1 /* 2 * $Id: msgbox.c,v 1.75 2012/12/01 01:48:08 tom Exp $ 3 * 4 * msgbox.c -- implements the message box and info box 5 * 6 * Copyright 2000-2011,2012 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 TRAVERSE_BINDINGS, 43 SCROLLKEY_BINDINGS, 44 END_KEYS_BINDING 45 }; 46 /* *INDENT-ON* */ 47 48 int x, y, last = 0, page; 49 int button; 50 int key = 0, fkey; 51 int result = DLG_EXIT_UNKNOWN; 52 WINDOW *dialog = 0; 53 char *prompt = dlg_strclone(cprompt); 54 const char **buttons = dlg_ok_label(); 55 int offset = 0; 56 int check; 57 bool show = TRUE; 58 int min_width = (pauseopt == 1 ? 12 : 0); 59 int save_nocancel = dialog_vars.nocancel; 60 #ifdef KEY_RESIZE 61 int req_high; 62 int req_wide; 63 #endif 64 65 dialog_vars.nocancel = TRUE; 66 button = dlg_default_button(); 67 68 #ifdef KEY_RESIZE 69 req_high = height; 70 req_wide = width; 71 restart: 72 #endif 73 74 dlg_button_layout(buttons, &min_width); 75 76 dlg_tab_correct_str(prompt); 77 dlg_auto_size(title, prompt, &height, &width, 78 (pauseopt == 1 ? 2 : 0), 79 min_width); 80 dlg_print_size(height, width); 81 dlg_ctl_size(height, width); 82 83 x = dlg_box_x_ordinate(width); 84 y = dlg_box_y_ordinate(height); 85 86 #ifdef KEY_RESIZE 87 if (dialog != 0) 88 dlg_move_window(dialog, height, width, y, x); 89 else 90 #endif 91 { 92 dialog = dlg_new_window(height, width, y, x); 93 dlg_register_window(dialog, "msgbox", binding); 94 dlg_register_buttons(dialog, "msgbox", buttons); 95 } 96 page = height - (1 + 3 * MARGIN); 97 98 dlg_mouse_setbase(x, y); 99 100 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 101 dlg_draw_title(dialog, title); 102 103 (void) wattrset(dialog, dialog_attr); 104 105 if (pauseopt) { 106 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 107 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n'); 108 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 109 dlg_draw_helpline(dialog, FALSE); 110 111 while (result == DLG_EXIT_UNKNOWN) { 112 if (show) { 113 last = dlg_print_scrolled(dialog, prompt, offset, 114 page, width, pauseopt); 115 dlg_trace_win(dialog); 116 show = FALSE; 117 } 118 key = dlg_mouse_wgetch(dialog, &fkey); 119 if (dlg_result_key(key, fkey, &result)) 120 break; 121 122 if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) { 123 result = dlg_ok_buttoncode(check); 124 break; 125 } 126 127 if (fkey) { 128 switch (key) { 129 #ifdef KEY_RESIZE 130 case KEY_RESIZE: 131 dlg_clear(); 132 height = req_high; 133 width = req_wide; 134 show = TRUE; 135 goto restart; 136 #endif 137 case DLGK_FIELD_NEXT: 138 button = dlg_next_button(buttons, button); 139 if (button < 0) 140 button = 0; 141 dlg_draw_buttons(dialog, 142 height - 2, 0, 143 buttons, button, 144 FALSE, width); 145 break; 146 case DLGK_FIELD_PREV: 147 button = dlg_prev_button(buttons, button); 148 if (button < 0) 149 button = 0; 150 dlg_draw_buttons(dialog, 151 height - 2, 0, 152 buttons, button, 153 FALSE, width); 154 break; 155 case DLGK_ENTER: 156 result = dlg_ok_buttoncode(button); 157 break; 158 default: 159 if (is_DLGK_MOUSE(key)) { 160 result = dlg_ok_buttoncode(key - M_EVENT); 161 if (result < 0) 162 result = DLG_EXIT_OK; 163 } else if (dlg_check_scrolled(key, 164 last, 165 page, 166 &show, 167 &offset) == 0) { 168 } else { 169 beep(); 170 } 171 break; 172 } 173 } else { 174 beep(); 175 } 176 } 177 } else { 178 dlg_print_scrolled(dialog, prompt, offset, page, width, pauseopt); 179 dlg_draw_helpline(dialog, FALSE); 180 wrefresh(dialog); 181 dlg_trace_win(dialog); 182 result = DLG_EXIT_OK; 183 } 184 185 dlg_del_window(dialog); 186 dlg_mouse_free_regions(); 187 free(prompt); 188 189 dialog_vars.nocancel = save_nocancel; 190 191 return result; 192 } 193