Rewrote the push/pop state and ViewAttr stuff:

- it now seems to work finally correctly
- renamed ViewAttr to ViewState and put it into the BPrivate namespace
- some refactoring (moved some private BView methods to ViewState)
- renamed AS_LAYER_MOVETO/RESIZETO to *_TO (note the underscore)
- exchanged BView::originX/Y with fParentOffset (BPoint)
- divided AS_LAYER_GET_COLORS into separate ones for high/low/view color
- BView::SetPattern() now actually works as expected (ie. updates
  only if necessary)
- exchanged the ViewAttr::flags with ViewState::valid_flags which inverses
  the previous logic (which wasn't even used consistently)
- fState was initialized twice (incorrectly by the ViewAttr constructor,
  and then again correctly by initCachedState()) - now the ViewState
  constructor does the job alone, but correctly
- BView::PushState() no longer resets the state (it did so only locally
  anyway...)
- cleanup


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13325 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/interface/Window.cpp

@@ -833,10 +833,10 @@ BWindow::DispatchMessage(BMessage *msg, BHandler *target)
 					msg->FindFloat("height", i, &height);
 					if ((view = findView(top_view, token))) {
 						// update the views offset in parent
-						if (view->originX != frameLeftTop.x || view->originY != frameLeftTop.y) {
+						if (view->LeftTop() != frameLeftTop) {
 //printf("updating position (%.1f, %.1f): %s\n", frameLeftTop.x, frameLeftTop.y, view->Name());
-							view->originX = frameLeftTop.x;
-							view->originY = frameLeftTop.y;
+							view->fParentOffset = frameLeftTop;
+
 							// optionally call FrameMoved
 							if (view->fFlags & B_FRAME_EVENTS) {
 								STRACE(("Calling BView(%s)::FrameMoved( %.1f, %.1f )\n", view->Name(),