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Make RDW_ValidateParent() modify the update region of all parents, not 

just the direct parent.
This commit is contained in:
Rein Klazes 2000-04-23 20:39:09 +00:00 committed by Alexandre Julliard
parent 69277bba89
commit 8a0808fa92
1 changed files with 36 additions and 36 deletions
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72
windows/painting.c
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@ -471,56 +471,56 @@ END:
/*********************************************************************** /***********************************************************************
* RDW_ValidateParent [RDW_UpdateRgns() helper] * RDW_ValidateParent [RDW_UpdateRgns() helper]
* *
* Validate the portions of parent that are covered by a validated child * Validate the portions of parents that are covered by a validated child
* wndPtr = child * wndPtr = child
*/ */
void RDW_ValidateParent(WND *wndChild) void RDW_ValidateParent(WND *wndChild)
{ {
WND *wndParent = WIN_LockWndPtr(wndChild->parent); WND *wndParent = WIN_LockWndPtr(wndChild->parent);
WND *wndDesktop = WIN_GetDesktop(); WND *wndDesktop = WIN_GetDesktop();
HRGN hrg;
if ((wndParent) && (wndParent != wndDesktop) && !(wndParent->dwStyle & WS_CLIPCHILDREN)) if (wndChild->hrgnUpdate == 1 ) {
{ RECT r;
HRGN hrg; r.left = 0;
if (wndChild->hrgnUpdate == 1 ) r.top = 0;
r.right = wndChild->rectWindow.right - wndChild->rectWindow.left;
r.bottom = wndChild->rectWindow.bottom - wndChild->rectWindow.top;
hrg = CreateRectRgnIndirect( &r );
} else
hrg = wndChild->hrgnUpdate;
while ((wndParent) && (wndParent != wndDesktop) ) {
if (!(wndParent->dwStyle & WS_CLIPCHILDREN))
{ {
RECT r; if (wndParent->hrgnUpdate != 0)
r.left = 0;
r.top = 0;
r.right = wndChild->rectWindow.right - wndChild->rectWindow.left;
r.bottom = wndChild->rectWindow.bottom - wndChild->rectWindow.top;
hrg = CreateRectRgnIndirect( &r );
}
else
hrg = wndChild->hrgnUpdate;
if (wndParent->hrgnUpdate != 0)
{
POINT ptOffset;
RECT rect, rectParent;
if( wndParent->hrgnUpdate == 1 )
{ {
RECT r; POINT ptOffset;
RECT rect, rectParent;
if( wndParent->hrgnUpdate == 1 )
{
RECT r;
r.left = 0; r.left = 0;
r.top = 0; r.top = 0;
r.right = wndParent->rectWindow.right - wndParent->rectWindow.left; r.right = wndParent->rectWindow.right - wndParent->rectWindow.left;
r.bottom = wndParent->rectWindow.bottom - wndParent->rectWindow.top; r.bottom = wndParent->rectWindow.bottom - wndParent->rectWindow.top;
wndParent->hrgnUpdate = CreateRectRgnIndirect( &r ); wndParent->hrgnUpdate = CreateRectRgnIndirect( &r );
}
/* we must offset the child region by the offset of the child rect in the parent */
GetWindowRect(wndParent->hwndSelf, &rectParent);
GetWindowRect(wndChild->hwndSelf, &rect);
ptOffset.x = rect.left - rectParent.left;
ptOffset.y = rect.top - rectParent.top;
OffsetRgn( hrg, ptOffset.x, ptOffset.y );
CombineRgn( wndParent->hrgnUpdate, wndParent->hrgnUpdate, hrg, RGN_DIFF );
OffsetRgn( hrg, -ptOffset.x, -ptOffset.y );
} }
/* we must offset the child region by the offset of the child rect in the parent */
GetWindowRect(wndParent->hwndSelf, &rectParent);
GetWindowRect(wndChild->hwndSelf, &rect);
ptOffset.x = rect.left - rectParent.left;
ptOffset.y = rect.top - rectParent.top;
OffsetRgn( hrg, ptOffset.x, ptOffset.y );
CombineRgn( wndParent->hrgnUpdate, wndParent->hrgnUpdate, hrg, RGN_DIFF );
OffsetRgn( hrg, -ptOffset.x, -ptOffset.y );
} }
if (hrg != wndChild->hrgnUpdate) DeleteObject( hrg ); WIN_UpdateWndPtr(&wndParent, wndParent->parent);
} }
if (hrg != wndChild->hrgnUpdate) DeleteObject( hrg );
WIN_ReleaseWndPtr(wndParent); WIN_ReleaseWndPtr(wndParent);
WIN_ReleaseDesktop(); WIN_ReleaseDesktop();
} }