window.multigraph.util.namespace("window.multigraph.core", function (ns) {
    "use strict";

    /**
     * @module multigraph
     * @submodule core
     */

    var utilityFunctions = window.multigraph.utilityFunctions,
        defaultValues = utilityFunctions.getDefaultValuesFromXSD(),
        attributes = utilityFunctions.getKeys(defaultValues.title),
        Title;

    /**
     * Title is a Jermiane model that controls Graph Titles.
     *
     * @class Title
     * @for Title
     * @constructor
     * @param {Text} text
     * @param {Graph} graph
     * @author jrfrimme
     */
    Title = new window.jermaine.Model("GraphTitle", function () {
        /**
         * Pointer to the Title's parent Graph Jermaine model.
         *
         * @property graph
         * @type {Graph}
         * @author jrfrimme
         */
        this.hasA("graph").which.validatesWith(function (graph) {
            return graph instanceof window.multigraph.core.Graph;
        });
        /**
         * The text of the title.
         *
         * @property text
         * @type {Text}
         * @author jrfrimme
         */
        this.hasA("text").which.validatesWith(function (text) {
            return text instanceof window.multigraph.core.Text;
        });
        /**
         * Determines if the Title is positioned relative to the Graphs `plot` or `padding`
         * box.
         *
         * @property frame
         * @type {String}
         * @author jrfrimme
         */
        this.hasA("frame").which.isA("string");
        /**
         * The width of the border to be drawn around the title in pixel; use a value of `0`
         * to not draw a border.
         *
         * @property border
         * @type {Integer}
         * @author jrfrimme
         */
        this.hasA("border").which.isAn("integer");
        /**
         * Background color for the Title's region.
         *
         * @property color
         * @type {RGBColor}
         * @author jrfrimme
         */
        this.hasA("color").which.validatesWith(function (color) {
            return color instanceof window.multigraph.math.RGBColor;
        });
        /**
         * Color for the Title's border.
         *
         * @property bordercolor
         * @type {RGBColor}
         * @author jrfrimme
         */
        this.hasA("bordercolor").which.validatesWith(function (bordercolor) {
            return bordercolor instanceof window.multigraph.math.RGBColor;
        });
        /**
         * Opacity of the Title's region.
         *
         * @property opacity
         * @type {Number}
         * @author jrfrimme
         */
        this.hasA("opacity").which.isA("number");
        /**
         * The width of the padding between the Title's text and its border in pixels; use a
         * value of `0` to not draw the padding.
         *
         * @property padding
         * @type {Integer}
         * @author jrfrimme
         */
        this.hasA("padding").which.isAn("integer");
        /**
         * Determines whether the corners of the title appear rounded. If cornerradius is 0,
         * which is the default, the corners are drawn square. If cornerradius > 0, then the
         * corners are rounded off using circles whose radius is cornerradius pixels.
         *
         * @property cornerradius
         * @deprecated
         * @type {Integer}
         * @author jrfrimme
         */
        this.hasA("cornerradius").which.isAn("integer");
        /**
         * A coordinate pair which gives the relative location of the Title's anchor point.
         *
         * @property anchor
         * @type {Point}
         * @author jrfrimme
         */
        this.hasA("anchor").which.validatesWith(function (anchor) {
            return anchor instanceof window.multigraph.math.Point;
        });
        /**
         * A coordinate pair which gives the location of the Title's base point, relative to
         * its Graph's plot or padding box - determined by the `frame` attribute.
         *
         * @property base
         * @type {Point}
         * @author jrfrimme
         */
        this.hasA("base").which.validatesWith(function (base) {
            return base instanceof window.multigraph.math.Point;
        });
        /**
         * A coordinate pair of pixel offsets for the base point.
         *
         * @property position
         * @type {Point}
         * @author jrfrimme
         */
        this.hasA("position").which.validatesWith(function (position) {
            return position instanceof window.multigraph.math.Point;
        });
        /**
         * The font-size of the title. Currently is a constant.
         *
         * @property font-size
         * @type {String}
         * @author jrfrimme
         */
        this.hasA("fontSize").which.isA("string").and.defaultsTo("18px");

        /**
         * Determines the geometry of the Title's text.
         *
         * @method initializeGeometry
         * @chainable
         * @param {Object} graphicsContext
         * @author jrfrimme
         */
        this.respondsTo("initializeGeometry", function (graphicsContext) {
            graphicsContext.fontSize = this.fontSize();
            this.text().initializeGeometry(graphicsContext);
            return this;
        });

        /**
         * Renders the Graph Title. Overridden by implementations in graphics drivers.
         *
         * @method render
         * @private
         * @author jrfrimme
         */
        this.respondsTo("render", function () {});

        this.isBuiltWith("text", "graph");

        utilityFunctions.insertDefaults(this, defaultValues.title, attributes);

    });

    ns.Title = Title;

});