Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 366 insertions, 0 deletions

diff --git a/drawinglayer/source/geometry/viewinformation3d.cxx b/drawinglayer/source/geometry/viewinformation3d.cxx
new file mode 100644
index 000000000..a2a444ab3
--- /dev/null
+++ b/drawinglayer/source/geometry/viewinformation3d.cxx
@@ -0,0 +1,366 @@
+/* -*- 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/geometry/viewinformation3d.hxx>
+#include <basegfx/matrix/b3dhommatrix.hxx>
+#include <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/geometry/AffineMatrix3D.hpp>
+#include <basegfx/utils/canvastools.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+
+
+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
+            uno::Sequence< beans::PropertyValue >       mxExtendedInformation;
+
+            // the local UNO API strings
+            static OUString getNamePropertyObjectTransformation()
+            {
+                return "ObjectTransformation";
+            }
+
+            static OUString getNamePropertyOrientation()
+            {
+                return "Orientation";
+            }
+
+            static OUString getNamePropertyProjection()
+            {
+                return "Projection";
+            }
+
+            static OUString getNamePropertyProjection_30()
+            {
+                return "Projection30";
+            }
+
+            static OUString getNamePropertyProjection_31()
+            {
+                return "Projection31";
+            }
+
+            static OUString getNamePropertyProjection_32()
+            {
+                return "Projection32";
+            }
+
+            static OUString getNamePropertyProjection_33()
+            {
+                return "Projection33";
+            }
+
+            static OUString getNamePropertyDeviceToView()
+            {
+                return "DeviceToView";
+            }
+
+            static OUString getNamePropertyTime()
+            {
+                return "Time";
+            }
+
+            // a central PropertyValue parsing method to allow transportation of
+            // all ViewParameters using UNO API
+            void impInterpretPropertyValues(const 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 == getNamePropertyObjectTransformation())
+                    {
+                        css::geometry::AffineMatrix3D aAffineMatrix3D;
+                        rProp.Value >>= aAffineMatrix3D;
+                        maObjectTransformation = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D);
+                    }
+                    else if(rProp.Name == getNamePropertyOrientation())
+                    {
+                        css::geometry::AffineMatrix3D aAffineMatrix3D;
+                        rProp.Value >>= aAffineMatrix3D;
+                        maOrientation = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D);
+                    }
+                    else if(rProp.Name == getNamePropertyProjection())
+                    {
+                        // 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 == getNamePropertyProjection_30())
+                    {
+                        double f_30(0.0);
+                        rProp.Value >>= f_30;
+                        maProjection.set(3, 0, f_30);
+                    }
+                    else if(rProp.Name == getNamePropertyProjection_31())
+                    {
+                        double f_31(0.0);
+                        rProp.Value >>= f_31;
+                        maProjection.set(3, 1, f_31);
+                    }
+                    else if(rProp.Name == getNamePropertyProjection_32())
+                    {
+                        double f_32(0.0);
+                        rProp.Value >>= f_32;
+                        maProjection.set(3, 2, f_32);
+                    }
+                    else if(rProp.Name == getNamePropertyProjection_33())
+                    {
+                        double f_33(1.0);
+                        rProp.Value >>= f_33;
+                        maProjection.set(3, 3, f_33);
+                    }
+                    else if(rProp.Name == getNamePropertyDeviceToView())
+                    {
+                        css::geometry::AffineMatrix3D aAffineMatrix3D;
+                        rProp.Value >>= aAffineMatrix3D;
+                        maDeviceToView = basegfx::unotools::homMatrixFromAffineMatrix3D(aAffineMatrix3D);
+                    }
+                    else if(rProp.Name == getNamePropertyTime())
+                    {
+                        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(
+                const basegfx::B3DHomMatrix& rObjectTransformation,
+                const basegfx::B3DHomMatrix& rOrientation,
+                const basegfx::B3DHomMatrix& rProjection,
+                const basegfx::B3DHomMatrix& rDeviceToView,
+                double fViewTime,
+                const uno::Sequence< beans::PropertyValue >& rExtendedParameters)
+            :   maObjectTransformation(rObjectTransformation),
+                maOrientation(rOrientation),
+                maProjection(rProjection),
+                maDeviceToView(rDeviceToView),
+                mfViewTime(fViewTime)
+            {
+                impInterpretPropertyValues(rExtendedParameters);
+            }
+
+            explicit ImpViewInformation3D(const 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 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 uno::Sequence< beans::PropertyValue >& rExtendedParameters)
+        :   mpViewInformation3D(ImpViewInformation3D(
+                rObjectObjectTransformation, rOrientation, rProjection,
+                rDeviceToView, fViewTime, rExtendedParameters))
+        {
+        }
+
+        ViewInformation3D::ViewInformation3D(const 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 uno::Sequence< beans::PropertyValue >& ViewInformation3D::getExtendedInformationSequence() const
+        {
+            return mpViewInformation3D->getExtendedInformationSequence();
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */