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 #include "wx/filename.h"
  30
  31 #include "wx/osx/private.h"
  32
  33 #if wxOSX_USE_COCOA_OR_CARBON
  34     #include <QuickTime/QuickTime.h>
  35 #endif
  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, kUTTypePlainText );
 125         break;
 126
 127     case wxDF_UNICODETEXT:
 128         m_format = (long) CFStringCreateCopy( NULL, kUTTypeUTF16PlainText );
 129         break;
 130
 131     case wxDF_HTML:
 132         m_format = (long) CFStringCreateCopy( NULL, kUTTypeHTML );
 133         break;
 134
 135     case wxDF_BITMAP:
 136         m_format = (long) CFStringCreateCopy( NULL, kUTTypeTIFF );
 137         break;
 138     case wxDF_METAFILE:
 139         m_format = (long) CFStringCreateCopy( NULL, kUTTypePDF );
 140         break;
 141
 142     case wxDF_FILENAME:
 143         m_format = (long) CFStringCreateCopy( NULL, kUTTypeFileURL );
 144         break;
 145
 146     default:
 147        wxFAIL_MSG( wxT("invalid data format") );
 148        break;
 149     }
 150 }
 151
 152 wxString wxDataFormat::GetId() const
 153 {
 154     return wxCFStringRef(wxCFRetain((CFStringRef)m_format)).AsString();
 155 }
 156
 157 void wxDataFormat::SetId( NativeFormat format )
 158 {
 159     if ( m_format != 0 )
 160     {
 161         CFRelease( (CFStringRef) m_format );
 162         m_format = 0;
 163     }
 164     m_format = (NativeFormat) CFStringCreateCopy(NULL, (CFStringRef)format);
 165     if ( UTTypeConformsTo( (CFStringRef)format, kUTTypeHTML ) )
 166     {
 167         m_type = wxDF_HTML;
 168     }
 169     if (  UTTypeConformsTo( (CFStringRef)format, kUTTypeUTF16PlainText ) )
 170     {
 171         m_type = wxDF_UNICODETEXT;
 172     }
 173     else if (  UTTypeConformsTo( (CFStringRef)format,kUTTypeUTF16ExternalPlainText ) )
 174     {
 175         m_type = wxDF_UNICODETEXT;
 176     }
 177     else if (  UTTypeConformsTo( (CFStringRef)format,kUTTypeUTF8PlainText ) )
 178     {
 179         m_type = wxDF_UNICODETEXT;
 180     }
 181     else if ( UTTypeConformsTo( (CFStringRef)format, kUTTypePlainText ) )
 182     {
 183         m_type = wxDF_TEXT;
 184     }
 185     else if (  UTTypeConformsTo( (CFStringRef)format, kUTTypeImage ) )
 186     {
 187         m_type = wxDF_BITMAP;
 188     }
 189     else if (  UTTypeConformsTo( (CFStringRef)format, kUTTypePDF ) )
 190     {
 191         m_type = wxDF_METAFILE;
 192     }
 193     else if (  UTTypeConformsTo( (CFStringRef)format, kUTTypeFileURL ) ||
 194              UTTypeConformsTo( (CFStringRef)format, kPasteboardTypeFileURLPromise))
 195     {
 196         m_type = wxDF_FILENAME;
 197     }
 198     else
 199     {
 200         m_type = wxDF_PRIVATE;
 201         m_id = wxCFStringRef( (CFStringRef) CFRetain((CFStringRef) format )).AsString();
 202     }
 203 }
 204
 205 void wxDataFormat::SetId( const wxString& zId )
 206 {
 207     m_type = wxDF_PRIVATE;
 208     m_id = zId;
 209     if ( m_format != 0 )
 210     {
 211         CFRelease( (CFStringRef) m_format );
 212         m_format = 0;
 213     }
 214     // since it is private, no need to conform to anything ...
