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comctl32/treeview: Improve item text change detection. 

Signed-off-by: Dan Bassi <wine.fixes@gmail.com>
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Dan Bassi 2018-04-13 10:24:40 +03:00 committed by Alexandre Julliard
parent 5293cb7183
commit c5cb2f1c50
1 changed files with 8 additions and 4 deletions
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10
dlls/comctl32/treeview.c
View File

@ -1125,7 +1125,9 @@ TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
if (tvItem->mask & TVIF_TEXT)
{
item->textWidth = 0; /* force width recalculation */
if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL) /* covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
/* Covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL)
{
int len;
LPWSTR newText;
@ -1134,12 +1136,14 @@ TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
else
len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
newText = heap_realloc(item->pszText, len * sizeof(WCHAR));
/* Allocate new block to make pointer comparison in item_changed() work. */
newText = heap_alloc(len * sizeof(WCHAR));
if (newText == NULL) return FALSE;
callbackClear |= TVIF_TEXT;
heap_free(item->pszText);
item->pszText = newText;
item->cchTextMax = len;
if (isW)
@ -2199,7 +2203,7 @@ TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
/* store the original item values */
/* Store the original item values. Text buffer will be freed in TREEVIEW_DoSetItemT() below. */
originalItem = *item;
if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))