* reverted Adi's premature changes to BWindow and restored _DetermineTarget() and

task_looper() again.
* removed BMessenger::fPreferred - whenever you had to specify "usePreferred" separately,
  you don't have to do that anymore - use B_PREFERRED_TOKEN instead.
* fixed BTokenSpace::GetToken() semantics: it will no longer touch the "object" argument
  in case of failure.
* Introduced a BWindow::_DistributeMessage() that will be part of the event dispatcher
  counterpart to the app_server (the other will be _DetermineTarget()).
* Made it easier to use Michael's Message4 implementation: just add the following line
  to your UserBuildConfig:
	AppendToConfigVar DEFINES : HAIKU_TOP src : USING_MESSAGE4 : global ;
* Introduced ServerWindow::HandlerMessenger() and FocusMessenger() - the first will
  target the client handler, while the other will target the preferred handler of the
  client looper (usually the view having focus).
* Fixed dano message unflattening in the Message4 code.
* Changed BMessage::PrintToStream() to no longer use macros in the Message4 implementation.
* I hope that's all - it's a huge change, but it's all connected.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15046 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/app/MessengerPrivate.h

@@ -7,6 +7,7 @@
 
 
 #include <Messenger.h>
+#include <TokenSpace.h>
 
 
 class BMessenger::Private {
@@ -21,10 +22,10 @@ class BMessenger::Private {
 		team_id	Team()
 			{ return fMessenger->fTeam; }
 		bool IsPreferredTarget()
-			{ return fMessenger->fPreferredTarget; }
+			{ return fMessenger->fHandlerToken == B_PREFERRED_TOKEN; }
 
-		void SetTo(team_id team, port_id port, int32 token, bool preferred)
-			{ fMessenger->SetTo(team, port, token, preferred); }
+		void SetTo(team_id team, port_id port, int32 token)
+			{ fMessenger->_SetTo(team, port, token); }
 
 	private:
 		BMessenger* fMessenger;