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/IntegerSize2D.hpp>
  28 #include <com/sun/star/geometry/IntegerRectangle2D.hpp>
  29 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  30 #include <com/sun/star/rendering/XPolyPolygon2D.hpp>
  31 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  32 #include <com/sun/star/awt/Rectangle.hpp>
  33 #include <basegfx/utils/unopolypolygon.hxx>
  34 #include <basegfx/matrix/b2dhommatrix.hxx>
  35 #include <basegfx/matrix/b3dhommatrix.hxx>
  36 #include <basegfx/point/b2dpoint.hxx>
  37 #include <basegfx/range/b3drange.hxx>
  38 #include <basegfx/range/b2irange.hxx>
  39 #include <basegfx/polygon/b2dpolygon.hxx>
  40 #include <basegfx/polygon/b2dpolypolygon.hxx>
  41 #include <basegfx/utils/canvastools.hxx>
  42
  43 using namespace ::com::sun::star;
  44
  45 namespace basegfx
  46 {
  47
  48     namespace unotools
  49     {
  50         namespace
  51         {
  52             uno::Sequence< geometry::RealBezierSegment2D > bezierSequenceFromB2DPolygon(const ::basegfx::B2DPolygon& rPoly)
  53             {
  54                 const sal_uInt32 nPointCount(rPoly.count());
  55                 uno::Sequence< geometry::RealBezierSegment2D > outputSequence(nPointCount);
  56                 geometry::RealBezierSegment2D* pOutput = outputSequence.getArray();
  57
  58                 // fill sequences and imply closed polygon on this implementation layer
  59                 for(sal_uInt32 a(0); a < nPointCount; a++)
  60                 {
  61                     const basegfx::B2DPoint aStart(rPoly.getB2DPoint(a));
  62                     const basegfx::B2DPoint aControlA(rPoly.getNextControlPoint(a));
  63                     const basegfx::B2DPoint aControlB(rPoly.getPrevControlPoint((a + 1) % nPointCount));
  64
  65                     pOutput[a] = geometry::RealBezierSegment2D(
  66                         aStart.getX(), aStart.getY(),
  67                         aControlA.getX(), aControlA.getY(),
  68                         aControlB.getX(), aControlB.getY());
  69                 }
  70
  71                 return outputSequence;
  72             }
  73
  74             uno::Sequence< geometry::RealPoint2D > pointSequenceFromB2DPolygon( const ::basegfx::B2DPolygon& rPoly )
  75             {
  76                 const sal_uInt32 nNumPoints( rPoly.count() );
  77
  78                 uno::Sequence< geometry::RealPoint2D > outputSequence( nNumPoints );
  79                 geometry::RealPoint2D* pOutput = outputSequence.getArray();
  80
  81                 // fill sequence from polygon
  82                 sal_uInt32 i;
  83                 for( i=0; i<nNumPoints; ++i )
  84                 {
  85                     const ::basegfx::B2DPoint   aPoint( rPoly.getB2DPoint(i) );
  86
  87                     pOutput[i] = geometry::RealPoint2D( aPoint.getX(),
  88                                                         aPoint.getY() );
  89                 }
  90
  91                 return outputSequence;
  92             }
  93         }
  94
  95         uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > bezierSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly )
  96         {
  97             const sal_uInt32 nNumPolies( rPolyPoly.count() );
  98             sal_uInt32 i;
  99
 100             uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence( nNumPolies );
 101             uno::Sequence< geometry::RealBezierSegment2D >* pOutput = outputSequence.getArray();
 102
 103             for( i=0; i<nNumPolies; ++i )
 104             {
 105                 pOutput[i] = bezierSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 106             }
 107
 108             return outputSequence;
 109         }
 110
 111         uno::Sequence< uno::Sequence< geometry::RealPoint2D > > pointSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly  )
 112         {
 113             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 114             sal_uInt32 i;
 115
 116             uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence( nNumPolies );
 117             uno::Sequence< geometry::RealPoint2D >* pOutput = outputSequence.getArray();
 118
 119             for( i=0; i<nNumPolies; ++i )
 120             {
 121                 pOutput[i] = pointSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 122             }
 123
 124             return outputSequence;
 125         }
 126
 127         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 128                                                                                 const ::basegfx::B2DPolygon&                        rPoly    )
 129         {
 130             uno::Reference< rendering::XPolyPolygon2D > xRes;
 131
 132             if( !xGraphicDevice.is() )
 133                 return xRes;
 134
 135             if( rPoly.areControlPointsUsed() )
 136             {
 137                 uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence( 1 );
 138                 outputSequence[0] = bezierSequenceFromB2DPolygon( rPoly );
 139
 140                 xRes = xGraphicDevice->createCompatibleBezierPolyPolygon( outputSequence );
 141             }
 142             else
 143             {
 144                 uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence( 1 );
 145                 outputSequence[0] = pointSequenceFromB2DPolygon( rPoly );
 146
 147                 xRes = xGraphicDevice->createCompatibleLinePolyPolygon( outputSequence );
 148             }
 149
 150             if( xRes.is() && rPoly.isClosed() )
 151                 xRes->setClosed( 0, true );
 152
 153             return xRes;
 154         }
 155
 156         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolyPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 157                                                                                     const ::basegfx::B2DPolyPolygon&                    rPolyPoly    )
 158         {
 159             uno::Reference< rendering::XPolyPolygon2D > xRes;
 160
 161             if( !xGraphicDevice.is() )
 162                 return xRes;
 163
 164             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 165             sal_uInt32 i;
 166
 167             if( rPolyPoly.areControlPointsUsed() )
 168             {
 169                 xRes = xGraphicDevice->createCompatibleBezierPolyPolygon(
 170                               bezierSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) );
 171             }
 172             else
 173             {
 174                 xRes = xGraphicDevice->createCompatibleLinePolyPolygon(
 175                               pointSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) );
 176             }
 177
 178             for( i=0; i<nNumPolies; ++i )
 179             {
 180                 xRes->setClosed( i, rPolyPoly.getB2DPolygon(i).isClosed() );
 181             }
 182
 183             return xRes;
 184         }
 185
 186         ::basegfx::B2DPolygon polygonFromPoint2DSequence( const uno::Sequence< geometry::RealPoint2D >& points )
 187         {
 188             const sal_Int32 nCurrSize( points.getLength() );
 189
 190             ::basegfx::B2DPolygon aPoly;
 191
 192             for( sal_Int32 nCurrPoint=0; nCurrPoint<nCurrSize; ++nCurrPoint )
 193                 aPoly.append( b2DPointFromRealPoint2D( points[nCurrPoint] ) );
 194
 195             return aPoly;
 196         }
 197
 198         ::basegfx::B2DPolyPolygon polyPolygonFromPoint2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >& points )
 199         {
 200             ::basegfx::B2DPolyPolygon aRes;
 201
 202             for( sal_Int32 nCurrPoly=0; nCurrPoly<points.getLength(); ++nCurrPoly )
 203             {
 204                 aRes.append( polygonFromPoint2DSequence( points[nCurrPoly] ) );
 205             }
 206
 207             return aRes;
 208         }
 209
 210         ::basegfx::B2DPolygon polygonFromBezier2DSequence( const uno::Sequence< geometry::RealBezierSegment2D >& curves )
 211         {
 212             const sal_Int32 nSize(curves.getLength());
 213             basegfx::B2DPolygon aRetval;
 214
 215             if(nSize)
 216             {
 217                 // prepare start with providing a start point. Use the first point from
 218                 // the sequence for this
 219                 const geometry::RealBezierSegment2D& rFirstSegment(curves[0]); // #i79917# first segment, not last
 220                 aRetval.append(basegfx::B2DPoint(rFirstSegment.Px, rFirstSegment.Py));
 221
 222                 for(sal_Int32 a(0); a < nSize; a++)
 223                 {
 224                     const geometry::RealBezierSegment2D& rCurrSegment(curves[a]);
 225                     const geometry::RealBezierSegment2D& rNextSegment(curves[(a + 1) % nSize]);
 226
 227                     // append curved edge with the control points and the next point
 228                     aRetval.appendBezierSegment(
 229                         basegfx::B2DPoint(rCurrSegment.C1x, rCurrSegment.C1y),
 230                         basegfx::B2DPoint(rCurrSegment.C2x, rCurrSegment.C2y), // #i79917# Argh! An x for an y!!
 231                         basegfx::B2DPoint(rNextSegment.Px, rNextSegment.Py));
 232                 }
 233
 234                 // rescue the control point and remove the now double-added point
 235                 aRetval.setPrevControlPoint(0, aRetval.getPrevControlPoint(aRetval.count() - 1));
 236                 aRetval.remove(aRetval.count() - 1);
 237             }
 238
 239             return aRetval;
 240         }
 241
 242         ::basegfx::B2DPolyPolygon polyPolygonFromBezier2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >& curves )
 243         {
 244             ::basegfx::B2DPolyPolygon aRes;
 245
 246             for( sal_Int32 nCurrPoly=0; nCurrPoly<curves.getLength(); ++nCurrPoly )
 247             {
 248                 aRes.append( polygonFromBezier2DSequence( curves[nCurrPoly] ) );
 249             }
 250
 251             return aRes;
 252         }
 253
 254         ::basegfx::B2DPolyPolygon b2DPolyPolygonFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly )
 255         {
 256             ::basegfx::unotools::UnoPolyPolygon* pPolyImpl =
 257                 dynamic_cast< ::basegfx::unotools::UnoPolyPolygon* >( xPoly.get() );
 258
 259             if( pPolyImpl )
 260             {
 261                 return pPolyImpl->getPolyPolygon();
 262             }
 263             else
 264             {
 265                 // not a known implementation object - try data source
 266                 // interfaces
 267                 const sal_Int32 nPolys( xPoly->getNumberOfPolygons() );
 268
 269                 uno::Reference< rendering::XBezierPolyPolygon2D > xBezierPoly(
 270                     xPoly,
 271                     uno::UNO_QUERY );
 272
 273                 if( xBezierPoly.is() )
 274                 {
 275                     return ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence(
 276                         xBezierPoly->getBezierSegments( 0,
 277                                                         nPolys,
 278                                                         0,
 279                                                         -1 ) );
 280                 }
 281                 else
 282                 {
 283                     uno::Reference< rendering::XLinePolyPolygon2D > xLinePoly(
 284                         xPoly,
 285                         uno::UNO_QUERY );
 286
 287                     // no implementation class and no data provider
 288                     // found - contract violation.
 289                     if( !xLinePoly.is() )
 290                     {
 291                         throw lang::IllegalArgumentException(
 292                             "basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(): Invalid input"
 293                             "poly-polygon, cannot retrieve vertex data",
 294                             uno::Reference< uno::XInterface >(),
 295                             0 );
 296                     }
 297
 298                     return ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence(
 299                         xLinePoly->getPoints( 0,
 300                                               nPolys,
 301                                               0,
 302                                               -1 ));
 303                 }
 304             }
 305         }
 306
 307         ::basegfx::B2DHomMatrix& homMatrixFromAffineMatrix( ::basegfx::B2DHomMatrix&        output,
 308                                                             const geometry::AffineMatrix2D& input )
 309         {
 310             // ensure last row is [0,0,1] (and optimized away)
 311             output.identity();
 312
 313             output.set(0,0, input.m00);
 314             output.set(0,1, input.m01);
 315             output.set(0,2, input.m02);
 316             output.set(1,0, input.m10);
 317             output.set(1,1, input.m11);
 318             output.set(1,2, input.m12);
 319
 320             return output;
 321         }
 322
 323         ::basegfx::B3DHomMatrix homMatrixFromAffineMatrix3D( const ::css::geometry::AffineMatrix3D& input )
 324         {
 325             ::basegfx::B3DHomMatrix output;
 326
 327             output.set(0,0, input.m00);
 328             output.set(0,1, input.m01);
 329             output.set(0,2, input.m02);
 330             output.set(0,3, input.m03);
 331
 332             output.set(1,0, input.m10);
 333             output.set(1,1, input.m11);
 334             output.set(1,2, input.m12);
 335             output.set(1,3, input.m13);
 336
 337             output.set(2,0, input.m20);
 338             output.set(2,1, input.m21);
 339             output.set(2,2, input.m22);
 340             output.set(2,3, input.m23);
 341
 342             return output;
 343         }
 344
 345         geometry::AffineMatrix2D& affineMatrixFromHomMatrix( geometry::AffineMatrix2D&      output,
 346                                                              const ::basegfx::B2DHomMatrix& input)
 347         {
 348             output.m00 = input.get(0,0);
 349             output.m01 = input.get(0,1);
 350             output.m02 = input.get(0,2);
 351             output.m10 = input.get(1,0);
 352             output.m11 = input.get(1,1);
 353             output.m12 = input.get(1,2);
 354
 355             return output;
 356         }
 357
 358         geometry::AffineMatrix3D& affineMatrixFromHomMatrix3D(
 359             geometry::AffineMatrix3D& output,
 360             const ::basegfx::B3DHomMatrix&  input)
 361         {
 362             output.m00 = input.get(0,0);
 363             output.m01 = input.get(0,1);
 364             output.m02 = input.get(0,2);
 365             output.m03 = input.get(0,3);
 366
 367             output.m10 = input.get(1,0);
 368             output.m11 = input.get(1,1);
 369             output.m12 = input.get(1,2);
 370             output.m13 = input.get(1,3);
 371
 372             output.m20 = input.get(2,0);
 373             output.m21 = input.get(2,1);
 374             output.m22 = input.get(2,2);
 375             output.m23 = input.get(2,3);
 376
 377             return output;
 378         }
 379
 380         geometry::RealSize2D size2DFromB2DSize( const ::basegfx::B2DVector& rVec )
 381         {
 382             return geometry::RealSize2D( rVec.getX(),
 383                                          rVec.getY() );
 384         }
 385
 386         geometry::RealPoint2D point2DFromB2DPoint( const ::basegfx::B2DPoint& rPoint )
 387         {
 388             return geometry::RealPoint2D( rPoint.getX(),
 389                                           rPoint.getY() );
 390         }
 391
 392         geometry::RealRectangle2D rectangle2DFromB2DRectangle( const ::basegfx::B2DRange& rRect )
 393         {
 394             return geometry::RealRectangle2D( rRect.getMinX(),
 395                                               rRect.getMinY(),
 396                                               rRect.getMaxX(),
 397                                               rRect.getMaxY() );
 398         }
 399
 400         geometry::RealRectangle3D rectangle3DFromB3DRectangle( const ::basegfx::B3DRange& rRect )
 401         {
 402             return geometry::RealRectangle3D( rRect.getMinX(),
 403                                               rRect.getMinY(),
 404                                               rRect.getMinZ(),
 405                                               rRect.getMaxX(),
 406                                               rRect.getMaxY(),
 407                                               rRect.getMaxZ());
 408         }
 409
 410         ::basegfx::B2DPoint b2DPointFromRealPoint2D( const geometry::RealPoint2D& rPoint )
 411         {
 412             return ::basegfx::B2DPoint( rPoint.X,
 413                                         rPoint.Y );
 414         }
 415
 416         ::basegfx::B2DRange b2DRectangleFromRealRectangle2D( const geometry::RealRectangle2D& rRect )
 417         {
 418             return ::basegfx::B2DRange( rRect.X1,
 419                                         rRect.Y1,
 420                                         rRect.X2,
 421                                         rRect.Y2 );
 422         }
 423
 424         ::basegfx::B3DRange b3DRectangleFromRealRectangle3D( const geometry::RealRectangle3D& rRect )
 425         {
 426             return ::basegfx::B3DRange( rRect.X1,
 427                                         rRect.Y1,
 428                                         rRect.Z1,
 429                                         rRect.X2,
 430                                         rRect.Y2,
 431                                         rRect.Z2);
 432         }
 433
 434         geometry::IntegerSize2D integerSize2DFromB2ISize( const ::basegfx::B2IVector& rSize )
 435         {
 436             return geometry::IntegerSize2D( rSize.getX(),
 437                                             rSize.getY() );
 438         }
 439
 440         ::basegfx::B2IVector b2ISizeFromIntegerSize2D( const geometry::IntegerSize2D& rSize )
 441         {
 442             return ::basegfx::B2IVector( rSize.Width,
 443                                          rSize.Height );
 444         }
 445
 446         ::basegfx::B2IRange b2IRectangleFromIntegerRectangle2D( const geometry::IntegerRectangle2D& rRectangle )
 447         {
 448             return ::basegfx::B2IRange( rRectangle.X1, rRectangle.Y1,
 449                                         rRectangle.X2, rRectangle.Y2 );
 450         }
 451
 452         ::basegfx::B2IRange b2IRectangleFromAwtRectangle( const awt::Rectangle& rRect )
 453         {
 454             return ::basegfx::B2IRange( rRect.X,
 455                                         rRect.Y,
 456                                         rRect.X + rRect.Width,
 457                                         rRect.Y + rRect.Height );
 458         }
 459
 460         ::basegfx::B2IRange b2ISurroundingRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 461         {
 462             return ::basegfx::B2IRange( static_cast<sal_Int32>( floor(rRange.getMinX()) ),
 463                                         static_cast<sal_Int32>( floor(rRange.getMinY()) ),
 464                                         static_cast<sal_Int32>( ceil(rRange.getMaxX()) ),
 465                                         static_cast<sal_Int32>( ceil(rRange.getMaxY()) ) );
 466         }
 467
 468         ::basegfx::B2DRange b2DSurroundingIntegerRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 469         {
 470             return ::basegfx::B2DRange( floor(rRange.getMinX()),
 471                                         floor(rRange.getMinY()),
 472                                         ceil(rRange.getMaxX()),
 473                                         ceil(rRange.getMaxY()) );
 474         }
 475
 476     } // namespace bgfxtools
 477
 478 } // namespace canvas
 479
 480 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */