lxdialog.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:6k
- /*
- * dialog - Display simple dialog boxes from shell scripts
- *
- * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
- * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- * 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
- * of the License, 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.
- */
- #include "dialog.h"
- static void Usage (const char *name);
- typedef int (jumperFn) (const char *title, int argc, const char * const * argv);
- struct Mode {
- char *name;
- int argmin, argmax, argmod;
- jumperFn *jumper;
- };
- jumperFn j_menu, j_checklist, j_radiolist, j_yesno, j_textbox, j_inputbox;
- jumperFn j_msgbox, j_infobox;
- static struct Mode modes[] =
- {
- {"--menu", 9, 0, 3, j_menu},
- {"--checklist", 9, 0, 3, j_checklist},
- {"--radiolist", 9, 0, 3, j_radiolist},
- {"--yesno", 5,5,1, j_yesno},
- {"--textbox", 5,5,1, j_textbox},
- {"--inputbox", 5, 6, 1, j_inputbox},
- {"--msgbox", 5, 5, 1, j_msgbox},
- {"--infobox", 5, 5, 1, j_infobox},
- {NULL, 0, 0, 0, NULL}
- };
- static struct Mode *modePtr;
- #ifdef LOCALE
- #include <locale.h>
- #endif
- int
- main (int argc, const char * const * argv)
- {
- int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
- const char *title = NULL;
- #ifdef LOCALE
- (void) setlocale (LC_ALL, "");
- #endif
- #ifdef TRACE
- trace(TRACE_CALLS|TRACE_UPDATE);
- #endif
- if (argc < 2) {
- Usage (argv[0]);
- exit (-1);
- }
- while (offset < argc - 1 && !end_common_opts) { /* Common options */
- if (!strcmp (argv[offset + 1], "--title")) {
- if (argc - offset < 3 || title != NULL) {
- Usage (argv[0]);
- exit (-1);
- } else {
- title = argv[offset + 2];
- offset += 2;
- }
- } else if (!strcmp (argv[offset + 1], "--backtitle")) {
- if (backtitle != NULL) {
- Usage (argv[0]);
- exit (-1);
- } else {
- backtitle = argv[offset + 2];
- offset += 2;
- }
- } else if (!strcmp (argv[offset + 1], "--clear")) {
- if (clear_screen) { /* Hey, "--clear" can't appear twice! */
- Usage (argv[0]);
- exit (-1);
- } else if (argc == 2) { /* we only want to clear the screen */
- init_dialog ();
- refresh (); /* init_dialog() will clear the screen for us */
- end_dialog ();
- return 0;
- } else {
- clear_screen = 1;
- offset++;
- }
- } else /* no more common options */
- end_common_opts = 1;
- }
- if (argc - 1 == offset) { /* no more options */
- Usage (argv[0]);
- exit (-1);
- }
- /* use a table to look for the requested mode, to avoid code duplication */
- for (modePtr = modes; modePtr->name; modePtr++) /* look for the mode */
- if (!strcmp (argv[offset + 1], modePtr->name))
- break;
- if (!modePtr->name)
- Usage (argv[0]);
- if (argc - offset < modePtr->argmin)
- Usage (argv[0]);
- if (modePtr->argmax && argc - offset > modePtr->argmax)
- Usage (argv[0]);
- init_dialog ();
- retval = (*(modePtr->jumper)) (title, argc - offset, argv + offset);
- if (clear_screen) { /* clear screen before exit */
- attr_clear (stdscr, LINES, COLS, screen_attr);
- refresh ();
- }
- end_dialog();
- exit (retval);
- }
- /*
- * Print program usage
- */
- static void
- Usage (const char *name)
- {
- fprintf (stderr, "
- ndialog, by Savio Lam (lam836@cs.cuhk.hk).
- n patched by Stuart Herbert (S.Herbert@shef.ac.uk)
- n modified/gutted for use as a Linux kernel config tool by
- n William Roadcap (roadcapw@cfw.com)
- n
- n* Display dialog boxes from shell scripts *
- n
- nUsage: %s --clear
- n %s [--title <title>] [--backtitle <backtitle>] --clear <Box options>
- n
- nBox options:
- n
- n --menu <text> <height> <width> <menu height> <tag1> <item1>...
- n --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...
- n --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...
- n --textbox <file> <height> <width>
- n --inputbox <text> <height> <width> [<init>]
- n --yesno <text> <height> <width>
- n", name, name);
- exit (-1);
- }
- /*
- * These are the program jumpers
- */
- int
- j_menu (const char *t, int ac, const char * const * av)
- {
- return dialog_menu (t, av[2], atoi (av[3]), atoi (av[4]),
- atoi (av[5]), av[6], (ac - 6) / 2, av + 7);
- }
- int
- j_checklist (const char *t, int ac, const char * const * av)
- {
- return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
- atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_CHECK);
- }
- int
- j_radiolist (const char *t, int ac, const char * const * av)
- {
- return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
- atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_RADIO);
- }
- int
- j_textbox (const char *t, int ac, const char * const * av)
- {
- return dialog_textbox (t, av[2], atoi (av[3]), atoi (av[4]));
- }
- int
- j_yesno (const char *t, int ac, const char * const * av)
- {
- return dialog_yesno (t, av[2], atoi (av[3]), atoi (av[4]));
- }
- int
- j_inputbox (const char *t, int ac, const char * const * av)
- {
- int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),
- ac == 6 ? av[5] : (char *) NULL);
- if (ret == 0)
- fprintf(stderr, dialog_input_result);
- return ret;
- }
- int
- j_msgbox (const char *t, int ac, const char * const * av)
- {
- return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 1);
- }
- int
- j_infobox (const char *t, int ac, const char * const * av)
- {
- return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 0);
- }