themes/darkness.php

   1 <?php
   2
   3 /**
   4  * Theme Name:   'Darkness'
   5  * Like black?
   6  *
   7  * @author Tyler Akins
   8  * @copyright &copy; 2001-2009 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 }