mdw@git.distorted.org.uk Git - mup/blob - mup/mupmate/globals.H

   1 #ifndef _GLOBALS_H
   2 #define _GLOBALS_H
   3
   4 // Try to consolidate OS-specific ifdef complicated clauses to this
   5 // header file, so code can use descriptive ifdefs
   6 #if defined(__WIN32) && ! defined(__CYGWIN__)
   7 #define OS_LIKE_WIN32
   8 #endif
   9
  10 #if defined(__linux) || defined(unix)
  11 #define OS_LIKE_UNIX
  12 #endif
  13
  14
  15 // We use a class static method for callbacks which cast their "void * data"
  16 // argument to an instance of the class, and call the class method.
  17 // So we use these macros to enforce consistent usage of that technique.
  18 // Most places will use CALL_BACK. The CALL_BACK_A is only needed in code
  19 // when the object method takes an argument.
  20 // Can't use CALLBACK as single word since under mingw that is already
  21 // defined as something completely different.
  22 #define CALL_BACK_A(classname, cb_name, arg) \
  23         void \
  24         classname::cb_name##_cb(Fl_Widget *, void * data) \
  25         { \
  26                 ((classname *)data)->cb_name(); \
  27         } \
  28         void \
  29         classname::cb_name(arg)
  30 #define CALL_BACK(classname, cb_name) CALL_BACK_A(classname, cb_name, void)
  31
  32 #endif