home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1986, 1988, 1990, 1991 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 1, 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; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* For Emacs in SunView/Sun-Windows: (supported by Sun Unix v3.2 or greater)
- * Insert a notifier filter-function to convert all useful input
- * to "key" sequences that emacs can understand. See: Emacstool(1).
- *
- * Author: Jeff Peck, Sun Microsystems, Inc. <peck@eng.sun.com>
- *
- * Original Idea: Ian Batten
- * Updated 15-Mar-88, Jeff Peck: set IN_EMACSTOOL, TERM, TERMCAP
- * Updated 10-Sep-88, Jeff Peck: add XVIEW and JLE support
- * Updated 8-Oct-90, Jeff Peck: add Meta-bit for Xview
- * Updated 6-Mar-91, Jeff Peck: Hack to detect -Wt invocation
- * [note, TTYSW limitation means you must Click-To-Type in Openwin]
- * [fixed in OW3 or use local/tty.o]
- * for better results, this should move to using TERMSW.
- * Updated 30-Mar-91, Jeff Peck, et al: Enable using TERMSW (-DTTERM)
- * TERMSW understands point-to-type, even in OW2.
- * Updated 5-Jun-91, Jeff Peck: Meta-key support fixed for OWv3
- * Better event diagnostics for DEBUGEMACSTOOL
- *
- * [note: xvetool should be started with the "-nw" flag for emacs!]
- */
-
- #ifdef XVIEW
- #include <xview/xview.h>
- #include <xview/panel.h>
- #include <xview/attr.h>
- #include <xview/tty.h>
- #include <xview/ttysw.h> /* private defines */
- #include <xview/termsw.h> /* -DTTERM */
- #include <xview/font.h> /* for testing */
- #else
- #include <suntool/sunview.h>
- #include <suntool/tty.h>
- #include <suntool/ttysw.h>
- #endif /* XVIEW */
-
- #ifdef JLE
- # include <locale.h>
- #endif /* JLE */
-
- #include <stdio.h>
- #include <sys/file.h>
-
- #define BUFFER_SIZE 128 /* Size of all the buffers */
-
- /* define WANT_CAPS_LOCK to make f-key T1 (aka F1) behave as CapsLock */
- #define WANT_CAPS_LOCK
- #ifdef WANT_CAPS_LOCK
- int caps_lock; /* toggle indicater for f-key T1 caps lock */
- static char *Caps = "[CAPS] "; /* Caps Lock prefix string */
- #define CAPS_LEN 7 /* strlen (Caps) */
- #endif
-
- static char *mouse_prefix = "\030\000"; /* C-x C-@ */
- static int m_prefix_length = 2; /* mouse_prefix length */
-
- static char *key_prefix = "\030*"; /* C-x * */
- static int k_prefix_length = 2; /* key_prefix length */
-
- #ifdef JLE
- static char *emacs_name = "nemacs"; /* default run command */
- static char *title = "NEmacstool - "; /* initial title */
- #else
- static char *emacs_name = "emacs"; /* default run command */
- static char *title = "Emacstool - "; /* initial title */
- #endif /* JLE */
-
- static char buffer[BUFFER_SIZE]; /* send to ttysw_input */
- static char *bold_name = 0; /* for -bold option */
-
- Frame frame; /* Base frame for system */
-
- #ifndef TTERM
- #define SWTYPE TTY
- Tty tty_win; /* Where emacs is reading */
- #else
- #define SWTYPE TERMSW
- Termsw tty_win; /* Termsw does follow-mouse */
- #endif /* TTERM */
-
- #ifdef XVIEW
- Xv_Window tty_view; /* Where the events are in Xview*/
- #else
- Tty tty_view; /* SunView place filler */
- #endif /* XVIEW */
-
- int font_width, font_height; /* For translating pixels to chars */
- int left_margin = 0; /* default window -- frame offset */
-
- int console_fd = 0; /* for debugging: setenv DEBUGEMACSTOOL */
- FILE *console; /* for debugging: setenv DEBUGEMACSTOOL */
-
- Icon frame_icon;
- /* make an icon_image for the default frame_icon */
- static short default_image[258] =
- {
- #include <images/terminal.icon>
- };
- mpr_static(icon_image, 64, 64, 1, default_image);
-
- /*
- * Assign a value to a set of keys
- */
- int
- button_value (event)
- Event *event;
- {
- int retval = 0;
- /*
- * Code up the current situation:
- *
- * 1 = MS_LEFT;
- * 2 = MS_MIDDLE;
- * 4 = MS_RIGHT;
- * 8 = SHIFT;
- * 16 = CONTROL;
- * 32 = META;
- * 64 = DOUBLE;
- * 128 = UP;
- */
-
- if (MS_LEFT == (event_id (event))) retval = 1;
- if (MS_MIDDLE == (event_id (event))) retval = 2;
- if (MS_RIGHT == (event_id (event))) retval = 4;
-
- if (event_shift_is_down (event)) retval += 8;
- if (event_ctrl_is_down (event)) retval += 16;
- if (event_meta_is_down (event)) retval += 32;
- if (event_is_up (event)) retval += 128;
- return retval;
- }
-
- /*
- * Variables to store the time of the previous mouse event that was
- * sent to emacs.
- *
- * The theory is that to time double clicks while ignoreing UP buttons,
- * we must keep track of the accumulated time.
- *
- * If someone writes a SUN-SET-INPUT-MASK for emacstool,
- * That could be used to selectively disable UP events,
- * and then this cruft wouldn't be necessary.
- */
- static long prev_event_sec = 0;
- static long prev_event_usec = 0;
-
- /*
- * Give the time difference in milliseconds, where one second
- * is considered infinite.
- */
- int
- time_delta (now_sec, now_usec, prev_sec, prev_usec)
- long now_sec, now_usec, prev_sec, prev_usec;
- {
- long sec_delta = now_sec - prev_sec;
- long usec_delta = now_usec - prev_usec;
-
- if (usec_delta < 0) { /* "borrow" a second */
- usec_delta += 1000000;
- --sec_delta;
- }
-
- if (sec_delta >= 10)
- return (9999); /* Infinity */
- else
- return ((sec_delta * 1000) + (usec_delta / 1000));
- }
-
-
- /*
- * Filter function to translate selected input events for emacs
- * Mouse button events become ^X^@(button x-col y-line time-delta) .
- * Function keys: ESC-*{c}{lrt} l,r,t for Left, Right, Top;
- * {c} encodes the keynumber as a character [a-o]
- */
- static Notify_value
- input_event_filter_function (window, event, arg, type)
- #ifdef XVIEW
- Xv_Window window;
- #else /* not XVIEW */
- Window window;
- #endif /* XVIEW */
- Event *event;
- Notify_arg arg;
- Notify_event_type type;
- {
- struct timeval time_stamp;
-
- /* if DEBUGEMACSTOOL is set, printout event information */
- if (console_fd) {
- fprintf(console, "Event: %s%s%c %d %d\n",
- (event_ctrl_is_down(event) ? "C-" : " "),
- (event_meta_is_down(event) ? "M-" : " "),
- (((event_is_button (event)) ? 'M' :
- ((event_is_key_left (event)) ? 'L' :
- ((event_is_key_right (event)) ? 'R' :
- ((event_is_key_top (event)) ? 'T' :
- (((ASCII_FIRST <= event_id(event))
- && (event_id(event) <= ASCII_LAST)) ?
- (((127 & event_id(event)) < 32) ?
- ((127 & event_id(event)) + 64) :
- ((127 & event_id(event)))) : '?')))))),
- event_id(event),
- event_action(event));
- }
- /* UP L1 is the STOP key */
- if (event_id(event) == WIN_STOP) {
- ttysw_input(tty_win, "\007\007\007\007\007\007\007", 7);
- return NOTIFY_IGNORED;
- }
-
- /* UP L5 & L7 is Expose & Open, let them pass to sunview */
- if (event_id(event) == KEY_LEFT(5) || event_id(event) == KEY_LEFT(7))
- if (event_is_up (event))
- return notify_next_event_func (window, event, arg, type);
- else
- return NOTIFY_IGNORED;
-
-
- { /* Do the mouse == button events */
- if (event_is_button (event)) { /* do Mouse Button events */
- time_stamp = event_time (event);
- ttysw_input (tty_win, mouse_prefix, m_prefix_length);
- sprintf (buffer, "(%d %d %d %d)\015",
- button_value (event),
- (event_x (event) - left_margin) / font_width,
- event_y (event) / font_height,
- time_delta (time_stamp.tv_sec, time_stamp.tv_usec,
- prev_event_sec, prev_event_usec)
- );
- ttysw_input (tty_win, buffer, strlen(buffer));
- prev_event_sec = time_stamp.tv_sec;
- prev_event_usec = time_stamp.tv_usec;
- return NOTIFY_IGNORED;
- }
- }
- { /* Do the function key events */
- int d;
- char c = (char) 0;
- if ((event_is_key_left (event)) ?
- ((d = event_id(event) - KEY_LEFT(1) + 'a'), c='l') :
- ((event_is_key_right (event)) ?
- ((d = event_id(event) - KEY_RIGHT(1) + 'a'), c='r') :
- ((event_is_key_top (event)) ?
- ((d = event_id(event) - KEY_TOP(1) + 'a'), c='t') : 0))) {
- if (event_is_up(event)) return NOTIFY_IGNORED;
- if (event_shift_is_down (event)) c = c - 32;
- /* this will give a non-{lrt} for unshifted keys */
- if (event_ctrl_is_down (event)) c = c - 64;
- if (event_meta_is_down (event)) c = c + 128;
- #ifdef WANT_CAPS_LOCK
- /* set a toggle and relabel window so T1 can act like caps-lock */
- if (event_id(event) == KEY_TOP(1)) {
- /* make a frame label with and without CAPS */
- strcpy (buffer, Caps);
- title = &buffer[CAPS_LEN];
- strncpy (title, (char *)window_get (frame, FRAME_LABEL),
- BUFFER_SIZE - CAPS_LEN);
- buffer[BUFFER_SIZE] = (char) 0;
- if (strncmp (title, Caps, CAPS_LEN) == 0)
- title += CAPS_LEN; /* already Caps */
- caps_lock = (caps_lock ? 0 : CAPS_LEN);
- window_set(frame, FRAME_LABEL, (title -= caps_lock), 0);
- return NOTIFY_IGNORED;
- }
- #endif /* WANT_CAPS_LOCK */
- ttysw_input (tty_win, key_prefix, k_prefix_length);
- sprintf (buffer, "%c%c", d, c);
- ttysw_input(tty_win, buffer, strlen(buffer));
-
- return NOTIFY_IGNORED;
- }
- }
-
- /* handle ascii keyboard events
- * extract "event_is_ascii(event)" from the event_id, not the event_action
- */
- if ((ASCII_FIRST <= event_id(event)) && (event_id(event) <= ASCII_LAST)) {
- /* ignore key-up events (button events have already been handled) */
- if (event_is_up(event)) return NOTIFY_IGNORED;
- #ifdef WANT_CAPS_LOCK
- /* shift alpha chars to upper case if toggle is set */
- if ((caps_lock) && (event_id(event) >= 'a') && (event_id(event) <= 'z'))
- event_set_id(event, (event_id(event) - 32));
- #endif /* WANT_CAPS_LOCK */
-
- #ifndef NO_META_BIT
- /* under Openwindows/X, the meta bit is not set in the key event,
- * emacs expects this so we add it in here:
- */
- if (event_meta_is_down(event))
- event_set_id(event, 128 | event_id(event));
- #endif /* NO_META_BIT */
- }
- return notify_next_event_func (window, event, arg, type);
- }
-
- main (argc, argv)
- int argc;
- char **argv;
- {
- int error_code; /* Error codes */
-
- #ifdef JLE
- setlocale(LC_ALL, "");
- #endif /* JLE */
-
- if(getenv("DEBUGEMACSTOOL"))
- console = fdopen (console_fd = open("/dev/console",O_WRONLY), "w");
-
- putenv("IN_EMACSTOOL=t"); /* notify subprocess that it is in emacstool */
-
- if (putenv("TERM=sun") != 0) /* TTY_WIN will be a TERM=sun window */
- {fprintf (stderr, "%s: Could not set TERM=sun, using `%s'\n",
- argv[0], (char *)getenv("TERM")) ;};
- /*
- * If TERMCAP starts with a slash, it is the pathname of the
- * termcap file, not an entry extracted from it, so KEEP it!
- * Otherwise, it may not relate to the new TERM, so Nuke-It.
- * If there is no TERMCAP environment variable, don't make one.
- */
- {
- char *termcap ; /* Current TERMCAP value */
- termcap = (char *)getenv("TERMCAP") ;
- if (termcap && (*termcap != '/'))
- {
- if (putenv("TERMCAP=") != 0)
- {fprintf (stderr, "%s: Could not clear TERMCAP\n", argv[0]) ;} ;
- } ;
- } ;
-
- /* find command to run as subprocess in window */
- if (!(argv[0] = (char *)getenv("EMACSTOOL"))) /* Set emacs command name */
- argv[0] = emacs_name;
- /* Emacstool recognizes two special args: -rc <file> and -bold <bold-name> */
- for (argc = 1; argv[argc]; argc++) /* Use last one on line */
- {
- if(!(strcmp ("-rc", argv[argc]))) /* Override if -rc given */
- {int i = argc;
- argv[argc--]=0; /* kill the -rc argument */
- if (argv[i+1]) { /* move to argv[0] and squeeze the rest */
- argv[0]=argv[i+1];
- for (; argv[i+2]; (argv[i]=argv[i+2],argv[++i]=0));
- }
- }
-
- if (!(strcmp ("-bold", argv[argc])))
- {int i = argc;
- argv[argc--]=0; /* kill the -bold argument */
- if (argv[i+1]) { /* move to bold_name and squeeze the rest */
- bold_name = argv[i+1];
- for (; argv[i+2]; (argv[i]=argv[i+2],argv[++i]=0));
- }
- }
- };
-
- strcpy (buffer, title);
- strncat (buffer, argv[0], /* append run command name */
- (BUFFER_SIZE - (strlen (buffer)) - (strlen (argv[0]))) - 1);
-
- error_code = interpose_on_window(argc,argv);
- if (error_code != 0) { /* Barf */
- fprintf (stderr, "notify_interpose_event_func returns %d.\n", error_code);
- exit (1);
- }
-
- #ifdef XVIEW
- xv_main_loop (frame); /* And away we go */
- #else
- window_main_loop (frame);
- #endif /* XVIEW */
- }
-
- #ifdef XVIEW
- int interpose_on_window(argc,argv)
- int argc;
- char **argv;
- {
- #ifndef TTERM
- #ifdef FONT_WIDTH_ADJUST
- int i, font_width_adjust = 1; /* hackery, and hueristics */
- /* If -Wt is not supplied, OWv2 font defaults as lucidasans-12 (width=8)
- * rather than the lucidasanstypewriter (width=7) actually used by ttysw.
- * This hack attempts to workaround it.
- */
- for (i = 1; argv[i]; i++) {
- if (!(strcmp ("-Wt", argv[i])) || !(strcmp ("-font", argv[i])))
- {font_width_adjust = 0;
- if (console_fd) fprintf(console, "-Wt = %d\n", font_width_adjust);
- break;}
- }
- #endif /* FONT_WIDTH_ADJUST */
- #endif /* not TTERM */
- /* initialize Xview, and strip window args */
- xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, 0);
-
- /* do this first, so arglist can override it */
- frame_icon = icon_create (ICON_LABEL, "Emacstool",
- ICON_IMAGE, &icon_image,
- 0);
-
- /* Build a frame to run in */
- frame = xv_create ((Xv_Window)NULL, FRAME,
- FRAME_LABEL, buffer,
- FRAME_ICON, frame_icon,
- 0);
-
- /* Create a tty with emacs in it */
- tty_win = xv_create (frame, SWTYPE, WIN_IS_CLIENT_PANE,
- TTY_QUIT_ON_CHILD_DEATH, TRUE,
- TTY_BOLDSTYLE, TTYSW_BOLD_INVERT,
- TTY_ARGV, argv,
- 0);
-
- if (bold_name) {
- (void)xv_set(tty_win, TTY_BOLDSTYLE_NAME, bold_name, 0);
- }
-
- {
- Xv_font font; /* declare temp font variable */
- font = (Xv_font)xv_get (tty_win, XV_FONT);
- font_height = (int)xv_get (font, FONT_DEFAULT_CHAR_HEIGHT);
- font_width = (int)xv_get (font, FONT_DEFAULT_CHAR_WIDTH);
- }
- if (console_fd) fprintf(console, "Width = %d\n", font_width);
-
- #ifndef TTERM
- #ifdef FONT_WIDTH_ADJUST
- font_width -= font_width_adjust; /* A guess! font cache bug in ttysw*/
- #endif /* FONT_WIDTH_ADJUST */
- #else
- /* make the termsw act as a tty */
- xv_set(tty_win, TERMSW_MODE, TTYSW_MODE_TYPE, 0);
- /* termsw has variable offset depending on scrollbar size/location */
- left_margin = (int)xv_get (tty_win, TEXTSW_LEFT_MARGIN);
- #endif /* TTERM */
-
- tty_view = (Xv_Window) xv_get (tty_win, OPENWIN_NTH_VIEW, 0);
- xv_set(tty_view,
- WIN_CONSUME_EVENTS,
- WIN_MOUSE_BUTTONS, WIN_UP_EVENTS,
- ACTION_ADJUST, ACTION_MENU,
- WIN_ASCII_EVENTS,
- WIN_LEFT_KEYS, WIN_TOP_KEYS, WIN_RIGHT_KEYS,
- 0,
- 0);
- /* Interpose my event function */
- return (int) notify_interpose_event_func
- (tty_view, input_event_filter_function, NOTIFY_SAFE);
- }
- #else /* not XVIEW */
- int interpose_on_window (argc, argv)
- int argc;
- char **argv;
- {
- /* do this first, so arglist can override it */
- frame_icon = icon_create (ICON_LABEL, "Emacstool",
- ICON_IMAGE, &icon_image,
- 0);
-
- /* Build a frame to run in */
- frame = window_create ((Window)NULL, FRAME,
- FRAME_LABEL, buffer,
- FRAME_ICON, frame_icon,
- FRAME_ARGC_PTR_ARGV, &argc, argv,
- 0);
-
- /* Create a tty with emacs in it */
- tty_win = window_create (frame, TTY,
- TTY_QUIT_ON_CHILD_DEATH, TRUE,
- TTY_BOLDSTYLE, TTYSW_BOLD_INVERT,
- TTY_ARGV, argv,
- 0);
-
- if (bold_name) {
- (void)window_set(tty_win, TTY_BOLDSTYLE_NAME, bold_name, 0);
- }
-
- /* ttysw uses pf_default, one must set WIN_FONT explicitly */
- window_set (tty_win, WIN_FONT, pf_default(), 0);
- font_height = (int)window_get (tty_win, WIN_ROW_HEIGHT);
- font_width = (int)window_get (tty_win, WIN_COLUMN_WIDTH);
-
- tty_view = tty_win;
- window_set(tty_view,
- WIN_CONSUME_PICK_EVENTS,
- WIN_STOP,
- WIN_MOUSE_BUTTONS, WIN_UP_EVENTS,
- /* LOC_WINENTER, LOC_WINEXIT, LOC_MOVE, */
- 0,
- WIN_CONSUME_KBD_EVENTS,
- WIN_STOP,
- WIN_ASCII_EVENTS,
- WIN_LEFT_KEYS, WIN_TOP_KEYS, WIN_RIGHT_KEYS,
- /* WIN_UP_ASCII_EVENTS, */
- 0,
- 0);
- /* Interpose my event function */
- return (int) notify_interpose_event_func
- (tty_view, input_event_filter_function, NOTIFY_SAFE);
- }
- #endif /* XVIEW */
-