1 /* 2 * $Id: msgbox.c,v 1.89 2020/11/23 00:32:02 tom Exp $ 3 * 4 * msgbox.c -- implements the message box and info box 5 * 6 * Copyright 2000-2019,2020 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 SCROLLKEY_BINDINGS, 43 TRAVERSE_BINDINGS, 44 END_KEYS_BINDING 45 }; 46 /* *INDENT-ON* */ 47 48 int x, y, page; 49 int button; 50 int key, fkey; 51 int result = DLG_EXIT_UNKNOWN; 52 WINDOW *dialog = 0; 53 char *prompt; 54 const char **buttons = dlg_ok_label(); 55 int offset = 0; 56 bool show = TRUE; 57 int min_width = (pauseopt == 1 ? 12 : 0); 58 bool save_nocancel = dialog_vars.nocancel; 59 #ifdef KEY_RESIZE 60 int req_high; 61 int req_wide; 62 #endif 63 64 DLG_TRACE(("# msgbox args:\n")); 65 DLG_TRACE2S("title", title); 66 DLG_TRACE2S("message", cprompt); 67 DLG_TRACE2N("height", height); 68 DLG_TRACE2N("width", width); 69 DLG_TRACE2N("pauseopt", pauseopt); 70 71 dialog_vars.nocancel = TRUE; 72 button = dlg_default_button(); 73 74 #ifdef KEY_RESIZE 75 req_high = height; 76 req_wide = width; 77 restart: 78 #endif 79 80 dlg_button_layout(buttons, &min_width); 81 82 prompt = dlg_strclone(cprompt); 83 dlg_tab_correct_str(prompt); 84 dlg_auto_size(title, prompt, &height, &width, 85 (pauseopt == 1 ? 2 : 0), 86 min_width); 87 dlg_print_size(height, width); 88 dlg_ctl_size(height, width); 89 90 x = dlg_box_x_ordinate(width); 91 y = dlg_box_y_ordinate(height); 92 93 dialog = dlg_new_window(height, width, y, x); 94 dlg_register_window(dialog, "msgbox", binding); 95 dlg_register_buttons(dialog, "msgbox", buttons); 96 97 page = height - (1 + 3 * MARGIN); 98 99 dlg_mouse_setbase(x, y); 100 101 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 102 dlg_draw_title(dialog, title); 103 104 dlg_attrset(dialog, dialog_attr); 105 106 if (pauseopt) { 107 int last = 0; 108 109 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 110 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n'); 111 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 112 dlg_draw_helpline(dialog, FALSE); 113 114 while (result == DLG_EXIT_UNKNOWN) { 115 int check; 116 117 if (show) { 118 last = dlg_print_scrolled(dialog, prompt, offset, 119 page, width, pauseopt); 120 dlg_trace_win(dialog); 121 show = FALSE; 122 } 123 key = dlg_mouse_wgetch(dialog, &fkey); 124 if (dlg_result_key(key, fkey, &result)) { 125 if (!dlg_button_key(result, &button, &key, &fkey)) 126 break; 127 } 128 if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) { 129 result = dlg_ok_buttoncode(check); 130 break; 131 } 132 133 if (fkey) { 134 switch (key) { 135 #ifdef KEY_RESIZE 136 case KEY_RESIZE: 137 dlg_will_resize(dialog); 138 free(prompt); 139 height = req_high; 140 width = req_wide; 141 show = TRUE; 142 _dlg_resize_cleanup(dialog); 143 goto restart; 144 #endif 145 case DLGK_FIELD_NEXT: 146 button = dlg_next_button(buttons, button); 147 if (button < 0) 148 button = 0; 149 dlg_draw_buttons(dialog, 150 height - 2, 0, 151 buttons, button, 152 FALSE, width); 153 break; 154 case DLGK_FIELD_PREV: 155 button = dlg_prev_button(buttons, button); 156 if (button < 0) 157 button = 0; 158 dlg_draw_buttons(dialog, 159 height - 2, 0, 160 buttons, button, 161 FALSE, width); 162 break; 163 case DLGK_ENTER: 164 result = dlg_enter_buttoncode(button); 165 break; 166 case DLGK_LEAVE: 167 result = dlg_ok_buttoncode(button); 168 break; 169 default: 170 if (is_DLGK_MOUSE(key)) { 171 result = dlg_ok_buttoncode(key - M_EVENT); 172 if (result < 0) 173 result = DLG_EXIT_OK; 174 } else if (dlg_check_scrolled(key, 175 last, 176 page, 177 &show, 178 &offset) == 0) { 179 } else { 180 beep(); 181 } 182 break; 183 } 184 } else if (key > 0) { 185 beep(); 186 } 187 } 188 } else { 189 dlg_print_scrolled(dialog, prompt, offset, page, width, pauseopt); 190 dlg_draw_helpline(dialog, FALSE); 191 wrefresh(dialog); 192 dlg_trace_win(dialog); 193 result = DLG_EXIT_OK; 194 } 195 dlg_add_last_key(-1); 196 197 dlg_del_window(dialog); 198 dlg_mouse_free_regions(); 199 free(prompt); 200 201 dialog_vars.nocancel = save_nocancel; 202 203 return result; 204 } 205