| /********************************* tui.c ************************************/ |
| /* |
| * 'textual user interface' |
| * |
| * $Id: tui.c,v 1.34 2008/07/14 12:35:23 wmcbrine Exp $ |
| * |
| * Author : P.J. Kunst <kunst@prl.philips.nl> |
| * Date : 25-02-93 |
| */ |
| |
| #include <ctype.h> |
| #include <curses.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include "tui.h" |
| |
| void statusmsg(char *); |
| int waitforkey(void); |
| void rmerror(void); |
| |
| #if defined(__unix) && !defined(__DJGPP__) |
| #include <unistd.h> |
| #endif |
| |
| #ifdef A_COLOR |
| # define TITLECOLOR 1 /* color pair indices */ |
| # define MAINMENUCOLOR (2 | A_BOLD) |
| # define MAINMENUREVCOLOR (3 | A_BOLD | A_REVERSE) |
| # define SUBMENUCOLOR (4 | A_BOLD) |
| # define SUBMENUREVCOLOR (5 | A_BOLD | A_REVERSE) |
| # define BODYCOLOR 6 |
| # define STATUSCOLOR (7 | A_BOLD) |
| # define INPUTBOXCOLOR 8 |
| # define EDITBOXCOLOR (9 | A_BOLD | A_REVERSE) |
| #else |
| # define TITLECOLOR 0 /* color pair indices */ |
| # define MAINMENUCOLOR (A_BOLD) |
| # define MAINMENUREVCOLOR (A_BOLD | A_REVERSE) |
| # define SUBMENUCOLOR (A_BOLD) |
| # define SUBMENUREVCOLOR (A_BOLD | A_REVERSE) |
| # define BODYCOLOR 0 |
| # define STATUSCOLOR (A_BOLD) |
| # define INPUTBOXCOLOR 0 |
| # define EDITBOXCOLOR (A_BOLD | A_REVERSE) |
| #endif |
| |
| |
| #define th 1 /* title window height */ |
| #define mh 1 /* main menu height */ |
| #define sh 2 /* status window height */ |
| #define bh (LINES - th - mh - sh) /* body window height */ |
| #define bw COLS /* body window width */ |
| |
| |
| /******************************* STATIC ************************************/ |
| |
| static WINDOW *wtitl, *wmain, *wbody, *wstat; /* title, menu, body, status win*/ |
| static int nexty, nextx; |
| static int key = ERR, ch = ERR; |
| static bool quit = FALSE; |
| static bool incurses = FALSE; |
| |
| #ifndef PDCURSES |
| static char wordchar(void) |
| { |
| return 0x17; /* ^W */ |
| } |
| #endif |
| |
| static char *padstr(char *s, int length) |
| { |
| static char buf[MAXSTRLEN]; |
| char fmt[10]; |
| |
| sprintf(fmt, (int)strlen(s) > length ? "%%.%ds" : "%%-%ds", length); |
| sprintf(buf, fmt, s); |
| |
| return buf; |
| } |
| |
| static char *prepad(char *s, int length) |
| { |
| int i; |
| char *p = s; |
| |
| if (length > 0) |
| { |
| memmove((void *)(s + length), (const void *)s, strlen(s) + 1); |
| |
| for (i = 0; i < length; i++) |
| *p++ = ' '; |
| } |
| |
| return s; |
| } |
| |
| static void rmline(WINDOW *win, int nr) /* keeps box lines intact */ |
| { |
| mvwaddstr(win, nr, 1, padstr(" ", bw - 2)); |
| wrefresh(win); |
| } |
| |
| static void initcolor(void) |
| { |
| #ifdef A_COLOR |
| if (has_colors()) |
| start_color(); |
| |
| /* foreground, background */ |
| |
| init_pair(TITLECOLOR & ~A_ATTR, COLOR_BLACK, COLOR_CYAN); |
| init_pair(MAINMENUCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_CYAN); |
| init_pair(MAINMENUREVCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_BLACK); |
| init_pair(SUBMENUCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_CYAN); |
| init_pair(SUBMENUREVCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_BLACK); |
| init_pair(BODYCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_BLUE); |
| init_pair(STATUSCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_CYAN); |
| init_pair(INPUTBOXCOLOR & ~A_ATTR, COLOR_BLACK, COLOR_CYAN); |
| init_pair(EDITBOXCOLOR & ~A_ATTR, COLOR_WHITE, COLOR_BLACK); |
| #endif |
| } |
| |
| static void setcolor(WINDOW *win, chtype color) |
| { |
| chtype attr = color & A_ATTR; /* extract Bold, Reverse, Blink bits */ |
| |
| #ifdef A_COLOR |
| attr &= ~A_REVERSE; /* ignore reverse, use colors instead! */ |
| wattrset(win, COLOR_PAIR(color & A_CHARTEXT) | attr); |
| #else |
| attr &= ~A_BOLD; /* ignore bold, gives messy display on HP-UX */ |
| wattrset(win, attr); |
| #endif |
| } |
| |
| static void colorbox(WINDOW *win, chtype color, int hasbox) |
| { |
| int maxy; |
| #ifndef PDCURSES |
| int maxx; |
| #endif |
| chtype attr = color & A_ATTR; /* extract Bold, Reverse, Blink bits */ |
| |
| setcolor(win, color); |
| |
| #ifdef A_COLOR |
| if (has_colors()) |
| wbkgd(win, COLOR_PAIR(color & A_CHARTEXT) | (attr & ~A_REVERSE)); |
| else |
| #endif |
| wbkgd(win, attr); |
| |
| werase(win); |
| |
| #ifdef PDCURSES |
| maxy = getmaxy(win); |
| #else |
| getmaxyx(win, maxy, maxx); |
| #endif |
| if (hasbox && (maxy > 2)) |
| box(win, 0, 0); |
| |
| touchwin(win); |
| wrefresh(win); |
| } |
| |
| static void idle(void) |
| { |
| char buf[MAXSTRLEN]; |
| time_t t; |
| struct tm *tp; |
| |
| if (time (&t) == -1) |
| return; /* time not available */ |
| |
| tp = localtime(&t); |
| sprintf(buf, " %.2d-%.2d-%.4d %.2d:%.2d:%.2d", |
| tp->tm_mday, tp->tm_mon + 1, tp->tm_year + 1900, |
| tp->tm_hour, tp->tm_min, tp->tm_sec); |
| |
| mvwaddstr(wtitl, 0, bw - strlen(buf) - 2, buf); |
| wrefresh(wtitl); |
| } |
| |
| static void menudim(menu *mp, int *lines, int *columns) |
| { |
| int n, l, mmax = 0; |
| |
| for (n=0; mp->func; n++, mp++) |
| if ((l = strlen(mp->name)) > mmax) mmax = l; |
| |
| *lines = n; |
| *columns = mmax + 2; |
| } |
| |
| static void setmenupos(int y, int x) |
| { |
| nexty = y; |
| nextx = x; |
| } |
| |
| static void getmenupos(int *y, int *x) |
| { |
| *y = nexty; |
| *x = nextx; |
| } |
| |
| static int hotkey(const char *s) |
| { |
| int c0 = *s; /* if no upper case found, return first char */ |
| |
| for (; *s; s++) |
| if (isupper((unsigned char)*s)) |
| break; |
| |
| return *s ? *s : c0; |
| } |
| |
| static void repaintmenu(WINDOW *wmenu, menu *mp) |
| { |
| int i; |
| menu *p = mp; |
| |
| for (i = 0; p->func; i++, p++) |
| mvwaddstr(wmenu, i + 1, 2, p->name); |
| |
| touchwin(wmenu); |
| wrefresh(wmenu); |
| } |
| |
| static void repaintmainmenu(int width, menu *mp) |
| { |
| int i; |
| menu *p = mp; |
| |
| for (i = 0; p->func; i++, p++) |
| mvwaddstr(wmain, 0, i * width, prepad(padstr(p->name, width - 1), 1)); |
| |
| touchwin(wmain); |
| wrefresh(wmain); |
| } |
| |
| static void mainhelp(void) |
| { |
| #ifdef ALT_X |
| statusmsg("Use arrow keys and Enter to select (Alt-X to quit)"); |
| #else |
| statusmsg("Use arrow keys and Enter to select"); |
| #endif |
| } |
| |
| static void mainmenu(menu *mp) |
| { |
| int nitems, barlen, old = -1, cur = 0, c, cur0; |
| |
| menudim(mp, &nitems, &barlen); |
| repaintmainmenu(barlen, mp); |
| |
| while (!quit) |
| { |
| if (cur != old) |
| { |
| if (old != -1) |
| { |
| mvwaddstr(wmain, 0, old * barlen, |
| prepad(padstr(mp[old].name, barlen - 1), 1)); |
| |
| statusmsg(mp[cur].desc); |
| } |
| else |
| mainhelp(); |
| |
| setcolor(wmain, MAINMENUREVCOLOR); |
| |
| mvwaddstr(wmain, 0, cur * barlen, |
| prepad(padstr(mp[cur].name, barlen - 1), 1)); |
| |
| setcolor(wmain, MAINMENUCOLOR); |
| old = cur; |
| wrefresh(wmain); |
| } |
| |
| switch (c = (key != ERR ? key : waitforkey())) |
| { |
| case KEY_DOWN: |
| case '\n': /* menu item selected */ |
| touchwin(wbody); |
| wrefresh(wbody); |
| rmerror(); |
| setmenupos(th + mh, cur * barlen); |
| curs_set(1); |
| (mp[cur].func)(); /* perform function */ |
| curs_set(0); |
| |
| switch (key) |
| { |
| case KEY_LEFT: |
| cur = (cur + nitems - 1) % nitems; |
| key = '\n'; |
| break; |
| |
| case KEY_RIGHT: |
| cur = (cur + 1) % nitems; |
| key = '\n'; |
| break; |
| |
| default: |
| key = ERR; |
| } |
| |
| repaintmainmenu(barlen, mp); |
| old = -1; |
| break; |
| |
| case KEY_LEFT: |
| cur = (cur + nitems - 1) % nitems; |
| break; |
| |
| case KEY_RIGHT: |
| cur = (cur + 1) % nitems; |
| break; |
| |
| case KEY_ESC: |
| mainhelp(); |
| break; |
| |
| default: |
| cur0 = cur; |
| |
| do |
| { |
| cur = (cur + 1) % nitems; |
| |
| } while ((cur != cur0) && (hotkey(mp[cur].name) != toupper(c))); |
| |
| if (hotkey(mp[cur].name) == toupper(c)) |
| key = '\n'; |
| } |
| |
| } |
| |
| rmerror(); |
| touchwin(wbody); |
| wrefresh(wbody); |
| } |
| |
| static void cleanup(void) /* cleanup curses settings */ |
| { |
| if (incurses) |
| { |
| delwin(wtitl); |
| delwin(wmain); |
| delwin(wbody); |
| delwin(wstat); |
| curs_set(1); |
| endwin(); |
| incurses = FALSE; |
| } |
| } |
| |
| |
| /******************************* EXTERNAL **********************************/ |
| |
| void clsbody(void) |
| { |
| werase(wbody); |
| wmove(wbody, 0, 0); |
| } |
| |
| int bodylen(void) |
| { |
| #ifdef PDCURSES |
| return getmaxy(wbody); |
| #else |
| int maxy, maxx; |
| |
| getmaxyx(wbody, maxy, maxx); |
| return maxy; |
| #endif |
| } |
| |
| WINDOW *bodywin(void) |
| { |
| return wbody; |
| } |
| |
| void rmerror(void) |
| { |
| rmline(wstat, 0); |
| } |
| |
| void rmstatus(void) |
| { |
| rmline(wstat, 1); |
| } |
| |
| void titlemsg(char *msg) |
| { |
| mvwaddstr(wtitl, 0, 2, padstr(msg, bw - 3)); |
| wrefresh(wtitl); |
| } |
| |
| void bodymsg(char *msg) |
| { |
| waddstr(wbody, msg); |
| wrefresh(wbody); |
| } |
| |
| void errormsg(char *msg) |
| { |
| beep(); |
| mvwaddstr(wstat, 0, 2, padstr(msg, bw - 3)); |
| wrefresh(wstat); |
| } |
| |
| void statusmsg(char *msg) |
| { |
| mvwaddstr(wstat, 1, 2, padstr(msg, bw - 3)); |
| wrefresh(wstat); |
| } |
| |
| bool keypressed(void) |
| { |
| ch = wgetch(wbody); |
| |
| return ch != ERR; |
| } |
| |
| int getkey(void) |
| { |
| int c = ch; |
| |
| ch = ERR; |
| #ifdef ALT_X |
| quit = (c == ALT_X); /* PC only ! */ |
| #endif |
| return c; |
| } |
| |
| int waitforkey(void) |
| { |
| do idle(); while (!keypressed()); |
| return getkey(); |
| } |
| |
| void DoExit(void) /* terminate program */ |
| { |
| quit = TRUE; |
| } |
| |
| void domenu(menu *mp) |
| { |
| int y, x, nitems, barlen, mheight, mw, old = -1, cur = 0, cur0; |
| bool stop = FALSE; |
| WINDOW *wmenu; |
| |
| curs_set(0); |
| getmenupos(&y, &x); |
| menudim(mp, &nitems, &barlen); |
| mheight = nitems + 2; |
| mw = barlen + 2; |
| wmenu = newwin(mheight, mw, y, x); |
| colorbox(wmenu, SUBMENUCOLOR, 1); |
| repaintmenu(wmenu, mp); |
| |
| key = ERR; |
| |
| while (!stop && !quit) |
| { |
| if (cur != old) |
| { |
| if (old != -1) |
| mvwaddstr(wmenu, old + 1, 1, |
| prepad(padstr(mp[old].name, barlen - 1), 1)); |
| |
| setcolor(wmenu, SUBMENUREVCOLOR); |
| mvwaddstr(wmenu, cur + 1, 1, |
| prepad(padstr(mp[cur].name, barlen - 1), 1)); |
| |
| setcolor(wmenu, SUBMENUCOLOR); |
| statusmsg(mp[cur].desc); |
| |
| old = cur; |
| wrefresh(wmenu); |
| } |
| |
| switch (key = ((key != ERR) ? key : waitforkey())) |
| { |
| case '\n': /* menu item selected */ |
| touchwin(wbody); |
| wrefresh(wbody); |
| setmenupos(y + 1, x + 1); |
| rmerror(); |
| |
| key = ERR; |
| curs_set(1); |
| (mp[cur].func)(); /* perform function */ |
| curs_set(0); |
| |
| repaintmenu(wmenu, mp); |
| |
| old = -1; |
| break; |
| |
| case KEY_UP: |
| cur = (cur + nitems - 1) % nitems; |
| key = ERR; |
| break; |
| |
| case KEY_DOWN: |
| cur = (cur + 1) % nitems; |
| key = ERR; |
| break; |
| |
| case KEY_ESC: |
| case KEY_LEFT: |
| case KEY_RIGHT: |
| if (key == KEY_ESC) |
| key = ERR; /* return to prev submenu */ |
| |
| stop = TRUE; |
| break; |
| |
| default: |
| cur0 = cur; |
| |
| do |
| { |
| cur = (cur + 1) % nitems; |
| |
| } while ((cur != cur0) && |
| (hotkey(mp[cur].name) != toupper((int)key))); |
| |
| key = (hotkey(mp[cur].name) == toupper((int)key)) ? '\n' : ERR; |
| } |
| |
| } |
| |
| rmerror(); |
| delwin(wmenu); |
| touchwin(wbody); |
| wrefresh(wbody); |
| } |
| |
| void startmenu(menu *mp, char *mtitle) |
| { |
| initscr(); |
| incurses = TRUE; |
| initcolor(); |
| |
| wtitl = subwin(stdscr, th, bw, 0, 0); |
| wmain = subwin(stdscr, mh, bw, th, 0); |
