src/LyX.h

   1 // -*- C++ -*-
   2 /**
   3  * \file LyX.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Lars Gullik Bjønnes
   8  * \author Jean-Marc Lasgouttes
   9  * \author John Levon
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #ifndef LYX_H
  15 #define LYX_H
  16
  17 #include "support/strfwd.h"
  18
  19 namespace lyx {
  20
  21 class BufferList;
  22 class CmdDef;
  23 class Converters;
  24 class ErrorItem;
  25 class FuncRequest;
  26 class FuncStatus;
  27 class KeyMap;
  28 class LyXFunc;
  29 class Messages;
  30 class Mover;
  31 class Movers;
  32 class Server;
  33 class ServerSocket;
  34 class Session;
  35 class SpellChecker;
  36
  37 extern bool use_gui;
  38
  39 namespace frontend {
  40 class Application;
  41 class LyXView;
  42 }
  43
  44 namespace graphics {
  45 class Previews;
  46 }
  47
  48 /// initial startup
  49 class LyX {
  50 public:
  51
  52         LyX();
  53         ~LyX();
  54
  55         /// Execute LyX.
  56         int exec(int & argc, char * argv[]);
  57
  58         ///
  59         frontend::LyXView * newLyXView();
  60
  61 private:
  62         /// noncopyable
  63         LyX(LyX const &);
  64         void operator=(LyX const &);
  65
  66         /// Do some cleanup in preparation of an exit.
  67         void prepareExit();
  68
  69         /// Early exit during the initialisation process.
  70         void earlyExit(int status);
  71
  72         /// Initialise LyX and fills-in the vector of files to be loaded.
  73         /**
  74         \return exit code failure if any.
  75         */
  76         int init(int & argc, char * argv[]);
  77
  78         /// Execute batch commands if available.
  79         void execCommands();
  80
  81         /// Load files passed at command-line.
  82         /// return true on success false if we encounter an error
  83         /**
  84         This method is used only in non-GUI mode.
  85         */
  86         bool loadFiles();
  87
  88         /// initial LyX set up
  89         bool init();
  90         /** Check for the existence of the user's support directory and,
  91          *  if not present, create it. Exits the program if the directory
  92          *  cannot be created.
  93          *  \returns true if the user-side configuration script
  94          *  (lib/configure) should be re-run in this directory.
  95          */
  96         bool queryUserLyXDir(bool explicit_userdir);
  97         /// read lyxrc/preferences
  98         bool readRcFile(std::string const & name);
  99         /// read the given languages file
 100         bool readLanguagesFile(std::string const & name);
 101         /// read the encodings.
 102         /// \param enc_name encodings definition file
 103         /// \param symbols_name unicode->LaTeX mapping file
 104         bool readEncodingsFile(std::string const & enc_name,
 105                                std::string const & symbols_name);
 106         /// parsing of non-gui LyX options.
 107         void easyParse(int & argc, char * argv[]);
 108         /// shows up a parsing error on screen
 109         void printError(ErrorItem const &);
 110
 111         ///
 112         Messages & messages(std::string const & language);
 113
 114         /// Use the Pimpl idiom to hide the internals.
 115         // Mostly used for singletons.
 116         struct Impl;
 117         Impl * pimpl_;
 118
 119         /// has this user started lyx for the first time?
 120         bool first_start;
 121
 122         friend FuncStatus getStatus(FuncRequest const & action);
 123         friend void dispatch(FuncRequest const & action);
 124         friend BufferList & theBufferList();
 125         friend LyXFunc & theLyXFunc();
 126         friend Server & theServer();
 127         friend ServerSocket & theServerSocket();
 128         friend Converters & theConverters();
 129         friend Converters & theSystemConverters();
 130         friend Messages & getMessages(std::string const & language);
 131         friend Messages & getGuiMessages();
 132         friend KeyMap & theTopLevelKeymap();
 133         friend Movers & theMovers();
 134         friend Mover const & getMover(std::string  const & fmt);
 135         friend void setMover(std::string const & fmt, std::string const & command);
 136         friend Movers & theSystemMovers();
 137         friend frontend::Application * theApp();
 138         friend graphics::Previews & thePreviews();
 139         friend Session & theSession();
 140         friend CmdDef & theTopLevelCmdDef();
 141         friend SpellChecker * theSpellChecker();
 142         friend void setRcGuiLanguage();
 143         friend void emergencyCleanup();
 144         friend void execBatchCommands();
 145         friend void lyx_exit(int exit_code);
 146 };
 147
 148
 149 /// in the case of failure
 150 void emergencyCleanup();
 151 /// Try to exit LyX properly.
 152 /// \p exit_code is 0 by default, if a non zero value is passed,
 153 /// emergencyCleanup() will be called before exiting.
 154 void lyx_exit(int exit_code);
 155 /// Set the language defined by the user.
 156 void setRcGuiLanguage();
 157 /// Execute batch commands if available.
 158 void execBatchCommands();
 159
 160 } // namespace lyx
 161
 162 #endif // LYX_H
 163