svx/source/engine3d/polygn3d.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.
   4  *
   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
  13  *   with this work for additional information regarding copyright
  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 #include <polygn3d.hxx>
  21 #include <svx/svdobjkind.hxx>
  22 #include <basegfx/point/b3dpoint.hxx>
  23 #include <sdr/contact/viewcontactofe3dpolygon.hxx>
  24 #include <basegfx/polygon/b3dpolygon.hxx>
  25 #include <basegfx/polygon/b3dpolygontools.hxx>
  26
  27 // DrawContact section
  28 std::unique_ptr<sdr::contact::ViewContact> E3dPolygonObj::CreateObjectSpecificViewContact()
  29 {
  30     return std::make_unique<sdr::contact::ViewContactOfE3dPolygon>(*this);
  31 }
  32
  33 E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel, const basegfx::B3DPolyPolygon& rPolyPoly3D)
  34     : E3dCompoundObject(rSdrModel)
  35     , bLineOnly(true)
  36 {
  37     // Set geometry
  38     SetPolyPolygon3D(rPolyPoly3D);
  39
  40     // Create default normals
  41     CreateDefaultNormals();
  42
  43     // Create default texture coordinates
  44     CreateDefaultTexture();
  45 }
  46
  47 E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel)
  48     : E3dCompoundObject(rSdrModel)
  49     , bLineOnly(false)
  50 {
  51     // Create no geometry
  52 }
  53
  54 E3dPolygonObj::E3dPolygonObj(SdrModel& rSdrModel, E3dPolygonObj const& rSource)
  55     : E3dCompoundObject(rSdrModel, rSource)
  56     , bLineOnly(false)
  57 {
  58     // Create no geometry
  59
  60     aPolyPoly3D = rSource.aPolyPoly3D;
  61     aPolyNormals3D = rSource.aPolyNormals3D;
  62     aPolyTexture2D = rSource.aPolyTexture2D;
  63     bLineOnly = rSource.bLineOnly;
  64 }
  65
  66 void E3dPolygonObj::CreateDefaultNormals()
  67 {
  68     basegfx::B3DPolyPolygon aPolyNormals;
  69
  70     // Create a complete tools::PolyPolygon with the plane normal
  71     for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
  72     {
  73         // Find source polygon
  74         const basegfx::B3DPolygon aPolygon(aPolyPoly3D.getB3DPolygon(a));
  75
  76         // Creating a new polygon for the normal
  77         basegfx::B3DPolygon aNormals;
  78
  79         // Get normal (and invert)
  80         basegfx::B3DVector aNormal(-aPolygon.getNormal());
  81
  82         // Fill new polygon
  83         for (sal_uInt32 b(0); b < aPolygon.count(); b++)
  84         {
  85             aNormals.append(aNormal);
  86         }
  87
  88         // Insert new polygon into the PolyPolygon
  89         aPolyNormals.append(aNormals);
  90     }
  91
  92     // Set default normal
  93     SetPolyNormals3D(aPolyNormals);
  94 }
  95
  96 void E3dPolygonObj::CreateDefaultTexture()
  97 {
  98     basegfx::B2DPolyPolygon aPolyTexture;
  99     // Create a complete tools::PolyPolygon with the texture coordinates
 100     // The texture coordinates extend over X,Y and Z
 101     // on the whole extreme values in the range 0.0 .. 1.0
 102     for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
 103     {
 104         // Find source polygon
 105         const basegfx::B3DPolygon& aPolygon(aPolyPoly3D.getB3DPolygon(a));
 106
 107         // Determine the total size of the object
 108         basegfx::B3DRange aVolume(basegfx::utils::getRange(aPolygon));
 109
 110         // Get normal
 111         basegfx::B3DVector aNormal(aPolygon.getNormal());
 112         aNormal.setX(fabs(aNormal.getX()));
 113         aNormal.setY(fabs(aNormal.getY()));
 114         aNormal.setZ(fabs(aNormal.getZ()));
 115
 116         // Decide which coordinates should be used as a source for the mapping
 117         sal_uInt16 nSourceMode = 0;
 118
 119         // Determine the greatest degree of freedom
 120         if (aNormal.getX() <= aNormal.getY() || aNormal.getX() <= aNormal.getZ())
 121         {
 122             if (aNormal.getY() > aNormal.getZ())
