// get default drop effect for given keyboard flags
static DWORD GetDropEffect(DWORD flags, wxDragResult defaultAction, DWORD pdwEffect);
- DECLARE_NO_COPY_CLASS(wxIDropTarget)
+ wxDECLARE_NO_COPY_CLASS(wxIDropTarget);
};
// ----------------------------------------------------------------------------
// Params : [in] DWORD flags kbd & mouse flags as passed to
// IDropTarget methods
// [in] wxDragResult defaultAction the default action of the drop target
-// [in] DWORD pdwEffect the supported actions of the drop
+// [in] DWORD pdwEffect the supported actions of the drop
// source passed to IDropTarget methods
// Notes : We do "move" normally and "copy" if <Ctrl> is pressed,
// which is the standard behaviour (currently there is no
wxLogTrace(wxTRACE_OleCalls, wxT("IDropTarget::DragEnter"));
wxASSERT_MSG( m_pIDataObject == NULL,
- _T("drop target must have data object") );
+ wxT("drop target must have data object") );
// show the list of formats supported by the source data object for the
// debugging purposes, this is quite useful sometimes - please don't remove
FORMATETC fmt;
while ( penumFmt->Next(1, &fmt, NULL) == S_OK )
{
- wxLogDebug(_T("Drop source supports format %s"),
+ wxLogDebug(wxT("Drop source supports format %s"),
wxDataObject::GetFormatName(fmt.cfFormat));
}
}
else
{
- wxLogLastError(_T("IDataObject::EnumFormatEtc"));
+ wxLogLastError(wxT("IDataObject::EnumFormatEtc"));
}
#endif // 0
- if ( !m_pTarget->IsAcceptedData(pIDataSource) ) {
+ if ( !m_pTarget->MSWIsAcceptedData(pIDataSource) ) {
// we don't accept this kind of data
*pdwEffect = DROPEFFECT_NONE;
return S_OK;
}
+ // for use in OnEnter and OnDrag calls
+ m_pTarget->MSWSetDataSource(pIDataSource);
+
// get hold of the data object
m_pIDataObject = pIDataSource;
m_pIDataObject->AddRef();
result = wxDragNone;
}
- // we need client coordinates to pass to wxWin functions
- if ( !ScreenToClient(m_hwnd, (POINT *)&pt) )
- {
- wxLogLastError(wxT("ScreenToClient"));
- }
+ if ( result != wxDragNone ) {
+ // we need client coordinates to pass to wxWin functions
+ if ( !ScreenToClient(m_hwnd, (POINT *)&pt) )
+ {
+ wxLogLastError(wxT("ScreenToClient"));
+ }
- *pdwEffect = ConvertDragResultToEffect(
- m_pTarget->OnDragOver(pt.x, pt.y, result)
- );
+ *pdwEffect = ConvertDragResultToEffect(
+ m_pTarget->OnDragOver(pt.x, pt.y, result)
+ );
+ }
+ else {
+ *pdwEffect = DROPEFFECT_NONE;
+ }
return S_OK;
}
// first ask the drop target if it wants data
if ( m_pTarget->OnDrop(pt.x, pt.y) ) {
// it does, so give it the data source
- m_pTarget->SetDataSource(pIDataSource);
+ m_pTarget->MSWSetDataSource(pIDataSource);
// and now it has the data
wxDragResult rc = ConvertDragEffectToResult(
// copy the data from the data source to the target data object
bool wxDropTarget::GetData()
{
- wxDataFormat format = GetSupportedFormat(m_pIDataSource);
+ wxDataFormat format = MSWGetSupportedFormat(m_pIDataSource);
if ( format == wxDF_INVALID ) {
// this is strange because IsAcceptedData() succeeded previously!
wxFAIL_MSG(wxT("strange - did supported formats list change?"));
// ----------------------------------------------------------------------------
// we need a data source, so wxIDropTarget gives it to us using this function
-void wxDropTarget::SetDataSource(IDataObject *pIDataSource)
+void wxDropTarget::MSWSetDataSource(IDataObject *pIDataSource)
{
m_pIDataSource = pIDataSource;
}
// determine if we accept data of this type
-bool wxDropTarget::IsAcceptedData(IDataObject *pIDataSource) const
+bool wxDropTarget::MSWIsAcceptedData(IDataObject *pIDataSource) const
{
- return GetSupportedFormat(pIDataSource) != wxDF_INVALID;
+ return MSWGetSupportedFormat(pIDataSource) != wxDF_INVALID;
}
// ----------------------------------------------------------------------------
// helper functions
// ----------------------------------------------------------------------------
-wxDataFormat wxDropTarget::GetSupportedFormat(IDataObject *pIDataSource) const
+wxDataFormat wxDropTarget::GetMatchingPair()
+{
+ return MSWGetSupportedFormat( m_pIDataSource );
+}
+
+wxDataFormat wxDropTarget::MSWGetSupportedFormat(IDataObject *pIDataSource) const
{
// this strucutre describes a data of any type (first field will be
// changing) being passed through global memory block.