<?php 
// vim: sw=4:ts=4
/**
* @version 00.04.09
* @package polaring
* @license This component in released under the GNU/GPL License
*
* File: view/gmaps.php
* Role: Contains functions that relates to Google Maps
*
**/

class gmaps {
    function htmlHead() {
	echo "  <script src=\"http://maps.google.com/maps?file=api&v=2&key=".$_SESSION['gmapsApi']."\" type=\"text/javascript\">\n".
	    "  </script>\n\n";
	return;
    } // end htmlHead


    function mapDiv($width, $height) {
	echo "<div id=\"map\" class=\"center\" style=\"width: ".
	    $width."px; height: ".$height."px\"></div>\n";
	return(true);
    } // end mapDiv


    function mapRoute($latPre, $longPre) {
	$lat = array_filter($latPre);
	$long = array_filter($longPre);

	$maxLat = max($lat);
	$maxLong = max($long);
	$minLat = min($lat);
	$minLong = min($long);

	$centerLat = (($maxLat - $minLat) / 2 ) + $minLat;
	$centerLong = (($maxLong - $minLong) / 2) + $minLong;

	$centerOverlay = $centerLat.", ".$centerLong;

	?>
    <script type="text/javascript">

    //<![CDATA[

	function loadPolaringGmap() {
	    if (GBrowserIsCompatible()) {
		var map = new GMap2(document.getElementById("map"));
		map.addControl(new GSmallMapControl());
		map.addControl(new GMapTypeControl());

		var points = [];
		var bounds = new GLatLngBounds();
<?php
	$totNum = count($lat);
	// If we're not looking at a big map,
	// e.g. if google map isn't selected,
	// then only have a few map points (25).
	if ( !isset($_GET['selGraph']) ||
	    $_GET['selGraph'] != "dayGmapRoute" ) {
	    $mapPoints = 25;
	} else {
	// Otherwise, use setting in configuration
	// (default: 100)
	    $mapPoints = $_SESSION['mapPoints'];
	}

	if ( $mapPoints != 0 && 
	    $totNum > $mapPoints ) {
	    $divBy = round($totNum / $mapPoints);
	} else {
	    $divBy = 1;
	}
	for ( $i = 0; $i < $totNum; $i++ ) {
	    if ( 
		( $i % $divBy == 0 || 
	        $i == 0 || 
		$i == ($totNum -1 ) ) && 
		$lat[$i] && 
		$long[$i] 
	    ) {
		    echo "    var point = new GLatLng(".$lat[$i].
			", ".$long[$i].");\n";
		    echo "    points.push(point);\n";
		    echo "    bounds.extend(point);\n";
	    }
	}


?>
	var polyline = new GPolyline(points);
	map.setCenter(new GLatLng(<? echo $centerOverlay;?>), 13);
	map.setZoom(map.getBoundsZoomLevel(bounds));

	map.addOverlay(polyline);
	    }
	}

    

    //]]>

    </script>
<?php
	return;
    } // end mapRoute
} // gmaps


?>