src/msw/ole/dataobj.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/ole/dataobj.cpp
   3 // Purpose:     implementation of wx[I]DataObject class
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     10.05.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #if defined(__BORLANDC__)
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/intl.h"
  29     #include "wx/log.h"
  30     #include "wx/utils.h"
  31     #include "wx/wxcrtvararg.h"
  32 #endif
  33
  34 #include "wx/dataobj.h"
  35
  36 #if wxUSE_OLE && defined(__WIN32__) && !defined(__GNUWIN32_OLD__)
  37
  38 #include "wx/msw/private.h"         // includes <windows.h>
  39
  40 #ifdef __WXWINCE__
  41 #include <winreg.h>
  42 #endif
  43
  44 // for some compilers, the entire ole2.h must be included, not only oleauto.h
  45 #if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__) || defined(__WXWINCE__)
  46   #include <ole2.h>
  47 #endif
  48
  49 #include <oleauto.h>
  50 #include <shlobj.h>
  51
  52 #include "wx/msw/ole/oleutils.h"
  53
  54 #include "wx/msw/dib.h"
  55
  56 #ifndef CFSTR_SHELLURL
  57 #define CFSTR_SHELLURL wxT("UniformResourceLocator")
  58 #endif
  59
  60 // ----------------------------------------------------------------------------
  61 // functions
  62 // ----------------------------------------------------------------------------
  63
  64 #if wxDEBUG_LEVEL
  65     static const wxChar *GetTymedName(DWORD tymed);
  66 #else // !wxDEBUG_LEVEL
  67     #define GetTymedName(tymed) wxEmptyString
  68 #endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
  69
  70 // ----------------------------------------------------------------------------
  71 // wxIEnumFORMATETC interface implementation
  72 // ----------------------------------------------------------------------------
  73
  74 class wxIEnumFORMATETC : public IEnumFORMATETC
  75 {
  76 public:
  77     wxIEnumFORMATETC(const wxDataFormat* formats, ULONG nCount);
  78     virtual ~wxIEnumFORMATETC() { delete [] m_formats; }
  79
  80     // IEnumFORMATETC
  81     STDMETHODIMP Next(ULONG celt, FORMATETC *rgelt, ULONG *pceltFetched);
  82     STDMETHODIMP Skip(ULONG celt);
  83     STDMETHODIMP Reset();
  84     STDMETHODIMP Clone(IEnumFORMATETC **ppenum);
  85
  86     DECLARE_IUNKNOWN_METHODS;
  87
  88 private:
  89     CLIPFORMAT *m_formats;  // formats we can provide data in
  90     ULONG       m_nCount,   // number of formats we support
  91                 m_nCurrent; // current enum position
  92
  93     wxDECLARE_NO_COPY_CLASS(wxIEnumFORMATETC);
  94 };
  95
  96 // ----------------------------------------------------------------------------
  97 // wxIDataObject implementation of IDataObject interface
  98 // ----------------------------------------------------------------------------
  99
 100 class wxIDataObject : public IDataObject
 101 {
 102 public:
 103     wxIDataObject(wxDataObject *pDataObject);
 104     virtual ~wxIDataObject();
 105
 106     // normally, wxDataObject controls our lifetime (i.e. we're deleted when it
 107     // is), but in some cases, the situation is reversed, that is we delete it
 108     // when this object is deleted - setting this flag enables such logic
 109     void SetDeleteFlag() { m_mustDelete = true; }
 110
 111     // IDataObject
 112     STDMETHODIMP GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium);
 113     STDMETHODIMP GetDataHere(FORMATETC *pformatetc, STGMEDIUM *pmedium);
 114     STDMETHODIMP QueryGetData(FORMATETC *pformatetc);
 115     STDMETHODIMP GetCanonicalFormatEtc(FORMATETC *In, FORMATETC *pOut);
 116     STDMETHODIMP SetData(FORMATETC *pfetc, STGMEDIUM *pmedium, BOOL fRelease);
 117     STDMETHODIMP EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppenumFEtc);
 118     STDMETHODIMP DAdvise(FORMATETC *pfetc, DWORD ad, IAdviseSink *p, DWORD *pdw);
 119     STDMETHODIMP DUnadvise(DWORD dwConnection);
 120     STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppenumAdvise);
 121
 122     DECLARE_IUNKNOWN_METHODS;
 123
 124 private:
 125     wxDataObject *m_pDataObject;      // pointer to C++ class we belong to
 126
 127     bool m_mustDelete;
 128
 129     wxDECLARE_NO_COPY_CLASS(wxIDataObject);
 130 };
 131
 132 // ============================================================================
 133 // implementation
 134 // ============================================================================
 135
 136 // ----------------------------------------------------------------------------
 137 // wxDataFormat
 138 // ----------------------------------------------------------------------------
 139
 140 void wxDataFormat::SetId(const wxString& format)
 141 {
 142     m_format = (wxDataFormat::NativeFormat)::RegisterClipboardFormat(format.wx_str());
 143     if ( !m_format )
 144     {
 145         wxLogError(_("Couldn't register clipboard format '%s'."), format);
 146     }
 147 }
 148
 149 wxString wxDataFormat::GetId() const
 150 {
 151     static const int max = 256;
 152
 153     wxString s;
 154
 155     wxCHECK_MSG( !IsStandard(), s,
 156                  wxT("name of predefined format cannot be retrieved") );
 157
 158     int len = ::GetClipboardFormatName(m_format, wxStringBuffer(s, max), max);
 159
 160     if ( !len )
 161     {
 162         wxLogError(_("The clipboard format '%d' doesn't exist."), m_format);
 163         return wxEmptyString;
 164     }
 165
 166     return s;
 167 }
 168
 169 // ----------------------------------------------------------------------------
 170 // wxIEnumFORMATETC
 171 // ----------------------------------------------------------------------------
 172
 173 BEGIN_IID_TABLE(wxIEnumFORMATETC)
 174     ADD_IID(Unknown)
 175     ADD_IID(EnumFORMATETC)
 176 END_IID_TABLE;
 177
 178 IMPLEMENT_IUNKNOWN_METHODS(wxIEnumFORMATETC)
 179
 180 wxIEnumFORMATETC::wxIEnumFORMATETC(const wxDataFormat *formats, ULONG nCount)
 181 {
 182     m_nCurrent = 0;
 183     m_nCount = nCount;
 184     m_formats = new CLIPFORMAT[nCount];
 185     for ( ULONG n = 0; n < nCount; n++ ) {
 186         m_formats[n] = formats[n].GetFormatId();
 187     }
 188 }
 189
