| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
