STDMETHODIMP QOleDataObject::GetDataHere( FORMATETC *pformatetc, STGMEDIUM *pmedium )
{
// is data is in our format?
HRESULT hr = QueryGetData( pformatetc );
if ( hr != S_OK )
return hr;
if ( pmedium->tymed != TYMED_HGLOBAL )
return DV_E_TYMED;
if ( !pmedium->hGlobal )
return STG_E_MEDIUMFULL;
HGLOBAL hGlobal = pmedium->hGlobal;
uint size = GlobalSize( hGlobal );
int cf = pformatetc->cfFormat;
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c ; c = all.next() ) {
const char * mime = c->mimeFor( cf );
if ( mime && m_dragObj->provides( mime ) ) {
QByteArray ba = m_dragObj->encodedData( mime );
if ( ba.size() > size )
return STG_E_MEDIUMFULL;
memcpy ( GlobalLock ( hGlobal ), ba.data(), ba.size() );
GlobalUnlock ( hGlobal );
return S_OK;
}
}
return E_UNEXPECTED;
}
STDMETHODIMP QOleDataObject::GetData( FORMATETC *pformatetcIn, STGMEDIUM *pmedium )
{
// is data is in our format?
HRESULT hr = QueryGetData( pformatetcIn );
if ( hr != S_OK )
return hr;
int cf = pformatetcIn->cfFormat;
pmedium->tymed = TYMED_HGLOBAL;
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c ; c = all.next() ) {
const char * mime = c->mimeFor( cf );
if ( mime && m_dragObj->provides( mime ) ) {
QByteArray ba = m_dragObj->encodedData( mime );
ba = c->convertFromMime( ba, mime, cf );
HGLOBAL hGlobal = GlobalAlloc ( GMEM_MOVEABLE | GMEM_SHARE, ba.size() );
if ( !hGlobal )
return E_OUTOFMEMORY;
memcpy ( GlobalLock ( hGlobal ), ba.data(), ba.size() );
GlobalUnlock ( hGlobal );
pmedium->hGlobal = hGlobal;
pmedium->pUnkForRelease = NULL;
return S_OK;
}
}
return E_UNEXPECTED;
}
STDMETHODIMP CTaskListData::GetData(FORMATETC *pFormat, STGMEDIUM *pMedium)
{
// OutputDebugString(_T("CTask::GetData\r\n"));
pMedium->tymed = TYMED_NULL;
pMedium->pUnkForRelease = NULL;
pMedium->hGlobal = NULL;
if(pMedium == NULL)return E_INVALIDARG;
if(SUCCEEDED(QueryGetData(pFormat)))
{
if((pFormat->cfFormat == CF_TASK_ID) && pFormat->tymed == TYMED_HGLOBAL)
{
pFormat->cfFormat = CF_TASK_ID;
pMedium->tymed = TYMED_HGLOBAL;
pMedium->hGlobal = CoTaskMemAlloc(sizeof(unsigned __int64));
if(pMedium->hGlobal == NULL)return E_OUTOFMEMORY;
*((unsigned __int64 *)pMedium->hGlobal) = m_id;
return S_OK;
}
}
return DV_E_FORMATETC;
}
bool CIDataObject::GetData ( const wxDataFormat& rFormat,
char* pzBuffer,
ULONG ulLen )
{
QueryGetData(rFormat);
if (rFormat.GetType() == wxDF_INVALID)
return false;
ULONG ulSize = m_pDataObject->GetDataSize(rFormat);
if (ulSize == 0)
{
//
// It probably means that the method is just not implemented
//
return false;
}
if (rFormat.GetType() == wxDF_PRIVATE)
{
//
// For custom formats, put the size with the data - alloc the
// space for it
//
ulSize += sizeof(ULONG);
}
if (ulSize > ulLen) // not enough room to copy
return false;
//
// Copy the data
//
GetDataHere( rFormat
,pzBuffer
,ulSize
);
return true;
} // end of CIDataObject::GetData
// get data functions
STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
{
wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetData"));
// is data is in our format?
HRESULT hr = QueryGetData(pformatetcIn);
if ( FAILED(hr) )
return hr;
// for the bitmaps and metafiles we use the handles instead of global memory
// to pass the data
wxDataFormat format = (wxDataFormat::NativeFormat)pformatetcIn->cfFormat;
format = HtmlFormatFixup(format);
// is this system data?
if ( GetSystemData(format, pmedium) )
{
// pmedium is already filled with corresponding data, so we're ready.
return S_OK;
}
switch ( format )
{
case wxDF_BITMAP:
pmedium->tymed = TYMED_GDI;
break;
case wxDF_ENHMETAFILE:
pmedium->tymed = TYMED_ENHMF;
break;
#ifndef __WXWINCE__
case wxDF_METAFILE:
pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
sizeof(METAFILEPICT));
if ( !pmedium->hGlobal ) {
wxLogLastError(wxT("GlobalAlloc"));
return E_OUTOFMEMORY;
}
pmedium->tymed = TYMED_MFPICT;
break;
#endif
default:
// alloc memory
size_t size = m_pDataObject->GetDataSize(format);
if ( !size ) {
// it probably means that the method is just not implemented
wxLogDebug(wxT("Invalid data size - can't be 0"));
return DV_E_FORMATETC;
}
// we may need extra space for the buffer size
size += m_pDataObject->GetBufferOffset( format );
HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size);
if ( hGlobal == NULL ) {
wxLogLastError(wxT("GlobalAlloc"));
return E_OUTOFMEMORY;
}
// copy data
pmedium->tymed = TYMED_HGLOBAL;
pmedium->hGlobal = hGlobal;
}
pmedium->pUnkForRelease = NULL;
// do copy the data
hr = GetDataHere(pformatetcIn, pmedium);
if ( FAILED(hr) ) {
// free resources we allocated
if ( pmedium->tymed & (TYMED_HGLOBAL | TYMED_MFPICT) ) {
GlobalFree(pmedium->hGlobal);
}
return hr;
}
return S_OK;
}
