checklist.c revision 220749
1217309Snwhitehorn/* 2220749Snwhitehorn * $Id: checklist.c,v 1.124 2011/01/19 00:27:53 tom Exp $ 3217309Snwhitehorn * 4217309Snwhitehorn * checklist.c -- implements the checklist box 5217309Snwhitehorn * 6220749Snwhitehorn * Copyright 2000-2010,2011 Thomas E. Dickey 7217309Snwhitehorn * 8217309Snwhitehorn * This program is free software; you can redistribute it and/or modify 9217309Snwhitehorn * it under the terms of the GNU Lesser General Public License, version 2.1 10217309Snwhitehorn * as published by the Free Software Foundation. 11217309Snwhitehorn * 12217309Snwhitehorn * This program is distributed in the hope that it will be useful, but 13217309Snwhitehorn * WITHOUT ANY WARRANTY; without even the implied warranty of 14217309Snwhitehorn * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15217309Snwhitehorn * Lesser General Public License for more details. 16217309Snwhitehorn * 17217309Snwhitehorn * You should have received a copy of the GNU Lesser General Public 18217309Snwhitehorn * License along with this program; if not, write to 19217309Snwhitehorn * Free Software Foundation, Inc. 20217309Snwhitehorn * 51 Franklin St., Fifth Floor 21217309Snwhitehorn * Boston, MA 02110, USA. 22217309Snwhitehorn * 23217309Snwhitehorn * An earlier version of this program lists as authors: 24217309Snwhitehorn * Savio Lam (lam836@cs.cuhk.hk) 25217309Snwhitehorn * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension 26217309Snwhitehorn * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two 27217309Snwhitehorn */ 28217309Snwhitehorn 29217309Snwhitehorn#include <dialog.h> 30217309Snwhitehorn#include <dlg_keys.h> 31217309Snwhitehorn 32217309Snwhitehornstatic int list_width, check_x, item_x, checkflag; 33217309Snwhitehorn 34217309Snwhitehorn#define MIN_HIGH (1 + (5 * MARGIN)) 35217309Snwhitehorn 36217309Snwhitehorn#define LLEN(n) ((n) * CHECKBOX_TAGS) 37217309Snwhitehorn#define ItemData(i) &items[LLEN(i)] 38217309Snwhitehorn#define ItemName(i) items[LLEN(i)] 39217309Snwhitehorn#define ItemText(i) items[LLEN(i) + 1] 40217309Snwhitehorn#define ItemStatus(i) items[LLEN(i) + 2] 41217309Snwhitehorn#define ItemHelp(i) items[LLEN(i) + 3] 42217309Snwhitehorn 43217309Snwhitehornstatic void 44217309Snwhitehornprint_arrows(WINDOW *win, 45217309Snwhitehorn int box_x, 46217309Snwhitehorn int box_y, 47217309Snwhitehorn int scrollamt, 48217309Snwhitehorn int choice, 49217309Snwhitehorn int item_no, 50217309Snwhitehorn int list_height) 51217309Snwhitehorn{ 52217309Snwhitehorn dlg_draw_scrollbar(win, 53220749Snwhitehorn (long) (scrollamt), 54220749Snwhitehorn (long) (scrollamt), 55220749Snwhitehorn (long) (scrollamt + choice), 56220749Snwhitehorn (long) (item_no), 57217309Snwhitehorn box_x + check_x, 58217309Snwhitehorn box_x + list_width, 59217309Snwhitehorn box_y, 60217309Snwhitehorn box_y + list_height + 1, 61217309Snwhitehorn menubox_attr, 62217309Snwhitehorn menubox_border_attr); 63217309Snwhitehorn} 64217309Snwhitehorn 65217309Snwhitehorn/* 66217309Snwhitehorn * Print list item. The 'selected' parameter is true if 'choice' is the 67217309Snwhitehorn * current item. That one is colored differently from the other items. 68217309Snwhitehorn */ 69217309Snwhitehornstatic void 70217309Snwhitehornprint_item(WINDOW *win, 71217309Snwhitehorn DIALOG_LISTITEM * item, 72217309Snwhitehorn const char *states, 73217309Snwhitehorn int choice, 74217309Snwhitehorn int selected) 75217309Snwhitehorn{ 76220749Snwhitehorn chtype save = dlg_get_attrs(win); 77217309Snwhitehorn int i; 78217309Snwhitehorn chtype attr = A_NORMAL; 79217309Snwhitehorn const int *cols; 80217309Snwhitehorn const int *indx; 81217309Snwhitehorn int limit; 82217309Snwhitehorn 83217309Snwhitehorn /* Clear 'residue' of last item */ 84217309Snwhitehorn wattrset(win, menubox_attr); 85217309Snwhitehorn (void) wmove(win, choice, 0); 86217309Snwhitehorn for (i = 0; i < list_width; i++) 87217309Snwhitehorn (void) waddch(win, ' '); 88217309Snwhitehorn 89217309Snwhitehorn (void) wmove(win, choice, check_x); 90217309Snwhitehorn wattrset(win, selected ? check_selected_attr : check_attr); 91217309Snwhitehorn (void) wprintw(win, 92217309Snwhitehorn (checkflag == FLAG_CHECK) ? "[%c]" : "(%c)", 93217309Snwhitehorn states[item->state]); 94217309Snwhitehorn wattrset(win, menubox_attr); 95217309Snwhitehorn (void) waddch(win, ' '); 96217309Snwhitehorn 97217309Snwhitehorn if (strlen(item->name) != 0) { 98217309Snwhitehorn 99217309Snwhitehorn indx = dlg_index_wchars(item->name); 100217309Snwhitehorn 101217309Snwhitehorn wattrset(win, selected ? tag_key_selected_attr : tag_key_attr); 102217309Snwhitehorn (void) waddnstr(win, item->name, indx[1]); 103217309Snwhitehorn 104217309Snwhitehorn if ((int) strlen(item->name) > indx[1]) { 105217309Snwhitehorn limit = dlg_limit_columns(item->name, (item_x - check_x - 6), 1); 106217309Snwhitehorn if (limit > 1) { 107217309Snwhitehorn wattrset(win, selected ? tag_selected_attr : tag_attr); 108217309Snwhitehorn (void) waddnstr(win, 109217309Snwhitehorn item->name + indx[1], 110217309Snwhitehorn indx[limit] - indx[1]); 111217309Snwhitehorn } 112217309Snwhitehorn } 113217309Snwhitehorn } 114217309Snwhitehorn 115217309Snwhitehorn if (strlen(item->text) != 0) { 116217309Snwhitehorn cols = dlg_index_columns(item->text); 117217309Snwhitehorn limit = dlg_limit_columns(item->text, (getmaxx(win) - item_x + 1), 0); 118217309Snwhitehorn 119217309Snwhitehorn if (limit > 0) { 120217309Snwhitehorn (void) wmove(win, choice, item_x); 121217309Snwhitehorn wattrset(win, selected ? item_selected_attr : item_attr); 122217309Snwhitehorn dlg_print_text(win, item->text, cols[limit], &attr); 123217309Snwhitehorn } 124217309Snwhitehorn } 125217309Snwhitehorn 126217309Snwhitehorn if (selected) { 127217309Snwhitehorn dlg_item_help(item->help); 128217309Snwhitehorn } 129217309Snwhitehorn wattrset(win, save); 130217309Snwhitehorn} 131217309Snwhitehorn 132217309Snwhitehorn/* 133217309Snwhitehorn * This is an alternate interface to 'checklist' which allows the application 134217309Snwhitehorn * to read the list item states back directly without putting them in the 135217309Snwhitehorn * output buffer. It also provides for more than two states over which the 136217309Snwhitehorn * check/radio box can display. 137217309Snwhitehorn */ 138217309Snwhitehornint 139217309Snwhitehorndlg_checklist(const char *title, 140217309Snwhitehorn const char *cprompt, 141217309Snwhitehorn int height, 142217309Snwhitehorn int width, 143217309Snwhitehorn int list_height, 144217309Snwhitehorn int item_no, 145217309Snwhitehorn DIALOG_LISTITEM * items, 146217309Snwhitehorn const char *states, 147217309Snwhitehorn int flag, 148217309Snwhitehorn int *current_item) 149217309Snwhitehorn{ 150217309Snwhitehorn /* *INDENT-OFF* */ 151217309Snwhitehorn static DLG_KEYS_BINDING binding[] = { 152217309Snwhitehorn ENTERKEY_BINDINGS, 153217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 154217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 155217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 156217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 157217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_FIRST, KEY_HOME ), 158217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_LAST, KEY_END ), 159217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_LAST, KEY_LL ), 160217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_NEXT, '+' ), 161217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_NEXT, KEY_DOWN ), 162217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_NEXT, CHR_NEXT ), 163217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_PREV, '-' ), 164217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_PREV, KEY_UP ), 165217309Snwhitehorn