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| import { assign } from 'min-dash';
import inherits from 'inherits';
import Refs from 'object-refs';
var parentRefs = new Refs({ name: 'children', enumerable: true, collection: true }, { name: 'parent' }),
labelRefs = new Refs({ name: 'labels', enumerable: true, collection: true }, { name: 'labelTarget' }),
attacherRefs = new Refs({ name: 'attachers', collection: true }, { name: 'host' }),
outgoingRefs = new Refs({ name: 'outgoing', collection: true }, { name: 'source' }),
incomingRefs = new Refs({ name: 'incoming', collection: true }, { name: 'target' });
/**
* @namespace djs.model
*/
/**
* @memberOf djs.model
*/
/**
* The basic graphical representation
*
* @class
*
* @abstract
*/
export function Base() {
/**
* The object that backs up the shape
*
* @name Base#businessObject
* @type Object
*/
Object.defineProperty(this, 'businessObject', {
writable: true
});
/**
* Single label support, will mapped to multi label array
*
* @name Base#label
* @type Object
*/
Object.defineProperty(this, 'label', {
get: function() {
return this.labels[0];
},
set: function(newLabel) {
var label = this.label,
labels = this.labels;
if (!newLabel && label) {
labels.remove(label);
} else {
labels.add(newLabel, 0);
}
}
});
/**
* The parent shape
*
* @name Base#parent
* @type Shape
*/
parentRefs.bind(this, 'parent');
/**
* The list of labels
*
* @name Base#labels
* @type Label
*/
labelRefs.bind(this, 'labels');
/**
* The list of outgoing connections
*
* @name Base#outgoing
* @type Array<Connection>
*/
outgoingRefs.bind(this, 'outgoing');
/**
* The list of incoming connections
*
* @name Base#incoming
* @type Array<Connection>
*/
incomingRefs.bind(this, 'incoming');
}
/**
* A graphical object
*
* @class
* @constructor
*
* @extends Base
*/
export function Shape() {
Base.call(this);
/**
* The list of children
*
* @name Shape#children
* @type Array<Base>
*/
parentRefs.bind(this, 'children');
/**
* @name Shape#host
* @type Shape
*/
attacherRefs.bind(this, 'host');
/**
* @name Shape#attachers
* @type Shape
*/
attacherRefs.bind(this, 'attachers');
}
inherits(Shape, Base);
/**
* A root graphical object
*
* @class
* @constructor
*
* @extends Shape
*/
export function Root() {
Shape.call(this);
}
inherits(Root, Shape);
/**
* A label for an element
*
* @class
* @constructor
*
* @extends Shape
*/
export function Label() {
Shape.call(this);
/**
* The labeled element
*
* @name Label#labelTarget
* @type Base
*/
labelRefs.bind(this, 'labelTarget');
}
inherits(Label, Shape);
/**
* A connection between two elements
*
* @class
* @constructor
*
* @extends Base
*/
export function Connection() {
Base.call(this);
/**
* The element this connection originates from
*
* @name Connection#source
* @type Base
*/
outgoingRefs.bind(this, 'source');
/**
* The element this connection points to
*
* @name Connection#target
* @type Base
*/
incomingRefs.bind(this, 'target');
}
inherits(Connection, Base);
var types = {
connection: Connection,
shape: Shape,
label: Label,
root: Root
};
/**
* Creates a new model element of the specified type
*
* @method create
*
* @example
*
* var shape1 = Model.create('shape', { x: 10, y: 10, width: 100, height: 100 });
* var shape2 = Model.create('shape', { x: 210, y: 210, width: 100, height: 100 });
*
* var connection = Model.create('connection', { waypoints: [ { x: 110, y: 55 }, {x: 210, y: 55 } ] });
*
* @param {String} type lower-cased model name
* @param {Object} attrs attributes to initialize the new model instance with
*
* @return {Base} the new model instance
*/
export function create(type, attrs) {
var Type = types[type];
Iif (!Type) {
throw new Error('unknown type: <' + type + '>');
}
return assign(new Type(), attrs);
} |