sfx2/source/doc/graphhelp.cxx

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  28
  29
  30 #ifdef WNT
  31
  32 #undef WB_LEFT
  33 #undef WB_RIGHT
  34
  35 #define UINT64 USE_WIN_UINT64
  36 #define INT64 USE_WIN_INT64
  37 #define UINT32 USE_WIN_UINT32
  38 #define INT32 USE_WIN_INT32
  39
  40 #include <tools/presys.h>
  41 #if defined _MSC_VER
  42 #pragma warning(push, 1)
  43 #endif
  44 #include <windows.h>
  45 #if defined _MSC_VER
  46 #pragma warning(pop)
  47 #endif
  48 #include <tools/postsys.h>
  49
  50 #undef UINT64
  51 #undef INT64
  52 #undef UINT32
  53 #undef INT32
  54
  55 #endif
  56 #include <com/sun/star/uno/Exception.hpp>
  57 #include <com/sun/star/datatransfer/XTransferable.hpp>
  58 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  59 #include <com/sun/star/graphic/GraphicProvider.hpp>
  60 #include <com/sun/star/graphic/XGraphicProvider.hpp>
  61 #include <com/sun/star/graphic/XGraphic.hpp>
  62 #include <com/sun/star/io/XStream.hpp>
  63
  64
  65 #include <osl/thread.h>
  66 #include <vcl/gdimtf.hxx>
  67 #include <vcl/graph.hxx>
  68 #include <vcl/cvtgrf.hxx>
  69 #include <vcl/outdev.hxx>
  70 #include <vcl/virdev.hxx>
  71 #include <vcl/bitmapex.hxx>
  72 #include <vcl/salbtype.hxx>
  73
  74 #include <tools/stream.hxx>
  75 #include <unotools/tempfile.hxx>
  76 #include <unotools/ucbstreamhelper.hxx>
  77 #include <unotools/streamwrap.hxx>
  78 #include <comphelper/processfactory.hxx>
  79
  80
  81 #include "sfx2/sfxresid.hxx"
  82 #include "graphhelp.hxx"
  83 #include "doc.hrc"
  84
  85 using namespace ::com::sun::star;
  86
  87 #define THUMBNAIL_RESOLUTION 256
  88
  89 //---------------------------------------------------------------
  90 // static
  91 SvMemoryStream* GraphicHelper::getFormatStrFromGDI_Impl( const GDIMetaFile* pGDIMeta, sal_uInt32 nFormat )
  92 {
  93     SvMemoryStream* pResult = NULL;
  94     if ( pGDIMeta )
  95     {
  96         SvMemoryStream* pStream = new SvMemoryStream( 65535, 65535 );
  97         if ( pStream )
  98         {
  99             Graphic aGraph( *pGDIMeta );
 100             if ( GraphicConverter::Export( *pStream, aGraph, nFormat ) == 0 )
 101                 pResult = pStream;
 102             else
 103                 delete pStream;
 104         }
 105     }
 106
 107     return pResult;
 108 }
 109
 110 //---------------------------------------------------------------
 111 // static
 112 void* GraphicHelper::getEnhMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta )
 113 {
 114     (void)pGDIMeta;  // unused
 115     void* pResult = NULL;
 116
 117 #ifdef WNT
 118     if ( pGDIMeta )
 119     {
 120         String aStr = ::rtl::OUString(".emf");
 121         ::utl::TempFile aTempFile( ::rtl::OUString(),
 122                                    &aStr,
 123                                    NULL,
 124                                    sal_False );
 125
 126         ::rtl::OUString aMetaFile = aTempFile.GetFileName();
 127         ::rtl::OUString aMetaURL = aTempFile.GetURL();
 128         ::rtl::OString aWinFile = ::rtl::OUStringToOString( aMetaFile, osl_getThreadTextEncoding() );
 129
 130         SvStream* pStream = ::utl::UcbStreamHelper::CreateStream( aMetaURL, STREAM_STD_READWRITE );
 131         if ( pStream )
 132         {
 133             Graphic aGraph( *pGDIMeta );
 134             sal_Bool bFailed = (sal_Bool)GraphicConverter::Export( *pStream, aGraph, CVT_EMF );
 135             pStream->Flush();
 136             delete pStream;
 137
 138             if ( !bFailed )
 139                 pResult = GetEnhMetaFileA( aWinFile.getStr() );
 140         }
 141     }
 142 #endif
 143
 144     return pResult;
 145 }
 146
 147 //---------------------------------------------------------------
 148 // static
 149 void* GraphicHelper::getWinMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta, const Size& aMetaSize )
 150 {
 151     (void)pGDIMeta;  // unused
 152     (void)aMetaSize; // unused
 153     void* pResult = NULL;
 154
 155 #ifdef WNT
 156     if ( pGDIMeta )
 157     {
 158         SvMemoryStream* pStream = new SvMemoryStream( 65535, 65535 );
 159         if ( pStream )
 160         {
 161             Graphic aGraph( *pGDIMeta );
 162             sal_Bool bFailed = (sal_Bool)GraphicConverter::Export( *pStream, aGraph, CVT_WMF );
 163             pStream->Flush();
 164             if ( !bFailed )
 165             {
 166                 sal_Int32 nLength = pStream->Seek( STREAM_SEEK_TO_END );
 167                 if ( nLength > 22 )
 168                 {
 169                     HMETAFILE hMeta = SetMetaFileBitsEx( nLength - 22,
 170                                     ( reinterpret_cast< const sal_uChar*>( pStream->GetData() ) ) + 22 );
 171
 172                     if ( hMeta )
 173                     {
 174                         HGLOBAL hMemory = GlobalAlloc( GMEM_DDESHARE | GMEM_MOVEABLE, sizeof( METAFILEPICT ) );
 175
 176                         if ( hMemory )
 177                         {
 178                                METAFILEPICT* pMF = (METAFILEPICT*)GlobalLock( hMemory );
 179
 180                                pMF->hMF = hMeta;
 181                                pMF->mm = MM_ANISOTROPIC;
 182
 183                             MapMode aMetaMode = pGDIMeta->GetPrefMapMode();
 184                             MapMode aWinMode( MAP_100TH_MM );
 185
 186                             if ( aWinMode == pGDIMeta->GetPrefMapMode() )
 187                             {
 188                                 pMF->xExt = aMetaSize.Width();
 189                                 pMF->yExt = aMetaSize.Height();
 190                             }
 191                             else
 192                             {
 193                                 Size aWinSize = OutputDevice::LogicToLogic( Size( aMetaSize.Width(), aMetaSize.Height() ),
 194                                                                             pGDIMeta->GetPrefMapMode(),
 195                                                                             aWinMode );
 196                                 pMF->xExt = aWinSize.Width();
 197                                 pMF->yExt = aWinSize.Height();
 198                             }
 199
 200                             GlobalUnlock( hMemory );
 201                             pResult = (void*)hMemory;
 202                         }
 203                         else
 204                                DeleteMetaFile( hMeta );
 205                     }
 206                 }
 207             }
 208
 209             delete pStream;
 210         }
 211     }
 212
 213 #endif
 214
 215
 216     return pResult;
 217 }
 218
 219 //---------------------------------------------------------------
 220 // static
 221 sal_Bool GraphicHelper::supportsMetaFileHandle_Impl()
 222 {
 223 #ifdef WNT
 224     return sal_True;
 225 #else
 226     return sal_False;
 227 #endif
 228 }
 229
 230 //---------------------------------------------------------------
 231 // static
 232 sal_Bool GraphicHelper::mergeBitmaps_Impl( const BitmapEx& rBmpEx, const BitmapEx& rOverlay,
 233                    const Rectangle& rOverlayRect, BitmapEx& rReturn )
 234 {
 235     // the implementation is provided by KA
 236
 237     Point           aNullPt;
 238     Rectangle       aBmpRect( aNullPt, rBmpEx.GetSizePixel() );
 239     VirtualDevice   aVDev;
 240
 241     if( !rReturn.IsEmpty() )
 242         rReturn.SetEmpty();
 243
 244     if( !rBmpEx.IsEmpty() && aVDev.SetOutputSizePixel( aBmpRect.GetSize() ) )
 245     {
 246         Rectangle aOverlayRect( rOverlayRect );
 247
 248         aOverlayRect.Intersection( aBmpRect );
 249
 250         if( rOverlay.IsEmpty() || rOverlayRect.IsEmpty() )
 251             rReturn = rBmpEx;
 252         else
 253         {
 254             aVDev.DrawBitmap( aNullPt, aVDev.GetOutputSizePixel(), rBmpEx.GetBitmap() );
 255             aVDev.DrawBitmapEx( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), rOverlay );
 256
 257             Bitmap aBmp( aVDev.GetBitmap( aNullPt, aVDev.GetOutputSizePixel() ) );
 258             aBmp.Convert( BMP_CONVERSION_24BIT );
 259
 260             if( !rBmpEx.IsTransparent() )
 261                 rReturn = aBmp;
 262             else
 263             {
 264                 aVDev.DrawBitmap( aNullPt, aVDev.GetOutputSizePixel(), rBmpEx.GetMask() );
 265                 Bitmap aOverlayMergeBmp( aVDev.GetBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize() ) );
 266
 267                 if( rOverlay.IsTransparent() )
 268                     aVDev.DrawBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), rOverlay.GetMask() );
 269                 else
 270                 {
 271                     aVDev.SetLineColor( COL_BLACK );
 272                     aVDev.SetFillColor( COL_BLACK );
 273                     aVDev.DrawRect( aOverlayRect);
 274                 }
 275
 276                 aOverlayMergeBmp.CombineSimple( aVDev.GetBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize() ), BMP_COMBINE_AND );
 277                 aVDev.DrawBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), aOverlayMergeBmp );
 278                 rReturn = BitmapEx( aBmp, aVDev.GetBitmap( aNullPt, aVDev.GetOutputSizePixel() ) );
 279             }
 280         }
 281     }
 282
 283     return !rReturn.IsEmpty();
 284 }
 285
 286
 287 //---------------------------------------------------------------
 288 // static
 289 sal_Bool GraphicHelper::createThumb_Impl( const GDIMetaFile& rMtf,
 290                        sal_uInt32 nMaximumExtent,
 291                        BitmapEx& rBmpEx,
 292                        const BitmapEx* pOverlay,
 293                        const Rectangle* pOverlayRect )
 294 {
 295     // the implementation is provided by KA
 296
 297     // initialization seems to be complicated but is used to avoid rounding errors
 298     VirtualDevice   aVDev;
 299     const Point     aNullPt;
 300     const Point     aTLPix( aVDev.LogicToPixel( aNullPt, rMtf.GetPrefMapMode() ) );
 301     const Point     aBRPix( aVDev.LogicToPixel( Point( rMtf.GetPrefSize().Width() - 1, rMtf.GetPrefSize().Height() - 1 ), rMtf.GetPrefMapMode() ) );
 302     Size            aDrawSize( aVDev.LogicToPixel( rMtf.GetPrefSize(), rMtf.GetPrefMapMode() ) );
 303     Size            aSizePix( labs( aBRPix.X() - aTLPix.X() ) + 1, labs( aBRPix.Y() - aTLPix.Y() ) + 1 );
 304     Point           aPosPix;
 305
 306     if ( !rBmpEx.IsEmpty() )
 307         rBmpEx.SetEmpty();
 308
 309     // determine size that has the same aspect ratio as image size and
 310     // fits into the rectangle determined by nMaximumExtent
 311     if ( aSizePix.Width() && aSizePix.Height() &&
 312             ( sal::static_int_cast<sal_uInt32>(aSizePix.Width()) > nMaximumExtent ||
 313               sal::static_int_cast<sal_uInt32>(aSizePix.Height()) > nMaximumExtent ) )
 314     {
 315         const Size  aOldSizePix( aSizePix );
 316         double      fWH = static_cast< double >( aSizePix.Width() ) / aSizePix.Height();
 317
 318         if ( fWH <= 1.0 )
 319         {
 320             aSizePix.Width() = FRound( nMaximumExtent * fWH );
 321             aSizePix.Height() = nMaximumExtent;
 322         }
 323         else
 324         {
 325             aSizePix.Width() = nMaximumExtent;
 326             aSizePix.Height() = FRound(  nMaximumExtent / fWH );
 327         }
 328
 329         aDrawSize.Width() = FRound( ( static_cast< double >( aDrawSize.Width() ) * aSizePix.Width() ) / aOldSizePix.Width() );
 330         aDrawSize.Height() = FRound( ( static_cast< double >( aDrawSize.Height() ) * aSizePix.Height() ) / aOldSizePix.Height() );
 331     }
 332
 333     Size        aFullSize;
 334     Point       aBackPosPix;
 335     Rectangle   aOverlayRect;
 336
 337     // calculate addigtional positions and sizes if an overlay image is used
 338     if (  pOverlay )
 339     {
 340         aFullSize = Size( nMaximumExtent, nMaximumExtent );
 341         aOverlayRect = Rectangle( aNullPt, aFullSize  );
 342
 343         aOverlayRect.Intersection( pOverlayRect ? *pOverlayRect : Rectangle( aNullPt, pOverlay->GetSizePixel() ) );
 344
 345         if ( !aOverlayRect.IsEmpty() )
 346             aBackPosPix = Point( ( nMaximumExtent - aSizePix.Width() ) >> 1, ( nMaximumExtent - aSizePix.Height() ) >> 1 );
 347         else
 348             pOverlay = NULL;
 349     }
 350     else
 351     {
 352         aFullSize = aSizePix;
 353         pOverlay = NULL;
 354     }
 355
 356     // draw image(s) into VDev and get resulting image
 357     if ( aVDev.SetOutputSizePixel( aFullSize ) )
 358     {
 359         // draw metafile into VDev
 360         const_cast< GDIMetaFile& >( rMtf ).WindStart();
 361         const_cast< GDIMetaFile& >( rMtf ).Play( &aVDev, aBackPosPix, aDrawSize );
 362
 363         // draw overlay if neccessary
 364         if ( pOverlay )
 365             aVDev.DrawBitmapEx( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), *pOverlay );
 366
 367         // get paint bitmap
 368         Bitmap aBmp( aVDev.GetBitmap( aNullPt, aVDev.GetOutputSizePixel() ) );
 369
 370         // assure that we have a true color image
 371         if ( aBmp.GetBitCount() != 24 )
 372             aBmp.Convert( BMP_CONVERSION_24BIT );
 373
 374         rBmpEx = BitmapEx( aBmp );
 375     }
 376
 377     return !rBmpEx.IsEmpty();
 378 }
 379
 380 //---------------------------------------------------------------
 381 // static
 382 sal_Bool GraphicHelper::getThumbnailFormatFromGDI_Impl( GDIMetaFile* pMetaFile,
 383                                                         sal_Bool bSigned,
 384                                                         const uno::Reference< io::XStream >& xStream )
 385 {
 386     sal_Bool bResult = sal_False;
 387     SvStream* pStream = NULL;
 388
 389     if ( xStream.is() )
 390         pStream = ::utl::UcbStreamHelper::CreateStream( xStream );
 391
 392     if ( pMetaFile && pStream && !pStream->GetError() )
 393     {
 394         BitmapEx aResultBitmap;
 395         BitmapEx* pSignatureBitmap = NULL;
 396
 397         if ( bSigned )
 398             pSignatureBitmap = new BitmapEx( SfxResId( BMP_SIGNATURE ) );
 399
 400         bResult = createThumb_Impl( *pMetaFile,
 401                                        THUMBNAIL_RESOLUTION,
 402                                        aResultBitmap,
 403                                     pSignatureBitmap );
 404         if ( bResult )
 405             bResult = ( !aResultBitmap.IsEmpty()
 406                         && GraphicConverter::Export( *pStream, aResultBitmap, CVT_PNG ) == 0
 407                         && ( pStream->Flush(), !pStream->GetError() ) );
 408
 409         if ( pSignatureBitmap )
 410             delete pSignatureBitmap;
 411
 412         delete pStream;
 413     }
 414
 415     return bResult;
 416 }
 417
 418 //---------------------------------------------------------------
 419 // static
 420 sal_Bool GraphicHelper::getSignedThumbnailFormatFromBitmap_Impl( const BitmapEx& aBitmap,
 421                                                                  const uno::Reference< io::XStream >& xStream )
 422 {
 423     sal_Bool bResult = sal_False;
 424     SvStream* pStream = NULL;
 425
 426     if ( xStream.is() )
 427         pStream = ::utl::UcbStreamHelper::CreateStream( xStream );
 428
 429     if ( pStream && !pStream->GetError() )
 430     {
 431         BitmapEx aResultBitmap;
 432         BitmapEx aSignatureBitmap( SfxResId( BMP_SIGNATURE ) );
 433
 434         bResult = mergeBitmaps_Impl( aBitmap,
 435                                     aSignatureBitmap,
 436                                     Rectangle( Point(), aBitmap.GetSizePixel() ),
 437                                     aResultBitmap );
 438
 439         if ( bResult )
 440         {
 441             bResult = ( !aResultBitmap.IsEmpty()
 442                         && GraphicConverter::Export( *pStream, aResultBitmap, CVT_PNG ) == 0
 443                         && ( pStream->Flush(), !pStream->GetError() ) );
 444         }
 445
 446         delete pStream;
 447     }
 448
 449     return bResult;
 450 }
 451
 452 //---------------------------------------------------------------
 453 // static
 454 sal_Bool GraphicHelper::getThumbnailReplacement_Impl( sal_Int32 nResID, const uno::Reference< io::XStream >& xStream )
 455 {
 456     sal_Bool bResult = sal_False;
 457     if ( nResID && xStream.is() )
 458     {
 459         uno::Reference< uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
 460         try
 461         {
 462             uno::Reference< graphic::XGraphicProvider > xGraphProvider(graphic::GraphicProvider::create(xContext));
 463             ::rtl::OUString aURL("private:resource/sfx/bitmapex/");
 464             aURL += ::rtl::OUString::valueOf( nResID );
 465
 466             uno::Sequence< beans::PropertyValue > aMediaProps( 1 );
 467             aMediaProps[0].Name = "URL";
 468             aMediaProps[0].Value <<= aURL;
 469
 470             uno::Reference< graphic::XGraphic > xGraphic = xGraphProvider->queryGraphic( aMediaProps );
 471             if ( xGraphic.is() )
 472             {
 473                 uno::Sequence< beans::PropertyValue > aStoreProps( 2 );
 474                 aStoreProps[0].Name = "OutputStream";
 475                 aStoreProps[0].Value <<= xStream;
 476                 aStoreProps[1].Name = "MimeType";
 477                 aStoreProps[1].Value <<= ::rtl::OUString("image/png");
 478
 479                 xGraphProvider->storeGraphic( xGraphic, aStoreProps );
 480                 bResult = sal_True;
 481             }
 482         }
 483         catch(const uno::Exception&)
 484         {
 485         }
 486     }
 487
 488     return bResult;
 489 }
 490
 491 //---------------------------------------------------------------
 492 // static
 493 sal_uInt16 GraphicHelper::getThumbnailReplacementIDByFactoryName_Impl( const ::rtl::OUString& aFactoryShortName, sal_Bool /*bIsTemplate*/ )
 494 {
 495     sal_uInt16 nResult = 0;
 496
 497     if ( aFactoryShortName == "scalc" )
 498     {
 499         nResult = BMP_128X128_CALC_DOC;
 500     }
 501     else if ( aFactoryShortName == "sdraw" )
 502     {
 503         nResult = BMP_128X128_DRAW_DOC;
 504     }
 505     else if ( aFactoryShortName == "simpress" )
 506     {
 507         nResult = BMP_128X128_IMPRESS_DOC;
 508     }
 509     else if ( aFactoryShortName == "smath" )
 510     {
 511         nResult = BMP_128X128_MATH_DOC;
 512     }
 513     else if ( aFactoryShortName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "swriter" ) ) || aFactoryShortName.compareToAscii( "swriter/", 8 ) == 0 )
 514     {
 515         nResult = BMP_128X128_WRITER_DOC;
 516     }
 517
 518     return nResult;
 519 }
 520
 521 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */