/* Flags and parameters describing terminal's characteristics. Copyright (C) 1985-1986, 2001-2013 Free Software Foundation, Inc. This file is part of GNU Emacs. GNU Emacs is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. GNU Emacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs. If not, see . */ #include "dispextern.h" /* Each termcap frame points to its own struct tty_output object in the output_data.tty field. The tty_output structure contains the information that is specific to termcap frames. */ struct tty_output { /* The Emacs structure for the tty device this frame is on. */ struct tty_display_info *display_info; /* There is nothing else here at the moment... */ }; enum { TERMCAP_BUFFER_SIZE = 4096 }; /* Parameters that are shared between frames on the same tty device. */ struct tty_display_info { struct tty_display_info *next; /* Chain of all tty devices. */ char *name; /* The name of the device file or 0 if stdin/stdout. */ char *type; /* The type of the tty. */ /* Input/output */ FILE *input; /* The stream to be used for terminal input. NULL if the terminal is suspended. */ FILE *output; /* The stream to be used for terminal output. NULL if the terminal is suspended. */ FILE *termscript; /* If nonzero, send all terminal output characters to this stream also. */ struct emacs_tty *old_tty; /* The initial tty mode bits */ unsigned term_initted : 1; /* 1 if we have been through init_sys_modes. */ int reference_count; /* Number of frames that are on this display. */ struct terminal *terminal; /* Points back to the generic terminal structure. This is sometimes handy. */ /* Info on cursor positioning. */ struct cm *Wcm; /* Redisplay. */ Lisp_Object top_frame; /* The topmost frame on this tty. */ /* The previous frame we displayed on this tty. */ struct frame *previous_frame; int previous_color_mode; /* Information about the range of text currently shown in mouse-face. */ Mouse_HLInfo mouse_highlight; /* Buffer used internally by termcap (see tgetent in the Termcap manual). Only init_tty should use this. */ char termcap_term_buffer[TERMCAP_BUFFER_SIZE]; /* Buffer storing terminal description strings (see tgetstr in the Termcap manual). Only init_tty should use this. */ char termcap_strings_buffer[TERMCAP_BUFFER_SIZE]; /* Strings, numbers and flags taken from the termcap entry. */ const char *TS_ins_line; /* "al" */ const char *TS_ins_multi_lines; /* "AL" (one parameter, # lines to insert) */ const char *TS_bell; /* "bl" */ const char *TS_clr_to_bottom; /* "cd" */ const char *TS_clr_line; /* "ce", clear to end of line */ const char *TS_clr_frame; /* "cl" */ const char *TS_set_scroll_region; /* "cs" (2 params, first line and last line) */ const char *TS_set_scroll_region_1; /* "cS" (4 params: total lines, lines above scroll region, lines below it, total lines again) */ const char *TS_del_char; /* "dc" */ const char *TS_del_multi_chars; /* "DC" (one parameter, # chars to delete) */ const char *TS_del_line; /* "dl" */ const char *TS_del_multi_lines; /* "DL" (one parameter, # lines to delete) */ const char *TS_delete_mode; /* "dm", enter character-delete mode */ const char *TS_end_delete_mode; /* "ed", leave character-delete mode */ const char *TS_end_insert_mode; /* "ei", leave character-insert mode */ const char *TS_ins_char; /* "ic" */ const char *TS_ins_multi_chars; /* "IC" (one parameter, # chars to insert) */ const char *TS_insert_mode; /* "im", enter character-insert mode */ const char *TS_pad_inserted_char; /* "ip". Just padding, no commands. */ const char *TS_end_keypad_mode; /* "ke" */ const char *TS_keypad_mode; /* "ks" */ const char *TS_pad_char; /* "pc", char to use as padding */ const char *TS_repeat; /* "rp" (2 params, # times to repeat and character to be repeated) */ const char *TS_end_standout_mode; /* "se" */ const char *TS_fwd_scroll; /* "sf" */ const char *TS_standout_mode; /* "so" */ const char *TS_rev_scroll; /* "sr" */ const char *TS_end_termcap_modes; /* "te" */ const char *TS_termcap_modes; /* "ti" */ const char *TS_visible_bell; /* "vb" */ const char *TS_cursor_normal; /* "ve" */ const char *TS_cursor_visible; /* "vs" */ const char *TS_cursor_invisible; /* "vi" */ const char *TS_set_window; /* "wi" (4 params, start and end of window, each as vpos and hpos) */ const char *TS_enter_bold_mode; /* "md" -- turn on bold (extra bright mode). */ const char *TS_enter_italic_mode; /* "ZH" -- turn on italics mode. */ const char *TS_enter_dim_mode; /* "mh" -- turn on half-bright mode. */ const char *TS_enter_reverse_mode; /* "mr" -- enter reverse video mode. */ const char *TS_exit_underline_mode; /* "us" -- start underlining. */ const char *TS_enter_underline_mode; /* "ue" -- end underlining. */ /* "as"/"ae" -- start/end alternate character set. Not really supported, yet. */ const char *TS_enter_alt_charset_mode; const char *TS_exit_alt_charset_mode; const char *TS_exit_attribute_mode; /* "me" -- switch appearances off. */ /* Value of the "NC" (no_color_video) capability, or 0 if not present. */ int TN_no_color_video; int TN_max_colors; /* "Co" -- number of colors. */ /* "pa" -- max. number of color pairs on screen. Not handled yet. Could be a problem if not equal to TN_max_colors * TN_max_colors. */ int TN_max_pairs; /* "op" -- SVr4 set default pair to its original value. */ const char *TS_orig_pair; /* "AF"/"AB" or "Sf"/"Sb"-- set ANSI or SVr4 foreground/background color. 1 param, the color index. */ const char *TS_set_foreground; const char *TS_set_background; int TF_hazeltine; /* termcap hz flag. */ int TF_insmode_motion; /* termcap mi flag: can move while in insert mode. */ int TF_standout_motion; /* termcap mi flag: can move while in standout mode. */ int TF_underscore; /* termcap ul flag: _ underlines if over-struck on non-blank position. Must clear before writing _. */ int TF_teleray; /* termcap xt flag: many weird consequences. For t1061. */ int RPov; /* # chars to start a TS_repeat */ unsigned delete_in_insert_mode : 1; /* delete mode == insert mode */ unsigned costs_set : 1; /* Nonzero if costs have been calculated. */ unsigned insert_mode : 1; /* Nonzero when in insert mode. */ unsigned standout_mode : 1; /* Nonzero when in standout mode. */ /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ int meta_key; /* Size of window specified by higher levels. This is the number of lines, from the top of frame downwards, which can participate in insert-line/delete-line operations. Effectively it excludes the bottom frame_lines - specified_window_size lines from those operations. */ int specified_window; /* Flag used in tty_show/hide_cursor. */ unsigned cursor_hidden : 1; /* Nonzero means use ^S/^Q for flow control. */ unsigned flow_control : 1; /* Non-zero means we are displaying a TTY menu on this tty. */ unsigned showing_menu : 1; /* Nonzero means spaces in the text must actually be output; can't just skip over some columns to leave them blank. */ unsigned must_write_spaces : 1; /* Nonzero if TTY can insert and delete lines. */ unsigned line_ins_del_ok : 1; /* Nonzero if TTY can insert and delete chars. */ unsigned char_ins_del_ok : 1; /* Nonzero if TTY supports setting the scroll window. */ unsigned scroll_region_ok : 1; /* Nonzero if TTY remembers lines scrolled off bottom. */ unsigned memory_below_frame : 1; /* Cost of setting the scroll window, measured in characters. */ int scroll_region_cost; }; /* A chain of structures for all tty devices currently in use. */ extern struct tty_display_info *tty_list; #define FRAME_TTY(f) \ (((f)->output_method == output_termcap \ || (f)->output_method == output_msdos_raw) \ ? (f)->terminal->display_info.tty \ : (emacs_abort (), (struct tty_display_info *) 0)) #define CURTTY() FRAME_TTY (SELECTED_FRAME())