example_shape.js

define(function(require) {

    var Backbone = require(‘backbone’),
        backboneCanvasMixin = require(‘components/shapes/mixins/backbone_raphael_mixin’),
        isMovable = require(‘components/shapes/mixins/is_movable’)
        isRotatable = require(‘components/shapes/mixins/is_rotatable’)
        // … and more ;

    return Backbone.View.extend({ … })
        .mixin(backboneCanvasMixin)
        .mixin(isMovable)
        .mixin(isRotatable)
        .mixin(isSelectable)
        .mixin(contextMenu);
});