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