dselect/bindings.h

   1 /*
   2  * dselect - Debian package maintenance user interface
   3  * bindings.h - keybindings class header file
   4  *
   5  * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
   6  *
   7  * This is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef BINDINGS_H
  22 #define BINDINGS_H
  23
  24 struct keybindings {
  25   struct interpretation;
  26
  27   struct orgbinding {
  28     int key;
  29     const char *action;
  30   };
  31
  32   struct keyname {
  33     int key;
  34     const char *kname;
  35   };
  36
  37   struct description {
  38     const char *action, *desc;
  39   };
  40
  41   struct binding {
  42     binding *next;
  43     int key;
  44     const struct interpretation *interp;
  45     const char *desc;
  46   };
  47
  48  private:
  49   static const keyname keynames[];
  50   static const description descriptions[];
  51
  52   binding *bindings;
  53   const description *iterate;
  54   const interpretation *interps;
  55
  56   bool bind(int key, const char *action);
  57
  58  public:
  59   int name2key(const char *name);
  60   const char *key2name(int key);
  61
  62   bool bind(const char *name, const char *action)
  63   { return bind(name2key(name), action); }
  64   const interpretation *operator()(int key);
  65   const char *find(const char *action);
  66
  67   void describestart() { iterate=descriptions; }
  68   const char **describenext();
  69   //... returns array, null-term, first element is description, rest are key strings
  70   // caller must delete[] the array.  Null means end.
  71
  72   keybindings(const interpretation *ints, const orgbinding *orgbindings);
  73   ~keybindings();
  74 };
  75
  76 #include "pkglist.h"
  77 #include "method.h"
  78
  79 struct keybindings::interpretation {
  80   const char *action;
  81   void (methodlist::*mfn)();
  82   void (packagelist::*pfn)();
  83   quitaction qa;
  84 };
  85
  86 extern const keybindings::interpretation packagelist_kinterps[];
  87 extern const keybindings::orgbinding packagelist_korgbindings[];
  88
  89 extern const keybindings::interpretation methodlist_kinterps[];
  90 extern const keybindings::orgbinding methodlist_korgbindings[];
  91
  92 #ifndef CTRL
  93 #define CTRL(x) ((x) - 'a' + 1)
  94 #endif
  95
  96 #endif /* BINDINGS_H */