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Diffstat (limited to 'gnu/usr.bin/dialog/menubox.c')
| -rw-r--r-- | gnu/usr.bin/dialog/menubox.c | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/gnu/usr.bin/dialog/menubox.c b/gnu/usr.bin/dialog/menubox.c deleted file mode 100644 index e393c6c..0000000 --- a/gnu/usr.bin/dialog/menubox.c +++ /dev/null @@ -1,310 +0,0 @@ -/* - * menubox.c -- implements the menu box - * - * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) - * - * 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 print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected); - - -static int menu_width, tag_x, item_x; - - -/* - * 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 item_no, unsigned char **items) -{ - int i, x, y, cur_x, cur_y, box_x, box_y, key = 0, button = 0, choice = 0, - scroll = 0, max_choice; - WINDOW *dialog, *menu; - - max_choice = MIN(menu_height, item_no); - - /* center dialog box on screen */ - x = (COLS - width)/2; - y = (LINES - height)/2; - -#ifdef HAVE_NCURSES - if (use_shadow) - draw_shadow(stdscr, y, x, height, width); -#endif - dialog = newwin(height, width, y, x); - 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); - print_autowrap(dialog, prompt, width, 1, 3); - - 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); - 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 = 0; - item_x = 0; - /* Find length of longest item in order to center menu */ - for (i = 0; i < item_no; i++) { - tag_x = MAX(tag_x, strlen(items[i*2]) + strlen(items[i*2 + 1]) + 2); - item_x = MAX(item_x, strlen(items[i*2])); - } - tag_x = (menu_width - tag_x) / 2; - item_x = tag_x + item_x + 2; - - /* Print the menu */ - for (i = 0; i < max_choice; i++) - print_item(menu, items[i*2], items[i*2 + 1], i, i == choice); - wnoutrefresh(menu); - - if (menu_height < item_no) { - wattrset(dialog, darrow_attr); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1); - waddch(dialog, ACS_DARROW); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2); - waddstr(dialog,"(+)"); - } - - x = width/2-11; - y = height-2; - print_button(dialog, "Cancel", y, x+14, FALSE); - print_button(dialog, " OK ", y, x, TRUE); - wrefresh(dialog); - - while (key != ESC) { - key = wgetch(dialog); - /* Check if key pressed matches first character of any item tag in menu */ - for (i = 0; i < max_choice; i++) - if (key < 0x100 && toupper(key) == toupper(items[(scroll+i)*2][0])) - break; - - if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || - key == KEY_UP || key == KEY_DOWN || key == '-' || key == '+') { - if (key >= '1' && key <= MIN('9', '0'+max_choice)) - i = key - '1'; - else if (key == KEY_UP || key == '-') { - if (!choice) { - if (scroll) { -#ifdef BROKEN_WSCRL - /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation - violation when scrolling windows of height = 4, so scrolling is not - used for now */ - scroll--; - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - /* Reprint menu to scroll down */ - for (i = 0; i < max_choice; i++) - print_item(menu, items[(scroll+i)*2], items[(scroll+i)*2 + 1], i, i == choice); - -#else - - /* 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); - scrollok(menu, TRUE); - wscrl(menu, -1); - scrollok(menu, FALSE); - } - scroll--; - print_item(menu, items[scroll*2], items[scroll*2 + 1], 0, TRUE); -#endif - wnoutrefresh(menu); - - /* print the up/down arrows */ - wmove(dialog, box_y, box_x + tag_x + 1); - wattrset(dialog, scroll ? uarrow_attr : menubox_attr); - waddch(dialog, scroll ? ACS_UARROW : ACS_HLINE); - wmove(dialog, box_y, box_x + tag_x + 2); - waddch(dialog, scroll ? '(' : ACS_HLINE); - wmove(dialog, box_y, box_x + tag_x + 3); - waddch(dialog, scroll ? '-' : ACS_HLINE); - wmove(dialog, box_y, box_x + tag_x + 4); - waddch(dialog, scroll ? ')' : ACS_HLINE); - wattrset(dialog, darrow_attr); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1); - waddch(dialog, ACS_DARROW); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2); - waddstr(dialog,"(+)"); - wmove(dialog, cur_y, cur_x); /* Restore cursor position */ - wrefresh(dialog); - } - continue; /* wait for another key press */ - } - else - i = choice - 1; - } - else if (key == KEY_DOWN || key == '+') - if (choice == max_choice - 1) { - if (scroll+choice < item_no-1) { -#ifdef BROKEN_WSCRL - /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation - violation when scrolling windows of height = 4, so scrolling is not - used for now */ - scroll++; - getyx(dialog, cur_y, cur_x); /* Save cursor position */ - /* Reprint menu to scroll up */ - for (i = 0; i < max_choice; i++) - print_item(menu, items[(scroll+i)*2], items[(scroll+i)*2 + 1], i, i == choice); - -#else - - /* 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); - 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); -#endif - wnoutrefresh(menu); - - /* print the up/down arrows */ - wattrset(dialog, uarrow_attr); - wmove(dialog, box_y, box_x + tag_x + 1); - waddch(dialog, ACS_UARROW); - wmove(dialog, box_y, box_x + tag_x + 2); - waddstr(dialog,"(-)"); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1); - wattrset(dialog, scroll+choice < item_no-1 ? darrow_attr : menubox_border_attr); - waddch(dialog, scroll+choice < item_no-1 ? ACS_DARROW : ACS_HLINE); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2); - waddch(dialog, scroll+choice < item_no-1 ? '(' : ACS_HLINE); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 3); - waddch(dialog, scroll+choice < item_no-1 ? '+' : ACS_HLINE); - wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 4); - waddch(dialog, scroll+choice < item_no-1 ? ')' : ACS_HLINE); - wmove(dialog, cur_y, cur_x); /* Restore cursor position */ - 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); - - /* Highlight new item */ - choice = i; - print_item(menu, items[(scroll+choice)*2], items[(scroll+choice)*2 + 1], choice, TRUE); - wnoutrefresh(menu); - wmove(dialog, cur_y, cur_x); /* Restore cursor to previous position */ - wrefresh(dialog); - } - continue; /* wait for another key press */ - } - - switch (key) { - case 'O': - case 'o': - delwin(dialog); - fprintf(stderr, items[(scroll+choice)*2]); - return 0; - case 'C': - case 'c': - delwin(dialog); - return 1; - case KEY_BTAB: - case TAB: - case KEY_LEFT: - case KEY_RIGHT: - if (!button) { - button = 1; /* Indicates "Cancel" button is selected */ - print_button(dialog, " OK ", y, x, FALSE); - print_button(dialog, "Cancel", y, x+14, TRUE); - } - else { - button = 0; /* Indicates "OK" button is selected */ - print_button(dialog, "Cancel", y, x+14, FALSE); - print_button(dialog, " OK ", y, x, TRUE); - } - wrefresh(dialog); - break; - case ' ': - case '\n': - delwin(dialog); - if (!button) - fprintf(stderr, items[(scroll+choice)*2]); - return button; - case ESC: - break; - } - } - - delwin(dialog); - return -1; /* ESC pressed */ -} -/* End of dialog_menu() */ - - -/* - * Print menu item - */ -static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected) -{ - int i; - - /* 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); - waddstr(win, tag + 1); - wmove(win, choice, item_x); - wattrset(win, selected ? item_selected_attr : item_attr); - waddstr(win, item); -} -/* End of print_item() */ |
