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 * Licensed to the Apache Software Foundation (ASF) under one
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_drawinglayer.hxx"

#include <drawinglayer/primitive2d/fillhatchprimitive2d.hxx>
#include <drawinglayer/texture/texture.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

//////////////////////////////////////////////////////////////////////////////

using namespace com::sun::star;

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace primitive2d
	{
		Primitive2DSequence FillHatchPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
		{
		    Primitive2DSequence aRetval;
            if(!getFillHatch().isDefault())
            {
			    // create hatch
			    const basegfx::BColor aHatchColor(getFillHatch().getColor());
			    const double fAngle(getFillHatch().getAngle());
			    ::std::vector< basegfx::B2DHomMatrix > aMatrices;

			    // get hatch transformations
			    switch(getFillHatch().getStyle())
			    {
				    case attribute::HATCHSTYLE_TRIPLE:
				    {
					    // rotated 45 degrees
					    texture::GeoTexSvxHatch aHatch(getObjectRange(), getFillHatch().getDistance(), fAngle - F_PI4);
					    aHatch.appendTransformations(aMatrices);

					    // fall-through by purpose
				    }
				    case attribute::HATCHSTYLE_DOUBLE:
				    {
					    // rotated 90 degrees
					    texture::GeoTexSvxHatch aHatch(getObjectRange(), getFillHatch().getDistance(), fAngle - F_PI2);
					    aHatch.appendTransformations(aMatrices);

					    // fall-through by purpose
				    }
				    case attribute::HATCHSTYLE_SINGLE:
				    {
					    // angle as given
					    texture::GeoTexSvxHatch aHatch(getObjectRange(), getFillHatch().getDistance(), fAngle);
					    aHatch.appendTransformations(aMatrices);
				    }
			    }

			    // prepare return value
			    const bool bFillBackground(getFillHatch().isFillBackground());
			    aRetval.realloc(bFillBackground ? aMatrices.size() + 1L : aMatrices.size());

			    // evtl. create filled background
			    if(bFillBackground)
			    {
				    // create primitive for background
				    const Primitive2DReference xRef(
                        new PolyPolygonColorPrimitive2D(
                            basegfx::B2DPolyPolygon(
                                basegfx::tools::createPolygonFromRect(getObjectRange())), getBColor()));
				    aRetval[0] = xRef;
			    }

			    // create primitives
			    const basegfx::B2DPoint aStart(0.0, 0.0);
			    const basegfx::B2DPoint aEnd(1.0, 0.0);

			    for(sal_uInt32 a(0L); a < aMatrices.size(); a++)
			    {
				    const basegfx::B2DHomMatrix& rMatrix = aMatrices[a];
				    basegfx::B2DPolygon aNewLine;

				    aNewLine.append(rMatrix * aStart);
				    aNewLine.append(rMatrix * aEnd);

				    // create hairline
				    const Primitive2DReference xRef(new PolygonHairlinePrimitive2D(aNewLine, aHatchColor));
				    aRetval[bFillBackground ? (a + 1) : a] = xRef;
			    }
            }

            return aRetval;
		}

		FillHatchPrimitive2D::FillHatchPrimitive2D(
			const basegfx::B2DRange& rObjectRange, 
			const basegfx::BColor& rBColor, 
			const attribute::FillHatchAttribute& rFillHatch)
		:	BufferedDecompositionPrimitive2D(),
			maObjectRange(rObjectRange),
			maFillHatch(rFillHatch),
			maBColor(rBColor)
		{
		}

		bool FillHatchPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
		{
			if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
			{
				const FillHatchPrimitive2D& rCompare = (FillHatchPrimitive2D&)rPrimitive;

				return (getObjectRange() == rCompare.getObjectRange() 
					&& getFillHatch() == rCompare.getFillHatch()
					&& getBColor() == rCompare.getBColor());
			}

			return false;
		}

		basegfx::B2DRange FillHatchPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
		{
			// return ObjectRange
			return getObjectRange();
		}

		// provide unique ID
		ImplPrimitrive2DIDBlock(FillHatchPrimitive2D, PRIMITIVE2D_ID_FILLHATCHPRIMITIVE2D)

	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////
// eof