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