From 15b4f310a6ee9a8f6f0c0b8ca1646ec7fb73249b Mon Sep 17 00:00:00 2001
From: Chris Danford <chrisdanford@users.sourceforge.net>
Date: Fri, 25 Feb 2005 05:23:29 +0000
Subject: [PATCH] add more BroadcastOnChange templates

---
 stepmania/src/MessageManager.cpp | 17 +++++++++----
 stepmania/src/MessageManager.h   | 41 ++++++++++++++++++++++++++++----
 2 files changed, 50 insertions(+), 8 deletions(-)

diff --git a/stepmania/src/MessageManager.cpp b/stepmania/src/MessageManager.cpp
index c1d240b1b6..d4ebd99bc3 100644
--- a/stepmania/src/MessageManager.cpp
+++ b/stepmania/src/MessageManager.cpp
@@ -10,6 +10,11 @@ MessageManager*	MESSAGEMAN = NULL;	// global and accessable from anywhere in our
 
 static const CString MessageNames[NUM_MESSAGES] = {
 	"CurrentSongChanged",
+	"CurrentStepsP1Changed",
+	"CurrentStepsP2Changed",
+	"EditStepsTypeChanged",
+	"EditSourceStepsChanged",
+	"EditSourceStepsTypeChanged",
 };
 XToString( Message );
 
@@ -50,12 +55,16 @@ void MessageManager::Unsubscribe( IMessageSubscriber* pSubscriber, Message m )
 	Unsubscribe( pSubscriber, MessageToString(m) );
 }
 
-void MessageManager::Broadcast( const CString& sMessage )
+void MessageManager::Broadcast( const CString& sMessage ) const
 {
-	SubscribersSet& subs = m_MessageToSubscribers[sMessage];
-	FOREACHS_CONST( IMessageSubscriber*, subs, p )
+	map<CString,SubscribersSet>::const_iterator iter = m_MessageToSubscribers.find( sMessage );
+	if( iter == m_MessageToSubscribers.end() )
+		return;
+
+	FOREACHS_CONST( IMessageSubscriber*, iter->second, p )
 	{
-		(*p)->HandleMessage( sMessage );
+		IMessageSubscriber *pSub = *p;
+		pSub->HandleMessage( sMessage );
 	}
 }
 
diff --git a/stepmania/src/MessageManager.h b/stepmania/src/MessageManager.h
index 24898cfb77..2aa04814ea 100644
--- a/stepmania/src/MessageManager.h
+++ b/stepmania/src/MessageManager.h
@@ -17,22 +17,55 @@ struct lua_State;
 enum Message
 {
 	MESSAGE_CURRENT_SONG_CHANGED,
+	MESSAGE_CURRENT_STEPS_P1_CHANGED,
+	MESSAGE_CURRENT_STEPS_P2_CHANGED,
+	MESSAGE_EDIT_STEPS_TYPE_CHANGED,
+	MESSAGE_EDIT_SOURCE_STEPS_CHANGED,
+	MESSAGE_EDIT_SOURCE_STEPS_TYPE_CHANGED,
 	NUM_MESSAGES
 };
 const CString& MessageToString( Message m );
 
-template<class T, Message M>
+template<class T>
+class BroadcastOnChange
+{
+private:
+	Message mSendWhenChanged;
+	T val;
+public:
+	BroadcastOnChange( Message m ) { mSendWhenChanged = m; }
+	const T Get() const { return val; }
+	void Set( T t ) { val = t; MESSAGEMAN->Broadcast( MessageToString(mSendWhenChanged) ); }
+	operator T () const { return val; }
+};
+
+template<class T>
 class BroadcastOnChangePtr
 {
 private:
+	Message mSendWhenChanged;
 	T *val;
 public:
-	const T* Get() { return val; }
-	void Set( T* t ) { val = t; MESSAGEMAN->Broadcast( MessageToString(M) ); }
+	BroadcastOnChangePtr( Message m ) { mSendWhenChanged = m; }
+	const T* Get() const { return val; }
+	void Set( T* t ) { val = t; MESSAGEMAN->Broadcast( MessageToString(mSendWhenChanged) ); }
 	operator T* () const { return val; }
 	T* operator->() const { return val; }
 };
 
+template<class T, int N>
+class BroadcastOnChangePtr1D
+{
+private:
+	Message mSendWhenChanged;
+	T *val[N];
+public:
+	BroadcastOnChangePtr1D( Message m ) { mSendWhenChanged = m; }
+	const T* Get( unsigned i ) const { return val[i]; }
+	void Set( unsigned i, T* t ) { val[i] = t; MESSAGEMAN->Broadcast( MessageToString((Message)(mSendWhenChanged+i)) ); }
+	T* operator[]( unsigned i ) const { return val[i]; }
+};
+
 class MessageManager
 {
 public:
@@ -43,7 +76,7 @@ public:
 	void Subscribe( IMessageSubscriber* pSubscriber, Message m );
 	void Unsubscribe( IMessageSubscriber* pSubscriber, const CString& sMessage );
 	void Unsubscribe( IMessageSubscriber* pSubscriber, Message m );
-	void Broadcast( const CString& sMessage );
+	void Broadcast( const CString& sMessage ) const;
 
 	// Lua
 	void PushSelf( lua_State *L );