# macos.h

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    00001 /* $Id: macos.h 15718 2009-03-15 00:32:18Z rubidium $ */
    00002
    00005 #ifndef MACOS_H
    00006 #define MACOS_H
    00007
    00008 /* It would seem that to ensure backward compability we have to ensure that we have defined MAC_OS_X_VERSION_10_x everywhere */
    00009 #ifndef MAC_OS_X_VERSION_10_3
    00010 #define MAC_OS_X_VERSION_10_3 1030
    00011 #endif
    00012
    00013 #ifndef MAC_OS_X_VERSION_10_4
    00014 #define MAC_OS_X_VERSION_10_4 1040
    00015 #endif
    00016
    00017 #ifndef MAC_OS_X_VERSION_10_5
    00018 #define MAC_OS_X_VERSION_10_5 1050
    00019 #endif
    00020
    00021
    00022 /*
    00023  * Functions to show the popup window
    00024  * use ShowMacDialog when you want to control title, message and text on the button
    00025  * ShowMacAssertDialog is used by assert
    00026  * ShowMacErrorDialog should be used when an unrecoverable error shows up. It only contains the title, which will should tell what went wrong
    00027  * the function then adds text that tells the user to update and then report the bug if it's present in the newest version
    00028  * It also quits in a nice way since we call it when we know something happened that will crash OpenTTD (like a needed pointer turns out to be NULL or similar)
    00029  */
    00030 void ShowMacDialog ( const char *title, const char *message, const char *buttonLabel );
    00031 void ShowMacAssertDialog ( const char *function, const char *file, const int line, const char *expression );
    00032 void ShowMacErrorDialog(const char *error);
    00033
    00034 /* Since MacOS X users will never see an assert unless they started the game from a terminal
    00035  * we're using a custom assert(e) macro. */
    00036 #undef assert
    00037
    00038 #ifdef NDEBUG
    00039 #define assert(e)       ((void)0)
    00040 #else
    00041
    00042 #define assert(e) \
    00043     (__builtin_expect(!(e), 0) ? ShowMacAssertDialog ( __func__, __FILE__, __LINE__, #e ): (void)0 )
    00044 #endif
    00045
    00046
    00047
    00052 long GetMacOSVersionMajor();
    00053
    00058 long GetMacOSVersionMinor();
    00059
    00064 long GetMacOSVersionBugfix();
    00065
    00073 static inline bool MacOSVersionIsAtLeast(long major, long minor, long bugfix)
    00074 {
    00075   long maj = GetMacOSVersionMajor();
    00076   long min = GetMacOSVersionMinor();
    00077   long bf = GetMacOSVersionBugfix();
    00078
    00079   if (maj < major) return false;
    00080   if (maj == major && min < minor) return false;
    00081   if (maj == major && min == minor && bf < bugfix) return false;
    00082
    00083   return true;
    00084 }
    00085
    00086 /*
    00087  * OSX 10.3.9 has blessed us with a signal with unlikable side effects.
    00088  * The most problematic side effect is that it makes OpenTTD 'think' that
    00089  * it's running on 10.4.0 or higher and thus tries to link to functions
    00090  * that are only defined there. So now we'll remove all and any signal
    00091  * handling for OSX < 10.4 and 10.3.9 works as it should at the cost of
    00092  * not giving a useful error when savegame loading goes wrong.
    00093  */
    00094 #define signal(sig, func) (MacOSVersionIsAtLeast(10, 4, 0) ? signal(sig, func) : NULL)
    00095
    00096 #endif /* MACOS_H */