diff options
Diffstat (limited to 'src/termchar.h')
| -rw-r--r-- | src/termchar.h | 203 |
1 files changed, 178 insertions, 25 deletions
diff --git a/src/termchar.h b/src/termchar.h index c4bf2adb0bd..381210fd658 100644 --- a/src/termchar.h +++ b/src/termchar.h @@ -19,32 +19,185 @@ along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ +/* 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. */ -/* extern EMACS_INT baud_rate; */ /* Output speed in baud */ -extern int must_write_spaces; /* Nonzero means spaces in the text - must actually be output; can't just skip - over some columns to leave them blank. */ -extern int min_padding_speed; /* Speed below which no padding necessary */ -extern int fast_clear_end_of_line; /* Nonzero means terminal has - command for this */ - -extern int line_ins_del_ok; /* Terminal can insert and delete lines */ -extern int char_ins_del_ok; /* Terminal can insert and delete chars */ -extern int scroll_region_ok; /* Terminal supports setting the scroll - window */ -extern int scroll_region_cost; /* Cost of setting the scroll window, - measured in characters */ -extern int memory_below_frame; /* Terminal remembers lines scrolled - off bottom */ -extern int fast_clear_end_of_line; /* Terminal has a `ce' string */ - -extern int dont_calculate_costs; /* Nonzero means don't bother computing - various cost tables; we won't use them. */ - -/* Nonzero means no need to redraw the entire frame on resuming - a suspended Emacs. This is useful on terminals with multiple pages, - where one page is used for Emacs and another for all else. */ -extern int no_redraw_on_reenter; +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... */ +}; + +/* 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 */ + + int term_initted; /* 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; + + /* Strings, numbers and flags taken from the termcap entry. */ + + char *TS_ins_line; /* "al" */ + char *TS_ins_multi_lines; /* "AL" (one parameter, # lines to insert) */ + char *TS_bell; /* "bl" */ + char *TS_clr_to_bottom; /* "cd" */ + char *TS_clr_line; /* "ce", clear to end of line */ + char *TS_clr_frame; /* "cl" */ + char *TS_set_scroll_region; /* "cs" (2 params, first line and last line) */ + char *TS_set_scroll_region_1; /* "cS" (4 params: total lines, + lines above scroll region, lines below it, + total lines again) */ + char *TS_del_char; /* "dc" */ + char *TS_del_multi_chars; /* "DC" (one parameter, # chars to delete) */ + char *TS_del_line; /* "dl" */ + char *TS_del_multi_lines; /* "DL" (one parameter, # lines to delete) */ + char *TS_delete_mode; /* "dm", enter character-delete mode */ + char *TS_end_delete_mode; /* "ed", leave character-delete mode */ + char *TS_end_insert_mode; /* "ei", leave character-insert mode */ + char *TS_ins_char; /* "ic" */ + char *TS_ins_multi_chars; /* "IC" (one parameter, # chars to insert) */ + char *TS_insert_mode; /* "im", enter character-insert mode */ + char *TS_pad_inserted_char; /* "ip". Just padding, no commands. */ + char *TS_end_keypad_mode; /* "ke" */ + char *TS_keypad_mode; /* "ks" */ + char *TS_pad_char; /* "pc", char to use as padding */ + char *TS_repeat; /* "rp" (2 params, # times to repeat + and character to be repeated) */ + char *TS_end_standout_mode; /* "se" */ + char *TS_fwd_scroll; /* "sf" */ + char *TS_standout_mode; /* "so" */ + char *TS_rev_scroll; /* "sr" */ + char *TS_end_termcap_modes; /* "te" */ + char *TS_termcap_modes; /* "ti" */ + char *TS_visible_bell; /* "vb" */ + char *TS_cursor_normal; /* "ve" */ + char *TS_cursor_visible; /* "vs" */ + char *TS_cursor_invisible; /* "vi" */ + char *TS_set_window; /* "wi" (4 params, start and end of window, + each as vpos and hpos) */ + + char *TS_enter_bold_mode; /* "md" -- turn on bold (extra bright mode). */ + char *TS_enter_dim_mode; /* "mh" -- turn on half-bright mode. */ + char *TS_enter_blink_mode; /* "mb" -- enter blinking mode. */ + char *TS_enter_reverse_mode; /* "mr" -- enter reverse video mode. */ + char *TS_exit_underline_mode; /* "us" -- start underlining. */ + char *TS_enter_underline_mode; /* "ue" -- end underlining. */ + + /* "as"/"ae" -- start/end alternate character set. Not really + supported, yet. */ + char *TS_enter_alt_charset_mode; + char *TS_exit_alt_charset_mode; + + 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. */ + char *TS_orig_pair; + + /* "AF"/"AB" or "Sf"/"Sb"-- set ANSI or SVr4 foreground/background color. + 1 param, the color index. */ + char *TS_set_foreground; + 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 */ + + int delete_in_insert_mode; /* delete mode == insert mode */ + + int se_is_so; /* 1 if same string both enters and leaves + standout mode */ + + int costs_set; /* Nonzero if costs have been calculated. */ + + int insert_mode; /* Nonzero when in insert mode. */ + int standout_mode; /* 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. */ + + int cursor_hidden; + + /* Nonzero means use ^S/^Q for flow control. */ + int flow_control; + +}; + +/* 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)->terminal->display_info.tty \ + : (abort(), (struct tty_display_info *) 0)) + +#define CURTTY() FRAME_TTY (SELECTED_FRAME()) /* arch-tag: bf9f0d49-842b-42fb-9348-ec8759b27193 (do not change this comment) */ |