void wxDataObjectComposite::Add(wxDataObjectSimple *dataObject, bool preferred)
{
- // check if the data format of the passed object already exists in the composite data object, if this is the case
- // do not add the data object and display a message in debug mode (otherwise this method fails silently):
- // start checking if the data format exists for the 'GET' direction:
- size_t indexFormats;
- size_t noOfFormats;
- wxDataFormat* formats;
-
- noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Get);
- formats = new wxDataFormat[noOfFormats];
- for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
- wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Get) == NULL,
- _("The data format for the GET-direction of the to be added data object already exists"));
- delete[] formats;
- // do the same with the 'SET' direction:
- noOfFormats = dataObject->GetFormatCount(wxDataObjectBase::Set);
-
- formats = new wxDataFormat[noOfFormats];
- for (indexFormats=0; indexFormats<noOfFormats; ++indexFormats)
- wxCHECK_RET(this->GetObject(formats[indexFormats],wxDataObjectBase::Set) == NULL,
- _("The data format for the SET-direction of the to be added data object already exists"));
- delete[] formats;
-
- // if we reach this location the data object can simply be appended:
if ( preferred )
m_preferred = m_dataObjects.GetCount();
+
m_dataObjects.Append( dataObject );
}
#endif
-size_t wxDataObjectComposite::GetFormatCount(Direction WXUNUSED(dir)) const
+size_t wxDataObjectComposite::GetFormatCount(Direction dir) const
{
- // TODO what about the Get/Set only formats?
- return m_dataObjects.GetCount();
+ size_t n = 0;
+
+ // NOTE: some wxDataObjectSimple objects may return a number greater than 1
+ // from GetFormatCount(): this is the case of e.g. wxTextDataObject
+ // under wxMac and wxGTK
+ wxSimpleDataObjectList::compatibility_iterator node;
+ for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
+ n += node->GetData()->GetFormatCount(dir);
+
+ return n;
}
void wxDataObjectComposite::GetAllFormats(wxDataFormat *formats,
for ( node = m_dataObjects.GetFirst(); node; node = node->GetNext() )
{
- node->GetData()->GetAllFormats(formats+index,dir);
- index += node->GetData()->GetFormatCount(dir);
+ // NOTE: some wxDataObjectSimple objects may return more than 1 format
+ // from GetAllFormats(): this is the case of e.g. wxTextDataObject
+ // under wxMac and wxGTK
+ node->GetData()->GetAllFormats(formats+index, dir);
+ index += node->GetData()->GetFormatCount(dir);
}
}