DROPEFFECT COleServerItem::DoDragDrop(LPCRECT lpItemRect, CPoint ptOffset,
BOOL bIncludeLink, DWORD dwEffects, LPCRECT lpRectStartDrag)
{
ASSERT(AfxIsValidAddress(lpItemRect, sizeof(RECT)));
ASSERT_VALID(this);
ASSERT_VALID(this);
DROPEFFECT dropEffect = DROPEFFECT_NONE;
COleDataSource *pDataSource = NULL;
TRY
{
// get clipboard data for this item
CSize sizeItem(
lpItemRect->right - lpItemRect->left,
lpItemRect->bottom - lpItemRect->top);
pDataSource = OnGetClipboardData(bIncludeLink, &ptOffset, &sizeItem);
// add DROPEFFECT_LINK if link source is available
LPDATAOBJECT lpDataObject = (LPDATAOBJECT)
pDataSource->GetInterface(&IID_IDataObject);
ASSERT(lpDataObject != NULL);
FORMATETC formatEtc;
formatEtc.cfFormat = (CLIPFORMAT)_oleData.cfLinkSource;
formatEtc.ptd = NULL;
formatEtc.dwAspect = DVASPECT_CONTENT;
formatEtc.lindex = -1;
formatEtc.tymed = (TYMED)-1;
if (lpDataObject->QueryGetData(&formatEtc) == S_OK)
dwEffects |= DROPEFFECT_LINK;
// calculate default sensitivity rectangle
CRect rectDrag;
if (lpRectStartDrag == NULL)
{
rectDrag.SetRect(lpItemRect->left, lpItemRect->top, lpItemRect->left,
lpItemRect->top);
lpRectStartDrag = &rectDrag;
}
// do drag drop operation
dropEffect = pDataSource->DoDragDrop(dwEffects, lpRectStartDrag);
pDataSource->InternalRelease();
}
CATCH_ALL(e)
{
if (pDataSource != NULL)
pDataSource->InternalRelease();
THROW_LAST();
}
END_CATCH_ALL
return dropEffect;
}
bool FTPWindow::AcceptType(LPDATAOBJECT pDataObj) {
FORMATETC fmtetc;
fmtetc.ptd = NULL;
fmtetc.dwAspect = DVASPECT_CONTENT;
fmtetc.lindex = -1;
fmtetc.tymed = TYMED_HGLOBAL;
fmtetc.cfFormat = CF_HDROP;
if (pDataObj->QueryGetData(&fmtetc) == NOERROR)
return true;
return false;
}
DWORD CEdit::GetDropEffect( LPDATAOBJECT pIDataSource, DWORD grfKeyState, POINTL pt, CEditView *&pView, int &nBuffCol, int &nRow )
{
DWORD dwEffect = DROPEFFECT_NONE;
if ( !m_Buffer.IsReadOnly() )
{
POINT ptClient = { pt.x, pt.y };
ScreenToClient( m_hWnd, &ptClient );
int nView;
if ( HitTest( ptClient.x, ptClient.y, nView ) == eEditSpace && !PtInSelection( ptClient.x, ptClient.y, FALSE ) )
{
FORMATETC fe = { CLIP_TEXT, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
if ( pIDataSource->QueryGetData( &fe ) == S_OK )
{
RECT rcChar;
pView = m_Views[ nView ];
pView->GetCharPosFromPoint( ptClient.x, ptClient.y, nBuffCol, nRow, &rcChar );
nBuffCol = m_Buffer.ConvertViewColToBufferCol( nRow, nBuffCol );
if ( !IsRectEmpty( &rcChar ) && ( ptClient.x > ( ( rcChar.left + rcChar.right ) / 2 ) ) )
{
// cursor is closer to the next char
nBuffCol += m_Buffer.GetCharSize( nRow, nBuffCol );
}
dwEffect = ( HAS_FLAG( grfKeyState, MK_CONTROL ) ? DROPEFFECT_COPY : DROPEFFECT_MOVE );
if ( pView->ScrollIfNearBorder( ptClient.x, ptClient.y, TRUE ) )
{
dwEffect |= DROPEFFECT_SCROLL;
}
// make sure the effect is allowed by the source object
m_DropTarget.NormalizeDropEffect( dwEffect );
}
}
}
return dwEffect;
}
STDMETHODIMP QOleDropTarget::Drop( LPDATAOBJECT pIDataSource,
DWORD grfKeyState,
POINTL pt,
LPDWORD pdwEffect )
{
#ifdef DEBUG_QDND_TGT
qDebug( "QOleDropTarget::Drop( %p, %d, %d/%d, %d )",
pIDataSource, grfKeyState, pt.x, pt.y, *pdwEffect );
qDebug( "widget: %p, winID: %08x", widget, widget ? widget->winId() : 0 );
#endif
if ( !qt_tryModalHelper( widget ) ) {
*pdwEffect = DROPEFFECT_NONE;
return NOERROR;
}
lastPoint = widget->mapFromGlobal( QPoint( pt.x, pt.y ) );
// grfKeyState does not all ways contain button state in the drop so if
// it doesn't then use the last known button state;
if ( ( grfKeyState & KEY_STATE_BUTTON_MASK ) == 0 )
grfKeyState |= lastKeyState & KEY_STATE_BUTTON_MASK;
lastKeyState = grfKeyState;
FORMATETC s_fmtMemory = { 0,
NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL };
/* Can we convert the data? */
bool found = false;
QPtrList<QWindowsMime> all = QWindowsMime::all();
for ( QWindowsMime * c = all.first(); c && !found; c = all.next() ) {
for ( int i = 0; i < c->countCf(); i++ ) {
int cf = c->cf( i );
s_fmtMemory.cfFormat = cf;
if ( pIDataSource->QueryGetData( &s_fmtMemory ) == S_OK ) {
found = true;
break;
}
}
}
if ( !found ) {
return S_OK;
}
/* Just to be sure */
pIDataObject = pIDataSource;
pIDataObject->AddRef();
QDropEvent de( lastPoint );
de.setAction( translateKeyStateToQDropAction( grfKeyState, *pdwEffect ) );
if ( global_src )
global_src->setTarget( widget );
QApplication::sendEvent( widget, &de );
pIDataObject->Release();
pIDataObject = NULL;
return S_OK;
}
FARINTERNAL_(BOOL) UtQueryPictFormat(LPDATAOBJECT lpSrcDataObj,
LPFORMATETC lpforetc)
{
FORMATETC foretctemp; // local copy of current values of format desc
VDATEHEAP();
LEDebugOut((DEB_ITRACE, "%p _IN UtQueryPictFormat ( %p , %p )\n",
NULL, lpSrcDataObj, lpforetc));
// copy format descriptor
foretctemp = *lpforetc;
// set values and query for our preferred formats in order of
// preference
foretctemp.cfFormat = CF_METAFILEPICT;
foretctemp.tymed = TYMED_MFPICT;
if (lpSrcDataObj->QueryGetData(&foretctemp) == NOERROR)
{
goto QuerySuccess;
}
foretctemp.cfFormat = CF_ENHMETAFILE;
foretctemp.tymed = TYMED_ENHMF;
if( lpSrcDataObj->QueryGetData(&foretctemp) == NOERROR )
{
goto QuerySuccess;
}
foretctemp.cfFormat = CF_DIB;
foretctemp.tymed = TYMED_HGLOBAL;
if (lpSrcDataObj->QueryGetData(&foretctemp) == NOERROR)
{
goto QuerySuccess;
}
foretctemp.cfFormat = CF_BITMAP;
foretctemp.tymed = TYMED_GDI;
if (lpSrcDataObj->QueryGetData(&foretctemp) == NOERROR)
{
goto QuerySuccess;
}
LEDebugOut((DEB_ITRACE, "%p OUT UtQueryPictFormat ( %lu )\n",
NULL, FALSE));
return FALSE;
QuerySuccess:
// data object supports this format; change passed in
// format to match
lpforetc->cfFormat = foretctemp.cfFormat;
lpforetc->tymed = foretctemp.tymed;
// return success
LEDebugOut((DEB_ITRACE, "%p OUT UtQueryPictFormat ( %lu )\n",
NULL, TRUE));
return(TRUE);
}