Methods for programmatically manipulating sketches while digitizing features. r=bartvde (closes #3343)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@12103 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Geometry/LineString.js

@@ -37,12 +37,17 @@ OpenLayers.Geometry.LineString = OpenLayers.Class(OpenLayers.Geometry.Curve, {
      *
      * Parameters: 
      * point - {<OpenLayers.Geometry.Point>} The point to be removed
+     *
+     * Returns: 
+     * {Boolean} The component was removed.
      */
     removeComponent: function(point) {
-        if ( this.components && (this.components.length > 2)) {
+        var removed = this.components && (this.components.length > 2);
+        if (removed) {
             OpenLayers.Geometry.Collection.prototype.removeComponent.apply(this, 
                                                                   arguments);
         }
+        return removed;
     },
     
     /**