/* -*- 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 #include #include #include #include #include #include #include #include #include #include using namespace com::sun::star; #define MAXIMUM_SQUARE_LENGTH (186.0) #define MINIMUM_SQUARE_LENGTH (16.0) #define MINIMUM_TILES_LENGTH (3) namespace drawinglayer { namespace 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) { // check if less than a maximum square pixels is used static const sal_uInt32 fMaximumSquare(MAXIMUM_SQUARE_LENGTH * MAXIMUM_SQUARE_LENGTH); if(fSquare < fMaximumSquare) { // 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) { 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)); } } } } } Primitive2DContainer PatternFillPrimitive2D::createContent(const geometry::ViewInformation2D& rViewInformation) const { Primitive2DContainer aContent; // see if buffering is wanted. it is wanted, create buffered content in given resolution if(0 != mnDiscreteWidth && 0 != mnDiscreteHeight) { const geometry::ViewInformation2D aViewInformation2D; const primitive2d::Primitive2DReference xEmbedRef( new primitive2d::TransformPrimitive2D( basegfx::utils::createScaleB2DHomMatrix(mnDiscreteWidth, mnDiscreteHeight), getChildren())); const primitive2d::Primitive2DContainer xEmbedSeq { xEmbedRef }; const BitmapEx aBitmapEx( convertToBitmapEx( 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( 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(getChildren().getB2DRange(rViewInformation)); if(!aUnitRange.isInside(aContentRange)) { const Primitive2DReference xRef( new MaskPrimitive2D( basegfx::B2DPolyPolygon(basegfx::utils::createPolygonFromRect(aUnitRange)), aContent)); aContent = Primitive2DContainer { xRef }; } } return aContent; } void PatternFillPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const { Primitive2DContainer aRetval; if(!getChildren().empty()) { if(!getReferenceRange().isEmpty() && getReferenceRange().getWidth() > 0.0 && getReferenceRange().getHeight() > 0.0) { const basegfx::B2DRange aMaskRange(getMask().getB2DRange()); if(!aMaskRange.isEmpty() && aMaskRange.getWidth() > 0.0 && aMaskRange.getHeight() > 0.0) { // create tiling matrices std::vector< basegfx::B2DHomMatrix > aMatrices; texture::GeoTexSvxTiled aTiling(getReferenceRange()); aTiling.appendTransformations(aMatrices); // create content const 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], aContent); } // transform result which is in unit coordinates to mask's object coordinates { const basegfx::B2DHomMatrix aMaskTransform( basegfx::utils::createScaleTranslateB2DHomMatrix( aMaskRange.getRange(), aMaskRange.getMinimum())); const Primitive2DReference xRef( new TransformPrimitive2D( aMaskTransform, aRetval)); aRetval = Primitive2DContainer { xRef }; } // embed result in mask { rContainer.push_back( new MaskPrimitive2D( getMask(), aRetval)); } } } } } PatternFillPrimitive2D::PatternFillPrimitive2D( const basegfx::B2DPolyPolygon& rMask, const Primitive2DContainer& rChildren, const basegfx::B2DRange& rReferenceRange) : BufferedDecompositionPrimitive2D(), maMask(rMask), maChildren(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 bufferd 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 SAL_CALL PatternFillPrimitive2D::estimateUsage() { size_t nRet(0); for (auto& it : getChildren()) { uno::Reference const xAcc(it, uno::UNO_QUERY); if (xAcc.is()) { nRet += xAcc->estimateUsage(); } } return nRet; } // provide unique ID ImplPrimitive2DIDBlock(PatternFillPrimitive2D, PRIMITIVE2D_ID_PATTERNFILLPRIMITIVE2D) } // end of namespace primitive2d } // end of namespace drawinglayer /* vim:set shiftwidth=4 softtabstop=4 expandtab: */