Initial commit

lib/assets/javascripts/deep-insights/widgets/histogram/histogram-widget-model.js

@@ -0,0 +1,68 @@
+var _ = require('underscore');
+var WidgetModel = require('../widget-model');
+
+/**
+ * Model for a histogram widget
+ */
+module.exports = WidgetModel.extend({
+  defaults: {
+    normalized: true
+  },
+
+  defaultState: _.extend(
+    {
+      autoStyle: false,
+      normalized: false
+    },
+    WidgetModel.prototype.defaultState
+  ),
+
+  initialize: function (attrs, opts) {
+    WidgetModel.prototype.initialize.apply(this, arguments);
+    this.on('change:collapsed', this._onCollapsedChange, this);
+    this.on('change:style', this._updateAutoStyle, this);
+    this.dataviewModel.once('change', function () {
+      if (this.get('autoStyle')) {
+        this.autoStyle();
+      }
+    }, this);
+  },
+
+  _onCollapsedChange: function (m, isCollapsed) {
+    this.dataviewModel.set('enabled', !isCollapsed);
+  },
+
+  getState: function () {
+    var state = WidgetModel.prototype.getState.call(this);
+    var start = this.dataviewModel.get('start');
+    var end = this.dataviewModel.get('end');
+    var min = this.get('min');
+    var max = this.get('max');
+
+    var checkRoughEqual = function (a, b) {
+      if (_.isNumber(a) && _.isNumber(b) && (a !== b) && Math.abs(a - b) > Math.abs(start - end) * 0.01) {
+        return true;
+      }
+      return false;
+    };
+
+    if (checkRoughEqual(start, min)) {
+      state.min = min;
+    } else {
+      delete state.min;
+    }
+
+    if (checkRoughEqual(end, max)) {
+      state.max = max;
+    } else {
+      delete state.max;
+    }
+
+    if (this.get('zoomed') === true) {
+      state.zoomed = true;
+    }
+
+    return state;
+  }
+
+});