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react-linear-gradient-picker

v3.0.1

Published

React linear gradient picker

Downloads

7,268

Readme

react-linear-gradient-picker

This package takes any color picker for you choice, And wraps it as a gradient picker. This plays well with the package angle picker, which allows your users to play with the gradient angle.

What you need to know before installing?

  • This package is using hooks, which means you need to use React 16.8 or higher.

Installation

npm i react-linear-gradient-picker

Gradient Picker Usage

import React, { useState } from 'react';
import { Panel as ColorPicker } from 'rc-color-picker';
import { GradientPicker } from 'react-linear-gradient-picker';
import 'react-linear-gradient-picker/dist/index.css';

const WrappedColorPicker = ({ onSelect, ...rest }) => (
	<ColorPicker {...rest} onChange={c => {
		onSelect(c.color, c.alpha / 100);
	}}/>
);

const App = () => {
    const [palette, setPalette] = useState([
        { offset: '0.00', color: 'rgb(238, 241, 11)' },
        { offset: '0.49', color: 'rgb(215, 128, 37)' },
        { offset: '1.00', color: 'rgb(126, 32, 207)' }
    ]);

    return (
        <GradientPicker {...{
            width: 320,
            paletteHeight: 32,
            palette,
            onPaletteChange: setPalette
        }}>
            <WrappedColorPicker/>
        </GradientPicker>
    );
};

Accepted props

| Name | Type | Default Value | Required? | Description |-|-|-|-|- | palette | PaletteColor[] | undefined | Yes | The gradient pickers color palette, Each palette color struct is described below | onPaletteChange | Function | undefined | Yes | The function to trigger upon palette change (Can be either from stop drag or color select). | paletteHeight | Number | 32 | No | The stops palette display area height | width | Number | 400 | No | Determines the width of the gradient picker | stopRemovalDrop | Number | 50 | No | Sets the Y stop drop removal offset, If the user will drag the color stop further than specified, Color will be removed | maxStops | Number | 5 | No | The max gradient picker palette length can have | minStops | Number | 2 | No | The min gradient picker palette length can have

|> Palette Color | Name | Type | Default Value | Required? | Description |-|-|-|-|- | color | String | | Yes | The stop color, can be either hex of rgb format. | `offset`| `Number` | | Yes | The stop color offset in percent. | opacity| Number | 1 | No | The stop color opacity. | active| Boolean | `` | No | Rather the current color is active (selected) or not.

Gradient Picker Popover Usage

import React, { useState } from 'react';
import { SketchPicker } from 'react-color';
import { GradientPickerPopover } from 'react-linear-gradient-picker';
import 'react-linear-gradient-picker/dist/index.css';

const rgbToRgba = (rgb, a = 1) => rgb
	.replace('rgb(', 'rgba(')
	.replace(')', `, ${a})`)

const WrapperPropTypes = {
	onSelect: PropTypes.func
};

const WrappedSketchPicker = ({ onSelect, ...rest }) => {
	return (
		<SketchPicker {...rest}
					  color={rgbToRgba(rest.color, rest.opacity)}
					  onChange={c => {
						  const { r, g, b, a } = c.rgb;
						  onSelect(`rgb(${r}, ${g}, ${b})`, a);
					  }}/>
	);
}

const initialPallet = [
	{ offset: '0.00', color: 'rgb(238, 241, 11)' },
	{ offset: '1.00', color: 'rgb(126, 32, 207)' }
];

const App = () => {
	const [open, setOpen] = useState(false);
	const [angle, setAngle] = useState(90);
	const [palette, setPalette] = useState(initialPallet);

	return (
		<GradientPickerPopover {...{
			open,
			setOpen,
			angle,
			setAngle,
			width: 220,
			maxStops: 3,
			paletteHeight: 32,
			palette,
			onPaletteChange: setPalette
		}}>
			<WrappedSketchPicker/>
		</GradientPickerPopover>
	);
};

export default App;

Accepted props

| Name | Type | Default Value | Required? | Description |-|-|-|-|- | trigger | React Component | defaultTrigger | No | The popover trigger component, Will use default implementation if empty. | open | Boolean | false | Yes | Controls the popover open state | setOpen | Function | undefined | Yes | The setOpen method to be called upon open changes | showGradientTypePicker | Boolean | true | No | Rather to show the gradientType picker control. | showAnglePicker | Boolean | true | No | Rather to show the anglePicker picker control. | angle | Number | undefined | No | The angle picker angle value | setAngle | Function | undefined | No | Then angle picker setAngle method to be called upon angle changes

  • This component accepts all of <GradientPicker/> pros.

Angle Picker Usage

import React, { useState } from 'react';
import { AnglePicker } from 'react-linear-gradient-picker';
import 'react-linear-gradient-picker/dist/index.css';

const App = () => {
    const [angle, setAngle] = useState(25);

    return (
        <AnglePicker angle={angle} setAngle={setAngle}/>
    );
};

Accepted props

| Name | Type | Default Value | Required? | Description |-|-|-|-|- | angle | Number | undefined | Yes | The controlled angle. | setAngle | Function | undefined | Yes | The set angle method to be trigger after an angle was changes. | size | Number | 48 | No | Determines the size of the angle picker | snap | Number | 5 | No | Determines the angle change snapping, Can be removed with setting as 0