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| -rw-r--r-- | svx/source/sdr/contact/viewcontactofe3d.cxx | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/svx/source/sdr/contact/viewcontactofe3d.cxx b/svx/source/sdr/contact/viewcontactofe3d.cxx new file mode 100644 index 000000000..809c99d22 --- /dev/null +++ b/svx/source/sdr/contact/viewcontactofe3d.cxx @@ -0,0 +1,195 @@ +/* -*- 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 <sdr/contact/viewcontactofe3d.hxx> +#include <sdr/contact/viewobjectcontactofe3d.hxx> +#include <svx/obj3d.hxx> +#include <drawinglayer/primitive2d/embedded3dprimitive2d.hxx> +#include <svx/sdr/contact/viewcontactofe3dscene.hxx> +#include <svx/scene3d.hxx> +#include <drawinglayer/primitive3d/transformprimitive3d.hxx> +#include <drawinglayer/attribute/sdrsceneattribute3d.hxx> +#include <drawinglayer/attribute/sdrlightingattribute3d.hxx> +#include <drawinglayer/attribute/sdrlightattribute3d.hxx> + +namespace { + +const sdr::contact::ViewContactOfE3dScene* tryToFindVCOfE3DScene( + const sdr::contact::ViewContact& rCandidate, + basegfx::B3DHomMatrix& o_rInBetweenObjectTransform) +{ + const sdr::contact::ViewContactOfE3dScene* pSceneParent = + dynamic_cast< const sdr::contact::ViewContactOfE3dScene* >(rCandidate.GetParentContact()); + + if(pSceneParent) + { + // each 3d object (including in-between scenes) should have a scene as parent + const sdr::contact::ViewContactOfE3dScene* pSceneParentParent = + dynamic_cast< const sdr::contact::ViewContactOfE3dScene* >(pSceneParent->GetParentContact()); + + if(pSceneParentParent) + { + // the parent scene of rCandidate is an in-between scene, call recursively and collect + // the in-between scene's object transformation part in o_rInBetweenObjectTransform + const basegfx::B3DHomMatrix& rSceneParentTransform = pSceneParent->GetE3dScene().GetTransform(); + o_rInBetweenObjectTransform = rSceneParentTransform * o_rInBetweenObjectTransform; + return tryToFindVCOfE3DScene(*pSceneParent, o_rInBetweenObjectTransform); + } + else + { + // the parent scene is the outmost scene + return pSceneParent; + } + } + + // object hierarchy structure is incorrect; no result + return nullptr; +} + +} // end of anonymous namespace + +namespace sdr::contact { + +drawinglayer::primitive2d::Primitive2DContainer ViewContactOfE3d::impCreateWithGivenPrimitive3DContainer( + const drawinglayer::primitive3d::Primitive3DContainer& rxContent3D) const +{ + drawinglayer::primitive2d::Primitive2DContainer xRetval; + + if(!rxContent3D.empty()) + { + // try to get the outmost ViewObjectContactOfE3dScene for this single 3d object, + // the ones on the way there are grouping scenes. Collect the in-between scene's + // transformations to build a correct object transformation for the embedded + // object + basegfx::B3DHomMatrix aInBetweenObjectTransform; + const ViewContactOfE3dScene* pVCOfE3DScene = tryToFindVCOfE3DScene(*this, aInBetweenObjectTransform); + + if(pVCOfE3DScene) + { + basegfx::B3DVector aLightNormal; + const double fShadowSlant(pVCOfE3DScene->getSdrSceneAttribute().getShadowSlant()); + const basegfx::B3DRange& rAllContentRange = pVCOfE3DScene->getAllContentRange3D(); + drawinglayer::geometry::ViewInformation3D aViewInformation3D(pVCOfE3DScene->getViewInformation3D()); + + if(!pVCOfE3DScene->getSdrLightingAttribute().getLightVector().empty()) + { + // get light normal from first light and normalize + aLightNormal = pVCOfE3DScene->getSdrLightingAttribute().getLightVector()[0].getDirection(); + aLightNormal.normalize(); + } + + if(!aInBetweenObjectTransform.isIdentity()) + { + // if aInBetweenObjectTransform is used, create combined ViewInformation3D which + // contains the correct object transformation for the embedded 3d object + aViewInformation3D = drawinglayer::geometry::ViewInformation3D( + aViewInformation3D.getObjectTransformation() * aInBetweenObjectTransform, + aViewInformation3D.getOrientation(), + aViewInformation3D.getProjection(), + aViewInformation3D.getDeviceToView(), + aViewInformation3D.getViewTime(), + aViewInformation3D.getExtendedInformationSequence()); + } + + // create embedded 2d primitive and add. LightNormal and ShadowSlant are needed for evtl. + // 3D shadow extraction for correct B2DRange calculation (shadow is part of the object) + const drawinglayer::primitive2d::Primitive2DReference xReference( + new drawinglayer::primitive2d::Embedded3DPrimitive2D( + rxContent3D, + pVCOfE3DScene->getObjectTransformation(), + aViewInformation3D, + aLightNormal, + fShadowSlant, + rAllContentRange)); + + xRetval = drawinglayer::primitive2d::Primitive2DContainer { xReference }; + } + } + + return xRetval; +} + +ViewContactOfE3d::ViewContactOfE3d(E3dObject& rSdrObject) +: ViewContactOfSdrObj(rSdrObject) +{ +} + +ViewContactOfE3d::~ViewContactOfE3d() +{ +} + +drawinglayer::primitive3d::Primitive3DContainer const & ViewContactOfE3d::getVIP3DSWithoutObjectTransform() const +{ + // local up-to-date checks. Create new list and compare. + drawinglayer::primitive3d::Primitive3DContainer xNew(createViewIndependentPrimitive3DContainer()); + + if(mxViewIndependentPrimitive3DContainer != xNew) + { + // has changed, copy content + const_cast< ViewContactOfE3d* >(this)->mxViewIndependentPrimitive3DContainer = xNew; + } + + // return current Primitive2DContainer + return mxViewIndependentPrimitive3DContainer; +} + +drawinglayer::primitive3d::Primitive3DContainer ViewContactOfE3d::getViewIndependentPrimitive3DContainer() const +{ + // get sequence without object transform + drawinglayer::primitive3d::Primitive3DContainer xRetval(getVIP3DSWithoutObjectTransform()); + + if(!xRetval.empty()) + { + // add object transform if it's used + const basegfx::B3DHomMatrix& rObjectTransform(GetE3dObject().GetTransform()); + + if(!rObjectTransform.isIdentity()) + { + const drawinglayer::primitive3d::Primitive3DReference xReference( + new drawinglayer::primitive3d::TransformPrimitive3D( + rObjectTransform, + xRetval)); + + xRetval = { xReference }; + } + } + + // return current Primitive2DContainer + return xRetval; +} + +drawinglayer::primitive2d::Primitive2DContainer ViewContactOfE3d::createViewIndependentPrimitive2DSequence() const +{ + // also need to create a 2D embedding when the view-independent part is requested, + // see view-dependent part in ViewObjectContactOfE3d::createPrimitive2DSequence + // get 3d primitive vector, isPrimitiveVisible() is done in 3d creator + return impCreateWithGivenPrimitive3DContainer(getViewIndependentPrimitive3DContainer()); +} + +ViewObjectContact& ViewContactOfE3d::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact) +{ + ViewObjectContact* pRetval = new ViewObjectContactOfE3d(rObjectContact, *this); + DBG_ASSERT(pRetval, "ViewContactOfE3d::CreateObjectSpecificViewObjectContact() failed (!)"); + + return *pRetval; +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |