cppconsui/libtermkey/termkey-internal.h

   1 #ifndef GUARD_TERMKEY_INTERNAL_H_
   2 #define GUARD_TERMKEY_INTERNAL_H_
   3
   4 #include "termkey.h"
   5
   6 #include <stdint.h>
   7 #include <termios.h>
   8
   9 struct TermKeyDriver
  10 {
  11   const char      *name;
  12   void          *(*new_driver)(TermKey *tk, const char *term);
  13   void           (*free_driver)(void *info);
  14   int            (*start_driver)(TermKey *tk, void *info);
  15   int            (*stop_driver)(TermKey *tk, void *info);
  16   TermKeyResult (*peekkey)(TermKey *tk, void *info, TermKeyKey *key, int force, size_t *nbytes);
  17 };
  18
  19 struct keyinfo {
  20   TermKeyType type;
  21   TermKeySym sym;
  22   int modifier_mask;
  23   int modifier_set;
  24 };
  25
  26 struct TermKeyDriverNode;
  27 struct TermKeyDriverNode {
  28   struct TermKeyDriver     *driver;
  29   void                      *info;
  30   struct TermKeyDriverNode *next;
  31 };
  32
  33 struct TermKey {
  34   int    fd;
  35   int    flags;
  36   int    canonflags;
  37   unsigned char *buffer;
  38   size_t buffstart; // First offset in buffer
  39   size_t buffcount; // NUMBER of entires valid in buffer
  40   size_t buffsize; // Total malloc'ed size
  41   size_t hightide; /* Position beyond buffstart at which peekkey() should next start
  42                     * normally 0, but see also termkey_interpret_csi */
  43
  44   struct termios restore_termios;
  45   char restore_termios_valid;
  46
  47   int waittime; // msec
  48
  49   char   is_closed;
  50   char   is_started;
  51
  52   int  nkeynames;
  53   const char **keynames;
  54
  55   // There are 32 C0 codes
  56   struct keyinfo c0[32];
  57
  58   struct TermKeyDriverNode *drivers;
  59
  60   // Now some "protected" methods for the driver to call but which we don't
  61   // want exported as real symbols in the library
  62   struct {
  63     void (*emit_codepoint)(TermKey *tk, long codepoint, TermKeyKey *key);
  64     TermKeyResult (*peekkey_simple)(TermKey *tk, TermKeyKey *key, int force, size_t *nbytes);
  65     TermKeyResult (*peekkey_mouse)(TermKey *tk, TermKeyKey *key, size_t *nbytes);
  66   } method;
  67 };
  68
  69 static inline void termkey_key_get_linecol(const TermKeyKey *key, int *line, int *col)
  70 {
  71   if(col)
  72     *col  = (unsigned char)key->code.mouse[1] | ((unsigned char)key->code.mouse[3] & 0x0f) << 8;
  73
  74   if(line)
  75     *line = (unsigned char)key->code.mouse[2] | ((unsigned char)key->code.mouse[3] & 0x70) << 4;
  76 }
  77
  78 static inline void termkey_key_set_linecol(TermKeyKey *key, int line, int col)
  79 {
  80   if(line > 0xfff)
  81     line = 0xfff;
  82
  83   if(col > 0x7ff)
  84     col = 0x7ff;
  85
  86   key->code.mouse[1] = (line & 0x0ff);
  87   key->code.mouse[2] = (col & 0x0ff);
  88   key->code.mouse[3] = (line & 0xf00) >> 8 | (col & 0x300) >> 4;
  89 }
  90
  91 extern struct TermKeyDriver termkey_driver_csi;
  92 extern struct TermKeyDriver termkey_driver_ti;
  93
  94 #endif