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+/* Copyright (c) 2011 by MapQuery Contributors (see AUTHORS for
+ * full list of contributors). Published under the MIT license.
+ * See https://github.com/mapquery/mapquery/blob/master/LICENSE for the
+ * full text of the license. */
+
+/**
+#jquery.mapquery.mqMousePosition.js
+The file containing the mqMousePosition Widget
+
+### *$('selector')*.`mqMousePosition([options])`
+_version added 0.1_
+####**Description**: create a widget to show the location under the mouse pointer
+
+ + **options**
+ - **map**: the mapquery instance
+ - **precision**: the number of decimals (default 2)
+ - **x**: the label for the x-coordinate (default x)
+ - **y**: the label for the y-coordinate (default y)
+
+
+>Returns: widget
+
+
+The mqMousePosition allows us to show the coordinates under the mouse pointer
+
+
+ $('#mousepointer').mqMousePointer({
+ map: '#map'
+ });
+
+ */
+(function($) {
+$.template('mqMousePosition',
+ '<div class="mq-mouseposition ui-widget ui-helper-clearfix ">'+
+ '<span class="ui-widget-content ui-helper-clearfix ui-corner-all ui-corner-all">'+
+ '<div id="mq-mouseposition-x" class="mq-mouseposition-coordinate">'+
+ '</div><div id="mq-mouseposition-y" class="mq-mouseposition-coordinate">'+
+ '</div></div></span>');
+
+$.widget("mapQuery.mqMousePosition", {
+ options: {
+ // The MapQuery instance
+ map: undefined,
+
+ // The number of decimals for the coordinates
+ // default: 2
+ // TODO: JCB20110630 use dynamic precision based on the pixel
+ // resolution, no need to configure precision
+ precision: 2,
+
+ // The label of the x-value
+ // default: 'x'
+ x: 'x',
+ // The label of the y-value
+ // default: 'y'
+ y: 'y'
+
+ },
+ _create: function() {
+ var map;
+ var self = this;
+ var element = this.element;
+ var mousepos;
+
+ //get the mapquery object
+ map = $(this.options.map).data('mapQuery');
+
+ map.bind("mousemove",
+ {widget:self,map:map},
+ self._onMouseMove);
+
+
+ $.tmpl('mqMousePosition',{
+ mouseposition:mousepos
+ }).appendTo(element);
+
+ },
+ _destroy: function() {
+ this.element.removeClass(' ui-widget ui-helper-clearfix ' +
+ 'ui-corner-all')
+ .empty();
+ },
+ _mouseMoved: function(data, element, map) {
+ var x = data.layerX;
+ var y = data.layerY;
+ var mapProjection = map.options.projection;
+ var displayProjection = map.options.projection;
+ //if the coordinates should be displayed in something else,
+ //set them via the map displayProjection option
+ var pos = map.olMap.getLonLatFromLayerPx(new OpenLayers.Pixel(x,y));
+ if(map.options.displayProjection) {
+ displayProjection = map.options.displayProjection;
+ pos=pos.transform(
+ new OpenLayers.Projection(mapProjection),
+ new OpenLayers.Projection(displayProjection));
+ }
+ $("#mq-mouseposition-x", element).html(
+ this.options.x+': '+pos.lon.toFixed(this.options.precision));
+ $("#mq-mouseposition-y", element).html(
+ this.options.y+': '+pos.lat.toFixed(this.options.precision));
+ },
+
+ _onMouseMove: function(evt, data) {
+ evt.data.widget._mouseMoved(data,evt.data.control,evt.data.map);
+ }
+});
+})(jQuery);