bool ConfigGroup::DeleteEntry(const wxChar *szName)
{
ConfigEntry *pEntry = FindEntry(szName);
wxCHECK( pEntry != NULL, FALSE ); // deleting non existing item?
LineList *pLine = pEntry->GetLine();
if ( pLine != NULL ) {
// notice that we may do this test inside the previous "if" because the
// last entry's line is surely !NULL
if ( pEntry == m_pLastEntry ) {
// our last entry is being deleted - find the last one which stays
wxASSERT( m_pLine != NULL ); // if we have an entry with !NULL pLine...
// go back until we find another entry or reach the group's line
ConfigEntry *pNewLast = NULL;
size_t n, nEntries = m_aEntries.Count();
LineList *pl;
for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) {
// is it our subgroup?
for ( n = 0; (pNewLast == NULL) && (n < nEntries); n++ ) {
if ( m_aEntries[n]->GetLine() == m_pLine )
pNewLast = m_aEntries[n];
}
if ( pNewLast != NULL ) // found?
break;
}
if ( pl == m_pLine ) {
wxASSERT( !pNewLast ); // how comes it has the same line as we?
// we've reached the group line without finding any subgroups
m_pLastEntry = NULL;
}
else
m_pLastEntry = pNewLast;
}
m_pConfig->LineListRemove(pLine);
}
// we must be written back for the changes to be saved
SetDirty();
m_aEntries.Remove(pEntry);
delete pEntry;
return TRUE;
}
// doesn't delete the subgroup itself, but does remove references to it from
// all other data structures (and normally the returned pointer should be
// deleted a.s.a.p. because there is nothing much to be done with it anyhow)
bool ConfigGroup::DeleteSubgroup(ConfigGroup *pGroup)
{
wxCHECK( pGroup != NULL, FALSE ); // deleting non existing group?
// delete all entries
size_t nCount = pGroup->m_aEntries.Count();
for ( size_t nEntry = 0; nEntry < nCount; nEntry++ ) {
LineList *pLine = pGroup->m_aEntries[nEntry]->GetLine();
if ( pLine != NULL )
m_pConfig->LineListRemove(pLine);
}
// and subgroups of this sungroup
nCount = pGroup->m_aSubgroups.Count();
for ( size_t nGroup = 0; nGroup < nCount; nGroup++ ) {
pGroup->DeleteSubgroup(pGroup->m_aSubgroups[0]);
}
LineList *pLine = pGroup->m_pLine;
if ( pLine != NULL ) {
// notice that we may do this test inside the previous "if" because the
// last entry's line is surely !NULL
if ( pGroup == m_pLastGroup ) {
// our last entry is being deleted - find the last one which stays
wxASSERT( m_pLine != NULL ); // we have a subgroup with !NULL pLine...
// go back until we find a subgroup or reach the group's line
ConfigGroup *pNewLast = NULL;
size_t n, nSubgroups = m_aSubgroups.Count();
LineList *pl;
for ( pl = pLine->Prev(); pl != m_pLine; pl = pl->Prev() ) {
// is it our subgroup?
for ( n = 0; (pNewLast == NULL) && (n < nSubgroups); n++ ) {
// do _not_ call GetGroupLine! we don't want to add it to the local
// file if it's not already there
if ( m_aSubgroups[n]->m_pLine == m_pLine )
pNewLast = m_aSubgroups[n];
}
if ( pNewLast != NULL ) // found?
break;
}
if ( pl == m_pLine ) {
wxASSERT( !pNewLast ); // how comes it has the same line as we?
// we've reached the group line without finding any subgroups
m_pLastGroup = NULL;
}
else
m_pLastGroup = pNewLast;
}
m_pConfig->LineListRemove(pLine);
}
SetDirty();
m_aSubgroups.Remove(pGroup);
delete pGroup;
return TRUE;
}
