Gabriel Ivăncescu : comctl32/listbox: Use a helper to get the size of an item.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a853301e7ab34af57e6d0b6489b0ba4145d09190
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a853301e7ab34af57e6d0b648...

Author: Gabriel Ivăncescu 
Date:   Thu Feb 28 10:50:49 2019 +0000

comctl32/listbox: Use a helper to get the size of an item.

Signed-off-by: Gabriel Ivăncescu 
Signed-off-by: Huw Davies 
Signed-off-by: Alexandre Julliard

---

dlls/comctl32/listbox.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/dlls/comctl32/listbox.c b/dlls/comctl32/listbox.c
index 0025017..04540ad 100644
--- a/dlls/comctl32/listbox.c
+++ b/dlls/comctl32/listbox.c
@@ -127,6 +127,11 @@ static TIMER_DIRECTION LISTBOX_Timer = LB_TIMER_NONE;

static LRESULT LISTBOX_GetItemRect( const LB_DESCR *descr, INT index, RECT *rect );

+static size_t get_sizeof_item( const LB_DESCR *descr )
+{
+    return sizeof(LB_ITEMDATA);
+}
+
 static BOOL resize_storage(LB_DESCR *descr, UINT items_size)
 {
     LB_ITEMDATA *items;
@@ -137,7 +142,7 @@ static BOOL resize_storage(LB_DESCR *descr, UINT items_size)
         items_size = (items_size + LB_ARRAY_GRANULARITY - 1) & ~(LB_ARRAY_GRANULARITY - 1);
         if ((descr->style & (LBS_NODATA | LBS_MULTIPLESEL | LBS_EXTENDEDSEL)) != LBS_NODATA)
         {
-            items = heap_realloc(descr->items, items_size * sizeof(LB_ITEMDATA));
+            items = heap_realloc(descr->items, items_size * get_sizeof_item(descr));
             if (!items)
             {
                 SEND_NOTIFICATION(descr, LBN_ERRSPACE);
@@ -151,7 +156,7 @@ static BOOL resize_storage(LB_DESCR *descr, UINT items_size)
     if ((descr->style & LBS_NODATA) && descr->items && items_size > descr->nb_items)
     {
         memset(&descr->items[descr->nb_items], 0,
-               (items_size - descr->nb_items) * sizeof(LB_ITEMDATA));
+               (items_size - descr->nb_items) * get_sizeof_item(descr));
     }
     return TRUE;
 }
@@ -201,24 +206,26 @@ static void set_item_selected_state(LB_DESCR *descr, UINT index, BOOL state)

static void insert_item_data(LB_DESCR *descr, UINT index)
 {
+    size_t size = get_sizeof_item(descr);
     LB_ITEMDATA *item;

if (!descr->items) return;

item = descr->items + index;
     if (index < descr->nb_items)
-        memmove(item + 1, item, (descr->nb_items - index) * sizeof(LB_ITEMDATA));
+        memmove(item + 1, item, (descr->nb_items - index) * size);
 }

static void remove_item_data(LB_DESCR *descr, UINT index)
 {
+    size_t size = get_sizeof_item(descr);
     LB_ITEMDATA *item;

if (!descr->items) return;

item = descr->items + index;
     if (index < descr->nb_items)
-        memmove(item, item + 1, (descr->nb_items - index) * sizeof(LB_ITEMDATA));
+        memmove(item, item + 1, (descr->nb_items - index) * size);
 }

/***********************************************************************