bool QDropEvent::provides( const char * mimeType ) const
{
#ifdef DEBUG_QDND_WIN
qDebug( "QDropEvent::provides ( %s )", mimeType );
#endif
if ( !pIDataObject )
return false;
FORMATETC fmtMemory = { 0,
NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL };
/* Search all available mimes for mimeType and look if pIDataObject
can give us data in this clipboard format */
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c ; c = all.next() ) {
int cf = c->cfFor( mimeType );
if ( c->canConvert( mimeType, cf ) ) {
fmtMemory.cfFormat = cf;
if ( pIDataObject->QueryGetData( &fmtMemory ) == S_OK ) {
return true;
}
}
}
return false;
}
STDMETHODIMP QOleDataObject::EnumFormatEtc( DWORD dwDir, IEnumFORMATETC **ppenumFormatEtc )
{
if ( dwDir == DATADIR_SET )
return E_NOTIMPL;
int count = 0;
while ( m_dragObj->format( count ) )
count++;
int *formats = new int[ count ];
for ( int i = 0; i < count; i++ ) {
const char *mime = m_dragObj->format( i );
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c ; c = all.next() ) {
int cf = c->cfFor( mime );
if ( cf ) {
formats[ i ] = cf;
break;
}
}
}
qIEnumFORMATETC *pEnum = new qIEnumFORMATETC( formats, count );
pEnum->AddRef();
*ppenumFormatEtc = pEnum;
delete[] formats;
return ResultFromScode( S_OK );
}
/***********************************************
QDropEvent
************************************************/
QByteArray QDropEvent::encodedData( const char * format ) const
{
#ifdef DEBUG_QDND_WIN
qDebug( "QDropEvent::encodedData ( %s )", format );
#endif
QByteArray ba;
/* Currently we only support TYMED_HGLOBAL ... */
FORMATETC fmtMemory = { 0,
NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL };
STGMEDIUM stm;
if ( !pIDataObject ) {
return ba;
}
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c ; c = all.next() ) {
int cf = c->cfFor( format );
if ( c->canConvert( format, cf ) ) {
fmtMemory.cfFormat = cf;
if ( pIDataObject->QueryGetData( &fmtMemory ) == S_OK ) {
HRESULT hr = pIDataObject->GetData( &fmtMemory, &stm );
if ( ( hr != S_OK ) || ( !stm.hGlobal ) )
continue;
QByteArray data;
QBuffer buf ( data );
buf.open( IO_WriteOnly );
buf.writeBlock ( ( char* ) GlobalLock( stm.hGlobal ), GlobalSize ( stm.hGlobal ) );
buf.close();
GlobalUnlock ( stm.hGlobal );
ReleaseStgMedium( &stm );
ba = c->convertToMime( data, format, cf );
ReleaseStgMedium( &stm );
return ba;
}
}
}
return ba;
}