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/* -*- 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: */
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