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comctl32/listview: Don't invalidate when new style is same as old. 

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alex Henrie 2018-05-13 21:56:12 -06:00 committed by Alexandre Julliard
parent a602405efd
commit 8e9ea7a8a1
2 changed files with 13 additions and 3 deletions
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8
dlls/comctl32/listview.c
View File

@ -11108,14 +11108,13 @@ static void LISTVIEW_UpdateSize(LISTVIEW_INFO *infoPtr)
static INT LISTVIEW_StyleChanged(LISTVIEW_INFO *infoPtr, WPARAM wStyleType,
const STYLESTRUCT *lpss)
{
UINT uNewView = lpss->styleNew & LVS_TYPEMASK;
UINT uOldView = lpss->styleOld & LVS_TYPEMASK;
UINT uNewView, uOldView;
UINT style;
TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n",
wStyleType, lpss->styleOld, lpss->styleNew);
if (wStyleType != GWL_STYLE) return 0;
if (wStyleType != GWL_STYLE || lpss->styleNew == infoPtr->dwStyle) return 0;
infoPtr->dwStyle = lpss->styleNew;
@ -11127,6 +11126,9 @@ static INT LISTVIEW_StyleChanged(LISTVIEW_INFO *infoPtr, WPARAM wStyleType,
((lpss->styleNew & WS_VSCROLL) == 0))
ShowScrollBar(infoPtr->hwndSelf, SB_VERT, FALSE);
uNewView = lpss->styleNew & LVS_TYPEMASK;
uOldView = lpss->styleOld & LVS_TYPEMASK;
if (uNewView != uOldView)
{
HIMAGELIST himl;

8
dlls/comctl32/tests/listview.c
View File

@ -1781,6 +1781,7 @@ static void test_redraw(void)
HDC hdc;
BOOL res;
DWORD r;
RECT rect;
hwnd = create_listview_control(LVS_REPORT);
subclass_header(hwnd);
@ -1838,6 +1839,13 @@ static void test_redraw(void)
ReleaseDC(hwndparent, hdc);
/* test setting the window style to what it already was */
UpdateWindow(hwnd);
SetWindowLongA(hwnd, GWL_STYLE, GetWindowLongA(hwnd, GWL_STYLE));
GetUpdateRect(hwnd, &rect, FALSE);
ok(rect.left == 0 && rect.top == 0 && rect.right == 0 && rect.bottom == 0,
"Expected empty update rect, got %s\n", wine_dbgstr_rect(&rect));
DestroyWindow(hwnd);
}