/**
 * jQuery gMap
 *
 * @url		http://gmap.nurtext.de/
 * @author	Cedric Kastner <cedric@nur-text.de>
 * @version	1.0.3
 */
(function($) {
    // Main plugin function
    jQuery.fn.gMap = function(options) {
        // Check if the browser is compatible with Google Maps
        if (!window.GBrowserIsCompatible || !GBrowserIsCompatible()) return this;

        // Build main options before element iteration
        var opts = jQuery.extend({}, jQuery.fn.gMap.defaults, options);

        // Iterate each matched element
        return this.each(function() {
            // Create new map and set initial options
            $gmap = new GMap2(this);

            // Try to center to the first marker
            if (!opts.latitude && !opts.longitude) {
                // Check for at least one marker
                if (is_array(opts.markers) && opts.markers.length >= 1) {
                    // Center to the first marker
                    for (i = 0; i < 20; i++) {
                        var m = opts.markers[i];
                        if (m) {
                            opts.latitude = m.latitude;
                            opts.longitude = m.longitude;
                            break;
                        }
                    }
                }
                else {
                    // Center Earth and lower zoom
                    opts.latitude = 34.885931;
                    opts.longitude = 9.84375;
                    opts.zoom = 2;

                }

            }

            // Center the map and set the maptype
            $gmap.setCenter(new GLatLng(opts.latitude, opts.longitude), opts.zoom);
            $gmap.setMapType(opts.maptype);

            // Check for custom map controls
            if (opts.controls.length == 0) {
                // Default map controls
                $gmap.setUIToDefault();

            }
            else {
                // Add custom map controls
                for (var i = 0; i < opts.controls.length; i++) {
                    // Eval is evil - I know. ;)
                    eval('$gmap.addControl(new ' + opts.controls[i] + '());');

                }

            }

            // Check if scrollwheel should be enabled when using custom controls
            if (opts.scrollwheel == true && opts.controls.length != 0) { $gmap.enableScrollWheelZoom(); }

            // Add all map markers
            for (var j = 0; j < opts.markers.length; j++) {
                // Get the options from current marker
                marker = opts.markers[j];

                if (marker) {
                    // Create new icon
                    gicon = new GIcon();

                    // Set icon properties from global options
                    gicon.image = opts.icon.image;
                    gicon.shadow = opts.icon.shadow;
                    gicon.iconSize = (is_array(opts.icon.iconsize)) ? new GSize(opts.icon.iconsize[0], opts.icon.iconsize[1]) : opts.icon.iconsize;
                    gicon.shadowSize = (is_array(opts.icon.shadowsize)) ? new GSize(opts.icon.shadowsize[0], opts.icon.shadowsize[1]) : opts.icon.shadowsize;
                    gicon.iconAnchor = (is_array(opts.icon.iconanchor)) ? new GPoint(opts.icon.iconanchor[0], opts.icon.iconanchor[1]) : opts.icon.iconanchor;
                    gicon.infoWindowAnchor = (is_array(opts.icon.infowindowanchor)) ? new GPoint(opts.icon.infowindowanchor[0], opts.icon.infowindowanchor[1]) : opts.icon.infowindowanchor;

                    if (typeof (marker.icon) != 'undefined') {
                        // Overwrite global options with ther marker one's
                        gicon.image = marker.icon.image;
                        gicon.shadow = marker.icon.shadow;
                        gicon.iconSize = (is_array(marker.icon.iconsize)) ? new GSize(marker.icon.iconsize[0], marker.icon.iconsize[1]) : marker.icon.iconsize;
                        gicon.shadowSize = (is_array(marker.icon.shadowsize)) ? new GSize(marker.icon.shadowsize[0], marker.icon.shadowsize[1]) : marker.icon.shadowsize;
                        gicon.iconAnchor = (is_array(marker.icon.iconanchor)) ? new GPoint(marker.icon.iconanchor[0], marker.icon.iconanchor[1]) : marker.icon.iconanchor;
                        gicon.infoWindowAnchor = (is_array(marker.icon.infowindowanchor)) ? new GPoint(marker.icon.infowindowanchor[0], marker.icon.infowindowanchor[1]) : marker.icon.infowindowanchor;

                    }

                    // Create a new marker on the map
                    gmarker = new GMarker(new GPoint(marker.longitude, marker.latitude), gicon);

                    // Only display info window if the marker contains a description
                    if (typeof (marker.html) != 'undefined') {
                        // Bind the info window to marker
                        gmarker.bindInfoWindowHtml(opts.html_prepend + marker.html + opts.html_append);

                        // Add overlay if marker was created and check if popup should be shown when map is loaded
                        if (gmarker) { $gmap.addOverlay(gmarker); }
                        if (marker.popup == true) { gmarker.openInfoWindowHtml(opts.html_prepend + marker.html + opts.html_append); }

                    }
                    else {
                        // Add overlay marker
                        if (gmarker) { $gmap.addOverlay(gmarker); }

                    }
                }
            }

        });

    }

    // Function to check if array or not
    function is_array(input) {
        return typeof (input) == 'object' && (input instanceof Array);
    }

    // Set default settings
    jQuery.fn.gMap.defaults =
	{
	    latitude: 0,
	    longitude: 0,
	    zoom: 6,
	    markers: [],
	    controls: [],
	    scrollwheel: true,
	    maptype: G_NORMAL_MAP,
	    html_prepend: '<div class="gmap_marker">',
	    html_append: '</div>',
	    icon:
		{
		    image: "http://www.google.com/mapfiles/marker.png",
		    shadow: "http://www.google.com/mapfiles/shadow50.png",
		    iconsize: [20, 34],
		    shadowsize: [37, 34],
		    iconanchor: [9, 34],
		    infowindowanchor: [9, 2]

		}

	}

})(jQuery);