/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the Collabora Office 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 using namespace com::sun::star; namespace drawinglayer::geometry { /** Implementation class for ViewInformation3D */ class ImpViewInformation3D { private: // ViewInformation3D implementation can change refcount, so we have only // two memory regions for pairs of ViewInformation3D/ImpViewInformation3D friend class ::drawinglayer::geometry::ViewInformation3D; // the 3D transformations // Object to World. This may change and being adapted when entering 3D transformation // groups basegfx::B3DHomMatrix maObjectTransformation; // World to Camera. This includes VRP, VPN and VUV camera coordinate system basegfx::B3DHomMatrix maOrientation; // Camera to Device with X,Y and Z [-1.0 .. 1.0]. This is the // 3D to 2D projection which may be parallel or perspective. When it is perspective, // the last line of the homogen matrix will NOT be unused basegfx::B3DHomMatrix maProjection; // Device to View with X,Y and Z [0.0 .. 1.0]. This converts from -1 to 1 coordinates // in camera coordinate system to 0 to 1 in unit 2D coordinates. This way it stays // view-independent. To get discrete coordinates, the 2D transformation of a scene // as 2D object needs to be involved basegfx::B3DHomMatrix maDeviceToView; // Object to View is the linear combination of all four transformations. It's // buffered to avoid too much matrix multiplying and created on demand basegfx::B3DHomMatrix maObjectToView; // the point in time double mfViewTime; // the extra PropertyValues; does not contain the transformations cpo::uno::Sequence< beans::PropertyValue > mxExtendedInformation; // the local UNO API strings static constexpr OUString OBJECT_TRANSFORMATION = u"ObjectTransformation"_ustr; static constexpr OUString ORIENTATION = u"Orientation"_ustr; static constexpr OUString PROJECTION = u"Projection"_ustr; static constexpr OUString PROJECTION30 = u"Projection30"_ustr; static constexpr OUString PROJECTION31 = u"Projection31"_ustr; static constexpr OUString PROJECTION32 = u"Projection32"_ustr; static constexpr OUString PROJECTION33 = u"Projection33"_ustr; static constexpr OUString DEVICE_TO_VIEW = u"DeviceToView"_ustr; static constexpr OUString TIME = u"Time"_ustr; // a central PropertyValue parsing method to allow transportation of // all ViewParameters using UNO API void impInterpretPropertyValues(const cpo::uno::Sequence< beans::PropertyValue >& rViewParameters) { if(!rViewParameters.hasElements()) return; const sal_Int32 nCount(rViewParameters.getLength()); sal_Int32 nExtendedInsert(0); // prepare extended information for filtering. Maximum size is nCount mxExtendedInformation.realloc(nCount); auto pExtendedInformation = mxExtendedInformation.getArray(); for(sal_Int32 a(0); a < nCount; a++) { const beans::PropertyValue& rProp = rViewParameters[a]; if(rProp.Name == OBJECT_TRANSFORMATION) { css::geometry::AffineMatrix3D aAffineMatrix3D; rProp.Value >>= aAffineMatrix3D; maObjectTransformation = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D); } else if(rProp.Name == ORIENTATION) { css::geometry::AffineMatrix3D aAffineMatrix3D; rProp.Value >>= aAffineMatrix3D; maOrientation = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D); } else if(rProp.Name == PROJECTION) { // projection may be defined using a frustum in which case the last line of // the 4x4 matrix is not (0,0,0,1). Since AffineMatrix3D does not support that, // these four values need to be treated extra const double f_30(maProjection.get(3, 0)); const double f_31(maProjection.get(3, 1)); const double f_32(maProjection.get(3, 2)); const double f_33(maProjection.get(3, 3)); css::geometry::AffineMatrix3D aAffineMatrix3D; rProp.Value >>= aAffineMatrix3D; maProjection = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D); maProjection.set(3, 0, f_30); maProjection.set(3, 1, f_31); maProjection.set(3, 2, f_32); maProjection.set(3, 3, f_33); } else if(rProp.Name == PROJECTION30) { double f_30(0.0); rProp.Value >>= f_30; maProjection.set(3, 0, f_30); } else if(rProp.Name == PROJECTION31) { double f_31(0.0); rProp.Value >>= f_31; maProjection.set(3, 1, f_31); } else if(rProp.Name == PROJECTION32) { double f_32(0.0); rProp.Value >>= f_32; maProjection.set(3, 2, f_32); } else if(rProp.Name == PROJECTION33) { double f_33(1.0); rProp.Value >>= f_33; maProjection.set(3, 3, f_33); } else if(rProp.Name == DEVICE_TO_VIEW) { css::geometry::AffineMatrix3D aAffineMatrix3D; rProp.Value >>= aAffineMatrix3D; maDeviceToView = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D); } else if(rProp.Name == TIME) { rProp.Value >>= mfViewTime; } else { // extra information; add to filtered information pExtendedInformation[nExtendedInsert++] = rProp; } } // extra information size is now known; realloc to final size mxExtendedInformation.realloc(nExtendedInsert); } public: ImpViewInformation3D( basegfx::B3DHomMatrix aObjectTransformation, basegfx::B3DHomMatrix aOrientation, basegfx::B3DHomMatrix aProjection, basegfx::B3DHomMatrix aDeviceToView, double fViewTime, const cpo::uno::Sequence< beans::PropertyValue >& rExtendedParameters) : maObjectTransformation(std::move(aObjectTransformation)), maOrientation(std::move(aOrientation)), maProjection(std::move(aProjection)), maDeviceToView(std::move(aDeviceToView)), mfViewTime(fViewTime) { impInterpretPropertyValues(rExtendedParameters); } explicit ImpViewInformation3D(const cpo::uno::Sequence< beans::PropertyValue >& rViewParameters) : mfViewTime() { impInterpretPropertyValues(rViewParameters); } ImpViewInformation3D() : mfViewTime() { } const basegfx::B3DHomMatrix& getObjectTransformation() const { return maObjectTransformation; } const basegfx::B3DHomMatrix& getOrientation() const { return maOrientation; } const basegfx::B3DHomMatrix& getProjection() const { return maProjection; } const basegfx::B3DHomMatrix& getDeviceToView() const { return maDeviceToView; } double getViewTime() const { return mfViewTime; } const basegfx::B3DHomMatrix& getObjectToView() const { // on demand WorldToView creation if(maObjectToView.isIdentity()) { const_cast< ImpViewInformation3D* >(this)->maObjectToView = maDeviceToView * maProjection * maOrientation * maObjectTransformation; } return maObjectToView; } const cpo::uno::Sequence< beans::PropertyValue >& getExtendedInformationSequence() const { return mxExtendedInformation; } bool operator==(const ImpViewInformation3D& rCandidate) const { return (maObjectTransformation == rCandidate.maObjectTransformation && maOrientation == rCandidate.maOrientation && maProjection == rCandidate.maProjection && maDeviceToView == rCandidate.maDeviceToView && mfViewTime == rCandidate.mfViewTime && mxExtendedInformation == rCandidate.mxExtendedInformation); } }; } // end of namespace drawinglayer::geometry namespace drawinglayer::geometry { namespace { ViewInformation3D::ImplType& theGlobalDefault() { static ViewInformation3D::ImplType SINGLETON; return SINGLETON; } } ViewInformation3D::ViewInformation3D( const basegfx::B3DHomMatrix& rObjectObjectTransformation, const basegfx::B3DHomMatrix& rOrientation, const basegfx::B3DHomMatrix& rProjection, const basegfx::B3DHomMatrix& rDeviceToView, double fViewTime, const cpo::uno::Sequence< beans::PropertyValue >& rExtendedParameters) : mpViewInformation3D(ImpViewInformation3D( rObjectObjectTransformation, rOrientation, rProjection, rDeviceToView, fViewTime, rExtendedParameters)) { } ViewInformation3D::ViewInformation3D(const cpo::uno::Sequence< beans::PropertyValue >& rViewParameters) : mpViewInformation3D(ImpViewInformation3D(rViewParameters)) { } ViewInformation3D::ViewInformation3D() : mpViewInformation3D(theGlobalDefault()) { } ViewInformation3D::ViewInformation3D(const ViewInformation3D&) = default; ViewInformation3D::ViewInformation3D(ViewInformation3D&&) = default; ViewInformation3D::~ViewInformation3D() = default; bool ViewInformation3D::isDefault() const { return mpViewInformation3D.same_object(theGlobalDefault()); } ViewInformation3D& ViewInformation3D::operator=(const ViewInformation3D&) = default; ViewInformation3D& ViewInformation3D::operator=(ViewInformation3D&&) = default; bool ViewInformation3D::operator==(const ViewInformation3D& rCandidate) const { return rCandidate.mpViewInformation3D == mpViewInformation3D; } const basegfx::B3DHomMatrix& ViewInformation3D::getObjectTransformation() const { return mpViewInformation3D->getObjectTransformation(); } const basegfx::B3DHomMatrix& ViewInformation3D::getOrientation() const { return mpViewInformation3D->getOrientation(); } const basegfx::B3DHomMatrix& ViewInformation3D::getProjection() const { return mpViewInformation3D->getProjection(); } const basegfx::B3DHomMatrix& ViewInformation3D::getDeviceToView() const { return mpViewInformation3D->getDeviceToView(); } const basegfx::B3DHomMatrix& ViewInformation3D::getObjectToView() const { return mpViewInformation3D->getObjectToView(); } double ViewInformation3D::getViewTime() const { return mpViewInformation3D->getViewTime(); } const cpo::uno::Sequence< beans::PropertyValue >& ViewInformation3D::getExtendedInformationSequence() const { return mpViewInformation3D->getExtendedInformationSequence(); } } // end of namespace /* vim:set shiftwidth=4 softtabstop=4 expandtab: */