DLG_KEYS_DATA( DLGK_ITEM_PREV, CHR_PREVIOUS ), 166217309Snwhitehorn DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ), 167217309Snwhitehorn DLG_KEYS_DATA( DLGK_PAGE_NEXT, DLGK_MOUSE(KEY_NPAGE) ), 168217309Snwhitehorn DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ), 169217309Snwhitehorn DLG_KEYS_DATA( DLGK_PAGE_PREV, DLGK_MOUSE(KEY_PPAGE) ), 170217309Snwhitehorn END_KEYS_BINDING 171217309Snwhitehorn }; 172217309Snwhitehorn /* *INDENT-ON* */ 173217309Snwhitehorn 174217309Snwhitehorn#ifdef KEY_RESIZE 175217309Snwhitehorn int old_height = height; 176217309Snwhitehorn int old_width = width; 177217309Snwhitehorn#endif 178217309Snwhitehorn int i, j, key2, found, x, y, cur_x, cur_y, box_x, box_y; 179217309Snwhitehorn int key = 0, fkey; 180217309Snwhitehorn int button = dialog_state.visit_items ? -1 : dlg_defaultno_button(); 181217309Snwhitehorn int choice = dlg_default_listitem(items); 182217309Snwhitehorn int scrollamt = 0; 183217309Snwhitehorn int max_choice; 184217309Snwhitehorn int was_mouse; 185217309Snwhitehorn int use_height; 186217309Snwhitehorn int use_width, name_width, text_width; 187217309Snwhitehorn int result = DLG_EXIT_UNKNOWN; 188217309Snwhitehorn int num_states; 189217309Snwhitehorn WINDOW *dialog, *list; 190217309Snwhitehorn char *prompt = dlg_strclone(cprompt); 191217309Snwhitehorn const char **buttons = dlg_ok_labels(); 192217309Snwhitehorn 193217309Snwhitehorn dlg_does_output(); 194217309Snwhitehorn dlg_tab_correct_str(prompt); 195217309Snwhitehorn 196217309Snwhitehorn#ifdef KEY_RESIZE 197217309Snwhitehorn retry: 198217309Snwhitehorn#endif 199217309Snwhitehorn 200217309Snwhitehorn use_height = list_height; 201217309Snwhitehorn if (use_height == 0) { 202217309Snwhitehorn use_width = dlg_calc_list_width(item_no, items) + 10; 203217309Snwhitehorn /* calculate height without items (4) */ 204217309Snwhitehorn dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, MAX(26, use_width)); 205217309Snwhitehorn dlg_calc_listh(&height, &use_height, item_no); 206217309Snwhitehorn } else { 207217309Snwhitehorn dlg_auto_size(title, prompt, &height, &width, MIN_HIGH + use_height, 26); 208217309Snwhitehorn } 209217309Snwhitehorn dlg_button_layout(buttons, &width); 210217309Snwhitehorn dlg_print_size(height, width); 211217309Snwhitehorn dlg_ctl_size(height, width); 212217309Snwhitehorn 213217309Snwhitehorn /* we need at least two states */ 214217309Snwhitehorn if (states == 0 || strlen(states) < 2) 215217309Snwhitehorn states = " *"; 216217309Snwhitehorn num_states = (int) strlen(states); 217217309Snwhitehorn 218217309Snwhitehorn checkflag = flag; 219217309Snwhitehorn 220217309Snwhitehorn x = dlg_box_x_ordinate(width); 221217309Snwhitehorn y = dlg_box_y_ordinate(height); 222217309Snwhitehorn 223217309Snwhitehorn dialog = dlg_new_window(height, width, y, x); 224217309Snwhitehorn dlg_register_window(dialog, "checklist", binding); 225217309Snwhitehorn dlg_register_buttons(dialog, "checklist", buttons); 226217309Snwhitehorn 227217309Snwhitehorn dlg_mouse_setbase(x, y); 228217309Snwhitehorn 229217309Snwhitehorn dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 230217309Snwhitehorn dlg_draw_bottom_box(dialog); 231217309Snwhitehorn dlg_draw_title(dialog, title); 232217309Snwhitehorn 233217309Snwhitehorn wattrset(dialog, dialog_attr); 234217309Snwhitehorn dlg_print_autowrap(dialog, prompt, height, width); 235217309Snwhitehorn 236217309Snwhitehorn list_width = width - 6; 237217309Snwhitehorn getyx(dialog, cur_y, cur_x); 238217309Snwhitehorn box_y = cur_y + 1; 239217309Snwhitehorn box_x = (width - list_width) / 2 - 1; 240217309Snwhitehorn 241217309Snwhitehorn /* 242217309Snwhitehorn * After displaying the prompt, we know how much space we really have. 243217309Snwhitehorn * Limit the list to avoid overwriting the ok-button. 