Gradient-generator-ui NPM

Gradient Generator UI

Visual and interactive gradient generator

Library to create a gradient generator in vanilla-js with interactive user interface in html

Installing

yarn add gradient-generator-ui

npm install gradient-generator-ui

Or with CDN links

<!-- Style -->
<link rel="stylesheet" href="https://unpkg.com/gradient-generator-ui@1.0.5/dist/gradient-generator.css" crossorigin>

<!-- Script -->
<script src="https://unpkg.com/gradient-generator-ui@1.0.5/dist/gradient-generator.js" crossorigin ></script>

Basic Usage

const gradientRoot = document.getElementById('gradient-root');

const myColorGen = new GradientGenerator({
  mainElement: gradientRoot,
  initialColors: [
    { colorHex: '#ff0000', position: 0 },
    { colorHex: '#00ff00', position: 50 },
    { colorHex: '#0000ff', position: 100 },
  ],
});

const colors1 = myColorGen.generateColors(50);
console.log(colors1); // Generate 50 colors using the first values

myColorGen.addColors(
  { colorHex: '#fafa00', position: 80 },
  { colorHex: '#001919', position: 30 }
);

const colors2 = myColorGen.generateColors(100);
console.log(colors2); // Generate 100 colors using the first values and the news

see example here

Without UI Element

const myColorGen = new GradientGenerator();

const colors1 = myColorGen.generateColors();
console.log(colors1); // Generate 100 colors using the default values

myColorGen.addColors(
  { colorHex: '#fafa00', position: 80 },
  { colorHex: '#001919', position: 30 }
);

const colors2 = myColorGen.generateColors(100);
console.log(colors2); // Generate 100 colors using the default values and the news

See this example here

With a UI Manager

const gradientRoot = document.getElementById('gradient-root');

const myColorGen = new GradientGenerator({ mainElement: gradientRoot });
const myGenManager = myColorGen.createUIManager({ keepChanges: false });

const addBtn = document.getElementById('add');
addBtn.addEventListener('click', () => {
  myGenManager.setAddMode();
});

const cancelBtn = document.getElementById('cancel');
cancelBtn.addEventListener('click', () => {
  myGenManager.cancelAddMode();
});

See this example here

API

GradientGenerator

Constructor Options:
- mainElement (default: null) - pass a empty HTMLElement root of the gradient.
- initialColors (default: { colorHex: '#ff0000', position: 10 }, { colorHex: '#ffff00', position: 40 }, { colorHex: '#00ff77', position: 70 } ) - pass an array of objects with a hexadecimal color and relative position (0 - 100)
generateColors(size = 100) - Generate the intermediate colors accord an expected number of colors generated
addColors(...{ colorHex, position }) - Add one or many new intermediate color with ther respective relative position
getGradientColors() - Get the gradient generator colors ordered by position
setGradientColors([{colorHex, position}]) - Reset the gradient generator colors base
createUIManager(ManagerConstructorOptions) - Get a new Generator Manager with this generator to interact with the user interface.

GeneratorManager

Constructor Options:
- generator: GradientGenerator - Pass the generator to manage
- keepChanges (default: true) - keep the changes on the interface in each interaction
activateAddMode() - Activates the interaction with the user interface to add a new element on click on the main element
cancelAddMode() - Deactivate the interaction with the user interface to add new elements
restoreColors() - if keepChanges is false, it restores the colors of the last restore point
saveColors() - Create a new restore point with current colors