1 /* 2 * $Id: msgbox.c,v 1.64 2010/01/15 10:50:17 tom Exp $ 3 * 4 * msgbox.c -- implements the message box and info box 5 * 6 * Copyright 2000-2009,2010 Thomas E. Dickey 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU Lesser General Public License, version 2.1 10 * as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this program; if not, write to 19 * Free Software Foundation, Inc. 20 * 51 Franklin St., Fifth Floor 21 * Boston, MA 02110, USA. 22 * 23 * An earlier version of this program lists as authors: 24 * Savio Lam (lam836@cs.cuhk.hk) 25 */ 26 27 #include <dialog.h> 28 #include <dlg_keys.h> 29 30 /* 31 * Display a message box. Program will pause and display an "OK" button 32 * if the parameter 'pauseopt' is non-zero. 33 */ 34 int 35 dialog_msgbox(const char *title, const char *cprompt, int height, int width, 36 int pauseopt) 37 { 38 /* *INDENT-OFF* */ 39 static DLG_KEYS_BINDING binding[] = { 40 ENTERKEY_BINDINGS, 41 DLG_KEYS_DATA( DLGK_ENTER, ' ' ), 42 SCROLLKEY_BINDINGS, 43 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ), 44 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 45 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 46 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP ), 47 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 48 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 49 END_KEYS_BINDING 50 }; 51 /* *INDENT-ON* */ 52 53 int x, y, last = 0, page; 54 int button = 0; 55 int key = 0, fkey; 56 int result = DLG_EXIT_UNKNOWN; 57 WINDOW *dialog = 0; 58 char *prompt = dlg_strclone(cprompt); 59 const char **buttons = dlg_ok_label(); 60 int offset = 0; 61 int check; 62 bool show = TRUE; 63 int min_width = (pauseopt == 1 ? 12 : 0); 64 65 #ifdef KEY_RESIZE 66 int req_high = height; 67 int req_wide = width; 68 restart: 69 #endif 70 71 dlg_button_layout(buttons, &min_width); 72 73 dlg_tab_correct_str(prompt); 74 dlg_auto_size(title, prompt, &height, &width, 75 (pauseopt == 1 ? 2 : 0), 76 min_width); 77 dlg_print_size(height, width); 78 dlg_ctl_size(height, width); 79 80 x = dlg_box_x_ordinate(width); 81 y = dlg_box_y_ordinate(height); 82 83 #ifdef KEY_RESIZE 84 if (dialog != 0) 85 dlg_move_window(dialog, height, width, y, x); 86 else 87 #endif 88 { 89 dialog = dlg_new_window(height, width, y, x); 90 dlg_register_window(dialog, "msgbox", binding); 91 dlg_register_buttons(dialog, "msgbox", buttons); 92 } 93 page = height - (1 + 3 * MARGIN); 94 95 dlg_mouse_setbase(x, y); 96 97 dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 98 dlg_draw_title(dialog, title); 99 100 wattrset(dialog, dialog_attr); 101 102 if (pauseopt) { 103 dlg_draw_bottom_box(dialog); 104 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n'); 105 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 106 107 while (result == DLG_EXIT_UNKNOWN) { 108 if (show) { 109 last = dlg_print_scrolled(dialog, prompt, offset, 110 page, width, pauseopt); 111 show = FALSE; 112 } 113 key = dlg_mouse_wgetch(dialog, &fkey); 114 if (dlg_result_key(key, fkey, &result)) 115 break; 116 117 if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) { 118 result = check ? DLG_EXIT_HELP : DLG_EXIT_OK; 119 break; 120 } 121 122 if (fkey) { 123 switch (key) { 124 #ifdef KEY_RESIZE 125 case KEY_RESIZE: 126 dlg_clear(); 127 height = req_high; 128 width = req_wide; 129 show = TRUE; 130 goto restart; 131 #endif 132 case DLGK_FIELD_NEXT: 133 button = dlg_next_button(buttons, button); 134 if (button < 0) 135 button = 0; 136 dlg_draw_buttons(dialog, 137 height - 2, 0, 138 buttons, button, 139 FALSE, width); 140 break; 141 case DLGK_FIELD_PREV: 142 button = dlg_prev_button(buttons, button); 143 if (button < 0) 144 button = 0; 145 dlg_draw_buttons(dialog, 146 height - 2, 0, 147 buttons, button, 148 FALSE, width); 149 break; 150 case DLGK_ENTER: 151 result = button ? DLG_EXIT_HELP : DLG_EXIT_OK; 152 break; 153 case DLGK_MOUSE(0): 154 result = DLG_EXIT_OK; 155 break; 156 case DLGK_MOUSE(1): 157 result = DLG_EXIT_HELP; 158 break; 159 default: 160 if (dlg_check_scrolled(key, 161 last, 162 page, 163 &show, 164 &offset) == 0) 165 break; 166 beep(); 167 break; 168 } 169 } else { 170 beep(); 171 } 172 } 173 } else { 174 dlg_print_scrolled(dialog, prompt, offset, page, width, pauseopt); 175 wrefresh(dialog); 176 result = DLG_EXIT_OK; 177 } 178 179 dlg_del_window(dialog); 180 dlg_mouse_free_regions(); 181 free(prompt); 182 return result; 183 } 184