 190 STDMETHODIMP wxIEnumFORMATETC::Next(ULONG      celt,
 191                                     FORMATETC *rgelt,
 192                                     ULONG     *pceltFetched)
 193 {
 194     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Next"));
 195
 196     ULONG numFetched = 0;
 197     while (m_nCurrent < m_nCount && numFetched < celt) {
 198         FORMATETC format;
 199         format.cfFormat = m_formats[m_nCurrent++];
 200         format.ptd      = NULL;
 201         format.dwAspect = DVASPECT_CONTENT;
 202         format.lindex   = -1;
 203         format.tymed    = TYMED_HGLOBAL;
 204
 205         *rgelt++ = format;
 206         numFetched++;
 207     }
 208
 209     if (pceltFetched)
 210         *pceltFetched = numFetched;
 211
 212     return numFetched == celt ? S_OK : S_FALSE;
 213 }
 214
 215 STDMETHODIMP wxIEnumFORMATETC::Skip(ULONG celt)
 216 {
 217     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Skip"));
 218
 219     m_nCurrent += celt;
 220     if ( m_nCurrent < m_nCount )
 221         return S_OK;
 222
 223     // no, can't skip this many elements
 224     m_nCurrent -= celt;
 225
 226     return S_FALSE;
 227 }
 228
 229 STDMETHODIMP wxIEnumFORMATETC::Reset()
 230 {
 231     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Reset"));
 232
 233     m_nCurrent = 0;
 234
 235     return S_OK;
 236 }
 237
 238 STDMETHODIMP wxIEnumFORMATETC::Clone(IEnumFORMATETC **ppenum)
 239 {
 240     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Clone"));
 241
 242     // unfortunately, we can't reuse the code in ctor - types are different
 243     wxIEnumFORMATETC *pNew = new wxIEnumFORMATETC(NULL, 0);
 244     pNew->m_nCount = m_nCount;
 245     pNew->m_formats = new CLIPFORMAT[m_nCount];
 246     for ( ULONG n = 0; n < m_nCount; n++ ) {
 247         pNew->m_formats[n] = m_formats[n];
 248     }
 249     pNew->AddRef();
 250     *ppenum = pNew;
 251
 252     return S_OK;
 253 }
 254
 255 // ----------------------------------------------------------------------------
 256 // wxIDataObject
 257 // ----------------------------------------------------------------------------
 258
 259 BEGIN_IID_TABLE(wxIDataObject)
 260     ADD_IID(Unknown)
 261     ADD_IID(DataObject)
 262 END_IID_TABLE;
 263
 264 IMPLEMENT_IUNKNOWN_METHODS(wxIDataObject)
 265
 266 wxIDataObject::wxIDataObject(wxDataObject *pDataObject)
 267 {
 268     m_pDataObject = pDataObject;
 269     m_mustDelete = false;
 270 }
 271
 272 wxIDataObject::~wxIDataObject()
 273 {
 274     if ( m_mustDelete )
 275     {
 276         delete m_pDataObject;
 277     }
 278 }
 279
 280 // get data functions
 281 STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
 282 {
 283     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetData"));
 284
 285     // is data is in our format?
 286     HRESULT hr = QueryGetData(pformatetcIn);
 287     if ( FAILED(hr) )
 288         return hr;
 289
 290     // for the bitmaps and metafiles we use the handles instead of global memory
 291     // to pass the data
 292     wxDataFormat format = (wxDataFormat::NativeFormat)pformatetcIn->cfFormat;
 293
 294     switch ( format )
 295     {
 296         case wxDF_BITMAP:
 297             pmedium->tymed = TYMED_GDI;
 298             break;
 299
 300         case wxDF_ENHMETAFILE:
 301             pmedium->tymed = TYMED_ENHMF;
 302             break;
 303
 304 #ifndef __WXWINCE__
 305         case wxDF_METAFILE:
 306             pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
 307                                            sizeof(METAFILEPICT));
 308             if ( !pmedium->hGlobal ) {
 309                 wxLogLastError(wxT("GlobalAlloc"));
 310                 return E_OUTOFMEMORY;
 311             }
 312             pmedium->tymed = TYMED_MFPICT;
 313             break;
 314 #endif
 315         default:
 316             // alloc memory
 317             size_t size = m_pDataObject->GetDataSize(format);
 318             if ( !size ) {
 319                 // it probably means that the method is just not implemented
 320                 wxLogDebug(wxT("Invalid data size - can't be 0"));
 321
 322                 return DV_E_FORMATETC;
 323             }
 324
 325             // we may need extra space for the buffer size
 326             size += m_pDataObject->GetBufferOffset( format );
 327
 328             HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size);
 329             if ( hGlobal == NULL ) {
 330                 wxLogLastError(wxT("GlobalAlloc"));
 331                 return E_OUTOFMEMORY;
 332             }
 333
 334             // copy data
 335             pmedium->tymed   = TYMED_HGLOBAL;
 336             pmedium->hGlobal = hGlobal;
 337     }
 338
 339     pmedium->pUnkForRelease = NULL;
 340
 341     // do copy the data
 342     hr = GetDataHere(pformatetcIn, pmedium);
 343     if ( FAILED(hr) ) {
 344         // free resources we allocated
 345         if ( pmedium->tymed & (TYMED_HGLOBAL | TYMED_MFPICT) ) {
 346             GlobalFree(pmedium->hGlobal);
 347         }
 348
 349         return hr;
 350     }
 351
 352     return S_OK;
 353 }
 354
 355 STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
 356                                         STGMEDIUM *pmedium)
 357 {
 358     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetDataHere"));
 359
 360     // put data in caller provided medium
 361     switch ( pmedium->tymed )
 362     {
 363         case TYMED_GDI:
 364             if ( !m_pDataObject->GetDataHere(wxDF_BITMAP, &pmedium->hBitmap) )
 365                 return E_UNEXPECTED;
 366             break;
 367
 368         case TYMED_ENHMF:
 369             if ( !m_pDataObject->GetDataHere(wxDF_ENHMETAFILE,
 370                                              &pmedium->hEnhMetaFile) )
 371                 return E_UNEXPECTED;
 372             break;
 373
 374         case TYMED_MFPICT:
 375             // fall through - we pass METAFILEPICT through HGLOBAL
 376
 377         case TYMED_HGLOBAL:
 378             {
 379                 // copy data
 380                 HGLOBAL hGlobal = pmedium->hGlobal;
