src/display.h

   1 /* Copyright (c) 2008, 2009
   2  *      Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
   3  *      Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
   4  *      Micah Cowan (micah@cowan.name)
   5  *      Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
   6  * Copyright (c) 1993-2002, 2003, 2005, 2006, 2007
   7  *      Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
   8  *      Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
   9  * Copyright (c) 1987 Oliver Laumann
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 3, or (at your option)
  14  * any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program (see the file COPYING); if not, see
  23  * http://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
  24  * 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
  25  *
  26  ****************************************************************
  27  * $Id$ GNU
  28  */
  29
  30 #ifndef SCREEN_DISPLAY_H
  31 #define SCREEN_DISPLAY_H
  32
  33 #include "layout.h"
  34 #include "canvas.h"
  35 #include "viewport.h"
  36
  37 #ifdef MAPKEYS
  38
  39 #define KMAP_KEYS (T_OCAPS-T_CAPS)
  40 #define KMAP_AKEYS (T_OCAPS-T_CURSOR)
  41
  42 #define KMAP_NOTIMEOUT 0x4000
  43
  44 struct kmap_ext
  45 {
  46   char *str;
  47   int fl;
  48   struct action um;
  49   struct action dm;
  50   struct action mm;
  51 };
  52
  53 #else
  54
  55 #define KMAP_KEYS 0
  56
  57 #endif
  58
  59 struct win;                     /* forward declaration */
  60
  61 struct display
  62 {
  63   struct display *d_next;       /* linked list */
  64   struct acluser *d_user;       /* user who owns that display */
  65   struct canvas d_canvas;       /* our canvas slice */
  66   struct canvas *d_cvlist;      /* the canvases of this display */
  67   struct canvas *d_forecv;      /* current input focus */
  68   struct layout *d_layout;      /* layout we're using */
  69   void (*d_processinput) __P((char *, int));
  70   char *d_processinputdata;     /* data for processinput */
  71   int d_vpxmin, d_vpxmax;       /* min/max used position on display */
  72   struct win *d_fore;           /* pointer to fore window */
  73   struct win *d_other;          /* pointer to other window */
  74   int   d_nonblock;             /* -1 don't block if obufmax reached */
  75                                 /* >0: block after nonblock secs */
  76   char  d_termname[20 + 1];     /* $TERM */
  77   char  *d_tentry;              /* buffer for tgetstr */
  78   char  d_tcinited;             /* termcap inited flag */
  79   int   d_width, d_height;      /* width/height of the screen */
  80   int   d_defwidth, d_defheight;        /* default width/height of windows */
  81   int   d_top, d_bot;           /* scrollregion start/end */
  82   int   d_x, d_y;               /* cursor position */
  83   struct mchar d_rend;          /* current rendition */
  84   int   d_col16change;          /* the 16col bits changed in attr */
  85   char  d_atyp;                 /* current attribute types */
  86 #ifdef DW_CHARS
  87   int   d_mbcs;                 /* saved char for multibytes charset */
  88 #endif
  89 #ifdef ENCODINGS
  90   int   d_encoding;             /* what encoding type the display is */
  91   int   d_decodestate;          /* state of our decoder */
  92   int   d_realfont;             /* real font of terminal */
  93 #endif
  94   int   d_insert;               /* insert mode flag */
  95   int   d_keypad;               /* application keypad flag */
  96   int   d_cursorkeys;           /* application cursorkeys flag */
  97   int   d_revvid;               /* reverse video */
  98   int   d_curvis;               /* cursor visibility */
  99   int   d_has_hstatus;          /* display has hardstatus line */
 100   int   d_hstatus;              /* hardstatus used */
 101   int   d_lp_missing;           /* last character on bot line missing */
 102   int   d_mouse;                /* mouse mode */
 103   int   d_mousetrack;           /* set when user wants to use mouse even when the window
 104                                    does not */
 105 #ifdef RXVT_OSC
 106   int   d_xtermosc[4];          /* osc used */
 107 #endif
 108   struct mchar d_lpchar;        /* missing char */
 109   struct timeval d_status_time; /* time of status display */
 110   int   d_status;               /* is status displayed? */
 111   char  d_status_bell;          /* is it only a vbell? */
 112   int   d_status_len;           /* length of status line */
 113   char *d_status_lastmsg;       /* last displayed message */
 114   int   d_status_buflen;        /* last message buffer len */
 115   int   d_status_lastx;         /* position of the cursor */
 116   int   d_status_lasty;         /*   before status was displayed */
 117   int   d_status_obuflen;       /* saved obuflen */
 118   int   d_status_obuffree;      /* saved obuffree */
 119   int   d_status_obufpos;       /* end of status position in obuf */
 120   struct event d_statusev;      /* timeout event */
 121   struct event d_hstatusev;     /* hstatus changed event */
 122   int   d_kaablamm;             /* display kaablamm msg */
 123   struct action *d_ESCseen;     /* Was the last char an ESC (^a) */
 124   int   d_userpid;              /* pid of attacher */
 125   char  d_usertty[MAXPATHLEN];  /* tty we are attached to */
 126   int   d_userfd;               /* fd of the tty */
 127   struct event d_readev;        /* userfd read event */
 128   struct event d_writeev;       /* userfd write event */
 129   struct event d_blockedev;     /* blocked timeout */
 130   struct mode d_OldMode;        /* tty mode when screen was started */
 131   struct mode d_NewMode;        /* New tty mode */
 132   int   d_flow;                 /* tty's flow control on/off flag*/
 133   int   d_intrc;                /* current intr when flow is on */
 134   char *d_obuf;                 /* output buffer */
 135   int   d_obuflen;              /* len of buffer */
 136   int   d_obufmax;              /* len where we are blocking the pty */
 137   int   d_obuflenmax;           /* len - max */
 138   char *d_obufp;                /* pointer in buffer */
 139   int   d_obuffree;             /* free bytes in buffer */
 140 #ifdef AUTO_NUKE
 141   int   d_auto_nuke;            /* autonuke flag */
 142 #endif
 143 #ifdef MAPKEYS
 144   int   d_nseqs;                /* number of valid mappings */
 145   int   d_aseqs;                /* number of allocated mappings */
 146   unsigned char  *d_kmaps;      /* keymaps */
 147   unsigned char *d_seqp;        /* pointer into keymap array */
 148   int   d_seql;                 /* number of parsed chars */
 149   unsigned char *d_seqh;        /* last hit */
 150   struct event d_mapev;         /* timeout event */
 151   int   d_dontmap;              /* do not map next */
 152   int   d_mapdefault;           /* do map next to default */
 153 #endif
 154   union tcu d_tcs[T_N];         /* terminal capabilities */
 155   char *d_attrtab[NATTR];       /* attrib emulation table */
 156   char  d_attrtyp[NATTR];       /* attrib group table */
 157   int   d_hascolor;             /* do we support color */
 158   short d_dospeed;              /* baudrate of tty */
 159 #ifdef FONT
 160   char  d_c0_tab[256];          /* conversion for C0 */
 161   char ***d_xtable;             /* char translation table */
 162 #endif
 163   int   d_UPcost, d_DOcost, d_LEcost, d_NDcost;
 164   int   d_CRcost, d_IMcost, d_EIcost, d_NLcost;
 165   int   d_printfd;              /* fd for vt100 print sequence */
 166 #ifdef UTMPOK
 167   slot_t d_loginslot;           /* offset, where utmp_logintty belongs */
 168   struct utmp d_utmp_logintty;  /* here the original utmp structure is stored */
 169   int   d_loginttymode;
 170 # ifdef _SEQUENT_
 171   char  d_loginhost[100+1];
 172 # endif /* _SEQUENT_ */
 173 #endif
 174   int   d_blocked;
 175   int   d_blocked_fuzz;
 176   struct event d_idleev;        /* screen blanker */
 177 #ifdef BLANKER_PRG
 178   int   d_blankerpid;
 179   struct event d_blankerev;
 180 #endif
 181 };
 182
 183 #ifdef MULTI
 184 # define DISPLAY(x) display->x
 185 #else
 186 extern struct display TheDisplay;
 187 # define DISPLAY(x) TheDisplay.x
 188 #endif
 189
 190 #define D_user          DISPLAY(d_user)
 191 #define D_username      (DISPLAY(d_user) ? DISPLAY(d_user)->u_name : 0)
 192 #define D_canvas        DISPLAY(d_canvas)
 193 #define D_cvlist        DISPLAY(d_cvlist)
 194 #define D_layout        DISPLAY(d_layout)
 195 #define D_forecv        DISPLAY(d_forecv)
 196 #define D_processinput  DISPLAY(d_processinput)
 197 #define D_processinputdata      DISPLAY(d_processinputdata)
 198 #define D_vpxmin        DISPLAY(d_vpxmin)
 199 #define D_vpxmax        DISPLAY(d_vpxmax)
 200 #define D_fore          DISPLAY(d_fore)
 201 #define D_other         DISPLAY(d_other)
 202 #define D_nonblock      DISPLAY(d_nonblock)
 203 #define D_termname      DISPLAY(d_termname)
 204 #define D_tentry        DISPLAY(d_tentry)
 205 #define D_tcinited      DISPLAY(d_tcinited)
 206 #define D_width         DISPLAY(d_width)
 207 #define D_height        DISPLAY(d_height)
 208 #define D_defwidth      DISPLAY(d_defwidth)
 209 #define D_defheight     DISPLAY(d_defheight)
 210 #define D_top           DISPLAY(d_top)
 211 #define D_bot           DISPLAY(d_bot)
 212 #define D_x             DISPLAY(d_x)
 213 #define D_y             DISPLAY(d_y)
 214 #define D_rend          DISPLAY(d_rend)
 215 #define D_col16change   DISPLAY(d_col16change)
 216 #define D_atyp          DISPLAY(d_atyp)
 217 #define D_mbcs          DISPLAY(d_mbcs)
 218 #define D_encoding      DISPLAY(d_encoding)
 219 #define D_decodestate   DISPLAY(d_decodestate)
 220 #define D_realfont      DISPLAY(d_realfont)
 221 #define D_insert        DISPLAY(d_insert)
 222 #define D_keypad        DISPLAY(d_keypad)
 223 #define D_cursorkeys    DISPLAY(d_cursorkeys)
 224 #define D_revvid        DISPLAY(d_revvid)
 225 #define D_curvis        DISPLAY(d_curvis)
 226 #define D_has_hstatus   DISPLAY(d_has_hstatus)
 227 #define D_hstatus       DISPLAY(d_hstatus)
 228 #define D_lp_missing    DISPLAY(d_lp_missing)
 229 #define D_mouse         DISPLAY(d_mouse)
 230 #define D_mousetrack    DISPLAY(d_mousetrack)
 231 #define D_xtermosc      DISPLAY(d_xtermosc)
 232 #define D_lpchar        DISPLAY(d_lpchar)
 233 #define D_status        DISPLAY(d_status)
 234 #define D_status_time   DISPLAY(d_status_time)
 235 #define D_status_bell   DISPLAY(d_status_bell)
 236 #define D_status_len    DISPLAY(d_status_len)
 237 #define D_status_lastmsg        DISPLAY(d_status_lastmsg)
 238 #define D_status_buflen DISPLAY(d_status_buflen)
 239 #define D_status_lastx  DISPLAY(d_status_lastx)
 240 #define D_status_lasty  DISPLAY(d_status_lasty)
 241 #define D_status_obuflen        DISPLAY(d_status_obuflen)
 242 #define D_status_obuffree       DISPLAY(d_status_obuffree)
 243 #define D_status_obufpos        DISPLAY(d_status_obufpos)
 244 #define D_statusev      DISPLAY(d_statusev)
 245 #define D_hstatusev     DISPLAY(d_hstatusev)
 246 #define D_kaablamm      DISPLAY(d_kaablamm)
 247 #define D_ESCseen       DISPLAY(d_ESCseen)
 248 #define D_userpid       DISPLAY(d_userpid)
 249 #define D_usertty       DISPLAY(d_usertty)
 250 #define D_userfd        DISPLAY(d_userfd)
 251 #define D_OldMode       DISPLAY(d_OldMode)
 252 #define D_NewMode       DISPLAY(d_NewMode)
 253 #define D_flow          DISPLAY(d_flow)
 254 #define D_intr          DISPLAY(d_intr)
 255 #define D_obuf          DISPLAY(d_obuf)
 256 #define D_obuflen       DISPLAY(d_obuflen)
 257 #define D_obufmax       DISPLAY(d_obufmax)
 258 #define D_obuflenmax    DISPLAY(d_obuflenmax)
 259 #define D_obufp         DISPLAY(d_obufp)
 260 #define D_obuffree      DISPLAY(d_obuffree)
 261 #define D_auto_nuke     DISPLAY(d_auto_nuke)
 262 #define D_nseqs         DISPLAY(d_nseqs)
 263 #define D_aseqs         DISPLAY(d_aseqs)
 264 #define D_seqp          DISPLAY(d_seqp)
 265 #define D_seql          DISPLAY(d_seql)
 266 #define D_seqh          DISPLAY(d_seqh)
 267 #define D_dontmap       DISPLAY(d_dontmap)
 268 #define D_mapdefault    DISPLAY(d_mapdefault)
 269 #define D_kmaps         DISPLAY(d_kmaps)
 270 #define D_tcs           DISPLAY(d_tcs)
 271 #define D_attrtab       DISPLAY(d_attrtab)
 272 #define D_attrtyp       DISPLAY(d_attrtyp)
 273 #define D_hascolor      DISPLAY(d_hascolor)
 274 #define D_dospeed       DISPLAY(d_dospeed)
 275 #define D_c0_tab        DISPLAY(d_c0_tab)
 276 #define D_xtable        DISPLAY(d_xtable)
 277 #define D_UPcost        DISPLAY(d_UPcost)
 278 #define D_DOcost        DISPLAY(d_DOcost)
 279 #define D_LEcost        DISPLAY(d_LEcost)
 280 #define D_NDcost        DISPLAY(d_NDcost)
 281 #define D_CRcost        DISPLAY(d_CRcost)
 282 #define D_IMcost        DISPLAY(d_IMcost)
 283 #define D_EIcost        DISPLAY(d_EIcost)
 284 #define D_NLcost        DISPLAY(d_NLcost)
 285 #define D_printfd       DISPLAY(d_printfd)
 286 #define D_loginslot     DISPLAY(d_loginslot)
 287 #define D_utmp_logintty DISPLAY(d_utmp_logintty)
 288 #define D_loginttymode  DISPLAY(d_loginttymode)
 289 #define D_loginhost     DISPLAY(d_loginhost)
 290 #define D_readev        DISPLAY(d_readev)
 291 #define D_writeev       DISPLAY(d_writeev)
 292 #define D_blockedev     DISPLAY(d_blockedev)
 293 #define D_mapev         DISPLAY(d_mapev)
 294 #define D_blocked       DISPLAY(d_blocked)
 295 #define D_blocked_fuzz  DISPLAY(d_blocked_fuzz)
 296 #define D_idleev        DISPLAY(d_idleev)
 297 #define D_blankerev     DISPLAY(d_blankerev)
 298 #define D_blankerpid    DISPLAY(d_blankerpid)
 299
 300
 301 #define GRAIN 4096      /* Allocation grain size for output buffer */
 302 #define OBUF_MAX 256    /* default for obuflimit */
 303
 304 #define OUTPUT_BLOCK_SIZE 256  /* Block size of output to tty */
 305
 306 #define AddChar(c)              \
 307 do                              \
 308   {                             \
 309     if (--D_obuffree <= 0)      \
 310       Resize_obuf();            \
 311     *D_obufp++ = (c);           \
 312   }                             \
 313 while (0)
 314
 315 #define STATUS_OFF      0
 316 #define STATUS_ON_WIN   1
 317 #define STATUS_ON_HS    2
 318
 319 #define HSTATUS_IGNORE          0
 320 #define HSTATUS_LASTLINE        1
 321 #define HSTATUS_MESSAGE         2
 322 #define HSTATUS_HS              3
 323 #define HSTATUS_ALWAYS          (1<<2)
 324
 325 #endif /* SCREEN_DISPLAY_H */
 326