wisemapping-frontend/packages/mindplot/lib/components/CentralTopic.js
2021-10-04 17:05:34 -07:00

83 lines
2.3 KiB
JavaScript

/*
* 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.
*/
const Core = require('@wismapping/core-js');
const core = Core();
const Topic = require('./Topic').default;
const Shape = require('./util/Shape').default;
const CentralTopic = new Class(
/** @lends CentralTopic */ {
Extends: Topic,
/**
* @extends mindplot.Topic
* @constructs
* @param model
* @param options
*/
initialize(model, options) {
this.parent(model, options);
},
_registerEvents() {
this.parent();
// This disable the drag of the central topic. But solves the problem of deselecting the nodes when the screen is clicked.
this.addEvent('mousedown', (event) => {
event.stopPropagation();
});
},
/** */
workoutIncomingConnectionPoint() {
return this.getPosition();
},
/** */
setCursor(type) {
type = type == 'move' ? 'default' : type;
this.parent(type);
},
/** */
updateTopicShape() {},
_updatePositionOnChangeSize() {
// Center main topic ...
const zeroPoint = new core.Point(0, 0);
this.setPosition(zeroPoint);
},
/** */
getShrinkConnector() {
return null;
},
/** */
workoutOutgoingConnectionPoint(targetPosition) {
$assert(targetPosition, 'targetPoint can not be null');
const pos = this.getPosition();
const isAtRight = Shape.isAtRight(targetPosition, pos);
const size = this.getSize();
return Shape.calculateRectConnectionPoint(pos, size, !isAtRight);
},
},
);
export default CentralTopic;