 381                 void *pBuf = GlobalLock(hGlobal);
 382                 if ( pBuf == NULL ) {
 383                     wxLogLastError(wxT("GlobalLock"));
 384                     return E_OUTOFMEMORY;
 385                 }
 386
 387                 wxDataFormat format = pformatetc->cfFormat;
 388
 389                 // possibly put the size in the beginning of the buffer
 390                 pBuf = m_pDataObject->SetSizeInBuffer
 391                                       (
 392                                         pBuf,
 393                                         ::GlobalSize(hGlobal),
 394                                         format
 395                                       );
 396
 397                 if ( !m_pDataObject->GetDataHere(format, pBuf) )
 398                     return E_UNEXPECTED;
 399
 400                 GlobalUnlock(hGlobal);
 401             }
 402             break;
 403
 404         default:
 405             return DV_E_TYMED;
 406     }
 407
 408     return S_OK;
 409 }
 410
 411
 412 // set data functions
 413 STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
 414                                     STGMEDIUM *pmedium,
 415                                     BOOL       fRelease)
 416 {
 417     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData"));
 418
 419     switch ( pmedium->tymed )
 420     {
 421         case TYMED_GDI:
 422             m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap);
 423             break;
 424
 425         case TYMED_ENHMF:
 426             m_pDataObject->SetData(wxDF_ENHMETAFILE, 0, &pmedium->hEnhMetaFile);
 427             break;
 428
 429         case TYMED_MFPICT:
 430             // fall through - we pass METAFILEPICT through HGLOBAL
 431         case TYMED_HGLOBAL:
 432             {
 433                 wxDataFormat format = pformatetc->cfFormat;
 434
 435                 // this is quite weird, but for file drag and drop, explorer
 436                 // calls our SetData() with the formats we do *not* support!
 437                 //
 438                 // as we can't fix this bug in explorer (it's a bug because it
 439                 // should only use formats returned by EnumFormatEtc), do the
 440                 // check here
 441                 if ( !m_pDataObject->IsSupported(format, wxDataObject::Set) ) {
 442                     // go away!
 443                     return DV_E_FORMATETC;
 444                 }
 445
 446                 // copy data
 447                 const void *pBuf = GlobalLock(pmedium->hGlobal);
 448                 if ( pBuf == NULL ) {
 449                     wxLogLastError(wxT("GlobalLock"));
 450
 451                     return E_OUTOFMEMORY;
 452                 }
 453
 454                 // we've got a problem with SetData() here because the base
 455                 // class version requires the size parameter which we don't
 456                 // have anywhere in OLE data transfer - so we need to
 457                 // synthetise it for known formats and we suppose that all data
 458                 // in custom formats starts with a DWORD containing the size
 459                 size_t size;
 460                 switch ( format )
 461                 {
 462                     case CF_TEXT:
 463                     case CF_OEMTEXT:
 464                         size = strlen((const char *)pBuf);
 465                         break;
 466 #if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500))
 467                     case CF_UNICODETEXT:
 468 #if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) )
 469                         size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
 470 #else
 471                         size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
 472 #endif
 473                         break;
 474 #endif
 475                     case CF_BITMAP:
 476 #ifndef __WXWINCE__
 477                     case CF_HDROP:
 478                         // these formats don't use size at all, anyhow (but
 479                         // pass data by handle, which is always a single DWORD)
 480                         size = 0;
 481                         break;
 482 #endif
 483
 484                     case CF_DIB:
 485                         // the handler will calculate size itself (it's too
 486                         // complicated to do it here)
 487                         size = 0;
 488                         break;
 489
 490 #ifndef __WXWINCE__
 491                     case CF_METAFILEPICT:
 492                         size = sizeof(METAFILEPICT);
 493                         break;
 494 #endif
 495                     default:
 496                         pBuf = m_pDataObject->
 497                                     GetSizeFromBuffer(pBuf, &size, format);
 498                         size -= m_pDataObject->GetBufferOffset(format);
 499                 }
 500
 501                 bool ok = m_pDataObject->SetData(format, size, pBuf);
 502
 503                 GlobalUnlock(pmedium->hGlobal);
 504
 505                 if ( !ok ) {
 506                     return E_UNEXPECTED;
 507                 }
 508             }
 509             break;
 510
 511         default:
 512             return DV_E_TYMED;
 513     }
 514
 515     if ( fRelease ) {
 516         // we own the medium, so we must release it - but do *not* free any
 517         // data we pass by handle because we have copied it elsewhere
 518         switch ( pmedium->tymed )
 519         {
 520             case TYMED_GDI:
 521                 pmedium->hBitmap = 0;
 522                 break;
 523
 524             case TYMED_MFPICT:
 525                 pmedium->hMetaFilePict = 0;
 526                 break;
 527
 528             case TYMED_ENHMF:
 529                 pmedium->hEnhMetaFile = 0;
 530                 break;
 531         }
 532
 533         ReleaseStgMedium(pmedium);
 534     }
 535
 536     return S_OK;
 537 }
 538
 539 // information functions
 540 STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
 541 {
 542     // do we accept data in this format?
