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/vector/b2dsize.hxx>
  38 #include <basegfx/vector/b2ivector.hxx>
  39 #include <basegfx/range/b3drange.hxx>
  40 #include <basegfx/range/b2irange.hxx>
  41 #include <basegfx/polygon/b2dpolygon.hxx>
  42 #include <basegfx/polygon/b2dpolypolygon.hxx>
  43 #include <basegfx/utils/canvastools.hxx>
  44
  45 using namespace ::com::sun::star;
  46
  47 namespace basegfx::unotools
  48 {
  49         namespace
  50         {
  51             uno::Sequence< geometry::RealBezierSegment2D > bezierSequenceFromB2DPolygon(const ::basegfx::B2DPolygon& rPoly)
  52             {
  53                 const sal_uInt32 nPointCount(rPoly.count());
  54                 uno::Sequence< geometry::RealBezierSegment2D > outputSequence(nPointCount);
  55                 geometry::RealBezierSegment2D* pOutput = outputSequence.getArray();
  56
  57                 // fill sequences and imply closed polygon on this implementation layer
  58                 for(sal_uInt32 a(0); a < nPointCount; a++)
  59                 {
  60                     const basegfx::B2DPoint aStart(rPoly.getB2DPoint(a));
  61                     const basegfx::B2DPoint aControlA(rPoly.getNextControlPoint(a));
  62                     const basegfx::B2DPoint aControlB(rPoly.getPrevControlPoint((a + 1) % nPointCount));
  63
  64                     pOutput[a] = geometry::RealBezierSegment2D(
  65                         aStart.getX(), aStart.getY(),
  66                         aControlA.getX(), aControlA.getY(),
  67                         aControlB.getX(), aControlB.getY());
  68                 }
  69
  70                 return outputSequence;
  71             }
  72
  73             uno::Sequence< geometry::RealPoint2D > pointSequenceFromB2DPolygon( const ::basegfx::B2DPolygon& rPoly )
  74             {
  75                 const sal_uInt32 nNumPoints( rPoly.count() );
  76
  77                 uno::Sequence< geometry::RealPoint2D > outputSequence( nNumPoints );
  78                 geometry::RealPoint2D* pOutput = outputSequence.getArray();
  79
  80                 // fill sequence from polygon
  81                 sal_uInt32 i;
  82                 for( i=0; i<nNumPoints; ++i )
  83                 {
  84                     const ::basegfx::B2DPoint   aPoint( rPoly.getB2DPoint(i) );
  85
  86                     pOutput[i] = geometry::RealPoint2D( aPoint.getX(),
  87                                                         aPoint.getY() );
  88                 }
  89
  90                 return outputSequence;
  91             }
  92         }
  93
  94         uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > bezierSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly )
  95         {
  96             const sal_uInt32 nNumPolies( rPolyPoly.count() );
  97             sal_uInt32 i;
  98
  99             uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence( nNumPolies );
 100             uno::Sequence< geometry::RealBezierSegment2D >* pOutput = outputSequence.getArray();
 101
 102             for( i=0; i<nNumPolies; ++i )
 103             {
 104                 pOutput[i] = bezierSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 105             }
 106
 107             return outputSequence;
 108         }
 109
 110         uno::Sequence< uno::Sequence< geometry::RealPoint2D > > pointSequenceSequenceFromB2DPolyPolygon( const ::basegfx::B2DPolyPolygon& rPolyPoly  )
 111         {
 112             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 113             sal_uInt32 i;
 114
 115             uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence( nNumPolies );
 116             uno::Sequence< geometry::RealPoint2D >* pOutput = outputSequence.getArray();
 117
 118             for( i=0; i<nNumPolies; ++i )
 119             {
 120                 pOutput[i] = pointSequenceFromB2DPolygon( rPolyPoly.getB2DPolygon(i) );
 121             }
 122
 123             return outputSequence;
 124         }
 125
 126         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 127                                                                                 const ::basegfx::B2DPolygon&                        rPoly    )
 128         {
 129             uno::Reference< rendering::XPolyPolygon2D > xRes;
 130
 131             if( !xGraphicDevice.is() )
 132                 return xRes;
 133
 134             if( rPoly.areControlPointsUsed() )
 135             {
 136                 uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > > outputSequence{ bezierSequenceFromB2DPolygon( rPoly )};
 137
 138                 xRes = xGraphicDevice->createCompatibleBezierPolyPolygon( outputSequence );
 139             }
 140             else
 141             {
 142                 uno::Sequence< uno::Sequence< geometry::RealPoint2D > > outputSequence{
 143                  pointSequenceFromB2DPolygon( rPoly )};
 144
 145                 xRes = xGraphicDevice->createCompatibleLinePolyPolygon( outputSequence );
 146             }
 147
 148             if( xRes.is() && rPoly.isClosed() )
 149                 xRes->setClosed( 0, true );
 150
 151             return xRes;
 152         }
 153
 154         uno::Reference< rendering::XPolyPolygon2D > xPolyPolygonFromB2DPolyPolygon( const uno::Reference< rendering::XGraphicDevice >&  xGraphicDevice,
 155                                                                                     const ::basegfx::B2DPolyPolygon&                    rPolyPoly    )
 156         {
 157             uno::Reference< rendering::XPolyPolygon2D > xRes;
 158
 159             if( !xGraphicDevice.is() )
 160                 return xRes;
 161
 162             const sal_uInt32 nNumPolies( rPolyPoly.count() );
 163             sal_uInt32 i;
 164
 165             if( rPolyPoly.areControlPointsUsed() )
 166             {
 167                 xRes = xGraphicDevice->createCompatibleBezierPolyPolygon(
 168                               bezierSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) );
 169             }
 170             else
 171             {
 172                 xRes = xGraphicDevice->createCompatibleLinePolyPolygon(
 173                               pointSequenceSequenceFromB2DPolyPolygon( rPolyPoly ) );
 174             }
 175
 176             for( i=0; i<nNumPolies; ++i )
 177             {
 178                 xRes->setClosed( i, rPolyPoly.getB2DPolygon(i).isClosed() );
 179             }
 180
 181             return xRes;
 182         }
 183
 184         ::basegfx::B2DPolygon polygonFromPoint2DSequence( const uno::Sequence< geometry::RealPoint2D >& points )
 185         {
 186             const sal_Int32 nCurrSize( points.getLength() );
 187
 188             ::basegfx::B2DPolygon aPoly;
 189
 190             for( sal_Int32 nCurrPoint=0; nCurrPoint<nCurrSize; ++nCurrPoint )
 191                 aPoly.append( b2DPointFromRealPoint2D( points[nCurrPoint] ) );
 192
 193             return aPoly;
 194         }
 195
 196         ::basegfx::B2DPolyPolygon polyPolygonFromPoint2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >& points )
 197         {
 198             ::basegfx::B2DPolyPolygon aRes;
 199
 200             for( const auto & p : points )
 201             {
 202                 aRes.append( polygonFromPoint2DSequence( p ) );
 203             }
 204
 205             return aRes;
 206         }
 207
 208         ::basegfx::B2DPolygon polygonFromBezier2DSequence( const uno::Sequence< geometry::RealBezierSegment2D >& curves )
 209         {
 210             const sal_Int32 nSize(curves.getLength());
 211             basegfx::B2DPolygon aRetval;
 212
 213             if(nSize)
 214             {
 215                 // prepare start with providing a start point. Use the first point from
 216                 // the sequence for this
 217                 const geometry::RealBezierSegment2D& rFirstSegment(curves[0]); // #i79917# first segment, not last
 218                 aRetval.append(basegfx::B2DPoint(rFirstSegment.Px, rFirstSegment.Py));
 219
 220                 for(sal_Int32 a(0); a < nSize; a++)
 221                 {
 222                     const geometry::RealBezierSegment2D& rCurrSegment(curves[a]);
 223                     const geometry::RealBezierSegment2D& rNextSegment(curves[(a + 1) % nSize]);
 224
 225                     // append curved edge with the control points and the next point
 226                     aRetval.appendBezierSegment(
 227                         basegfx::B2DPoint(rCurrSegment.C1x, rCurrSegment.C1y),
 228                         basegfx::B2DPoint(rCurrSegment.C2x, rCurrSegment.C2y), // #i79917# Argh! An x for an y!!
 229                         basegfx::B2DPoint(rNextSegment.Px, rNextSegment.Py));
 230                 }
 231
 232                 // rescue the control point and remove the now double-added point
 233                 aRetval.setPrevControlPoint(0, aRetval.getPrevControlPoint(aRetval.count() - 1));
 234                 aRetval.remove(aRetval.count() - 1);
 235             }
 236
 237             return aRetval;
 238         }
 239
 240         ::basegfx::B2DPolyPolygon polyPolygonFromBezier2DSequenceSequence( const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >& curves )
 241         {
 242             ::basegfx::B2DPolyPolygon aRes;
 243
 244             for( const auto & c : curves )
 245             {
 246                 aRes.append( polygonFromBezier2DSequence( c ) );
 247             }
 248
 249             return aRes;
 250         }
 251
 252         ::basegfx::B2DPolyPolygon b2DPolyPolygonFromXPolyPolygon2D( const uno::Reference< rendering::XPolyPolygon2D >& xPoly )
 253         {
 254             ::basegfx::unotools::UnoPolyPolygon* pPolyImpl =
 255                 dynamic_cast< ::basegfx::unotools::UnoPolyPolygon* >( xPoly.get() );
 256
 257             if( pPolyImpl )
 258             {
 259                 return pPolyImpl->getPolyPolygon();
 260             }
 261             else
 262             {
 263                 // not a known implementation object - try data source
 264                 // interfaces
 265                 const sal_Int32 nPolys( xPoly->getNumberOfPolygons() );
 266
 267                 uno::Reference< rendering::XBezierPolyPolygon2D > xBezierPoly(
 268                     xPoly,
 269                     uno::UNO_QUERY );
 270
 271                 if( xBezierPoly.is() )
 272                 {
 273                     return ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence(
 274                         xBezierPoly->getBezierSegments( 0,
 275                                                         nPolys,
 276                                                         0,
 277                                                         -1 ) );
 278                 }
 279                 else
 280                 {
 281                     uno::Reference< rendering::XLinePolyPolygon2D > xLinePoly(
 282                         xPoly,
 283                         uno::UNO_QUERY );
 284
 285                     // no implementation class and no data provider
 286                     // found - contract violation.
 287                     if( !xLinePoly.is() )
 288                     {
 289                         throw lang::IllegalArgumentException(
 290                             "basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(): Invalid input"
 291                             "poly-polygon, cannot retrieve vertex data",
 292                             uno::Reference< uno::XInterface >(),
 293                             0 );
 294                     }
 295
 296                     return ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence(
 297                         xLinePoly->getPoints( 0,
 298                                               nPolys,
 299                                               0,
 300                                               -1 ));
 301                 }
 302             }
 303         }
 304
 305         ::basegfx::B2DHomMatrix& homMatrixFromAffineMatrix( ::basegfx::B2DHomMatrix&        output,
 306                                                             const geometry::AffineMatrix2D& input )
 307         {
 308             // ensure last row is [0,0,1] (and optimized away)
 309             output.identity();
 310
 311             output.set(0,0, input.m00);
 312             output.set(0,1, input.m01);
 313             output.set(0,2, input.m02);
 314             output.set(1,0, input.m10);
 315             output.set(1,1, input.m11);
 316             output.set(1,2, input.m12);
 317
 318             return output;
 319         }
 320
 321         ::basegfx::B3DHomMatrix homMatrixFromAffineMatrix3D( const ::css::geometry::AffineMatrix3D& input )
 322         {
 323             ::basegfx::B3DHomMatrix output;
 324
 325             output.set(0,0, input.m00);
 326             output.set(0,1, input.m01);
 327             output.set(0,2, input.m02);
 328             output.set(0,3, input.m03);
 329
 330             output.set(1,0, input.m10);
 331             output.set(1,1, input.m11);
 332             output.set(1,2, input.m12);
 333             output.set(1,3, input.m13);
 334
 335             output.set(2,0, input.m20);
 336             output.set(2,1, input.m21);
 337             output.set(2,2, input.m22);
 338             output.set(2,3, input.m23);
 339
 340             return output;
 341         }
 342
 343         geometry::AffineMatrix2D& affineMatrixFromHomMatrix( geometry::AffineMatrix2D&      output,
 344                                                              const ::basegfx::B2DHomMatrix& input)
 345         {
 346             output.m00 = input.get(0,0);
 347             output.m01 = input.get(0,1);
 348             output.m02 = input.get(0,2);
 349             output.m10 = input.get(1,0);
 350             output.m11 = input.get(1,1);
 351             output.m12 = input.get(1,2);
 352
 353             return output;
 354         }
 355
 356         geometry::AffineMatrix3D& affineMatrixFromHomMatrix3D(
 357             geometry::AffineMatrix3D& output,
 358             const ::basegfx::B3DHomMatrix&  input)
 359         {
 360             output.m00 = input.get(0,0);
 361             output.m01 = input.get(0,1);
 362             output.m02 = input.get(0,2);
 363             output.m03 = input.get(0,3);
 364
 365             output.m10 = input.get(1,0);
 366             output.m11 = input.get(1,1);
 367             output.m12 = input.get(1,2);
 368             output.m13 = input.get(1,3);
 369
 370             output.m20 = input.get(2,0);
 371             output.m21 = input.get(2,1);
 372             output.m22 = input.get(2,2);
 373             output.m23 = input.get(2,3);
 374
 375             return output;
 376         }
 377
 378         geometry::RealSize2D size2DFromB2DSize(const ::basegfx::B2DSize& rSize)
 379         {
 380             return geometry::RealSize2D(rSize.getWidth(), rSize.getHeight());
 381         }
 382
 383         geometry::RealPoint2D point2DFromB2DPoint( const ::basegfx::B2DPoint& rPoint )
 384         {
 385             return geometry::RealPoint2D( rPoint.getX(),
 386                                           rPoint.getY() );
 387         }
 388
 389         geometry::RealRectangle2D rectangle2DFromB2DRectangle( const ::basegfx::B2DRange& rRect )
 390         {
 391             return geometry::RealRectangle2D( rRect.getMinX(),
 392                                               rRect.getMinY(),
 393                                               rRect.getMaxX(),
 394                                               rRect.getMaxY() );
 395         }
 396
 397         geometry::RealRectangle3D rectangle3DFromB3DRectangle( const ::basegfx::B3DRange& rRect )
 398         {
 399             return geometry::RealRectangle3D( rRect.getMinX(),
 400                                               rRect.getMinY(),
 401                                               rRect.getMinZ(),
 402                                               rRect.getMaxX(),
 403                                               rRect.getMaxY(),
 404                                               rRect.getMaxZ());
 405         }
 406
 407         ::basegfx::B2DPoint b2DPointFromRealPoint2D( const geometry::RealPoint2D& rPoint )
 408         {
 409             return ::basegfx::B2DPoint( rPoint.X,
 410                                         rPoint.Y );
 411         }
 412
 413         ::basegfx::B2DRange b2DRectangleFromRealRectangle2D( const geometry::RealRectangle2D& rRect )
 414         {
 415             return ::basegfx::B2DRange( rRect.X1,
 416                                         rRect.Y1,
 417                                         rRect.X2,
 418                                         rRect.Y2 );
 419         }
 420
 421         ::basegfx::B3DRange b3DRectangleFromRealRectangle3D( const geometry::RealRectangle3D& rRect )
 422         {
 423             return ::basegfx::B3DRange( rRect.X1,
 424                                         rRect.Y1,
 425                                         rRect.Z1,
 426                                         rRect.X2,
 427                                         rRect.Y2,
 428                                         rRect.Z2);
 429         }
 430
 431         geometry::IntegerSize2D integerSize2DFromB2ISize( const ::basegfx::B2ISize& rSize )
 432         {
 433             return geometry::IntegerSize2D( rSize.getWidth(),
 434                                             rSize.getHeight() );
 435         }
 436
 437         basegfx::B2ISize b2ISizeFromIntegerSize2D( const geometry::IntegerSize2D& rSize )
 438         {
 439             return basegfx::B2ISize(rSize.Width, rSize.Height);
 440         }
 441
 442         ::basegfx::B2IRange b2IRectangleFromIntegerRectangle2D( const geometry::IntegerRectangle2D& rRectangle )
 443         {
 444             return ::basegfx::B2IRange( rRectangle.X1, rRectangle.Y1,
 445                                         rRectangle.X2, rRectangle.Y2 );
 446         }
 447
 448         ::basegfx::B2IRange b2IRectangleFromAwtRectangle( const awt::Rectangle& rRect )
 449         {
 450             return ::basegfx::B2IRange( rRect.X,
 451                                         rRect.Y,
 452                                         rRect.X + rRect.Width,
 453                                         rRect.Y + rRect.Height );
 454         }
 455
 456         ::basegfx::B2IRange b2ISurroundingRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 457         {
 458             return ::basegfx::B2IRange( static_cast<sal_Int32>( floor(rRange.getMinX()) ),
 459                                         static_cast<sal_Int32>( floor(rRange.getMinY()) ),
 460                                         static_cast<sal_Int32>( ceil(rRange.getMaxX()) ),
 461                                         static_cast<sal_Int32>( ceil(rRange.getMaxY()) ) );
 462         }
 463
 464         ::basegfx::B2DRange b2DSurroundingIntegerRangeFromB2DRange( const ::basegfx::B2DRange& rRange )
 465         {
 466             return ::basegfx::B2DRange( floor(rRange.getMinX()),
 467                                         floor(rRange.getMinY()),
 468                                         ceil(rRange.getMaxX()),
 469                                         ceil(rRange.getMaxY()) );
 470         }
 471
 472 } // namespace
 473
 474 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */