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Only repaint those parts of the desktop window which need repainting

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svn path=/trunk/; revision=5159
This commit is contained in:
Gé van Geldorp 2003-07-18 20:55:21 +00:00
parent f064f64b1d
commit 24475b126e
1 changed files with 10 additions and 3 deletions
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13
reactos/subsys/win32k/ntuser/vis.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* *
* $Id: vis.c,v 1.1 2003/07/17 07:49:15 gvg Exp $ * $Id: vis.c,v 1.2 2003/07/18 20:55:21 gvg Exp $
* *
* COPYRIGHT: See COPYING in the top level directory * COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
@ -198,6 +198,7 @@ VIS_ComputeVisibleRegion(PDESKTOP_OBJECT Desktop, PWINDOW_OBJECT Window,
return VisRgn; return VisRgn;
} }
/* FIXME: to be replaced by a normal window proc in CSRSS */
VOID STATIC FASTCALL VOID STATIC FASTCALL
VIS_RepaintDesktop(HWND Desktop, HRGN RepaintRgn) VIS_RepaintDesktop(HWND Desktop, HRGN RepaintRgn)
{ {
@ -211,13 +212,14 @@ VIS_RepaintDesktop(HWND Desktop, HRGN RepaintRgn)
VOID FASTCALL VOID FASTCALL
VIS_WindowLayoutChanged(PDESKTOP_OBJECT Desktop, PWINDOW_OBJECT Window, VIS_WindowLayoutChanged(PDESKTOP_OBJECT Desktop, PWINDOW_OBJECT Window,
HRGN UncoveredRgn) HRGN NewlyExposed)
{ {
PWINDOW_OBJECT DesktopWindow; PWINDOW_OBJECT DesktopWindow;
PWINDOW_OBJECT Child; PWINDOW_OBJECT Child;
PLIST_ENTRY CurrentEntry; PLIST_ENTRY CurrentEntry;
HRGN Uncovered; HRGN Uncovered;
HRGN Covered; HRGN Covered;
HRGN Repaint;
DesktopWindow = W32kGetWindowObject(Desktop->DesktopWindow); DesktopWindow = W32kGetWindowObject(Desktop->DesktopWindow);
Uncovered = UnsafeW32kCreateRectRgnIndirect(&DesktopWindow->WindowRect); Uncovered = UnsafeW32kCreateRectRgnIndirect(&DesktopWindow->WindowRect);
@ -236,7 +238,12 @@ VIS_WindowLayoutChanged(PDESKTOP_OBJECT Desktop, PWINDOW_OBJECT Window,
CurrentEntry = CurrentEntry->Flink; CurrentEntry = CurrentEntry->Flink;
} }
ExReleaseFastMutexUnsafe(&DesktopWindow->ChildrenListLock); ExReleaseFastMutexUnsafe(&DesktopWindow->ChildrenListLock);
VIS_RepaintDesktop(DesktopWindow->Self, Uncovered);
Repaint = W32kCreateRectRgn(0, 0, 0, 0);
W32kCombineRgn(Repaint, NewlyExposed, Uncovered, RGN_AND);
VIS_RepaintDesktop(DesktopWindow->Self, Repaint);
W32kDeleteObject(Repaint);
W32kDeleteObject(Uncovered); W32kDeleteObject(Uncovered);
} }