 123             {
 124                 // Y is the largest, use X,Z as mapping
 125                 nSourceMode = 1;
 126             }
 127             else
 128             {
 129                 // Z is the largest, use X,Y as mapping
 130                 nSourceMode = 2;
 131             }
 132         }
 133
 134         // Create new polygon for texture coordinates
 135         basegfx::B2DPolygon aTexture;
 136
 137         // Fill new polygon
 138         for (sal_uInt32 b(0); b < aPolygon.count(); b++)
 139         {
 140             basegfx::B2DPoint aTex;
 141             const basegfx::B3DPoint aCandidate(aPolygon.getB3DPoint(b));
 142
 143             switch (nSourceMode)
 144             {
 145                 case 0: //Source is Y,Z
 146                     if (aVolume.getHeight())
 147                         aTex.setX((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
 148                     if (aVolume.getDepth())
 149                         aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
 150                     break;
 151
 152                 case 1: // Source is X,Z
 153                     if (aVolume.getWidth())
 154                         aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
 155                     if (aVolume.getDepth())
 156                         aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
 157                     break;
 158
 159                 case 2: // Source is X,Y
 160                     if (aVolume.getWidth())
 161                         aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
 162                     if (aVolume.getHeight())
 163                         aTex.setY((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
 164                     break;
 165             }
 166
 167             aTexture.append(aTex);
 168         }
 169
 170         // Insert new polygon into the PolyPolygon
 171         aPolyTexture.append(aTexture);
 172     }
 173
 174     // Set default Texture coordinates
 175     SetPolyTexture2D(aPolyTexture);
 176 }
 177
 178 E3dPolygonObj::~E3dPolygonObj() {}
 179
 180 SdrObjKind E3dPolygonObj::GetObjIdentifier() const { return SdrObjKind::E3D_Polygon; }
 181
 182 void E3dPolygonObj::SetPolyPolygon3D(const basegfx::B3DPolyPolygon& rNewPolyPoly3D)
 183 {
 184     if (aPolyPoly3D != rNewPolyPoly3D)
 185     {
 186         // New PolyPolygon; copying
 187         aPolyPoly3D = rNewPolyPoly3D;
 188
 189         // Create new geometry
 190         ActionChanged();
 191     }
 192 }
 193
 194 void E3dPolygonObj::SetPolyNormals3D(const basegfx::B3DPolyPolygon& rNewPolyNormals3D)
 195 {
 196     if (aPolyNormals3D != rNewPolyNormals3D)
 197     {
 198         // New PolyPolygon; copying
 199         aPolyNormals3D = rNewPolyNormals3D;
 200
 201         // Create new geometry
 202         ActionChanged();
 203     }
 204 }
 205
 206 void E3dPolygonObj::SetPolyTexture2D(const basegfx::B2DPolyPolygon& rNewPolyTexture2D)
 207 {
 208     if (aPolyTexture2D != rNewPolyTexture2D)
 209     {
 210         // New PolyPolygon; copying
 211         aPolyTexture2D = rNewPolyTexture2D;
 212
 213         // Create new geometry
 214         ActionChanged();
 215     }
 216 }
 217
 218 // Convert the object into a group object consisting of 6 polygons
 219
 220 rtl::Reference<SdrObject> E3dPolygonObj::DoConvertToPolyObj(bool /*bBezier*/,
 221                                                             bool /*bAddText*/) const
 222 {
 223     return nullptr;
 224 }
 225
 226 rtl::Reference<SdrObject> E3dPolygonObj::CloneSdrObject(SdrModel& rTargetModel) const
 227 {
 228     return new E3dPolygonObj(rTargetModel, *this);
 229 }
 230
 231 void E3dPolygonObj::SetLineOnly(bool bNew)
 232 {
 233     if (bNew != bLineOnly)
 234     {
 235         bLineOnly = bNew;
 236         ActionChanged();
 237     }
 238 }
 239
 240 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */