drawinglayer/source/processor2d/hittestprocessor2d.cxx

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  19
  20 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
  21 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  22 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  23 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  24 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  25 #include <basegfx/polygon/b2dpolygontools.hxx>
  26 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  27 #include <drawinglayer/primitive2d/transparenceprimitive2d.hxx>
  28 #include <drawinglayer/primitive2d/maskprimitive2d.hxx>
  29 #include <drawinglayer/primitive2d/sceneprimitive2d.hxx>
  30 #include <drawinglayer/primitive2d/pointarrayprimitive2d.hxx>
  31 #include <basegfx/matrix/b3dhommatrix.hxx>
  32 #include <drawinglayer/processor3d/cutfindprocessor3d.hxx>
  33 #include <drawinglayer/primitive2d/hiddengeometryprimitive2d.hxx>
  34 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
  35
  36 //////////////////////////////////////////////////////////////////////////////
  37
  38 namespace drawinglayer
  39 {
  40     namespace processor2d
  41     {
  42         HitTestProcessor2D::HitTestProcessor2D(const geometry::ViewInformation2D& rViewInformation,
  43             const basegfx::B2DPoint& rLogicHitPosition,
  44             double fLogicHitTolerance,
  45             bool bHitTextOnly)
  46         :   BaseProcessor2D(rViewInformation),
  47             maDiscreteHitPosition(),
  48             mfDiscreteHitTolerance(0.0),
  49             mbHit(false),
  50             mbHitToleranceUsed(false),
  51             mbUseInvisiblePrimitiveContent(true),
  52             mbHitTextOnly(bHitTextOnly)
  53         {
  54             // init hit tolerance
  55             mfDiscreteHitTolerance = fLogicHitTolerance;
  56
  57             if(basegfx::fTools::less(mfDiscreteHitTolerance, 0.0))
  58             {
  59                 // ensure input parameter for hit tolerance is >= 0.0
  60                 mfDiscreteHitTolerance = 0.0;
  61             }
  62             else if(basegfx::fTools::more(mfDiscreteHitTolerance, 0.0))
  63             {
  64                 // generate discrete hit tolerance
  65                 mfDiscreteHitTolerance = (getViewInformation2D().getObjectToViewTransformation()
  66                     * basegfx::B2DVector(mfDiscreteHitTolerance, 0.0)).getLength();
  67             }
  68
  69             // gererate discrete hit position
  70             maDiscreteHitPosition = getViewInformation2D().getObjectToViewTransformation() * rLogicHitPosition;
  71
  72             // check if HitTolerance is used
  73             mbHitToleranceUsed = basegfx::fTools::more(getDiscreteHitTolerance(), 0.0);
  74         }
  75
  76         HitTestProcessor2D::~HitTestProcessor2D()
  77         {
  78         }
  79
  80         bool HitTestProcessor2D::checkHairlineHitWithTolerance(
  81             const basegfx::B2DPolygon& rPolygon,
  82             double fDiscreteHitTolerance)
  83         {
  84             basegfx::B2DPolygon aLocalPolygon(rPolygon);
  85             aLocalPolygon.transform(getViewInformation2D().getObjectToViewTransformation());
  86
  87             // get discrete range
  88             basegfx::B2DRange aPolygonRange(aLocalPolygon.getB2DRange());
  89
  90             if(basegfx::fTools::more(fDiscreteHitTolerance, 0.0))
  91             {
  92                 aPolygonRange.grow(fDiscreteHitTolerance);
  93             }
  94
  95             // do rough range test first
  96             if(aPolygonRange.isInside(getDiscreteHitPosition()))
  97             {
  98                 // check if a polygon edge is hit
  99                 return basegfx::tools::isInEpsilonRange(
 100                     aLocalPolygon,
 101                     getDiscreteHitPosition(),
 102                     fDiscreteHitTolerance);
 103             }
 104
 105             return false;
 106         }
 107
 108         bool HitTestProcessor2D::checkFillHitWithTolerance(
 109             const basegfx::B2DPolyPolygon& rPolyPolygon,
 110             double fDiscreteHitTolerance)
 111         {
 112             bool bRetval(false);
 113             basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolyPolygon);
 114             aLocalPolyPolygon.transform(getViewInformation2D().getObjectToViewTransformation());
 115
 116             // get discrete range
 117             basegfx::B2DRange aPolygonRange(aLocalPolyPolygon.getB2DRange());
 118             const bool bDiscreteHitToleranceUsed(basegfx::fTools::more(fDiscreteHitTolerance, 0.0));
 119
 120             if(bDiscreteHitToleranceUsed)
 121             {
 122                 aPolygonRange.grow(fDiscreteHitTolerance);
 123             }
 124
 125             // do rough range test first
 126             if(aPolygonRange.isInside(getDiscreteHitPosition()))
 127             {
 128                 // if a HitTolerance is given, check for polygon edge hit in epsilon first
 129                 if(bDiscreteHitToleranceUsed &&
