themes/darkness.php

   1 <?php
   2
   3 /**
   4  * Theme Name:   'Darkness'
   5  * Like black?
   6  *
   7  * @author Tyler Akins
   8  * @copyright &copy; 2001-2007 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 /**
  16  * Load up the usual suspects.. */
  17 require_once(SM_PATH . 'functions/strings.php');
  18
  19    // Note:  The text distance is actually pre-squared
  20    // Background range is from 24-64, all three colors are the same
  21    // Text range is from 196 to 255
  22    $BackgroundTargetDistance = 12;
  23    $BackgroundAdjust = 1;
  24    $TextTargetDistance = 65536;
  25    $TextAdjust = 0.95;
  26
  27 function IsUnique($Distance, $r, $g, $b, $usedArray)
  28 {
  29    foreach ($usedArray as $data) {
  30       $a = abs($data[0] - $r);
  31       $b = abs($data[1] - $g);
  32       $c = abs($data[2] - $b);
  33       $newDistance = $a * $a + $b * $b + $c * $c;
  34       if ($newDistance < $Distance)
  35          return false;
  36    }
  37    return true;
  38 }
  39
  40
  41 // Extra spiffy page fade if left frame
  42 // Always tremble background
  43 // This might make people go insane.  Yes!  *Victory dance!*
  44 function Darkness_HeaderPlugin() {
  45
  46    if (defined('PAGE_NAME') && PAGE_NAME=='left_main') {
  47       echo '<meta http-equiv="Page-Enter" content="' .
  48          'blendTrans(Duration=2.0)" />' . "\n";
  49    }
  50
  51 ?><script type="text/javascript">
  52 darkness_color = 0;
  53 darkness_dir = +1;
  54 darkness_hex = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
  55    'a', 'b', 'c', 'd', 'e', 'f');
  56 function DarknessTremble() {
  57    if (darkness_color >= 32 || darkness_color <= 0)
  58       darkness_dir = - darkness_dir;
  59    darkness_color += darkness_dir;
  60    if (darkness_color < 0)
  61       darkness_color = 0;
  62    bigDigit = Math.floor(darkness_color / 16);
  63    littleDigit = darkness_color - (bigDigit * 16);
  64    Color = darkness_hex[bigDigit] + darkness_hex[littleDigit];
  65    document.bgColor='#' + Color + Color + Color;
  66    setTimeout('DarknessTremble()', 5000);
  67 }
  68 setTimeout('DarknessTremble()', 10000);
  69 </script>
  70 <?php
  71 }
  72
  73 global $squirrelmail_plugin_hooks;
  74 $squirrelmail_plugin_hooks['generic_header']['theme_darkness'] =
  75     'Darkness_HeaderPlugin';
  76
  77 /** seed the random number generator **/
  78 sq_mt_randomize();
  79
  80 $color[3] = '#000000';
  81 $color[4] = '#000000';
  82 $used = array(0);
  83 $targetDistance = $BackgroundTargetDistance;
  84 $Left = array(0, 5, 9, 10, 12);
  85 while (count($Left) > 0) {
  86     // Some background colors
  87     $r = mt_rand(24,64);
  88     $unique = true;
  89     foreach ($used as $col) {
  90         if (abs($r - $col) < $targetDistance)
  91             $unique = false;
  92     }
  93     if ($unique) {
  94         $i = array_shift($Left);
  95         $color[$i] = sprintf('#%02X%02X%02X',$r,$r, $r);
  96         $used[] = $r;
  97         $targetDistance = $BackgroundTargetDistance;
  98     } else {
  99         $targetDistance -= $BackgroundAdjust;
 100     }
 101 }
 102
 103 // Set the error color to some shade of red
 104 $r = mt_rand(196, 255);
 105 $g = mt_rand(144, ($r * .8));
 106 $color[2] = sprintf('#%02X%02X%02X', $r, $g, $g);
 107 $used = array(array($r, $g, $g));
 108
 109 // Set normal text colors
 110 $cmin = 196;
 111 $cmax = 255;
 112 foreach (array(6, 8) as $i) {
 113     /** generate random color **/
 114     $r = mt_rand($cmin,$cmax);
 115     $g = mt_rand($cmin,$cmax);
 116     $b = mt_rand($cmin,$cmax);
 117     $color[$i] = sprintf('#%02X%02X%02X',$r,$g,$b);
 118     $used[] = array($r, $g, $b);
 119 }
 120
 121 $Left = array(1, 7, 11, 13, 14, 15);
 122 $targetDistance = $TextTargetDistance;
 123 while (count($Left) > 0) {
 124     // Text colors -- Try to keep the colors distinct
 125     $cmin = 196;
 126     $cmax = 255;
 127
 128     /** generate random color **/
 129     $r = mt_rand($cmin,$cmax);
 130     $g = mt_rand($cmin,$cmax);
 131     $b = mt_rand($cmin,$cmax);
 132
 133     if (IsUnique($targetDistance, $r, $g, $b, $used)) {
 134         $i = array_shift($Left);
 135         $color[$i] = sprintf('#%02X%02X%02X',$r,$g,$b);
 136         $used[] = array($r, $g, $b);
 137         $targetDistance = $TextTargetDistance;
 138     } else {
 139         $targetDistance *= $TextAdjust;
 140     }
 141 }