function widget_base (instance, widget) {
    "use strict";

    widget.Base = instance.Widget.extend({
        size: {
            width: 0,
            height: 0
        },
        position: {
            x: 0,
            y: 0
        },
        init: function (parent, size, position) {
            this._super(parent);
            this.size = size || this.size;
            this.position = position || this.position;
        },
        start: function () {
            console.log('Widget started');
        },
        getSize: function () {
            return this.size;
        },
        getWidth: function () {
            return this.getSize().width;
        },
        getHeight: function () {
            return this.getSize().height;
        },
        getPosition: function () {
            return this.position;
        },
        getPositionX: function () {
            return this.getPosition().x;
        },
        getPositionY: function () {
            return this.getPosition().y;
        },
        setSize: function (width, height) {
            this.size.width = width;
            this.size.height = height;
        },
        setWidth: function (width) {
            this.size.width = width;
        },
        setHeight: function (height) {
            this.size.height = height;
        },
        setPosition: function (x, y) {
            this.position.x = x;
            this.position.y = y;
        },
        setPositionX: function (x) {
            this.position.x = x;
        },
        setPositionY: function (y) {
            this.position.y = y;
        }
    });
}