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| -rw-r--r-- | drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx b/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx new file mode 100644 index 000000000..f072df0c3 --- /dev/null +++ b/drawinglayer/source/primitive2d/embedded3dprimitive2d.cxx @@ -0,0 +1,146 @@ +/* -*- 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/embedded3dprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/color/bcolor.hxx> +#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> +#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx> +#include <drawinglayer/geometry/viewinformation3d.hxx> +#include <processor3d/shadow3dextractor.hxx> + + +using namespace com::sun::star; + + +namespace drawinglayer::primitive2d +{ + bool Embedded3DPrimitive2D::impGetShadow3D() const + { + // create on demand + if(!mbShadow3DChecked && !getChildren3D().empty()) + { + // create shadow extraction processor + processor3d::Shadow3DExtractingProcessor aShadowProcessor( + getViewInformation3D(), + getObjectTransformation(), + getLightNormal(), + getShadowSlant(), + getScene3DRange()); + + // process local primitives + aShadowProcessor.process(getChildren3D()); + + // fetch result and set checked flag + const_cast< Embedded3DPrimitive2D* >(this)->maShadowPrimitives = aShadowProcessor.getPrimitive2DSequence(); + const_cast< Embedded3DPrimitive2D* >(this)->mbShadow3DChecked = true; + } + + // return if there are shadow primitives + return !maShadowPrimitives.empty(); + } + + void Embedded3DPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const + { + // use info to create a yellow 2d rectangle, similar to empty 3d scenes and/or groups + const basegfx::B2DRange aLocal2DRange(getB2DRange(rViewInformation)); + const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(aLocal2DRange)); + const basegfx::BColor aYellow(1.0, 1.0, 0.0); + rContainer.push_back(new PolygonHairlinePrimitive2D(aOutline, aYellow)); + } + + Embedded3DPrimitive2D::Embedded3DPrimitive2D( + const primitive3d::Primitive3DContainer& rxChildren3D, + const basegfx::B2DHomMatrix& rObjectTransformation, + const geometry::ViewInformation3D& rViewInformation3D, + const basegfx::B3DVector& rLightNormal, + double fShadowSlant, + const basegfx::B3DRange& rScene3DRange) + : mxChildren3D(rxChildren3D), + maObjectTransformation(rObjectTransformation), + maViewInformation3D(rViewInformation3D), + maLightNormal(rLightNormal), + mfShadowSlant(fShadowSlant), + maScene3DRange(rScene3DRange), + mbShadow3DChecked(false) + { + maLightNormal.normalize(); + } + + bool Embedded3DPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const + { + if(BufferedDecompositionPrimitive2D::operator==(rPrimitive)) + { + const Embedded3DPrimitive2D& rCompare = static_cast< const Embedded3DPrimitive2D& >(rPrimitive); + + return (getChildren3D() == rCompare.getChildren3D() + && getObjectTransformation() == rCompare.getObjectTransformation() + && getViewInformation3D() == rCompare.getViewInformation3D() + && getLightNormal() == rCompare.getLightNormal() + && getShadowSlant() == rCompare.getShadowSlant() + && getScene3DRange() == rCompare.getScene3DRange()); + } + + return false; + } + + basegfx::B2DRange Embedded3DPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const + { + if(maB2DRange.isEmpty()) + { + // use the 3d transformation stack to create a projection of the 3D range + basegfx::B3DRange a3DRange(getChildren3D().getB3DRange(getViewInformation3D())); + a3DRange.transform(getViewInformation3D().getObjectToView()); + + // create 2d range from projected 3d and transform with scene's object transformation + basegfx::B2DRange aNewRange; + aNewRange.expand(basegfx::B2DPoint(a3DRange.getMinX(), a3DRange.getMinY())); + aNewRange.expand(basegfx::B2DPoint(a3DRange.getMaxX(), a3DRange.getMaxY())); + aNewRange.transform(getObjectTransformation()); + + // check for 3D shadows and their 2D projections. If those exist, they need to be + // taken into account + if(impGetShadow3D()) + { + const basegfx::B2DRange aShadow2DRange(maShadowPrimitives.getB2DRange(rViewInformation)); + + if(!aShadow2DRange.isEmpty()) + { + aNewRange.expand(aShadow2DRange); + } + } + + // assign to buffered value + const_cast< Embedded3DPrimitive2D* >(this)->maB2DRange = aNewRange; + } + + return maB2DRange; + } + + // provide unique ID + sal_uInt32 Embedded3DPrimitive2D::getPrimitive2DID() const + { + return PRIMITIVE2D_ID_EMBEDDED3DPRIMITIVE2D; + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |