React UI Components Documentation

ReactJS TreeMap Component

The TreeMap component for React represents a widget that displays hierarchical data as a set of nested rectangles.

Prerequisites

Refer to React Getting Started before you start with this help topic.

Configuration

The TreeMap component for React requires the following imports.

 
import React from 'react';
import ReactDOM from 'react-dom';
 
import JqxTreeMap from 'jqwidgets-react/react_jqxtreemap.js';

Then we create our component class. Properties and methods are put as React props.

 
class App extends React.Component {
  render () {
    let data = [
	    {
		    label: 'USA',
		    value: 104
	    }, {
		    label: 'People\'s Republic of China',
		    value: 88
	    }, {
		    label: 'Great Britain',
		    value: 65
	    }, {
		    label: 'Russian Federation',
		    value: 82
	    }, {
		    label: 'Germany',
		    value: 44
	    }, {
		    label: 'Republic of Korea',
		    value: 28
	    }, {
		    label: 'France',
		    value: 34
	    }, {
		    label: 'Italy',
		    value: 28
	    }, {
		    label: 'Hungary',
		    value: 17
	    }, {
		    label: 'Australia',
		    value: 35
	    }, {
		    label: 'Japan',
		    value: 38
	    }, {
		    label: 'Kazakhstan',
		    value: 13
	    }, {
		    label: 'Netherlands',
		    value: 20
	    }, {
		    label: 'Ukraine',
		    value: 20
	    }, {
		    label: 'New Zealand',
		    value: 13
	    }, {
		    label: 'Cuba',
		    value: 14
	    }
    ];
    return (
      <JqxTreeMap
          width={850} height={600} colorRange={50}
          source={data} 
      />
    )
  }
}

Finally we render our class in the desired HTML element:

 
ReactDOM.render(<App />, document.getElementById('app'));

Events Methods & Properties

In order to bind to any event, change any property or call any method, we need a reference to the component.
For that we use the React "ref" Callback Attribute:

 
<JqxTreeMap
    ref='myTreeMap'
    width={850} height={600}
    source={data} 
/>

Now, when we have a reference, we need to call the desired event/property/method.
This is done in the componentDidMount() React Component Lifecycle method.

 
class App extends React.Component {
  componentDidMount()
  {
     //your logic
  }
  render ()
  {
    return
    (
      ....
    )
  }
};

Events

The bindingComplete event is triggered when the user selects an item.

The following example demonstrates how to add an event listener:

 
componentDidMount ()
{
 
  this.refs.myTreeMap.on('bindingComplete', (event) =>
  {
     //your logic
  });
 
}

Methods & Properties

This is how you call methods & props:

 
//Destroy Method
this.refs.myTreeMap.destroy();
 
//Render Method
this.refs.myTreeMap.render());
 
//Get Properties
let height = this.refs.myTreeMap.height();
 
//Set Properties
this.refs.myTreeMap.height(450);

Every component have a method setOptions which accepts a object as an argument. This object contains component settings.

 
this.refs.myTreeMap.setOptions({
    colorRange: 120, width: 300, height: 350
})

Every component also have a method getOptions which returns a object containing the component settings.

 
let options = this.refs.myTreeMap.getOptions();

TreeMap Examples

Overview

The following example demonstrates how to create a TreeMap component.

 
import React from 'react';
import ReactDOM from 'react-dom';
 
import JqxTreeMap from 'jqwidgets-react/react_jqxtreemap.js';
 
class App extends React.Component {
    render () {
        let data = [
          {
              label: 'Drama',
              value: null,
              color: '#B3FAFF'
          },
          {
              label: 'Crime',
              value: null,
              color: '#95FF7A'
          },
          {
              label: 'Action',
              value: null,
              color: '#FFA3CE'
          },
          {
              label: 'Comedy',
              value: null,
              color: '#F1A3FF'
          },
          {
              label: 'The Shawshank Redemption',
              value: 15.4,
              parent: 'Drama',
              data: { description: "Two imprisoned men bond over a number of years, finding solace and eventual redemption through acts of common decency.", title: "The Shawshank Redemption (1994)" }
          },
          {
              label: 'Top Gun',
              value: 4,
              parent: 'Drama',
              data: { description: "As students at the Navy's elite fighter weapons school compete to be best in the class, one daring young flyer learns a few things from a civilian instructor that are not taught in the classroom.", title: "Top Gun (1986)" }
          },
          {
              label: 'The Master',
              value: 4.5,
              parent: 'Drama',
              data: { description: "A Naval veteran arrives home from war unsettled and uncertain of his future - until he is tantalized by The Cause and its charismatic leader.", title: "The Master (2012)" }
          },
          {
              label: 'Argo',
              value: 6.8,
              parent: 'Drama',
              data: { description: "A dramatization of the 1980 joint CIA-Canadian secret operation to extract six fugitive American diplomatic personnel out of revolutionary Iran.", title: "Argo (2012)" }
          },
          {
              label: 'Fight Club',
              value: 8.8,
              parent: 'Crime',
              data: { description: "An insomniac office worker looking for a way to change his life crosses paths with a devil-may-care soap maker and they form an underground fight club that evolves into something much, much more.", title: "Fight Club (1999)" }
          },
          {
              label: 'The Godfather',
              value: 11,
              parent: 'Crime',
              data: { description: "The aging patriarch of an organized crime dynasty transfers control of his clandestine empire to his reluctant son.", title: "The Godfather (1972)" }
          },
          {
              label: 'The Dark Knight',
              value: 8.9,
              parent: 'Action',
              data: { description: "When Batman, Gordon and Harvey Dent launch an assault on the mob, they let the clown out of the box, the Joker, bent on turning Gotham on itself and bringing any heroes down to his level.", title: "The Dark Knight (2008)" }
          },
          {
              label: 'Pulp Fiction',
              value: 6.0,
              parent: 'Crime',
              data: { description: "The lives of two mob hit men, a boxer, a gangster's wife, and a pair of diner bandits intertwine in four tales of violence and redemption.", title: "Pulp Fiction (1994)" }
          },
          {
              label: 'Forrest Gump',
              value: 8.7,
              parent: 'Drama',
              data: { description: "Forrest Gump, while not intelligent, has accidentally been present at many historic moments, but his true love, Jenny Curran, eludes him.", title: "Forrest Gump (1994)" }
          },
          {
              label: 'The Matrix',
              value: 8.7,
              parent: 'Action',
              data: { description: "A computer hacker learns from mysterious rebels about the true nature of his reality and his role in the war against its controllers.", title: "The Matrix (1999)" }
          },
          {
              label: '12 Angry Men',
              value: 7.9,
              parent: 'Drama',
              data: { description: "Twelve men must decide the fate of one when one juror objects to the jury's decision.", title: "12 Angry Men (TV 1997)" }
          },
          {
              label: 'Star Wars',
              value: 10.8,
              parent: 'Action',
              data: { description: "Luke Skywalker, a spirited farm boy, joins rebel forces to save Princess Leia from the evil Darth Vader, and the galaxy from the Empire's planet-destroying Death Star..", title: "Star Wars: Episode IV - A New Hope (1977)" }
          },
          {
              label: 'Inception',
              value: 9.8,
              parent: 'Action',
              data: { description: "A skilled extractor is offered a chance to regain his old life as payment for a task considered to be impossible.", title: "Inception (2010)" }
          },
          {
              label: 'Snatch.',
              value: 4.3,
              parent: 'Crime',
              data: { description: "Unscrupulous boxing promoters, violent bookmakers, a Russian gangster, incompetent amateur robbers, and supposedly Jewish jewelers fight to track down a priceless stolen diamond.", title: "Snatch (2000)" }
          },
          {
              label: 'Toy Story',
              value: 9.3,
              parent: 'Comedy',
              data: { description: "A cowboy doll is profoundly threatened and jealous when a new spaceman figure supplants him as top toy in a boy's room.", title: "Toy Story(2005)" }
          },
          {
              label: 'Skyfall',
              value: 7,
              parent: 'Crime',
              data: { description: "Bond's loyalty to M is tested when her past comes back to haunt her. Whilst MI6 comes under attack, 007 must track down and destroy the threat, no matter how personal the cost.", title: "Skyfall (2012)" }
          },
          {
              label: 'Parker',
              value: 5.6,
              parent: 'Crime',
              data: { description: "A thief with a unique code of professional ethics is double-crossed by his crew and left for dead. Assuming a new disguise and forming an unlikely alliance with a woman on the inside, he looks to hijack the score of the crew's latest heist.", title: "Parker (1994)" }
          },
          {
              label: 'District 9',
              value: 6.0,
              parent: 'Action',
              data: { description: "An extraterrestrial race forced to live in slum-like conditions on Earth suddenly finds a kindred spirit in a government agent who is exposed to their biotechnology.", title: "District 9 (2009)" }
          },
          {
              label: 'Stalag 17',
              value: 6.1,
              parent: 'Comedy',
              data: { description: "When two escaping American World War II prisoners are killed, the German POW camp barracks black marketeer, J.J. Sefton, is suspected of being an informer.", title: "Stalag 17 (1953)"}
          }
        ];
 
        let renderCallbacks =
        {
          '*': (element, value) => {
              if (value.data) {
                  element.jqxTooltip({
                      content: '<div><div style="font-weight: bold; max-width: 200px; font-family: verdana; font-size: 13px;">' + value.data.title + '</div><div style="width: 200px; font-family: verdana; font-size: 12px;">' + value.data.description + '</div></div>',
                      position: 'mouse',
                      autoHideDelay: 6000,
                      theme: theme
                  });
              } else if (value.data === undefined) {
                  element.css({
                      backgroundColor: '#fff',
                      border: '1px solid #555'
                  });
              }
          }
        };
        return (
            <JqxTreeMap
                width={850} height={600} colorRange={50}
                source={data} renderCallbacks={renderCallbacks}
            />
        )
    }
}
 
ReactDOM.render(<App />, document.getElementById('app'));

TreeMap API

API Reference of the jQWidgets TreeMap component for React: TreeMap API