bool ng_playlist_view_t::do_drag_drop(WPARAM wp)
{
metadb_handle_list_t<pfc::alloc_fast_aggressive> data;
m_playlist_api->activeplaylist_get_selected_items(data);
if (data.get_count() > 0)
{
static_api_ptr_t<playlist_incoming_item_filter> incoming_api;
IDataObject * pDataObject = incoming_api->create_dataobject(data);
if (pDataObject)
{
//IDataObject * pDataObjectFixed = new CDataObject;
#if 0
mmh::comptr_t<IEnumFORMATETC> pEnumFORMATETC;
pDataObject->EnumFormatEtc(DATADIR_GET, pEnumFORMATETC.get_pp());
FORMATETC fe;
memset(&fe,0,sizeof(fe));
while (S_OK == pEnumFORMATETC->Next(1, &fe, NULL))
{
STGMEDIUM stgm;
memset(&stgm, 0, sizeof(0));
if (SUCCEEDED(pDataObject->GetData(&fe, &stgm)))
{
//if (stgm.tymed != TYMED_ISTREAM)
// pDataObjectFixed->SetData(&fe, &stgm, FALSE);
ReleaseStgMedium(&stgm);
}
memset(&fe,0,sizeof(fe));
}
pEnumFORMATETC.release();
#endif
//pfc::com_ptr_t<IAsyncOperation> pAsyncOperation;
//HRESULT hr = pDataObject->QueryInterface(IID_IAsyncOperation, (void**)pAsyncOperation.receive_ptr());
DWORD blah = DROPEFFECT_NONE;
{
m_dragging = true;
m_DataObject = pDataObject;
m_dragging_initial_playlist = m_playlist_api->get_active_playlist();
pfc::com_ptr_t<mmh::ole::IDropSource_Generic> p_IDropSource_playlist = new mmh::ole::IDropSource_Generic(get_wnd(), pDataObject, wp);
HRESULT hr = DoDragDrop(pDataObject,p_IDropSource_playlist.get_ptr(),DROPEFFECT_COPY|DROPEFFECT_MOVE,&blah);
//SHDoDragDrop(get_wnd(), pDataObject,NULL,DROPEFFECT_COPY|DROPEFFECT_MOVE,&blah);
m_dragging=false;
m_DataObject.release();
m_dragging_initial_playlist = pfc_infinite;
/*if (DRAGDROP_S_DROP == hr && blah == DROPEFFECT_MOVE)
m_playlist_api->playlist_remove_selection(playlist);*/
}
//pDataObjectFixed->Release();
pDataObject->Release();
}
}
return true;
}
// @pymethod <o PyIEnumFORMATETC>|PyIDataObject|EnumFormatEtc|Returns an enumerator to list the data formats that the object supports.
PyObject *PyIDataObject::EnumFormatEtc(PyObject *self, PyObject *args)
{
IDataObject *pIDO = GetI(self);
if ( pIDO == NULL )
return NULL;
// @pyparm int|dwDirection|DATADIR_GET|Indicates whether to return formats that can be queried or set (pythoncom.DATADIR_GET or DATADIR_SET)
DWORD dwDirection = DATADIR_GET;
IEnumFORMATETC * ppenumFormatEtc;
if ( !PyArg_ParseTuple(args, "|l:EnumFormatEtc", &dwDirection) )
return NULL;
HRESULT hr;
PY_INTERFACE_PRECALL;
hr = pIDO->EnumFormatEtc( dwDirection, &ppenumFormatEtc );
PY_INTERFACE_POSTCALL;
if ( FAILED(hr) )
return PyCom_BuildPyException(hr, pIDO, IID_IDataObject );
return PyCom_PyObjectFromIUnknown(ppenumFormatEtc, IID_IEnumFORMATETC, FALSE);
}
bool wxClipboard::GetData( wxDataObject& data )
{
#if wxUSE_OLE_CLIPBOARD
IDataObject *pDataObject = NULL;
HRESULT hr = OleGetClipboard(&pDataObject);
if ( FAILED(hr) || !pDataObject )
{
wxLogSysError(hr, _("Failed to get data from the clipboard"));
return false;
}
// build the list of supported formats
size_t nFormats = data.GetFormatCount(wxDataObject::Set);
wxDataFormat format;
wxDataFormat *formats;
if ( nFormats == 1 )
{
// the most common case
formats = &format;
}
else
{
// bad luck, need to alloc mem
formats = new wxDataFormat[nFormats];
}
data.GetAllFormats(formats, wxDataObject::Set);
// get the data for the given formats
FORMATETC formatEtc;
CLIPFORMAT cf;
bool result = false;
// enumerate all explicit formats on the clipboard.
// note that this does not include implicit / synthetic (automatically
// converted) formats.
#ifdef __WXDEBUG__
// get the format enumerator
IEnumFORMATETC *pEnumFormatEtc = NULL;
hr = pDataObject->EnumFormatEtc(DATADIR_GET, &pEnumFormatEtc);
if ( FAILED(hr) || !pEnumFormatEtc )
{
wxLogSysError(hr,
_("Failed to retrieve the supported clipboard formats"));
}
else
{
// ask for the supported formats and see if there are any we support
for ( ;; )
{
ULONG nCount;
hr = pEnumFormatEtc->Next(1, &formatEtc, &nCount);
// don't use FAILED() because S_FALSE would pass it
if ( hr != S_OK )
{
// no more formats
break;
}
cf = formatEtc.cfFormat;
wxLogTrace(wxTRACE_OleCalls,
wxT("Object on the clipboard supports format %s."),
wxDataObject::GetFormatName(cf));
}
pEnumFormatEtc->Release();
}
#endif // Debug
STGMEDIUM medium;
// stop at the first valid format found on the clipboard
for ( size_t n = 0; !result && (n < nFormats); n++ )
{
// convert to NativeFormat Id
cf = formats[n].GetFormatId();
// if the format is not available, try the next one
// this test includes implicit / sythetic formats
if ( !::IsClipboardFormatAvailable(cf) )
continue;
formatEtc.cfFormat = cf;
formatEtc.ptd = NULL;
formatEtc.dwAspect = DVASPECT_CONTENT;
formatEtc.lindex = -1;
// use the appropriate tymed
switch ( formatEtc.cfFormat )
{
case CF_BITMAP:
formatEtc.tymed = TYMED_GDI;
break;
#ifndef __WXWINCE__
case CF_METAFILEPICT:
formatEtc.tymed = TYMED_MFPICT;
break;
case CF_ENHMETAFILE:
formatEtc.tymed = TYMED_ENHMF;
break;
#endif
default:
formatEtc.tymed = TYMED_HGLOBAL;
}
// try to get data
hr = pDataObject->GetData(&formatEtc, &medium);
if ( FAILED(hr) )
{
// try other tymed for GDI objects
if ( formatEtc.cfFormat == CF_BITMAP )
{
formatEtc.tymed = TYMED_HGLOBAL;
hr = pDataObject->GetData(&formatEtc, &medium);
}
}
if ( SUCCEEDED(hr) )
{
// pass the data to the data object
hr = data.GetInterface()->SetData(&formatEtc, &medium, true);
if ( FAILED(hr) )
{
wxLogDebug(wxT("Failed to set data in wxIDataObject"));
// IDataObject only takes the ownership of data if it
// successfully got it - which is not the case here
ReleaseStgMedium(&medium);
}
else
{
result = true;
}
}
//else: unsupported tymed?
}
if ( formats != &format )
{
delete [] formats;
}
//else: we didn't allocate any memory
// clean up and return
pDataObject->Release();
return result;
#elif wxUSE_DATAOBJ
wxCHECK_MSG( wxIsClipboardOpened(), false, wxT("clipboard not open") );
wxDataFormat format = data.GetPreferredFormat();
switch ( format )
{
case wxDF_TEXT:
case wxDF_OEMTEXT:
{
wxTextDataObject& textDataObject = (wxTextDataObject &)data;
char* s = (char*)wxGetClipboardData(format);
if ( !s )
return false;
textDataObject.SetText(wxString::FromAscii(s));
delete [] s;
return true;
}
case wxDF_BITMAP:
case wxDF_DIB:
{
wxBitmapDataObject& bitmapDataObject = (wxBitmapDataObject &)data;
wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data.GetPreferredFormat());
if ( !bitmap )
return false;
bitmapDataObject.SetBitmap(*bitmap);
delete bitmap;
return true;
}
#if wxUSE_METAFILE
case wxDF_METAFILE:
{
wxMetafileDataObject& metaFileDataObject = (wxMetafileDataObject &)data;
wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE);
if ( !metaFile )
return false;
metaFileDataObject.SetMetafile(*metaFile);
delete metaFile;
return true;
}
#endif // wxUSE_METAFILE
}
return false;
#else // !wxUSE_DATAOBJ
wxFAIL_MSG( wxT("no clipboard implementation") );
return false;
#endif // wxUSE_OLE_CLIPBOARD/wxUSE_DATAOBJ
}