From deca0cc3fa6738ac3d0b1a8b4883a5e08fcb21b3 Mon Sep 17 00:00:00 2001 From: belugas Date: Thu, 22 Mar 2007 03:15:58 +0000 Subject: (svn r9398) -Feature: Allow for a conversion callback system while reading configuration file, in case of wrong value. This is the basic step, no patch setting is actually using it, so far --- src/settings.cpp | 25 ++++++++++++++++--------- src/settings.h | 4 +++- 2 files changed, 19 insertions(+), 10 deletions(-) (limited to 'src') diff --git a/src/settings.cpp b/src/settings.cpp index e7a99ff36..eadaa51f3 100644 --- a/src/settings.cpp +++ b/src/settings.cpp @@ -945,15 +945,22 @@ static void ini_save_setting_list(IniFile *ini, const char *grpname, char **list * If nothing fits you, you can use the GENERAL macros, but it exposes the * internal structure somewhat so it needs a little looking. There are _NULL() * macros as well, these fill up space so you can add more patches there (in - * place) and you DON'T have to increase the savegame version. */ + * place) and you DON'T have to increase the savegame version. + * + * While reading values from openttd.cfg, some values may not be converted + * properly, for any kind of reasons. In order to allow a process of self-cleaning + * mechanism, a callback procedure is made available. You will have to supply the function, which + * will work on a string, one function per patch. And of course, enable the callback param + * on the appropriate macro. + */ -#define NSD_GENERAL(name, def, cmd, guiflags, min, max, interval, many, str, proc)\ - {name, (const void*)(def), {cmd}, {guiflags}, min, max, interval, many, str, proc} +#define NSD_GENERAL(name, def, cmd, guiflags, min, max, interval, many, str, proc, load)\ + {name, (const void*)(def), {cmd}, {guiflags}, min, max, interval, many, str, proc, load} /* Macros for various objects to go in the configuration file. * This section is for global variables */ #define SDTG_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, var, length, def, min, max, interval, full, str, proc, from, to)\ - {NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, proc), SLEG_GENERAL(sle_cmd, var, type | flags, length, from, to)} + {NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, proc, NULL), SLEG_GENERAL(sle_cmd, var, type | flags, length, from, to)} #define SDTG_CONDVAR(name, type, flags, guiflags, var, def, min, max, interval, str, proc, from, to)\ SDTG_GENERAL(name, SDT_NUMX, SL_VAR, type, flags, guiflags, var, 0, def, min, max, interval, NULL, str, proc, from, to) @@ -986,14 +993,14 @@ static void ini_save_setting_list(IniFile *ini, const char *grpname, char **list SDTG_CONDMMANY(name, type, flags, guiflags, var, def, full, str, proc, 0, SL_MAX_VERSION) #define SDTG_CONDNULL(length, from, to)\ - {{"", NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL}, SLEG_CONDNULL(length, from, to)} + {{"", NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL, NULL}, SLEG_CONDNULL(length, from, to)} -#define SDTG_END() {{NULL, NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL}, SLEG_END()} +#define SDTG_END() {{NULL, NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL, NULL}, SLEG_END()} /* Macros for various objects to go in the configuration file. * This section is for structures where their various members are saved */ #define SDT_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, base, var, length, def, min, max, interval, full, str, proc, from, to)\ - {NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, proc), SLE_GENERAL(sle_cmd, base, var, type | flags, length, from, to)} + {NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, proc, NULL), SLE_GENERAL(sle_cmd, base, var, type | flags, length, from, to)} #define SDT_CONDVAR(base, var, type, from, to, flags, guiflags, def, min, max, interval, str, proc)\ SDT_GENERAL(#var, SDT_NUMX, SL_VAR, type, flags, guiflags, base, var, 1, def, min, max, interval, NULL, str, proc, from, to) @@ -1035,9 +1042,9 @@ static void ini_save_setting_list(IniFile *ini, const char *grpname, char **list SDT_CONDMMANY(base, var, type, 0, SL_MAX_VERSION, flags, guiflags, def, full, str, proc) #define SDT_CONDNULL(length, from, to)\ - {{"", NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL}, SLE_CONDNULL(length, from, to)} + {{"", NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL, NULL}, SLE_CONDNULL(length, from, to)} -#define SDT_END() {{NULL, NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL}, SLE_END()} +#define SDT_END() {{NULL, NULL, {0}, {0}, 0, 0, 0, NULL, STR_NULL, NULL, NULL}, SLE_END()} /* Shortcuts for macros below. Logically if we don't save the value * we also don't sync it in a network game */ diff --git a/src/settings.h b/src/settings.h index 3a7523e18..142f4136a 100644 --- a/src/settings.h +++ b/src/settings.h @@ -44,7 +44,8 @@ template <> struct EnumPropsT : MakeEnumPropsT SettingGuiFlag; -typedef int32 OnChange(int32 var); +typedef int32 OnChange(int32 var); ///< callback prototype on data modification +typedef int32 OnConvert(const char *value); ///< callback prototype for convertion error struct SettingDescBase { const char *name; ///< name of the setting. Used in configuration file and for console @@ -56,6 +57,7 @@ struct SettingDescBase { const char *many; ///< ONE/MANY_OF_MANY: string of possible values for this type StringID str; ///< (translated) string with descriptive text; gui and console OnChange *proc; ///< callback procedure for when the value is changed + OnConvert *proc_cnvt; ///< callback procedure when loading value mechanism fails }; struct SettingDesc { -- cgit v1.2.3-70-g09d2