server: Don't invalidate the newly exposed child region on the parent if it doesn't clip children.

This partly reverts e42eaaaf. Signed-off-by: Jinoh Kang <jinoh.kang.kr@gmail.com>

server: Don't invalidate the newly exposed child region on the parent if it doesn't clip children.
33617af8 · Jinoh Kang · Alexandre Julliard · c310e975 · 33617af8 · 33617af8
Commit 33617af8 authored Oct 31, 2022 by Jinoh Kang Committed by Alexandre Julliard Nov 04, 2022
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msg.c dlls/user32/tests/msg.c +0 -4

window.c server/window.c +2 -4

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--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -9302,8 +9302,6 @@ static void subtest_swp_paint_regions_( int line, int wrap_toplevel, LPCSTR pare
            }
            else
            {
-                todo_wine_if( !EqualRect( &rect_old, &rect_new ) &&
-                              (extest->style & WS_CLIPCHILDREN) == 0 && !is_composited )
                ok( !!rgn_ok, "Parent update region shall match expected region\n" );
            }

@@ -9365,8 +9363,6 @@ static void subtest_swp_paint_regions_( int line, int wrap_toplevel, LPCSTR pare
            }
            else
            {
-                todo_wine_if( !EqualRect( &rect_old, &rect_new ) &&
-                              (extest->style & WS_CLIPCHILDREN) == 0 && !is_composited )
                ok( !!rgn_ok, "Child update region shall match expected region\n" );
            }


--- a/server/window.c
+++ b/server/window.c
@@ -1766,10 +1766,8 @@ static struct region *expose_window( struct window *win, const rectangle_t *old_
        offset_region( new_vis_rgn, win->window_rect.left - old_window_rect->left,
                       win->window_rect.top - old_window_rect->top  );

-        if (is_composited ? union_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ) :
-            (win->parent->style & WS_CLIPCHILDREN) ?
-            subtract_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ) :
-            xor_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ))
+        if (is_composited ? union_region( new_vis_rgn, old_vis_rgn, new_vis_rgn )
+                          : subtract_region( new_vis_rgn, old_vis_rgn, new_vis_rgn ))
        {
            if (!is_region_empty( new_vis_rgn ))
            {