244217309Snwhitehorn */ 245217309Snwhitehorn if (use_height + MIN_HIGH > height - cur_y) 246217309Snwhitehorn use_height = height - MIN_HIGH - cur_y; 247217309Snwhitehorn if (use_height <= 0) 248217309Snwhitehorn use_height = 1; 249217309Snwhitehorn 250217309Snwhitehorn max_choice = MIN(use_height, item_no); 251217309Snwhitehorn 252217309Snwhitehorn /* create new window for the list */ 253217309Snwhitehorn list = dlg_sub_window(dialog, use_height, list_width, 254217309Snwhitehorn y + box_y + 1, x + box_x + 1); 255217309Snwhitehorn 256217309Snwhitehorn /* draw a box around the list items */ 257217309Snwhitehorn dlg_draw_box(dialog, box_y, box_x, 258217309Snwhitehorn use_height + 2 * MARGIN, 259217309Snwhitehorn list_width + 2 * MARGIN, 260217309Snwhitehorn menubox_border_attr, menubox_attr); 261217309Snwhitehorn 262217309Snwhitehorn text_width = 0; 263217309Snwhitehorn name_width = 0; 264217309Snwhitehorn /* Find length of longest item to center checklist */ 265217309Snwhitehorn for (i = 0; i < item_no; i++) { 266217309Snwhitehorn text_width = MAX(text_width, dlg_count_columns(items[i].text)); 267217309Snwhitehorn name_width = MAX(name_width, dlg_count_columns(items[i].name)); 268217309Snwhitehorn } 269217309Snwhitehorn 270217309Snwhitehorn /* If the name+text is wider than the list is allowed, then truncate 271217309Snwhitehorn * one or both of them. If the name is no wider than 1/4 of the list, 272217309Snwhitehorn * leave it intact. 273217309Snwhitehorn */ 274217309Snwhitehorn use_width = (list_width - 6); 275217309Snwhitehorn if (text_width + name_width > use_width) { 276217309Snwhitehorn int need = (int) (0.25 * use_width); 277217309Snwhitehorn if (name_width > need) { 278217309Snwhitehorn int want = (int) (use_width * ((double) name_width) / 279217309Snwhitehorn (text_width + name_width)); 280217309Snwhitehorn name_width = (want > need) ? want : need; 281217309Snwhitehorn } 282217309Snwhitehorn text_width = use_width - name_width; 283217309Snwhitehorn } 284217309Snwhitehorn 285217309Snwhitehorn check_x = (use_width - (text_width + name_width)) / 2; 286217309Snwhitehorn item_x = name_width + check_x + 6; 287217309Snwhitehorn 288217309Snwhitehorn /* ensure we are scrolled to show the current choice */ 289217309Snwhitehorn if (choice >= (max_choice + scrollamt)) { 290217309Snwhitehorn scrollamt = choice - max_choice + 1; 291217309Snwhitehorn choice = max_choice - 1; 292217309Snwhitehorn } 293217309Snwhitehorn /* Print the list */ 294217309Snwhitehorn for (i = 0; i < max_choice; i++) 295217309Snwhitehorn print_item(list, 296217309Snwhitehorn &items[i + scrollamt], 297217309Snwhitehorn states, 298217309Snwhitehorn i, i == choice); 299217309Snwhitehorn (void) wnoutrefresh(list); 300217309Snwhitehorn 301217309Snwhitehorn /* register the new window, along with its borders */ 302217309Snwhitehorn dlg_mouse_mkbigregion(box_y + 1, box_x, use_height, list_width + 2, 303217309Snwhitehorn KEY_MAX, 1, 1, 1 /* by lines */ ); 304217309Snwhitehorn 305217309Snwhitehorn print_arrows(dialog, 306217309Snwhitehorn box_x, box_y, 307217309Snwhitehorn scrollamt, max_choice, item_no, use_height); 308217309Snwhitehorn 309217309Snwhitehorn dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 310217309Snwhitehorn 311217309Snwhitehorn while (result == DLG_EXIT_UNKNOWN) { 312217309Snwhitehorn if (button < 0) /* --visit-items */ 313217309Snwhitehorn wmove(dialog, box_y + choice + 1, box_x + check_x + 2); 314217309Snwhitehorn 315217309Snwhitehorn key = dlg_mouse_wgetch(dialog, &fkey); 316217309Snwhitehorn if (dlg_result_key(key, fkey, &result)) 317217309Snwhitehorn break; 318217309Snwhitehorn 319217309Snwhitehorn was_mouse = (fkey && is_DLGK_MOUSE(key)); 320217309Snwhitehorn if (was_mouse) 321217309Snwhitehorn key -= M_EVENT; 322217309Snwhitehorn 323217309Snwhitehorn if (was_mouse && (key >= KEY_MAX)) { 324217309Snwhitehorn getyx(dialog, cur_y, cur_x); 325217309Snwhitehorn i = (key - KEY_MAX); 326217309Snwhitehorn if (i < max_choice) { 327217309Snwhitehorn /* De-highlight current item */ 328217309Snwhitehorn print_item(list, 329217309Snwhitehorn &items[scrollamt + choice], 330217309Snwhitehorn states, 331217309Snwhitehorn choice, FALSE); 332217309Snwhitehorn /* Highlight new item */ 333217309Snwhitehorn choice = (key - KEY_MAX); 334217309Snwhitehorn print_item(list, 335217309Snwhitehorn &items[scrollamt + choice], 336217309Snwhitehorn states, 337217309Snwhitehorn choice, TRUE); 338217309Snwhitehorn (void) wnoutrefresh(list); 339217309Snwhitehorn (void) wmove(dialog, cur_y, cur_x); 340217309Snwhitehorn 341217309Snwhitehorn key = ' '; /* force the selected item to toggle */ 342217309Snwhitehorn } else { 343217309Snwhitehorn beep(); 344217309Snwhitehorn continue; 345217309Snwhitehorn } 346217309Snwhitehorn fkey = FALSE; 347217309Snwhitehorn } else if (was_mouse && key >= KEY_MIN) { 348217309Snwhitehorn key = dlg_lookup_key(dialog, key, &fkey); 349217309Snwhitehorn } 350217309Snwhitehorn 351217309Snwhitehorn /* 352217309Snwhitehorn * A space toggles the item status. We handle either a checklist 353217309Snwhitehorn * (any number of items can be selected) or radio list (zero or one 354217309Snwhitehorn * items can be selected). 355217309Snwhitehorn */ 356217309Snwhitehorn if (key == ' ') { 357217309Snwhitehorn int current = scrollamt + choice; 358217309Snwhitehorn int next = items[current].state + 1; 359217309Snwhitehorn 360217309Snwhitehorn if (next >= num_states) 361217309Snwhitehorn next = 0; 362217309Snwhitehorn 363217309Snwhitehorn getyx(dialog, cur_y, cur_x); 364217309Snwhitehorn if (flag == FLAG_CHECK) { /* checklist? */ 365217309Snwhitehorn items[current].state = next; 366217309Snwhitehorn print_item(list, 367217309Snwhitehorn &items[scrollamt + choice], 368217309Snwhitehorn states, 369217309Snwhitehorn choice, TRUE); 370217309Snwhitehorn } else { /* radiolist */ 371217309Snwhitehorn for (i = 0; i < item_no; i++) { 372217309Snwhitehorn if (i != current) { 373217309Snwhitehorn items[i].state = 0; 374217309Snwhitehorn } 375217309Snwhitehorn } 376217309Snwhitehorn if (items[current].state) { 377217309Snwhitehorn items[current].state = next ? next : 1; 378217309Snwhitehorn print_item(list, 379217309Snwhitehorn &items[current], 380217309Snwhitehorn states, 381217309Snwhitehorn choice, TRUE); 382217309Snwhitehorn } else { 383217309Snwhitehorn items[current].state = 1; 384217309Snwhitehorn for (i = 0; i < max_choice; i++) 385217309Snwhitehorn print_item(list, 386217309Snwhitehorn &items[scrollamt + i], 387217309Snwhitehorn states, 388217309Snwhitehorn i, i == choice); 389217309Snwhitehorn } 390217309Snwhitehorn } 391217309Snwhitehorn (void) wnoutrefresh(list); 392217309Snwhitehorn (void) wmove(dialog, cur_y, cur_x); 393217309Snwhitehorn wrefresh(dialog); 394217309Snwhitehorn continue; /* wait for another key press */ 395217309Snwhitehorn } 396217309Snwhitehorn 397217309Snwhitehorn /* 398217309Snwhitehorn * Check if key pressed matches first character of any item tag in 399217309Snwhitehorn * list. If there is more than one match, we will cycle through 400217309Snwhitehorn * each one as the same key is pressed repeatedly. 401217309Snwhitehorn */ 402217309Snwhitehorn found = FALSE; 403217309Snwhitehorn if (!fkey) { 404217309Snwhitehorn if (button < 0 || !dialog_state.visit_items) { 405217309Snwhitehorn for (j = scrollamt + choice + 1; j < item_no; j++) { 406217309Snwhitehorn if (dlg_match_char(dlg_last_getc(), items[j].name)) { 407217309Snwhitehorn found = TRUE; 408217309Snwhitehorn i = j - scrollamt; 409217309Snwhitehorn break; 410217309Snwhitehorn } 411217309Snwhitehorn } 412217309Snwhitehorn if (!found) { 413217309Snwhitehorn for (j = 0; j <= scrollamt + choice; j++) { 414217309Snwhitehorn if (dlg_match_char(dlg_last_getc(), items[j].name)) { 415217309Snwhitehorn found = TRUE; 416217309Snwhitehorn i = j - scrollamt; 417217309Snwhitehorn break; 418217309Snwhitehorn } 419217309Snwhitehorn } 420217309Snwhitehorn } 421217309Snwhitehorn if (found) 422217309Snwhitehorn dlg_flush_getc(); 423217309Snwhitehorn } else if ((j = dlg_char_to_button(key, buttons)) >= 0) { 424217309Snwhitehorn button = j; 425217309Snwhitehorn ungetch('\n'); 426217309Snwhitehorn continue; 427217309Snwhitehorn } 428217309Snwhitehorn } 429217309Snwhitehorn 430217309Snwhitehorn /* 431217309Snwhitehorn * A single digit (1-9) positions the selection to that line in the 432217309Snwhitehorn * current screen. 433217309Snwhitehorn */ 434217309Snwhitehorn if (!found 435217309Snwhitehorn && (key <= '9') 436217309Snwhitehorn && (key > '0') 437217309Snwhitehorn && (key - '1' < max_choice)) { 438217309Snwhitehorn found = TRUE; 439217309Snwhitehorn i = key - '1'; 440217309Snwhitehorn } 441217309Snwhitehorn 442217309Snwhitehorn if (!found) { 443217309Snwhitehorn if (fkey) { 444217309Snwhitehorn found = TRUE; 445217309Snwhitehorn switch (key) { 446217309Snwhitehorn case DLGK_ITEM_FIRST: 447217309Snwhitehorn i = -scrollamt; 448217309Snwhitehorn break; 449217309Snwhitehorn case DLGK_ITEM_LAST: 450217309Snwhitehorn i = item_no - 1 - scrollamt; 451217309Snwhitehorn break; 452217309Snwhitehorn case DLGK_PAGE_PREV: 453217309Snwhitehorn if (choice) 454217309Snwhitehorn i = 0; 455217309Snwhitehorn else if (scrollamt != 0) 456217309Snwhitehorn i = -MIN(scrollamt, max_choice); 457217309Snwhitehorn else 458217309Snwhitehorn continue; 459217309Snwhitehorn break; 460217309Snwhitehorn case DLGK_PAGE_NEXT: 461217309Snwhitehorn i = MIN(choice + max_choice, item_no - scrollamt - 1); 462217309Snwhitehorn break; 463217309Snwhitehorn case DLGK_ITEM_PREV: 464217309Snwhitehorn i = choice - 1; 465217309Snwhitehorn if (choice == 0 && scrollamt == 0) 466217309Snwhitehorn continue; 467217309Snwhitehorn break; 468217309Snwhitehorn case DLGK_ITEM_NEXT: 469217309Snwhitehorn i = choice + 1; 470217309Snwhitehorn if (scrollamt + choice >= item_no - 1) 471217309Snwhitehorn continue; 472217309Snwhitehorn break; 473217309Snwhitehorn default: 474217309Snwhitehorn found = FALSE; 475217309Snwhitehorn break; 476217309Snwhitehorn } 477217309Snwhitehorn } 478217309Snwhitehorn } 479217309Snwhitehorn 480217309Snwhitehorn if (found) { 481217309Snwhitehorn if (i != choice) { 482217309Snwhitehorn getyx(dialog, cur_y, cur_x); 483217309Snwhitehorn if (i < 0 || i >= max_choice) { 484217309Snwhitehorn#if defined(NCURSES_VERSION_MAJOR) && NCURSES_VERSION_MAJOR < 5 485217309Snwhitehorn /* 486217309Snwhitehorn * Using wscrl to assist ncurses scrolling is not needed 487217309Snwhitehorn * in version 5.x 488217309Snwhitehorn */ 489217309Snwhitehorn if (i == -1) { 490217309Snwhitehorn if (use_height > 1) { 491217309Snwhitehorn /* De-highlight current first item */ 492217309Snwhitehorn print_item(list, 493217309Snwhitehorn &items[scrollamt], 494217309Snwhitehorn states, 495217309Snwhitehorn 0, FALSE); 496217309Snwhitehorn scrollok(list, TRUE); 497217309Snwhitehorn wscrl(list, -1); 498217309Snwhitehorn scrollok(list, FALSE); 499217309Snwhitehorn } 500217309Snwhitehorn scrollamt--; 501217309Snwhitehorn print_item(list, 502217309Snwhitehorn &items[scrollamt], 503217309Snwhitehorn states, 504217309Snwhitehorn 0, TRUE); 505217309Snwhitehorn } else if (i == max_choice) { 506217309Snwhitehorn if (use_height > 1) { 507217309Snwhitehorn /* De-highlight current last item before scrolling up */ 508217309Snwhitehorn print_item(list, 509217309Snwhitehorn &items[scrollamt + max_choice - 1], 510217309Snwhitehorn states, 511217309Snwhitehorn max_choice - 1, FALSE); 512217309Snwhitehorn scrollok(list, TRUE); 513217309Snwhitehorn wscrl(list, 1); 514217309Snwhitehorn scrollok(list, FALSE); 515217309Snwhitehorn } 516217309Snwhitehorn scrollamt++; 517217309Snwhitehorn print_item(list, 518217309Snwhitehorn &items[scrollamt + max_choice - 1], 519217309Snwhitehorn states, 520217309Snwhitehorn max_choice - 1, TRUE); 521217309Snwhitehorn } else 522217309Snwhitehorn#endif 523217309Snwhitehorn { 524217309Snwhitehorn if (i < 0) { 525217309Snwhitehorn scrollamt += i; 526217309Snwhitehorn choice = 0; 527217309Snwhitehorn } else { 528217309Snwhitehorn choice = max_choice - 1; 529217309Snwhitehorn scrollamt += (i - max_choice + 1); 530217309Snwhitehorn } 531217309Snwhitehorn for (i = 0; i < max_choice; i++) { 532217309Snwhitehorn print_item(list, 533217309Snwhitehorn &items[scrollamt + i], 534217309Snwhitehorn states, 535217309Snwhitehorn i, i == choice); 536217309Snwhitehorn } 537217309Snwhitehorn } 538217309Snwhitehorn (void) wnoutrefresh(list); 539217309Snwhitehorn print_arrows(dialog, 540217309Snwhitehorn box_x, box_y, 541217309Snwhitehorn scrollamt, max_choice, item_no, use_height); 542217309Snwhitehorn } else { 543217309Snwhitehorn /* De-highlight current item */ 544217309Snwhitehorn print_item(list, 545217309Snwhitehorn &items[scrollamt + choice], 546217309Snwhitehorn states, 547217309Snwhitehorn choice, FALSE); 548217309Snwhitehorn /* Highlight new item */ 549217309Snwhitehorn choice = i; 550217309Snwhitehorn print_item(list, 551217309Snwhitehorn &items[scrollamt + choice], 552217309Snwhitehorn states, 553217309Snwhitehorn choice, TRUE); 554217309Snwhitehorn (void) wnoutrefresh(list); 555217309Snwhitehorn print_arrows(dialog, 556217309Snwhitehorn box_x, box_y, 557217309Snwhitehorn scrollamt, max_choice, item_no, use_height); 558217309Snwhitehorn (void) wmove(dialog, cur_y, cur_x); 559217309Snwhitehorn wrefresh(dialog); 560217309Snwhitehorn } 561217309Snwhitehorn } 562217309Snwhitehorn continue; /* wait for another key press */ 563217309Snwhitehorn } 564217309Snwhitehorn 565217309Snwhitehorn if (fkey) { 566217309Snwhitehorn switch (key) { 567217309Snwhitehorn case DLGK_ENTER: 568217309Snwhitehorn result = dlg_ok_buttoncode(button); 569217309Snwhitehorn break; 570217309Snwhitehorn case DLGK_FIELD_PREV: 571217309Snwhitehorn button = dlg_prev_button(buttons, button); 572217309Snwhitehorn dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 573217309Snwhitehorn FALSE, width); 574217309Snwhitehorn break; 575217309Snwhitehorn case DLGK_FIELD_NEXT: 576217309Snwhitehorn button = dlg_next_button(buttons, button); 577217309Snwhitehorn dlg_draw_buttons(dialog, height - 2, 0, buttons, button, 578217309Snwhitehorn FALSE, width); 579217309Snwhitehorn break; 580217309Snwhitehorn#ifdef KEY_RESIZE 581217309Snwhitehorn case KEY_RESIZE: 582217309Snwhitehorn /* reset data */ 583217309Snwhitehorn height = old_height; 584217309Snwhitehorn width = old_width; 585217309Snwhitehorn /* repaint */ 586217309Snwhitehorn dlg_clear(); 587217309Snwhitehorn dlg_del_window(dialog); 588217309Snwhitehorn refresh(); 589217309Snwhitehorn dlg_mouse_free_regions(); 590217309Snwhitehorn goto retry; 591217309Snwhitehorn#endif 592217309Snwhitehorn default: 593217309Snwhitehorn if (was_mouse) { 594217309Snwhitehorn if ((key2 = dlg_ok_buttoncode(key)) >= 0) { 595217309Snwhitehorn result = key2; 596217309Snwhitehorn break; 597217309Snwhitehorn } 598217309Snwhitehorn beep(); 599217309Snwhitehorn } 600217309Snwhitehorn } 601217309Snwhitehorn } else { 602217309Snwhitehorn beep(); 603217309Snwhitehorn } 604217309Snwhitehorn } 605217309Snwhitehorn 606217309Snwhitehorn dlg_del_window(dialog); 607217309Snwhitehorn dlg_mouse_free_regions(); 608217309Snwhitehorn free(prompt); 609217309Snwhitehorn *current_item = (scrollamt + choice); 610217309Snwhitehorn return result; 611217309Snwhitehorn} 612217309Snwhitehorn 613217309Snwhitehorn/* 614217309Snwhitehorn * Display a dialog box with a list of options that can be turned on or off 615217309Snwhitehorn * The `flag' parameter is used to select between radiolist and checklist. 616217309Snwhitehorn */ 617217309Snwhitehornint 618217309Snwhitehorndialog_checklist(const char *title, 619217309Snwhitehorn const char *cprompt, 620217309Snwhitehorn int height, 621217309Snwhitehorn int width, 622217309Snwhitehorn int list_height, 623217309Snwhitehorn int item_no, 624217309Snwhitehorn char **items, 625217309Snwhitehorn int flag) 626217309Snwhitehorn{ 627217309Snwhitehorn int result; 628217309Snwhitehorn int i; 629217309Snwhitehorn DIALOG_LISTITEM *listitems; 630217309Snwhitehorn bool separate_output = ((flag == FLAG_CHECK) 631217309Snwhitehorn && (dialog_vars.separate_output)); 632217309Snwhitehorn bool show_status = FALSE; 633217309Snwhitehorn int current = 0; 634217309Snwhitehorn 635217309Snwhitehorn listitems = dlg_calloc(DIALOG_LISTITEM, (size_t) item_no + 1); 636217309Snwhitehorn assert_ptr(listitems, "dialog_checklist"); 637217309Snwhitehorn 638217309Snwhitehorn for (i = 0; i < item_no; ++i) { 639217309Snwhitehorn listitems[i].name = ItemName(i); 640217309Snwhitehorn listitems[i].text = ItemText(i); 641217309Snwhitehorn listitems[i].help = ((dialog_vars.item_help) 642217309Snwhitehorn ? ItemHelp(i) 643217309Snwhitehorn : dlg_strempty()); 644217309Snwhitehorn listitems[i].state = !dlg_strcmp(ItemStatus(i), "on"); 645217309Snwhitehorn } 646220749Snwhitehorn dlg_align_columns(&listitems[0].text, (int) sizeof(DIALOG_LISTITEM), item_no); 647217309Snwhitehorn 648217309Snwhitehorn result = dlg_checklist(title, 649217309Snwhitehorn cprompt, 650217309Snwhitehorn height, 651217309Snwhitehorn width, 652217309Snwhitehorn list_height, 653217309Snwhitehorn item_no, 654217309Snwhitehorn listitems, 655217309Snwhitehorn NULL, 656217309Snwhitehorn flag, 657217309Snwhitehorn ¤t); 658217309Snwhitehorn 659217309Snwhitehorn switch (result) { 660217309Snwhitehorn case DLG_EXIT_OK: /* FALLTHRU */ 661217309Snwhitehorn case DLG_EXIT_EXTRA: 662217309Snwhitehorn show_status = TRUE; 663217309Snwhitehorn break; 664217309Snwhitehorn case DLG_EXIT_HELP: 665217309Snwhitehorn dlg_add_result("HELP "); 666217309Snwhitehorn show_status = dialog_vars.help_status; 667217309Snwhitehorn if (USE_ITEM_HELP(listitems[current].help)) { 668217309Snwhitehorn if (show_status) { 669217309Snwhitehorn if (separate_output) { 670217309Snwhitehorn dlg_add_string(listitems[current].help); 671217309Snwhitehorn dlg_add_separator(); 672217309Snwhitehorn } else { 673217309Snwhitehorn dlg_add_quoted(listitems[current].help); 674217309Snwhitehorn } 675217309Snwhitehorn } else { 676217309Snwhitehorn dlg_add_string(listitems[current].help); 677217309Snwhitehorn } 678217309Snwhitehorn result = DLG_EXIT_ITEM_HELP; 679217309Snwhitehorn } else { 680217309Snwhitehorn if (show_status) { 681217309Snwhitehorn if (separate_output) { 682217309Snwhitehorn dlg_add_string(listitems[current].name); 683217309Snwhitehorn dlg_add_separator(); 684217309Snwhitehorn } else { 685217309Snwhitehorn dlg_add_quoted(listitems[current].name); 686217309Snwhitehorn } 687217309Snwhitehorn } else { 688217309Snwhitehorn dlg_add_string(listitems[current].name); 689217309Snwhitehorn } 690217309Snwhitehorn } 691217309Snwhitehorn break; 692217309Snwhitehorn } 693217309Snwhitehorn 694217309Snwhitehorn if (show_status) { 695217309Snwhitehorn for (i = 0; i < item_no; i++) { 696217309Snwhitehorn if (listitems[i].state) { 697217309Snwhitehorn if (separate_output) { 698217309Snwhitehorn dlg_add_string(listitems[i].name); 699217309Snwhitehorn dlg_add_separator(); 700217309Snwhitehorn } else { 701217309Snwhitehorn if (dlg_need_separator()) 702217309Snwhitehorn dlg_add_separator(); 703217309Snwhitehorn dlg_add_string(listitems[i].name); 704217309Snwhitehorn } 705217309Snwhitehorn } 706217309Snwhitehorn } 707217309Snwhitehorn } 708217309Snwhitehorn 709220749Snwhitehorn dlg_free_columns(&listitems[0].text, (int) sizeof(DIALOG_LISTITEM), item_no); 710217309Snwhitehorn free(listitems); 711217309Snwhitehorn return result; 712217309Snwhitehorn} 713