 215     m_format = (long) wxCFRetain( (CFStringRef) wxCFStringRef(m_id) );
 216 }
 217
 218 bool wxDataFormat::operator==(const wxDataFormat& format) const
 219 {
 220     if (IsStandard() || format.IsStandard())
 221         return (format.m_type == m_type);
 222     else
 223         return ( UTTypeConformsTo( (CFStringRef) m_format , (CFStringRef) format.m_format ) );
 224 }
 225
 226 //-------------------------------------------------------------------------
 227 // wxDataObject
 228 //-------------------------------------------------------------------------
 229
 230 wxDataObject::wxDataObject()
 231 {
 232 }
 233
 234 bool wxDataObject::IsSupportedFormat( const wxDataFormat& rFormat, Direction vDir ) const
 235 {
 236     size_t nFormatCount = GetFormatCount( vDir );
 237     bool found = false;
 238
 239     if (nFormatCount == 1)
 240     {
 241         found = (rFormat == GetPreferredFormat());
 242     }
 243     else
 244     {
 245         wxDataFormat *pFormats = new wxDataFormat[nFormatCount];
 246         GetAllFormats( pFormats, vDir );
 247
 248         for (size_t n = 0; n < nFormatCount; n++)
 249         {
 250             if (pFormats[n] == rFormat)
 251             {
 252                 found = true;
 253                 break;
 254             }
 255         }
 256
 257         delete [] pFormats;
 258     }
 259
 260     return found;
 261 }
 262
 263 void wxDataObject::AddToPasteboard( void * pb, int itemID )
 264 {
 265     PasteboardRef pasteboard = (PasteboardRef) pb;
 266    // get formats from wxDataObjects
 267     wxDataFormat *array = new wxDataFormat[ GetFormatCount() ];
 268     GetAllFormats( array );
 269
 270     for (size_t i = 0; i < GetFormatCount(); i++)
 271     {
 272         wxDataFormat thisFormat = array[ i ];
 273
 274         // add four bytes at the end for data objs like text that
 275         // have a datasize = strlen but still need a buffer for the
 276         // string including trailing zero
 277
 278         size_t datasize = GetDataSize( thisFormat );
 279         if ( datasize == wxCONV_FAILED && thisFormat.GetType() == wxDF_TEXT)
 280         {
 281             // conversion to local text failed, so we must use unicode
 282             // if wxDF_UNICODETEXT is already on the 'todo' list, skip this iteration
 283             // otherwise force it
 284             size_t j = 0;
 285             for (j = 0; j < GetFormatCount(); j++)
 286             {
 287                 if ( array[j].GetType() == wxDF_UNICODETEXT )
 288                     break;
 289             }
 290             if ( j < GetFormatCount() )
 291                 continue;
 292
 293             thisFormat.SetType(wxDF_UNICODETEXT);
 294             datasize = GetDataSize( thisFormat );
 295         }
 296
 297         size_t sz = datasize + 4;
 298         void* buf = malloc( sz );
 299         if ( buf != NULL )
 300         {
 301             // empty the buffer because in some case GetDataHere does not fill buf
 302             memset( buf, 0, sz );
 303             if ( GetDataHere( thisFormat, buf ) )
 304             {
 305                 int counter = 1 ;
 306                 if ( thisFormat.GetType() == wxDF_FILENAME )
 307                 {
 308                     // the data is D-normalized UTF8 strings of filenames delimited with \n
 309                     char *fname = strtok((char*) buf,"\n");
 310                     while (fname != NULL)
 311                     {
 312                         // translate the filepath into a fileurl and put that into the pasteobard
 313                         CFStringRef path = CFStringCreateWithBytes(NULL,(UInt8*)fname,strlen(fname),kCFStringEncodingUTF8,false);
 314                         CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path , kCFURLPOSIXPathStyle, false);
 315                         CFRelease(path);
 316                         CFDataRef data = CFURLCreateData(NULL,url,kCFStringEncodingUTF8,true);
 317                         CFRelease(url);
 318                         PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) counter,
 319                             (CFStringRef) thisFormat.GetFormatId() , data, kPasteboardFlavorNoFlags);
 320                         CFRelease( data );
 321                         counter++;
 322                         fname = strtok (NULL,"\n");
 323                     }
 324
 325                 }
 326                 else
 327                 {
 328                     CFDataRef data = CFDataCreate( kCFAllocatorDefault, (UInt8*)buf, datasize );
 329                     if ( thisFormat.GetType() == wxDF_TEXT )
 330                          PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) itemID,
 331                             CFSTR("com.apple.traditional-mac-plain-text") , data, kPasteboardFlavorNoFlags);
 332                     else
 333                         PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) itemID,
 334                             (CFStringRef) thisFormat.GetFormatId() , data, kPasteboardFlavorNoFlags);
 335                     CFRelease( data );
 336                 }
 337             }
 338             free( buf );
 339         }
 340     }
 341
 342     delete [] array;
 343 }
 344
 345 bool wxDataObject::IsFormatInPasteboard( void * pb, const wxDataFormat &dataFormat )
 346 {
 347     PasteboardRef pasteboard = (PasteboardRef) pb;
 348     bool hasData = false;
 349     OSStatus err = noErr;
 350     ItemCount itemCount;
 351
 352     // we synchronize here once again, so we don't mind which flags get returned
 353     PasteboardSynchronize( pasteboard );
 354
 355     err = PasteboardGetItemCount( pasteboard, &itemCount );
 356     if ( err == noErr )
 357     {
 358         for( UInt32 itemIndex = 1; itemIndex <= itemCount && hasData == false ; itemIndex++ )
 359         {
 360             PasteboardItemID    itemID;
 361             CFArrayRef          flavorTypeArray;
 362             CFIndex             flavorCount;
 363
 364             err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 365             if ( err != noErr )
 366                 continue;
 367
 368             err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 369             if ( err != noErr )
 370                 continue;
 371
 372             flavorCount = CFArrayGetCount( flavorTypeArray );
 373
 374             for( CFIndex flavorIndex = 0; flavorIndex < flavorCount && hasData == false ; flavorIndex++ )
 375             {
 376                 CFStringRef             flavorType;
 377
 378                 flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 379                                                                      flavorIndex );
 380
 381                 wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 382                 if ( dataFormat == flavorFormat )
 383                     hasData = true;
 384                 else if (  dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT )
 385                     hasData = true;
 386             }
 387             CFRelease (flavorTypeArray);
 388         }
 389     }
 390
 391     return hasData;
 392 }
 393
 394 bool wxDataObject::GetFromPasteboard( void * pb )
 395 {
 396     PasteboardRef pasteboard = (PasteboardRef) pb;
 397     size_t formatcount = GetFormatCount() + 1;
 398     wxDataFormat *array = new wxDataFormat[ formatcount ];
 399     array[0] = GetPreferredFormat();
 400     GetAllFormats( &array[1] );
 401     ItemCount itemCount = 0;
 402     wxString filenamesPassed;
 403     bool transferred = false;
 404     bool pastelocationset = false;
 405
 406     // we synchronize here once again, so we don't mind which flags get returned
 407     PasteboardSynchronize( pasteboard );
 408
 409     OSStatus err = PasteboardGetItemCount( pasteboard, &itemCount );
 410     if ( err == noErr )
 411     {
 412         for (size_t i = 0; !transferred && i < formatcount; i++)
 413         {
 414             // go through the data in our order of preference
 415             wxDataFormat dataFormat = array[ i ];
 416
 417             for( UInt32 itemIndex = 1; itemIndex <= itemCount && transferred == false ; itemIndex++ )
 418             {
 419                 PasteboardItemID    itemID = 0;
 420                 CFArrayRef          flavorTypeArray = NULL;
 421                 CFIndex             flavorCount = 0;
 422
 423                 err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 424                 if ( err != noErr )
 425                     continue;
 426
 427                 err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 428                 if ( err != noErr )
 429                     continue;
 430
 431                 flavorCount = CFArrayGetCount( flavorTypeArray );
 432
 433                 for( CFIndex flavorIndex = 0; !transferred && flavorIndex < flavorCount ; flavorIndex++ )
 434                 {
 435                     CFStringRef             flavorType;
 436                     CFDataRef               flavorData;
 437                     CFIndex                 flavorDataSize;
 438
 439                     flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 440                                                                          flavorIndex );
 441
 442                     wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 443
 444                     if ( dataFormat == flavorFormat )
 445                     {