 130                     basegfx::tools::isInEpsilonRange(
 131                         aLocalPolyPolygon,
 132                         getDiscreteHitPosition(),
 133                         fDiscreteHitTolerance))
 134                 {
 135                     bRetval = true;
 136                 }
 137
 138                 // check for hit in filled polyPolygon
 139                 if(!bRetval && basegfx::tools::isInside(
 140                     aLocalPolyPolygon,
 141                     getDiscreteHitPosition(),
 142                     true))
 143                 {
 144                     bRetval = true;
 145                 }
 146             }
 147
 148             return bRetval;
 149         }
 150
 151         void HitTestProcessor2D::check3DHit(const primitive2d::ScenePrimitive2D& rCandidate)
 152         {
 153             // calculate relative point in unified 2D scene
 154             const basegfx::B2DPoint aLogicHitPosition(getViewInformation2D().getInverseObjectToViewTransformation() * getDiscreteHitPosition());
 155
 156             // use bitmap check in ScenePrimitive2D
 157             bool bTryFastResult(false);
 158
 159             if(rCandidate.tryToCheckLastVisualisationDirectHit(aLogicHitPosition, bTryFastResult))
 160             {
 161                 mbHit = bTryFastResult;
 162             }
 163             else
 164             {
 165                 basegfx::B2DHomMatrix aInverseSceneTransform(rCandidate.getObjectTransformation());
 166                 aInverseSceneTransform.invert();
 167                 const basegfx::B2DPoint aRelativePoint(aInverseSceneTransform * aLogicHitPosition);
 168
 169                 // check if test point is inside scene's unified area at all
 170                 if(aRelativePoint.getX() >= 0.0 && aRelativePoint.getX() <= 1.0
 171                     && aRelativePoint.getY() >= 0.0 && aRelativePoint.getY() <= 1.0)
 172                 {
 173                     // get 3D view information
 174                     const geometry::ViewInformation3D& rObjectViewInformation3D = rCandidate.getViewInformation3D();
 175
 176                     // create HitPoint Front and Back, transform to object coordinates
 177                     basegfx::B3DHomMatrix aViewToObject(rObjectViewInformation3D.getObjectToView());
 178                     aViewToObject.invert();
 179                     const basegfx::B3DPoint aFront(aViewToObject * basegfx::B3DPoint(aRelativePoint.getX(), aRelativePoint.getY(), 0.0));
 180                     const basegfx::B3DPoint aBack(aViewToObject * basegfx::B3DPoint(aRelativePoint.getX(), aRelativePoint.getY(), 1.0));
 181
 182                     if(!aFront.equal(aBack))
 183                     {
 184                         const primitive3d::Primitive3DSequence& rPrimitives = rCandidate.getChildren3D();
 185
 186                         if(rPrimitives.hasElements())
 187                         {
 188                             // make BoundVolume empty and overlapping test for speedup
 189                             const basegfx::B3DRange aObjectRange(
 190                                 drawinglayer::primitive3d::getB3DRangeFromPrimitive3DSequence(
 191                                     rPrimitives, rObjectViewInformation3D));
 192
 193                             if(!aObjectRange.isEmpty())
 194                             {
 195                                 const basegfx::B3DRange aFrontBackRange(aFront, aBack);
 196
 197                                 if(aObjectRange.overlaps(aFrontBackRange))
 198                                 {
 199                                     // bound volumes hit, geometric cut tests needed
 200                                     drawinglayer::processor3d::CutFindProcessor aCutFindProcessor(
 201                                         rObjectViewInformation3D,
 202                                         aFront,
 203                                         aBack,
 204                                         true);
 205                                     aCutFindProcessor.process(rPrimitives);
 206
 207                                     mbHit = (0 != aCutFindProcessor.getCutPoints().size());
 208                                 }
 209                             }
 210                         }
 211                     }
 212                 }
 213
 214                 // This is needed to check hit with 3D shadows, too. HitTest is without shadow
 215                 // to keep compatible with previous versions. Keeping here as reference
 216                 //
 217                 // if(!getHit())
 218                 // {
 219                 //     // if scene has shadow, check hit with shadow, too
 220                 //     const primitive2d::Primitive2DSequence xExtracted2DSceneShadow(rCandidate.getShadow2D(getViewInformation2D()));
 221                 //
 222                 //     if(xExtracted2DSceneShadow.hasElements())
 223                 //     {
 224                 //         // proccess extracted 2D content
 225                 //         process(xExtracted2DSceneShadow);
 226                 //     }
 227                 // }
 228
 229                 if(!getHit())
 230                 {
 231                     // empty 3D scene; Check for border hit
 232                     basegfx::B2DPolygon aOutline(basegfx::tools::createUnitPolygon());
 233                     aOutline.transform(rCandidate.getObjectTransformation());
 234
 235                     mbHit = checkHairlineHitWithTolerance(aOutline, getDiscreteHitTolerance());
 236                 }
 237
 238                 // This is what the previous version did. Keeping it here for reference
 239                 //
 240                 // // 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
 241                 // // This may be refined later to an own 3D HitTest renderer which processes the 3D
 242                 // // geometry directly
 243                 // const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 244                 // const primitive2d::Primitive2DSequence xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
 245                 // const primitive2d::Primitive2DSequence xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D(getViewInformation2D()));
 246                 //
 247                 // if(xExtracted2DSceneGeometry.hasElements() || xExtracted2DSceneShadow.hasElements())
 248                 // {
 249                 //     // proccess extracted 2D content
 250                 //     process(xExtracted2DSceneGeometry);
 251                 //     process(xExtracted2DSceneShadow);
 252                 // }
 253                 // else
 254                 // {
 255                 //     // empty 3D scene; Check for border hit
 256                 //     const basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 257                 //     if(!aRange.isEmpty())
 258                 //     {
 259                 //          const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(aRange));
 260                 //          mbHit = checkHairlineHitWithTolerance(aOutline, getDiscreteHitTolerance());
 261                 //     }
 262                 // }
 263             }
 264         }
 265
 266         void HitTestProcessor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
 267         {
 268             if(getHit())
 269             {
 270                 // stop processing as soon as a hit was recognized
 271                 return;
 272             }
 273
 274             switch(rCandidate.getPrimitive2DID())
 275             {
 276                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 277                 {
 278                     // remember current ViewInformation2D
 279                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 280                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 281
 282                     // create new local ViewInformation2D containing transformation
 283                     const geometry::ViewInformation2D aViewInformation2D(
 284                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
 285                         getViewInformation2D().getViewTransformation(),
 286                         getViewInformation2D().getViewport(),
 287                         getViewInformation2D().getVisualizedPage(),
 288                         getViewInformation2D().getViewTime(),
 289                         getViewInformation2D().getExtendedInformationSequence());
 290                     updateViewInformation(aViewInformation2D);
 291
 292                     // proccess child content recursively
 293                     process(rTransformCandidate.getChildren());
 294
 295                     // restore transformations
 296                     updateViewInformation(aLastViewInformation2D);
 297
 298                     break;
 299                 }
 300                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
 301                 {
 302                     if(!getHitTextOnly())
 303                     {
 304                         // create hairline in discrete coordinates
 305                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
 306
 307                         // use hairline test
 308                         mbHit = checkHairlineHitWithTolerance(rPolygonCandidate.getB2DPolygon(), getDiscreteHitTolerance());
 309                     }
 310
 311                     break;
 312                 }
 313                 case PRIMITIVE2D_ID_POLYGONMARKERPRIMITIVE2D :
 314                 {
 315                     if(!getHitTextOnly())
 316                     {
 317                         // handle marker like hairline; no need to decompose in dashes
 318                         const primitive2d::PolygonMarkerPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonMarkerPrimitive2D& >(rCandidate));
 319
 320                         // use hairline test
 321                         mbHit = checkHairlineHitWithTolerance(rPolygonCandidate.getB2DPolygon(), getDiscreteHitTolerance());
 322                     }
 323
 324                     break;
 325                 }
 326                 case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
 327                 {
 328                     if(!getHitTextOnly())
 329                     {
 330                         // handle stroke evtl. directly; no need to decompose to filled polygon outlines
 331                         const primitive2d::PolygonStrokePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonStrokePrimitive2D& >(rCandidate));
 332                         const attribute::LineAttribute& rLineAttribute = rPolygonCandidate.getLineAttribute();
 333
 334                         if(basegfx::fTools::more(rLineAttribute.getWidth(), 0.0))
 335                         {
 336                             if(basegfx::B2DLINEJOIN_MITER == rLineAttribute.getLineJoin())
 337                             {
 338                                 // if line is mitered, use decomposition since mitered line
 339                                 // geometry may use more space than the geometry grown by half line width
 340                                 process(rCandidate.get2DDecomposition(getViewInformation2D()));
 341                             }
 342                             else
 343                             {
 344                                 // for all other B2DLINEJOIN_* do a hairline HitTest with expanded tolerance
 345                                 const basegfx::B2DVector aDiscreteHalfLineVector(getViewInformation2D().getObjectToViewTransformation()
 346                                     * basegfx::B2DVector(rLineAttribute.getWidth() * 0.5, 0.0));
 347                                 mbHit = checkHairlineHitWithTolerance(
 348                                     rPolygonCandidate.getB2DPolygon(),
 349                                     getDiscreteHitTolerance() + aDiscreteHalfLineVector.getLength());
 350                             }
 351                         }
 352                         else
 353                         {
 354                             // hairline; fallback to hairline test. Do not decompose
 355                             // since this may decompose the hairline to dashes
 356                             mbHit = checkHairlineHitWithTolerance(rPolygonCandidate.getB2DPolygon(), getDiscreteHitTolerance());
 357                         }
 358                     }
 359
 360                     break;
 361                 }
 362                 case PRIMITIVE2D_ID_POLYGONWAVEPRIMITIVE2D :
 363                 {
 364                     if(!getHitTextOnly())
 365                     {
 366                         // do not use decompose; just handle like a line with width
 367                         const primitive2d::PolygonWavePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonWavePrimitive2D& >(rCandidate));
 368                         double fLogicHitTolerance(0.0);
 369
 370                         // if WaveHeight, grow by it
 371                         if(basegfx::fTools::more(rPolygonCandidate.getWaveHeight(), 0.0))
 372                         {
 373                             fLogicHitTolerance += rPolygonCandidate.getWaveHeight();
 374                         }
 375
 376                         // if line width, grow by it
 377                         if(basegfx::fTools::more(rPolygonCandidate.getLineAttribute().getWidth(), 0.0))
 378                         {
 379                             fLogicHitTolerance += rPolygonCandidate.getLineAttribute().getWidth() * 0.5;
 380                         }
 381
 382                         const basegfx::B2DVector aDiscreteHalfLineVector(getViewInformation2D().getObjectToViewTransformation()
 383                             * basegfx::B2DVector(fLogicHitTolerance, 0.0));
 384
 385                         mbHit = checkHairlineHitWithTolerance(
 386                             rPolygonCandidate.getB2DPolygon(),
 387                             getDiscreteHitTolerance() + aDiscreteHalfLineVector.getLength());
 388                     }
 389
 390                     break;
 391                 }
 392                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
 393                 {
 394                     if(!getHitTextOnly())
 395                     {
 396                         // create filled polyPolygon in discrete coordinates
 397                         const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
 398
 399                         // use fill hit test
 400                         mbHit = checkFillHitWithTolerance(rPolygonCandidate.getB2DPolyPolygon(), getDiscreteHitTolerance());
 401                     }
 402
 403                     break;
 404                 }
 405                 case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
 406                 {
 407                     // sub-transparence group
 408                     const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
 409
 410                     // Currently the transparence content is not taken into account; only
 411                     // the children are recursively checked for hit. This may be refined for
 412                     // parts where the content is completely transparent if needed.
 413                     process(rTransCandidate.getChildren());
 414
 415                     break;
 416                 }
 417                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 418                 {
 419                     // create mask in discrete coordinates; only recursively continue
 420                     // with content when HitTest position is inside the mask
 421                     const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
 422
 423                     // use fill hit test
 424                     if(checkFillHitWithTolerance(rMaskCandidate.getMask(), getDiscreteHitTolerance()))
 425                     {
 426                         // recursively HitTest children
 427                         process(rMaskCandidate.getChildren());
 428                     }
 429
 430                     break;
 431                 }
 432                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 433                 {
 434                     if(!getHitTextOnly())
 435                     {
 436                         const primitive2d::ScenePrimitive2D& rScenePrimitive2D(
 437                             static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 438                         check3DHit(rScenePrimitive2D);
 439                     }
 440
 441                     break;
 442                 }
 443                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 444                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 445                 case PRIMITIVE2D_ID_GRIDPRIMITIVE2D :
 446                 case PRIMITIVE2D_ID_HELPLINEPRIMITIVE2D :
 447                 {
 448                     // ignorable primitives
 449                     break;
 450                 }
 451                 case PRIMITIVE2D_ID_SHADOWPRIMITIVE2D :
 452                 {
 453                     // Ignore shadows; we do not want to have shadows hittable.
 454                     // Remove this one to make shadows hittable on demand.
 455                     break;
 456                 }
 457                 case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
 458                 case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
 459                 {
 460                     // for text use the BoundRect of the primitive itself
 461                     const basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 462
 463                     if(!aRange.isEmpty())
 464                     {
 465                         const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(aRange));
 466                         mbHit = checkFillHitWithTolerance(basegfx::B2DPolyPolygon(aOutline), getDiscreteHitTolerance());
 467                     }
 468
 469                     break;
 470                 }
 471                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
 472                 {
 473                     if(!getHitTextOnly())
 474                     {
 475                         // The recently added BitmapEx::GetTransparency() makes it easy to extend
 476                         // the BitmapPrimitive2D HitTest to take the contained BotmapEx and it's
 477                         // transparency into account
 478                         const basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 479
 480                         if(!aRange.isEmpty())
 481                         {
 482                             const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
 483                             const BitmapEx& rBitmapEx = rBitmapCandidate.getBitmapEx();
 484                             const Size& rSizePixel(rBitmapEx.GetSizePixel());
 485
 486                             if(rSizePixel.Width() && rSizePixel.Height())
 487                             {
 488                                 basegfx::B2DHomMatrix aBackTransform(
 489                                     getViewInformation2D().getObjectToViewTransformation() *
 490                                     rBitmapCandidate.getTransform());
 491                                 aBackTransform.invert();
 492
 493                                 const basegfx::B2DPoint aRelativePoint(aBackTransform * getDiscreteHitPosition());
 494                                 const basegfx::B2DRange aUnitRange(0.0, 0.0, 1.0, 1.0);
 495
 496                                 if(aUnitRange.isInside(aRelativePoint))
 497                                 {
 498                                     const sal_Int32 nX(basegfx::fround(aRelativePoint.getX() * rSizePixel.Width()));
 499                                     const sal_Int32 nY(basegfx::fround(aRelativePoint.getY() * rSizePixel.Height()));
 500
 501                                     mbHit = (0xff != rBitmapEx.GetTransparency(nX, nY));
 502                                 }
 503                             }
 504                             else
 505                             {
 506                                 // fallback to standard HitTest
 507                                 const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(aRange));
 508                                 mbHit = checkFillHitWithTolerance(basegfx::B2DPolyPolygon(aOutline), getDiscreteHitTolerance());
 509                             }
 510                         }
 511                     }
 512
 513                     break;
 514                 }
 515                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
 516                 case PRIMITIVE2D_ID_CONTROLPRIMITIVE2D :
 517                 case PRIMITIVE2D_ID_FILLGRADIENTPRIMITIVE2D :
 518                 case PRIMITIVE2D_ID_FILLHATCHPRIMITIVE2D :
 519                 case PRIMITIVE2D_ID_PAGEPREVIEWPRIMITIVE2D :
 520                 case PRIMITIVE2D_ID_MEDIAPRIMITIVE2D:
 521                 {
 522                     if(!getHitTextOnly())
 523                     {
 524                         // Class of primitives for which just the BoundRect of the primitive itself
 525                         // will be used for HitTest currently.
 526                         //
 527                         // This may be refined in the future, e.g:
 528                         // - For Bitamps, the mask and/or transparence information may be used
 529                         // - For MetaFiles, the MetaFile content may be used
 530                         const basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 531
 532                         if(!aRange.isEmpty())
 533                         {
 534                             const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(aRange));
 535                             mbHit = checkFillHitWithTolerance(basegfx::B2DPolyPolygon(aOutline), getDiscreteHitTolerance());
 536                         }
 537                     }
 538
 539                     break;
 540                 }
 541                 case PRIMITIVE2D_ID_HIDDENGEOMETRYPRIMITIVE2D :
 542                 {
 543                     // HiddenGeometryPrimitive2D; the default decomposition would return an empty seqence,
 544                     // so force this primitive to process it's children directly if the switch is set
 545                     // (which is the default). Else, ignore invisible content
 546                     const primitive2d::HiddenGeometryPrimitive2D& rHiddenGeometry(static_cast< const primitive2d::HiddenGeometryPrimitive2D& >(rCandidate));
 547                        const primitive2d::Primitive2DSequence& rChildren = rHiddenGeometry.getChildren();
 548
 549                     if(rChildren.hasElements())
 550                     {
 551                         if(getUseInvisiblePrimitiveContent())
 552                         {
 553                             process(rChildren);
 554                         }
 555                     }
 556
 557                     break;
 558                 }
 559                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 560                 {
 561                     if(!getHitTextOnly())
 562                     {
 563                         const primitive2d::PointArrayPrimitive2D& rPointArrayCandidate(static_cast< const primitive2d::PointArrayPrimitive2D& >(rCandidate));
 564                         const std::vector< basegfx::B2DPoint >& rPositions = rPointArrayCandidate.getPositions();
 565                         const sal_uInt32 nCount(rPositions.size());
 566
 567                         for(sal_uInt32 a(0); !getHit() && a < nCount; a++)
 568                         {
 569                             const basegfx::B2DPoint aPosition(getViewInformation2D().getObjectToViewTransformation() * rPositions[a]);
 570                             const basegfx::B2DVector aDistance(aPosition - getDiscreteHitPosition());
 571
 572                             if(aDistance.getLength() <= getDiscreteHitTolerance())
 573                             {
 574                                 mbHit = true;
 575                             }
 576                         }
 577                     }
 578
 579                     break;
 580                 }
 581                 default :
 582                 {
 583                     // process recursively
 584                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
 585
 586                     break;
 587                 }
 588             }
 589         }
 590
 591     } // end of namespace processor2d
 592 } // end of namespace drawinglayer
 593
 594 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */