svx/source/sdr/contact/viewcontactofe3dsphere.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <sdr/contact/viewcontactofe3dsphere.hxx>
  22 #include <svx/sphere3d.hxx>
  23 #include <drawinglayer/primitive3d/sdrsphereprimitive3d.hxx>
  24 #include <sdr/primitive2d/sdrattributecreator.hxx>
  25 #include <sdr/primitive3d/sdrattributecreator3d.hxx>
  26
  27
  28 namespace sdr::contact
  29 {
  30         ViewContactOfE3dSphere::ViewContactOfE3dSphere(E3dSphereObj& rSphere)
  31         :   ViewContactOfE3d(rSphere)
  32         {
  33         }
  34
  35         ViewContactOfE3dSphere::~ViewContactOfE3dSphere()
  36         {
  37         }
  38
  39         drawinglayer::primitive3d::Primitive3DContainer ViewContactOfE3dSphere::createViewIndependentPrimitive3DContainer() const
  40         {
  41             drawinglayer::primitive3d::Primitive3DContainer xRetval;
  42             const SfxItemSet& rItemSet = GetE3dSphereObj().GetMergedItemSet();
  43             const drawinglayer::attribute::SdrLineFillShadowAttribute3D aAttribute(
  44                 drawinglayer::primitive2d::createNewSdrLineFillShadowAttribute(rItemSet, false));
  45
  46             // get sphere center and size for geometry
  47             const basegfx::B3DPoint aSpherePosition(GetE3dSphereObj().Center());
  48             const basegfx::B3DVector aSphereSize(GetE3dSphereObj().Size());
  49             basegfx::B3DHomMatrix aWorldTransform;
  50
  51             aWorldTransform.translate(-0.5, -0.5, -0.5);
  52             aWorldTransform.scale(aSphereSize.getX(), aSphereSize.getY(), aSphereSize.getZ());
  53             aWorldTransform.translate(aSpherePosition.getX(), aSpherePosition.getY(), aSpherePosition.getZ());
  54
  55             // get 3D Object Attributes
  56             drawinglayer::attribute::Sdr3DObjectAttribute aSdr3DObjectAttribute(drawinglayer::primitive2d::createNewSdr3DObjectAttribute(rItemSet));
  57
  58             // get segment count
  59             const sal_uInt32 nHorizontalSegments(GetE3dSphereObj().GetHorizontalSegments());
  60             const sal_uInt32 nVerticalSegments(GetE3dSphereObj().GetVerticalSegments());
  61
  62             // calculate texture size, use radii for (2 * PI * r) to get a perfect
  63             // mapping on the sphere
  64             const basegfx::B2DVector aTextureSize(
  65                 M_PI * ((aSphereSize.getX() + aSphereSize.getZ()) / 2.0), // PI * d
  66                 M_PI_2 * aSphereSize.getY()); // half outline, (PI * d)/2 -> PI/2 * d
  67
  68             // create primitive and add
  69             const drawinglayer::primitive3d::Primitive3DReference xReference(
  70                 new drawinglayer::primitive3d::SdrSpherePrimitive3D(
  71                     aWorldTransform, aTextureSize, aAttribute, aSdr3DObjectAttribute,
  72                     nHorizontalSegments, nVerticalSegments));
  73             xRetval = { xReference };
  74
  75             return xRetval;
  76         }
  77
  78 } // end of namespace
  79
  80 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */