1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_drawinglayer.hxx" 26 27 #include <drawinglayer/primitive3d/hatchtextureprimitive3d.hxx> 28 #include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx> 29 #include <basegfx/polygon/b2dpolypolygon.hxx> 30 #include <basegfx/polygon/b3dpolygon.hxx> 31 #include <basegfx/polygon/b2dpolygon.hxx> 32 #include <basegfx/polygon/b2dpolypolygontools.hxx> 33 #include <basegfx/range/b2drange.hxx> 34 #include <drawinglayer/texture/texture.hxx> 35 #include <basegfx/polygon/b2dpolygonclipper.hxx> 36 #include <basegfx/matrix/b3dhommatrix.hxx> 37 #include <drawinglayer/primitive3d/polygonprimitive3d.hxx> 38 #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx> 39 40 ////////////////////////////////////////////////////////////////////////////// 41 42 using namespace com::sun::star; 43 44 ////////////////////////////////////////////////////////////////////////////// 45 46 namespace drawinglayer 47 { 48 namespace primitive3d 49 { impCreate3DDecomposition() const50 Primitive3DSequence HatchTexturePrimitive3D::impCreate3DDecomposition() const 51 { 52 Primitive3DSequence aRetval; 53 54 if(getChildren().hasElements()) 55 { 56 const Primitive3DSequence aSource(getChildren()); 57 const sal_uInt32 nSourceCount(aSource.getLength()); 58 std::vector< Primitive3DReference > aDestination; 59 60 for(sal_uInt32 a(0); a < nSourceCount; a++) 61 { 62 // get reference 63 const Primitive3DReference xReference(aSource[a]); 64 65 if(xReference.is()) 66 { 67 // try to cast to BasePrimitive2D implementation 68 const BasePrimitive3D* pBasePrimitive = dynamic_cast< const BasePrimitive3D* >(xReference.get()); 69 70 if(pBasePrimitive) 71 { 72 // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch 73 // not all content is needed, remove transparencies and ModifiedColorPrimitives 74 switch(pBasePrimitive->getPrimitive3DID()) 75 { 76 case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D : 77 { 78 // polyPolygonMaterialPrimitive3D, check texturing and hatching 79 const PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const PolyPolygonMaterialPrimitive3D& >(*pBasePrimitive); 80 const basegfx::B3DPolyPolygon aFillPolyPolygon(rPrimitive.getB3DPolyPolygon()); 81 82 if(maHatch.isFillBackground()) 83 { 84 // add original primitive for background 85 aDestination.push_back(xReference); 86 } 87 88 if(aFillPolyPolygon.areTextureCoordinatesUsed()) 89 { 90 const sal_uInt32 nPolyCount(aFillPolyPolygon.count()); 91 basegfx::B2DPolyPolygon aTexPolyPolygon; 92 basegfx::B2DPoint a2N; 93 basegfx::B2DVector a2X, a2Y; 94 basegfx::B3DPoint a3N; 95 basegfx::B3DVector a3X, a3Y; 96 bool b2N(false), b2X(false), b2Y(false); 97 98 for(sal_uInt32 b(0); b < nPolyCount; b++) 99 { 100 const basegfx::B3DPolygon aPartPoly(aFillPolyPolygon.getB3DPolygon(b)); 101 const sal_uInt32 nPointCount(aPartPoly.count()); 102 basegfx::B2DPolygon aTexPolygon; 103 104 for(sal_uInt32 c(0); c < nPointCount; c++) 105 { 106 const basegfx::B2DPoint a2Candidate(aPartPoly.getTextureCoordinate(c)); 107 108 if(!b2N) 109 { 110 a2N = a2Candidate; 111 a3N = aPartPoly.getB3DPoint(c); 112 b2N = true; 113 } 114 else if(!b2X && !a2N.equal(a2Candidate)) 115 { 116 a2X = a2Candidate - a2N; 117 a3X = aPartPoly.getB3DPoint(c) - a3N; 118 b2X = true; 119 } 120 else if(!b2Y && !a2N.equal(a2Candidate) && !a2X.equal(a2Candidate)) 121 { 122 a2Y = a2Candidate - a2N; 123 124 const double fCross(a2X.cross(a2Y)); 125 126 if(!basegfx::fTools::equalZero(fCross)) 127 { 128 a3Y = aPartPoly.getB3DPoint(c) - a3N; 129 b2Y = true; 130 } 131 } 132 133 aTexPolygon.append(a2Candidate); 134 } 135 136 aTexPolygon.setClosed(true); 137 aTexPolyPolygon.append(aTexPolygon); 138 } 139 140 if(b2N && b2X && b2Y) 141 { 142 // found two linearly independent 2D vectors 143 // get 2d range of texture coordinates 144 const basegfx::B2DRange aOutlineRange(basegfx::tools::getRange(aTexPolyPolygon)); 145 const basegfx::BColor aHatchColor(getHatch().getColor()); 146 const double fAngle(getHatch().getAngle()); 147 ::std::vector< basegfx::B2DHomMatrix > aMatrices; 148 149 // get hatch transformations 150 switch(getHatch().getStyle()) 151 { 152 case attribute::HATCHSTYLE_TRIPLE: 153 { 154 // rotated 45 degrees 155 texture::GeoTexSvxHatch aHatch( 156 aOutlineRange, 157 aOutlineRange, 158 getHatch().getDistance(), 159 fAngle - F_PI4); 160 161 aHatch.appendTransformations(aMatrices); 162 } 163 case attribute::HATCHSTYLE_DOUBLE: 164 { 165 // rotated 90 degrees 166 texture::GeoTexSvxHatch aHatch( 167 aOutlineRange, 168 aOutlineRange, 169 getHatch().getDistance(), 170 fAngle - F_PI2); 171 172 aHatch.appendTransformations(aMatrices); 173 } 174 case attribute::HATCHSTYLE_SINGLE: 175 { 176 // angle as given 177 texture::GeoTexSvxHatch aHatch( 178 aOutlineRange, 179 aOutlineRange, 180 getHatch().getDistance(), 181 fAngle); 182 183 aHatch.appendTransformations(aMatrices); 184 } 185 } 186 187 // create geometry from unit line 188 basegfx::B2DPolyPolygon a2DHatchLines; 189 basegfx::B2DPolygon a2DUnitLine; 190 a2DUnitLine.append(basegfx::B2DPoint(0.0, 0.0)); 191 a2DUnitLine.append(basegfx::B2DPoint(1.0, 0.0)); 192 193 for(sal_uInt32 c(0); c < aMatrices.size(); c++) 194 { 195 const basegfx::B2DHomMatrix& rMatrix = aMatrices[c]; 196 basegfx::B2DPolygon aNewLine(a2DUnitLine); 197 aNewLine.transform(rMatrix); 198 a2DHatchLines.append(aNewLine); 199 } 200 201 if(a2DHatchLines.count()) 202 { 203 // clip against texture polygon 204 a2DHatchLines = basegfx::tools::clipPolyPolygonOnPolyPolygon(a2DHatchLines, aTexPolyPolygon, true, true); 205 } 206 207 if(a2DHatchLines.count()) 208 { 209 // create 2d matrix with 2d vectors as column vectors and 2d point as offset, this represents 210 // a coordinate system transformation from unit coordinates to the new coordinate system 211 basegfx::B2DHomMatrix a2D; 212 a2D.set(0, 0, a2X.getX()); 213 a2D.set(1, 0, a2X.getY()); 214 a2D.set(0, 1, a2Y.getX()); 215 a2D.set(1, 1, a2Y.getY()); 216 a2D.set(0, 2, a2N.getX()); 217 a2D.set(1, 2, a2N.getY()); 218 219 // invert that transformation, so we have a back-transformation from texture coordinates 220 // to unit coordinates 221 a2D.invert(); 222 a2DHatchLines.transform(a2D); 223 224 // expand back-transformated geometry tpo 3D 225 basegfx::B3DPolyPolygon a3DHatchLines(basegfx::tools::createB3DPolyPolygonFromB2DPolyPolygon(a2DHatchLines, 0.0)); 226 227 // create 3d