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 ([email protected])
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
dialog_msgbox(const char * title,const char * cprompt,int height,int width,int pauseopt)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