# See: http://wiki.flightgear.org/MapStructure
# Class things:
var name = 'SPD-profile';
var parents = [canvas.SymbolLayer.Controller];
var __self__ = caller(0)[0];

var _options = { # default configuration options
	alts: [100,140,250,260,'wp']
};
canvas.SymbolLayer.Controller.add(name, __self__);
canvas.SymbolLayer.add(name, {
	parents: [MultiSymbolLayer],
	type: name, # Symbol type
	df_controller: __self__, # controller to use by default -- this one
	df_options: _options
});
var new = func(layer) {
	var m = {
		parents: [__self__],
		layer: layer,
		#map: layer.map,
		listeners: [],
	};
	layer.searcher._equals = func(a,b) a.getName() == b.getName();
	#append(m.listeners, setlistener(layer.options.fplan_active, func m.layer.update() ));
	#m.addVisibilityListener();
 
	return m;
};
var del = func() {
	foreach (var l; me.listeners)
		removelistener(l);
};
 
var searchCmd = func {
	var results = [];
	var spdNode = props.globals.getNode(me.layer.options.spd_node);
	if (spdNode != nil) {
		var limits = spdNode.getChildren();
		foreach (var limit; limits) {
			#t = 'spd-change-point' ~ '-' ~ alt;
			#print('SPD-Controller, search for '~t);
			#var n = spdNode.getNode(t);
			if (limit != nil and limit.getValue('longitude-deg') != nil){
				#print('SPD-Controller -> Append');
				append(results, limit);
			}
		}
	}
	return results;
}