546 lines
15 KiB
C
546 lines
15 KiB
C
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/*
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* dialog - Display simple dialog boxes from shell scripts
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*
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* AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* HISTORY:
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*
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* 17/12/93 - Version 0.1 released.
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*
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* 19/12/93 - menu will now scroll if there are more items than can fit
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* on the screen.
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* - added 'checklist', a dialog box with a list of options that
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* can be turned on or off. A list of options that are on is
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* returned on exit.
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*
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* 20/12/93 - Version 0.15 released.
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*
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* 29/12/93 - Incorporated patch from Patrick J. Volkerding
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* (volkerdi@mhd1.moorhead.msus.edu) that made these changes:
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* - increased MAX_LEN to 2048
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* - added 'infobox', equivalent to a message box without pausing
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* - added option '--clear' that will clear the screen
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* - Explicit line breaking when printing prompt text can be
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* invoked by real newline '\n' besides the string "\n"
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* - an optional parameter '--title <string>' can be used to
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* specify a title string for the dialog box
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*
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* 03/01/94 - added 'textbox', a dialog box for displaying text from a file.
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* - Version 0.2 released.
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*
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* 04/01/94 - some fixes and improvements for 'textbox':
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* - fixed a bug that will cause a segmentation violation when a
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* line is longer than MAX_LEN characters. Lines will now be
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* truncated if they are longer than MAX_LEN characters.
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* - removed wrefresh() from print_line(). This will increase
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* efficiency of print_page() which calls print_line().
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* - display current position in the form of percentage into file.
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* - Version 0.21 released.
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*
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* 05/01/94 - some changes for faster screen update.
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*
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* 07/01/94 - much more flexible color settings. Can use all 16 colors
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* (8 normal, 8 highlight) of the Linux console.
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*
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* 08/01/94 - added run-time configuration using configuration file.
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*
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* 09/01/94 - some minor bug fixes and cleanups for menubox, checklist and
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* textbox.
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*
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* 11/01/94 - added a man page.
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*
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* 13/01/94 - some changes for easier porting to other Unix systems (tested
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* on Ultrix, SunOS and HPUX)
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* - Version 0.3 released.
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*
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* 08/06/94 - Patches by Stuart Herbert - S.Herbert@shef.ac.uk
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* Fixed attr_clear and the textbox stuff to work with ncurses 1.8.5
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* Fixed the wordwrap routine - it'll actually wrap properly now
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* Added a more 3D look to everything - having your own rc file could
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* prove 'interesting' to say the least :-)
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* Added radiolist option
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* - Version 0.4 released.
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*/
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#define __DIALOG_MAIN__
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#include "dialog.h"
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#ifdef HAVE_NCURSES
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#include "colors.h"
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#endif
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int main(int argc, unsigned char *argv[])
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{
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int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
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unsigned char *title = NULL;
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#if defined(LOCALE)
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(void) setlocale(LC_ALL, "");
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#endif
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if (argc < 2) {
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Usage(argv[0]);
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exit(-1);
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}
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else if (!strcmp(argv[1], "--create-rc")) {
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#ifdef HAVE_NCURSES
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if (argc != 3) {
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Usage(argv[0]);
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exit(-1);
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}
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create_rc(argv[2]);
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return 0;
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#else
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fprintf(stderr, "\nThis option is currently unsupported on your system.\n");
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return -1;
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#endif
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}
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while (offset < argc-1 && !end_common_opts) { /* Common options */
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if (!strcmp(argv[offset+1], "--title")) {
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if (argc-offset < 3 || title != NULL) { /* No two "--title" please! */
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Usage(argv[0]);
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exit(-1);
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}
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else {
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title = argv[offset+2];
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offset += 2;
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}
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}
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else if (!strcmp(argv[offset+1], "--clear")) {
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if (clear_screen) { /* Hey, "--clear" can't appear twice! */
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Usage(argv[0]);
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exit(-1);
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}
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else if (argc == 2) { /* we only want to clear the screen */
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init_dialog();
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refresh(); /* init_dialog() will clear the screen for us */
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endwin();
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return 0;
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}
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else {
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clear_screen = 1;
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offset++;
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}
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}
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else /* no more common options */
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end_common_opts = 1;
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}
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if (argc-1 == offset) { /* no more options */
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Usage(argv[0]);
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exit(-1);