 543     if ( pformatetc == NULL ) {
 544         wxLogTrace(wxTRACE_OleCalls,
 545                    wxT("wxIDataObject::QueryGetData: invalid ptr."));
 546
 547         return E_INVALIDARG;
 548     }
 549
 550     // the only one allowed by current COM implementation
 551     if ( pformatetc->lindex != -1 ) {
 552         wxLogTrace(wxTRACE_OleCalls,
 553                    wxT("wxIDataObject::QueryGetData: bad lindex %ld"),
 554                    pformatetc->lindex);
 555
 556         return DV_E_LINDEX;
 557     }
 558
 559     // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...)
 560     if ( pformatetc->dwAspect != DVASPECT_CONTENT ) {
 561         wxLogTrace(wxTRACE_OleCalls,
 562                    wxT("wxIDataObject::QueryGetData: bad dwAspect %ld"),
 563                    pformatetc->dwAspect);
 564
 565         return DV_E_DVASPECT;
 566     }
 567
 568     // and now check the type of data requested
 569     wxDataFormat format = pformatetc->cfFormat;
 570     if ( m_pDataObject->IsSupportedFormat(format) ) {
 571         wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: %s ok"),
 572                    wxGetFormatName(format));
 573     }
 574     else {
 575         wxLogTrace(wxTRACE_OleCalls,
 576                    wxT("wxIDataObject::QueryGetData: %s unsupported"),
 577                    wxGetFormatName(format));
 578
 579         return DV_E_FORMATETC;
 580     }
 581
 582     // we only transfer data by global memory, except for some particular cases
 583     DWORD tymed = pformatetc->tymed;
 584     if ( (format == wxDF_BITMAP && !(tymed & TYMED_GDI)) &&
 585          !(tymed & TYMED_HGLOBAL) ) {
 586         // it's not what we're waiting for
 587         wxLogTrace(wxTRACE_OleCalls,
 588                    wxT("wxIDataObject::QueryGetData: %s != %s"),
 589                    GetTymedName(tymed),
 590                    GetTymedName(format == wxDF_BITMAP ? TYMED_GDI
 591                                                       : TYMED_HGLOBAL));
 592
 593         return DV_E_TYMED;
 594     }
 595
 596     return S_OK;
 597 }
 598
 599 STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *WXUNUSED(pFormatetcIn),
 600                                                   FORMATETC *pFormatetcOut)
 601 {
 602     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetCanonicalFormatEtc"));
 603
 604     // TODO we might want something better than this trivial implementation here
 605     if ( pFormatetcOut != NULL )
 606         pFormatetcOut->ptd = NULL;
 607
 608     return DATA_S_SAMEFORMATETC;
 609 }
 610
 611 STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir,
 612                                           IEnumFORMATETC **ppenumFormatEtc)
 613 {
 614     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::EnumFormatEtc"));
 615
 616     wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get
 617                                                        : wxDataObject::Set;
 618
 619     ULONG nFormatCount = wx_truncate_cast(ULONG, m_pDataObject->GetFormatCount(dir));
 620     wxDataFormat format;
 621     wxDataFormat *formats;
 622     formats = nFormatCount == 1 ? &format : new wxDataFormat[nFormatCount];
 623     m_pDataObject->GetAllFormats(formats, dir);
 624
 625     wxIEnumFORMATETC *pEnum = new wxIEnumFORMATETC(formats, nFormatCount);
 626     pEnum->AddRef();
 627     *ppenumFormatEtc = pEnum;
 628
 629     if ( formats != &format ) {
 630         delete [] formats;
 631     }
 632
 633     return S_OK;
 634 }
 635
 636 // ----------------------------------------------------------------------------
 637 // advise sink functions (not implemented)
 638 // ----------------------------------------------------------------------------
 639
 640 STDMETHODIMP wxIDataObject::DAdvise(FORMATETC   *WXUNUSED(pformatetc),
 641                                     DWORD        WXUNUSED(advf),
 642                                     IAdviseSink *WXUNUSED(pAdvSink),
 643                                     DWORD       *WXUNUSED(pdwConnection))
 644 {
 645   return OLE_E_ADVISENOTSUPPORTED;
 646 }
 647
 648 STDMETHODIMP wxIDataObject::DUnadvise(DWORD WXUNUSED(dwConnection))
 649 {
 650   return OLE_E_ADVISENOTSUPPORTED;
 651 }
 652
 653 STDMETHODIMP wxIDataObject::EnumDAdvise(IEnumSTATDATA **WXUNUSED(ppenumAdvise))
 654 {
 655   return OLE_E_ADVISENOTSUPPORTED;
 656 }
 657
 658 // ----------------------------------------------------------------------------
 659 // wxDataObject
 660 // ----------------------------------------------------------------------------
 661
 662 wxDataObject::wxDataObject()
 663 {
 664     m_pIDataObject = new wxIDataObject(this);
 665     m_pIDataObject->AddRef();
 666 }
 667
 668 wxDataObject::~wxDataObject()
 669 {
 670     ReleaseInterface(m_pIDataObject);
 671 }
 672
 673 void wxDataObject::SetAutoDelete()
 674 {
 675     ((wxIDataObject *)m_pIDataObject)->SetDeleteFlag();
 676     m_pIDataObject->Release();
 677
 678     // so that the dtor doesnt' crash
 679     m_pIDataObject = NULL;
 680 }
 681
 682 size_t wxDataObject::GetBufferOffset(const wxDataFormat& format )
 683 {
 684     // if we prepend the size of the data to the buffer itself, account for it
 685     return NeedsVerbatimData(format) ? 0 : sizeof(size_t);
 686 }
 687
 688 const void *wxDataObject::GetSizeFromBuffer(const void *buffer,
 689                                             size_t *size,
 690                                             const wxDataFormat& WXUNUSED(format))
 691 {
 692     // hack: the third parameter is declared non-const in Wine's headers so
 693     // cast away the const
 694     const size_t realsz = ::HeapSize(::GetProcessHeap(), 0,
 695                                      const_cast<void*>(buffer));
 696     if ( realsz == (size_t)-1 )
 697     {
 698         // note that HeapSize() does not set last error
 699         wxLogApiError(wxT("HeapSize"), 0);
 700         return NULL;
 701     }
 702
 703     *size = realsz;
 704
 705     return buffer;
 706 }
 707
 708 void* wxDataObject::SetSizeInBuffer( void* buffer, size_t size,
 709                                       const wxDataFormat& format )
 710 {
 711     size_t* p = (size_t *)buffer;
 712     if ( !NeedsVerbatimData(format) )
 713     {
 714         // prepend the size to the data and skip it
 715         *p++ = size;
 716     }
 717
 718     return p;
 719 }
 720
 721 #if wxDEBUG_LEVEL
 722
 723 const wxChar *wxDataObject::GetFormatName(wxDataFormat format)
 724 {
 725     // case 'xxx' is not a valid value for switch of enum 'wxDataFormat'
 726     #ifdef __VISUALC__
 727         #pragma warning(disable:4063)
 728     #endif // VC++
 729
 730     static wxChar s_szBuf[256];
 731     switch ( format ) {
 732         case CF_TEXT:         return wxT("CF_TEXT");
 733         case CF_BITMAP:       return wxT("CF_BITMAP");
 734         case CF_SYLK:         return wxT("CF_SYLK");
 735         case CF_DIF:          return wxT("CF_DIF");
 736         case CF_TIFF:         return wxT("CF_TIFF");
 737         case CF_OEMTEXT:      return wxT("CF_OEMTEXT");
 738         case CF_DIB:          return wxT("CF_DIB");
 739         case CF_PALETTE:      return wxT("CF_PALETTE");
 740         case CF_PENDATA:      return wxT("CF_PENDATA");
 741         case CF_RIFF:         return wxT("CF_RIFF");
 742         case CF_WAVE:         return wxT("CF_WAVE");
 743         case CF_UNICODETEXT:  return wxT("CF_UNICODETEXT");
 744 #ifndef __WXWINCE__
 745         case CF_METAFILEPICT: return wxT("CF_METAFILEPICT");
 746         case CF_ENHMETAFILE:  return wxT("CF_ENHMETAFILE");
 747         case CF_LOCALE:       return wxT("CF_LOCALE");
 748         case CF_HDROP:        return wxT("CF_HDROP");
 749 #endif
 750
 751         default:
 752             if ( !::GetClipboardFormatName(format, s_szBuf, WXSIZEOF(s_szBuf)) )
 753             {
 754                 // it must be a new predefined format we don't know the name of
 755                 wxSprintf(s_szBuf, wxT("unknown CF (0x%04x)"), format.GetFormatId());
 756             }
 757
 758             return s_szBuf;
 759     }
 760
 761     #ifdef __VISUALC__
 762         #pragma warning(default:4063)
 763     #endif // VC++
 764 }
 765
 766 #endif // wxDEBUG_LEVEL
 767
 768 // ----------------------------------------------------------------------------
 769 // wxBitmapDataObject supports CF_DIB format
 770 // ----------------------------------------------------------------------------
 771
 772 // TODO: support CF_DIB under Windows CE as well
 773
 774 size_t wxBitmapDataObject::GetDataSize() const
 775 {
 776 #if wxUSE_WXDIB && !defined(__WXWINCE__)
 777     return wxDIB::ConvertFromBitmap(NULL, GetHbitmapOf(GetBitmap()));
 778 #else
 779     return 0;
 780 #endif
 781 }
 782
 783 bool wxBitmapDataObject::GetDataHere(void *buf) const
 784 {
 785 #if wxUSE_WXDIB && !defined(__WXWINCE__)
 786     BITMAPINFO * const pbi = (BITMAPINFO *)buf;
 787
 788     return wxDIB::ConvertFromBitmap(pbi, GetHbitmapOf(GetBitmap())) != 0;
 789 #else
 790     wxUnusedVar(buf);
 791     return false;
 792 #endif
 793 }
 794
 795 bool wxBitmapDataObject::SetData(size_t WXUNUSED(len), const void *buf)
 796 {
 797 #if wxUSE_WXDIB && !defined(__WXWINCE__)
 798     const BITMAPINFO * const pbmi = (const BITMAPINFO *)buf;
 799
 800     HBITMAP hbmp = wxDIB::ConvertToBitmap(pbmi);
 801
 802     wxCHECK_MSG( hbmp, FALSE, wxT("pasting/dropping invalid bitmap") );
 803
 804     const BITMAPINFOHEADER * const pbmih = &pbmi->bmiHeader;
 805     wxBitmap bitmap(pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount);
 806     bitmap.SetHBITMAP((WXHBITMAP)hbmp);
 807
 808     // TODO: create wxPalette if the bitmap has any
 809
 810     SetBitmap(bitmap);
 811
 812     return true;
 813 #else
 814     wxUnusedVar(buf);
 815     return false;
 816 #endif
 817 }
 818
 819 // ----------------------------------------------------------------------------
 820 // wxBitmapDataObject2 supports CF_BITMAP format
 821 // ----------------------------------------------------------------------------
 822
 823 // the bitmaps aren't passed by value as other types of data (i.e. by copying
 824 // the data into a global memory chunk and passing it to the clipboard or
 825 // another application or whatever), but by handle, so these generic functions
 826 // don't make much sense to them.
 827
 828 size_t wxBitmapDataObject2::GetDataSize() const
 829 {
 830     return 0;
 831 }
 832
 833 bool wxBitmapDataObject2::GetDataHere(void *pBuf) const
 834 {
 835     // we put a bitmap handle into pBuf
 836     *(WXHBITMAP *)pBuf = GetBitmap().GetHBITMAP();
 837
 838     return true;
 839 }
 840
 841 bool wxBitmapDataObject2::SetData(size_t WXUNUSED(len), const void *pBuf)
 842 {
 843     HBITMAP hbmp = *(HBITMAP *)pBuf;
 844
 845     BITMAP bmp;
 846     if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
 847     {
 848         wxLogLastError(wxT("GetObject(HBITMAP)"));
 849     }
 850
 851     wxBitmap bitmap(bmp.bmWidth, bmp.bmHeight, bmp.bmPlanes);
 852     bitmap.SetHBITMAP((WXHBITMAP)hbmp);
 853
 854     if ( !bitmap.IsOk() ) {
 855         wxFAIL_MSG(wxT("pasting/dropping invalid bitmap"));
 856
 857         return false;
 858     }
 859
 860     SetBitmap(bitmap);
 861
 862     return true;
 863 }
 864
 865 #if 0
 866
 867 size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
 868 {
 869     if ( format.GetFormatId() == CF_DIB )
 870     {
 871         // create the DIB
 872         ScreenHDC hdc;
 873
 874         // shouldn't be selected into a DC or GetDIBits() would fail
 875         wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
 876                       wxT("can't copy bitmap selected into wxMemoryDC") );
 877
 878         // first get the info
 879         BITMAPINFO bi;
 880         if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0,
 881                         NULL, &bi, DIB_RGB_COLORS) )
 882         {
 883             wxLogLastError(wxT("GetDIBits(NULL)"));
 884
 885             return 0;
 886         }
 887
 888         return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage;
 889     }
 890     else // CF_BITMAP
 891     {
 892         // no data to copy - we don't pass HBITMAP via global memory
 893         return 0;
 894     }
 895 }
 896
 897 bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
 898                                      void *pBuf) const
 899 {
 900     wxASSERT_MSG( m_bitmap.IsOk(), wxT("copying invalid bitmap") );
 901
 902     HBITMAP hbmp = (HBITMAP)m_bitmap.GetHBITMAP();
 903     if ( format.GetFormatId() == CF_DIB )
 904     {
 905         // create the DIB
 906         ScreenHDC hdc;
 907
 908         // shouldn't be selected into a DC or GetDIBits() would fail
 909         wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
 910                       wxT("can't copy bitmap selected into wxMemoryDC") );
 911
 912         // first get the info
 913         BITMAPINFO *pbi = (BITMAPINFO *)pBuf;
 914         if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) )
 915         {
 916             wxLogLastError(wxT("GetDIBits(NULL)"));
 917
 918             return 0;
 919         }
 920
 921         // and now copy the bits
 922         if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
 923                         pbi, DIB_RGB_COLORS) )
 924         {
 925             wxLogLastError(wxT("GetDIBits"));
 926
 927             return false;
 928         }
 929     }
 930     else // CF_BITMAP
 931     {
 932         // we put a bitmap handle into pBuf
 933         *(HBITMAP *)pBuf = hbmp;
 934     }
 935
 936     return true;
 937 }
 938
 939 bool wxBitmapDataObject::SetData(const wxDataFormat& format,
 940                                  size_t size, const void *pBuf)
 941 {
 942     HBITMAP hbmp;
 943     if ( format.GetFormatId() == CF_DIB )
 944     {
 945         // here we get BITMAPINFO struct followed by the actual bitmap bits and
 946         // BITMAPINFO starts with BITMAPINFOHEADER followed by colour info
 947         ScreenHDC hdc;
 948
 949         BITMAPINFO *pbmi = (BITMAPINFO *)pBuf;
 950         BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader;
 951         hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT,
 952                               pbmi + 1, pbmi, DIB_RGB_COLORS);
 953         if ( !hbmp )
 954         {
 955             wxLogLastError(wxT("CreateDIBitmap"));
 956         }
 957
 958         m_bitmap.SetWidth(pbmih->biWidth);
 959         m_bitmap.SetHeight(pbmih->biHeight);
 960     }
 961     else // CF_BITMAP
 962     {
 963         // it's easy with bitmaps: we pass them by handle
 964         hbmp = *(HBITMAP *)pBuf;
 965
 966         BITMAP bmp;
 967         if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
 968         {
 969             wxLogLastError(wxT("GetObject(HBITMAP)"));
 970         }
 971
 972         m_bitmap.SetWidth(bmp.bmWidth);
 973         m_bitmap.SetHeight(bmp.bmHeight);
 974         m_bitmap.SetDepth(bmp.bmPlanes);
 975     }
 976
 977     m_bitmap.SetHBITMAP((WXHBITMAP)hbmp);
 978
 979     wxASSERT_MSG( m_bitmap.IsOk(), wxT("pasting invalid bitmap") );
 980
 981     return true;
 982 }
 983
 984 #endif // 0
 985
 986 // ----------------------------------------------------------------------------
 987 // wxFileDataObject
 988 // ----------------------------------------------------------------------------
 989
 990 bool wxFileDataObject::SetData(size_t WXUNUSED(size),
 991                                const void *WXUNUSED_IN_WINCE(pData))
 992 {
 993 #ifndef __WXWINCE__
 994     m_filenames.Empty();
 995
 996     // the documentation states that the first member of DROPFILES structure is
 997     // a "DWORD offset of double NUL terminated file list". What they mean by
 998     // this (I wonder if you see it immediately) is that the list starts at
 999     // ((char *)&(pDropFiles.pFiles)) + pDropFiles.pFiles. We're also advised
1000     // to use DragQueryFile to work with this structure, but not told where and
1001     // how to get HDROP.
1002     HDROP hdrop = (HDROP)pData;   // NB: it works, but I'm not sure about it
1003
1004     // get number of files (magic value -1)
1005     UINT nFiles = ::DragQueryFile(hdrop, (unsigned)-1, NULL, 0u);
1006
1007     wxCHECK_MSG ( nFiles != (UINT)-1, FALSE, wxT("wrong HDROP handle") );
1008
1009     // for each file get the length, allocate memory and then get the name
1010     wxString str;
1011     UINT len, n;
1012     for ( n = 0; n < nFiles; n++ ) {
1013         // +1 for terminating NUL
1014         len = ::DragQueryFile(hdrop, n, NULL, 0) + 1;
1015
1016         UINT len2 = ::DragQueryFile(hdrop, n, wxStringBuffer(str, len), len);
1017         m_filenames.Add(str);
1018
1019         if ( len2 != len - 1 ) {
1020             wxLogDebug(wxT("In wxFileDropTarget::OnDrop DragQueryFile returned\
1021  %d characters, %d expected."), len2, len - 1);
1022         }
1023     }
1024
1025     return true;
1026 #else
1027     return false;
1028 #endif
1029 }
1030
1031 void wxFileDataObject::AddFile(const wxString& file)
1032 {
1033     // just add file to filenames array
1034     // all useful data (such as DROPFILES struct) will be
1035     // created later as necessary
1036     m_filenames.Add(file);
1037 }
1038
1039 size_t wxFileDataObject::GetDataSize() const
1040 {
1041 #ifndef __WXWINCE__
1042     // size returned will be the size of the DROPFILES structure, plus the list
1043     // of filesnames (null byte separated), plus a double null at the end
1044
1045     // if no filenames in list, size is 0
1046     if ( m_filenames.empty() )
1047         return 0;
1048
1049 #if wxUSE_UNICODE_MSLU
1050     size_t sizeOfChar;
1051     if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
1052     {
1053         // Win9x always uses ANSI file names and MSLU doesn't help with this
1054         sizeOfChar = sizeof(char);
1055     }
1056     else
1057     {
1058         sizeOfChar = sizeof(wxChar);
1059     }
1060 #else // !wxUSE_UNICODE_MSLU
1061     static const size_t sizeOfChar = sizeof(wxChar);
1062 #endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU
1063
1064     // inital size of DROPFILES struct + null byte
1065     size_t sz = sizeof(DROPFILES) + sizeOfChar;
1066
1067     const size_t count = m_filenames.size();
1068     for ( size_t i = 0; i < count; i++ )
1069     {
1070         // add filename length plus null byte
1071         size_t len;
1072 #if wxUSE_UNICODE_MSLU
1073         if ( sizeOfChar == sizeof(char) )
1074             len = strlen(m_filenames[i].mb_str(*wxConvFileName));
1075         else
1076 #endif // wxUSE_UNICODE_MSLU
1077             len = m_filenames[i].length();
1078
1079         sz += (len + 1) * sizeOfChar;
1080     }
1081
1082     return sz;
1083 #else
1084     return 0;
1085 #endif
1086 }
1087
1088 bool wxFileDataObject::GetDataHere(void *WXUNUSED_IN_WINCE(pData)) const
1089 {
1090 #ifndef __WXWINCE__
1091     // pData points to an externally allocated memory block
1092     // created using the size returned by GetDataSize()
1093
1094     // if pData is NULL, or there are no files, return
1095     if ( !pData || m_filenames.empty() )
1096         return false;
1097
1098     // convert data pointer to a DROPFILES struct pointer
1099     LPDROPFILES pDrop = (LPDROPFILES) pData;
1100
1101     // initialize DROPFILES struct
1102     pDrop->pFiles = sizeof(DROPFILES);
1103     pDrop->fNC = FALSE;                 // not non-client coords
1104 #if wxUSE_UNICODE_MSLU
1105     pDrop->fWide = wxGetOsVersion() != wxOS_WINDOWS_9X ? TRUE : FALSE;
1106 #else
1107     pDrop->fWide = wxUSE_UNICODE;
1108 #endif
1109
1110     const size_t sizeOfChar = pDrop->fWide ? sizeof(wchar_t) : sizeof(char);
1111
1112     // set start of filenames list (null separated)
1113     BYTE *pbuf = (BYTE *)(pDrop + 1);
1114
1115     const size_t count = m_filenames.size();
1116     for ( size_t i = 0; i < count; i++ )
1117     {
1118         // copy filename to pbuf and add null terminator
1119         size_t len;
1120 #if wxUSE_UNICODE_MSLU
1121         if ( sizeOfChar == sizeof(char) )
1122         {
1123             wxCharBuffer buf(m_filenames[i].mb_str(*wxConvFileName));
1124             len = strlen(buf);
1125             memcpy(pbuf, buf, len*sizeOfChar);
1126         }
1127         else
1128 #endif // wxUSE_UNICODE_MSLU
1129         {
1130             len = m_filenames[i].length();
1131             memcpy(pbuf, m_filenames[i].wx_str(), len*sizeOfChar);
1132         }
1133
1134         pbuf += len*sizeOfChar;
1135
1136         memset(pbuf, 0, sizeOfChar);
1137         pbuf += sizeOfChar;
1138     }
1139
1140     // add final null terminator
1141     memset(pbuf, 0, sizeOfChar);
1142
1143     return true;
1144 #else
1145     return false;
1146 #endif
1147 }
1148
1149 // ----------------------------------------------------------------------------
1150 // wxURLDataObject
1151 // ----------------------------------------------------------------------------
1152
1153 // Work around bug in Wine headers
1154 #if defined(__WINE__) && defined(CFSTR_SHELLURL) && wxUSE_UNICODE
1155 #undef CFSTR_SHELLURL
1156 #define CFSTR_SHELLURL wxT("CFSTR_SHELLURL")
1157 #endif
1158
1159 class CFSTR_SHELLURLDataObject : public wxCustomDataObject
1160 {
1161 public:
1162     CFSTR_SHELLURLDataObject() : wxCustomDataObject(CFSTR_SHELLURL) {}
1163
1164     virtual size_t GetBufferOffset( const wxDataFormat& WXUNUSED(format) )
1165     {
1166         return 0;
1167     }
1168
1169     virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
1170                                            const wxDataFormat& WXUNUSED(format) )
1171     {
1172         // CFSTR_SHELLURL is _always_ ANSI text
1173         *size = strlen( (const char*)buffer );
1174
1175         return buffer;
1176     }
1177
1178     virtual void* SetSizeInBuffer( void* buffer, size_t WXUNUSED(size),
1179                                    const wxDataFormat& WXUNUSED(format) )
1180     {
1181         return buffer;
1182     }
1183
1184     wxDECLARE_NO_COPY_CLASS(CFSTR_SHELLURLDataObject);
1185 };
1186
1187
1188
1189 wxURLDataObject::wxURLDataObject(const wxString& url)
1190 {
1191     // we support CF_TEXT and CFSTR_SHELLURL formats which are basically the
1192     // same but it seems that some browsers only provide one of them so we have
1193     // to support both
1194     Add(new wxTextDataObject);
1195     Add(new CFSTR_SHELLURLDataObject());
1196
1197     // we don't have any data yet
1198     m_dataObjectLast = NULL;
1199
1200     if ( !url.empty() )
1201         SetURL(url);
1202 }
1203
1204 bool wxURLDataObject::SetData(const wxDataFormat& format,
1205                               size_t len,
1206                               const void *buf)
1207 {
1208     m_dataObjectLast = GetObject(format);
1209
1210     wxCHECK_MSG( m_dataObjectLast, FALSE,
1211                  wxT("unsupported format in wxURLDataObject"));
1212
1213     return m_dataObjectLast->SetData(len, buf);
1214 }
1215
1216 wxString wxURLDataObject::GetURL() const
1217 {
1218     wxString url;
1219     wxCHECK_MSG( m_dataObjectLast, url, wxT("no data in wxURLDataObject") );
1220
1221     if ( m_dataObjectLast->GetPreferredFormat() == CFSTR_SHELLURL )
1222     {
1223         const size_t len = m_dataObjectLast->GetDataSize();
1224         if ( !len )
1225             return wxString();
1226
1227         // CFSTR_SHELLURL is always ANSI so we need to convert it from it in
1228         // Unicode build
1229 #if wxUSE_UNICODE
1230         wxCharBuffer buf(len);
1231
1232         if ( m_dataObjectLast->GetDataHere(buf.data()) )
1233             url = buf;
1234 #else // !wxUSE_UNICODE
1235         // in ANSI build no conversion is necessary
1236         m_dataObjectLast->GetDataHere(wxStringBuffer(url, len));
1237 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
1238     }
1239     else // must be wxTextDataObject
1240     {
1241         url = static_cast<wxTextDataObject *>(m_dataObjectLast)->GetText();
1242     }
1243
1244     return url;
1245 }
1246
1247 void wxURLDataObject::SetURL(const wxString& url)
1248 {
1249     wxCharBuffer urlMB(url.mb_str());
1250     if ( urlMB )
1251     {
1252         const size_t len = strlen(urlMB);
1253
1254 #if !wxUSE_UNICODE
1255         // wxTextDataObject takes the number of characters in the string, not
1256         // the size of the buffer (which would be len+1)
1257         SetData(wxDF_TEXT, len, urlMB);
1258 #endif // !wxUSE_UNICODE
1259
1260         // however CFSTR_SHELLURLDataObject doesn't append NUL automatically
1261         // but we probably still want to have it on the clipboard (just to be
1262         // safe), so do append it
1263         SetData(wxDataFormat(CFSTR_SHELLURL), len + 1, urlMB);
1264     }
1265
1266 #if wxUSE_UNICODE
1267     SetData(wxDF_UNICODETEXT, url.length()*sizeof(wxChar), url.wc_str());
1268 #endif
1269 }
1270
1271 // ----------------------------------------------------------------------------
1272 // private functions
1273 // ----------------------------------------------------------------------------
1274
1275 #if wxDEBUG_LEVEL
1276
1277 static const wxChar *GetTymedName(DWORD tymed)
1278 {
1279     static wxChar s_szBuf[128];
1280     switch ( tymed ) {
1281         case TYMED_HGLOBAL:   return wxT("TYMED_HGLOBAL");
1282         case TYMED_FILE:      return wxT("TYMED_FILE");
1283         case TYMED_ISTREAM:   return wxT("TYMED_ISTREAM");
1284         case TYMED_ISTORAGE:  return wxT("TYMED_ISTORAGE");
1285         case TYMED_GDI:       return wxT("TYMED_GDI");
1286         case TYMED_MFPICT:    return wxT("TYMED_MFPICT");
1287         case TYMED_ENHMF:     return wxT("TYMED_ENHMF");
1288         default:
1289             wxSprintf(s_szBuf, wxT("type of media format %ld (unknown)"), tymed);
1290             return s_szBuf;
1291     }
1292 }
1293
1294 #endif // Debug
1295
1296 #else // not using OLE at all
1297
1298 // ----------------------------------------------------------------------------
1299 // wxDataObject
1300 // ----------------------------------------------------------------------------
1301
1302 #if wxUSE_DATAOBJ
1303
1304 wxDataObject::wxDataObject()
1305 {
1306 }
1307
1308 wxDataObject::~wxDataObject()
1309 {
1310 }
1311
1312 void wxDataObject::SetAutoDelete()
1313 {
1314 }
1315
1316 const wxChar *wxDataObject::GetFormatName(wxDataFormat WXUNUSED(format))
1317 {
1318     return NULL;
1319 }
1320
1321 #endif // wxUSE_DATAOBJ
1322
1323 #endif // wxUSE_OLE/!wxUSE_OLE
1324
1325