1 /* 2 * $Id: msgbox.c,v 1.66 2011/06/27 08:36:28 tom Exp $ 3 * 4 * msgbox.c -- implements the message box and info box 5 * 6 * Copyright 2000-2010,2011 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 HELPKEY_BINDINGS, 41 ENTERKEY_BINDINGS, 42 DLG_KEYS_DATA( DLGK_ENTER, ' ' ), 43 SCROLLKEY_BINDINGS, 44 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ), 45 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), 46 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), 47 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP ), 48 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), 49 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), 50 END_KEYS_BINDING 51 }; 52 /* *INDENT-ON* */ 53 54 int x, y, last = 0, page; 55 int button = 0; 56 int key = 0, fkey; 57 int result = DLG_EXIT_UNKNOWN; 58 WINDOW *dialog = 0; 59 char *prompt = dlg_strclone(cprompt); 60 const char **buttons = dlg_ok_label(); 61 int offset = 0; 62 int check; 63 bool show = TRUE; 64 int min_width = (pauseopt == 1 ? 12 : 0); 65 66 #ifdef KEY_RESIZE 67 int req_high = height; 68 int req_wide = width; 69 restart: 70 #endif 71 72 dlg_button_layout(buttons, &min_width); 73 74 dlg_tab_correct_str(prompt); 75 dlg_auto_size(title, prompt, &height, &width, 76 (pauseopt == 1 ? 2 : 0), 77 min_width); 78 dlg_print_size(height, width); 79 dlg_ctl_size(height, width); 80 81 x = dlg_box_x_ordinate(width); 82 y = dlg_box_y_ordinate(height); 83 84 #ifdef KEY_RESIZE 85 if (dialog != 0) 86 dlg_move_window(dialog, height, width, y, x); 87 else 88 #endif 89 { 90 dialog = dlg_new_window(height, width, y, x); 91 dlg_register_window(dialog, "msgbox", binding); 92 dlg_register_buttons(dialog, "msgbox", buttons); 93 } 94 page = height - (1 + 3 * MARGIN); 95 96 dlg_mouse_setbase(x, y); 97 98 dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 99 dlg_draw_title(dialog, title); 100 101 wattrset(dialog, dialog_attr); 102 103 if (pauseopt) { 104 dlg_draw_bottom_box(dialog); 105 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n'); 106 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 107 dlg_draw_helpline(dialog, FALSE); 108 109 while (result == DLG_EXIT_UNKNOWN) { 110 if (show) { 111 last = dlg_print_scrolled(dialog, prompt, offset, 112 page, width, pauseopt); 113 show = FALSE; 114 } 115 key = dlg_mouse_wgetch(dialog, &fkey); 116 if (dlg_result_key(key, fkey, &result)) 117 break; 118 119 if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) { 120 result = check ? DLG_EXIT_HELP : DLG_EXIT_OK; 121 break; 122 } 123 124 if (fkey) { 125 switch (key) { 126 #ifdef KEY_RESIZE 127 case KEY_RESIZE: 128 dlg_clear(); 129 height = req_high; 130 width = req_wide; 131 show = TRUE; 132 goto restart; 133 #endif 134 case DLGK_FIELD_NEXT: 135 button = dlg_next_button(buttons, button); 136 if (button < 0) 137 button = 0; 138 dlg_draw_buttons(dialog, 139 height - 2, 0, 140 buttons, button, 141 FALSE, width); 142 break; 143 case DLGK_FIELD_PREV: 144 button = dlg_prev_button(buttons, button); 145 if (button < 0) 146 button = 0; 147 dlg_draw_buttons(dialog, 148 height - 2, 0, 149 buttons, button, 150 FALSE, width); 151 break; 152 case DLGK_ENTER: 153 result = button ? DLG_EXIT_HELP : DLG_EXIT_OK; 154 break; 155 case DLGK_MOUSE(0): 156 result = DLG_EXIT_OK; 157 break; 158 case DLGK_MOUSE(1): 159 result = DLG_EXIT_HELP; 160 break; 161 default: 162 if (dlg_check_scrolled(key, 163 last, 164 page, 165 &show, 166 &offset) == 0) 167 break; 168 beep(); 169 break; 170 } 171 } else { 172 beep(); 173 } 174 } 175 } else { 176 dlg_print_scrolled(dialog, prompt, offset, page, width, pauseopt); 177 dlg_draw_helpline(dialog, FALSE); 178 wrefresh(dialog); 179 result = DLG_EXIT_OK; 180 } 181 182 dlg_del_window(dialog); 183 dlg_mouse_free_regions(); 184 free(prompt); 185 return result; 186 } 187