[bpt/emacs.git] / lib-src / emacstool.c

/*
   Copyright (C) 1986, 1988, 1990, 1991 Free Software Foundation, Inc.

   This program 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 2, or (at your option)
   any later version.

   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 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 10-Mar-91, Jeff Peck, et al: support for TERMSW (TTERM)
 *	allows point-to-type even in OW2
 *
 * 	[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 indicator 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);
\f
/*
 * 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;
}
\f
/*
 *  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));
}

\f
/*
 * 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
     Window window;
#endif XVIEW
     Event *event;
     Notify_arg arg;
     Notify_event_type type;
{
  struct timeval time_stamp;

  if (console_fd) fprintf(console, "Event: %d\n", event_id(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;

  if (event_is_button (event)) { 	      /* do Mouse Button events */
/* Commented out so that we send mouse up events too.
   if (event_is_up (event)) 
      return notify_next_event_func (window, event, arg, type);
*/
    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
	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;
      }
  }
  if ((event_is_ascii(event) || event_is_meta(event)) 
      && 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_is_ascii(event)
      && (event_id(event) >= 'a') && (event_id(event) <= 'z'))
    event_set_id(event, (event_id(event) - 32));
/* crufty, but it works for now. is there an UPCASE(event)? */
#endif
#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_is_ascii(event) && event_meta_is_down(event))
    event_set_id(event, 128 | event_id(event));
#endif
  return notify_next_event_func (window, event, arg, type);
}
\f
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
    int i, font_width_adjust = 1; /* hackery, and hueristics */
    /* if -Wt is not supplied, then font comes out as lucida-14 (width=8)
     * rather than the screen.r.12 (width=7) typically used
     * this hack attempts to workaround it.
     * could use a env var EMACSTOOL_DEFAULT_FONT_WIDTH instead */
    for (i = 1; argv[i]; i++) {
	if (!(strcmp ("-Wt", argv[i])))
	    {font_width_adjust = 0;
	     if (console_fd) fprintf(console, "-Wt = %d\n", font_width_adjust);
	     break;}
    }
#endif 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
    font_width -= font_width_adjust; /* A guess! font bug in ttysw*/
#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
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
Commit	Line	Data
a2535589	1	/*
91264a4a	2	Copyright (C) 1986, 1988, 1990, 1991 Free Software Foundation, Inc.
3b48c1f4	3
91264a4a DM	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 2, or (at your option)
	7	any later version.
	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
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software
	16	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	17
	18	/*
b92a7437	19	* For Emacs in SunView/Sun-Windows: (supported by Sun Unix v3.2 or greater)
a2535589 JA	20	* Insert a notifier filter-function to convert all useful input
	21	* to "key" sequences that emacs can understand. See: Emacstool(1).
	22	*
b92a7437	23	* Author: Jeff Peck, Sun Microsystems, Inc. <peck@eng.sun.com>
a2535589 JA	24	*
	25	* Original Idea: Ian Batten
	26	* Updated 15-Mar-88, Jeff Peck: set IN_EMACSTOOL, TERM, TERMCAP
b92a7437 JB	27	* Updated 10-Sep-88, Jeff Peck: add XVIEW and JLE support
	28	* Updated 8-Oct-90, Jeff Peck: add Meta-bit for Xview
	29	* Updated 6-Mar-91, Jeff Peck: Hack to detect -Wt invocation
	30	* [note, TTYSW limitation means you must Click-To-Type in Openwin]
	31	* [fixed in OW3 or use local/tty.o]
	32	* for better results, this should move to using TERMSW.
	33	* Updated 10-Mar-91, Jeff Peck, et al: support for TERMSW (TTERM)
	34	* allows point-to-type even in OW2
	35	*
	36	* [note: xvetool should be started with the "-nw" flag for emacs!]
a2535589 JA	37	*/
a2535589 JA	38
b92a7437 JB	39	#ifdef XVIEW
	40	#include <xview/xview.h>
	41	#include <xview/panel.h>
	42	#include <xview/attr.h>
	43	#include <xview/tty.h>
	44	#include <xview/ttysw.h> /* private defines */
	45	#include <xview/termsw.h> /* -DTTERM */
	46	#include <xview/font.h> /* for testing */
	47	#else
a2535589 JA	48	#include <suntool/sunview.h>
a2535589 JA	49	#include <suntool/tty.h>
b92a7437 JB	50	#include <suntool/ttysw.h>
	51	#endif XVIEW
	52
	53	#ifdef JLE
	54	# include <locale.h>
	55	#endif JLE
	56
a2535589 JA	57	#include <stdio.h>
	58	#include <sys/file.h>
	59
	60	#define BUFFER_SIZE 128 /* Size of all the buffers */
	61
	62	/* define WANT_CAPS_LOCK to make f-key T1 (aka F1) behave as CapsLock */
	63	#define WANT_CAPS_LOCK
	64	#ifdef WANT_CAPS_LOCK
eb8c3be9	65	int caps_lock; /* toggle indicator for f-key T1 caps lock */
a2535589 JA	66	static char Caps = "[CAPS] "; / Caps Lock prefix string */
	67	#define CAPS_LEN 7 /* strlen (Caps) */
	68	#endif
	69
	70	static char mouse_prefix = "\030\000"; / C-x C-@ */
	71	static int m_prefix_length = 2; /* mouse_prefix length */
	72
	73	static char key_prefix = "\030"; /* C-x * */
	74	static int k_prefix_length = 2; /* key_prefix length */
	75
b92a7437 JB	76	#ifdef JLE
	77	static char emacs_name = "nemacs"; / default run command */
	78	static char title = "NEmacstool - "; / initial title */
	79	#else
a2535589	80	static char emacs_name = "emacs"; / default run command */
a2535589	81	static char title = "Emacstool - "; / initial title */
b92a7437 JB	82	#endif JLE
	83
	84	static char buffer[BUFFER_SIZE]; /* send to ttysw_input */
	85	static char bold_name = 0; / for -bold option */
a2535589 JA	86
a2535589 JA	87	Frame frame; /* Base frame for system */
b92a7437 JB	88
	89	#ifndef TTERM
	90	#define SWTYPE TTY
	91	Tty tty_win; /* Where emacs is reading */
	92	#else
	93	#define SWTYPE TERMSW
	94	Termsw tty_win; /* Termsw does follow-mouse */
	95	#endif TTERM
	96
	97	#ifdef XVIEW
	98	Xv_Window tty_view; /* Where the events are in Xview*/
	99	#else
	100	Tty tty_view; /* SunView place filler */
	101	#endif XVIEW
	102
a2535589	103	int font_width, font_height; /* For translating pixels to chars */
b92a7437	104	int left_margin = 0; /* default window -- frame offset */
a2535589 JA	105
	106	int console_fd = 0; /* for debugging: setenv DEBUGEMACSTOOL */
	107	FILE console; / for debugging: setenv DEBUGEMACSTOOL */
	108
	109	Icon frame_icon;
	110	/* make an icon_image for the default frame_icon */
	111	static short default_image[258] =
	112	{
	113	#include <images/terminal.icon>
	114	};
	115	mpr_static(icon_image, 64, 64, 1, default_image);
a2535589 JA	116	\f
	117	/*
	118	* Assign a value to a set of keys
	119	*/
	120	int
	121	button_value (event)
	122	Event *event;
	123	{
	124	int retval = 0;
	125	/*
	126	* Code up the current situation:
	127	*
	128	* 1 = MS_LEFT;
	129	* 2 = MS_MIDDLE;
	130	* 4 = MS_RIGHT;
	131	* 8 = SHIFT;
	132	* 16 = CONTROL;
	133	* 32 = META;
	134	* 64 = DOUBLE;
	135	* 128 = UP;
	136	*/
	137
	138	if (MS_LEFT == (event_id (event))) retval = 1;
	139	if (MS_MIDDLE == (event_id (event))) retval = 2;
	140	if (MS_RIGHT == (event_id (event))) retval = 4;
	141
	142	if (event_shift_is_down (event)) retval += 8;
	143	if (event_ctrl_is_down (event)) retval += 16;
	144	if (event_meta_is_down (event)) retval += 32;
	145	if (event_is_up (event)) retval += 128;
	146	return retval;
	147	}
	148	\f
	149	/*
	150	* Variables to store the time of the previous mouse event that was
	151	* sent to emacs.
	152	*
	153	* The theory is that to time double clicks while ignoreing UP buttons,
	154	* we must keep track of the accumulated time.
	155	*
	156	* If someone writes a SUN-SET-INPUT-MASK for emacstool,
	157	* That could be used to selectively disable UP events,
	158	* and then this cruft wouldn't be necessary.
	159	*/
	160	static long prev_event_sec = 0;
	161	static long prev_event_usec = 0;
	162
	163	/*
	164	* Give the time difference in milliseconds, where one second
	165	* is considered infinite.
	166	*/
	167	int
	168	time_delta (now_sec, now_usec, prev_sec, prev_usec)
	169	long now_sec, now_usec, prev_sec, prev_usec;
	170	{
	171	long sec_delta = now_sec - prev_sec;
	172	long usec_delta = now_usec - prev_usec;
	173
	174	if (usec_delta < 0) { /* "borrow" a second */
	175	usec_delta += 1000000;
	176	--sec_delta;
	177	}
	178
	179	if (sec_delta >= 10)
180	return (9999); /* Infinity */
181	else
182	return ((sec_delta * 1000) + (usec_delta / 1000));
183	}
184
185	\f
186	/*
187	* Filter function to translate selected input events for emacs
188	* Mouse button events become ^X^@(button x-col y-line time-delta) .
189	* Function keys: ESC-*{c}{lrt} l,r,t for Left, Right, Top;
190	* {c} encodes the keynumber as a character [a-o]
191	*/
192	static Notify_value
193	input_event_filter_function (window, event, arg, type)
b92a7437 JB	194	#ifdef XVIEW
	195	Xv_Window window;
	196	#else
a2535589	197	Window window;
b92a7437	198	#endif XVIEW
a2535589 JA	199	Event *event;
	200	Notify_arg arg;
	201	Notify_event_type type;
	202	{
	203	struct timeval time_stamp;
	204
	205	if (console_fd) fprintf(console, "Event: %d\n", event_id(event));
	206
	207	/* UP L1 is the STOP key */
	208	if (event_id(event) == WIN_STOP) {
b92a7437	209	ttysw_input(tty_win, "\007\007\007\007\007\007\007", 7);
a2535589 JA	210	return NOTIFY_IGNORED;
	211	}
	212
	213	/* UP L5 & L7 is Expose & Open, let them pass to sunview */
	214	if (event_id(event) == KEY_LEFT(5) \|\| event_id(event) == KEY_LEFT(7))
	215	if(event_is_up (event))
	216	return notify_next_event_func (window, event, arg, type);
	217	else return NOTIFY_IGNORED;
	218
	219	if (event_is_button (event)) { /* do Mouse Button events */
	220	/* Commented out so that we send mouse up events too.
	221	if (event_is_up (event))
	222	return notify_next_event_func (window, event, arg, type);
	223	*/
	224	time_stamp = event_time (event);
b92a7437	225	ttysw_input (tty_win, mouse_prefix, m_prefix_length);
a2535589 JA	226	sprintf (buffer, "(%d %d %d %d)\015",
a2535589 JA	227	button_value (event),
b92a7437	228	(event_x (event) - left_margin) / font_width,
a2535589 JA	229	event_y (event) / font_height,
	230	time_delta (time_stamp.tv_sec, time_stamp.tv_usec,
	231	prev_event_sec, prev_event_usec)
	232	);
b92a7437	233	ttysw_input (tty_win, buffer, strlen(buffer));
a2535589 JA	234	prev_event_sec = time_stamp.tv_sec;
	235	prev_event_usec = time_stamp.tv_usec;
	236	return NOTIFY_IGNORED;
	237	}
	238
	239	{ /* Do the function key events */
	240	int d;
	241	char c = (char) 0;
	242	if ((event_is_key_left (event)) ?
	243	((d = event_id(event) - KEY_LEFT(1) + 'a'), c='l') :
	244	((event_is_key_right (event)) ?
	245	((d = event_id(event) - KEY_RIGHT(1) + 'a'), c='r') :
	246	((event_is_key_top (event)) ?
	247	((d = event_id(event) - KEY_TOP(1) + 'a'), c='t') : 0)))
	248	{
	249	if (event_is_up(event)) return NOTIFY_IGNORED;
	250	if (event_shift_is_down (event)) c = c - 32;
	251	/* this will give a non-{lrt} for unshifted keys */
	252	if (event_ctrl_is_down (event)) c = c - 64;
	253	if (event_meta_is_down (event)) c = c + 128;
	254	#ifdef WANT_CAPS_LOCK
	255	/* set a toggle and relabel window so T1 can act like caps-lock */
	256	if (event_id(event) == KEY_TOP(1))
	257	{
	258	/* make a frame label with and without CAPS */
	259	strcpy (buffer, Caps);
	260	title = &buffer[CAPS_LEN];
	261	strncpy (title, (char *)window_get (frame, FRAME_LABEL),
	262	BUFFER_SIZE - CAPS_LEN);
	263	buffer[BUFFER_SIZE] = (char) 0;
	264	if (strncmp (title, Caps, CAPS_LEN) == 0)
	265	title += CAPS_LEN; /* already Caps */
	266	caps_lock = (caps_lock ? 0 : CAPS_LEN);
	267	window_set(frame, FRAME_LABEL, (title -= caps_lock), 0);
	268	return NOTIFY_IGNORED;
	269	}
	270	#endif
b92a7437	271	ttysw_input (tty_win, key_prefix, k_prefix_length);
a2535589	272	sprintf (buffer, "%c%c", d, c);
b92a7437	273	ttysw_input(tty_win, buffer, strlen(buffer));
a2535589 JA	274
	275	return NOTIFY_IGNORED;
	276	}
	277	}
	278	if ((event_is_ascii(event) \|\| event_is_meta(event))
	279	&& event_is_up(event)) return NOTIFY_IGNORED;
	280	#ifdef WANT_CAPS_LOCK
	281	/* shift alpha chars to upper case if toggle is set */
	282	if ((caps_lock) && event_is_ascii(event)
	283	&& (event_id(event) >= 'a') && (event_id(event) <= 'z'))
	284	event_set_id(event, (event_id(event) - 32));
	285	/* crufty, but it works for now. is there an UPCASE(event)? */
b92a7437 JB	286	#endif
	287	#ifndef NO_META_BIT
	288	/* under Openwindows/X, the meta bit is not set in the key event,
	289	* emacs expects this so we add it in here:
	290	*/
	291	if (event_is_ascii(event) && event_meta_is_down(event))
	292	event_set_id(event, 128 \| event_id(event));
a2535589 JA	293	#endif
	294	return notify_next_event_func (window, event, arg, type);
	295	}
	296	\f
	297	main (argc, argv)
	298	int argc;
	299	char **argv;
	300	{
	301	int error_code; /* Error codes */
	302
b92a7437 JB	303	#ifdef JLE
	304	setlocale(LC_ALL, "");
	305	#endif JLE
	306
a2535589 JA	307	if(getenv("DEBUGEMACSTOOL"))
	308	console = fdopen (console_fd = open("/dev/console",O_WRONLY), "w");
	309
a2535589 JA	310	putenv("IN_EMACSTOOL=t"); /* notify subprocess that it is in emacstool */
a2535589 JA	311
b92a7437	312	if (putenv("TERM=sun") != 0) /* TTY_WIN will be a TERM=sun window */
a2535589 JA	313	{fprintf (stderr, "%s: Could not set TERM=sun, using `%s'\n",
	314	argv[0], (char *)getenv("TERM")) ;};
	315	/*
	316	* If TERMCAP starts with a slash, it is the pathname of the
	317	* termcap file, not an entry extracted from it, so KEEP it!
	318	* Otherwise, it may not relate to the new TERM, so Nuke-It.
	319	* If there is no TERMCAP environment variable, don't make one.
	320	*/
	321	{
	322	char termcap ; / Current TERMCAP value */
	323	termcap = (char *)getenv("TERMCAP") ;
	324	if (termcap && (*termcap != '/'))
	325	{
	326	if (putenv("TERMCAP=") != 0)
	327	{fprintf (stderr, "%s: Could not clear TERMCAP\n", argv[0]) ;} ;
	328	} ;
	329	} ;
	330
	331	/* find command to run as subprocess in window */
b92a7437	332	if (!(argv[0] = (char )getenv("EMACSTOOL"))) / Set emacs command name */
a2535589	333	argv[0] = emacs_name;
b92a7437	334	/* Emacstool recognizes two special args: -rc <file> and -bold <bold-name> */
a2535589	335	for (argc = 1; argv[argc]; argc++) /* Use last one on line */
b92a7437 JB	336	{
	337	if(!(strcmp ("-rc", argv[argc]))) /* Override if -rc given */
	338	{int i = argc;
	339	argv[argc--]=0; /* kill the -rc argument */
	340	if (argv[i+1]) { /* move to argv[0] and squeeze the rest */
	341	argv[0]=argv[i+1];
	342	for (; argv[i+2]; (argv[i]=argv[i+2],argv[++i]=0));
	343	}
	344	}
	345
	346	if (!(strcmp ("-bold", argv[argc])))
	347	{int i = argc;
	348	argv[argc--]=0; /* kill the -bold argument */
	349	if (argv[i+1]) { /* move to bold_name and squeeze the rest */
	350	bold_name = argv[i+1];
	351	for (; argv[i+2]; (argv[i]=argv[i+2],argv[++i]=0));
	352	}
	353	}
	354	};
a2535589 JA	355
	356	strcpy (buffer, title);
	357	strncat (buffer, argv[0], /* append run command name */
	358	(BUFFER_SIZE - (strlen (buffer)) - (strlen (argv[0]))) - 1);
	359
b92a7437 JB	360	error_code = interpose_on_window(argc,argv);
	361	if (error_code != 0) { /* Barf */
	362	fprintf (stderr, "notify_interpose_event_func returns %d.\n", error_code);
	363	exit (1);
	364	}
	365
	366	#ifdef XVIEW
	367	xv_main_loop (frame); /* And away we go */
	368	#else
	369	window_main_loop (frame);
	370	#endif XVIEW
	371	}
a2535589	372
b92a7437 JB	373	#ifdef XVIEW
	374	int interpose_on_window(argc,argv)
	375	int argc;
	376	char **argv;
	377	{
	378	#ifndef TTERM
	379	int i, font_width_adjust = 1; /* hackery, and hueristics */
	380	/* if -Wt is not supplied, then font comes out as lucida-14 (width=8)
	381	* rather than the screen.r.12 (width=7) typically used
	382	* this hack attempts to workaround it.
	383	* could use a env var EMACSTOOL_DEFAULT_FONT_WIDTH instead */
	384	for (i = 1; argv[i]; i++) {
	385	if (!(strcmp ("-Wt", argv[i])))
	386	{font_width_adjust = 0;
	387	if (console_fd) fprintf(console, "-Wt = %d\n", font_width_adjust);
	388	break;}
	389	}
	390	#endif TTERM
	391	/* initialize Xview, and strip window args */
	392	xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, 0);
	393
	394	/* do this first, so arglist can override it */
	395	frame_icon = icon_create (ICON_LABEL, "Emacstool",
	396	ICON_IMAGE, &icon_image,
	397	0);
	398
	399	/* Build a frame to run in */
	400	frame = xv_create ((Xv_Window)NULL, FRAME,
	401	FRAME_LABEL, buffer,
	402	FRAME_ICON, frame_icon,
	403	0);
	404
	405	/* Create a tty with emacs in it */
	406	tty_win = xv_create (frame, SWTYPE, WIN_IS_CLIENT_PANE,
a2535589	407	TTY_QUIT_ON_CHILD_DEATH, TRUE,
b92a7437	408	TTY_BOLDSTYLE, TTYSW_BOLD_INVERT,
a2535589 JA	409	TTY_ARGV, argv,
	410	0);
	411
b92a7437 JB	412	if (bold_name) {
	413	(void)xv_set(tty_win, TTY_BOLDSTYLE_NAME, bold_name, 0);
	414	}
	415
a2535589	416	{
b92a7437 JB	417	Xv_font font; /* declare temp font variable */
	418	font = (Xv_font)xv_get (tty_win, XV_FONT);
	419	font_height = (int)xv_get (font, FONT_DEFAULT_CHAR_HEIGHT);
	420	font_width = (int)xv_get (font, FONT_DEFAULT_CHAR_WIDTH);
	421	}
	422	if (console_fd) fprintf(console, "Width = %d\n", font_width);
	423
	424	#ifndef TTERM
	425	font_width -= font_width_adjust; /* A guess! font bug in ttysw*/
	426	#else
	427	/* make the termsw act as a tty */
	428	xv_set(tty_win, TERMSW_MODE, TTYSW_MODE_TYPE, 0);
	429	/* termsw has variable offset depending on scrollbar size/location */
	430	left_margin = (int)xv_get (tty_win, TEXTSW_LEFT_MARGIN);
	431	#endif TTERM
	432
	433	tty_view = (Xv_Window) xv_get (tty_win, OPENWIN_NTH_VIEW, 0);
	434	xv_set(tty_view,
	435	WIN_CONSUME_EVENTS,
	436	WIN_MOUSE_BUTTONS, WIN_UP_EVENTS,
	437	ACTION_ADJUST, ACTION_MENU,
	438	WIN_ASCII_EVENTS,
	439	WIN_LEFT_KEYS, WIN_TOP_KEYS, WIN_RIGHT_KEYS,
	440	0,
	441	0);
	442	/* Interpose my event function */
	443	return (int) notify_interpose_event_func
	444	(tty_view, input_event_filter_function, NOTIFY_SAFE);
	445	}
	446	#else
	447	int interpose_on_window (argc, argv)
	448	int argc;
	449	char **argv;
	450	{
	451	/* do this first, so arglist can override it */
	452	frame_icon = icon_create (ICON_LABEL, "Emacstool",
	453	ICON_IMAGE, &icon_image,
	454	0);
	455
	456	/* Build a frame to run in */
	457	frame = window_create ((Window)NULL, FRAME,
	458	FRAME_LABEL, buffer,
	459	FRAME_ICON, frame_icon,
	460	FRAME_ARGC_PTR_ARGV, &argc, argv,
	461	0);
	462
	463	/* Create a tty with emacs in it */
	464	tty_win = window_create (frame, TTY,
	465	TTY_QUIT_ON_CHILD_DEATH, TRUE,
	466	TTY_BOLDSTYLE, TTYSW_BOLD_INVERT,
	467	TTY_ARGV, argv,
	468	0);
	469
	470	if (bold_name) {
	471	(void)window_set(tty_win, TTY_BOLDSTYLE_NAME, bold_name, 0);
a2535589 JA	472	}
a2535589 JA	473
b92a7437 JB	474	/* ttysw uses pf_default, one must set WIN_FONT explicitly */
	475	window_set (tty_win, WIN_FONT, pf_default(), 0);
	476	font_height = (int)window_get (tty_win, WIN_ROW_HEIGHT);
	477	font_width = (int)window_get (tty_win, WIN_COLUMN_WIDTH);
	478
	479	tty_view = tty_win;
	480	window_set(tty_view,
	481	WIN_CONSUME_PICK_EVENTS,
	482	WIN_STOP,
	483	WIN_MOUSE_BUTTONS, WIN_UP_EVENTS,
	484	/* LOC_WINENTER, LOC_WINEXIT, LOC_MOVE, */
	485	0,
	486	WIN_CONSUME_KBD_EVENTS,
	487	WIN_STOP,
	488	WIN_ASCII_EVENTS,
	489	WIN_LEFT_KEYS, WIN_TOP_KEYS, WIN_RIGHT_KEYS,
	490	/* WIN_UP_ASCII_EVENTS, */
	491	0,
	492	0);
	493	/* Interpose my event function */
	494	return (int) notify_interpose_event_func
	495	(tty_view, input_event_filter_function, NOTIFY_SAFE);
a2535589	496	}
b92a7437	497	#endif XVIEW