src/LyXAction.h

   1 // -*- C++ -*-
   2 /**
   3  * \file LyXAction.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 John Levon
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #ifndef LYXACTION_H
  14 #define LYXACTION_H
  15
  16 #include "FuncCode.h"
  17
  18 #include <map>
  19 #include <string>
  20
  21
  22 namespace lyx {
  23
  24 class FuncRequest;
  25 class LyXErr;
  26
  27 /**
  28  * This class is a container for LyX actions. It associates a name to
  29  * most of them and describes some of their properties.
  30  */
  31 class LyXAction {
  32 public:
  33         /// category of an action, used in the Shortcuts dialog
  34         enum func_type {
  35                 Hidden,  //< Not listed for configuration
  36                 Edit,    //< Cursor and mouse movement, copy/paste etc
  37                 Math,    //< Mathematics
  38                 Buffer,  //< Buffer and window related
  39                 Layout,  //< Font, Layout and textclass related
  40                 System,  //< Lyx preference, server etc
  41         };
  42
  43 private:
  44         /// information for an action
  45         struct FuncInfo {
  46                 /// the action name
  47                 std::string name;
  48                 /// the func_attrib values set
  49                 unsigned int attrib;
  50                 /// the category of this func
  51                 func_type type;
  52         };
  53
  54 public:
  55         /// noncopyable
  56         LyXAction(LyXAction const &);
  57         void operator=(LyXAction const &);
  58
  59         /// type for map between a function name and its action
  60         typedef std::map<std::string, FuncCode> func_map;
  61         /// type for map between an action and its info
  62         typedef std::map<FuncCode, FuncInfo> info_map;
  63
  64         /// possible "permissions" for an action
  65         enum func_attrib {
  66                 Noop = 0, //< Nothing special about this func
  67                 ReadOnly = 1, //< Can be used in RO mode (perhaps this should change); no automatic markDirty
  68                 NoBuffer = 2, //< Can be used when there is no document open
  69                 Argument = 4, //< Requires argument
  70                 NoUpdate = 8, //< Does not (usually) require update
  71                 SingleParUpdate = 16, //< Usually only requires this par updated
  72                 AtPoint = 32, //< dispatch first to inset at cursor if there is one
  73         };
  74
  75         LyXAction();
  76
  77         /**
  78          * Returns an pseudoaction from a string
  79          * If you include arguments in func_name, a new pseudoaction
  80          * will be created if needed.
  81          */
  82         FuncRequest lookupFunc(std::string const & func_name) const;
  83
  84         /// Return the name (and argument) associated with the given (pseudo) action
  85         std::string const getActionName(FuncCode action) const;
  86
  87         func_type getActionType(FuncCode action) const;
  88
  89         /// True if the command has `flag' set
  90         bool funcHasFlag(FuncCode action, func_attrib flag) const;
  91
  92         /// iterator across all real actions
  93         typedef func_map::const_iterator const_func_iterator;
  94
  95         /// return an iterator to the start of all real actions
  96         const_func_iterator func_begin() const;
  97
  98         /// return an iterator to the end of all real actions
  99         const_func_iterator func_end() const;
 100
 101 private:
 102         /// populate the action container with our actions
 103         void init();
 104         /// add the given action
 105         void newFunc(FuncCode, std::string const & name, unsigned int attrib, func_type type);
 106
 107         /**
 108          * This is a list of all the LyXFunc names with the
 109          * coresponding action number. It is usually only used by the
 110          * minibuffer or when assigning commands to keys during init.
 111          */
 112         func_map lyx_func_map;
 113
 114         /**
 115          * This is a mapping from action number to an object holding
 116          * info about this action. f.ex. command name (string),
 117          * command attributes (ro)
 118          */
 119         info_map lyx_info_map;
 120 };
 121
 122 LyXErr & operator<<(LyXErr &, FuncCode);
 123
 124 /// singleton instance
 125 extern LyXAction lyxaction;
 126
 127
 128 } // namespace lyx
 129
 130 #endif // LYXACTION_H