diff options
Diffstat (limited to 'drawinglayer/source/primitive2d/fillgradientprimitive2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/fillgradientprimitive2d.cxx | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/fillgradientprimitive2d.cxx b/drawinglayer/source/primitive2d/fillgradientprimitive2d.cxx new file mode 100644 index 000000000000..8659eb356405 --- /dev/null +++ b/drawinglayer/source/primitive2d/fillgradientprimitive2d.cxx @@ -0,0 +1,298 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_drawinglayer.hxx" + +#include <drawinglayer/primitive2d/fillgradientprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <drawinglayer/texture/texture.hxx> +#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx> +#include <basegfx/tools/canvastools.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> + +////////////////////////////////////////////////////////////////////////////// + +using namespace com::sun::star; + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive2d + { + void FillGradientPrimitive2D::generateMatricesAndColors( + std::vector< basegfx::B2DHomMatrix >& rMatrices, + std::vector< basegfx::BColor >& rColors) const + { + rMatrices.clear(); + rColors.clear(); + + // make sure steps is not too high/low + const basegfx::BColor aStart(getFillGradient().getStartColor()); + const basegfx::BColor aEnd(getFillGradient().getEndColor()); + const sal_uInt32 nMaxSteps(sal_uInt32((aStart.getMaximumDistance(aEnd) * 127.5) + 0.5)); + sal_uInt32 nSteps(getFillGradient().getSteps()); + + if(nSteps == 0) + { + nSteps = nMaxSteps; + } + + if(nSteps < 2) + { + nSteps = 2; + } + + if(nSteps > nMaxSteps) + { + nSteps = nMaxSteps; + } + + switch(getFillGradient().getStyle()) + { + case attribute::GRADIENTSTYLE_LINEAR: + { + texture::GeoTexSvxGradientLinear aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getAngle()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + case attribute::GRADIENTSTYLE_AXIAL: + { + texture::GeoTexSvxGradientAxial aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getAngle()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + case attribute::GRADIENTSTYLE_RADIAL: + { + texture::GeoTexSvxGradientRadial aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + case attribute::GRADIENTSTYLE_ELLIPTICAL: + { + texture::GeoTexSvxGradientElliptical aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + case attribute::GRADIENTSTYLE_SQUARE: + { + texture::GeoTexSvxGradientSquare aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + case attribute::GRADIENTSTYLE_RECT: + { + texture::GeoTexSvxGradientRect aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); + aGradient.appendTransformations(rMatrices); + aGradient.appendColors(rColors); + break; + } + } + } + + Primitive2DSequence FillGradientPrimitive2D::createOverlappingFill( + const std::vector< basegfx::B2DHomMatrix >& rMatrices, + const std::vector< basegfx::BColor >& rColors, + const basegfx::B2DPolygon& rUnitPolygon) const + { + // prepare return value + Primitive2DSequence aRetval(rColors.size() ? rMatrices.size() + 1 : rMatrices.size()); + + // create solid fill with start color + if(rColors.size()) + { + // create primitive + const Primitive2DReference xRef( + new PolyPolygonColorPrimitive2D( + basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(getObjectRange())), + rColors[0])); + aRetval[0] = xRef; + } + + // create solid fill steps + for(sal_uInt32 a(0); a < rMatrices.size(); a++) + { + // create part polygon + basegfx::B2DPolygon aNewPoly(rUnitPolygon); + aNewPoly.transform(rMatrices[a]); + + // create solid fill + const Primitive2DReference xRef( + new PolyPolygonColorPrimitive2D( + basegfx::B2DPolyPolygon(aNewPoly), + rColors[a + 1])); + aRetval[a + 1] = xRef; + } + + return aRetval; + } + + Primitive2DSequence FillGradientPrimitive2D::createNonOverlappingFill( + const std::vector< basegfx::B2DHomMatrix >& rMatrices, + const std::vector< basegfx::BColor >& rColors, + const basegfx::B2DPolygon& rUnitPolygon) const + { + // prepare return value + Primitive2DSequence aRetval; + const sal_uInt32 nMatricesSize(rMatrices.size()); + + if(nMatricesSize) + { + basegfx::B2DPolygon aOuterPoly(rUnitPolygon); + aOuterPoly.transform(rMatrices[0]); + basegfx::B2DPolyPolygon aCombinedPolyPoly(aOuterPoly); + const sal_uInt32 nEntryCount(rColors.size() ? rMatrices.size() + 1 : rMatrices.size()); + sal_uInt32 nIndex(0); + + aRetval.realloc(nEntryCount); + + if(rColors.size()) + { + basegfx::B2DRange aOuterPolyRange(aOuterPoly.getB2DRange()); + aOuterPolyRange.expand(getObjectRange()); + aCombinedPolyPoly.append(basegfx::tools::createPolygonFromRect(aOuterPolyRange)); + aRetval[nIndex++] = Primitive2DReference(new PolyPolygonColorPrimitive2D(aCombinedPolyPoly, rColors[0])); + aCombinedPolyPoly = basegfx::B2DPolyPolygon(aOuterPoly); + } + + for(sal_uInt32 a(1); a < nMatricesSize - 1; a++) + { + basegfx::B2DPolygon aInnerPoly(rUnitPolygon); + aInnerPoly.transform(rMatrices[a]); + aCombinedPolyPoly.append(aInnerPoly); + aRetval[nIndex++] = Primitive2DReference(new PolyPolygonColorPrimitive2D(aCombinedPolyPoly, rColors[a])); + aCombinedPolyPoly = basegfx::B2DPolyPolygon(aInnerPoly); + } + + if(rColors.size()) + { + aRetval[nIndex] = Primitive2DReference(new PolyPolygonColorPrimitive2D( + aCombinedPolyPoly, rColors[rColors.size() - 1])); + } + } + + return aRetval; + } + + Primitive2DSequence FillGradientPrimitive2D::createFill(bool bOverlapping) const + { + // prepare shape of the Unit Polygon + basegfx::B2DPolygon aUnitPolygon; + + if(attribute::GRADIENTSTYLE_RADIAL == getFillGradient().getStyle() + || attribute::GRADIENTSTYLE_ELLIPTICAL == getFillGradient().getStyle()) + { + aUnitPolygon = basegfx::tools::createPolygonFromCircle( + basegfx::B2DPoint(0,0), 1); + } + else if(attribute::GRADIENTSTYLE_LINEAR == maFillGradient.getStyle()) + { + aUnitPolygon = basegfx::tools::createPolygonFromRect(basegfx::B2DRange(0, 0, 1, 1)); + } + else + { + aUnitPolygon = basegfx::tools::createPolygonFromRect(basegfx::B2DRange(-1, -1, 1, 1)); + } + + // get the transform matrices and colors (where colors + // will have one more entry that matrices) + std::vector< basegfx::B2DHomMatrix > aMatrices; + std::vector< basegfx::BColor > aColors; + generateMatricesAndColors(aMatrices, aColors); + + if(bOverlapping) + { + return createOverlappingFill(aMatrices, aColors, aUnitPolygon); + } + else + { + return createNonOverlappingFill(aMatrices, aColors, aUnitPolygon); + } + } + + Primitive2DSequence FillGradientPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const + { + // default creates overlapping fill which works with AntiAliasing and without. + // The non-overlapping version does not create single filled polygons, but + // PolyPolygons where each one describes a 'ring' for the gradient such + // that the rings will not overlap. This is useful fir the old XOR-paint + // 'trick' of VCL which is recorded in Metafiles; so this version may be + // used from the MetafilePrimitive2D in it's decomposition. + + if(!getFillGradient().isDefault()) + { + return createFill(true); + } + else + { + return Primitive2DSequence(); + } + } + + FillGradientPrimitive2D::FillGradientPrimitive2D( + const basegfx::B2DRange& rObjectRange, + const attribute::FillGradientAttribute& rFillGradient) + : BufferedDecompositionPrimitive2D(), + maObjectRange(rObjectRange), + maFillGradient(rFillGradient) + { + } + + bool FillGradientPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + if(BufferedDecompositionPrimitive2D::operator==(rPrimitive)) + { + const FillGradientPrimitive2D& rCompare = (FillGradientPrimitive2D&)rPrimitive; + + return (getObjectRange() == rCompare.getObjectRange() + && getFillGradient() == rCompare.getFillGradient()); + } + + 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 |