xref: /dragonfly/usr.bin/window/cmd1.c (revision d4ef6694)
1 /*	@(#)cmd1.c	8.1 (Berkeley) 6/6/93	*/
2 /*	$NetBSD: cmd1.c,v 1.7 2003/08/07 11:17:22 agc Exp $	*/
3 
4 /*
5  * Copyright (c) 1983, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * Edward Wang at The University of California, Berkeley.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include "defs.h"
37 #include "char.h"
38 
39 void
40 c_window(void)
41 {
42 	int col, row, xcol, xrow;
43 	int id;
44 
45 	if ((id = findid()) < 0)
46 		return;
47 	if (!terse)
48 		wwputs("New window (upper left corner): ", cmdwin);
49 	col = 0;
50 	row = 1;
51 	wwadd(boxwin, framewin->ww_back);
52 	for (;;) {
53 		wwbox(boxwin, row - 1, col - 1, 3, 3);
54 		wwsetcursor(row, col);
55 		while (wwpeekc() < 0)
56 			wwiomux();
57 		switch (getpos(&row, &col, row > 1, 0,
58 			wwnrow - 1, wwncol - 1)) {
59 		case 3:
60 			wwunbox(boxwin);
61 			wwdelete(boxwin);
62 			return;
63 		case 2:
64 			wwunbox(boxwin);
65 			break;
66 		case 1:
67 			wwunbox(boxwin);
68 		case 0:
69 			continue;
70 		}
71 		break;
72 	}
73 	if (!terse)
74 		wwputs("\nNew window (lower right corner): ", cmdwin);
75 	xcol = col;
76 	xrow = row;
77 	for (;;) {
78 		wwbox(boxwin, row - 1, col - 1,
79 			xrow - row + 3, xcol - col + 3);
80 		wwsetcursor(xrow, xcol);
81 		while (wwpeekc() < 0)
82 			wwiomux();
83 		switch (getpos(&xrow, &xcol, row, col, wwnrow - 1, wwncol - 1))
84 		{
85 		case 3:
86 			wwunbox(boxwin);
87 			wwdelete(boxwin);
88 			return;
89 		case 2:
90 			wwunbox(boxwin);
91 			break;
92 		case 1:
93 			wwunbox(boxwin);
94 		case 0:
95 			continue;
96 		}
97 		break;
98 	}
99 	wwdelete(boxwin);
100 	if (!terse)
101 		wwputc('\n', cmdwin);
102 	wwcurtowin(cmdwin);
103 	(void) openwin(id, row, col, xrow-row+1, xcol-col+1, default_nline,
104 	    (char *) 0, WWT_PTY, WWU_HASFRAME, default_shellfile,
105 	    default_shell);
106 }
107 
108 int
109 getpos(int *row, int *col, int minrow, int mincol, int maxrow, int maxcol)
110 {
111 	static int scount;
112 	int count;
113 	int c;
114 	int oldrow = *row, oldcol = *col;
115 
116 	while ((c = wwgetc()) >= 0) {
117 		switch (c) {
118 		case '0': case '1': case '2': case '3': case '4':
119 		case '5': case '6': case '7': case '8': case '9':
120 			scount = scount * 10 + c - '0';
121 			continue;
122 		}
123 		count = scount ? scount : 1;
124 		scount = 0;
125 		switch (c) {
126 		case 'h':
127 			if ((*col -= count) < mincol)
128 				*col = mincol;
129 			break;
130 		case 'H':
131 			*col = mincol;
132 			break;
133 		case 'l':
134 			if ((*col += count) > maxcol)
135 				*col = maxcol;
136 			break;
137 		case 'L':
138 			*col = maxcol;
139 			break;
140 		case 'j':
141 			if ((*row += count) > maxrow)
142 				*row = maxrow;
143 			break;
144 		case 'J':
145 			*row = maxrow;
146 			break;
147 		case 'k':
148 			if ((*row -= count) < minrow)
149 				*row = minrow;
150 			break;
151 		case 'K':
152 			*row = minrow;
153 			break;
154 		case ctrl('['):
155 			if (!terse)
156 				wwputs("\nCancelled.  ", cmdwin);
157 			return 3;
158 		case '\r':
159 			return 2;
160 		default:
161 			if (!terse)
162 				wwputs("\nType [hjklHJKL] to move, return to enter position, escape to cancel.", cmdwin);
163 			wwbell();
164 		}
165 	}
166 	return oldrow != *row || oldcol != *col;
167 }
168