bool CTextObject::AcceptDataFormat(IDataObject* pDataObject)
{
if (pDataObject == NULL)
return false;
CLIPFORMAT cfFormat = GetDataFormat(pDataObject);
return (cfFormat != CLIPFORMAT(0));
}
QT_ENSURE_STACK_ALIGNED_FOR_SSE STDMETHODIMP
QWindowsOleDropTarget::Drop(LPDATAOBJECT pDataObj, DWORD grfKeyState,
POINTL pt, LPDWORD pdwEffect)
{
if (IDropTargetHelper* dh = QWindowsDrag::instance()->dropHelper())
dh->Drop(pDataObj, reinterpret_cast<POINT*>(&pt), *pdwEffect);
qCDebug(lcQpaMime) << __FUNCTION__ << ' ' << m_window
<< "keys=" << grfKeyState << "pt=" << pt.x << ',' << pt.y;
m_lastPoint = QWindowsGeometryHint::mapFromGlobal(m_window, QPoint(pt.x,pt.y));
// grfKeyState does not all ways contain button state in the drop
QGuiApplicationPrivate::mouse_buttons = toQtMouseButtons(m_lastKeyState);
QGuiApplicationPrivate::modifier_buttons = toQtKeyboardModifiers(grfKeyState);
QWindowsDrag *windowsDrag = QWindowsDrag::instance();
const QPlatformDropQtResponse response =
QWindowSystemInterface::handleDrop(m_window, windowsDrag->dropData(),
m_lastPoint,
translateToQDragDropActions(*pdwEffect));
QGuiApplicationPrivate::mouse_buttons = toQtMouseButtons(grfKeyState);
m_lastKeyState = grfKeyState;
if (response.isAccepted()) {
const Qt::DropAction action = response.acceptedAction();
if (action == Qt::MoveAction || action == Qt::TargetMoveAction) {
if (action == Qt::MoveAction)
m_chosenEffect = DROPEFFECT_MOVE;
else
m_chosenEffect = DROPEFFECT_COPY;
HGLOBAL hData = GlobalAlloc(0, sizeof(DWORD));
if (hData) {
DWORD *moveEffect = reinterpret_cast<DWORD *>(GlobalLock(hData));
*moveEffect = DROPEFFECT_MOVE;
GlobalUnlock(hData);
STGMEDIUM medium;
memset(&medium, 0, sizeof(STGMEDIUM));
medium.tymed = TYMED_HGLOBAL;
medium.hGlobal = hData;
FORMATETC format;
format.cfFormat = CLIPFORMAT(RegisterClipboardFormat(CFSTR_PERFORMEDDROPEFFECT));
format.tymed = TYMED_HGLOBAL;
format.ptd = 0;
format.dwAspect = 1;
format.lindex = -1;
windowsDrag->dropDataObject()->SetData(&format, &medium, true);
}
} else {
m_chosenEffect = translateToWinDragEffects(action);
}
} else {
m_chosenEffect = DROPEFFECT_NONE;
}
*pdwEffect = m_chosenEffect;
windowsDrag->releaseDropDataObject();
return NOERROR;
}
void _Copy<FORMATETC>::init(FORMATETC* p)
{
p->cfFormat = CLIPFORMAT(0);
p->dwAspect = DVASPECT_CONTENT;
p->lindex = -1;
p->ptd = NULL;
p->tymed = TYMED_NULL;
}
CLIPFORMAT CTextObject::GetDataFormat(IDataObject* pDataObject)
{
CLIPFORMAT cfFormat;
#ifdef _UNICODE
if (CheckDataFormat(pDataObject, CF_UNICODETEXT))
cfFormat = CF_UNICODETEXT;
else if (CheckDataFormat(pDataObject, CF_TEXT))
cfFormat = CF_TEXT;
else
cfFormat = CLIPFORMAT(0);
#else
if (CheckDataFormat(pDataObject, CF_TEXT))
cfFormat = CF_TEXT;
else if (CheckDataFormat(pDataObject, CF_UNICODETEXT))
cfFormat = CF_UNICODETEXT;
else
cfFormat = CLIPFORMAT(0);
#endif
return cfFormat;
}
bool CTextObject::SetObjectText(IDataObject* pDataObject)
{
if (pDataObject == NULL)
return false;
CLIPFORMAT cfFormat = GetDataFormat(pDataObject);
if (cfFormat == CLIPFORMAT(0))
return false;
FORMATETC format;
format.cfFormat = cfFormat;
format.dwAspect = DVASPECT_CONTENT;
format.lindex = -1;
format.ptd = NULL;
format.tymed = SUPPORTED_MEDIUM_TYPES;
STGMEDIUM stgm;
stgm.tymed = TYMED_NULL;
stgm.pUnkForRelease = NULL;
HRESULT hRes = pDataObject->GetData(&format, &stgm);
if (FAILED(hRes))
return false;
hRes = SetData(&format, &stgm, TRUE);
return SUCCEEDED(hRes);
}
