wisemapping-frontend/packages/mindplot/lib/components/NodeGraph.js

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/*
* Copyright [2015] [wisemapping]
*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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const Topic = require('./Topic').default;
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const DragTopic = require('./DragTopic').default;
const INodeModel = require('./model/INodeModel').default;
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const NodeGraph = new Class(
/** @lends NodeGraph */ {
/**
* @constructs
* @param {mindplot.model.NodeModel} nodeModel
* @param {Object<Number, String, Boolean>} options
* @throws will throw an error if nodeModel is null or undefined
*/
initialize: function (nodeModel, options) {
$assert(nodeModel, 'model can not be null');
this._options = options;
this._mouseEvents = true;
this.setModel(nodeModel);
this._onFocus = false;
this._size = { width: 50, height: 20 };
},
/** @return true if option is set to read-only */
isReadOnly: function () {
return this._options.readOnly;
},
/** @return model type */
getType: function () {
var model = this.getModel();
return model.getType();
},
/**
* @param {String} id
* @throws will throw an error if the topic id is not a number
*/
setId: function (id) {
$assert(typeof topic.getId() == 'number', 'id is not a number:' + id);
this.getModel().setId(id);
},
_set2DElement: function (elem2d) {
this._elem2d = elem2d;
},
/**
* @return 2D element
* @throws will throw an error if the element is null or undefined within node graph
*/
get2DElement: function () {
$assert(this._elem2d, 'NodeGraph has not been initialized properly');
return this._elem2d;
},
/** @abstract */
setPosition: function (point, fireEvent) {
throw 'Unsupported operation';
},
/** */
addEvent: function (type, listener) {
var elem = this.get2DElement();
elem.addEvent(type, listener);
},
/** */
removeEvent: function (type, listener) {
var elem = this.get2DElement();
elem.removeEvent(type, listener);
},
/** */
fireEvent: function (type, event) {
var elem = this.get2DElement();
elem.trigger(type, event);
},
/** */
setMouseEventsEnabled: function (isEnabled) {
this._mouseEvents = isEnabled;
},
/** */
isMouseEventsEnabled: function () {
return this._mouseEvents;
},
/** @return {Object<Number>} size*/
getSize: function () {
return this._size;
},
/** @param {Object<Number>} size*/
setSize: function (size) {
this._size.width = parseInt(size.width);
this._size.height = parseInt(size.height);
},
/**
* @return {mindplot.model.NodeModel} the node model
*/
getModel: function () {
$assert(this._model, 'Model has not been initialized yet');
return this._model;
},
/**
* @param {mindplot.NodeModel} model the node model
* @throws will throw an error if model is null or undefined
*/
setModel: function (model) {
$assert(model, 'Model can not be null');
this._model = model;
},
/** */
getId: function () {
return this._model.getId();
},
/** */
setOnFocus: function (focus) {
if (this._onFocus != focus) {
this._onFocus = focus;
var outerShape = this.getOuterShape();
if (focus) {
outerShape.setFill(Topic.OUTER_SHAPE_ATTRIBUTES_FOCUS.fillColor);
outerShape.setOpacity(1);
} else {
outerShape.setFill(Topic.OUTER_SHAPE_ATTRIBUTES.fillColor);
outerShape.setOpacity(0);
}
this.setCursor('move');
// In any case, always try to hide the editor ...
this.closeEditors();
// Fire event ...
this.fireEvent(focus ? 'ontfocus' : 'ontblur', this);
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}
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},
/** @return {Boolean} true if the node graph is on focus */
isOnFocus: function () {
return this._onFocus;
},
/** */
dispose: function (workspace) {
this.setOnFocus(false);
workspace.removeChild(this);
},
/** */
createDragNode: function (layoutManager) {
var dragShape = this._buildDragShape();
return new DragTopic(dragShape, this, layoutManager);
},
_buildDragShape: function () {
$assert(false, '_buildDragShape must be implemented by all nodes.');
},
/** */
getPosition: function () {
var model = this.getModel();
return model.getPosition();
},
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}
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);
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/**
* creates a new topic from the given node model
* @memberof mindplot.Nodegraph
* @param {mindplot.model.NodeModel} nodeModel
* @param {Object} options
* @throws will throw an error if nodeModel is null or undefined
* @throws will throw an error if the nodeModel's type is null or undefined
* @throws will throw an error if the node type cannot be recognized as either central or main
* topic type
* @return {mindplot.CentralTopic|mindplot.MainTopic} the new topic
*/
NodeGraph.create = function (nodeModel, options) {
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const CentralTopic = require('./CentralTopic').default;
const MainTopic = require('./MainTopic').default;
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$assert(nodeModel, 'Model can not be null');
var type = nodeModel.getType();
$assert(type, 'Node model type can not be null');
var result;
if (type == INodeModel.CENTRAL_TOPIC_TYPE) {
result = new CentralTopic(nodeModel, options);
} else if (type == INodeModel.MAIN_TOPIC_TYPE) {
result = new MainTopic(nodeModel, options);
} else {
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$assert(false, 'unsupported node type:' + type);
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}
return result;
};
export default NodeGraph;