add MessageBox to ArchHooks to get rid of WIN32 #ifdefs

stepmania/src/arch/ArchHooks/ArchHooks.h

@@ -28,6 +28,11 @@ public:
 	 * and we can safely log and throw. */
 	virtual void DumpDebugInfo() { }
 
+	/* Message box stuff.  Not supported on all archs. */
+	enum MessageBoxResult { abort, retry, ignore };
+	virtual void MessageBoxOK( CString sMessage ) {}
+	virtual MessageBoxResult MessageBoxAbortRetryIgnore( CString sMessage ) { return ignore; } 
+
 	virtual ~ArchHooks() { }
 };
 

stepmania/src/arch/ArchHooks/ArchHooks_Win32.cpp

@@ -34,6 +34,22 @@ void ArchHooks_Win32::DumpDebugInfo()
 	SearchForDebugInfo();
 }
 
+void ArchHooks_Win32::MessageBoxOK( CString sMessage )
+{
+	MessageBox(NULL, sMessage, "StepMania", MB_OK );
+}
+
+ArchHooks::MessageBoxResult ArchHooks_Win32::MessageBoxAbortRetryIgnore( CString sMessage )
+{
+	switch( MessageBox(NULL, sMessage, "StepMania", MB_ABORTRETRYIGNORE ) )
+	{
+	case IDABORT:	return abort;
+	case IDRETRY:	return retry;
+	default:	ASSERT(0);
+	case IDIGNORE:	return ignore;
+	}
+} 
+
 /*
  * Copyright (c) 2002-2003 by the person(s) listed below.  All rights reserved.
  *

stepmania/src/arch/ArchHooks/ArchHooks_Win32.h

@@ -9,6 +9,8 @@ public:
 	void Log(CString str, bool important);
 	void DumpDebugInfo();
 	void AdditionalLog(CString str);
+	void MessageBoxOK( CString sMessage );
+	MessageBoxResult MessageBoxAbortRetryIgnore( CString sMessage );
 };
 
 #undef ARCH_HOOKS