src/script/api/script_log.hpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file script_log.hpp Everything to handle and issue log messages. */
  11
  12 #ifndef SCRIPT_LOG_HPP
  13 #define SCRIPT_LOG_HPP
  14
  15 #include "script_object.hpp"
  16
  17 /**
  18  * Class that handles all log related functions.
  19  * @api ai game
  20  */
  21 class ScriptLog : public ScriptObject {
  22         /* ScriptController needs access to Enum and Log, in order to keep the flow from
  23          *  OpenTTD core to script API clear and simple. */
  24         friend class ScriptController;
  25
  26 public:
  27         /**
  28          * Log levels; The value is also feed to DEBUG() lvl.
  29          *  This has no use for you, as script writer.
  30          * @api -all
  31          */
  32         enum ScriptLogType {
  33                 LOG_SQ_ERROR = 0, ///< Squirrel printed an error.
  34                 LOG_ERROR = 1,    ///< User printed an error.
  35                 LOG_SQ_INFO = 2,  ///< Squirrel printed some info.
  36                 LOG_WARNING = 3,  ///< User printed some warning.
  37                 LOG_INFO = 4,     ///< User printed some info.
  38         };
  39
  40         /**
  41          * Internal representation of the log-data inside the script.
  42          *  This has no use for you, as script writer.
  43          * @api -all
  44          */
  45         struct LogData {
  46                 char **lines;           ///< The log-lines.
  47                 ScriptLog::ScriptLogType *type; ///< Per line, which type of log it was.
  48                 int count;              ///< Total amount of log-lines possible.
  49                 int pos;                ///< Current position in lines.
  50                 int used;               ///< Total amount of used log-lines.
  51         };
  52
  53         /**
  54          * Print an Info message to the logs.
  55          * @param message The message to log.
  56          * @note Special characters such as U+0000-U+0019 and U+E000-U+E1FF are not supported and removed or replaced by a question mark. This includes newlines and tabs.
  57          */
  58         static void Info(const char *message);
  59
  60         /**
  61          * Print a Warning message to the logs.
  62          * @param message The message to log.
  63          * @note Special characters such as U+0000-U+0019 and U+E000-U+E1FF are not supported and removed or replaced by a question mark. This includes newlines and tabs.
  64          */
  65         static void Warning(const char *message);
  66
  67         /**
  68          * Print an Error message to the logs.
  69          * @param message The message to log.
  70          * @note Special characters such as U+0000-U+0019 and U+E000-U+E1FF are not supported and removed or replaced by a question mark. This includes newlines and tabs.
  71          */
  72         static void Error(const char *message);
  73
  74         /**
  75          * Free the log pointer.
  76          * @api -all
  77          */
  78         static void FreeLogPointer();
  79
  80 private:
  81         /**
  82          * Internal command to log the message in a common way.
  83          */
  84         static void Log(ScriptLog::ScriptLogType level, const char *message);
  85 };
  86
  87 #endif /* SCRIPT_LOG_HPP */