xref: /titanic_41/usr/src/lib/libeti/menu/common/post.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 /*
27  * Copyright (c) 1997, by Sun Mircrosystems, Inc.
28  * All rights reserved.
29  */
30 
31 #pragma	ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.12	*/
32 
33 /*LINTLIBRARY*/
34 
35 #include <sys/types.h>
36 #include "private.h"
37 
38 void
_post_item(MENU * m,ITEM * k)39 _post_item(MENU *m, ITEM *k)
40 {
41 	int foreon = FALSE;
42 	int backon = FALSE;
43 	int greyon = FALSE;
44 	chtype c;
45 	int i;
46 
47 	/* Display the mark region of the item */
48 
49 	if (!Selectable(k)) {
50 		(void) wattron(Win(m), Grey(m));
51 		greyon = TRUE;
52 		for (i = Marklen(m); i > 0; i--) {
53 			(void) waddch(Win(m), ' ');
54 		}
55 	} else {
56 		if (Value(k) || k == Current(m)) {
57 			(void) wattron(Win(m), Fore(m));
58 			foreon = TRUE;
59 		} else {
60 			(void) wattron(Win(m), Back(m));
61 			backon = TRUE;
62 		}
63 
64 		/* Display the mark */
65 		if (Value(k) || (OneValue(m) && k == Current(m))) {
66 			if (Marklen(m)) {
67 				(void) waddstr(Win(m), Mark(m));
68 			}
69 		} else {
70 			for (i = Marklen(m); i > 0; i--) {
71 				(void) waddch(Win(m), ' ');
72 			}
73 		}
74 	}
75 
76 	/* Display the name */
77 
78 	(void) waddnstr(Win(m), Name(k), MaxName(m));
79 	if (ShowDesc(m) && MaxDesc(m) != 0) {
80 		c = Pad(m);
81 	} else {
82 		c = ' ';
83 	}
84 	for (i = MaxName(m) - NameLen(k); i > 0; i--) {
85 		(void) waddch(Win(m), c);
86 	}
87 
88 	/* Display the description */
89 
90 	if (ShowDesc(m) && MaxDesc(m) != 0) {
91 		(void) waddch(Win(m), Pad(m));
92 		if (DescriptionLen(k) != 0) {
93 			(void) waddstr(Win(m), Description(k));
94 		}
95 		for (i = MaxDesc(m) - DescriptionLen(k); i > 0; i--) {
96 			(void) waddch(Win(m), ' ');
97 		}
98 	}
99 	if (foreon) {
100 		(void) wattroff(Win(m), Fore(m));
101 	}
102 	if (backon) {
103 		(void) wattroff(Win(m), Back(m));
104 	}
105 	if (greyon) {
106 		(void) wattroff(Win(m), Grey(m));
107 	}
108 }
109 
110 void
_move_post_item(MENU * m,ITEM * k)111 _move_post_item(MENU *m, ITEM *k)
112 {
113 	(void) wmove(Win(m), Y(k), X(k) * (Itemlen(m)+1));
114 	_post_item(m, k);
115 }
116 
117 int
unpost_menu(MENU * m)118 unpost_menu(MENU *m)
119 {
120 	if (!m) {
121 		return (E_BAD_ARGUMENT);
122 	}
123 	if (Indriver(m)) {
124 		return (E_BAD_STATE);
125 	}
126 	if (!Posted(m)) {
127 		return (E_NOT_POSTED);
128 	}
129 	Iterm(m);
130 	Mterm(m);
131 	(void) werase(US(m));
132 	wsyncup(US(m));
133 	(void) delwin(Sub(m));
134 	Sub(m) = (WINDOW *) NULL;
135 	(void) delwin(Win(m));
136 	Win(m) = (WINDOW *) NULL;
137 	ResetPost(m);
138 	return (E_OK);
139 }
140 
141 /*
142  * This routine draws the item indicated by oldcur first and then
143  * draws the item indicated by Current.  This will have the affect
144  * of unselecting the first item and selecting the next.
145  */
146 void
_movecurrent(MENU * m,ITEM * oldcur)147 _movecurrent(MENU *m, ITEM *oldcur)
148 {
149 	if (oldcur != Current(m)) {
150 		_move_post_item(m, oldcur);
151 		_move_post_item(m, Current(m));
152 	}
153 }
154 
155 /*
156  * Draw the entire menu into the super window
157  * This routine assumes all items have been linked and
158  * that the menu is in at least a pre-post state.
159  */
160 
161 void
_draw(MENU * m)162 _draw(MENU *m)
163 {
164 	int k;
165 	ITEM *i, *j;
166 	ITEM *si, *sj;
167 
168 	k = 0;		/* Line number */
169 	i = IthItem(m, 0);
170 	si = Cyclic(m) ? i : (ITEM *) NULL;
171 	do {
172 		(void) wmove(Win(m), k++, 0);
173 		j = i;
174 		sj = Cyclic(m) ? j : (ITEM *) NULL;
175 		do {
176 			_post_item(m, j);
177 			if ((j = Right(j)) != sj) {
178 				(void) waddch(Win(m), ' ');
179 			}
180 		} while (j != sj);
181 	} while ((i = Down(i)) != si);
182 }
183 
184 int
post_menu(MENU * m)185 post_menu(MENU *m)
186 {
187 	ITEM **ip;
188 	int r, c;		/* visible # of rows and cols */
189 
190 	if (!m) {
191 		return (E_BAD_ARGUMENT);
192 	}
193 	if (Indriver(m)) {
194 		return (E_BAD_STATE);
195 	}
196 	if (Posted(m)) {
197 		return (E_POSTED);
198 	}
199 	/* Make sure there is at least one item present */
200 	if (Items(m) && IthItem(m, 0)) {
201 		getmaxyx(US(m), r, c);
202 
203 		/* Make sure the menu fits into the window horizontally */
204 		if (c < Width(m) || r < Height(m)) {
205 			return (E_NO_ROOM);
206 		}
207 
208 		/* Create the menu window and derived windows */
209 		if ((Win(m) = newwin(Rows(m), Width(m), 0, 0)) ==
210 		    (WINDOW *) NULL) {
211 			return (E_SYSTEM_ERROR);
212 		}
213 
214 		/*
215 		 * Take the minimum of the height of the menu (Height), the
216 		 * physical height of the window (r), and the number of rows
217 		 * in the menu (Rows).
218 		 */
219 		r = min(min(r, Rows(m)), Height(m));
220 
221 		if ((Sub(m) = derwin(Win(m), r, Width(m), 0, 0)) ==
222 		    (WINDOW *)  NULL) {
223 			return (E_SYSTEM_ERROR);
224 		}
225 
226 		/* If needed, link all items in the menu */
227 		if (LinkNeeded(m)) {
228 			_link_items(m);
229 		}
230 
231 		SetPost(m);
232 
233 		/* If only one value can be set then unset all values */
234 		/* to start. */
235 		if (OneValue(m)) {
236 			for (ip = Items(m); *ip; ip++) {
237 				Value(*ip) = FALSE;
238 			}
239 		}
240 
241 		/* Go do the drawing of the menu */
242 		_draw(m);
243 
244 		Minit(m);
245 		Iinit(m);
246 		_show(m);		/* Display the menu */
247 		return (E_OK);
248 	}
249 	return (E_NOT_CONNECTED);
250 }
251