diff options
Diffstat (limited to 'scripts/lxdialog/menubox.c')
| -rw-r--r-- | scripts/lxdialog/menubox.c | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/scripts/lxdialog/menubox.c b/scripts/lxdialog/menubox.c deleted file mode 100644 index 91d82ba..0000000 --- a/scripts/lxdialog/menubox.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - * menubox.c -- implements the menu box - * - * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) - * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@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. - */ - -/* - * Changes by Clifford Wolf (god@clifford.at) - * - * [ 1998-06-13 ] - * - * *) A bugfix for the Page-Down problem - * - * *) Formerly when I used Page Down and Page Up, the cursor would be set - * to the first position in the menu box. Now lxdialog is a bit - * smarter and works more like other menu systems (just have a look at - * it). - * - * *) Formerly if I selected something my scrolling would be broken because - * lxdialog is re-invoked by the Menuconfig shell script, can't - * remember the last scrolling position, and just sets it so that the - * cursor is at the bottom of the box. Now it writes the temporary file - * lxdialog.scrltmp which contains this information. The file is - * deleted by lxdialog if the user leaves a submenu or enters a new - * one, but it would be nice if Menuconfig could make another "rm -f" - * just to be sure. Just try it out - you will recognise a difference! - * - * [ 1998-06-14 ] - * - * *) Now lxdialog is crash-safe against broken "lxdialog.scrltmp" files - * and menus change their size on the fly. - * - * *) If for some reason the last scrolling position is not saved by - * lxdialog, it sets the scrolling so that the selected item is in the - * middle of the menu box, not at the bottom. - * - * 02 January 1999, Michael Elizabeth Chastain (mec@shout.net) - * Reset 'scroll' to 0 if the value from lxdialog.scrltmp is bogus. - * This fixes a bug in Menuconfig where using ' ' to descend into menus - * would leave mis-synchronized lxdialog.scrltmp files lying around, - * fscanf would read in 'scroll', and eventually that value would get used. - */ - -#include "dialog.h" - -static int menu_width, item_x; - -/* - * Print menu item - */ -static void -print_item (WINDOW * win, const char *item, int choice, int selected, int hotkey) -{ - int j; - char menu_item[menu_width+1]; - - strncpy(menu_item, item, menu_width); - menu_item[menu_width] = 0; - j = first_alpha(menu_item, "YyNnMmHh"); - - /* Clear 'residue' of last item */ - wattrset (win, menubox_attr); - wmove (win, choice, 0); -#if OLD_NCURSES - { - int i; - for (i = 0; i < menu_width; i++) - waddch (win, ' '); - } -#else - wclrtoeol(win); -#endif - wattrset (win, selected ? item_selected_attr : item_attr); - mvwaddstr (win, choice, item_x, menu_item); - if (hotkey) { - wattrset (win, selected ? tag_key_selected_attr : tag_key_attr); - mvwaddch(win, choice, item_x+j, menu_item[j]); - } - if (selected) { - wmove (win, choice, item_x+1); - wrefresh (win); - } -} - -/* - * Print the scroll indicators. - */ -static void -print_arrows (WINDOW * win, int item_no, int scroll, - int y, int x, int height) -{ - int cur_y, cur_x; - - getyx(win, cur_y, cur_x); - - wmove(win, y, x); - - if (scroll > 0) { - wattrset (win, uarrow_attr); - waddch (win, ACS_UARROW); - waddstr (win, "(-)"); - } - else { - wattrset (win, menubox_attr); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - } - - y = y + height + 1; - wmove(win, y, x); - - if ((height < item_no) && (scroll + height < item_no)) { - wattrset (win, darrow_attr); - waddch (win, ACS_DARROW); - waddstr (win, "(+)"); - } - else { - wattrset (win, menubox_border_attr); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - waddch (win, ACS_HLINE); - } - - wmove(win, cur_y, cur_x); -} - -/* - * Display the termination buttons. - */ -static void -print_buttons (WINDOW *win, int height, int width, int selected) -{ - int x = width / 2 - 16; - int y = height - 2; - - print_button (win, "Select", y, x, selected == 0); - print_button (win, " Exit ", y, x + 12, selected == 1); - print_button (win, " Help ", y, x + 24, selected == 2); - - wmove(win, y, x+1+12*selected); - wrefresh (win); -} - -/* - * Display a menu for choosing among a number of options - */ -int -dialog_menu (const char *title, const char *prompt, int height, int width, - int menu_height, const char *current, int item_no, - const char * const * items) - -{ - int i, j, x, y, box_x, box_y; - int key = 0, button = 0, scroll = 0, choice = 0, first_item = 0, max_choice; - WINDOW *dialog, *menu; - FILE *f; - - max_choice = MIN (menu_height, item_no); - - /* center dialog box on screen */ - x = (COLS - width) / 2; - y = (LINES - height) / 2; - - draw_shadow (stdscr, y, x, height, width); - - dialog = newwin (height, width, y, x); - keypad (dialog, TRUE); - - draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr); - wattrset (dialog, border_attr); - mvwaddch (dialog, height - 3, 0, ACS_LTEE); - for (i = 0; i < width - 2; i++) - waddch (dialog, ACS_HLINE); - wattrset (dialog, dialog_attr); - wbkgdset (dialog, dialog_attr & A_COLOR); - waddch (dialog, ACS_RTEE); - - if (title != NULL && strlen(title) >= width-2 ) { - /* truncate long title -- mec */ - char * title2 = malloc(width-2+1); - memcpy( title2, title, width-2 ); - title2[width-2] = '\0'; - title = title2; - } - - if (title != NULL) { - wattrset (dialog, title_attr); - mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' '); - waddstr (dialog, (char *)title); - waddch (dialog, ' '); - } - - wattrset (dialog, dialog_attr); - print_autowrap (dialog, prompt, width - 2, 1, 3); - - menu_width = width - 6; - box_y = height - menu_height - 5; - 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); - - /* - * Find length of longest item in order to center menu. - * Set 'choice' to default item. - */ - item_x = 0; - for (i = 0; i < item_no; i++) { - item_x = MAX (item_x, MIN(menu_width, strlen (items[i * 2 + 1]) + 2)); - if (strcmp(current, items[i*2]) == 0) choice = i; - } - - item_x = (menu_width - item_x) / 2; - - /* get the scroll info from the temp file */ - if ( (f=fopen("lxdialog.scrltmp","r")) != NULL ) { - if ( (fscanf(f,"%d\n",&scroll) == 1) && (scroll <= choice) && - (scroll+max_choice > choice) && (scroll >= 0) && - (scroll+max_choice <= item_no) ) { - first_item = scroll; - choice = choice - scroll; - fclose(f); - } else { - scroll=0; - remove("lxdialog.scrltmp"); - fclose(f); - f=NULL; - } - } - if ( (choice >= max_choice) || (f==NULL && choice >= max_choice/2) ) { - if (choice >= item_no-max_choice/2) - scroll = first_item = item_no-max_choice; - else - scroll = first_item = choice - max_choice/2; - choice = choice - scroll; - } - - /* Print the menu */ - for (i=0; i < max_choice; i++) { - print_item (menu, items[(first_item + i) * 2 + 1], i, i == choice, - (items[(first_item + i)*2][0] != ':')); - } - - wnoutrefresh (menu); - - print_arrows(dialog, item_no, scroll, - box_y, box_x+item_x+1, menu_height); - - print_buttons (dialog, height, width, 0); - wmove (menu, choice, item_x+1); - wrefresh (menu); - - while (key != ESC) { - key = wgetch(menu); - - if (key < 256 && isalpha(key)) key = tolower(key); - - if (strchr("ynmh", key)) - i = max_choice; - else { - for (i = choice+1; i < max_choice; i++) { - j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh"); - if (key == tolower(items[(scroll+i)*2+1][j])) - break; - } - if (i == max_choice) - for (i = 0; i < max_choice; i++) { - j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh"); - if (key == tolower(items[(scroll+i)*2+1][j])) - break; - } - } - - if (i < max_choice || - key == KEY_UP || key == KEY_DOWN || - key == '-' || key == '+' || - key == KEY_PPAGE || key == KEY_NPAGE) { - - print_item (menu, items[(scroll+choice)*2+1], choice, FALSE, - (items[(scroll+choice)*2][0] != ':')); - - if (key == KEY_UP || key == '-') { - if (choice < 2 && scroll) { - /* Scroll menu down */ - scrollok (menu, TRUE); - wscrl (menu, -1); - scrollok (menu, FALSE); - - scroll--; - - print_item (menu, items[scroll * 2 + 1], 0, FALSE, - (items[scroll*2][0] != ':')); - } else - choice = MAX(choice - 1, 0); - - } else if (key == KEY_DOWN || key == '+') { - - print_item (menu, items[(scroll+choice)*2+1], choice, FALSE, - (items[(scroll+choice)*2][0] != ':')); - - if ((choice > max_choice-3) && - (scroll + max_choice < item_no) - ) { - /* Scroll menu up */ - scrollok (menu, TRUE); - wscrl (menu, 1); - scrollok (menu, FALSE); - - scroll++; - - print_item (menu, items[(scroll+max_choice-1)*2+1], - max_choice-1, FALSE, - (items[(scroll+max_choice-1)*2][0] != ':')); - } else - choice = MIN(choice+1, max_choice-1); - - } else if (key == KEY_PPAGE) { - scrollok (menu, TRUE); - for (i=0; (i < max_choice); i++) { - if (scroll > 0) { - wscrl (menu, -1); - scroll--; - print_item (menu, items[scroll * 2 + 1], 0, FALSE, - (items[scroll*2][0] != ':')); - } else { - if (choice > 0) - choice--; - } - } - scrollok (menu, FALSE); - - } else if (key == KEY_NPAGE) { - for (i=0; (i < max_choice); i++) { - if (scroll+max_choice < item_no) { - scrollok (menu, TRUE); - wscrl (menu, 1); - scrollok (menu, FALSE); - scroll++; - print_item (menu, items[(scroll+max_choice-1)*2+1], - max_choice-1, FALSE, - (items[(scroll+max_choice-1)*2][0] != ':')); - } else { - if (choice+1 < max_choice) - choice++; - } - } - - } else - choice = i; - - print_item (menu, items[(scroll+choice)*2+1], choice, TRUE, - (items[(scroll+choice)*2][0] != ':')); - - print_arrows(dialog, item_no, scroll, - box_y, box_x+item_x+1, menu_height); - - wnoutrefresh (dialog); - wrefresh (menu); - - continue; /* wait for another key press */ - } - - switch (key) { - case KEY_LEFT: - case TAB: - case KEY_RIGHT: - button = ((key == KEY_LEFT ? --button : ++button) < 0) - ? 2 : (button > 2 ? 0 : button); - - print_buttons(dialog, height, width, button); - wrefresh (menu); - break; - case ' ': - case 's': - case 'y': - case 'n': - case 'm': - case '/': - /* save scroll info */ - if ( (f=fopen("lxdialog.scrltmp","w")) != NULL ) { - fprintf(f,"%d\n",scroll); - fclose(f); - } - delwin (dialog); - fprintf(stderr, "%s\n", items[(scroll + choice) * 2]); - switch (key) { - case 's': return 3; - case 'y': return 3; - case 'n': return 4; - case 'm': return 5; - case ' ': return 6; - case '/': return 7; - } - return 0; - case 'h': - case '?': - button = 2; - case '\n': - delwin (dialog); - if (button == 2) - fprintf(stderr, "%s \"%s\"\n", - items[(scroll + choice) * 2], - items[(scroll + choice) * 2 + 1] + - first_alpha(items[(scroll + choice) * 2 + 1],"")); - else - fprintf(stderr, "%s\n", items[(scroll + choice) * 2]); - - remove("lxdialog.scrltmp"); - return button; - case 'e': - case 'x': - key = ESC; - case ESC: - break; - } - } - - delwin (dialog); - remove("lxdialog.scrltmp"); - return -1; /* ESC pressed */ -} |
