META-INF.dirigible.dev-tools.web_audio.graph_visualizer.NodeRendererUtility.js Maven / Gradle / Ivy
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {AudioParamRadius, InputPortRadius, LeftSideTopPadding, Point, Size, TotalInputPortHeight, TotalOutputPortHeight, TotalParamPortHeight} from './GraphStyle.js'; // eslint-disable-line no-unused-vars
/**
* Calculate the x, y value of input port.
* Input ports are placed near the top of the left-side border.
* @param {number} portIndex
* @return {!Point}
*/
export const calculateInputPortXY = portIndex => {
const y = InputPortRadius + LeftSideTopPadding + portIndex * TotalInputPortHeight;
return {x: 0, y: y};
};
/**
* Calculate the x, y value of output port.
* Output ports are placed near the center of the right-side border.
* @param {number} portIndex
* @param {!Size} nodeSize
* @param {number} numberOfOutputs
* @return {!Point}
*/
export const calculateOutputPortXY = (portIndex, nodeSize, numberOfOutputs) => {
const {width, height} = nodeSize;
const outputPortY = (height / 2) + (2 * portIndex - numberOfOutputs + 1) * TotalOutputPortHeight / 2;
return {x: width, y: outputPortY};
};
/**
* Calculate the x, y value of param port.
* Param ports are placed near the bottom of the left-side border.
* @param {number} portIndex
* @param {number} offsetY
* @return {!Point}
*/
export const calculateParamPortXY = (portIndex, offsetY) => {
const paramPortY = offsetY + TotalParamPortHeight * (portIndex + 1) - AudioParamRadius;
return {x: 0, y: paramPortY};
};