aColors.size())
{
// create primitive
const Primitive2DReference xRef(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(getObjectRange())), aColors[0L]));
aRetval[0L] = xRef;
}
// create solid fill steps
for(sal_uInt32 a(0L); a < aMatrices.size(); a++)
{
// create part polygon
basegfx::B2DPolygon aNewPoly(aUnitPolygon);
aNewPoly.transform(aMatrices[a]);
// create solid fill
const Primitive2DReference xRef(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aNewPoly), aColors[a + 1L]));
aRetval[a + 1L] = xRef;
}
return aRetval;
}
FillGradientPrimitive2D::FillGradientPrimitive2D(
const basegfx::B2DRange& rObjectRange,
const attribute::FillGradientAttribute& rFillGradient)
: BasePrimitive2D(),
maObjectRange(rObjectRange),
maFillGradient(rFillGradient)
{
}
bool FillGradientPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
if(BasePrimitive2D::operator==(rPrimitive))
{
const FillGradientPrimitive2D& rCompare = (FillGradientPrimitive2D&)rPrimitive;
return (getObjectRange() == rCompare.getObjectRange()
&& maFillGradient == rCompare.maFillGradient);
}
return false;
}
basegfx::B2DRange FillGradientPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
{
// return ObjectRange
return getObjectRange();
}
// provide unique ID
ImplPrimitrive2DIDBlock(FillGradientPrimitive2D, PRIMITIVE2D_ID_FILLGRADIENTPRIMITIVE2D)
} // end of namespace primitive2d
} // end of namespace drawinglayer
//////////////////////////////////////////////////////////////////////////////
// eof
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