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[squirrelmail.git] / themes / darkness.php
1 <?php
2
3 /**
4 * Theme Name: 'Darkness'
5 * Like black?
6 *
7 * @author Tyler Akins
8 * @copyright 2001-2020 The SquirrelMail Project Team
9 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
10 * @version $Id$
11 * @package squirrelmail
12 * @subpackage themes
13 */
14
15 // Note: The text distance is actually pre-squared
16 // Background range is from 24-64, all three colors are the same
17 // Text range is from 196 to 255
18 $BackgroundTargetDistance = 12;
19 $BackgroundAdjust = 1;
20 $TextTargetDistance = 65536;
21 $TextAdjust = 0.95;
22
23 function IsUnique($Distance, $r, $g, $b, $usedArray)
24 {
25 foreach ($usedArray as $data) {
26 $a = abs($data[0] - $r);
27 $b = abs($data[1] - $g);
28 $c = abs($data[2] - $b);
29 $newDistance = $a * $a + $b * $b + $c * $c;
30 if ($newDistance < $Distance)
31 return false;
32 }
33 return true;
34 }
35
36
37 // Extra spiffy page fade if left frame
38 // Always tremble background
39 // This might make people go insane. Yes! *Victory dance!*
40 function Darkness_HeaderPlugin() {
41
42 if (defined('PAGE_NAME') && PAGE_NAME=='left_main') {
43 echo '<meta http-equiv="Page-Enter" content="' .
44 'blendTrans(Duration=2.0)" />' . "\n";
45 }
46
47 ?><script type="text/javascript">
48 darkness_color = 0;
49 darkness_dir = +1;
50 darkness_hex = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
51 'a', 'b', 'c', 'd', 'e', 'f');
52 function DarknessTremble() {
53 if (darkness_color >= 32 || darkness_color <= 0)
54 darkness_dir = - darkness_dir;
55 darkness_color += darkness_dir;
56 if (darkness_color < 0)
57 darkness_color = 0;
58 bigDigit = Math.floor(darkness_color / 16);
59 littleDigit = darkness_color - (bigDigit * 16);
60 Color = darkness_hex[bigDigit] + darkness_hex[littleDigit];
61 document.bgColor='#' + Color + Color + Color;
62 setTimeout('DarknessTremble()', 5000);
63 }
64 setTimeout('DarknessTremble()', 10000);
65 </script>
66 <?php
67 }
68
69 global $squirrelmail_plugin_hooks;
70 $squirrelmail_plugin_hooks['generic_header']['theme_darkness'] =
71 'Darkness_HeaderPlugin';
72
73 $color[3] = '#000000';
74 $color[4] = '#000000';
75 $used = array(0);
76 $targetDistance = $BackgroundTargetDistance;
77 $Left = array(0, 5, 9, 10, 12);
78 while (count($Left) > 0) {
79 // Some background colors
80 $r = mt_rand(24,64);
81 $unique = true;
82 foreach ($used as $col) {
83 if (abs($r - $col) < $targetDistance)
84 $unique = false;
85 }
86 if ($unique) {
87 $i = array_shift($Left);
88 $color[$i] = sprintf('#%02X%02X%02X',$r,$r, $r);
89 $used[] = $r;
90 $targetDistance = $BackgroundTargetDistance;
91 } else {
92 $targetDistance -= $BackgroundAdjust;
93 }
94 }
95
96 // Set the error color to some shade of red
97 $r = mt_rand(196, 255);
98 $g = mt_rand(144, ($r * .8));
99 $color[2] = sprintf('#%02X%02X%02X', $r, $g, $g);
100 $used = array(array($r, $g, $g));
101
102 // Set normal text colors
103 $cmin = 196;
104 $cmax = 255;
105 foreach (array(6, 8) as $i) {
106 /** generate random color **/
107 $r = mt_rand($cmin,$cmax);
108 $g = mt_rand($cmin,$cmax);
109 $b = mt_rand($cmin,$cmax);
110 $color[$i] = sprintf('#%02X%02X%02X',$r,$g,$b);
111 $used[] = array($r, $g, $b);
112 }
113
114 $Left = array(1, 7, 11, 13, 14, 15);
115 $targetDistance = $TextTargetDistance;
116 while (count($Left) > 0) {
117 // Text colors -- Try to keep the colors distinct
118 $cmin = 196;
119 $cmax = 255;
120
121 /** generate random color **/
122 $r = mt_rand($cmin,$cmax);
123 $g = mt_rand($cmin,$cmax);
124 $b = mt_rand($cmin,$cmax);
125
126 if (IsUnique($targetDistance, $r, $g, $b, $used)) {
127 $i = array_shift($Left);
128 $color[$i] = sprintf('#%02X%02X%02X',$r,$g,$b);
129 $used[] = array($r, $g, $b);
130 $targetDistance = $TextTargetDistance;
131 } else {
132 $targetDistance *= $TextAdjust;
133 }
134 }