+#ifdef HAVE_NMLVFINDITEM
+ case LVN_ODFINDITEM:
+ // this message is only used with the virtual list control but
+ // even there we don't want to always use it: in a control with
+ // sufficiently big number of items (defined as > 1000 here),
+ // accidentally pressing a key could result in hanging an
+ // application waiting while it performs linear search
+ if ( IsVirtual() && GetItemCount() <= 1000 )
+ {
+ NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam;
+
+ // no match by default
+ *result = -1;
+
+ // we only handle string-based searches here
+ //
+ // TODO: what about LVFI_PARTIAL, should we handle this?
+ if ( !(pFindInfo->lvfi.flags & LVFI_STRING) )
+ {
+ return false;
+ }
+
+ const wxChar * const searchstr = pFindInfo->lvfi.psz;
+ const size_t len = wxStrlen(searchstr);
+
+ // this is the first item we should examine, search from it
+ // wrapping if necessary
+ const int startPos = pFindInfo->iStart;
+ const int maxPos = GetItemCount();
+ wxCHECK_MSG( startPos <= maxPos, false,
+ _T("bad starting position in LVN_ODFINDITEM") );
+
+ int currentPos = startPos;
+ do
+ {
+ // wrap to the beginning if necessary
+ if ( currentPos == maxPos )
+ {
+ // somewhat surprizingly, LVFI_WRAP isn't set in
+ // flags but we still should wrap
+ currentPos = 0;
+ }
+
+ // does this item begin with searchstr?
+ if ( wxStrnicmp(searchstr,
+ GetItemText(currentPos), len) == 0 )
+ {
+ *result = currentPos;
+ break;
+ }
+ }
+ while ( ++currentPos != startPos );
+
+ if ( *result == -1 )
+ {
+ // not found
+ return false;
+ }
+
+ SetItemState(*result,
+ wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED,
+ wxLIST_STATE_SELECTED | wxLIST_STATE_FOCUSED);
+ EnsureVisible(*result);
+ return true;
+ }
+ else
+ {
+ processed = false;
+ }
+ break;
+#endif // HAVE_NMLVFINDITEM
+
projects / wxWidgets.git / blobdiff