More cleanup

client/scripts/application.js

@@ -74,11 +74,11 @@
                 canvas:           new Snap('#svg'),
                 steps:            ctx.hintSteps,
                 range:            ctx.searchRange,
+                onValueChanged:   onAdjust,
                 useLocalScale:    true,
                 useRelativeScale: true
             });
             ctx.grapher.setColumns(results.columns);
-            ctx.grapher.setValueChangedListener(onAdjust);
 
             saveSnapshot(results);
             outputMatches(results.items, results.count);

client/scripts/grapher.js

@@ -291,6 +291,7 @@
         var _steps            = params.steps || 20;
         var _useLocalScale    = params.useLocalScale || true;
         var _useRelativeScale = params.useRelativeScale || true;
+        var _onValueChanged   = params.onValueChanged;
 
         function computeLocalScale(hints) {
             var counts = _.pluck(hints, 'count');
@@ -333,9 +334,10 @@
                 }
                 else {
                     _columns[name] = new Column({
-                        canvas: _canvas,
+                        onValueChanged: _onValueChanged,
                         steps:          _steps,
                         range:          _range,
+                        canvas:         _canvas,
                         data:           data,
                         name:           name,
                         scale:          scale,
@@ -358,11 +360,5 @@
                 this.setColumns(_data);
             }
         };
-
-        this.setValueChangedListener = function(listener) {
-            for (var name in _columns) {
-                _columns[name].onValueChanged = listener;
-            }
-        };
     };
 }(window.grapher = window.grapher || {}));