/* 

 *  Copyright 2012 Institut de recherche et d'innovation 

 *  contributor(s) : Samuel Huron, Raphael Velt

 *   

 *  contact@iri.centrepompidou.fr

 *  http://www.iri.centrepompidou.fr 

 *   

 *  This software is a computer program whose purpose is to show and add annotations on a video .

 *  This software is governed by the CeCILL-C license under French law and

 *  abiding by the rules of distribution of free software. You can  use, 

 *  modify and/ or redistribute the software under the terms of the CeCILL-C

 *  license as circulated by CEA, CNRS and INRIA at the following URL

 *  "http://www.cecill.info". 

 *  

 *  The fact that you are presently reading this means that you have had

 *  knowledge of the CeCILL-C license and that you accept its terms.

*/

/* Declaring the Renkan Namespace Rkns and Default values */

Rkns = {

    _MIN_DRAG_DISTANCE: 2,

    _NODE_RADIUS: 20,

    _NODE_FONT_SIZE: 14,

    _ARROW_LENGTH: 20,

    _ARROW_WIDTH: 15,

    _RENDER: 1,

    _SAVE: 2,

    _RENDER_AND_SAVE: 3

}

Rkns.$ = jQuery;

Rkns._ = _;

    if (typeof _project !== "undefined") {

        this._project = _project;

        this._callbackQueue = [];

        this._loaded = false;

    }

}

    var _this = this;

    Rkns._.defer(function() {

        _callback.call(_this);

    });

}

    this._loaded = true;

    while (this._callbackQueue.length) {

        this.deferCallback(this._callbackQueue.splice(0,1)[0]);

    }

}

    if (this._loaded) {

        this.deferCallback(_callback);

    } else {

        this._callbackQueue.push(_callback);

    }

}

    }

    if (typeof _opts.language == "undefined" || typeof Rkns.i18n[_opts.language] == "undefined") {

        _opts.language = "en";

    }

    }

    var _this = this;

        }

    });

}

/* Utility functions */

Rkns.Utils = {

    _ID_AUTO_INCREMENT : 0,

    _ID_BASE : (function(_d) {

        function pad(n){return n<10 ? '0'+n : n}

        function fillrand(n) {

            var _res = ''

            for (var i=0; i<n; i++) {

                _res += Math.floor(16*Math.random()).toString(16);

            }

            return _res;

        }

        return _d.getUTCFullYear() + '-'  

            + pad(_d.getUTCMonth()+1) + '-'  

            + pad(_d.getUTCDate()) + '-'

            + fillrand(16);

    })(new Date()),

    getUID : function(_base) {

        var _n = (++this._ID_AUTO_INCREMENT).toString(16),

            _base = (typeof _base === "undefined" ? "" : _base + "-" );

        while (_n.length < 4) {

            _n = '0' + _n

        }

        return _base + this._ID_BASE + '-' + _n;

    },

    inherit : function(_baseClass, _callbefore) {

        var _class = function() {

            if (typeof _callbefore === "function") {

                _callbefore.apply(this, Array.prototype.slice.call(arguments, 0));

            }

            if (typeof _baseClass.prototype._init !== "function") {

                _baseClass.prototype._init = function() {}

            }

            _baseClass.apply(this, Array.prototype.slice.call(arguments, 0));

            this._init.apply(this, Array.prototype.slice.call(arguments, 0));

        }

        _class.prototype = new _baseClass();

        return _class;

    }

}