1 /* $Id: main.c,v 1.9 2007/02/28 12:47:35 tamentis Exp $
2  *
3  * Copyright (c) 2007 Bertrand Janin <tamentis@neopulsar.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 
29 #include <time.h>
30 #include <string.h>
31 #include <stdlib.h>
32 #include <unistd.h>
33 #include <err.h>
34 #include <curses.h>
35 
36 #include "tbclock.h"
37 
38 
39 struct tbclock_data tbc;
40 
41 
42 /* tbc_next_help_value - rotate through different reading helps */
43 void
tbc_next_help_value()44 tbc_next_help_value()
45 {
46 	unsigned int tm, lm;
47 
48 	tm = tbc.format.top_margin + tbc.format.dot_h / 2;
49 	lm = tbc.format.width - tbc.format.left_margin / 2 - 1;
50 
51 	if (tbc.options.helper > 2)
52 		tbc.options.helper = 0;
53 	else
54 		tbc.options.helper++;
55 
56 }
57 
58 
59 /* tbc_set_default - set the starting vars, default options */
60 void
tbc_set_default()61 tbc_set_default()
62 {
63 	tbc.bigbang = time(NULL);
64 
65 	tbc.format.width = 80;
66 	tbc.format.height = 24;
67 
68 	tbc.options.frame = tbc.options.frame_default = 1;
69 	tbc.options.border = tbc.options.border_default = 1;
70 	tbc.options.dots = 1;
71 	tbc.options.vertical = 0;
72 	tbc.options.helper = 0;
73 	tbc.options.ampm = 0;
74 
75 	tbc.colors.hour = COLOR_BLUE;
76 	tbc.colors.minute = COLOR_RED;
77 	tbc.colors.second = COLOR_YELLOW;
78 	tbc.colors.tenth = COLOR_GREEN;
79 }
80 
81 
82 
83 /* tbc_configure - setup layout and all those things, could be called from
84  * anywhere, when term is resized, at the beginning of modules... it
85  * deals with weither something is tolerated or not depending of
86  * a size. */
87 void
tbc_configure()88 tbc_configure()
89 {
90 
91 	/* terminal is too small, removing frame & border */
92 	if (tbc.format.height < 10 || tbc.format.width < 19)
93 		tbc.options.frame = tbc.options.border = 0;
94 	else {
95 		tbc.options.frame = tbc.options.frame_default;
96 		tbc.options.border = tbc.options.border_default;
97 	}
98 
99 	/* term not wide enough for horizontal helper */
100 	if (!tbc.options.vertical && tbc.format.width < 8
101 			&& tbc.options.helper & 1)
102 		tbc.options.helper --;
103 
104 	/* term is not tall enough for bottom help in vertical mode */
105 	if (tbc.options.vertical && tbc.format.height < 5
106 			&& tbc.options.helper > 0)
107 		tbc.options.helper = 0;
108 
109 	/* term is not tall enough for bottom help */
110 	if (tbc.format.height < 4 && tbc.options.helper > 1)
111 		tbc.options.helper -= 2;
112 
113 	/* height of a dot (term height - frame - spaces - helper) */
114 	tbc.format.dot_h =
115 	    ( tbc.format.height
116 		- tbc.options.frame * 2
117 		- (tbc.format.res_y - 1) * tbc.options.border
118 		- (!tbc.options.vertical && tbc.options.helper > 1 ? 1 : 0)
119 		- (tbc.options.vertical && tbc.options.helper ? 1 : 0)
120 	    ) / tbc.format.res_y;
121 
122 	/* width of a dot */
123 	tbc.format.dot_w =
124 	    ( tbc.format.width
125 		- tbc.options.frame * 2
126 		- (tbc.format.res_x - 1) * tbc.options.border
127 		- (!tbc.options.vertical && tbc.options.helper & 1 ? 2 : 0)
128 	    ) / tbc.format.res_x;
129 
130 	/* top margin */
131 	tbc.format.top_margin = tbc.options.frame +
132 	    ( tbc.format.height
133 		- tbc.options.frame * 2
134 		- tbc.format.res_y * tbc.format.dot_h
135 		- (tbc.format.res_y - 1) * tbc.options.border
136 		- (!tbc.options.vertical && tbc.options.helper & 1 ? 2 : 0)
137 	    ) / 2;
138 
139 	/* left margin */
140 	tbc.format.left_margin = tbc.options.frame +
141 	    ( tbc.format.width
142 		- tbc.options.frame * 2
143 		- tbc.format.res_x * tbc.format.dot_w
144 		- (tbc.format.res_x - 1) * tbc.options.border
145 		- (!tbc.options.vertical && tbc.options.helper & 1 ? 2 : 0)
146 	    ) / 2;
147 
148 	tbc_clear();
149 
150 }
151 
152 
153 /* this doesn't do anything, I was thinking about removing it. */
154 #define SET_COLOR(x) i = atoi(optarg); if (i >= 0 && i < 8) x = i;
155 int
main(int ac,char ** av)156 main(int ac, char **av)
157 {
158 	int ch, i;
159 	char modulename[9] = "clock";
160 
161 	tbc_set_default();
162 
163 	while ((ch = getopt(ac, av, "abdefg:hvm:pH:M:S:T:")) != -1) {
164 		switch (ch) {
165 		case 'a':
166 			tbc.options.vertical = 1;
167 			break;
168 		case 'b':
169 			tbc.options.border = tbc.options.border_default = 0;
170 			break;
171 		case 'd':
172 			tbc.options.dots = 0;
173 			break;
174 		case 'e':
175 			tbc.options.helper++;
176 			break;
177 		case 'f':
178 			tbc.options.frame = tbc.options.frame_default = 0;
179 			break;
180 		case 'g':
181 		case 'm':
182 			strncpy(modulename, optarg, 9);
183 			modulename[8] = 0;
184 			break;
185 		case 'p':
186 			tbc.options.ampm = 1;
187 			break;
188 		case 'H':
189 			SET_COLOR(tbc.colors.hour);
190 			break;
191 		case 'M':
192 			SET_COLOR(tbc.colors.minute);
193 			break;
194 		case 'S':
195 			SET_COLOR(tbc.colors.second);
196 			break;
197 		case 'T':
198 			SET_COLOR(tbc.colors.tenth);
199 			break;
200 		case 'v':
201 			printf(TBCCOPY);
202 			exit(-1);
203 		case 'h':
204 		default:
205 			printf(USAGE_FMT, av[0]);
206 			exit(-1);
207 		}
208 	}
209 	ac -= optind;
210 	av += optind;
211 
212 	tbc_display_init();
213 
214 	/* module selection */
215 	if (strncmp(modulename, "guessbin", 9) == 0) {
216 		tbc.options.frame = 1;
217 		tbc.options.border = 1;
218 		mod_guessbin();
219 	} else if (strncmp(modulename, "chrono", 7) == 0) {
220 		mod_chrono();
221 	} else {
222 		mod_clock();
223 	}
224 
225 	endwin();
226 	printf("Thank you for using tbclock!\n");
227 
228 	return (0);
229 }
230 
231