roteprivate.h

   1 /*
   2 LICENSE INFORMATION:
   3 This program is free software; you can redistribute it and/or
   4 modify it under the terms of the GNU Lesser General Public
   5 License (LGPL) as published by the Free Software Foundation.
   6
   7 Please refer to the COPYING file for more information.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 General Public License for more details.
  13
  14 You should have received a copy of the GNU Lesser General Public
  15 License along with this program; if not, write to the Free Software
  16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17
  18 Copyright (c) 2004 Bruno T. C. de Oliveira
  19 */
  20
  21
  22 #ifndef btco_ROTE_vtstate_h
  23 #define btco_ROTE_vtstate_h
  24
  25 #define ESEQ_BUF_SIZE 128  /* size of escape sequence buffer */
  26 #define MAX_CUSTOM_ES_HANDLERS 32
  27
  28 /* Terminal private data */
  29 struct RoteTermPrivate_ {
  30    bool escaped;              /* whether we are currently reading an
  31                                * escape sequence */
  32
  33    bool graphmode;            /* whether terminal is in graphical
  34                                * character mode or not */
  35
  36    int scrolltop, scrollbottom;  /* current scrolling region of terminal */
  37    int saved_x, saved_y;         /* saved cursor position */
  38
  39 #ifdef USE_UTF8
  40    unsigned char utf8_buffer[6]; /* the buffer for the utf8 sequence */
  41    size_t utf8_index; /* the byte index of the utf8 buffer */
  42    size_t utf8_length; /* the byte length of the utf8 buffer */
  43 #endif
  44
  45    char esbuf[ESEQ_BUF_SIZE]; /* 0-terminated string. Does NOT include
  46                                * the initial escape (\x1B) character. */
  47    int esbuf_len;             /* length of buffer. The following property
  48                                * is always kept: esbuf[esbuf_len] == '\0' */
  49
  50    int pty;                   /* file descriptor for the pty attached to
  51                                * this terminal. -1 if none. */
  52
  53    /* custom escape sequence handler */
  54    rote_es_handler_t handler;
  55 };
  56
  57 static inline void clear_cell(RoteCell *cell){
  58 #ifdef USE_UTF8
  59    cell->empty = true;
  60    cell->fcount = 1;
  61    cell->findex = 0;
  62 #endif
  63    cell->ch = 0x20;    /* a space */
  64    cell->attr = 0x70;  /* white text, black background */
  65 }
  66
  67 #endif
  68