From 8ee34f96da42132424807230fcbbe0033651eb29 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20A=C3=9Fmus?= <superstippi@gmx.de>
Date: Sat, 28 Mar 2009 14:12:55 +0000
Subject: [PATCH] When setting view flags which toggle the B_DRAW_ON_CHILDREN
 flag, immediately trigger a recalculation of the view clipping region (it
 will now include children).

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29755 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/servers/app/ServerWindow.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/servers/app/ServerWindow.cpp b/src/servers/app/ServerWindow.cpp
index 1337c4656d..e5437e73ed 100644
--- a/src/servers/app/ServerWindow.cpp
+++ b/src/servers/app/ServerWindow.cpp
@@ -1577,9 +1577,20 @@ fDesktop->LockSingleWindow();
 		{
 			uint32 flags;
 			link.Read<uint32>(&flags);
+
+			// The views clipping changes when the B_DRAW_ON_CHILDREN flag is
+			// toggled.
+			bool updateClipping = (flags & B_DRAW_ON_CHILDREN)
+				^ (fCurrentView->Flags() & B_DRAW_ON_CHILDREN);
+
 			fCurrentView->SetFlags(flags);
 			_UpdateDrawState(fCurrentView);
 
+			if (updateClipping) {
+				fCurrentView->RebuildClipping(false);
+				fCurrentDrawingRegionValid = false;
+			}
+
 			DTRACE(("ServerWindow %s: Message AS_VIEW_SET_FLAGS: "
 				"View: %s -> flags: %lu\n", Title(), fCurrentView->Name(),
 				flags));