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}
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/* Box options */
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if (!strcmp(argv[offset+1], "--yesno")) {
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if (argc-offset != 5) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_yesno(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]));
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--msgbox")) {
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if (argc-offset != 5) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]), 1);
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--infobox")) {
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if (argc-offset != 5) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]), 0);
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--textbox")) {
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if (argc-offset != 5) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_textbox(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]));
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--menu")) {
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if (argc-offset < 8 || ((argc-offset) % 2)) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_menu(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]), atoi(argv[offset+5]),
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(argc-offset-6)/2, argv+offset + 6);
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--checklist")) {
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if (argc-offset < 9 || ((argc-offset-6) % 3)) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_checklist(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]), atoi(argv[offset+5]),
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(argc-offset-6)/3, argv+offset + 6);
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--radiolist")) {
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if (argc-offset < 9 || ((argc-offset-6) % 3)) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_radiolist(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]), atoi(argv[offset+5]),
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(argc-offset-6)/3, argv+offset + 6);
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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else if (!strcmp(argv[offset+1], "--inputbox")) {
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if (argc-offset != 5) {
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Usage(argv[0]);
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exit(-1);
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}
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init_dialog();
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retval = dialog_inputbox(title, argv[offset+2], atoi(argv[offset+3]),
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atoi(argv[offset+4]));
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if (clear_screen) { /* clear screen before exit */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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refresh();
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}
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endwin();
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return retval;
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}
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Usage(argv[0]);
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exit(-1);
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}
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/* End of main() */
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/*
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* Print program usage
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*/
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void Usage(unsigned char *name)
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{
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fprintf(stderr, "\
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\ndialog version 0.3, by Savio Lam (lam836@cs.cuhk.hk).\
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\n patched to version %s by Stuart Herbert (S.Herbert@shef.ac.uk)\
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\n\
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\n* Display dialog boxes from shell scripts *\
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\n\
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\nUsage: %s --clear\
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\n %s --create-rc <file>\
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\n %s [--title <title>] [--clear] <Box options>\
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\n\
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\nBox options:\
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\n\
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\n --yesno <text> <height> <width>\
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\n --msgbox <text> <height> <width>\
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\n --infobox <text> <height> <width>\
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\n --inputbox <text> <height> <width>\
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\n --textbox <file> <height> <width>\
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\n --menu <text> <height> <width> <menu height> <tag1> <item1>...\
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\n --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
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\n --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\n", VERSION, name, name, name);
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}
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/* End of Usage() */
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/*
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* Do some initialization for dialog
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*/
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void init_dialog(void)
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{
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#ifdef HAVE_NCURSES
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if (parse_rc() == -1) /* Read the configuration file */
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exit(-1);
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#endif
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initscr(); /* Init curses */
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keypad(stdscr, TRUE);
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cbreak();
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noecho();
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#ifdef HAVE_NCURSES
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if (use_colors || use_shadow) /* Set up colors */
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color_setup();
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#endif
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/* Set screen to screen attribute */
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attr_clear(stdscr, LINES, COLS, screen_attr);
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wnoutrefresh(stdscr);
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}
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/* End of init_dialog() */
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#ifdef HAVE_NCURSES
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/*
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* Setup for color display
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*/
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void color_setup(void)
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{
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int i;
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if (has_colors()) { /* Terminal supports color? */
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start_color();
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/* Initialize color pairs */
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for (i = 0; i < ATTRIBUTE_COUNT; i++)
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init_pair(i+1, color_table[i][0], color_table[i][1]);
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/* Setup color attributes */
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for (i = 0; i < ATTRIBUTE_COUNT; i++)
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attributes[i] = C_ATTR(color_table[i][2], i+1);
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}
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}
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/* End of color_setup() */
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#endif
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/*
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* Set window to attribute 'attr'
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*/
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void attr_clear(WINDOW *win, int height, int width, chtype attr)
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{
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int i, j;
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wattrset(win, attr); /* Set window to attribute 'attr' */
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for (i = 0; i < height; i++) {
|
||
|
|
wmove(win, i, 0);
|
||
|
|
for (j = 0; j < width; j++)
|
||
|
|
waddch(win, ' ');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* End of attr_clear() */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Print a string of text in a window, automatically wrap around to the
|
||
|
|
* next line if the string is too long to fit on one line. Note that the
|
||
|
|
* string may contain "\n" to represent a newline character or the real
|
||
|
|
* newline '\n', but in that case, auto wrap around will be disabled.
