make client drawing slow again, made client drawing use B_OP_BLEND which shows problems with incorrect clipping during update sessions

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15161 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/servers/app/newerClipping/ClientLooper.cpp

@@ -38,7 +38,7 @@ ClientLooper::MessageReceived(BMessage* message)
 
 			for (int32 i = 0; i < fViewCount; i++) {
 				// the client is slow
-//				snooze(20000L);
+				snooze(20000L);
 				// send the command to redraw a view
 				BMessage command(MSG_DRAWING_COMMAND);
 				command.AddInt32("token", i);

src/tests/servers/app/newerClipping/ViewLayer.cpp

@@ -545,17 +545,25 @@ void
 ViewLayer::ClientDraw(DrawingEngine* drawingEngine, BRegion* effectiveClipping)
 {
 	if (drawingEngine->Lock()) {
-		drawingEngine->ConstrainClippingRegion(effectiveClipping);
 
 		// draw a frame with the view color
 		BRect b(Bounds());
 		b.OffsetTo(0.0, 0.0);
 		ConvertToTop(&b);
+		drawingEngine->PushState();
+		drawingEngine->ConstrainClippingRegion(effectiveClipping);
+
 		drawingEngine->SetHighColor(fViewColor);
+		drawingEngine->SetDrawingMode(B_OP_BLEND);
 		drawingEngine->StrokeRect(b);
+		b.InsetBy(1, 1);
+		drawingEngine->StrokeRect(b);
+		b.InsetBy(1, 1);
+		drawingEngine->StrokeRect(b);
+		b.InsetBy(1, 1);
 		drawingEngine->StrokeLine(b.LeftTop(), b.RightBottom());
 
-		drawingEngine->ConstrainClippingRegion(NULL);
+		drawingEngine->PopState();
 
 		drawingEngine->MarkDirty(effectiveClipping);
 		drawingEngine->Unlock();