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Diffstat (limited to 'drawinglayer/source/primitive2d/patternfillprimitive2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/patternfillprimitive2d.cxx | 370 |
1 files changed, 370 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/patternfillprimitive2d.cxx b/drawinglayer/source/primitive2d/patternfillprimitive2d.cxx new file mode 100644 index 000000000..b667545b5 --- /dev/null +++ b/drawinglayer/source/primitive2d/patternfillprimitive2d.cxx @@ -0,0 +1,370 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#include <drawinglayer/primitive2d/patternfillprimitive2d.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> +#include <drawinglayer/primitive2d/transformprimitive2d.hxx> +#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <texture/texture.hxx> +#include <drawinglayer/primitive2d/maskprimitive2d.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> +#include <toolkit/helper/vclunohelper.hxx> + +#include <drawinglayer/converters.hxx> + +using namespace com::sun::star; + +#define MAXIMUM_SQUARE_LENGTH (186.0) +#define MINIMUM_SQUARE_LENGTH (16.0) +#define MINIMUM_TILES_LENGTH (3) + +namespace drawinglayer::primitive2d +{ + void PatternFillPrimitive2D::calculateNeededDiscreteBufferSize( + sal_uInt32& rWidth, + sal_uInt32& rHeight, + const geometry::ViewInformation2D& rViewInformation) const + { + // reset parameters + rWidth = rHeight = 0; + + // check if resolution is in the range which may be buffered + const basegfx::B2DPolyPolygon& rMaskPolygon = getMask(); + const basegfx::B2DRange aMaskRange(rMaskPolygon.getB2DRange()); + + // get discrete rounded up square size of a single tile + const basegfx::B2DHomMatrix aMaskRangeTransformation( + basegfx::utils::createScaleTranslateB2DHomMatrix( + aMaskRange.getRange(), + aMaskRange.getMinimum())); + const basegfx::B2DHomMatrix aTransform( + rViewInformation.getObjectToViewTransformation() * aMaskRangeTransformation); + const basegfx::B2DPoint aTopLeft(aTransform * getReferenceRange().getMinimum()); + const basegfx::B2DPoint aX(aTransform * basegfx::B2DPoint(getReferenceRange().getMaxX(), getReferenceRange().getMinY())); + const basegfx::B2DPoint aY(aTransform * basegfx::B2DPoint(getReferenceRange().getMinX(), getReferenceRange().getMaxY())); + const double fW(basegfx::B2DVector(aX - aTopLeft).getLength()); + const double fH(basegfx::B2DVector(aY - aTopLeft).getLength()); + const double fSquare(fW * fH); + + if(fSquare <= 0.0) + return; + + // check if less than a maximum square pixels is used + static const sal_uInt32 fMaximumSquare(MAXIMUM_SQUARE_LENGTH * MAXIMUM_SQUARE_LENGTH); + + if(fSquare >= fMaximumSquare) + return; + + // calculate needed number of tiles and check if used more than a minimum count + const texture::GeoTexSvxTiled aTiling(getReferenceRange()); + const sal_uInt32 nTiles(aTiling.getNumberOfTiles()); + static const sal_uInt32 nMinimumTiles(MINIMUM_TILES_LENGTH * MINIMUM_TILES_LENGTH); + + if(nTiles < nMinimumTiles) + return; + + rWidth = basegfx::fround(ceil(fW)); + rHeight = basegfx::fround(ceil(fH)); + static const sal_uInt32 fMinimumSquare(MINIMUM_SQUARE_LENGTH * MINIMUM_SQUARE_LENGTH); + + if(fSquare < fMinimumSquare) + { + const double fRel(fW/fH); + rWidth = basegfx::fround(sqrt(fMinimumSquare * fRel)); + rHeight = basegfx::fround(sqrt(fMinimumSquare / fRel)); + } + } + + void PatternFillPrimitive2D::getTileSize( + sal_uInt32& rWidth, + sal_uInt32& rHeight, + const geometry::ViewInformation2D& rViewInformation) const + { + const basegfx::B2DRange aMaskRange(getMask().getB2DRange()); + + // get discrete rounded up square size of a single tile + const basegfx::B2DHomMatrix aMaskRangeTransformation( + basegfx::utils::createScaleTranslateB2DHomMatrix( + aMaskRange.getRange(), + aMaskRange.getMinimum())); + const basegfx::B2DHomMatrix aTransform( + rViewInformation.getObjectToViewTransformation() * aMaskRangeTransformation); + const basegfx::B2DPoint aTopLeft(aTransform * getReferenceRange().getMinimum()); + const basegfx::B2DPoint aX(aTransform * basegfx::B2DPoint(getReferenceRange().getMaxX(), getReferenceRange().getMinY())); + const basegfx::B2DPoint aY(aTransform * basegfx::B2DPoint(getReferenceRange().getMinX(), getReferenceRange().getMaxY())); + const double fW(basegfx::B2DVector(aX - aTopLeft).getLength()); + const double fH(basegfx::B2DVector(aY - aTopLeft).getLength()); + + rWidth = basegfx::fround(ceil(fW)); + rHeight = basegfx::fround(ceil(fH)); + } + + Primitive2DContainer PatternFillPrimitive2D::createContent(const geometry::ViewInformation2D& rViewInformation) const + { + Primitive2DContainer aContent; + + // see if buffering is wanted. If so, create buffered content in given resolution + if(0 != mnDiscreteWidth && 0 != mnDiscreteHeight) + { + const geometry::ViewInformation2D aViewInformation2D; + primitive2d::Primitive2DReference xEmbedRef( + new primitive2d::TransformPrimitive2D( + basegfx::utils::createScaleB2DHomMatrix(mnDiscreteWidth, mnDiscreteHeight), + Primitive2DContainer(getChildren()))); + primitive2d::Primitive2DContainer xEmbedSeq { xEmbedRef }; + + const BitmapEx aBitmapEx( + convertToBitmapEx( + std::move(xEmbedSeq), + aViewInformation2D, + mnDiscreteWidth, + mnDiscreteHeight, + mnDiscreteWidth * mnDiscreteHeight)); + + if(!aBitmapEx.IsEmpty()) + { + const Size& rBmpPix = aBitmapEx.GetSizePixel(); + + if(rBmpPix.Width() > 0 && rBmpPix.Height() > 0) + { + const primitive2d::Primitive2DReference xEmbedRefBitmap( + new primitive2d::BitmapPrimitive2D( + VCLUnoHelper::CreateVCLXBitmap(aBitmapEx), + basegfx::B2DHomMatrix())); + aContent = primitive2d::Primitive2DContainer { xEmbedRefBitmap }; + } + } + } + + if(aContent.empty()) + { + // buffering was not tried or did fail - reset remembered buffered size + // in any case + PatternFillPrimitive2D* pThat = const_cast< PatternFillPrimitive2D* >(this); + pThat->mnDiscreteWidth = pThat->mnDiscreteHeight = 0; + + // use children as default context + aContent = getChildren(); + + // check if content needs to be clipped + const basegfx::B2DRange aUnitRange(0.0, 0.0, 1.0, 1.0); + const basegfx::B2DRange aContentRange(aContent.getB2DRange(rViewInformation)); + + if(!aUnitRange.isInside(aContentRange)) + { + const Primitive2DReference xRef( + new MaskPrimitive2D( + basegfx::B2DPolyPolygon(basegfx::utils::createPolygonFromRect(aUnitRange)), + std::move(aContent))); + + aContent = Primitive2DContainer { xRef }; + } + } + + return aContent; + } + + // create buffered content in given resolution + BitmapEx PatternFillPrimitive2D::createTileImage(sal_uInt32 nWidth, sal_uInt32 nHeight) const + { + const geometry::ViewInformation2D aViewInformation2D; + Primitive2DContainer aContent(createContent(aViewInformation2D)); + const primitive2d::Primitive2DReference xEmbedRef( + new primitive2d::TransformPrimitive2D( + basegfx::utils::createScaleB2DHomMatrix(nWidth, nHeight), + std::move(aContent))); + primitive2d::Primitive2DContainer xEmbedSeq { xEmbedRef }; + + return convertToBitmapEx( + std::move(xEmbedSeq), + aViewInformation2D, + nWidth, + nHeight, + nWidth * nHeight); + } + + void PatternFillPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const + { + Primitive2DContainer aRetval; + + if(getChildren().empty()) + return; + + if(!(!getReferenceRange().isEmpty() && getReferenceRange().getWidth() > 0.0 && getReferenceRange().getHeight() > 0.0)) + return; + + const basegfx::B2DRange aMaskRange(getMask().getB2DRange()); + + if(!