1 /* 2 * $Id: msgbox.c,v 1.81 2018/06/21 23:29:59 tom Exp $ 3 * 4 * msgbox.c -- implements the message box and info box 5 * 6 * Copyright 2000-2012,2018 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, last = 0, page; 49 int button; 50 int key = 0, 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 int check; 57 bool show = TRUE; 58 int min_width = (pauseopt == 1 ? 12 : 0); 59 bool save_nocancel = dialog_vars.nocancel; 60 #ifdef KEY_RESIZE 61 int req_high; 62 int req_wide; 63 #endif 64 65 DLG_TRACE(("# msgbox args:\n")); 66 DLG_TRACE2S("title", title); 67 DLG_TRACE2S("message", cprompt); 68 DLG_TRACE2N("height", height); 69 DLG_TRACE2N("width", width); 70 DLG_TRACE2N("pauseopt", pauseopt); 71 72 dialog_vars.nocancel = TRUE; 73 button = dlg_default_button(); 74 75 #ifdef KEY_RESIZE 76 req_high = height; 77 req_wide = width; 78 restart: 79 #endif 80 81 dlg_button_layout(buttons, &min_width); 82 83 prompt = dlg_strclone(cprompt); 84 dlg_tab_correct_str(prompt); 85 dlg_auto_size(title, prompt, &height, &width, 86 (pauseopt == 1 ? 2 : 0), 87 min_width); 88 dlg_print_size(height, width); 89 dlg_ctl_size(height, width); 90 91 x = dlg_box_x_ordinate(width); 92 y = dlg_box_y_ordinate(height); 93 94 #ifdef KEY_RESIZE 95 if (dialog != 0) 96 dlg_move_window(dialog, height, width, y, x); 97 else 98 #endif 99 { 100 dialog = dlg_new_window(height, width, y, x); 101 dlg_register_window(dialog, "msgbox", binding); 102 dlg_register_buttons(dialog, "msgbox", buttons); 103 } 104 page = height - (1 + 3 * MARGIN); 105 106 dlg_mouse_setbase(x, y); 107 108 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 109 dlg_draw_title(dialog, title); 110 111 dlg_attrset(dialog, dialog_attr); 112 113 if (pauseopt) { 114 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 115 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n'); 116 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width); 117 dlg_draw_helpline(dialog, FALSE); 118 119 while (result == DLG_EXIT_UNKNOWN) { 120 if (show) { 121 last = dlg_print_scrolled(dialog, prompt, offset, 122 page, width, pauseopt); 123 dlg_trace_win(dialog); 124 show = FALSE; 125 } 126 key = dlg_mouse_wgetch(dialog, &fkey); 127 if (dlg_result_key(key, fkey, &result)) 128 break; 129 130 if (!fkey && (check = dlg_char_to_button(key, buttons)) >= 0) { 131 result = dlg_ok_buttoncode(check); 132 break; 133 } 134 135 if (fkey) { 136 switch (key) { 137 #ifdef KEY_RESIZE 138 case KEY_RESIZE: 139 dlg_will_resize(dialog); 140 dlg_clear(); 141 free(prompt); 142 height = req_high; 143 width = req_wide; 144 show = TRUE; 145 goto restart; 146 #endif 147 case DLGK_FIELD_NEXT: 148 button = dlg_next_button(buttons, button); 149 if (button < 0) 150 button = 0; 151 dlg_draw_buttons(dialog, 152 height - 2, 0, 153 buttons, button, 154 FALSE, width); 155 break; 156 case DLGK_FIELD_PREV: 157 button = dlg_prev_button(buttons, button); 158 if (button < 0) 159 button = 0; 160 dlg_draw_buttons(dialog, 161 height - 2, 0, 162 buttons, button, 163 FALSE, width); 164 break; 165 case DLGK_ENTER: 166 result = dlg_ok_buttoncode(button); 167 break; 168 default: 169 if (is_DLGK_MOUSE(key)) { 170 result = dlg_ok_buttoncode(key - M_EVENT); 171 if (result < 0) 172 result = DLG_EXIT_OK; 173 } else if (dlg_check_scrolled(key, 174 last, 175 page, 176 &show, 177 &offset) == 0) { 178 } else { 179 beep(); 180 } 181 break; 182 } 183 } else { 184 beep(); 185 } 186 } 187 } else { 188 dlg_print_scrolled(dialog, prompt, offset, page, width, pauseopt); 189 dlg_draw_helpline(dialog, FALSE); 190 wrefresh(dialog); 191 dlg_trace_win(dialog); 192 result = DLG_EXIT_OK; 193 } 194 195 dlg_del_window(dialog); 196 dlg_mouse_free_regions(); 197 free(prompt); 198 199 dialog_vars.nocancel = save_nocancel; 200 201 return result; 202 } 203