yesno.c revision 217309
1217309Snwhitehorn/* 2217309Snwhitehorn * $Id: yesno.c,v 1.49 2010/01/15 10:54:54 tom Exp $ 3217309Snwhitehorn * 4217309Snwhitehorn * yesno.c -- implements the yes/no box 5217309Snwhitehorn * 6217309Snwhitehorn * Copyright 1999-2009,2010 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 */ 26217309Snwhitehorn 27217309Snwhitehorn#include <dialog.h> 28217309Snwhitehorn#include <dlg_keys.h> 29217309Snwhitehorn 30217309Snwhitehorn/* 31217309Snwhitehorn * Display a dialog box with two buttons - Yes and No. 32217309Snwhitehorn */ 33217309Snwhitehornint 34217309Snwhitehorndialog_yesno(const char *title, const char *cprompt, int height, int width) 35217309Snwhitehorn{ 36217309Snwhitehorn /* *INDENT-OFF* */ 37217309Snwhitehorn static DLG_KEYS_BINDING binding[] = { 38217309Snwhitehorn ENTERKEY_BINDINGS, 39217309Snwhitehorn DLG_KEYS_DATA( DLGK_ENTER, ' ' ), 40217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ), 41217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 42217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 43217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP ), 44217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 45217309Snwhitehorn DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 46217309Snwhitehorn SCROLLKEY_BINDINGS, 47217309Snwhitehorn END_KEYS_BINDING 48217309Snwhitehorn }; 49217309Snwhitehorn /* *INDENT-ON* */ 50217309Snwhitehorn 51217309Snwhitehorn int x, y; 52217309Snwhitehorn int key = 0, fkey; 53217309Snwhitehorn int code; 54217309Snwhitehorn int button = dlg_defaultno_button(); 55217309Snwhitehorn WINDOW *dialog = 0; 56217309Snwhitehorn int result = DLG_EXIT_UNKNOWN; 57217309Snwhitehorn char *prompt = dlg_strclone(cprompt); 58217309Snwhitehorn const char **buttons = dlg_yes_labels(); 59217309Snwhitehorn int min_width = 25; 60217309Snwhitehorn bool show = TRUE; 61217309Snwhitehorn int page, last = 0, offset = 0; 62217309Snwhitehorn 63217309Snwhitehorn#ifdef KEY_RESIZE 64217309Snwhitehorn int req_high = height; 65217309Snwhitehorn int req_wide = width; 66217309Snwhitehorn restart: 67217309Snwhitehorn#endif 68217309Snwhitehorn 69217309Snwhitehorn dlg_tab_correct_str(prompt); 70217309Snwhitehorn dlg_button_layout(buttons, &min_width); 71217309Snwhitehorn dlg_auto_size(title, prompt, &height, &width, 2, min_width); 72217309Snwhitehorn dlg_print_size(height, width); 73217309Snwhitehorn dlg_ctl_size(height, width); 74217309Snwhitehorn 75217309Snwhitehorn x = dlg_box_x_ordinate(width); 76217309Snwhitehorn y = dlg_box_y_ordinate(height); 77217309Snwhitehorn 78217309Snwhitehorn#ifdef KEY_RESIZE 79217309Snwhitehorn if (dialog != 0) 80217309Snwhitehorn dlg_move_window(dialog, height, width, y, x); 81217309Snwhitehorn else 82217309Snwhitehorn#endif 83217309Snwhitehorn { 84217309Snwhitehorn dialog = dlg_new_window(height, width, y, x); 85217309Snwhitehorn dlg_register_window(dialog, "yesno", binding); 86217309Snwhitehorn dlg_register_buttons(dialog, "yesno", buttons); 87217309Snwhitehorn } 88217309Snwhitehorn 89217309Snwhitehorn dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 90217309Snwhitehorn dlg_draw_bottom_box(dialog); 91217309Snwhitehorn dlg_draw_title(dialog, title); 92217309Snwhitehorn 93217309Snwhitehorn wattrset(dialog, dialog_attr); 94217309Snwhitehorn 95217309Snwhitehorn page = height - (1 + 3 * MARGIN); 96217309Snwhitehorn dlg_draw_buttons(dialog, 97217309Snwhitehorn height - 2 * MARGIN, 0, 98217309Snwhitehorn buttons, button, FALSE, width); 99217309Snwhitehorn 100217309Snwhitehorn while (result == DLG_EXIT_UNKNOWN) { 101217309Snwhitehorn if (show) { 102217309Snwhitehorn last = dlg_print_scrolled(dialog, prompt, offset, 103217309Snwhitehorn page, width, TRUE); 104217309Snwhitehorn show = FALSE; 105217309Snwhitehorn } 106217309Snwhitehorn key = dlg_mouse_wgetch(dialog, &fkey); 107217309Snwhitehorn if (dlg_result_key(key, fkey, &result)) 108217309Snwhitehorn break; 109217309Snwhitehorn if ((code = dlg_char_to_button(key, buttons)) >= 0) { 110217309Snwhitehorn result = dlg_ok_buttoncode(code); 111217309Snwhitehorn break; 112217309Snwhitehorn } 113217309Snwhitehorn /* handle function keys */ 114217309Snwhitehorn if (fkey) { 115217309Snwhitehorn switch (key) { 116217309Snwhitehorn case DLGK_FIELD_NEXT: 117217309Snwhitehorn button = dlg_next_button(buttons, button); 118217309Snwhitehorn if (button < 0) 119217309Snwhitehorn button = 0; 120217309Snwhitehorn dlg_draw_buttons(dialog, 121217309Snwhitehorn height - 2, 0, 122217309Snwhitehorn buttons, button, 123217309Snwhitehorn FALSE, width); 124217309Snwhitehorn break; 125217309Snwhitehorn case DLGK_FIELD_PREV: 126217309Snwhitehorn button = dlg_prev_button(buttons, button); 127217309Snwhitehorn if (button < 0) 128217309Snwhitehorn button = 0; 129217309Snwhitehorn dlg_draw_buttons(dialog, 130217309Snwhitehorn height - 2, 0, 131217309Snwhitehorn buttons, button, 132217309Snwhitehorn FALSE, width); 133217309Snwhitehorn break; 134217309Snwhitehorn case DLGK_ENTER: 135217309Snwhitehorn result = dlg_yes_buttoncode(button); 136217309Snwhitehorn break; 137217309Snwhitehorn#ifdef KEY_RESIZE 138217309Snwhitehorn case KEY_RESIZE: 139217309Snwhitehorn dlg_clear(); 140217309Snwhitehorn height = req_high; 141217309Snwhitehorn width = req_wide; 142217309Snwhitehorn goto restart; 143217309Snwhitehorn#endif 144217309Snwhitehorn default: 145217309Snwhitehorn if (is_DLGK_MOUSE(key)) { 146217309Snwhitehorn result = dlg_yes_buttoncode(key - M_EVENT); 147217309Snwhitehorn if (result < 0) 148217309Snwhitehorn result = DLG_EXIT_OK; 149217309Snwhitehorn } else if (dlg_check_scrolled(key, last, page, 150217309Snwhitehorn &show, &offset) != 0) { 151217309Snwhitehorn beep(); 152217309Snwhitehorn } 153217309Snwhitehorn break; 154217309Snwhitehorn } 155217309Snwhitehorn } else { 156217309Snwhitehorn beep(); 157217309Snwhitehorn } 158217309Snwhitehorn } 159217309Snwhitehorn 160217309Snwhitehorn dlg_del_window(dialog); 161217309Snwhitehorn dlg_mouse_free_regions(); 162217309Snwhitehorn free(prompt); 163217309Snwhitehorn return result; 164217309Snwhitehorn} 165