(!aMaskRange.isEmpty() && aMaskRange.getWidth() > 0.0 && aMaskRange.getHeight() > 0.0)) + return; + + // create tiling matrices + std::vector< basegfx::B2DHomMatrix > aMatrices; + texture::GeoTexSvxTiled aTiling(getReferenceRange()); + + aTiling.appendTransformations(aMatrices); + + // create content + Primitive2DContainer aContent(createContent(rViewInformation)); + + // resize result + aRetval.resize(aMatrices.size()); + + // create one primitive for each matrix + for(size_t a(0); a < aMatrices.size(); a++) + { + aRetval[a] = new TransformPrimitive2D( + aMatrices[a], + Primitive2DContainer(aContent)); + } + + // transform result which is in unit coordinates to mask's object coordinates + { + const basegfx::B2DHomMatrix aMaskTransform( + basegfx::utils::createScaleTranslateB2DHomMatrix( + aMaskRange.getRange(), + aMaskRange.getMinimum())); + + Primitive2DReference xRef( + new TransformPrimitive2D( + aMaskTransform, + std::move(aRetval))); + + aRetval = Primitive2DContainer { xRef }; + } + + // embed result in mask + { + rContainer.push_back( + new MaskPrimitive2D( + getMask(), + std::move(aRetval))); + } + } + + PatternFillPrimitive2D::PatternFillPrimitive2D( + const basegfx::B2DPolyPolygon& rMask, + Primitive2DContainer&& rChildren, + const basegfx::B2DRange& rReferenceRange) + : maMask(rMask), + maChildren(std::move(rChildren)), + maReferenceRange(rReferenceRange), + mnDiscreteWidth(0), + mnDiscreteHeight(0) + { + } + + bool PatternFillPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + if(BufferedDecompositionPrimitive2D::operator==(rPrimitive)) + { + const PatternFillPrimitive2D& rCompare = static_cast< const PatternFillPrimitive2D& >(rPrimitive); + + return (getMask() == rCompare.getMask() + && getChildren() == rCompare.getChildren() + && getReferenceRange() == rCompare.getReferenceRange()); + } + + return false; + } + + basegfx::B2DRange PatternFillPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /* rViewInformation */ ) const + { + return getMask().getB2DRange(); + } + + void PatternFillPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // The existing buffered decomposition uses a buffer in the remembered + // size or none if sizes are zero. Get new needed sizes which depend on + // the given ViewInformation + bool bResetBuffering = false; + sal_uInt32 nW(0); + sal_uInt32 nH(0); + calculateNeededDiscreteBufferSize(nW, nH, rViewInformation); + const bool bBufferingCurrentlyUsed(0 != mnDiscreteWidth && 0 != mnDiscreteHeight); + const bool bBufferingNextUsed(0 != nW && 0 != nH); + + if(bBufferingNextUsed) + { + // buffering is now possible + if(bBufferingCurrentlyUsed) + { + if(nW > mnDiscreteWidth || nH > mnDiscreteHeight) + { + // Higher resolution is needed than used in the existing buffered + // decomposition - create new one + bResetBuffering = true; + } + else if(double(nW * nH) / double(mnDiscreteWidth * mnDiscreteHeight) <= 0.5) + { + // Size has shrunk for 50% or more - it's worth to refresh the buffering + // to spare some resources + bResetBuffering = true; + } + } + else + { + // currently no buffering used - reset evtl. unbuffered + // decomposition to start buffering + bResetBuffering = true; + } + } + else + { + // buffering is no longer possible + if(bBufferingCurrentlyUsed) + { + // reset decomposition to allow creation of unbuffered one + bResetBuffering = true; + } + } + + if(bResetBuffering) + { + PatternFillPrimitive2D* pThat = const_cast< PatternFillPrimitive2D* >(this); + pThat->mnDiscreteWidth = nW; + pThat->mnDiscreteHeight = nH; + pThat->setBuffered2DDecomposition(Primitive2DContainer()); + } + + // call parent + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + + sal_Int64 PatternFillPrimitive2D::estimateUsage() + { + size_t nRet(0); + for (auto& it : getChildren()) + if (it) + nRet += it->estimateUsage(); + return nRet; + } + + // provide unique ID + sal_uInt32 PatternFillPrimitive2D::getPrimitive2DID() const + { + return PRIMITIVE2D_ID_PATTERNFILLPRIMITIVE2D; + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |