src/osx/carbon/dataobj.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/dataobj.cpp
   3 // Purpose:     implementation of wxDataObject class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     10/21/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Stefan Csomor
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #if wxUSE_DATAOBJ
  16
  17 #include "wx/dataobj.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/intl.h"
  21     #include "wx/log.h"
  22     #include "wx/dcmemory.h"
  23     #include "wx/image.h"
  24 #endif
  25
  26 #include "wx/mstream.h"
  27 #include "wx/metafile.h"
  28 #include "wx/tokenzr.h"
  29
  30 #include "wx/osx/private.h"
  31
  32 #if wxOSX_USE_COCOA_OR_CARBON
  33     #include <QuickTime/QuickTime.h>
  34 #endif
  35
  36
  37 // ----------------------------------------------------------------------------
  38 // wxDataFormat
  39 // ----------------------------------------------------------------------------
  40
  41 wxDataFormat::wxDataFormat()
  42 {
  43     m_type = wxDF_INVALID;
  44     m_format = 0;
  45 }
  46
  47 wxDataFormat::wxDataFormat( wxDataFormatId vType )
  48 {
  49     m_format = 0;
  50     m_type = wxDF_INVALID;
  51     SetType( vType );
  52 }
  53
  54 wxDataFormat::wxDataFormat( const wxChar *zId )
  55 {
  56     m_format = 0;
  57     m_type = wxDF_INVALID;
  58     SetId( zId );
  59 }
  60
  61 wxDataFormat::wxDataFormat( const wxString& rId )
  62 {
  63     m_format = 0;
  64     m_type = wxDF_INVALID;
  65     SetId( rId );
  66 }
  67
  68 wxDataFormat::wxDataFormat(const wxDataFormat& rFormat)
  69 {
  70     if ( rFormat.m_format )
  71         m_format = (NativeFormat) CFStringCreateCopy(NULL, (CFStringRef)rFormat.m_format);
  72     else
  73         m_format = 0;
  74     m_type = rFormat.m_type;
  75     m_id = rFormat.m_id;
  76 }
  77
  78 wxDataFormat::wxDataFormat( NativeFormat vFormat )
  79 {
  80     m_format = 0;
  81     m_type = wxDF_INVALID;
  82     SetId( vFormat );
  83 }
  84
  85 wxDataFormat::~wxDataFormat()
  86 {
  87     if ( m_format != 0 )
  88     {
  89         CFRelease( (CFStringRef) m_format );
  90         m_format = 0;
  91     }
  92 }
  93
  94 // in order to be correct for 10.3 we restrict to the available types there
  95 // http://developer.apple.com/qa/qa2005/qa1406.html
  96 // TODO : Use UTCoreTypes.h constants once we support 10.4+ only
  97
  98 wxDataFormat& wxDataFormat::operator=(const wxDataFormat& rFormat)
  99 {
 100     if ( m_format != 0 )
 101     {
 102         CFRelease( (CFStringRef) m_format );
 103         m_format = 0;
 104     }
 105     if ( rFormat.m_format )
 106         m_format = (NativeFormat) CFStringCreateCopy(NULL, (CFStringRef)rFormat.m_format);
 107     m_type = rFormat.m_type;
 108     m_id = rFormat.m_id;
 109     return *this;
 110 }
 111
 112 void wxDataFormat::SetType( wxDataFormatId dataType )
 113 {
 114     m_type = dataType;
 115     if ( m_format != 0 )
 116     {
 117         CFRelease( (CFStringRef) m_format );
 118         m_format = 0;
 119     }
 120
 121     switch (m_type)
 122     {
 123     case wxDF_TEXT:
 124         m_format = (long) CFStringCreateCopy( NULL, CFSTR("public.plain-text") );
 125         break;
 126
 127     case wxDF_UNICODETEXT:
 128         m_format = (long) CFStringCreateCopy( NULL, CFSTR("public.utf16-plain-text") );
 129         break;
 130
 131     case wxDF_BITMAP:
 132         m_format = (long) CFStringCreateCopy( NULL, CFSTR("public.tiff") );
 133         break;
 134     case wxDF_METAFILE:
 135         m_format = (long) CFStringCreateCopy( NULL, CFSTR("com.adobe.pdf") );
 136         break;
 137
 138     case wxDF_FILENAME:
 139         m_format = (long) CFStringCreateCopy( NULL, CFSTR("public.file-url") );
 140         break;
 141
 142     default:
 143        wxFAIL_MSG( wxT("invalid data format") );
 144        break;
 145     }
 146 }
 147
 148 wxString wxDataFormat::GetId() const
 149 {
 150     return wxCFStringRef(wxCFRetain((CFStringRef)m_format)).AsString();
 151 }
 152
 153 void wxDataFormat::SetId( NativeFormat format )
 154 {
 155     if ( m_format != 0 )
 156     {
 157         CFRelease( (CFStringRef) m_format );
 158         m_format = 0;
 159     }
 160     m_format = (NativeFormat) CFStringCreateCopy(NULL, (CFStringRef)format);
 161     if (  UTTypeConformsTo( (CFStringRef)format, CFSTR("public.utf16-plain-text") )  )
 162     {
 163         m_type = wxDF_UNICODETEXT;
 164     }
 165     else if (  UTTypeConformsTo( (CFStringRef)format, CFSTR("public.utf16-external-plain-text") )  )
 166     {
 167         m_type = wxDF_UNICODETEXT;
 168     }
 169     else if ( UTTypeConformsTo( (CFStringRef)format, CFSTR("public.plain-text") ) )
 170     {
 171         m_type = wxDF_TEXT;
 172     }
 173     else if (  UTTypeConformsTo( (CFStringRef)format, CFSTR("public.tiff") )  )
 174     {
 175         m_type = wxDF_BITMAP;
 176     }
 177     else if (  UTTypeConformsTo( (CFStringRef)format, CFSTR("com.adobe.pdf") )  )
 178     {
 179         m_type = wxDF_METAFILE;
 180     }
 181     else if (  UTTypeConformsTo( (CFStringRef)format, CFSTR("public.file-url") )  )
 182     {
 183         m_type = wxDF_FILENAME;
 184     }
 185     else
 186     {
 187         m_type = wxDF_PRIVATE;
 188         m_id = wxCFStringRef( (CFStringRef) CFRetain((CFStringRef) format )).AsString();
 189     }
 190 }
 191
 192 void wxDataFormat::SetId( const wxString& zId )
 193 {
 194     m_type = wxDF_PRIVATE;
 195     m_id = zId;
 196     if ( m_format != 0 )
 197     {
 198         CFRelease( (CFStringRef) m_format );
 199         m_format = 0;
 200     }
 201     // since it is private, no need to conform to anything ...
 202     m_format = (long) wxCFRetain( (CFStringRef) wxCFStringRef(m_id) );
 203 }
 204
 205 bool wxDataFormat::operator==(const wxDataFormat& format) const
 206 {
 207     if (IsStandard() || format.IsStandard())
 208         return (format.m_type == m_type);
 209     else
 210         return ( UTTypeConformsTo( (CFStringRef) m_format , (CFStringRef) format.m_format ) );
 211 }
 212
 213 //-------------------------------------------------------------------------
 214 // wxDataObject
 215 //-------------------------------------------------------------------------
 216
 217 wxDataObject::wxDataObject()
 218 {
 219 }
 220
 221 bool wxDataObject::IsSupportedFormat( const wxDataFormat& rFormat, Direction vDir ) const
 222 {
 223     size_t nFormatCount = GetFormatCount( vDir );
 224     bool found = false;
 225
 226     if (nFormatCount == 1)
 227     {
 228         found = (rFormat == GetPreferredFormat());
 229     }
 230     else
 231     {
 232         wxDataFormat *pFormats = new wxDataFormat[nFormatCount];
 233         GetAllFormats( pFormats, vDir );
 234
 235         for (size_t n = 0; n < nFormatCount; n++)
 236         {
 237             if (pFormats[n] == rFormat)
 238             {
 239                 found = true;
 240                 break;
 241             }
 242         }
 243
 244         delete [] pFormats;
 245     }
 246
 247     return found;
 248 }
 249
 250 void wxDataObject::AddToPasteboard( void * pb, int itemID )
 251 {
 252     PasteboardRef pasteboard = (PasteboardRef) pb;
 253    // get formats from wxDataObjects
 254     wxDataFormat *array = new wxDataFormat[ GetFormatCount() ];
 255     GetAllFormats( array );
 256
 257     for (size_t i = 0; i < GetFormatCount(); i++)
 258     {
 259         wxDataFormat thisFormat = array[ i ];
 260
 261         // add four bytes at the end for data objs like text that
 262         // have a datasize = strlen but still need a buffer for the
 263         // string including trailing zero
 264
 265         size_t datasize = GetDataSize( thisFormat );
 266         size_t sz = datasize + 4;
 267         void* buf = malloc( sz );
 268         if ( buf != NULL )
 269         {
 270             // empty the buffer because in some case GetDataHere does not fill buf
 271             memset( buf, 0, sz );
 272             if ( GetDataHere( array[ i ], buf ) )
 273             {
 274                 int counter = 1 ;
 275                 if ( thisFormat.GetType() == wxDF_FILENAME )
 276                 {
 277                     // the data is D-normalized UTF8 strings of filenames delimited with \n
 278                     char *fname = strtok((char*) buf,"\n");
 279                     while (fname != NULL)
 280                     {
 281                         // translate the filepath into a fileurl and put that into the pasteobard
 282                         CFStringRef path = CFStringCreateWithBytes(NULL,(UInt8*)fname,strlen(fname),kCFStringEncodingUTF8,false);
 283                         CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path , kCFURLPOSIXPathStyle, false);
 284                         CFRelease(path);
 285                         CFDataRef data = CFURLCreateData(NULL,url,kCFStringEncodingUTF8,true);
 286                         CFRelease(url);
 287                         PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) counter,
 288                             (CFStringRef) thisFormat.GetFormatId() , data, kPasteboardFlavorNoFlags);
 289                         CFRelease( data );
 290                         counter++;
 291                         fname = strtok (NULL,"\n");
 292                     }
 293
 294                 }
 295                 else
 296                 {
 297                     CFDataRef data = CFDataCreate( kCFAllocatorDefault, (UInt8*)buf, datasize );
 298                     if ( thisFormat.GetType() == wxDF_TEXT )
 299                          PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) itemID,
 300                             CFSTR("com.apple.traditional-mac-plain-text") , data, kPasteboardFlavorNoFlags);
 301                     else
 302                         PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) itemID,
 303                             (CFStringRef) thisFormat.GetFormatId() , data, kPasteboardFlavorNoFlags);
 304                     CFRelease( data );
 305                 }
 306             }
 307             free( buf );
 308         }
 309     }
 310
 311     delete [] array;
 312 }
 313
 314 bool wxDataObject::IsFormatInPasteboard( void * pb, const wxDataFormat &dataFormat )
 315 {
 316     PasteboardRef pasteboard = (PasteboardRef) pb;
 317     bool hasData = false;
 318     OSStatus err = noErr;
 319     ItemCount itemCount;
 320
 321     // we synchronize here once again, so we don't mind which flags get returned
 322     PasteboardSynchronize( pasteboard );
 323
 324     err = PasteboardGetItemCount( pasteboard, &itemCount );
 325     if ( err == noErr )
 326     {
 327         for( UInt32 itemIndex = 1; itemIndex <= itemCount && hasData == false ; itemIndex++ )
 328         {
 329             PasteboardItemID    itemID;
 330             CFArrayRef          flavorTypeArray;
 331             CFIndex             flavorCount;
 332
 333             err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 334             if ( err != noErr )
 335                 continue;
 336
 337             err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 338             if ( err != noErr )
 339                 continue;
 340
 341             flavorCount = CFArrayGetCount( flavorTypeArray );
 342
 343             for( CFIndex flavorIndex = 0; flavorIndex < flavorCount && hasData == false ; flavorIndex++ )
 344             {
 345                 CFStringRef             flavorType;
 346
 347                 flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 348                                                                      flavorIndex );
 349
 350                 wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 351                 if ( dataFormat == flavorFormat )
 352                     hasData = true;
 353                 else if (  dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT )
 354                     hasData = true;
 355             }
 356             CFRelease (flavorTypeArray);
 357         }
 358     }
 359
 360     return hasData;
 361 }
 362
 363 bool wxDataObject::GetFromPasteboard( void * pb )
 364 {
 365     PasteboardRef pasteboard = (PasteboardRef) pb;
 366     size_t formatcount = GetFormatCount() + 1;
 367     wxDataFormat *array = new wxDataFormat[ formatcount ];
 368     array[0] = GetPreferredFormat();
 369     GetAllFormats( &array[1] );
 370     ItemCount itemCount = 0;
 371     wxString filenamesPassed;
 372     bool transferred = false;
 373
 374     // we synchronize here once again, so we don't mind which flags get returned
 375     PasteboardSynchronize( pasteboard );
 376
 377     OSStatus err = PasteboardGetItemCount( pasteboard, &itemCount );
 378     if ( err == noErr )
 379     {
 380         for (size_t i = 0; !transferred && i < formatcount; i++)
 381         {
 382             // go through the data in our order of preference
 383             wxDataFormat dataFormat = array[ i ];
 384
 385             for( UInt32 itemIndex = 1; itemIndex <= itemCount && transferred == false ; itemIndex++ )
 386             {
 387                 PasteboardItemID    itemID = 0;
 388                 CFArrayRef          flavorTypeArray = NULL;
 389                 CFIndex             flavorCount = 0;
 390
 391                 err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 392                 if ( err != noErr )
 393                     continue;
 394
 395                 err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 396                 if ( err != noErr )
 397                     continue;
 398
 399                 flavorCount = CFArrayGetCount( flavorTypeArray );
 400
 401                 for( CFIndex flavorIndex = 0; !transferred && flavorIndex < flavorCount ; flavorIndex++ )
 402                 {
 403                     CFStringRef             flavorType;
 404                     CFDataRef               flavorData;
 405                     CFIndex                 flavorDataSize;
 406
 407                     flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 408                                                                          flavorIndex );
 409
 410                     // avoid utf8 being treated closer to plain-text than unicode by forcing a conversion
 411                     if ( UTTypeConformsTo(flavorType, CFSTR("public.utf8-plain-text") ) )
 412                     {
 413                         flavorType = CFSTR("public.utf16-plain-text");
 414                     }
 415                     wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 416
 417                     if ( dataFormat == flavorFormat )
 418                     {
 419                         err = PasteboardCopyItemFlavorData( pasteboard, itemID, flavorType , &flavorData );
 420                         if ( err == noErr )
 421                         {
 422                             flavorDataSize = CFDataGetLength( flavorData );
 423                             if (dataFormat.GetType() == wxDF_FILENAME )
 424                             {
 425                                 // revert the translation and decomposition to arrive at a proper utf8 string again
 426                                 CFURLRef url = CFURLCreateWithBytes( kCFAllocatorDefault, CFDataGetBytePtr( flavorData ), flavorDataSize, kCFStringEncodingUTF8, NULL );
 427                                 CFStringRef cfString = CFURLCopyFileSystemPath( url, kCFURLPOSIXPathStyle );
 428                                 CFRelease( url );
 429                                 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
 430                                 CFRelease( cfString );
 431                                 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 432                                 wxString path = wxCFStringRef(cfMutableString).AsString();
 433                                 if (!path.empty())
 434                                     filenamesPassed += path + wxT("\n");
 435                             }
 436                             else
 437                             {
 438                                 // because some data implementation expect trailing a trailing NUL, we add some headroom
 439                                 void *buf = malloc( flavorDataSize + 4 );
 440                                 if ( buf )
 441                                 {
 442                                     memset( buf, 0, flavorDataSize + 4 );
 443                                     memcpy( buf, CFDataGetBytePtr( flavorData ), flavorDataSize );
 444
 445                                     if (dataFormat.GetType() == wxDF_TEXT)
 446                                         wxMacConvertNewlines10To13( (char*) buf );
 447                                     SetData( flavorFormat, flavorDataSize, buf );
 448                                     transferred = true;
 449                                     free( buf );
 450                                 }
 451                             }
 452                             CFRelease (flavorData);
 453                         }
 454                     }
 455                     else if ( dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT )
 456                     {
 457                         err = PasteboardCopyItemFlavorData( pasteboard, itemID, flavorType, &flavorData );
 458                         if ( err == noErr )
 459                         {
 460                             flavorDataSize = CFDataGetLength( flavorData );
 461                             void *asciibuf = malloc( flavorDataSize + 1 );
 462                             if ( asciibuf )
 463                             {
 464                                 memset( asciibuf, 0, flavorDataSize + 1 );
 465                                 memcpy( asciibuf, CFDataGetBytePtr( flavorData ), flavorDataSize );
 466                                 CFRelease (flavorData);
 467
 468                                 SetData( wxDF_TEXT, flavorDataSize, asciibuf );
 469                                 transferred = true;
 470                                 free( asciibuf );
 471                             }
 472                             else
 473                                 CFRelease (flavorData);
 474                         }
 475                     }
 476                 }
 477                 CFRelease( flavorTypeArray );
 478             }
 479             if ( !filenamesPassed.empty() )
 480             {
 481                 wxCharBuffer buf = filenamesPassed.fn_str();
 482                 SetData( wxDF_FILENAME, strlen( buf ), (const char*)buf );
 483                 transferred = true;
 484             }
 485         }
 486     }
 487     return transferred;
 488 }
 489
 490 bool wxDataObject::HasDataInPasteboard( void * pb )
 491 {
 492     PasteboardRef pasteboard = (PasteboardRef) pb;
 493     size_t formatcount = GetFormatCount() + 1;
 494     wxDataFormat *array = new wxDataFormat[ formatcount ];
 495     array[0] = GetPreferredFormat();
 496     GetAllFormats( &array[1] );
 497     ItemCount itemCount = 0;
 498     bool hasData = false;
 499
 500     // we synchronize here once again, so we don't mind which flags get returned
 501     PasteboardSynchronize( pasteboard );
 502
 503     OSStatus err = PasteboardGetItemCount( pasteboard, &itemCount );
 504     if ( err == noErr )
 505     {
 506         for (size_t i = 0; !hasData && i < formatcount; i++)
 507         {
 508             // go through the data in our order of preference
 509             wxDataFormat dataFormat = array[ i ];
 510
 511             for( UInt32 itemIndex = 1; itemIndex <= itemCount && hasData == false ; itemIndex++ )
 512             {
 513                 PasteboardItemID    itemID = 0;
 514                 CFArrayRef          flavorTypeArray = NULL;
 515                 CFIndex             flavorCount = 0;
 516
 517                 err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 518                 if ( err != noErr )
 519                     continue;
 520
 521                 err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 522                 if ( err != noErr )
 523                     continue;
 524
 525                 flavorCount = CFArrayGetCount( flavorTypeArray );
 526
 527                 for( CFIndex flavorIndex = 0; !hasData && flavorIndex < flavorCount ; flavorIndex++ )
 528                 {
 529                     CFStringRef             flavorType;
 530
 531                     flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 532                                                                          flavorIndex );
 533
 534                     wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 535
 536                     if ( dataFormat == flavorFormat ||
 537                         dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT )
 538                     {
 539                         hasData = true;
 540                     }
 541                 }
 542                 CFRelease( flavorTypeArray );
 543             }
 544         }
 545     }
 546     return hasData;
 547 }
 548
 549 // ----------------------------------------------------------------------------
 550 // wxTextDataObject
 551 // ----------------------------------------------------------------------------
 552
 553 #if wxUSE_UNICODE
 554 void wxTextDataObject::GetAllFormats(wxDataFormat *formats,
 555                                      wxDataObjectBase::Direction WXUNUSED(dir)) const
 556 {
 557     *formats++ = wxDataFormat( wxDF_TEXT );
 558     *formats = wxDataFormat( wxDF_UNICODETEXT );
 559 }
 560 #endif
 561
 562 // ----------------------------------------------------------------------------
 563 // wxFileDataObject
 564 // ----------------------------------------------------------------------------
 565
 566 void wxFileDataObject::GetFileNames( wxCharBuffer &buf ) const
 567 {
 568     wxString filenames;
 569
 570     for (size_t i = 0; i < m_filenames.GetCount(); i++)
 571     {
 572         filenames += m_filenames[i];
 573         filenames += wxT('\n');
 574     }
 575
 576     buf = filenames.fn_str();
 577 }
 578
 579 bool wxFileDataObject::GetDataHere( void *pBuf ) const
 580 {
 581     if (pBuf == NULL)
 582         return false;
 583
 584     wxCharBuffer buf;
 585     size_t buffLength;
 586
 587     GetFileNames( buf );
 588     buffLength = strlen( buf );
 589     memcpy( pBuf, (const char*)buf, buffLength + 1 );
 590
 591     return true;
 592 }
 593
 594 size_t wxFileDataObject::GetDataSize() const
 595 {
 596     wxCharBuffer buf;
 597     size_t buffLength;
 598
 599     GetFileNames( buf );
 600     buffLength = strlen( buf );
 601     // terminating 0
 602     return buffLength + 1;
 603 }
 604
 605 bool wxFileDataObject::SetData( size_t WXUNUSED(nSize), const void *pBuf )
 606 {
 607     wxString filenames;
 608
 609 #if wxUSE_UNICODE
 610     filenames = wxString( (const char*)pBuf, *wxConvFileName );
 611 #else
 612     filenames = wxString (wxConvLocal.cWC2WX(wxConvFileName->cMB2WC( (const char*)pBuf)));
 613 #endif
 614
 615     m_filenames = wxStringTokenize( filenames, wxT("\n"), wxTOKEN_STRTOK );
 616
 617     return true;
 618 }
 619
 620 void wxFileDataObject::AddFile( const wxString& rFilename )
 621 {
 622     m_filenames.Add( rFilename );
 623 }
 624
 625 // ----------------------------------------------------------------------------
 626 // wxBitmapDataObject
 627 // ----------------------------------------------------------------------------
 628
 629 wxBitmapDataObject::wxBitmapDataObject()
 630 {
 631     Init();
 632 }
 633
 634 wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& rBitmap )
 635 : wxBitmapDataObjectBase( rBitmap )
 636 {
 637     Init();
 638
 639     if (m_bitmap.Ok())
 640     {
 641         SetBitmap( rBitmap );
 642     }
 643 }
 644
 645 wxBitmapDataObject::~wxBitmapDataObject()
 646 {
 647     Clear();
 648 }
 649
 650 void wxBitmapDataObject::SetBitmap( const wxBitmap& rBitmap )
 651 {
 652     Clear();
 653     wxBitmapDataObjectBase::SetBitmap( rBitmap );
 654     if (m_bitmap.Ok())
 655     {
 656         CGImageRef cgImageRef = (CGImageRef) m_bitmap.CreateCGImage();
 657
 658         CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
 659         CGImageDestinationRef destination = CGImageDestinationCreateWithData( data , kUTTypeTIFF , 1 , NULL );
 660         if ( destination )
 661         {
 662             CGImageDestinationAddImage( destination, cgImageRef, NULL );
 663             CGImageDestinationFinalize( destination );
 664             CFRelease( destination );
 665         }
 666         m_pictHandle = NewHandle(CFDataGetLength(data));
 667         if ( m_pictHandle )
 668         {
 669             memcpy( *(Handle)m_pictHandle, (const char *)CFDataGetBytePtr(data), CFDataGetLength(data) );
 670         }
 671         CFRelease( data );
 672
 673         CGImageRelease(cgImageRef);
 674     }
 675 }
 676
 677 void wxBitmapDataObject::Init()
 678 {
 679     m_pictHandle = NULL;
 680     m_pictCreated = false;
 681 }
 682
 683 void wxBitmapDataObject::Clear()
 684 {
 685     if (m_pictHandle != NULL)
 686     {
 687         DisposeHandle( (Handle) m_pictHandle );
 688         m_pictHandle = NULL;
 689     }
 690     m_pictCreated = false;
 691 }
 692
 693 bool wxBitmapDataObject::GetDataHere( void *pBuf ) const
 694 {
 695     if (m_pictHandle == NULL)
 696     {
 697         wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") );
 698         return false;
 699     }
 700
 701     if (pBuf == NULL)
 702         return false;
 703
 704     memcpy( pBuf, *(Handle)m_pictHandle, GetHandleSize( (Handle)m_pictHandle ) );
 705
 706     return true;
 707 }
 708
 709 size_t wxBitmapDataObject::GetDataSize() const
 710 {
 711     if (m_pictHandle != NULL)
 712         return GetHandleSize( (Handle)m_pictHandle );
 713     else
 714         return 0;
 715 }
 716
 717 Handle MacCreateDataReferenceHandle(Handle theDataHandle)
 718 {
 719     Handle  dataRef = NULL;
 720     OSErr   err     = noErr;
 721
 722     // Create a data reference handle for our data.
 723     err = PtrToHand( &theDataHandle, &dataRef, sizeof(Handle));
 724
 725     return dataRef;
 726 }
 727
 728 bool wxBitmapDataObject::SetData( size_t nSize, const void *pBuf )
 729 {
 730     Clear();
 731
 732     if ((pBuf == NULL) || (nSize == 0))
 733         return false;
 734
 735     Handle picHandle = NewHandle( nSize );
 736     memcpy( *picHandle, pBuf, nSize );
 737     m_pictHandle = picHandle;
 738     CGImageRef cgImageRef = 0;
 739
 740     CFDataRef data = CFDataCreateWithBytesNoCopy( kCFAllocatorDefault, (const UInt8*) pBuf, nSize, kCFAllocatorNull);
 741     CGImageSourceRef source = CGImageSourceCreateWithData( data, NULL );
 742     if ( source )
 743     {
 744         cgImageRef = CGImageSourceCreateImageAtIndex(source, 0, NULL);
 745     }
 746     CFRelease( source );
 747     CFRelease( data );
 748
 749     if ( cgImageRef )
 750     {
 751         m_bitmap.Create( CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 752         CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 753         // since our context is upside down we dont use CGContextDrawImage
 754         wxMacDrawCGImage( (CGContextRef) m_bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 755         CGImageRelease(cgImageRef);
 756         cgImageRef = NULL;
 757     }
 758
 759     return m_bitmap.Ok();
 760 }
 761
 762 #endif