yesno.c revision 4658
13515Sache/* 23515Sache * yesno.c -- implements the yes/no box 33515Sache * 43515Sache * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) 53515Sache * 63515Sache * This program is free software; you can redistribute it and/or 73515Sache * modify it under the terms of the GNU General Public License 83515Sache * as published by the Free Software Foundation; either version 2 93515Sache * of the License, or (at your option) any later version. 103515Sache * 113515Sache * This program is distributed in the hope that it will be useful, 123515Sache * but WITHOUT ANY WARRANTY; without even the implied warranty of 133515Sache * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 143515Sache * GNU General Public License for more details. 153515Sache * 163515Sache * You should have received a copy of the GNU General Public License 173515Sache * along with this program; if not, write to the Free Software 183515Sache * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 193515Sache */ 203515Sache 213515Sache 223740Sache#include <dialog.h> 233515Sache#include "dialog.priv.h" 243515Sache 253515Sache 263515Sache/* 273515Sache * Display a dialog box with two buttons - Yes and No 283515Sache */ 293515Sacheint dialog_yesno(unsigned char *title, unsigned char * prompt, int height, int width) 303515Sache{ 314527Sache int i, j, x, y, key = 0, button = 0; 323515Sache WINDOW *dialog; 333515Sache 344527Sache if (height < 0) 354527Sache height = strheight(prompt)+4; 364527Sache if (width < 0) { 374527Sache i = strwidth(prompt); 384527Sache j = strwidth(title); 394527Sache width = MAX(i,j)+4; 404527Sache } 414527Sache 424658Sache if (width > COLS) 434658Sache width = COLS; 444658Sache if (height > LINES) 454658Sache height = LINES; 463515Sache /* center dialog box on screen */ 473515Sache x = (COLS - width)/2; 483515Sache y = (LINES - height)/2; 493515Sache 503515Sache#ifdef HAVE_NCURSES 513515Sache if (use_shadow) 523515Sache draw_shadow(stdscr, y, x, height, width); 533515Sache#endif 543515Sache dialog = newwin(height, width, y, x); 554024Sache if (dialog == NULL) { 564024Sache endwin(); 574024Sache fprintf(stderr, "\nnewwin(%d,%d,%d,%d) failed, maybe wrong dims\n", height,width,y,x); 584024Sache exit(1); 594024Sache } 603515Sache keypad(dialog, TRUE); 613515Sache 623515Sache draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 633515Sache wattrset(dialog, border_attr); 643515Sache wmove(dialog, height-3, 0); 653515Sache waddch(dialog, ACS_LTEE); 663515Sache for (i = 0; i < width-2; i++) 673515Sache waddch(dialog, ACS_HLINE); 683515Sache wattrset(dialog, dialog_attr); 693515Sache waddch(dialog, ACS_RTEE); 703515Sache wmove(dialog, height-2, 1); 713515Sache for (i = 0; i < width-2; i++) 723515Sache waddch(dialog, ' '); 733515Sache 743515Sache if (title != NULL) { 753515Sache wattrset(dialog, title_attr); 763515Sache wmove(dialog, 0, (width - strlen(title))/2 - 1); 773515Sache waddch(dialog, ' '); 783515Sache waddstr(dialog, title); 793515Sache waddch(dialog, ' '); 803515Sache } 813515Sache wattrset(dialog, dialog_attr); 823950Sache wmove(dialog, 1, 2); 833950Sache print_autowrap(dialog, prompt, height-1, width-2, width, 1, 2, TRUE, FALSE); 843515Sache 853515Sache x = width/2-10; 863515Sache y = height-2; 873515Sache print_button(dialog, " No ", y, x+13, FALSE); 883515Sache print_button(dialog, " Yes ", y, x, TRUE); 893515Sache wrefresh(dialog); 903515Sache 913515Sache while (key != ESC) { 923515Sache key = wgetch(dialog); 933515Sache switch (key) { 943515Sache case 'Y': 953515Sache case 'y': 963515Sache delwin(dialog); 973515Sache return 0; 983515Sache case 'N': 993515Sache case 'n': 1003515Sache delwin(dialog); 1013515Sache return 1; 1023515Sache case KEY_BTAB: 1033515Sache case TAB: 1043515Sache case KEY_UP: 1053515Sache case KEY_DOWN: 1063515Sache case KEY_LEFT: 1073515Sache case KEY_RIGHT: 1083515Sache if (!button) { 1093515Sache button = 1; /* Indicates "No" button is selected */ 1103515Sache print_button(dialog, " Yes ", y, x, FALSE); 1113515Sache print_button(dialog, " No ", y, x+13, TRUE); 1123515Sache } 1133515Sache else { 1143515Sache button = 0; /* Indicates "Yes" button is selected */ 1153515Sache print_button(dialog, " No ", y, x+13, FALSE); 1163515Sache print_button(dialog, " Yes ", y, x, TRUE); 1173515Sache } 1183515Sache wrefresh(dialog); 1193515Sache break; 1203515Sache case ' ': 1213950Sache case '\r': 1223515Sache case '\n': 1233515Sache delwin(dialog); 1243515Sache return button; 1253515Sache case ESC: 1263515Sache break; 1273515Sache } 1283515Sache } 1293515Sache 1303515Sache delwin(dialog); 1313515Sache return -1; /* ESC pressed */ 1323515Sache} 1333515Sache/* End of dialog_yesno() */ 134