 446                         if ( UTTypeConformsTo( (CFStringRef)flavorType, kPasteboardTypeFileURLPromise) )
 447                         {
 448                             if ( !pastelocationset )
 449                             {
 450                                 wxString tempdir = wxFileName::GetTempDir() + wxFILE_SEP_PATH + "wxtemp.XXXXXX";
 451                                 char* result = mkdtemp((char*)tempdir.fn_str().data());
 452
 453                                 if (!result)
 454                                     continue;
 455
 456                                 wxCFRef<CFURLRef> dest(CFURLCreateFromFileSystemRepresentation(NULL,(const UInt8*)result,strlen(result),true));
 457                                 PasteboardSetPasteLocation(pasteboard, dest);
 458                                 pastelocationset = true;
 459                            }
 460                         }
 461                         else if ( flavorFormat.GetType() != wxDF_PRIVATE )
 462                         {
 463                             // indicate the expected format for the type, benefiting from native conversions eg utf8 -> utf16
 464                             flavorType = (CFStringRef) wxDataFormat( flavorFormat.GetType()).GetFormatId();
 465                         }
 466
 467                         err = PasteboardCopyItemFlavorData( pasteboard, itemID, flavorType , &flavorData );
 468                         if ( err == noErr )
 469                         {
 470                             flavorDataSize = CFDataGetLength( flavorData );
 471                             if (dataFormat.GetType() == wxDF_FILENAME )
 472                             {
 473                                  // revert the translation and decomposition to arrive at a proper utf8 string again
 474                                 CFURLRef url = CFURLCreateWithBytes( kCFAllocatorDefault, CFDataGetBytePtr( flavorData ), flavorDataSize, kCFStringEncodingUTF8, NULL );
 475                                 CFStringRef cfString = CFURLCopyFileSystemPath( url, kCFURLPOSIXPathStyle );
 476                                 CFRelease( url );
 477                                 CFMutableStringRef cfMutableString = CFStringCreateMutableCopy(NULL, 0, cfString);
 478                                 CFRelease( cfString );
 479                                 CFStringNormalize(cfMutableString,kCFStringNormalizationFormC);
 480                                 wxString path = wxCFStringRef(cfMutableString).AsString();
 481                                 if (!path.empty())
 482                                     filenamesPassed += path + wxT("\n");
 483                             }
 484                             else
 485                             {
 486                                 // because some data implementation expect trailing a trailing NUL, we add some headroom
 487                                 void *buf = malloc( flavorDataSize + 4 );
 488                                 if ( buf )
 489                                 {
 490                                     memset( buf, 0, flavorDataSize + 4 );
 491                                     memcpy( buf, CFDataGetBytePtr( flavorData ), flavorDataSize );
 492
 493                                     if (dataFormat.GetType() == wxDF_TEXT)
 494                                         wxMacConvertNewlines10To13( (char*) buf );
 495                                     SetData( flavorFormat, flavorDataSize, buf );
 496                                     transferred = true;
 497                                     free( buf );
 498                                 }
 499                             }
 500                             CFRelease (flavorData);
 501                         }
 502                     }
 503                     else if ( dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT )
 504                     {
 505                         err = PasteboardCopyItemFlavorData( pasteboard, itemID, flavorType, &flavorData );
 506                         if ( err == noErr )
 507                         {
 508                             flavorDataSize = CFDataGetLength( flavorData );
 509                             void *asciibuf = malloc( flavorDataSize + 1 );
 510                             if ( asciibuf )
 511                             {
 512                                 memset( asciibuf, 0, flavorDataSize + 1 );
 513                                 memcpy( asciibuf, CFDataGetBytePtr( flavorData ), flavorDataSize );
 514                                 CFRelease (flavorData);
 515
 516                                 SetData( wxDF_TEXT, flavorDataSize, asciibuf );
 517                                 transferred = true;
 518                                 free( asciibuf );
 519                             }
 520                             else
 521                                 CFRelease (flavorData);
 522                         }
 523                     }
 524                 }
 525                 CFRelease( flavorTypeArray );
 526             }
 527             if ( !filenamesPassed.empty() )
 528             {
 529                 wxCharBuffer buf = filenamesPassed.fn_str();
 530                 SetData( wxDF_FILENAME, strlen( buf ), (const char*)buf );
 531                 transferred = true;
 532             }
 533         }
 534     }
 535     return transferred;
 536 }
 537
 538 bool wxDataObject::HasDataInPasteboard( void * pb )
 539 {
 540     PasteboardRef pasteboard = (PasteboardRef) pb;
 541     size_t formatcount = GetFormatCount() + 1;
 542     wxDataFormat *array = new wxDataFormat[ formatcount ];
 543     array[0] = GetPreferredFormat();
 544     GetAllFormats( &array[1] );
 545     ItemCount itemCount = 0;
 546     bool hasData = false;
 547
 548     // we synchronize here once again, so we don't mind which flags get returned
 549     PasteboardSynchronize( pasteboard );
 550
 551     OSStatus err = PasteboardGetItemCount( pasteboard, &itemCount );
 552     if ( err == noErr )
 553     {
 554         for (size_t i = 0; !hasData && i < formatcount; i++)
 555         {
 556             // go through the data in our order of preference
 557             wxDataFormat dataFormat = array[ i ];
 558
 559             for( UInt32 itemIndex = 1; itemIndex <= itemCount && hasData == false ; itemIndex++ )
 560             {
 561                 PasteboardItemID    itemID = 0;
 562                 CFArrayRef          flavorTypeArray = NULL;
 563                 CFIndex             flavorCount = 0;
 564
 565                 err = PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID );
 566                 if ( err != noErr )
 567                     continue;
 568
 569                 err = PasteboardCopyItemFlavors( pasteboard, itemID, &flavorTypeArray );
 570                 if ( err != noErr )
 571                     continue;
 572
 573                 flavorCount = CFArrayGetCount( flavorTypeArray );
 574
 575                 for( CFIndex flavorIndex = 0; !hasData && flavorIndex < flavorCount ; flavorIndex++ )
 576                 {
 577                     CFStringRef             flavorType;
 578
 579                     flavorType = (CFStringRef)CFArrayGetValueAtIndex( flavorTypeArray,
 580                                                                          flavorIndex );
 581
 582                     wxDataFormat flavorFormat( (wxDataFormat::NativeFormat) flavorType );
 583
 584                     if ( dataFormat == flavorFormat ||
 585                         (dataFormat.GetType() == wxDF_UNICODETEXT && flavorFormat.GetType() == wxDF_TEXT) )
 586                     {
 587                         hasData = true;
 588                     }
 589                 }
 590                 CFRelease( flavorTypeArray );
 591             }
 592         }
 593     }
 594     return hasData;
 595 }
 596
 597 // ----------------------------------------------------------------------------
 598 // wxTextDataObject
 599 // ----------------------------------------------------------------------------
 600
 601 #if wxUSE_UNICODE
 602 void wxTextDataObject::GetAllFormats(wxDataFormat *formats,
 603                                      wxDataObjectBase::Direction WXUNUSED(dir)) const
 604 {
 605     *formats++ = wxDataFormat( wxDF_TEXT );
 606     *formats = wxDataFormat( wxDF_UNICODETEXT );
 607 }
 608 #endif
 609
 610 // ----------------------------------------------------------------------------
 611 // wxFileDataObject
 612 // ----------------------------------------------------------------------------
 613
 614 void wxFileDataObject::GetFileNames( wxCharBuffer &buf ) const
 615 {
 616     wxString filenames;
 617
 618     for (size_t i = 0; i < m_filenames.GetCount(); i++)
 619     {
 620         filenames += m_filenames[i];
 621         filenames += wxT('\n');
 622     }
 623
 624     buf = filenames.fn_str();
 625 }
 626
 627 bool wxFileDataObject::GetDataHere( void *pBuf ) const
 628 {
 629     if (pBuf == NULL)
 630         return false;
 631
 632     wxCharBuffer buf;
 633     size_t buffLength;
 634
 635     GetFileNames( buf );
 636     buffLength = strlen( buf );
 637     memcpy( pBuf, (const char*)buf, buffLength + 1 );
 638
 639     return true;
 640 }
 641
 642 size_t wxFileDataObject::GetDataSize() const
 643 {
 644     wxCharBuffer buf;
 645     size_t buffLength;
 646
 647     GetFileNames( buf );
 648     buffLength = strlen( buf );
 649     // terminating 0
 650     return buffLength + 1;
 651 }
 652
 653 bool wxFileDataObject::SetData( size_t WXUNUSED(nSize), const void *pBuf )
 654 {
 655     wxString filenames;
 656
 657 #if wxUSE_UNICODE
 658     filenames = wxString( (const char*)pBuf, *wxConvFileName );
 659 #else
 660     filenames = wxString (wxConvLocal.cWC2WX(wxConvFileName->cMB2WC( (const char*)pBuf)));
 661 #endif
 662
 663     m_filenames = wxStringTokenize( filenames, wxT("\n"), wxTOKEN_STRTOK );
 664
 665     return true;
 666 }
 667
 668 void wxFileDataObject::AddFile( const wxString& rFilename )
 669 {
 670     m_filenames.Add( rFilename );
 671 }
 672
 673 // ----------------------------------------------------------------------------
 674 // wxBitmapDataObject
 675 // ----------------------------------------------------------------------------
 676
 677 wxBitmapDataObject::wxBitmapDataObject()
 678 {
 679     Init();
 680 }
 681
 682 wxBitmapDataObject::wxBitmapDataObject( const wxBitmap& rBitmap )
 683 : wxBitmapDataObjectBase( rBitmap )
 684 {
 685     Init();
 686
 687     if (m_bitmap.IsOk())
 688     {
 689         SetBitmap( rBitmap );
 690     }
 691 }
 692
 693 wxBitmapDataObject::~wxBitmapDataObject()
 694 {
 695     Clear();
 696 }
 697
 698 void wxBitmapDataObject::SetBitmap( const wxBitmap& rBitmap )
 699 {
 700     Clear();
 701     wxBitmapDataObjectBase::SetBitmap( rBitmap );
 702     if (m_bitmap.IsOk())
 703     {
 704         CGImageRef cgImageRef = (CGImageRef) m_bitmap.CreateCGImage();
 705
 706         CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
 707         CGImageDestinationRef destination = CGImageDestinationCreateWithData( data , kUTTypeTIFF , 1 , NULL );
 708         if ( destination )
 709         {
 710             CGImageDestinationAddImage( destination, cgImageRef, NULL );
 711             CGImageDestinationFinalize( destination );
 712             CFRelease( destination );
 713         }
 714         m_pictHandle = NewHandle(CFDataGetLength(data));
 715         if ( m_pictHandle )
 716         {
 717             memcpy( *(Handle)m_pictHandle, (const char *)CFDataGetBytePtr(data), CFDataGetLength(data) );
 718         }
 719         CFRelease( data );
 720
 721         CGImageRelease(cgImageRef);
 722     }
 723 }
 724
 725 void wxBitmapDataObject::Init()
 726 {
 727     m_pictHandle = NULL;
 728     m_pictCreated = false;
 729 }
 730
 731 void wxBitmapDataObject::Clear()
 732 {
 733     if (m_pictHandle != NULL)
 734     {
 735         DisposeHandle( (Handle) m_pictHandle );
 736         m_pictHandle = NULL;
 737     }
 738     m_pictCreated = false;
 739 }
 740
 741 bool wxBitmapDataObject::GetDataHere( void *pBuf ) const
 742 {
 743     if (m_pictHandle == NULL)
 744     {
 745         wxFAIL_MSG( wxT("attempt to copy empty bitmap failed") );
 746         return false;
 747     }
 748
 749     if (pBuf == NULL)
 750         return false;
 751
 752     memcpy( pBuf, *(Handle)m_pictHandle, GetHandleSize( (Handle)m_pictHandle ) );
 753
 754     return true;
 755 }
 756
 757 size_t wxBitmapDataObject::GetDataSize() const
 758 {
 759     if (m_pictHandle != NULL)
 760         return GetHandleSize( (Handle)m_pictHandle );
 761     else
 762         return 0;
 763 }
 764
 765 Handle MacCreateDataReferenceHandle(Handle theDataHandle)
 766 {
 767     Handle  dataRef = NULL;
 768     OSErr   err     = noErr;
 769
 770     // Create a data reference handle for our data.
 771     err = PtrToHand( &theDataHandle, &dataRef, sizeof(Handle));
 772
 773     return dataRef;
 774 }
 775
 776 bool wxBitmapDataObject::SetData( size_t nSize, const void *pBuf )
 777 {
 778     Clear();
 779
 780     if ((pBuf == NULL) || (nSize == 0))
 781         return false;
 782
 783     Handle picHandle = NewHandle( nSize );
 784     memcpy( *picHandle, pBuf, nSize );
 785     m_pictHandle = picHandle;
 786     CGImageRef cgImageRef = 0;
 787
 788     CFDataRef data = CFDataCreateWithBytesNoCopy( kCFAllocatorDefault, (const UInt8*) pBuf, nSize, kCFAllocatorNull);
 789     CGImageSourceRef source = CGImageSourceCreateWithData( data, NULL );
 790     if ( source )
 791     {
 792         cgImageRef = CGImageSourceCreateImageAtIndex(source, 0, NULL);
 793         CFRelease( source );
 794     }
 795     CFRelease( data );
 796
 797     if ( cgImageRef )
 798     {
 799         m_bitmap.Create( CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 800         CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 801         // since our context is upside down we dont use CGContextDrawImage
 802         wxMacDrawCGImage( (CGContextRef) m_bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 803         CGImageRelease(cgImageRef);
 804         cgImageRef = NULL;
 805     }
 806
 807     return m_bitmap.IsOk();
 808 }
 809
 810 #endif