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   1  <?php
   2  
   3  /*********************************************************************************
   4  ** The contents of this file are subject to the vtiger CRM Public License Version 1.0
   5   * ("License"); You may not use this file except in compliance with the License
   6   * The Original Code is:  vtiger CRM Open Source
   7   * The Initial Developer of the Original Code is vtiger.
   8   * Portions created by vtiger are Copyright (C) vtiger.
   9   * All Rights Reserved.
  10  *
  11   ********************************************************************************/
  12  
  13  // TTF Font names
  14  DEFINE("FF_COURIER",'Courier New');
  15  DEFINE("FF_VERDANA",'Verdana');
  16  DEFINE("FF_TIMES",'Times New Roman');
  17  DEFINE("FF_COMIC",'Comic');
  18  DEFINE("FF_ARIAL",'Arial');
  19  DEFINE("FF_GEORGIA",'Georgia');
  20  DEFINE("FF_TREBUCHE",'Trebuc');
  21  DEFINE("FF_DEJAVUSAN",'DejaVuSans');
  22  
  23  // Chinese font
  24  DEFINE("FF_SIMSUN",'Simsun');
  25  DEFINE("FF_CHINESE",'Chinese');
  26  DEFINE("FF_BIG5",'Big5');
  27  
  28  DEFINE("FF_FONT1",'Vera');
  29  
  30  /**This function is used to get the font name when a language code is given
  31  * Param $locale - language code
  32  * Return type string - font name
  33  */
  34  function calculate_font_name($locale)
  35  
  36  {
  37      global $log;
  38      $log->debug("Entering calculate_font_name(".$locale.") method ...");
  39  
  40      switch($locale)
  41      {
  42          case 'cn_zh':
  43              $log->debug("Exiting calculate_font_name method ...");
  44              return FF_SIMSUN;
  45          case 'tw_zh':
  46              if(!function_exists('iconv')){
  47                  echo " Unable to display traditional Chinese on the graphs.<BR>The function iconv does not exists please read more about <a href='http://us4.php.net/iconv'>iconv here</a><BR>";
  48                  $log->debug("Exiting calculate_font_name method ...");
  49                  return FF_DEJAVUSAN;
  50  
  51              }
  52              else
  53              {
  54                  $log->debug("Exiting calculate_font_name method ...");
  55                   return FF_CHINESE;
  56              }
  57          default:
  58              $log->debug("Exiting calculate_font_name method ...");
  59              return FF_DEJAVUSAN;
  60      }
  61  
  62      $log->debug("Exiting calculate_font_name method ...");
  63      return FF_DEJAVUSAN;
  64  }
  65  
  66  /**This function is used to generate the n colors.
  67  * Param $count - number of colors to generate
  68  * Param $start - value of first color
  69  * Param $step - color increment to apply
  70  * Return type array - array of n colors values
  71  */
  72  
  73  function color_generator($count = 1, $start = '33CCFF', $step = '221133')
  74  {
  75      global $log;
  76      $log->debug("Entering color_generator(".$count.",".$start.",".$step.") method ...");
  77      // explode color strings to RGB array
  78      if($start{0} == "#") $start = substr($start,1);
  79      if($step{0} == "#") $step = substr($step,1);
  80      // pad shorter strings with 0
  81      $start = substr($start."000000",0,6);
  82      $step = substr($step."000000",0,6);
  83      $colors = array(hexdec(substr($start,0,2)),hexdec(substr($start,2,2)),hexdec(substr($start,4,2)));
  84      $steps = array(hexdec(substr($step,0,2)),hexdec(substr($step,2,2)),hexdec(substr($step,4,2)));
  85      // buils $count colours adding $step to $start
  86      $result = array();
  87      for($i=1; $i<=$count; $i++){
  88          array_push($result,"#".dechex($colors[0]).dechex($colors[1]).dechex($colors[2]));
  89          for($j=0; $j<3; $j++) {
  90              $colors[$j] += $steps[$j];
  91              if($colors[$j] > 0xFF) $colors[$j] -= 0xFF;
  92          }
  93      }
  94      $log->debug("Exiting color_generator method ...");
  95      return $result;
  96  }
  97  
  98  /**This function is used to define the optimum spacin for tick marks on an axis
  99  * Param $max - maximum value of axis
 100  * Return type array - array of 2 values major and minor spacing
 101  */
 102  
 103  function get_tickspacing($max = 10)
 104  {
 105      global $log,$app_strings;
 106      $log->debug("Entering get_tickspacing(".$max.") method ...");
 107      $result = array(1,1);
 108      
 109      // normalize $max to get value between 1 and 10
 110      $coef = pow(10,floor(log10($max)));
 111      if($coef == 0)
 112      {
 113          $data=0;
 114          echo "<h3>".$app_strings['NO_DATA_AVAILABLE_WITH_SPECIFIED_PERIOD']."</h3>";
 115          $log->debug("Exiting get_tickspacing method ...");
 116          return $data;
 117      }
 118      $normalized = $max / $coef;
 119      
 120      if($normalized < 1.5){
 121          $result[0] = 0.2;
 122          $result[1] = 0.1;
 123      }
 124      elseif($normalized < 5){
 125          $result[0] = 0.5;
 126          $result[1] = 0.1;
 127      }
 128      elseif($normalized < 10){
 129          $result[0] = 1.0;
 130          $result[1] = 0.5;
 131      }
 132      $result[0] *= $coef;
 133      $result[1] *= $coef;
 134      $log->debug("Exiting get_tickspacing method ...");
 135      return $result;
 136  }
 137  ?>