X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b39dbf34b887a73c525da903d8599f4f6b7eb8f9..572affa49c8087cb0dcb3a45dd29c729f3120b90:/src/msw/listctrl.cpp

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index 02cbeb0947..b009824380 100644
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -1841,7 +1841,19 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                     wxConvertFromMSWListItem(NULL, event.m_item, item);
                     if ( ((LV_ITEM)item).pszText == NULL ||
                          ((LV_ITEM)item).iItem == -1 )
+                    {
+                        // don't keep a stale wxTextCtrl around
+                        if ( m_textCtrl )
+                        {
+                            // EDIT control will be deleted by the list control itself so
+                            // prevent us from deleting it as well
+                            m_textCtrl->UnsubclassWin();
+                            m_textCtrl->SetHWND(0);
+                            delete m_textCtrl;
+                            m_textCtrl = NULL;
+                        }
                         return FALSE;
+                    }
 
                     event.m_itemIndex = event.m_item.m_itemId;
                 }
@@ -1853,7 +1865,19 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                     wxConvertFromMSWListItem(NULL, event.m_item, item);
                     if ( ((LV_ITEM)item).pszText == NULL ||
                          ((LV_ITEM)item).iItem == -1 )
+                    {
+                        // don't keep a stale wxTextCtrl around
+                        if ( m_textCtrl )
+                        {
+                            // EDIT control will be deleted by the list control itself so
+                            // prevent us from deleting it as well
+                            m_textCtrl->UnsubclassWin();
+                            m_textCtrl->SetHWND(0);
+                            delete m_textCtrl;
+                            m_textCtrl = NULL;
+                        }
                         return FALSE;
+                    }
 
                     event.m_itemIndex = event.m_item.m_itemId;
                 }
@@ -2056,21 +2080,18 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                     eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
 
-                    // we get some really stupid cache hints like ones for items in
-                    // range 0..0 for an empty control or, after deleting an item,
-                    // for items in invalid range - filter this garbage out
-                    if ( cacheHint->iFrom < cacheHint->iTo )
-                    {
-                        event.m_oldItemIndex = cacheHint->iFrom;
-
-                        long iMax = GetItemCount();
-                        event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
-                                                                  : iMax - 1;
-                    }
-                    else
-                    {
+                    // we get some really stupid cache hints like ones for
+                    // items in range 0..0 for an empty control or, after
+                    // deleting an item, for items in invalid range -- filter
+                    // this garbage out
+                    if ( cacheHint->iFrom > cacheHint->iTo )
                         return FALSE;
-                    }
+
+                    event.m_oldItemIndex = cacheHint->iFrom;
+
+                    const long iMax = GetItemCount();
+                    event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
+                                                              : iMax - 1;
                 }
                 break;