|
||
|
|
*/
|
||
|
|
void print_autowrap(WINDOW *win, unsigned char *prompt, int width, int y, int x)
|
||
|
|
{
|
||
|
|
int first = 1, cur_x, cur_y;
|
||
|
|
unsigned char tempstr[MAX_LEN+1], *word, *tempptr, *tempptr1;
|
||
|
|
|
||
|
|
strcpy(tempstr, prompt);
|
||
|
|
if ((strstr(tempstr, "\\n") != NULL) ||
|
||
|
|
(strchr(tempstr, '\n') != NULL)) { /* Prompt contains "\n" or '\n' */
|
||
|
|
word = tempstr;
|
||
|
|
cur_y = y;
|
||
|
|
wmove(win, cur_y, x);
|
||
|
|
while (1) {
|
||
|
|
tempptr = strstr(word, "\\n");
|
||
|
|
tempptr1 = strchr(word, '\n');
|
||
|
|
if (tempptr == NULL && tempptr1 == NULL)
|
||
|
|
break;
|
||
|
|
else if (tempptr == NULL) { /* No more "\n" */
|
||
|
|
tempptr = tempptr1;
|
||
|
|
tempptr[0] = '\0';
|
||
|
|
}
|
||
|
|
else if (tempptr1 == NULL) { /* No more '\n' */
|
||
|
|
tempptr[0] = '\0';
|
||
|
|
tempptr++;
|
||
|
|
}
|
||
|
|
else { /* Prompt contains both "\n" and '\n' */
|
||
|
|
if (strlen(tempptr)-2 < strlen(tempptr1)-1) {
|
||
|
|
tempptr = tempptr1;
|
||
|
|
tempptr[0] = '\0';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
tempptr[0] = '\0';
|
||
|
|
tempptr++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
waddstr(win, word);
|
||
|
|
word = tempptr + 1;
|
||
|
|
wmove(win, ++cur_y, x);
|
||
|
|
}
|
||
|
|
waddstr(win, word);
|
||
|
|
}
|
||
|
|
else if (strlen(tempstr) <= width-x*2) { /* If prompt is short */
|
||
|
|
wmove(win, y, (width - strlen(tempstr)) / 2);
|
||
|
|
waddstr(win, tempstr);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
cur_x = x;
|
||
|
|
cur_y = y;
|
||
|
|
/* Print prompt word by word, wrap around if necessary */
|
||
|
|
while ((word = strtok(first ? tempstr : NULL, " ")) != NULL) {
|
||
|
|
if (first) /* First iteration */
|
||
|
|
first = 0;
|
||
|
|
if (cur_x+strlen(word) >= width) { /* wrap around to next line */
|
||
|
|
cur_y++;
|
||
|
|
cur_x = x;
|
||
|
|
}
|
||
|
|
wmove(win, cur_y, cur_x);
|
||
|
|
waddstr(win, word);
|
||
|
|
getyx(win, cur_y, cur_x);
|
||
|
|
cur_x++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* End of print_autowrap() */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Print a button
|
||
|
|
*/
|
||
|
|
void print_button(WINDOW *win, unsigned char *label, int y, int x, int selected)
|
||
|
|
{
|
||
|
|
int i, temp;
|
||
|
|
|
||
|
|
wmove(win, y, x);
|
||
|
|
wattrset(win, selected ? button_active_attr : button_inactive_attr);
|
||
|
|
waddstr(win, "<");
|
||
|
|
temp = strspn(label, " ");
|
||
|
|
label += temp;
|
||
|
|
wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
|
||
|
|
for (i = 0; i < temp; i++)
|
||
|
|
waddch(win, ' ');
|
||
|
|
wattrset(win, selected ? button_key_active_attr : button_key_inactive_attr);
|
||
|
|
waddch(win, label[0]);
|
||
|
|
wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
|
||
|
|
waddstr(win, label+1);
|
||
|
|
wattrset(win, selected ? button_active_attr : button_inactive_attr);
|
||
|
|
waddstr(win, ">");
|
||
|
|
wmove(win, y, x+temp+1);
|
||
|
|
}
|
||
|
|
/* End of print_button() */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Draw a rectangular box with line drawing characters
|
||
|
|
*/
|
||
|
|
void draw_box(WINDOW *win, int y, int x, int height, int width, chtype box, chtype border)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
|
||
|
|
wattrset(win, 0);
|
||
|
|
for (i = 0; i < height; i++) {
|
||
|
|
wmove(win, y + i, x);
|
||
|
|
for (j = 0; j < width; j++)
|
||
|
|
if (!i && !j)
|
||
|
|
waddch(win, border | ACS_ULCORNER);
|
||
|
|
else if (i == height-1 && !j)
|
||
|
|
waddch(win, border | ACS_LLCORNER);
|
||
|
|
else if (!i && j == width-1)
|
||
|
|
waddch(win, box | ACS_URCORNER);
|
||
|
|
else if (i == height-1 && j == width-1)
|
||
|
|
waddch(win, box | ACS_LRCORNER);
|
||
|
|
else if (!i)
|
||
|
|
waddch(win, border | ACS_HLINE);
|
||
|
|
else if (i == height-1)
|
||
|
|
waddch(win, box | ACS_HLINE);
|
||
|
|
else if (!j)
|
||
|
|
waddch(win, border | ACS_VLINE);
|
||
|
|
else if (j == width-1)
|
||
|
|
waddch(win, box | ACS_VLINE);
|
||
|
|
else
|
||
|
|
waddch(win, box | ' ');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* End of draw_box() */
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef HAVE_NCURSES
|
||
|
|
/*
|
||
|
|
* Draw shadows along the right and bottom edge to give a more 3D look
|
||
|
|
* to the boxes
|
||
|
|
*/
|
||
|
|
void draw_shadow(WINDOW *win, int y, int x, int height, int width)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (has_colors()) { /* Whether terminal supports color? */
|
||
|
|
wattrset(win, shadow_attr);
|
||
|
|
wmove(win, y + height, x + 2);
|
||
|
|
for (i = 0; i < width; i++)
|
||
|
|
waddch(win, winch(win) & A_CHARTEXT);
|
||
|
|
for (i = y + 1; i < y + height + 1; i++) {
|
||
|
|
wmove(win, i, x + width);
|
||
|
|
waddch(win, winch(win) & A_CHARTEXT);
|
||
|
|
waddch(win, winch(win) & A_CHARTEXT);
|
||
|
|
}
|
||
|
|
wnoutrefresh(win);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* End of draw_shadow() */
|
||
|
|
#endif
|