src/FuncStatus.h

   1 // -*- C++ -*-
   2 /**
   3  * \file FuncStatus.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Jean-Marc Lasgouttes
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #ifndef FUNC_STATUS_H
  13 #define FUNC_STATUS_H
  14
  15 #include <string>
  16
  17 /// The status of a function.
  18
  19 class FuncStatus
  20 {
  21 private:
  22
  23         enum StatusCodes {
  24                 /// Command can be executed
  25                 OK = 0,
  26                 /// This command does not exist, possibly because it is not
  27                 /// compiled in (e.g. LFUN_THESAURUS) or the user mistyped
  28                 /// it in the minibuffer. UNKNOWN commands have no menu entry.
  29                 UNKNOWN = 1,
  30                 /// Command cannot be executed
  31                 DISABLED = 2,
  32                 /// Command is on (i. e. the menu item has a checkmark
  33                 /// and the toolbar icon is pushed).
  34                 /// Not all commands use this
  35                 ON = 4,
  36                 /// Command is off (i. e. the menu item has no checkmark
  37                 /// and the toolbar icon is not pushed).
  38                 /// Not all commands use this
  39                 OFF = 8
  40         };
  41
  42         unsigned int v_;
  43
  44         std::string message_;
  45
  46 public:
  47         ///
  48         FuncStatus();
  49         ///
  50         void clear();
  51         ///
  52         void operator|=(FuncStatus const & f);
  53         ///
  54         void unknown(bool b);
  55         ///
  56         bool unknown() const;
  57
  58         ///
  59         void enabled(bool b);
  60         /// tells whether it can be invoked (otherwise it will be grayed-out).
  61         bool enabled() const;
  62
  63         ///
  64         void setOnOff(bool b);
  65         /// tells whether the menu item should have a check mark
  66         /// (or the toolbar icon should be pushed).
  67         bool onoff(bool b) const;
  68
  69         ///
  70         void message(std::string const & m);
  71         ///
  72         std::string const & message() const;
  73 };
  74
  75 #endif