<?php
  function retval($inv) {
    if (strpos($inv, "E-") !== false) return "0";
    return $inv;
  }
?>
<html>
  <head> <script type="text/javascript" src="http://www.rjmprogramming.com.au/gchartgen.js"></script>
    <title>Gauge Chart - RJM Programming - http://www.rjmprogramming.com.au (Copyright &copy; 2013 rjmprogramming.com.au all rights reserved.)</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=0.5, maximum-scale=4, user-scalable=yes" />
    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript">
<?php 
      $GETtitle = "My Computer Status";
      $GETlabel = "Label";
      $GETvalue = "Value";
      $GETdata = ",['Memory', 80],['CPU', 55],['Network', 68] ";
      $GETwidth = "400";
      $GETheight = "120";
      
      $GETredFrom = "90"; 
      $GETredTo = "100";
      $GETyellowFrom = "75";
      $GETyellowTo = "90";
      $GETminorTicks = "5";

      
      if (isset($_GET['value'])) {
       $GETtitle = $_GET['title'];
       $GETwidth = $_GET['width'];
       $GETheight = $_GET['height'];
       $GETlabel = $_GET['label'];
       $GETvalue = $_GET['value'];
       $GETredFrom = $_GET['redFrom']; 
       $GETredTo = $_GET['redTo'];
       $GETyellowFrom = $_GET['yellowFrom'];
       $GETyellowTo = $_GET['yellowTo'];
       $GETminorTicks = $_GET['minorTicks'];
       $GETdata = $_GET['data'];
      }
      
      echo " google.load('visualization', '1', {packages:['gauge']}); " . "\n";
      echo ' google.setOnLoadCallback(drawChart); ' . "\n";
      echo ' function drawChart() { ' . "\n";
      echo ' var data = google.visualization.arrayToDataTable([ ' . "\n";
      echo " ['" . $GETlabel . "','" . $GETvalue . "'] \n";
      echo str_replace("~,", "',", str_replace("[~", "['", str_replace(",]", ",0]", str_replace(",]", ",0]", str_replace(",]", ",0]", $GETdata)))));
      echo "        ]);\n";
      
      echo "        var options = { \n";
      echo "        width: " . $GETwidth . ", height: " . $GETheight . ", \n";
      echo "        redFrom: " . $GETredFrom . ", redTo: " . $GETredTo . ", \n";
      echo "        yellowFrom:" . $GETyellowFrom . ", yellowTo: " . $GETyellowTo . ", \n";
      echo "        minorTicks: " . $GETminorTicks . " \n";
      echo "       }; \n";


      echo " var chart = new google.visualization.Gauge(document.getElementById('chart_div')); \n";
      echo " chart.draw(data, options); \n } \n";
      
      echo " </script> \n";
      echo " </head> \n";
      echo " <body onload='setTimeout(later, 2 * 1000);' style='background-color: silver;'> \n";
      echo " <h1>" . $GETtitle . " Gauge Chart</h1> \n";

      echo '<div id="chart_div"></div>' . " \n";
      echo '<a title="Another Gauge Chart" href="./gauge_chart.php">Another gauge chart?</a>' . " \n";
      if (!isset($_GET['value'])) {
      
        echo '<' . 'script' . '>' . "\n " . " function later() { \n" . ' var datalineprefix = " "; ' . "\n";
        echo ' var datalinesuffix = ""; ' . "\n";
        echo ' var extra = ""; ' . "\n";
        echo ' var thisline = 1; ' . "\n";
        echo ' var totalleft = 100.0; ' . "\n";
        echo ' var title = prompt("Enter Gauge Chart Title", "' . $GETtitle . '"); ' . "\n";
        echo ' if (title != null) { ' . "\n";
        echo ' var width = prompt("Enter Gauge Width", "' . $GETwidth . '"); ' . "\n";
        echo ' var height = prompt("Enter Gauge Height", "' . $GETheight . '"); ' . "\n";
        echo ' var label = prompt("Enter Gauge Concept Type", "' . $GETlabel . '"); ' . "\n";
        echo ' var value = prompt("Enter Gauge " + label + " Measure", "' . $GETvalue . '"); ' . "\n";
        echo ' var yellowFrom = prompt("Enter Gauge Yellow From", "' . $GETyellowFrom . '"); ' . "\n";
        echo ' var yellowTo = prompt("Enter Gauge Yellow To", "' . $GETyellowTo . '"); ' . "\n";
        echo ' var redFrom = prompt("Enter Gauge Red From", "' . $GETredFrom . '"); ' . "\n";
        echo ' var redTo = prompt("Enter Gauge Red To", "' . $GETredTo . '"); ' . "\n";
        echo ' var minorTicks = prompt("Enter Gauge Minor Ticks", "' . $GETminorTicks . '"); ' . "\n";
        echo ' var datac = ""; ' . "\n";
        echo ' var sq = "' . "'" . '"; ' . "\n";
        echo ' datalineprefix = prompt("Enter " + label + " Concept " + thisline, ""); ' . "\n";
        echo ' while (datalineprefix.length != 0 && (value.indexOf("ercent") == (0 - 1) || value.indexOf("  ercent ") != (0 - 1) || (value.indexOf("ercent") != (0 - 1) && totalleft > 0))) { ' . "\n";
        echo ' if (datalinesuffix.length != 0) datalineprefix = prompt("Enter " + label + " Type " + thisline + " (for no more hit Cancel button)", ""); ' . "\n";
        echo ' if (datalineprefix == null) { ' . "\n";
        echo '     datalineprefix = ""; ' . "\n";
        echo '     totalleft = 0; ' . "\n";
        echo ' } else if (datalineprefix.length != 0) { ' . "\n";
        echo '     extra = "";  ' . "\n";
        echo '     if (value.indexOf("ercent") != (0 - 1) && value.indexOf("  ercent ") == (0 - 1)) extra = " (for " + totalleft + " enter nothing or hit Cancel button)";  ' . "\n";
        echo '     datalinesuffix = prompt("Enter " + value.replace("  ercent ", "") + " " + thisline + extra, "0"); ' . "\n";
        echo '     if (datalinesuffix == null && value.indexOf("ercent") != (0 - 1) && value.indexOf("  ercent ") == (0 - 1)) datalinesuffix = totalleft; ' . "\n";
        echo '     if (datalinesuffix == null) datalinesuffix = "0"; ' . "\n";
        echo '     if (datalinesuffix.length == 0) { ' . "\n";
        echo '       datalinesuffix = eval(totalleft); ' . "\n";
        echo '       totalleft = 0; ' . "\n";
        echo '     } else if (eval(totalleft) == eval(datalinesuffix) && value.indexOf("ercent") != (0 - 1) && value.indexOf("  ercent ") == (0 - 1)) { ' . "\n";
        echo '       totalleft = 0; ' . "\n";
        echo '     } else if (eval(datalinesuffix) > eval(totalleft) && value.indexOf("ercent") != (0 - 1) && value.indexOf("  ercent ") == (0 - 1)) { ' . "\n";
        echo '       datalinesuffix = eval(totalleft); ' . "\n";
        echo '       totalleft = 0; ' . "\n";
        echo '     } else if (eval(datalinesuffix) > eval(totalleft) && value.indexOf("ercent") == (0 - 1) && value.indexOf("  ercent ") == (0 - 1)) { ' . "\n";
        echo '       value = value + "  ercent "; ' . "\n";
        echo '     } else { ' . "\n";
        echo '       totalleft = eval(totalleft) - eval(datalinesuffix); ' . "\n";
        echo '     } ' . "\n";
        echo '     datac = datac + ", [~" + datalineprefix + "~," + datalinesuffix + "] "; ' . "\n";
        echo '     thisline++; ' . "\n";
        echo '   } ' . "\n";
        echo ' } ' . "\n";
        echo ' window.location = "./gauge_chart.php?title=" + title + "&width=" + width + "&height=" + height + "&yellowFrom=" + yellowFrom + "&yellowTo=" + yellowTo + "&redFrom=" + redFrom + "&redTo=" + redTo + "&minorTicks=" + minorTicks + "&label=" + label + "&value=" + value.replace("  ercent ", "") + "&data=" + datac; ' . "\n";
        echo "} \n" . "} \n" . '</' . 'script' . '>' . "\n";
      } 
    ?>
  </body>
</html>