matrix with 3d vectors as column vectors (0,0,1 as Z) and 3d point as offset, this represents 228 // a coordinate system transformation from unit coordinates to the object's 3d coordinate system 229 basegfx::B3DHomMatrix a3D; 230 a3D.set(0, 0, a3X.getX()); 231 a3D.set(1, 0, a3X.getY()); 232 a3D.set(2, 0, a3X.getZ()); 233 a3D.set(0, 1, a3Y.getX()); 234 a3D.set(1, 1, a3Y.getY()); 235 a3D.set(2, 1, a3Y.getZ()); 236 a3D.set(0, 3, a3N.getX()); 237 a3D.set(1, 3, a3N.getY()); 238 a3D.set(2, 3, a3N.getZ()); 239 240 // transform hatch lines to 3D object coordinates 241 a3DHatchLines.transform(a3D); 242 243 // build primitives from this geometry 244 const sal_uInt32 nHatchLines(a3DHatchLines.count()); 245 246 for(sal_uInt32 d(0); d < nHatchLines; d++) 247 { 248 const Primitive3DReference xRef(new PolygonHairlinePrimitive3D(a3DHatchLines.getB3DPolygon(d), aHatchColor)); 249 aDestination.push_back(xRef); 250 } 251 } 252 } 253 } 254 255 break; 256 } 257 default : 258 { 259 // add reference to result 260 aDestination.push_back(xReference); 261 break; 262 } 263 } 264 } 265 else 266 { 267 // unknown implementation, add to result 268 aDestination.push_back(xReference); 269 } 270 } 271 } 272 273 // prepare return value 274 const sal_uInt32 nDestSize(aDestination.size()); 275 aRetval.realloc(nDestSize); 276 277 for(sal_uInt32 b(0); b < nDestSize; b++) 278 { 279 aRetval[b] = aDestination[b]; 280 } 281 } 282 283 return aRetval; 284 } 285 HatchTexturePrimitive3D(const attribute::FillHatchAttribute & rHatch,const Primitive3DSequence & rChildren,const basegfx::B2DVector & rTextureSize,bool bModulate,bool bFilter)286 HatchTexturePrimitive3D::HatchTexturePrimitive3D( 287 const attribute::FillHatchAttribute& rHatch, 288 const Primitive3DSequence& rChildren, 289 const basegfx::B2DVector& rTextureSize, 290 bool bModulate, 291 bool bFilter) 292 : TexturePrimitive3D(rChildren, rTextureSize, bModulate, bFilter), 293 maHatch(rHatch), 294 maBuffered3DDecomposition() 295 { 296 } 297 operator ==(const BasePrimitive3D & rPrimitive) const298 bool HatchTexturePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const 299 { 300 if(TexturePrimitive3D::operator==(rPrimitive)) 301 { 302 const HatchTexturePrimitive3D& rCompare = (HatchTexturePrimitive3D&)rPrimitive; 303 304 return (getHatch() == rCompare.getHatch()); 305 } 306 307 return false; 308 } 309 get3DDecomposition(const geometry::ViewInformation3D &) const310 Primitive3DSequence HatchTexturePrimitive3D::get3DDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const 311 { 312 ::osl::MutexGuard aGuard( m_aMutex ); 313 314 if(!getBuffered3DDecomposition().hasElements()) 315 { 316 const Primitive3DSequence aNewSequence(impCreate3DDecomposition()); 317 const_cast< HatchTexturePrimitive3D* >(this)->setBuffered3DDecomposition(aNewSequence); 318 } 319 320 return getBuffered3DDecomposition(); 321 } 322 323 // provide unique ID 324 ImplPrimitrive3DIDBlock(HatchTexturePrimitive3D, PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D) 325 326 } // end of namespace primitive3d 327 } // end of namespace drawinglayer 328 329 ////////////////////////////////////////////////////////////////////////////// 330 // eof 331