| /************************************************************** |
| * |
| * 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< drawinglayer::texture::B2DHomMatrixAndBColor >& rEntries, |
| basegfx::BColor& rOutmostColor) const |
| { |
| rEntries.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.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| case attribute::GRADIENTSTYLE_AXIAL: |
| { |
| texture::GeoTexSvxGradientAxial aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getAngle()); |
| aGradient.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| case attribute::GRADIENTSTYLE_RADIAL: |
| { |
| texture::GeoTexSvxGradientRadial aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY()); |
| aGradient.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| case attribute::GRADIENTSTYLE_ELLIPTICAL: |
| { |
| texture::GeoTexSvxGradientElliptical aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); |
| aGradient.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| case attribute::GRADIENTSTYLE_SQUARE: |
| { |
| texture::GeoTexSvxGradientSquare aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); |
| aGradient.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| case attribute::GRADIENTSTYLE_RECT: |
| { |
| texture::GeoTexSvxGradientRect aGradient(getObjectRange(), aStart, aEnd, nSteps, getFillGradient().getBorder(), getFillGradient().getOffsetX(), getFillGradient().getOffsetY(), getFillGradient().getAngle()); |
| aGradient.appendTransformationsAndColors(rEntries, rOutmostColor); |
| break; |
| } |
| } |
| } |
| |
| Primitive2DSequence FillGradientPrimitive2D::createOverlappingFill( |
| const std::vector< drawinglayer::texture::B2DHomMatrixAndBColor >& rEntries, |
| const basegfx::BColor& rOutmostColor, |
| const basegfx::B2DPolygon& rUnitPolygon) const |
| { |
| // prepare return value |
| Primitive2DSequence aRetval(rEntries.size() + 1); |
| |
| // create solid fill with outmost color |
| aRetval[0] = Primitive2DReference( |
| new PolyPolygonColorPrimitive2D( |
| basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(getObjectRange())), |
| rOutmostColor)); |
| |
| // create solid fill steps |
| for(sal_uInt32 a(0); a < rEntries.size(); a++) |
| { |
| // create part polygon |
| basegfx::B2DPolygon aNewPoly(rUnitPolygon); |
| |
| aNewPoly.transform(rEntries[a].maB2DHomMatrix); |
| |
| // create solid fill |
| aRetval[a + 1] = Primitive2DReference( |
| new PolyPolygonColorPrimitive2D( |
| basegfx::B2DPolyPolygon(aNewPoly), |
| rEntries[a].maBColor)); |
| } |
| |
| return aRetval; |
| } |
| |
| Primitive2DSequence FillGradientPrimitive2D::createNonOverlappingFill( |
| const std::vector< drawinglayer::texture::B2DHomMatrixAndBColor >& rEntries, |
| const basegfx::BColor& rOutmostColor, |
| const basegfx::B2DPolygon& rUnitPolygon) const |
| { |
| // prepare return value |
| Primitive2DSequence aRetval(rEntries.size() + 1); |
| |
| // get outmost range from object |
| basegfx::B2DRange aOutmostRange(getObjectRange()); |
| basegfx::B2DPolyPolygon aCombinedPolyPoly; |
| |
| if(rEntries.size()) |
| { |
| // extend aOutmostRange with first polygon |
| basegfx::B2DPolygon aFirstPoly(rUnitPolygon); |
| |
| aFirstPoly.transform(rEntries[0].maB2DHomMatrix); |
| aCombinedPolyPoly.append(aFirstPoly); |
| aOutmostRange.expand(aFirstPoly.getB2DRange()); |
| } |
| |
| // add outmost range to combined polypolygon (in 1st place), create first primitive |
| aCombinedPolyPoly.insert(0, basegfx::tools::createPolygonFromRect(aOutmostRange)); |
| aRetval[0] = Primitive2DReference( |
| new PolyPolygonColorPrimitive2D( |
| aCombinedPolyPoly, |
| rOutmostColor)); |
| |
| if(rEntries.size()) |
| { |
| // reuse first polygon, it's the second one |
| aCombinedPolyPoly.remove(0); |
| |
| for(sal_uInt32 a(0); a < rEntries.size() - 1; a++) |
| { |
| // create next inner polygon, combinbe with last one |
| basegfx::B2DPolygon aNextPoly(rUnitPolygon); |
| |
| aNextPoly.transform(rEntries[a + 1].maB2DHomMatrix); |
| aCombinedPolyPoly.append(aNextPoly); |
| |
| // create primitive with correct color |
| aRetval[a + 1] = Primitive2DReference( |
| new PolyPolygonColorPrimitive2D( |
| aCombinedPolyPoly, |
| rEntries[a].maBColor)); |
| |
| // reuse inner polygon, it's the 2nd one |
| aCombinedPolyPoly.remove(0); |
| } |
| |
| // add last inner polygon with last color |
| aRetval[rEntries.size()] = Primitive2DReference( |
| new PolyPolygonColorPrimitive2D( |
| aCombinedPolyPoly, |
| rEntries[rEntries.size() - 1].maBColor)); |
| } |
| |
| return aRetval; |
| } |
| |
| Primitive2DSequence FillGradientPrimitive2D::createFill(bool bOverlapping) const |
| { |
| // prepare shape of the Unit Polygon |
| basegfx::B2DPolygon aUnitPolygon; |
| |
| switch(getFillGradient().getStyle()) |
| { |
| case attribute::GRADIENTSTYLE_RADIAL: |
| case attribute::GRADIENTSTYLE_ELLIPTICAL: |
| { |
| aUnitPolygon = basegfx::tools::createPolygonFromCircle(basegfx::B2DPoint(0.0, 0.0), 1.0); |
| break; |
| } |
| default: // GRADIENTSTYLE_LINEAR, attribute::GRADIENTSTYLE_AXIAL, attribute::GRADIENTSTYLE_SQUARE, attribute::GRADIENTSTYLE_RECT |
| { |
| aUnitPolygon = basegfx::tools::createPolygonFromRect(basegfx::B2DRange(-1.0, -1.0, 1.0, 1.0)); |
| break; |
| } |
| } |
| |
| // get the transform matrices and colors (where colors |
| // will have one more entry that matrices) |
| std::vector< drawinglayer::texture::B2DHomMatrixAndBColor > aEntries; |
| basegfx::BColor aOutmostColor; |
| |
| generateMatricesAndColors(aEntries, aOutmostColor); |
| |
| if(bOverlapping) |
| { |
| return createOverlappingFill(aEntries, aOutmostColor, aUnitPolygon); |
| } |
| else |
| { |
| return createNonOverlappingFill(aEntries, aOutmostColor, 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()) |
| { |
| static bool bOverlapping(true); // allow to test non-overlapping in the debugger |
| |
| return createFill(bOverlapping); |
| } |
| 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 |
