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Diffstat (limited to 'gnu/lib/libdialog/menubox.c')
| -rw-r--r-- | gnu/lib/libdialog/menubox.c | 469 |
1 files changed, 0 insertions, 469 deletions
diff --git a/gnu/lib/libdialog/menubox.c b/gnu/lib/libdialog/menubox.c deleted file mode 100644 index a01acd5..0000000 --- a/gnu/lib/libdialog/menubox.c +++ /dev/null @@ -1,469 +0,0 @@ -/* - * menubox.c -- implements the menu box - * - * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) - * - * Substantial rennovation: 12/18/95, Jordan K. Hubbard - * - * 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <dialog.h> -#include "dialog.priv.h" -#include <err.h> -#include <ncurses.h> - -static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected, dialogMenuItem *me, int menu_width, int tag_x, int item_x); - -#define DREF(di, item) ((di) ? &((di)[(item)]) : NULL) - -/* - * Display a menu for choosing among a number of options - */ -int -dialog_menu(unsigned char *title, unsigned char *prompt, int height, int width, int menu_height, int cnt, void *it, unsigned char *result, int *ch, int *sc) -{ - int i, j, x, y, cur_x, cur_y, box_x, box_y, key = 0, button, choice, - l, k, scroll, max_choice, item_no, redraw_menu = FALSE; - char okButton, cancelButton; - int rval = 0, ok_space, cancel_space; - WINDOW *dialog, *menu; - unsigned char **items = NULL; - dialogMenuItem *ditems; - int menu_width, tag_x, item_x; - -draw: - choice = ch ? *ch : 0; - scroll = sc ? *sc : 0; - button = 0; - - /* If item_no is a positive integer, use old item specification format */ - if (cnt >= 0) { - items = it; - ditems = NULL; - item_no = cnt; - } - /* It's the new specification format - fake the rest of the code out */ - else { - item_no = abs(cnt); - ditems = it; - if (!items) - items = (unsigned char **)alloca((item_no * 2) * sizeof(unsigned char *)); - - /* Initializes status */ - for (i = 0; i < item_no; i++) { - items[i*2] = ditems[i].prompt; - items[i*2 + 1] = ditems[i].title; - } - } - max_choice = MIN(menu_height, item_no); - - tag_x = 0; - item_x = 0; - /* Find length of longest item in order to center menu */ - for (i = 0; i < item_no; i++) { - l = strlen(items[i * 2]); - for (j = 0; j < item_no; j++) { - k = strlen(items[j * 2 + 1]); - tag_x = MAX(tag_x, l + k + 2); - } - item_x = MAX(item_x, l); - } - if (height < 0) - height = strheight(prompt) + menu_height + 4 + 2; - if (width < 0) { - i = strwidth(prompt); - j = ((title != NULL) ? strwidth(title) : 0); - width = MAX(i, j); - width = MAX(width, tag_x + 4) + 4; - } - width = MAX(width, 24); - - if (width > COLS) - width = COLS; - if (height > LINES) - height = LINES; - /* center dialog box on screen */ - x = DialogX ? DialogX : (COLS - width) / 2; - y = DialogY ? DialogY : (LINES - height) / 2; - -#ifdef HAVE_NCURSES - if (use_shadow) - draw_shadow(stdscr, y, x, height, width); -#endif - dialog = newwin(height, width, y, x); - if (dialog == NULL) { - endwin(); - fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height, width, y, x); - return -1; - } - keypad(dialog, TRUE); - - draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); - wattrset(dialog, border_attr); - wmove(dialog, height - 3, 0); - waddch(dialog, ACS_LTEE); - for (i = 0; i < width - 2; i++) - waddch(dialog, ACS_HLINE); - wattrset(dialog, dialog_attr); - waddch(dialog, ACS_RTEE); - wmove(dialog, height - 2, 1); - for (i = 0; i < width - 2; i++) - waddch(dialog, ' '); - - if (title != NULL) { - wattrset(dialog, title_attr); - wmove(dialog, 0, (width - strlen(title)) / 2 - 1); - waddch(dialog, ' '); - waddstr(dialog, title); - waddch(dialog, ' '); - } - wattrset(dialog, dialog_attr); - wmove(dialog, 1, 2); - print_autowrap(dialog, prompt, height - 1, width - 2, width, 1, 2, TRUE, FALSE); - - menu_width = width - 6; - getyx(dialog, cur_y, cur_x); - box_y = cur_y + 1; - box_x = (width - menu_width) / 2 - 1; - - /* create new window for the menu */ - menu = subwin(dialog, menu_height, menu_width, y + box_y + 1, x + box_x + 1); - if (menu == NULL) { - delwin(dialog); - endwin(); - fprintf(stderr, "\nsubwin(dialog,%d,%d,%d,%d) failed, maybe wrong dims\n", menu_height, menu_width, - y + box_y + 1, x + box_x + 1); - return -1; - } - keypad(menu, TRUE); - - /* draw a box around the menu items */ - draw_box(dialog, box_y, box_x, menu_height+2, menu_width+2, menubox_border_attr, menubox_attr); - - tag_x = menu_width > tag_x + 1 ? (menu_width - tag_x) / 2 : 1; - item_x = menu_width > item_x + 4 ? tag_x + item_x + 2 : menu_width - 3; - - /* Print the menu */ - for (i = 0; i < max_choice; i++) - print_item(menu, items[(scroll + i) * 2], items[(scroll + i) * 2 + 1], i, i == choice, DREF(ditems, scroll + i), menu_width, tag_x, item_x); - wnoutrefresh(menu); - print_arrows(dialog, scroll, menu_height, item_no, box_x, box_y, tag_x, cur_x, cur_y); - - display_helpline(dialog, height - 1, width); - - x = width / 2 - 11; - y = height - 2; - - if (ditems && result) { - cancelButton = toupper(ditems[CANCEL_BUTTON].prompt[0]); - print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5, ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : FALSE); - okButton = toupper(ditems[OK_BUTTON].prompt[0]); - print_button(dialog, ditems[OK_BUTTON].prompt, y, x, ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : TRUE); - } - else { - cancelButton = 'C'; - print_button(dialog, "Cancel", y, x + 14, FALSE); - okButton = 'O'; - print_button(dialog, " OK ", y, x, TRUE); - } - - wrefresh(dialog); - while (key != ESC) { - key = wgetch(dialog); - - /* Shortcut to OK? */ - if (toupper(key) == okButton) { - if (ditems) { - if (result && ditems[OK_BUTTON].fire) { - int status; - WINDOW *save; - - save = dupwin(newscr); - status = ditems[OK_BUTTON].fire(&ditems[OK_BUTTON]); - if (status & DITEM_RESTORE) { - touchwin(save); - wrefresh(save); - } - delwin(save); - } - } - else if (result) - strcpy(result, items[(scroll + choice) * 2]); - rval = 0; - key = ESC; /* Punt! */ - break; - } - - /* Shortcut to cancel? */ - if (toupper(key) == cancelButton) { - if (ditems && result && ditems[CANCEL_BUTTON].fire) { - int status; - WINDOW *save; - - save = dupwin(newscr); - status = ditems[CANCEL_BUTTON].fire(&ditems[CANCEL_BUTTON]); - if (status & DITEM_RESTORE) { - touchwin(save); - wrefresh(save); - } - delwin(save); - } - rval = 1; - key = ESC; /* Run away! */ - break; - } - - /* Check if key pressed matches first character of any item tag in menu */ - for (i = 0; i < max_choice; i++) - if (key < 0x100 && key != ' ' && toupper(key) == toupper(items[(scroll + i) * 2][0])) - break; - - if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || KEY_IS_UP(key) || KEY_IS_DOWN(key)) { - if (key >= '1' && key <= MIN('9', '0'+max_choice)) - i = key - '1'; - else if (KEY_IS_UP(key)) { - if (!choice) { - if (scroll) { - /* Scroll menu down */ - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - if (menu_height > 1) { - /* De-highlight current first item before scrolling down */ - print_item(menu, items[scroll * 2], items[scroll * 2 + 1], 0, FALSE, DREF(ditems, scroll), menu_width, tag_x, item_x); - scrollok(menu, TRUE); - wscrl(menu, -1); - scrollok(menu, FALSE); - } - scroll--; - print_item(menu, items[scroll * 2], items[scroll * 2 + 1], 0, TRUE, DREF(ditems, scroll), menu_width, tag_x, item_x); - wnoutrefresh(menu); - print_arrows(dialog, scroll, menu_height, item_no, box_x, box_y, tag_x, cur_x, cur_y); - wrefresh(dialog); - } - continue; /* wait for another key press */ - } - else - i = choice - 1; - } - else if (KEY_IS_DOWN(key)) { - if (choice == max_choice - 1) { - if (scroll + choice < item_no - 1) { - /* Scroll menu up */ - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - if (menu_height > 1) { - /* De-highlight current last item before scrolling up */ - print_item(menu, items[(scroll + max_choice - 1) * 2], - items[(scroll + max_choice - 1) * 2 + 1], - max_choice-1, FALSE, DREF(ditems, scroll + max_choice - 1), menu_width, tag_x, item_x); - scrollok(menu, TRUE); - scroll(menu); - scrollok(menu, FALSE); - } - scroll++; - print_item(menu, items[(scroll + max_choice - 1) * 2], - items[(scroll + max_choice - 1) * 2 + 1], - max_choice - 1, TRUE, DREF(ditems, scroll + max_choice - 1), menu_width, tag_x, item_x); - wnoutrefresh(menu); - print_arrows(dialog, scroll, menu_height, item_no, box_x, box_y, tag_x, cur_x, cur_y); - wrefresh(dialog); - } - continue; /* wait for another key press */ - } - else - i = choice + 1; - } - - if (i != choice) { - /* De-highlight current item */ - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - print_item(menu, items[(scroll + choice) * 2], items[(scroll + choice) * 2 + 1], choice, FALSE, DREF(ditems, scroll + choice), menu_width, tag_x, item_x); - - /* Highlight new item */ - choice = i; - print_item(menu, items[(scroll + choice) * 2], items[(scroll + choice) * 2 + 1], choice, TRUE, DREF(ditems, scroll + choice), menu_width, tag_x, item_x); - wnoutrefresh(menu); - wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */ - wrefresh(dialog); - } - continue; /* wait for another key press */ - } - - switch (key) { - case KEY_PPAGE: - if (scroll > height - 4) { /* can we go up? */ - scroll -= (height - 4); - } else { - scroll = 0; - } - redraw_menu = TRUE; - break; - - case KEY_NPAGE: - if (scroll + menu_height >= item_no-1 - menu_height) { /* can we go down a full page? */ - scroll = item_no - menu_height; - if (scroll < 0) - scroll = 0; - } else { - scroll += menu_height; - } - redraw_menu = TRUE; - break; - - case KEY_HOME: - scroll = 0; - choice = 0; - redraw_menu = TRUE; - break; - - case KEY_END: - scroll = item_no - menu_height; - if (scroll < 0) - scroll = 0; - choice = max_choice - 1; - redraw_menu = TRUE; - break; - - case KEY_BTAB: - case TAB: - case KEY_LEFT: - case KEY_RIGHT: - button = !button; - if (ditems && result) { - print_button(dialog, ditems[CANCEL_BUTTON].prompt, y, x + strlen(ditems[OK_BUTTON].prompt) + 5, ditems[CANCEL_BUTTON].checked ? ditems[CANCEL_BUTTON].checked(&ditems[CANCEL_BUTTON]) : button); - print_button(dialog, ditems[OK_BUTTON].prompt, y, x, ditems[OK_BUTTON].checked ? ditems[OK_BUTTON].checked(&ditems[OK_BUTTON]) : !button); - ok_space = 1; - cancel_space = strlen(ditems[OK_BUTTON].prompt) + 6; - } - else { - print_button(dialog, "Cancel", y, x + 14, button); - print_button(dialog, " OK ", y, x, !button); - ok_space = 3; - cancel_space = 15; - } - if (button) - wmove(dialog, y, x+cancel_space); - else - wmove(dialog, y, x+ok_space); - wrefresh(dialog); - break; - - case ' ': - case '\r': - case '\n': - if (!button) { - /* A fire routine can do just about anything to the screen, so be prepared - to accept some hints as to what to do in the aftermath. */ - if (ditems) { - if (ditems[scroll + choice].fire) { - int status; - WINDOW *save; - - save = dupwin(newscr); - status = ditems[scroll + choice].fire(&ditems[scroll + choice]); - if (status & DITEM_RESTORE) { - touchwin(save); - wrefresh(save); - } - delwin(save); - if (status & DITEM_CONTINUE) - continue; - else if (status & DITEM_LEAVE_MENU) { - /* Allow a fire action to take us out of the menu */ - key = ESC; - break; - } - else if (status & DITEM_RECREATE) { - delwin(menu); - delwin(dialog); - dialog_clear(); - goto draw; - } - } - } - else if (result) - strcpy(result, items[(scroll+choice)*2]); - } - rval = button; - key = ESC; - break; - - case ESC: - rval = -1; - break; - - case KEY_F(1): - case '?': - display_helpfile(); - break; - } - - /* save info about menu item position */ - if (ch) - *ch = choice; - if (sc) - *sc = scroll; - - if (redraw_menu) { - for (i = 0; i < max_choice; i++) { - print_item(menu, items[(scroll + i) * 2], items[(scroll + i) * 2 + 1], i, i == choice, DREF(ditems, scroll + i), menu_width, tag_x, item_x); - } - wnoutrefresh(menu); - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - print_arrows(dialog, scroll, menu_height, item_no, box_x, box_y, tag_x, cur_x, cur_y); - wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */ - wrefresh(dialog); - redraw_menu = FALSE; - } - } - delwin(menu); - delwin(dialog); - return rval; -} - - -/* - * Print menu item - */ -static void -print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected, dialogMenuItem *me, int menu_width, int tag_x, int item_x) -{ - int i; - - if (tag == NULL) - errx(1, "bad parameter to print_item()\n"); - - /* Clear 'residue' of last item */ - wattrset(win, menubox_attr); - wmove(win, choice, 0); - for (i = 0; i < menu_width; i++) - waddch(win, ' '); - wmove(win, choice, tag_x); - wattrset(win, selected ? tag_key_selected_attr : tag_key_attr); - waddch(win, tag[0]); - wattrset(win, selected ? tag_selected_attr : tag_attr); - waddnstr(win, tag + 1, item_x - tag_x - 3); - wmove(win, choice, item_x); - wattrset(win, selected ? item_selected_attr : item_attr); - waddnstr(win, item, menu_width - item_x - 1); - /* If have a selection handler for this, call it */ - if (me && me->selected) { - wrefresh(win); - me->selected(me, selected); - } -} -/* End of print_item() */ |
