basegfx/source/tools/canvastools.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 <com/sun/star/geometry/RealSize2D.hpp>
  21 #include <com/sun/star/geometry/RealPoint2D.hpp>
  22 #include <com/sun/star/geometry/RealRectangle2D.hpp>
  23 #include <com/sun/star/geometry/RealRectangle3D.hpp>
  24 #include <com/sun/star/geometry/RealBezierSegment2D.hpp>
  25 #include <com/sun/star/geometry/AffineMatrix2D.hpp>
  26 #include <com/sun/star/geometry/AffineMatrix3D.hpp>
  27 #include <com/sun/star/geometry/Matrix2D.hpp>
  28 #include <com/sun/star/geometry/IntegerSize2D.hpp>
  29 #include <com/sun/star/geometry/IntegerPoint2D.hpp>
  30 #include <com/sun/star/geometry/IntegerRectangle2D.hpp>
  31 #include <com/sun/star/rendering/XPolyPolygon2D.hpp>
  32 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  33 #include <com/sun/star/awt/Size.hpp>
  34 #include <com/sun/star/awt/Point.hpp>
  35 #include <com/sun/star/awt/Rectangle.hpp>
  36 #include <basegfx/tools/unopolypolygon.hxx>
  37 #include <basegfx/matrix/b2dhommatrix.hxx>
  38 #include <basegfx/matrix/b3dhommatrix.hxx>
  39 #include <basegfx/vector/b2dsize.hxx>
  40 #include <basegfx/point/b2dpoint.hxx>
  41 #include <basegfx/range/b2drectangle.hxx>
  42 #include <basegfx/range/b3drange.hxx>
  43 #include <basegfx/vector/b2isize.hxx>
  44 #include <basegfx/point/b2ipoint.hxx>
  45 #include <basegfx/range/b2irectangle.hxx>
  46 #include <basegfx/range/b2ibox.hxx>
  47 #include <basegfx/polygon/b2dpolygon.hxx>
  48 #include <basegfx/polygon/b2dpolypolygon.hxx>
  49 #include <basegfx/tools/canvastools.hxx>
  50 #include <limits>
  51
  52 using namespace ::com::sun::star;
  53
  54 namespace basegfx
  55 {
  56
  57     namespace unotools
  58     {
  59         namespace
  60         {
  61             uno::Sequence< geometry::RealBezierSegment2D > bezierSequenceFromB2DPolygon(const ::basegfx::B2DPolygon& rPoly)
  62             {
  63                 const sal_uInt32 nPointCount(rPoly.count());
  64                 uno::Sequence< geometry::RealBezierSegment2D > outputSequence(nPointCount);
  65                 geometry::RealBezierSegment2D* pOutput = outputSequence.getArray();
  66
  67                 // fill sequences and imply clodes polygon on this implementation layer
  68                 for(sal_uInt32 a(0); a < nPointCount; a++)
  69                 {
  70                     const basegfx::B2DPoint aStart(rPoly.getB2DPoint(a));
  71                     const basegfx::B2DPoint aControlA(rPoly.getNextControlPoint(a));
  72                     const basegfx::B2DPoint aControlB(rPoly.getPrevControlPoint((a + 1) % nPointCount));
  73
  74                     pOutput[a] = geometry::RealBezierSegment2D(
  75                         aStart.getX(), aStart.getY(),
  76                         aControlA.getX(), aControlA.getY(),
  77                         aControlB.getX(), aControlB.getY());
  78                 }
  79
  80                 return outputSequence;
  81             }
  82
  83             uno::Sequence< geometry::RealPoint2D > pointSequenceFromB2DPolygon( const ::basegfx::B2DPolygon& rPoly )
  84             {
  85                 const sal_uInt32 nNumPoints( rPoly.count() );
  86
  87                 uno::Sequence< geometry::RealPoint2D > outputSequence( nNumPoints );
  88                 geometry::RealPoint2D* pOutput = outputSequence.getArray();
  89
  90                 // fill sequence from polygon
  91                 sal_uInt32 i;
  92                 for( i=0; i<nNumPoints; ++i )
  93                 {
  94                     const ::basegfx::B2DPoint   aPoint( rPoly.getB2DPoint(i) );
  95
  96                     pOutput[i] = geometry::RealPoint2D( aPoint.getX(),
  97                                                         aPoint.getY() );
  98                 }
  99
 100                 return outputSequence;
 101             }
 102         }
 103
 104         //---------------------------------------------------------------------------------------
 105
 106         uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > bezierSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly )
 107         {
 108             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 109             sal_uInt32 i;
 110
 111             uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence( nNumPolies );
 112             uno::Sequence< geometry::RealBezierSegment2D >* pOutput = outputSequence.getArray();
 113
 114             for( i=0; i<nNumPolies; ++i )
 115             {
 116                 pOutput[i] = bezierSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 117             }
 118
 119             return outputSequence;
 120         }
 121
 122         //---------------------------------------------------------------------------------------
 123
 124         uno::Sequence< uno::Sequence< geometry::RealPoint2D > > pointSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly  )
 125         {
 126             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 127             sal_uInt32 i;
 128
 129             uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence( nNumPolies );
 130             uno::Sequence< geometry::RealPoint2D >* pOutput = outputSequence.getArray();
 131
 132             for( i=0; i<nNumPolies; ++i )
 133             {
 134                 pOutput[i] = pointSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 135             }
 136
 137             return outputSequence;
 138         }
 139
 140         //---------------------------------------------------------------------------------------
 141
 142         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 143                                                                                 const ::basegfx::B2DPolygon&                        rPoly    )
 144         {
 145             uno::Reference< rendering::XPolyPolygon2D > xRes;
 146
 147             if( !xGraphicDevice.is() )
 148                 return xRes;
 149
 150             if( rPoly.areControlPointsUsed() )
 151             {
 152                 uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence( 1 );
 153                 outputSequence[0] = bezierSequenceFromB2DPolygon( rPoly );
 154
 155                 xRes.set( xGraphicDevice->createCompatibleBezierPolyPolygon( outputSequence ),
 156                           uno::UNO_QUERY );
 157             }
 158             else
 159             {
 160                 uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence( 1 );
 161                 outputSequence[0] = pointSequenceFromB2DPolygon( rPoly );
 162
 163                 xRes.set( xGraphicDevice->createCompatibleLinePolyPolygon( outputSequence ),
 164                           uno::UNO_QUERY );
 165             }
 166
 167             if( xRes.is() && rPoly.isClosed() )
 168                 xRes->setClosed( 0, sal_True );
 169
 170             return xRes;
 171         }
 172
 173         //---------------------------------------------------------------------------------------
 174
 175         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolyPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 176                                                                                     const ::basegfx::B2DPolyPolygon&                    rPolyPoly    )
 177         {
 178             uno::Reference< rendering::XPolyPolygon2D > xRes;
 179
 180             if( !xGraphicDevice.is() )
 181                 return xRes;
 182
 183             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 184             sal_uInt32 i;
 185
 186             if( rPolyPoly.areControlPointsUsed() )
 187             {
 188                 xRes.set( xGraphicDevice->createCompatibleBezierPolyPolygon(
 189                               bezierSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) ),
 190                           uno::UNO_QUERY );
 191             }
 192             else
 193             {
 194                 xRes.set( xGraphicDevice->createCompatibleLinePolyPolygon(
 195                               pointSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) ),
 196                           uno::UNO_QUERY );
 197             }
 198
 199             for( i=0; i<nNumPolies; ++i )
 200             {
 201                 xRes->setClosed( i, rPolyPoly.getB2DPolygon(i).isClosed() );
 202             }
 203
 204             return xRes;
 205         }
 206
 207         //---------------------------------------------------------------------------------------
 208
 209         ::basegfx::B2DPolygon polygonFromPoint2DSequence( const uno::Sequence< geometry::RealPoint2D >& points )
 210         {
 211             const sal_Int32 nCurrSize( points.getLength() );
 212
 213             ::basegfx::B2DPolygon aPoly;
 214
 215             for( sal_Int32 nCurrPoint=0; nCurrPoint<nCurrSize; ++nCurrPoint )
 216                 aPoly.append( b2DPointFromRealPoint2D( points[nCurrPoint] ) );
 217
 218             return aPoly;
 219         }
 220
 221         //---------------------------------------------------------------------------------------
 222
 223         ::basegfx::B2DPolyPolygon polyPolygonFromPoint2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >& points )
 224         {
 225             ::basegfx::B2DPolyPolygon aRes;
 226
 227             for( sal_Int32 nCurrPoly=0; nCurrPoly<points.getLength(); ++nCurrPoly )
 228             {
 229                 aRes.append( polygonFromPoint2DSequence( points[nCurrPoly] ) );
 230             }
 231
 232             return aRes;
 233         }
 234
 235         //---------------------------------------------------------------------------------------
 236
 237         ::basegfx::B2DPolygon polygonFromBezier2DSequence( const uno::Sequence< geometry::RealBezierSegment2D >& curves )
 238         {
 239             const sal_Int32 nSize(curves.getLength());
 240             basegfx::B2DPolygon aRetval;
 241
 242             if(nSize)
 243             {
 244                 // prepare start with providing a start point. Use the first point from
 245                 // the sequence for this
 246                 const geometry::RealBezierSegment2D& rFirstSegment(curves[0]); // #i79917# first segment, not last
 247                 aRetval.append(basegfx::B2DPoint(rFirstSegment.Px, rFirstSegment.Py));
 248
 249                 for(sal_Int32 a(0); a < nSize; a++)
 250                 {
 251                     const geometry::RealBezierSegment2D& rCurrSegment(curves[a]);
 252                     const geometry::RealBezierSegment2D& rNextSegment(curves[(a + 1) % nSize]);
 253
 254                     // append curved edge with the control points and the next point
 255                     aRetval.appendBezierSegment(
 256                         basegfx::B2DPoint(rCurrSegment.C1x, rCurrSegment.C1y),
 257                         basegfx::B2DPoint(rCurrSegment.C2x, rCurrSegment.C2y), // #i79917# Argh! An x for an y!!
 258                         basegfx::B2DPoint(rNextSegment.Px, rNextSegment.Py));
 259                 }
 260
 261                 // rescue the control point and remove the now double-added point
 262                 aRetval.setPrevControlPoint(0, aRetval.getPrevControlPoint(aRetval.count() - 1));
 263                 aRetval.remove(aRetval.count() - 1);
 264             }
 265
 266             return aRetval;
 267         }
 268
 269         //---------------------------------------------------------------------------------------
 270
 271         ::basegfx::B2DPolyPolygon polyPolygonFromBezier2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >& curves )
 272         {
 273             ::basegfx::B2DPolyPolygon aRes;
 274
 275             for( sal_Int32 nCurrPoly=0; nCurrPoly<curves.getLength(); ++nCurrPoly )
 276             {
 277                 aRes.append( polygonFromBezier2DSequence( curves[nCurrPoly] ) );
 278             }
 279
 280             return aRes;
 281         }
 282
 283         //---------------------------------------------------------------------------------------
 284
 285         ::basegfx::B2DPolyPolygon b2DPolyPolygonFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly )
 286         {
 287             ::basegfx::unotools::UnoPolyPolygon* pPolyImpl =
 288                 dynamic_cast< ::basegfx::unotools::UnoPolyPolygon* >( xPoly.get() );
 289
 290             if( pPolyImpl )
 291             {
 292                 return pPolyImpl->getPolyPolygon();
 293             }
 294             else
 295             {
 296                 // not a known implementation object - try data source
 297                 // interfaces
 298                 const sal_Int32 nPolys( xPoly->getNumberOfPolygons() );
 299
 300                 uno::Reference< rendering::XBezierPolyPolygon2D > xBezierPoly(
 301                     xPoly,
 302                     uno::UNO_QUERY );
 303
 304                 if( xBezierPoly.is() )
 305                 {
 306                     return ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence(
 307                         xBezierPoly->getBezierSegments( 0,
 308                                                         nPolys,
 309                                                         0,
 310                                                         -1 ) );
 311                 }
 312                 else
 313                 {
 314                     uno::Reference< rendering::XLinePolyPolygon2D > xLinePoly(
 315                         xPoly,
 316                         uno::UNO_QUERY );
 317
 318                     // no implementation class and no data provider
 319                     // found - contract violation.
 320                     if( !xLinePoly.is() )
 321                     {
 322                         throw lang::IllegalArgumentException(
 323                             OUString(
 324                                     "basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(): Invalid input"
 325                                     "poly-polygon, cannot retrieve vertex data"),
 326                             uno::Reference< uno::XInterface >(),
 327                             0 );
 328                     }
 329
 330                     return ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence(
 331                         xLinePoly->getPoints( 0,
 332                                               nPolys,
 333                                               0,
 334                                               -1 ));
 335                 }
 336             }
 337         }
 338
 339         //---------------------------------------------------------------------------------------
 340
 341         ::basegfx::B2DHomMatrix& homMatrixFromAffineMatrix( ::basegfx::B2DHomMatrix&        output,
 342                                                             const geometry::AffineMatrix2D& input )
 343         {
 344             // ensure last row is [0,0,1] (and optimized away)
 345             output.identity();
 346
 347             output.set(0,0, input.m00);
 348             output.set(0,1, input.m01);
 349             output.set(0,2, input.m02);
 350             output.set(1,0, input.m10);
 351             output.set(1,1, input.m11);
 352             output.set(1,2, input.m12);
 353
 354             return output;
 355         }
 356
 357         ::basegfx::B3DHomMatrix homMatrixFromAffineMatrix3D( const ::com::sun::star::geometry::AffineMatrix3D& input )
 358         {
 359             ::basegfx::B3DHomMatrix output;
 360
 361             output.set(0,0, input.m00);
 362             output.set(0,1, input.m01);
 363             output.set(0,2, input.m02);
 364             output.set(0,3, input.m03);
 365
 366             output.set(1,0, input.m10);
 367             output.set(1,1, input.m11);
 368             output.set(1,2, input.m12);
 369             output.set(1,3, input.m13);
 370
 371             output.set(2,0, input.m20);
 372             output.set(2,1, input.m21);
 373             output.set(2,2, input.m22);
 374             output.set(2,3, input.m23);
 375
 376             return output;
 377         }
 378
 379         geometry::AffineMatrix2D& affineMatrixFromHomMatrix( geometry::AffineMatrix2D&      output,
 380                                                              const ::basegfx::B2DHomMatrix& input)
 381         {
 382             output.m00 = input.get(0,0);
 383             output.m01 = input.get(0,1);
 384             output.m02 = input.get(0,2);
 385             output.m10 = input.get(1,0);
 386             output.m11 = input.get(1,1);
 387             output.m12 = input.get(1,2);
 388
 389             return output;
 390         }
 391
 392         geometry::AffineMatrix3D& affineMatrixFromHomMatrix3D(
 393             geometry::AffineMatrix3D& output,
 394             const ::basegfx::B3DHomMatrix&  input)
 395         {
 396             output.m00 = input.get(0,0);
 397             output.m01 = input.get(0,1);
 398             output.m02 = input.get(0,2);
 399             output.m03 = input.get(0,3);
 400
 401             output.m10 = input.get(1,0);
 402             output.m11 = input.get(1,1);
 403             output.m12 = input.get(1,2);
 404             output.m13 = input.get(1,3);
 405
 406             output.m20 = input.get(2,0);
 407             output.m21 = input.get(2,1);
 408             output.m22 = input.get(2,2);
 409             output.m23 = input.get(2,3);
 410
 411             return output;
 412         }
 413
 414         //---------------------------------------------------------------------------------------
 415
 416         ::basegfx::B2DHomMatrix& homMatrixFromMatrix( ::basegfx::B2DHomMatrix&  output,
 417                                                       const geometry::Matrix2D& input )
 418         {
 419             // ensure last row is [0,0,1] (and optimized away)
 420             output.identity();
 421
 422             output.set(0,0, input.m00);
 423             output.set(0,1, input.m01);
 424             output.set(1,0, input.m10);
 425             output.set(1,1, input.m11);
 426
 427             return output;
 428         }
 429
 430         //---------------------------------------------------------------------------------------
 431
 432         geometry::RealSize2D size2DFromB2DSize( const ::basegfx::B2DVector& rVec )
 433         {
 434             return geometry::RealSize2D( rVec.getX(),
 435                                          rVec.getY() );
 436         }
 437
 438         geometry::RealPoint2D point2DFromB2DPoint( const ::basegfx::B2DPoint& rPoint )
 439         {
 440             return geometry::RealPoint2D( rPoint.getX(),
 441                                           rPoint.getY() );
 442         }
 443
 444         geometry::RealRectangle2D rectangle2DFromB2DRectangle( const ::basegfx::B2DRange& rRect )
 445         {
 446             return geometry::RealRectangle2D( rRect.getMinX(),
 447                                               rRect.getMinY(),
 448                                               rRect.getMaxX(),
 449                                               rRect.getMaxY() );
 450         }
 451
 452         geometry::RealRectangle3D rectangle3DFromB3DRectangle( const ::basegfx::B3DRange& rRect )
 453         {
 454             return geometry::RealRectangle3D( rRect.getMinX(),
 455                                               rRect.getMinY(),
 456                                               rRect.getMinZ(),
 457                                               rRect.getMaxX(),
 458                                               rRect.getMaxY(),
 459                                               rRect.getMaxZ());
 460         }
 461
 462         ::basegfx::B2DPoint b2DPointFromRealPoint2D( const geometry::RealPoint2D& rPoint )
 463         {
 464             return ::basegfx::B2DPoint( rPoint.X,
 465                                         rPoint.Y );
 466         }
 467
 468         ::basegfx::B2DRange b2DRectangleFromRealRectangle2D( const geometry::RealRectangle2D& rRect )
 469         {
 470             return ::basegfx::B2DRange( rRect.X1,
 471                                         rRect.Y1,
 472                                         rRect.X2,
 473                                         rRect.Y2 );
 474         }
 475
 476         ::basegfx::B3DRange b3DRectangleFromRealRectangle3D( const geometry::RealRectangle3D& rRect )
 477         {
 478             return ::basegfx::B3DRange( rRect.X1,
 479                                         rRect.Y1,
 480                                         rRect.Z1,
 481                                         rRect.X2,
 482                                         rRect.Y2,
 483                                         rRect.Z2);
 484         }
 485
 486         geometry::IntegerSize2D integerSize2DFromB2ISize( const ::basegfx::B2IVector& rSize )
 487         {
 488             return geometry::IntegerSize2D( rSize.getX(),
 489                                             rSize.getY() );
 490         }
 491
 492         ::basegfx::B2IVector b2ISizeFromIntegerSize2D( const geometry::IntegerSize2D& rSize )
 493         {
 494             return ::basegfx::B2IVector( rSize.Width,
 495                                          rSize.Height );
 496         }
 497
 498         ::basegfx::B2IRange b2IRectangleFromIntegerRectangle2D( const geometry::IntegerRectangle2D& rRectangle )
 499         {
 500             return ::basegfx::B2IRange( rRectangle.X1, rRectangle.Y1,
 501                                         rRectangle.X2, rRectangle.Y2 );
 502         }
 503
 504         ::basegfx::B2IRange b2IRectangleFromAwtRectangle( const awt::Rectangle& rRect )
 505         {
 506             return ::basegfx::B2IRange( rRect.X,
 507                                         rRect.Y,
 508                                         rRect.X + rRect.Width,
 509                                         rRect.Y + rRect.Height );
 510         }
 511
 512         ::basegfx::B2IBox b2ISurroundingBoxFromB2DRange( const ::basegfx::B2DRange& rRange )
 513         {
 514             return ::basegfx::B2IBox( static_cast<sal_Int32>( floor(rRange.getMinX()) ),
 515                                       static_cast<sal_Int32>( floor(rRange.getMinY()) ),
 516                                       static_cast<sal_Int32>( ceil(rRange.getMaxX()) ),
 517                                       static_cast<sal_Int32>( ceil(rRange.getMaxY()) ) );
 518         }
 519
 520         ::basegfx::B2IRange b2ISurroundingRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 521         {
 522             return ::basegfx::B2IRange( static_cast<sal_Int32>( floor(rRange.getMinX()) ),
 523                                         static_cast<sal_Int32>( floor(rRange.getMinY()) ),
 524                                         static_cast<sal_Int32>( ceil(rRange.getMaxX()) ),
 525                                         static_cast<sal_Int32>( ceil(rRange.getMaxY()) ) );
 526         }
 527
 528         ::basegfx::B2DRange b2DSurroundingIntegerRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 529         {
 530             return ::basegfx::B2DRange( floor(rRange.getMinX()),
 531                                         floor(rRange.getMinY()),
 532                                         ceil(rRange.getMaxX()),
 533                                         ceil(rRange.getMaxY()) );
 534         }
 535
 536     } // namespace bgfxtools
 537
 538 } // namespace canvas
 539
 540 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */