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 void E3dPolygonObj::CreateDefaultNormals()
  55 {
  56     basegfx::B3DPolyPolygon aPolyNormals;
  57
  58     // Create a complete tools::PolyPolygon with the plane normal
  59     for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
  60     {
  61         // Find source polygon
  62         const basegfx::B3DPolygon aPolygon(aPolyPoly3D.getB3DPolygon(a));
  63
  64         // Creating a new polygon for the normal
  65         basegfx::B3DPolygon aNormals;
  66
  67         // Get normal (and invert)
  68         basegfx::B3DVector aNormal(-aPolygon.getNormal());
  69
  70         // Fill new polygon
  71         for (sal_uInt32 b(0); b < aPolygon.count(); b++)
  72         {
  73             aNormals.append(aNormal);
  74         }
  75
  76         // Insert new polygon into the PolyPolygon
  77         aPolyNormals.append(aNormals);
  78     }
  79
  80     // Set default normal
  81     SetPolyNormals3D(aPolyNormals);
  82 }
  83
  84 void E3dPolygonObj::CreateDefaultTexture()
  85 {
  86     basegfx::B2DPolyPolygon aPolyTexture;
  87     // Create a complete tools::PolyPolygon with the texture coordinates
  88     // The texture coordinates extend over X,Y and Z
  89     // on the whole extreme values in the range 0.0 .. 1.0
  90     for (sal_uInt32 a(0); a < aPolyPoly3D.count(); a++)
  91     {
  92         // Find source polygon
  93         const basegfx::B3DPolygon& aPolygon(aPolyPoly3D.getB3DPolygon(a));
  94
  95         // Determine the total size of the object
  96         basegfx::B3DRange aVolume(basegfx::utils::getRange(aPolygon));
  97
  98         // Get normal
  99         basegfx::B3DVector aNormal(aPolygon.getNormal());
 100         aNormal.setX(fabs(aNormal.getX()));
 101         aNormal.setY(fabs(aNormal.getY()));
 102         aNormal.setZ(fabs(aNormal.getZ()));
 103
 104         // Decide which coordinates should be used as a source for the mapping
 105         sal_uInt16 nSourceMode = 0;
 106
 107         // Determine the greatest degree of freedom
 108         if (aNormal.getX() <= aNormal.getY() || aNormal.getX() <= aNormal.getZ())
 109         {
 110             if (aNormal.getY() > aNormal.getZ())
 111             {
 112                 // Y is the largest, use X,Z as mapping
 113                 nSourceMode = 1;
 114             }
 115             else
 116             {
 117                 // Z is the largest, use X,Y as mapping
 118                 nSourceMode = 2;
 119             }
 120         }
 121
 122         // Create new polygon for texture coordinates
 123         basegfx::B2DPolygon aTexture;
 124
 125         // Fill new polygon
 126         for (sal_uInt32 b(0); b < aPolygon.count(); b++)
 127         {
 128             basegfx::B2DPoint aTex;
 129             const basegfx::B3DPoint aCandidate(aPolygon.getB3DPoint(b));
 130
 131             switch (nSourceMode)
 132             {
 133                 case 0: //Source is Y,Z
 134                     if (aVolume.getHeight())
 135                         aTex.setX((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
 136                     if (aVolume.getDepth())
 137                         aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
 138                     break;
 139
 140                 case 1: // Source is X,Z
 141                     if (aVolume.getWidth())
 142                         aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
 143                     if (aVolume.getDepth())
 144                         aTex.setY((aCandidate.getZ() - aVolume.getMinZ()) / aVolume.getDepth());
 145                     break;
 146
 147                 case 2: // Source is X,Y
 148                     if (aVolume.getWidth())
 149                         aTex.setX((aCandidate.getX() - aVolume.getMinX()) / aVolume.getWidth());
 150                     if (aVolume.getHeight())
 151                         aTex.setY((aCandidate.getY() - aVolume.getMinY()) / aVolume.getHeight());
 152                     break;
 153             }
 154
 155             aTexture.append(aTex);
 156         }
 157
 158         // Insert new polygon into the PolyPolygon
 159         aPolyTexture.append(aTexture);
 160     }
 161
 162     // Set default Texture coordinates
 163     SetPolyTexture2D(aPolyTexture);
 164 }
 165
 166 E3dPolygonObj::~E3dPolygonObj() {}
 167
 168 SdrObjKind E3dPolygonObj::GetObjIdentifier() const { return E3D_POLYGONOBJ_ID; }
 169
 170 void E3dPolygonObj::SetPolyPolygon3D(const basegfx::B3DPolyPolygon& rNewPolyPoly3D)
 171 {
 172     if (aPolyPoly3D != rNewPolyPoly3D)
 173     {
 174         // New PolyPolygon; copying
 175         aPolyPoly3D = rNewPolyPoly3D;
 176
 177         // Create new geometry
 178         ActionChanged();
 179     }
 180 }
 181
 182 void E3dPolygonObj::SetPolyNormals3D(const basegfx::B3DPolyPolygon& rNewPolyNormals3D)
 183 {
 184     if (aPolyNormals3D != rNewPolyNormals3D)
 185     {
 186         // New PolyPolygon; copying
 187         aPolyNormals3D = rNewPolyNormals3D;
 188
 189         // Create new geometry
 190         ActionChanged();
 191     }
 192 }
 193
 194 void E3dPolygonObj::SetPolyTexture2D(const basegfx::B2DPolyPolygon& rNewPolyTexture2D)
 195 {
 196     if (aPolyTexture2D != rNewPolyTexture2D)
 197     {
 198         // New PolyPolygon; copying
 199         aPolyTexture2D = rNewPolyTexture2D;
 200
 201         // Create new geometry
 202         ActionChanged();
 203     }
 204 }
 205
 206 // Convert the object into a group object consisting of 6 polygons
 207
 208 SdrObjectUniquePtr E3dPolygonObj::DoConvertToPolyObj(bool /*bBezier*/, bool /*bAddText*/) const
 209 {
 210     return nullptr;
 211 }
 212
 213 E3dPolygonObj* E3dPolygonObj::CloneSdrObject(SdrModel& rTargetModel) const
 214 {
 215     return CloneHelper<E3dPolygonObj>(rTargetModel);
 216 }
 217
 218 E3dPolygonObj& E3dPolygonObj::operator=(const E3dPolygonObj& rObj)
 219 {
 220     if (this == &rObj)
 221         return *this;
 222     E3dCompoundObject::operator=(rObj);
 223
 224     aPolyPoly3D = rObj.aPolyPoly3D;
 225     aPolyNormals3D = rObj.aPolyNormals3D;
 226     aPolyTexture2D = rObj.aPolyTexture2D;
 227     bLineOnly = rObj.bLineOnly;
 228
 229     return *this;
 230 }
 231
 232 void E3dPolygonObj::SetLineOnly(bool bNew)
 233 {
 234     if (bNew != bLineOnly)
 235     {
 236         bLineOnly = bNew;
 237         ActionChanged();
 238     }
 239 }
 240
 241 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */