// finds an action, adding it if necessary
CAction * CMUSHclientDoc::GetAction (const CString & strAction,
const CString & strHint,
const CString & strVariable)
{
// not needed if all these are empty
if (strAction.IsEmpty () &&
strHint.IsEmpty () &&
strVariable.IsEmpty ())
return NULL;
unsigned long iHash = MakeActionHash (strAction, strHint, strVariable);
for (POSITION pos = m_ActionList.GetHeadPosition (); pos; )
{
CAction * pAction = m_ActionList.GetNext (pos);
if (pAction->m_iHash == iHash &&
pAction->m_strAction == strAction &&
pAction->m_strHint == strHint &&
pAction->m_strVariable == strVariable)
{
pAction->AddRef (); // one more user of it
return pAction;
}
} // end of lookup loop
// here when action not found
CAction * pAction = new CAction (strAction, strHint, strVariable, this);
pAction->AddRef ();
m_ActionList.AddTail (pAction);
return pAction;
} // end of CMUSHclientDoc::GetAction