| wbody = subwin(stdscr, bh, bw, th + mh, 0); |
| wstat = subwin(stdscr, sh, bw, th + mh + bh, 0); |
| |
| colorbox(wtitl, TITLECOLOR, 0); |
| colorbox(wmain, MAINMENUCOLOR, 0); |
| colorbox(wbody, BODYCOLOR, 0); |
| colorbox(wstat, STATUSCOLOR, 0); |
| |
| if (mtitle) |
| titlemsg(mtitle); |
| |
| cbreak(); /* direct input (no newline required)... */ |
| noecho(); /* ... without echoing */ |
| curs_set(0); /* hide cursor (if possible) */ |
| nodelay(wbody, TRUE); /* don't wait for input... */ |
| halfdelay(10); /* ...well, no more than a second, anyway */ |
| keypad(wbody, TRUE); /* enable cursor keys */ |
| scrollok(wbody, TRUE); /* enable scrolling in main window */ |
| |
| leaveok(stdscr, TRUE); |
| leaveok(wtitl, TRUE); |
| leaveok(wmain, TRUE); |
| leaveok(wstat, TRUE); |
| |
| mainmenu(mp); |
| |
| cleanup(); |
| } |
| |
| static void repainteditbox(WINDOW *win, int x, char *buf) |
| { |
| #ifndef PDCURSES |
| int maxy; |
| #endif |
| int maxx; |
| |
| #ifdef PDCURSES |
| maxx = getmaxx(win); |
| #else |
| getmaxyx(win, maxy, maxx); |
| #endif |
| werase(win); |
| mvwprintw(win, 0, 0, "%s", padstr(buf, maxx)); |
| wmove(win, 0, x); |
| wrefresh(win); |
| } |
| |
| /* |
| |
| weditstr() - edit string |
| |
| Description: |
| The initial value of 'str' with a maximum length of 'field' - 1, |
| which is supplied by the calling routine, is editted. The user's |
| erase (^H), kill (^U) and delete word (^W) chars are interpreted. |
| The PC insert or Tab keys toggle between insert and edit mode. |
| Escape aborts the edit session, leaving 'str' unchanged. |
| Enter, Up or Down Arrow are used to accept the changes to 'str'. |
| NOTE: editstr(), mveditstr(), and mvweditstr() are macros. |
| |
| Return Value: |
| Returns the input terminating character on success (Escape, |
| Enter, Up or Down Arrow) and ERR on error. |
| |
| Errors: |
| It is an error to call this function with a NULL window pointer. |
| The length of the initial 'str' must not exceed 'field' - 1. |
| |
| */ |
| |
| int weditstr(WINDOW *win, char *buf, int field) |
| { |
| char org[MAXSTRLEN], *tp, *bp = buf; |
| bool defdisp = TRUE, stop = FALSE, insert = FALSE; |
| int cury, curx, begy, begx, oldattr; |
| WINDOW *wedit; |
| int c = 0; |
| |
| if ((field >= MAXSTRLEN) || (buf == NULL) || |
| ((int)strlen(buf) > field - 1)) |
| return ERR; |
| |
| strcpy(org, buf); /* save original */ |
| |
| wrefresh(win); |
| getyx(win, cury, curx); |
| getbegyx(win, begy, begx); |
| |
| wedit = subwin(win, 1, field, begy + cury, begx + curx); |
| oldattr = wedit->_attrs; |
| colorbox(wedit, EDITBOXCOLOR, 0); |
| |
| keypad(wedit, TRUE); |
| curs_set(1); |
| |
| while (!stop) |
| { |
| idle(); |
| repainteditbox(wedit, bp - buf, buf); |
| |
| switch (c = wgetch(wedit)) |
| { |
| case ERR: |
| break; |
| |
| case KEY_ESC: |
| strcpy(buf, org); /* restore original */ |
| stop = TRUE; |
| break; |
| |
| case '\n': |
| case KEY_UP: |
| case KEY_DOWN: |
| stop = TRUE; |
| break; |
| |
| case KEY_LEFT: |
| if (bp > buf) |
| bp--; |
| break; |
| |
| case KEY_RIGHT: |
| defdisp = FALSE; |
| if (bp - buf < (int)strlen(buf)) |
| bp++; |
| break; |
| |
| case '\t': /* TAB -- because insert |
| is broken on HPUX */ |
| case KEY_IC: /* enter insert mode */ |
| case KEY_EIC: /* exit insert mode */ |
| defdisp = FALSE; |
| insert = !insert; |
| |
| curs_set(insert ? 2 : 1); |
| break; |
| |
| default: |
| if (c == erasechar()) /* backspace, ^H */ |
| { |
| if (bp > buf) |
| { |
| memmove((void *)(bp - 1), (const void *)bp, strlen(bp) + 1); |
| bp--; |
| } |
| } |
| else if (c == killchar()) /* ^U */ |
| { |
| bp = buf; |
| *bp = '\0'; |
| } |
| else if (c == wordchar()) /* ^W */ |
| { |
| tp = bp; |
| |
| while ((bp > buf) && (*(bp - 1) == ' ')) |
| bp--; |
| while ((bp > buf) && (*(bp - 1) != ' ')) |
| bp--; |
| |
| memmove((void *)bp, (const void *)tp, strlen(tp) + 1); |
| } |
| else if (isprint(c)) |
| { |
| if (defdisp) |
| { |
| bp = buf; |
| *bp = '\0'; |
| defdisp = FALSE; |
| } |
| |
| if (insert) |
| { |
| if ((int)strlen(buf) < field - 1) |
| { |
| memmove((void *)(bp + 1), (const void *)bp, |
| strlen(bp) + 1); |
| |
| *bp++ = c; |
| } |
| } |
| else if (bp - buf < field - 1) |
| { |
| /* append new string terminator */ |
| |
| if (!*bp) |
| bp[1] = '\0'; |
| |
| *bp++ = c; |
| } |
| } |
| } |
| } |
| |
| curs_set(0); |
| |
| wattrset(wedit, oldattr); |
| repainteditbox(wedit, bp - buf, buf); |
| delwin(wedit); |
| |
| return c; |
| } |
| |
| WINDOW *winputbox(WINDOW *win, int nlines, int ncols) |
| { |
| WINDOW *winp; |
| int cury, curx, begy, begx; |
| |
| getyx(win, cury, curx); |
| getbegyx(win, begy, begx); |
| |
| winp = newwin(nlines, ncols, begy + cury, begx + curx); |
| colorbox(winp, INPUTBOXCOLOR, 1); |
| |
| return winp; |
| } |
| |
| int getstrings(char *desc[], char *buf[], int field) |
| { |
| WINDOW *winput; |
| int oldy, oldx, maxy, maxx, nlines, ncols, i, n, l, mmax = 0; |
| int c = 0; |
| bool stop = FALSE; |
| |
| for (n = 0; desc[n]; n++) |
| if ((l = strlen(desc[n])) > mmax) |
| mmax = l; |
| |
| nlines = n + 2; ncols = mmax + field + 4; |
| getyx(wbody, oldy, oldx); |
| getmaxyx(wbody, maxy, maxx); |
| |
| winput = mvwinputbox(wbody, (maxy - nlines) / 2, (maxx - ncols) / 2, |
| nlines, ncols); |
| |
| for (i = 0; i < n; i++) |
| mvwprintw(winput, i + 1, 2, "%s", desc[i]); |
| |
| i = 0; |
| |
| while (!stop) |
| { |
| switch (c = mvweditstr(winput, i+1, mmax+3, buf[i], field)) |
| { |
| case KEY_ESC: |
| stop = TRUE; |
| break; |
| |
| case KEY_UP: |
| i = (i + n - 1) % n; |
| break; |
| |
| case '\n': |
| case '\t': |
| case KEY_DOWN: |
| if (++i == n) |
| stop = TRUE; /* all passed? */ |
| } |
| } |
| |
| delwin(winput); |
| touchwin(wbody); |
| wmove(wbody, oldy, oldx); |
| wrefresh(wbody); |
| |
| return c; |
| } |