/* -*- 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 "surfaceproxy.hxx" namespace canvas { SurfaceProxy::SurfaceProxy( std::shared_ptr xBuffer, PageManagerSharedPtr xPageManager ) : mpPageManager(std::move( xPageManager )), mpBuffer(std::move( xBuffer )) { const ::basegfx::B2ISize aImageSize(mpBuffer->getWidth(),mpBuffer->getHeight()); const ::basegfx::B2ISize aPageSize(mpPageManager->getPageSize()); const sal_Int32 aPageSizeX(aPageSize.getX()); const sal_Int32 aPageSizeY(aPageSize.getY()); const sal_Int32 aImageSizeX(aImageSize.getX()); const sal_Int32 aImageSizeY(aImageSize.getY()); // see if the size of the colorbuffer is larger than the size // of a single page. if this is the case we divide the // colorbuffer into as many surfaces as we need to get the // whole area distributed. otherwise (the colorbuffer is // smaller than the size of a single page) we search for free // pages or create a new one. // the incoming image is too large to fit into a single // page. strategy: we split the image into rectangular // areas that are as large as the maximum page size // dictates and follow the strategy for fitting images. size_t dwNumSurfaces(0); for(sal_Int32 y=0; y( mpPageManager, mpBuffer, aOffset, aSize)); } } } void SurfaceProxy::setColorBufferDirty() { for( const auto& rSurfacePtr : maSurfaceList ) rSurfacePtr->setColorBufferDirty(); } bool SurfaceProxy::draw( double fAlpha, const ::basegfx::B2DPoint& rPos, const ::basegfx::B2DHomMatrix& rTransform ) { for( const auto& rSurfacePtr : maSurfaceList ) rSurfacePtr->draw( fAlpha, rPos, rTransform ); return true; } bool SurfaceProxy::draw( double fAlpha, const ::basegfx::B2DPoint& rPos, const ::basegfx::B2DRange& rArea, const ::basegfx::B2DHomMatrix& rTransform ) { for( const auto& rSurfacePtr : maSurfaceList ) rSurfacePtr->drawRectangularArea( fAlpha, rPos, rArea, rTransform ); return true; } bool SurfaceProxy::draw( double fAlpha, const ::basegfx::B2DPoint& rPos, const ::basegfx::B2DPolyPolygon& rClipPoly, const ::basegfx::B2DHomMatrix& rTransform ) { const ::basegfx::triangulator::B2DTriangleVector& rTriangulatedVector( ::basegfx::triangulator::triangulate(rClipPoly)); // we have now an explicit ::B2DTriangle and ::B2DTriangleVector, // but I do not know enough about 'drawWithClip' or 'clipTriangleListOnRange' // to adapt to that. Convert back to old three-point-in-polygon convention ::basegfx::B2DPolygon aTriangulatedPolygon; aTriangulatedPolygon.reserve(rTriangulatedVector.size() * 3); for(const auto& rCandidate : rTriangulatedVector) { aTriangulatedPolygon.append(rCandidate.getA()); aTriangulatedPolygon.append(rCandidate.getB()); aTriangulatedPolygon.append(rCandidate.getC()); } // dump polygons SAL_INFO("canvas", "Original clip polygon: " << basegfx::utils::exportToSvgD( rClipPoly, true, true, false )); SAL_INFO("canvas", "Triangulated polygon: " << basegfx::utils::exportToSvgD(basegfx::B2DPolyPolygon(aTriangulatedPolygon), true, true, false )); for( const auto& rSurfacePtr : maSurfaceList ) rSurfacePtr->drawWithClip( fAlpha, rPos, aTriangulatedPolygon, rTransform ); return true; } } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */