1 files changed, 239 insertions, 0 deletions
diff --git a/svx/source/engine3d/polygn3d.cxx b/svx/source/engine3d/polygn3d.cxx
new file mode 100644
index 000000000..e7a5623bf
--- /dev/null
+++ b/svx/source/engine3d/polygn3d.cxx
@@ -0,0 +1,239 @@
+/* -*- 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 <polygn3d.hxx>
+#include <svx/svdobjkind.hxx>
+#include <basegfx/point/b3dpoint.hxx>
+#include <sdr/contact/viewcontactofe3dpolygon.hxx>
+#include <basegfx/polygon/b3dpolygon.hxx>
+#include <basegfx/polygon/b3dpolygontools.hxx>
+
+// DrawContact section
+std::unique_ptr<sdr::contact::ViewContact> E3dPolygonObj::CreateObjectSpecificViewContact()
+{
+    return std::make_unique<sdr::contact::ViewContactOfE3dPolygon>(*this);
+}
+
+E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel, const basegfx::B3DPolyPolygon& rPolyPoly3D)
+    : E3dCompoundObject(rSdrModel)
+    , bLineOnly(true)
+{
+    // Set geometry
+    SetPolyPolygon3D(rPolyPoly3D);
+
+    // Create default normals
+    CreateDefaultNormals();
+
+    // Create default texture coordinates
+    CreateDefaultTexture();
+}
+
+E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel)
+    : E3dCompoundObject(rSdrModel)
+    , bLineOnly(false)
+{
+    // Create no geometry
+}
+
+E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel, E3dPolygonObj const& rSource)
+    : E3dCompoundObject(rSdrModel, rSource)
+    , bLineOnly(false)
+{
+    // Create no geometry
+
+    aPolyPoly3D = rSource.aPolyPoly3D;
+    aPolyNormals3D = rSource.aPolyNormals3D;
+    aPolyTexture2D = rSource.aPolyTexture2D;
+    bLineOnly = rSource.bLineOnly;
+}
+
+void E3dPolygonObj::CreateDefaultNormals()
+{
+    basegfx::B3DPolyPolygon aPolyNormals;
+
+    // Create a complete tools::PolyPolygon with the plane normal
+    for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
+    {
+        // Find source polygon
+        const basegfx::B3DPolygon aPolygon(aPolyPoly3D.getB3DPolygon(a));
+
+        // Creating a new polygon for the normal
+        basegfx::B3DPolygon aNormals;
+
+        // Get normal (and invert)
+        basegfx::B3DVector aNormal(-aPolygon.getNormal());
+
+        // Fill new polygon
+        for (sal_uInt32 b(0); b < aPolygon.count(); b++)
+        {
+            aNormals.append(aNormal);
+        }
+
+        // Insert new polygon into the PolyPolygon
+        aPolyNormals.append(aNormals);
+    }
+
+    // Set default normal
+    SetPolyNormals3D(aPolyNormals);
+}
+
+void E3dPolygonObj::CreateDefaultTexture()
+{
+    basegfx::B2DPolyPolygon aPolyTexture;
+    // Create a complete tools::PolyPolygon with the texture coordinates
+    // The texture coordinates extend over X,Y and Z
+    // on the whole extreme values in the range 0.0 .. 1.0
+    for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
+    {
+        // Find source polygon
+        const basegfx::B3DPolygon& aPolygon(aPolyPoly3D.getB3DPolygon(a));
+
+        // Determine the total size of the object
+        basegfx::B3DRange aVolume(basegfx::utils::getRange(aPolygon));
+
+        // Get normal
+        basegfx::B3DVector aNormal(aPolygon.getNormal());
+        aNormal.setX(fabs(aNormal.getX()));
+        aNormal.setY(fabs(aNormal.getY()));
+        aNormal.setZ(fabs(aNormal.getZ()));
+
+        // Decide which coordinates should be used as a source for the mapping
+        sal_uInt16 nSourceMode = 0;
+
+        // Determine the greatest degree of freedom
+        if (aNormal.getX() <= aNormal.getY() || aNormal.getX() <= aNormal.getZ())
+        {
+            if (aNormal.getY() > aNormal.getZ())
+            {
+                // Y is the largest, use X,Z as mapping
+                nSourceMode = 1;
+            }
+            else
+            {
+                // Z is the largest, use X,Y as mapping
+                nSourceMode = 2;
+            }
+        }
+
+        // Create new polygon for texture coordinates
+        basegfx::B2DPolygon aTexture;
+
+        // Fill new polygon
+        for (sal_uInt32 b(0); b < aPolygon.count(); b++)
+        {
+            basegfx::B2DPoint aTex;
+            const basegfx::B3DPoint aCandidate(aPolygon.getB3DPoint(b));
+
+            switch (nSourceMode)
+            {
+                case 0: //Source is Y,Z
+                    if (aVolume.getHeight())
+                        aTex.setX((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
+                    if (aVolume.getDepth())
+                        aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
+                    break;
+
+                case 1: // Source is X,Z
+                    if (aVolume.getWidth())
+                        aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
+                    if (aVolume.getDepth())
+                        aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
+                    break;
+
+                case 2: // Source is X,Y
+                    if (aVolume.getWidth())
+                        aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
+                    if (aVolume.getHeight())
+                        aTex.setY((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
+                    break;
+            }
+
+            aTexture.append(aTex);
+        }
+
+        // Insert new polygon into the PolyPolygon
+        aPolyTexture.append(aTexture);
+    }
+
+    // Set default Texture coordinates
+    SetPolyTexture2D(aPolyTexture);
+}
+
+E3dPolygonObj::~E3dPolygonObj() {}
+
+SdrObjKind E3dPolygonObj::GetObjIdentifier() const { return SdrObjKind::E3D_Polygon; }
+
+void E3dPolygonObj::SetPolyPolygon3D(const basegfx::B3DPolyPolygon& rNewPolyPoly3D)
+{
+    if (aPolyPoly3D != rNewPolyPoly3D)
+    {
+        // New PolyPolygon; copying
+        aPolyPoly3D = rNewPolyPoly3D;
+
+        // Create new geometry
+        ActionChanged();
+    }
+}
+
+void E3dPolygonObj::SetPolyNormals3D(const basegfx::B3DPolyPolygon& rNewPolyNormals3D)
+{
+    if (aPolyNormals3D != rNewPolyNormals3D)
+    {
+        // New PolyPolygon; copying
+        aPolyNormals3D = rNewPolyNormals3D;
+
+        // Create new geometry
+        ActionChanged();
+    }
+}
+
+void E3dPolygonObj::SetPolyTexture2D(const basegfx::B2DPolyPolygon& rNewPolyTexture2D)
+{
+    if (aPolyTexture2D != rNewPolyTexture2D)
+    {
+        // New PolyPolygon; copying
+        aPolyTexture2D = rNewPolyTexture2D;
+
+        // Create new geometry
+        ActionChanged();
+    }
+}
+
+// Convert the object into a group object consisting of 6 polygons
+
+SdrObjectUniquePtr E3dPolygonObj::DoConvertToPolyObj(bool /*bBezier*/, bool /*bAddText*/) const
+{
+    return nullptr;
+}
+
+E3dPolygonObj* E3dPolygonObj::CloneSdrObject(SdrModel& rTargetModel) const
+{
+    return new E3dPolygonObj(rTargetModel, *this);
+}
+
+void E3dPolygonObj::SetLineOnly(bool bNew)
+{
+    if (bNew != bLineOnly)
+    {
+        bLineOnly = bNew;
+        ActionChanged();
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */