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#ifndef lint
static char sccsid[] = "@(#)textedit.c 15.50 90/05/22";
#endif
/*
* Copyright (c) 1986, 1987, 1988 by Sun Microsystems, Inc.
*/
/*
* This textedit is the envelope that binds various text display and
* editing facilities together.
*/
#include <sys/param.h> /* MAXPATHLEN (include types.h if removed) */
#include <sys/dir.h> /* MAXNAMLEN */
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <strings.h>
#include <X11/X.h>
#include <xview/defaults.h>
#include <xview/font.h>
#include <xview/notice.h>
#include <xview/frame.h>
#include <xview/xview.h>
#include <xview/scrollbar.h>
#include <xview/text.h>
#include <xview/panel.h>
#include <xview/selection.h>
#include <xview/sel_svc.h>
#include <xview/sel_attrs.h>
#ifdef ecd.help
#include <suntool/help.h>
#endif
/*
* The presence of this line caused textedit not to be built
* The function is already defined in the XView libraries
long textsw_store_file();
*/
char *getwd();
#ifndef __linux__
char *sprintf();
#endif
void frame_cmdline_help();
static int off();
static Notify_value mysigproc();
/*
extern Notify_value textedit_event_proc();
*/
static Frame base_frame;
static char current_filename[MAXNAMLEN];
static char current_directory[MAXPATHLEN];
static int handling_signal;
static Textsw textsw;
static char *cmd_name;
static int user_label;
static int caps_lock_on;
static int edited;
static int read_only;
static char cmdline_args[1024];
int PANEL_ITEM_DATA;
static short edit_ic_image[256]={
#include "textedit.icon"
};
static short edit_mask_image[256]={
#include "textedit.mask.icon"
};
/*
* The textedit command line options.
*/
static char *option_names[] = {
"auto_indent", "Ei",
"okay_to_overwrite", "Eo",
"lower_context", "EL",
"margin", "Em",
"multi_click_space", "ES",
"multi_click_timeout", "ET",
"number_of_lines", "En",
"read_only", "Er",
"scratch_window", "Es",
"tab_width", "Et",
"history_limit", "Eu",
"upper_context", "EU",
"checkpoint", "Ec",
"num_cols", "EC",
#ifdef DEBUG
"malloc_debug_level", "Ed",
#endif
0 /* Terminator! */ };
#define OPTION_AUTO_INDENT (1<<0)
#define OPTION_ALWAYS_OVERWRITE (1<<1)
#define OPTION_LOWER_CONTEXT (1<<2)
#define OPTION_MARGIN (1<<3)
#define OPTION_MULTI_CLICK_SPACE (1<<4)
#define OPTION_MULTI_CLICK_TIMEOUT (1<<5)
#define OPTION_NUMBER_OF_LINES (1<<6)
#define OPTION_READ_ONLY (1<<7)
#define OPTION_SCRATCH_WINDOW (1<<8)
#define OPTION_TAB_WIDTH (1<<9)
#define OPTION_UNDO_HISTORY (1<<10)
#define OPTION_UPPER_CONTEXT (1<<11)
#define OPTION_CHECKPOINT_FREQUENCY (1<<12)
#define OPTION_NUM_COLS (1<<13)
#ifdef DEBUG
#define OPTION_MALLOC_DEBUG_LEVEL (1<<14)
#define OPTION_EDIT_LOG_WRAPS_AT (1<<15)
#endif
static die(char *msg1,char *msg2,char *msg3);
#ifdef TEXTEDIT_HELP_STRING
static char *help_msg()
/*
* This routine is required because the help_msg is too big for the
* compiler to accept as a single string token.
*/
{
extern char *calloc();
char *result = calloc(1, 5000);
(void)sprintf(result, "\n\t\tHelp for %s\n%s\n%s\n%s\n",
xv_get(base_frame, FRAME_LABEL),
"Mouse buttons: left is point, middle is adjust, right is menu.\n\
Multi-click is only implemented for point.\n\
Adjust-at-end-char is char-adjust.\n\
CONTROL-select is pending-delete select, e.g. CONTROL-GET is MOVE.\n\
Function keys:",
" L1 STOP L2 is AGAIN\n\
L3 (unused) L4 is UNDO\n\
L5 TOP L6 is PUT\n\
L7 OPEN L8 is GET\n\
L9 (or ^F) is FIND L10 (or ^D) is DELETE\n\
^P is an accelerator for the 'Put, then Get' menu item.\n\
GET with no secondary selection (or ^G) is GET from SHELF.\n\
SHIFTs:",
" SHIFT-back_char/word/line is forward_char/word/line.\n\
SHIFT-TOP is BOTTOM; SHIFT-OPEN is CLOSE.\n\
Menu item notes: Save leaves old file as <file>%\n\
Store writes to selected name, and then edits it.\n\
Startup: \"Text Editor <options> <file>\" is supported.\n\
Options are [where (E<letter>) indicates a short alternative]:\n\
okay_to_overwrite (Eo) [on]\n\
auto_indent (Ei) [off] read_only (Er) [on]\n\
lower_context (EL) <int> scratch_window (Es) <int>\n\
margin (Em) <int> tab_width (Et) <int>\n\
multi_click_space (ES) <int> history_limit (Eu) <int>\n\
multi_click_timeout (ET) <int> upper_context (EU) <int>\n\
number_of_lines (En) <int>\n\
Use defaultsedit to permanently set all of the above (and additional)\n\
options for all text subwindows.\n\
Saving your edits in case of disaster:\n\
If the Text Editor runs wild, send it a SIGHUP to force a Store."
);
return(result);
}
#endif
/*
* Return pointer to longest suffix not beginning with '/'
*/
static char *
base_name(full_name)
char *full_name;
{
extern char *rindex();
register char *temp;
if ((temp = rindex(full_name, '/')) == NULL)
return(full_name);
else
return(temp+1);
}
Notify_value
textedit_load_event_proc(window, event, arg, type)
Xv_opaque window;
Event *event;
Notify_arg arg;
Notify_event_type type;
{
char document_name[4096];
int alert_result;
char *s_p;
if (event_action(event) == ACTION_DRAG_LOAD)
{
if (xv_decode_drop(event, document_name, 4096) == -1)
return(NOTIFY_DONE);
/* display an alert here, asking if the user wants
to have any edits discarded. If they don't,
then abort the load. */
if (edited)
alert_result = (int) notice_prompt(base_frame, &event,
NOTICE_MESSAGE_STRINGS,
"Your file has been edited.",
"Do you wish to discard these edits?",
0,
NOTICE_BUTTON_NO, "Cancel",
NOTICE_BUTTON_YES, "Confirm",
0);
if (!edited || (alert_result == NOTICE_YES))
{
/* clip out any files after the first one. We
don't take multiple file names in textedit. */
s_p = document_name;
while (*s_p && (*s_p != '\t'))
s_p++;
*s_p = NULL;
xv_set(textsw,
TEXTSW_FILE, document_name,
TEXTSW_FIRST, 0,
TEXTSW_INSERTION_POINT, 0,
0);
xv_set(base_frame, FRAME_CLOSED, FALSE, 0);
}
return(NOTIFY_DONE);
}
return notify_next_event_func(window, event, arg, type);
}
static
set_name_frame(textsw_local, attributes)
Textsw textsw_local;
Attr_avlist attributes;
{
char frame_label[50+MAXNAMLEN+MAXPATHLEN];
Icon edit_icon;
char icon_text[sizeof(frame_label)];
char *ptr;
int len, pass_on = 0, repaint = 0;
int was_read_only = read_only;
Attr_avlist attrs;
char *attr_string;
if (handling_signal)
return;
icon_text[0] = '\0';
ptr = icon_text;
for (attrs = attributes; *attrs; attrs = attr_next(attrs)) {
repaint++; /* Assume this attribute needs a repaint. */
switch ((Textsw_action)(*attrs)) {
case TEXTSW_ACTION_CAPS_LOCK:
caps_lock_on = (int)attrs[1];
ATTR_CONSUME(*attrs);
break;
case TEXTSW_ACTION_CHANGED_DIRECTORY:
attr_string = (char *)attrs[1];
switch (attr_string[0]) {
case '/':
(void)strcpy(current_directory, attrs[1]);
break;
case '.':
if (attr_string[1] != '\0')
(void) getwd(current_directory);
break;
case '\0':
break;
default:
(void)strcat(current_directory, "/");
(void)strcat(current_directory, attrs[1]);
break;
}
ATTR_CONSUME(*attrs);
break;
case TEXTSW_ACTION_USING_MEMORY:
(void)strcpy(current_filename, "(NONE)");
(void)strcpy(icon_text, "NO FILE");
edited = read_only = 0;
ATTR_CONSUME(*attrs);
break;
case TEXTSW_ACTION_LOADED_FILE:
(void)strcpy(current_filename, attrs[1]);
edited = read_only = 0;
goto Update_icon_text;
case TEXTSW_ACTION_EDITED_FILE:
edited = 1;
*ptr++ = '>';
Update_icon_text:
len = (strlen(attrs[1]) > sizeof(icon_text) - 2) ?
sizeof(icon_text) - 2 : strlen(attrs[1]);
/* need 1 char for edit/not, 1 for null */
(void)strncpy(ptr, attrs[1], len); ptr[len] = '\0';
(void)strcpy(ptr, base_name(ptr)); /* strip path */
ATTR_CONSUME(*attrs);
break;
default:
pass_on = 1;
repaint--; /* Above assumption was wrong. */
break;
}
}
if (pass_on)
(void)textsw_default_notify(textsw_local, attributes);
if (repaint) {
(void)sprintf(frame_label, "%s Text Editor - %s%s, dir; %s",
(caps_lock_on) ? "[CAPS] " : "",
current_filename,
(was_read_only) ? " (read only)"
: (edited) ? " (edited)" : "",
current_directory);
(void)xv_set(base_frame, FRAME_LABEL, frame_label, 0);
if (icon_text[0] != '\0') {
struct rect text_rect, *icon_rect;
struct pixfont *font;
edit_icon = xv_get(base_frame, FRAME_ICON);
icon_rect = (Rect *) (icon_get(edit_icon, ICON_IMAGE_RECT));
font = (struct pixfont *) (icon_get(edit_icon, ICON_FONT));
ptr = (user_label) ?
(char *) xv_get(edit_icon, XV_LABEL) : icon_text;
/* adjust icon text top/height to match font height */
text_rect.r_height = xv_get(font, FONT_DEFAULT_CHAR_HEIGHT);
text_rect.r_top =
icon_rect->r_height - (text_rect.r_height + 2);
/* center the icon text */
text_rect.r_width = strlen(ptr)*(xv_get(font, FONT_DEFAULT_CHAR_WIDTH));
if (text_rect.r_width > icon_rect->r_width)
text_rect.r_width = icon_rect->r_width;
text_rect.r_left = (icon_rect->r_width-text_rect.r_width)/2;
(void)xv_set(edit_icon,
XV_LABEL, ptr,
ICON_LABEL_RECT, &text_rect,
0);
/* xv_set actually makes a copy of all the icon fields */
(void)xv_set(base_frame, FRAME_ICON, edit_icon, 0);
}
}
}
static void
button_notify_proc(item, event)
Panel_item item;
Event *event;
{
Textsw textsw = (Textsw)xv_get(item, XV_KEY_DATA, PANEL_ITEM_DATA);
Menu menu = (Menu)xv_get(item, PANEL_ITEM_MENU);
Panel p_menu = (Panel)xv_get(menu, MENU_PIN_WINDOW);
Menu_item menu_item;
Menu pullr_menu;
int num_items, i;
xv_set(menu, XV_KEY_DATA, TEXTSW_MENU_DATA_KEY, textsw, 0);
if (p_menu) {
num_items = (int)xv_get(menu, MENU_NITEMS);
for (i = 1; i<= num_items; i++) {
menu_item = (Menu_item)xv_get(menu, MENU_NTH_ITEM, i);
if (menu_item) {
pullr_menu = (Menu)xv_get(menu_item, MENU_PULLRIGHT);
if (pullr_menu) {
xv_set(pullr_menu, XV_KEY_DATA, TEXTSW_MENU_DATA_KEY, textsw, 0);
}
}
}
}
}
static
textsw_split_proc(origview, newview, pos)
Xv_Window origview;
Xv_Window newview;
int pos;
{
notify_interpose_event_func(newview, textedit_load_event_proc, NOTIFY_SAFE);
}
static void
my_frame_help(name)
char *name;
{
frame_cmdline_help(name);
#ifdef TEXTEDIT_HELP_STRING
(void)fprintf(stderr,
"\nFor further information, use the switch -text_help.\n");
#endif
}
#if (defined(STANDALONE) || defined(DEBUG) || defined(GPROF))
main(argc, argv)
int argc;
char **argv;
{
#ifdef GPROF
if (argc > 1 && strcmp(argv[argc-1], "-gprof") == 0) {
moncontrol(1);
/* Pull the -gprof out of argc/v */
argc--;
argv[argc] = (char *)0;
} else {
moncontrol(0);
}
#endif /* GPROF */
textedit_main(argc, argv);
}
#endif /* (defined(STANDALONE) || defined(DEBUG) || defined(GPROF)) */
textedit_main(argc, argv)
int argc;
char **argv;
{
#define GET_INT_ATTR_VAL(var) \
if (argc > 0) {var = (caddr_t) atoi(argv[1]); argc--, argv++;}
extern struct pixfont *pw_pfsysopen();
Icon edit_icon;
Textsw_status status;
int checkpoint = 0;
int margin;
int textswwidth;
int number_of_lines = 0;
int optioncount =
sizeof(option_names)/sizeof(option_names[0]);
struct stat stb;
caddr_t textsw_attrs[ATTR_STANDARD_SIZE];
int attrc = 0;
char *file_to_edit = NULL;
Panel panel;
Panel_item file_panel_item, edit_panel_item, display_panel_item, find_panel_item;
Menu file_panel_menu, edit_panel_menu, display_panel_menu, find_panel_menu;
#ifdef DEBUG
caddr_t edit_log_wraps_at = (caddr_t)TEXTSW_INFINITY;
#endif
Menu_item menu_item;
int num_cols = 0;
int user_set_size = FALSE;
char **argscanner = argv;
Server_image icon_image;
Server_image mask_image;
#define STDERR 2
/*
* Init data
* Implicitely zeroed: caps_lock_on, handling_signal,
* read_only, edited
*/
while (*argscanner)
{
if (!strcmp(*argscanner, "-Ws") ||
!strcmp(*argscanner, "-Ww") ||
!strcmp(*argscanner, "-Wh"))
{
user_set_size = TRUE;
break;
}
argscanner++;
}
xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, 0);
icon_image = xv_create(0, SERVER_IMAGE,
SERVER_IMAGE_BITS, edit_ic_image,
SERVER_IMAGE_DEPTH, 1,
XV_WIDTH, 64,
XV_HEIGHT, 64,
0);
mask_image = xv_create(0, SERVER_IMAGE,
SERVER_IMAGE_BITS, edit_mask_image,
SERVER_IMAGE_DEPTH, 1,
XV_WIDTH, 64,
XV_HEIGHT, 64,
0);
edit_icon= xv_create(0, ICON,
ICON_IMAGE, icon_image,
ICON_MASK_IMAGE, mask_image,
ICON_TRANSPARENT, TRUE,
0);
xv_set(edit_icon,
WIN_CONSUME_EVENTS,
LOC_WINENTER,
LOC_WINEXIT,
LOC_DRAG,
0,
0);
cmd_name = *argv; /* Must be BEFORE calls on die() */
current_filename[0] = '\0';
(void) getwd(current_directory);
/* Error message is placed into current_directory by getwd */
checkpoint =
defaults_get_integer_check("text.checkpointFrequency",
"Text.CheckpointFrequency", 0, 0, (int)TEXTSW_INFINITY);
base_frame = xv_create((Xv_window)NULL, FRAME,
FRAME_NO_CONFIRM, TRUE,
FRAME_ICON, edit_icon,
FRAME_LABEL, "Text Editor",
FRAME_SHOW_LABEL, TRUE,
FRAME_CMDLINE_HELP_PROC, my_frame_help,
#ifdef ecd.help
HELP_DATA, "sunview:textedit",
#endif
0);
/*
* Set icon's font to system font [if user hasn't set icon font],
* but AFTER xv_create has a chance to change it from the
* built-in font.
* If the user supplies a label, use it and don't override
* with our's later.
* Note that we get the icon from the Frame in case user
* over-rides via argc, argv!
*/
edit_icon = xv_get(base_frame, FRAME_ICON);
user_label = (int)xv_get(edit_icon, XV_LABEL);
if (!icon_get(edit_icon, ICON_FONT)) {
(void)icon_set(edit_icon, ICON_FONT, pw_pfsysopen(), 0);
if (!icon_get(edit_icon, ICON_FONT))
die("Cannot get default font.\n", (char *)NULL, (char *)NULL);
(void)xv_set(base_frame, FRAME_ICON, edit_icon, 0);
}
/*
* Pick up command line arguments to modify textsw behavior.
* Notes: FRAME_ARGC_PTR_ARGV above has stripped window flags.
* case OPTION_MARGIN is used to compute WIN_WIDTH.
*/
#ifndef lint
margin = (int)textsw_get_from_defaults(TEXTSW_LEFT_MARGIN);
#endif
argc--; argv++; /* Skip the cmd name */
while ((argc--) && (attrc < ATTR_STANDARD_SIZE)) {
strcat(cmdline_args, argv[0]);
strcat(cmdline_args, " ");
if (argv[0][0] == '-') {
extern int match_in_table();
int option =
match_in_table(&(argv[0][1]), option_names);
if (option < 0 || option >= optioncount) {
die(argv[0], " is not a valid option.\n", (char *)NULL);
}
switch (1<<(option/2)) {
case OPTION_NUMBER_OF_LINES:
if (argc > 0) {
number_of_lines = atoi(argv[1]);
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
argc--, argv++;
}
break;
case OPTION_READ_ONLY:
read_only = 1;
if ((argc > 0) && (argv[1][0] != '-')) {
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
argc--, argv++;
read_only = !off(argv[0]);
file_to_edit = argv[0];
}
break;
case OPTION_AUTO_INDENT:
textsw_attrs[attrc++] = (caddr_t) TEXTSW_AUTO_INDENT;
textsw_attrs[attrc] = (caddr_t) 1;
if ((argc > 0) && (argv[1][0] != '-')) {
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
argc--, argv++;
textsw_attrs[attrc] = (caddr_t) !off(argv[0]);
}
attrc++;
break;
case OPTION_ALWAYS_OVERWRITE:
textsw_attrs[attrc++] =
(caddr_t) TEXTSW_CONFIRM_OVERWRITE;
textsw_attrs[attrc] = (caddr_t) 0;
if ((argc > 0) && (argv[1][0] != '-')) {
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
argc--, argv++;
textsw_attrs[attrc] = (caddr_t) off(argv[0]);
}
attrc++;
break;
#ifdef DEBUG
case OPTION_EDIT_LOG_WRAPS_AT:
GET_INT_ATTR_VAL(edit_log_wraps_at)
break;
#endif
case OPTION_LOWER_CONTEXT:
textsw_attrs[attrc++] = (caddr_t) TEXTSW_LOWER_CONTEXT;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
#ifdef DEBUG
case OPTION_MALLOC_DEBUG_LEVEL:
textsw_attrs[attrc++] =
(caddr_t) TEXTSW_MALLOC_DEBUG_LEVEL;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
#endif
case OPTION_MARGIN:
textsw_attrs[attrc++] =
(caddr_t) TEXTSW_LEFT_MARGIN;
margin = atoi(argv[1]);
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_MULTI_CLICK_SPACE:
textsw_attrs[attrc++] =
(caddr_t) TEXTSW_MULTI_CLICK_SPACE;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_MULTI_CLICK_TIMEOUT:
textsw_attrs[attrc++] =
(caddr_t) TEXTSW_MULTI_CLICK_TIMEOUT;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_TAB_WIDTH:
textsw_attrs[attrc++] = (caddr_t) TEXTSW_TAB_WIDTH;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_UNDO_HISTORY:
textsw_attrs[attrc++] = (caddr_t) TEXTSW_HISTORY_LIMIT;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_UPPER_CONTEXT:
textsw_attrs[attrc++] = (caddr_t) TEXTSW_UPPER_CONTEXT;
GET_INT_ATTR_VAL(textsw_attrs[attrc++])
break;
case OPTION_CHECKPOINT_FREQUENCY:
if (argc > 0) {
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
checkpoint = atoi(argv[1]);
argc--, argv++;
}
break;
case OPTION_NUM_COLS:
if (argc > 0) {
num_cols = atoi(argv[1]);
strcat(cmdline_args, argv[1]);
strcat(cmdline_args, " ");
argc--, argv++;
}
break;
default:
die("Unrecognized command line option.", (char *)NULL, (char *)NULL);
break;
}
} else if (file_to_edit == NULL) {
file_to_edit = argv[0];
} else {
die("Too many files specified.", (char *)NULL, (char *)NULL);
}
argv++;
}
textsw_attrs[attrc] = 0; /* A-V list terminator */
xv_set(base_frame,
WIN_CMD_LINE, cmdline_args,
0);
read_only = (read_only & (file_to_edit != NULL));
#ifdef DEBUG
if (edit_log_wraps_at != (caddr_t)TEXTSW_INFINITY) {
textsw_attrs[attrc++] = (caddr_t) TEXTSW_WRAPAROUND_SIZE;
textsw_attrs[attrc++] = edit_log_wraps_at;
textsw_attrs[attrc] = 0;
}
#endif
if ((file_to_edit != NULL) && (stat(file_to_edit, &stb) < 0))
{
char buf[256];
int fd;
int alert_result;
Event event;
sprintf(buf, "The file '%s' does not exist", file_to_edit);
alert_result = (int) notice_prompt(base_frame, &event,
NOTICE_MESSAGE_STRINGS,
buf,
"Please confirm creation of new",
"file for textedit.",
0,
NOTICE_BUTTON_NO, "Cancel",
NOTICE_BUTTON_YES, "Confirm",
0);
if (alert_result == NOTICE_YES)
if ((fd = creat(file_to_edit, 0777)) == -1)
die("Could not create new file.", (char *)NULL, (char *)NULL);
else
close(fd);
else
exit(0);
}
else if ((file_to_edit != NULL) && (stat(file_to_edit, &stb) == 0))
{
char buf[256];
int fd;
int alert_result;
Event event;
/* see if it was a regular file */
if (!(stb.st_mode & S_IFREG))
{
sprintf(buf, "The file '%s' is not a regular file", file_to_edit);
alert_result = (int) notice_prompt(base_frame, &event,
NOTICE_MESSAGE_STRINGS,
buf,
"Please confirm creation of new",
"file for textedit.",
0,
NOTICE_BUTTON_YES, "Continue",
NOTICE_BUTTON_NO, "Cancel",
0);
if (alert_result == NOTICE_YES)
file_to_edit = NULL;
else
die("no file to edit", NULL, NULL);
}
}
/*
* Create subwindows
*/
panel = xv_create(base_frame, PANEL,
PANEL_LAYOUT, PANEL_HORIZONTAL,
XV_HELP_DATA, "textedit:Panel",
0);
textsw = (Textsw)xv_create(base_frame, TEXTSW,
ATTR_LIST, textsw_attrs,
WIN_IS_CLIENT_PANE,
TEXTSW_STATUS, &status,
TEXTSW_READ_ONLY, read_only,
TEXTSW_FILE, file_to_edit,
TEXTSW_NOTIFY_PROC, set_name_frame,
TEXTSW_CHECKPOINT_FREQUENCY, checkpoint,
XV_HELP_DATA, "textedit:Textsw",
OPENWIN_SPLIT,
OPENWIN_SPLIT_INIT_PROC, textsw_split_proc,
NULL,
0);
if (!user_set_size)
{
xv_set(textsw,
WIN_ROWS, (number_of_lines) ? number_of_lines : 45,
WIN_COLUMNS, (num_cols) ? num_cols : 80,
0);
}
/* force the panel to be some reasonable size, so that the
buttons lay out reasonably. */
xv_set(panel, WIN_WIDTH, 800, 0);
/* Panel item and fitting height here is for performance reason */
/* This way the textsw will not require to readjust the rect */
file_panel_menu = (Menu)xv_get(textsw, TEXTSW_SUBMENU_FILE);
file_panel_item = xv_create(panel, PANEL_BUTTON,
PANEL_LABEL_STRING, "File",
PANEL_ITEM_MENU, file_panel_menu,
XV_HELP_DATA, "textedit:File",
PANEL_NOTIFY_PROC, button_notify_proc,
0);
textswwidth = (int)xv_get(textsw, WIN_WIDTH);
(void)window_fit_height(panel);
xv_set(textsw, WIN_BELOW, panel, 0);
switch (status) {
case TEXTSW_STATUS_CANNOT_OPEN_INPUT:
die("Cannot open file '", file_to_edit, "', exiting!\n");
case TEXTSW_STATUS_OKAY:
if (textsw)
break;
/* else fall through */
default:
die("Cannot create textsw, exiting!\n", (char *)NULL, (char *)NULL);
}
/*
* Setup signal handlers.
*/
(void)notify_set_signal_func(base_frame, mysigproc, SIGINT, NOTIFY_ASYNC);
#if !defined(__linux__) || defined(SIGXCPU)
(void)notify_set_signal_func(base_frame, mysigproc, SIGXCPU, NOTIFY_ASYNC);
#endif
#if !defined(__linux__) || defined(SIGBUS)
(void)notify_set_signal_func(base_frame, mysigproc, SIGBUS, NOTIFY_ASYNC);
#endif
(void)notify_set_signal_func(base_frame, mysigproc, SIGHUP, NOTIFY_ASYNC);
(void)notify_set_signal_func(base_frame, mysigproc, SIGILL, NOTIFY_ASYNC);
(void)notify_set_signal_func(base_frame, mysigproc, SIGSEGV, NOTIFY_ASYNC);
(void)notify_set_signal_func(base_frame, mysigproc, SIGFPE, NOTIFY_ASYNC);
/*
* Install us in tree of windows
*/
PANEL_ITEM_DATA = xv_unique_key();
display_panel_menu = (Menu)xv_get(textsw, TEXTSW_SUBMENU_VIEW);
edit_panel_menu = (Menu)xv_get(textsw, TEXTSW_SUBMENU_EDIT);
find_panel_menu = (Menu)xv_get(textsw, TEXTSW_SUBMENU_FIND);
/* This set has to be done before the other panel items are created */
xv_set(file_panel_item,
XV_KEY_DATA, PANEL_ITEM_DATA, textsw,
0);
display_panel_item = xv_create(panel, PANEL_BUTTON,
PANEL_LABEL_STRING, "View",
PANEL_NOTIFY_PROC, button_notify_proc,
PANEL_ITEM_MENU, display_panel_menu,
XV_HELP_DATA, "textedit:View",
XV_KEY_DATA, PANEL_ITEM_DATA, textsw,
0);
edit_panel_item = xv_create(panel, PANEL_BUTTON,
PANEL_LABEL_STRING, "Edit",
PANEL_NOTIFY_PROC, button_notify_proc,
PANEL_ITEM_MENU, edit_panel_menu,
XV_HELP_DATA, "textedit:Edit",
XV_KEY_DATA, PANEL_ITEM_DATA, textsw,
0);
find_panel_item = xv_create(panel, PANEL_BUTTON,
PANEL_LABEL_STRING, "Find",
PANEL_NOTIFY_PROC, button_notify_proc,
PANEL_ITEM_MENU, find_panel_menu,
XV_HELP_DATA, "textedit:Find",
XV_KEY_DATA, PANEL_ITEM_DATA, textsw,
0);
if (!user_set_size)
{
xv_set(panel, WIN_WIDTH, textswwidth, 0);
(void)window_fit(base_frame);
}
else
{
/* restore the panel width before coming up */
xv_set(panel, WIN_WIDTH, WIN_EXTEND_TO_EDGE, 0);
}
/* set up to catch load events */
notify_interpose_event_func(textsw_first(textsw), textedit_load_event_proc, NOTIFY_SAFE);
notify_interpose_event_func(edit_icon, textedit_load_event_proc, NOTIFY_SAFE);
if (!user_label && file_to_edit)
{
xv_set(edit_icon, XV_LABEL, file_to_edit, 0);
xv_set(base_frame, FRAME_ICON, edit_icon, 0);
}
xv_main_loop(base_frame);
exit(0);
}
/*
* SIGNAL handlers
*/
/* ARGSUSED */
static Notify_value
mysigproc(me, sig, when)
Notify_client me;
int sig;
Notify_signal_mode when;
{
char name_to_use[MAXNAMLEN];
int pid = getpid();
int was_SIGILL = (sig == SIGILL);
#ifndef __linux__
struct sigvec vec;
#else
struct sigaction vec;
#endif
if (handling_signal == 2)
_exit(3);
if (handling_signal++ == 1) {
(void)fprintf(stderr, "Signal catcher called recursively: ");
goto Die;
}
if (sig == SIGINT) {
if (xv_get((Xv_window)(textsw), TEXTSW_MODIFIED)) {
(void)xv_destroy(base_frame); /* It will be vetoed */
handling_signal = 0;
} else {
/* Skip more user confirmation - just die (but cleanly)! */
(void) notify_post_destroy(base_frame, DESTROY_PROCESS_DEATH,
NOTIFY_IMMEDIATE);
(void) notify_stop();
}
return(NOTIFY_DONE);
}
(void)sprintf(name_to_use, "textedit.%d", pid);
(void)fprintf(stderr, "attempting Store to %s ... ", name_to_use);
(void)fflush(stderr);
if (textsw_store_file(textsw, name_to_use, 0, 0) == 0)
goto Done;
#ifdef XVIEW_USE_INSECURE_TMPFILES
/* This is insecure use of /tmp. So we try to save to $HOME and if that
* fails, give up.
*/
/* martin.buck@bigfoot.com */
(void)sprintf(name_to_use, "/usr/tmp/textedit.%d", pid);
(void)fprintf(stderr, "failed!\nAttempting Store to %s ... ", name_to_use);
(void)fflush(stderr);
if (textsw_store_file(textsw, name_to_use, 0, 0) == 0)
goto Done;
(void)sprintf(name_to_use, "/tmp/textedit.%d", pid);
(void)fprintf(stderr, "failed!\nAttempting Store to %s ... ", name_to_use);
(void)fflush(stderr);
#else
(void)sprintf(name_to_use, "%s/textedit.%d", xv_getlogindir(), pid);
(void)fprintf(stderr, "failed!\nAttempting Store to %s ... ", name_to_use);
(void)fflush(stderr);
#endif
if (textsw_store_file(textsw, name_to_use, 0, 0) == 0)
goto Done;
(void)fprintf(stderr, "failed!\nSorry, cannot save your edits: ");
goto Die;
Done:
(void)fprintf(stderr, "finished; ");
Die:
(void)fprintf(stderr, "aborting for post-mortem ...\n");
(void)fflush(stderr);
(void)sigsetmask(0); /* Make sure signals get through */
if (was_SIGILL) {
#ifndef lint
char dummy, *bad_ptr = 0;
/* (void)signal(SIGSEGV, SIG_DFL); /* Make sure 0 deref dumps. */
#ifndef __linux__
vec.sv_handler = SIG_DFL;
vec.sv_mask = vec.sv_onstack = 0;
sigvec(SIGSEGV, &vec, 0);
#else
vec.sa_handler = SIG_DFL;
#if 1
/* martin.buck@bigfoot.com */
sigemptyset(&vec.sa_mask);
#else
vec.sa_mask = 0;
#endif
vec.sa_flags = 0;
/* mbuck@debian.org */
#if 0
vec.sa_restorer = NULL;
#endif
sigaction(SIGSEGV, &vec, (struct sigaction *)0);
#endif
dummy = *bad_ptr;
#endif
} else {
/* (void)signal(SIGILL, SIG_DFL); /* Make sure abort() dumps. */
#ifndef __linux__
vec.sv_handler = SIG_DFL;
vec.sv_mask = vec.sv_onstack = 0;
sigvec(SIGILL, &vec, 0);
#else
vec.sa_handler = SIG_DFL;
#if 1
/* martin.buck@bigfoot.com */
sigemptyset(&vec.sa_mask);
#else
vec.sa_mask = 0;
#endif
vec.sa_flags = 0;
/* mbuck@debian.org */
#if 0
vec.sa_restorer = NULL;
#endif
sigaction(SIGILL, &vec, (struct sigaction *)0);
#endif
abort();
}
return(NOTIFY_DONE);
}
/*
* Misc. utilities
*/
static
die(msg1, msg2, msg3)
char *msg1, *msg2, *msg3;
{
char *dummy = "";
(void)fprintf(stderr, "%s: %s%s%s\n", cmd_name, msg1,
(msg2?msg2:dummy), (msg3?msg3:dummy));
exit(4);
}
static int
off(str)
char *str;
{
return ((strcmp(str, "off") == 0) ||
(strcmp(str, "Off") == 0) ||
(strcmp(str, "OFF") == 0)
);
}
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