cppcanvas/source/mtfrenderer/polypolyaction.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  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
  21 #include <com/sun/star/rendering/XCanvas.hpp>
  22 #include <com/sun/star/rendering/TexturingMode.hpp>
  23
  24 #include <sal/types.h>
  25 #include <vcl/canvastools.hxx>
  26
  27 #include <basegfx/range/b2drectangle.hxx>
  28 #include <basegfx/tools/canvastools.hxx>
  29 #include <basegfx/polygon/b2dpolypolygon.hxx>
  30 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  31 #include <basegfx/matrix/b2dhommatrix.hxx>
  32 #include <canvas/canvastools.hxx>
  33
  34 #include <boost/utility.hpp>
  35
  36 #include "cachedprimitivebase.hxx"
  37 #include "polypolyaction.hxx"
  38 #include "outdevstate.hxx"
  39 #include "mtftools.hxx"
  40
  41
  42 using namespace ::com::sun::star;
  43
  44 namespace cppcanvas
  45 {
  46     namespace internal
  47     {
  48         namespace
  49         {
  50             class PolyPolyAction : public CachedPrimitiveBase
  51             {
  52             public:
  53                 PolyPolyAction( const ::basegfx::B2DPolyPolygon&,
  54                                 const CanvasSharedPtr&,
  55                                 const OutDevState&,
  56                                 bool bFill,
  57                                 bool bStroke );
  58                 PolyPolyAction( const ::basegfx::B2DPolyPolygon&,
  59                                 const CanvasSharedPtr&,
  60                                 const OutDevState&,
  61                                 bool bFill,
  62                                 bool bStroke,
  63                                 int nTransparency );
  64
  65                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
  66                                            const Subset&                  rSubset ) const;
  67
  68                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
  69                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
  70                                                        const Subset&                    rSubset ) const;
  71
  72                 virtual sal_Int32 getActionCount() const;
  73
  74             private:
  75                 using Action::render;
  76                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
  77                                               const ::basegfx::B2DHomMatrix&                 rTransformation ) const;
  78
  79                 const uno::Reference< rendering::XPolyPolygon2D >   mxPolyPoly;
  80                 const ::basegfx::B2DRange                           maBounds;
  81                 const CanvasSharedPtr                               mpCanvas;
  82
  83                 // stroke color is now implicit: the maState.DeviceColor member
  84                 rendering::RenderState                              maState;
  85
  86                 uno::Sequence< double >                             maFillColor;
  87             };
  88
  89             PolyPolyAction::PolyPolyAction( const ::basegfx::B2DPolyPolygon&    rPolyPoly,
  90                                             const CanvasSharedPtr&              rCanvas,
  91                                             const OutDevState&                  rState,
  92                                             bool                                bFill,
  93                                             bool                                bStroke ) :
  94                 CachedPrimitiveBase( rCanvas, false ),
  95                 mxPolyPoly( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), rPolyPoly) ),
  96                 maBounds( ::basegfx::tools::getRange(rPolyPoly) ),
  97                 mpCanvas( rCanvas ),
  98                 maState(),
  99                 maFillColor()
 100             {
 101                 tools::initRenderState(maState,rState);
 102
 103                 if( bFill )
 104                     maFillColor = rState.fillColor;
 105
 106                 if( bStroke )
 107                     maState.DeviceColor = rState.lineColor;
 108             }
 109
 110             PolyPolyAction::PolyPolyAction( const ::basegfx::B2DPolyPolygon&    rPolyPoly,
 111                                             const CanvasSharedPtr&              rCanvas,
 112                                             const OutDevState&                  rState,
 113                                             bool                                bFill,
 114                                             bool                                bStroke,
 115                                             int                                 nTransparency ) :
 116                 CachedPrimitiveBase( rCanvas, false ),
 117                 mxPolyPoly( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), rPolyPoly) ),
 118                 maBounds( ::basegfx::tools::getRange(rPolyPoly) ),
 119                 mpCanvas( rCanvas ),
 120                 maState(),
 121                 maFillColor()
 122             {
 123                 tools::initRenderState(maState,rState);
 124
 125                 if( bFill )
 126                 {
 127                     maFillColor = rState.fillColor;
 128
 129                     if( maFillColor.getLength() < 4 )
 130                         maFillColor.realloc( 4 );
 131
 132                     // TODO(F1): Color management
 133                     // adapt fill color transparency
 134                     maFillColor[3] = 1.0 - nTransparency / 100.0;
 135                 }
 136
 137                 if( bStroke )
 138                 {
 139                     maState.DeviceColor = rState.lineColor;
 140
 141                     if( maState.DeviceColor.getLength() < 4 )
 142                         maState.DeviceColor.realloc( 4 );
 143
 144                     // TODO(F1): Color management
 145                     // adapt fill color transparency
 146                     maState.DeviceColor[3] = 1.0 - nTransparency / 100.0;
 147                 }
 148             }
 149
 150             bool PolyPolyAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 151                                                   const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 152             {
 153                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction::renderPrimitive()" );
 154                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction: 0x" << std::hex << this );
 155
 156                 rendering::RenderState aLocalState( maState );
 157                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 158
 159                 if( maFillColor.getLength() )
 160                 {
 161                     // TODO(E3): Use DBO's finalizer here,
 162                     // fillPolyPolygon() might throw
 163                     const uno::Sequence< double > aTmpColor( aLocalState.DeviceColor );
 164                     aLocalState.DeviceColor = maFillColor;
 165
 166                     rCachedPrimitive = mpCanvas->getUNOCanvas()->fillPolyPolygon( mxPolyPoly,
 167                                                                                   mpCanvas->getViewState(),
 168                                                                                   aLocalState );
 169
 170                     aLocalState.DeviceColor = aTmpColor;
 171                 }
 172
 173                 if( aLocalState.DeviceColor.getLength() )
 174                 {
 175                     rCachedPrimitive = mpCanvas->getUNOCanvas()->drawPolyPolygon( mxPolyPoly,
 176                                                                                   mpCanvas->getViewState(),
 177                                                                                   aLocalState );
 178                 }
 179
 180                 return true;
 181             }
 182
 183             bool PolyPolyAction::renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
 184                                                const Subset&                  rSubset ) const
 185             {
 186                 // TODO(F1): Split up poly-polygon into polygons, or even
 187                 // line segments, when subsets are requested.
 188
 189                 // polygon only contains a single action, fail if subset
 190                 // requests different range
 191                 if( rSubset.mnSubsetBegin != 0 ||
 192                     rSubset.mnSubsetEnd != 1 )
 193                     return false;
 194
 195                 return CachedPrimitiveBase::render( rTransformation );
 196             }
 197
 198             ::basegfx::B2DRange PolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&   rTransformation ) const
 199             {
 200                 rendering::RenderState aLocalState( maState );
 201                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 202
 203                 return tools::calcDevicePixelBounds(
 204                     maBounds,
 205                     mpCanvas->getViewState(),
 206                     aLocalState );
 207             }
 208
 209             ::basegfx::B2DRange PolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
 210                                                            const Subset&                    rSubset ) const
 211             {
 212                 // TODO(F1): Split up poly-polygon into polygons, or even
 213                 // line segments, when subsets are requested.
 214
 215                 // polygon only contains a single action, empty bounds
 216                 // if subset requests different range
 217                 if( rSubset.mnSubsetBegin != 0 ||
 218                     rSubset.mnSubsetEnd != 1 )
 219                     return ::basegfx::B2DRange();
 220
 221                 return getBounds( rTransformation );
 222             }
 223
 224             sal_Int32 PolyPolyAction::getActionCount() const
 225             {
 226                 // TODO(F1): Split up poly-polygon into polygons, or even
 227                 // line segments, when subsets are requested.
 228                 return 1;
 229             }
 230
 231
 232             // -------------------------------------------------------------------------------
 233
 234             class TexturedPolyPolyAction : public CachedPrimitiveBase
 235             {
 236             public:
 237                 TexturedPolyPolyAction( const ::basegfx::B2DPolyPolygon& rPoly,
 238                                         const CanvasSharedPtr&           rCanvas,
 239                                         const OutDevState&               rState,
 240                                         const rendering::Texture&        rTexture );
 241
 242                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
 243                                            const Subset&                  rSubset ) const;
 244
 245                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
 246                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
 247                                                        const Subset&                    rSubset ) const;
 248
 249                 virtual sal_Int32 getActionCount() const;
 250
 251             private:
 252                 using Action::render;
 253                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 254                                               const ::basegfx::B2DHomMatrix&                 rTransformation ) const;
 255
 256                 const uno::Reference< rendering::XPolyPolygon2D >   mxPolyPoly;
 257                 const ::basegfx::B2DRectangle                       maBounds;
 258                 const CanvasSharedPtr                               mpCanvas;
 259
 260                 // stroke color is now implicit: the maState.DeviceColor member
 261                 rendering::RenderState                              maState;
 262                 const rendering::Texture                            maTexture;
 263             };
 264
 265             TexturedPolyPolyAction::TexturedPolyPolyAction( const ::basegfx::B2DPolyPolygon& rPolyPoly,
 266                                                             const CanvasSharedPtr&           rCanvas,
 267                                                             const OutDevState&               rState,
 268                                                             const rendering::Texture&        rTexture ) :
 269                 CachedPrimitiveBase( rCanvas, true ),
 270                 mxPolyPoly( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), rPolyPoly) ),
 271                 maBounds( ::basegfx::tools::getRange(rPolyPoly) ),
 272                 mpCanvas( rCanvas ),
 273                 maState(),
 274                 maTexture( rTexture )
 275             {
 276                 tools::initRenderState(maState,rState);
 277             }
 278
 279             bool TexturedPolyPolyAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 280                                                           const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 281             {
 282                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction::renderPrimitive()" );
 283                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction: 0x" << std::hex << this );
 284
 285                 rendering::RenderState aLocalState( maState );
 286                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 287
 288                 uno::Sequence< rendering::Texture > aSeq(1);
 289                 aSeq[0] = maTexture;
 290
 291                 rCachedPrimitive = mpCanvas->getUNOCanvas()->fillTexturedPolyPolygon( mxPolyPoly,
 292                                                                                       mpCanvas->getViewState(),
 293                                                                                       aLocalState,
 294                                                                                       aSeq );
 295                 return true;
 296             }
 297
 298             bool TexturedPolyPolyAction::renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
 299                                                        const Subset&                  rSubset ) const
 300             {
 301                 // TODO(F1): Split up poly-polygon into polygons, or even
 302                 // line segments, when subsets are requested.
 303
 304                 // polygon only contains a single action, fail if subset
 305                 // requests different range
 306                 if( rSubset.mnSubsetBegin != 0 ||
 307                     rSubset.mnSubsetEnd != 1 )
 308                     return false;
 309
 310                 return CachedPrimitiveBase::render( rTransformation );
 311             }
 312
 313             ::basegfx::B2DRange TexturedPolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&   rTransformation ) const
 314             {
 315                 rendering::RenderState aLocalState( maState );
 316                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 317
 318                 return tools::calcDevicePixelBounds(
 319                     maBounds,
 320                     mpCanvas->getViewState(),
 321                     aLocalState );
 322             }
 323
 324             ::basegfx::B2DRange TexturedPolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
 325                                                                    const Subset&                    rSubset ) const
 326             {
 327                 // TODO(F1): Split up poly-polygon into polygons, or even
 328                 // line segments, when subsets are requested.
 329
 330                 // polygon only contains a single action, empty bounds
 331                 // if subset requests different range
 332                 if( rSubset.mnSubsetBegin != 0 ||
 333                     rSubset.mnSubsetEnd != 1 )
 334                     return ::basegfx::B2DRange();
 335
 336                 return getBounds( rTransformation );
 337             }
 338
 339             sal_Int32 TexturedPolyPolyAction::getActionCount() const
 340             {
 341                 // TODO(F1): Split up poly-polygon into polygons, or even
 342                 // line segments, when subsets are requested.
 343                 return 1;
 344             }
 345
 346             // -------------------------------------------------------------------------------
 347
 348             class StrokedPolyPolyAction : public CachedPrimitiveBase
 349             {
 350             public:
 351                 StrokedPolyPolyAction( const ::basegfx::B2DPolyPolygon&     rPoly,
 352                                        const CanvasSharedPtr&               rCanvas,
 353                                        const OutDevState&                   rState,
 354                                        const rendering::StrokeAttributes&   rStrokeAttributes );
 355
 356                 virtual bool renderSubset( const ::basegfx::B2DHomMatrix& rTransformation,
 357                                            const Subset&                  rSubset ) const;
 358
 359                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix& rTransformation ) const;
 360                 virtual ::basegfx::B2DRange getBounds( const ::basegfx::B2DHomMatrix&   rTransformation,
 361                                                        const Subset&                    rSubset ) const;
 362
 363                 virtual sal_Int32 getActionCount() const;
 364
 365             private:
 366                 using Action::render;
 367                 virtual bool renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 368                                               const ::basegfx::B2DHomMatrix&                 rTransformation ) const;
 369
 370                 const uno::Reference< rendering::XPolyPolygon2D >   mxPolyPoly;
 371                 const ::basegfx::B2DRectangle                       maBounds;
 372                 const CanvasSharedPtr                               mpCanvas;
 373                 rendering::RenderState                              maState;
 374                 const rendering::StrokeAttributes                   maStrokeAttributes;
 375             };
 376
 377             StrokedPolyPolyAction::StrokedPolyPolyAction( const ::basegfx::B2DPolyPolygon&      rPolyPoly,
 378                                                           const CanvasSharedPtr&                rCanvas,
 379                                                           const OutDevState&                    rState,
 380                                                           const rendering::StrokeAttributes&    rStrokeAttributes ) :
 381                 CachedPrimitiveBase( rCanvas, false ),
 382                 mxPolyPoly( ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon( rCanvas->getUNOCanvas()->getDevice(), rPolyPoly) ),
 383                 maBounds( ::basegfx::tools::getRange(rPolyPoly) ),
 384                 mpCanvas( rCanvas ),
 385                 maState(),
 386                 maStrokeAttributes( rStrokeAttributes )
 387             {
 388                 tools::initRenderState(maState,rState);
 389                 maState.DeviceColor = rState.lineColor;
 390             }
 391
 392             bool StrokedPolyPolyAction::renderPrimitive( uno::Reference< rendering::XCachedPrimitive >& rCachedPrimitive,
 393                                                          const ::basegfx::B2DHomMatrix&                 rTransformation ) const
 394             {
 395                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction::renderPrimitive()" );
 396                 SAL_INFO( "cppcanvas.emf", "::cppcanvas::internal::PolyPolyAction: 0x" << std::hex << this );
 397
 398                 rendering::RenderState aLocalState( maState );
 399                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 400
 401                 rCachedPrimitive = mpCanvas->getUNOCanvas()->strokePolyPolygon( mxPolyPoly,
 402                                                                                 mpCanvas->getViewState(),
 403                                                                                 aLocalState,
 404                                                                                 maStrokeAttributes );
 405                 return true;
 406             }
 407
 408             bool StrokedPolyPolyAction::renderSubset( const ::basegfx::B2DHomMatrix&  rTransformation,
 409                                                       const Subset&                   rSubset ) const
 410             {
 411                 // TODO(F1): Split up poly-polygon into polygons, or even
 412                 // line segments, when subsets are requested.
 413
 414                 // polygon only contains a single action, fail if subset
 415                 // requests different range
 416                 if( rSubset.mnSubsetBegin != 0 ||
 417                     rSubset.mnSubsetEnd != 1 )
 418                     return false;
 419
 420                 return CachedPrimitiveBase::render( rTransformation );
 421             }
 422
 423             ::basegfx::B2DRange StrokedPolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&    rTransformation ) const
 424             {
 425                 rendering::RenderState aLocalState( maState );
 426                 ::canvas::tools::prependToRenderState(aLocalState, rTransformation);
 427
 428                 return tools::calcDevicePixelBounds(
 429                     maBounds,
 430                     mpCanvas->getViewState(),
 431                     aLocalState );
 432             }
 433
 434             ::basegfx::B2DRange StrokedPolyPolyAction::getBounds( const ::basegfx::B2DHomMatrix&    rTransformation,
 435                                                                   const Subset&                 rSubset ) const
 436             {
 437                 // TODO(F1): Split up poly-polygon into polygons, or even
 438                 // line segments, when subsets are requested.
 439
 440                 // polygon only contains a single action, empty bounds
 441                 // if subset requests different range
 442                 if( rSubset.mnSubsetBegin != 0 ||
 443                     rSubset.mnSubsetEnd != 1 )
 444                     return ::basegfx::B2DRange();
 445
 446                 return getBounds( rTransformation );
 447             }
 448
 449             sal_Int32 StrokedPolyPolyAction::getActionCount() const
 450             {
 451                 // TODO(F1): Split up poly-polygon into polygons, or even
 452                 // line segments, when subsets are requested.
 453                 return 1;
 454             }
 455         }
 456
 457         ActionSharedPtr PolyPolyActionFactory::createPolyPolyAction( const ::basegfx::B2DPolyPolygon& rPoly,
 458                                                                      const CanvasSharedPtr&           rCanvas,
 459                                                                      const OutDevState&               rState    )
 460         {
 461             OSL_ENSURE( rState.isLineColorSet || rState.isFillColorSet,
 462                         "PolyPolyActionFactory::createPolyPolyAction() with empty line and fill color" );
 463             return ActionSharedPtr( new PolyPolyAction( rPoly, rCanvas, rState,
 464                                                         rState.isFillColorSet,
 465                                                         rState.isLineColorSet ) );
 466         }
 467
 468         ActionSharedPtr PolyPolyActionFactory::createPolyPolyAction( const ::basegfx::B2DPolyPolygon&   rPoly,
 469                                                                      const CanvasSharedPtr&             rCanvas,
 470                                                                      const OutDevState&                 rState,
 471                                                                      const rendering::Texture&          rTexture )
 472         {
 473             return ActionSharedPtr( new TexturedPolyPolyAction( rPoly, rCanvas, rState, rTexture ) );
 474         }
 475
 476         ActionSharedPtr PolyPolyActionFactory::createLinePolyPolyAction( const ::basegfx::B2DPolyPolygon& rPoly,
 477                                                                          const CanvasSharedPtr&           rCanvas,
 478                                                                          const OutDevState&               rState )
 479         {
 480             OSL_ENSURE( rState.isLineColorSet,
 481                         "PolyPolyActionFactory::createLinePolyPolyAction() called with empty line color" );
 482
 483             return ActionSharedPtr( new PolyPolyAction( rPoly, rCanvas, rState,
 484                                                         false,
 485                                                         rState.isLineColorSet ) );
 486         }
 487
 488         ActionSharedPtr PolyPolyActionFactory::createPolyPolyAction( const ::basegfx::B2DPolyPolygon&   rPoly,
 489                                                                      const CanvasSharedPtr&             rCanvas,
 490                                                                      const OutDevState&                 rState,
 491                                                                      const rendering::StrokeAttributes& rStrokeAttributes )
 492         {
 493             OSL_ENSURE( rState.isLineColorSet,
 494                         "PolyPolyActionFactory::createPolyPolyAction() for strokes called with empty line color" );
 495             return ActionSharedPtr( new StrokedPolyPolyAction( rPoly, rCanvas, rState, rStrokeAttributes ) );
 496         }
 497
 498         ActionSharedPtr PolyPolyActionFactory::createPolyPolyAction( const ::basegfx::B2DPolyPolygon& rPoly,
 499                                                                      const CanvasSharedPtr&           rCanvas,
 500                                                                      const OutDevState&               rState,
 501                                                                      int                              nTransparency     )
 502         {
 503             OSL_ENSURE( rState.isLineColorSet || rState.isFillColorSet,
 504                         "PolyPolyActionFactory::createPolyPolyAction() with empty line and fill color" );
 505             return ActionSharedPtr( new PolyPolyAction( rPoly, rCanvas, rState,
 506                                                         rState.isFillColorSet,
 507                                                         rState.isLineColorSet,
 508                                                         nTransparency ) );
 509         }
 510
 511     }
 512 }
 513
 514 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */