JPanelDemo.java

package com.kennycason.kumo;

import com.kennycason.kumo.bg.PixelBoundryBackground;
import com.kennycason.kumo.font.scale.LinearFontScalar;
import com.kennycason.kumo.nlp.FrequencyAnalyzer;
import com.kennycason.kumo.palette.ColorPalette;

import javax.swing.*;
import java.awt.*;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * Created by kenny on 2/21/16.
 *
 *
 */
public class JPanelDemo extends JPanel {

    private final WordCloud wordCloud;

    public static void main(String[] args) throws IOException {
        final JFrame frame = new JFrame("JPanel WordCloud");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(new JPanelDemo());
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    public JPanelDemo() throws IOException {
        wordCloud = buildWordCloud();

        final JLabel wordCloudLabel = new JLabel(new ImageIcon(wordCloud.getBufferedImage()));
        add(wordCloudLabel);
        repaint();
    }

    private static WordCloud buildWordCloud() throws IOException {
        final FrequencyAnalyzer frequencyAnalyzer = new FrequencyAnalyzer();
        frequencyAnalyzer.setWordFrequenciesToReturn(300);
        frequencyAnalyzer.setMinWordLength(5);

        final List<WordFrequency> wordFrequencies = frequencyAnalyzer.load(getInputStream("text/datarank.txt"));
        final Dimension dimension = new Dimension(500, 312);
        final WordCloud wordCloud = new WordCloud(dimension, CollisionMode.PIXEL_PERFECT);
        wordCloud.setPadding(1);
        wordCloud.setBackground(new PixelBoundryBackground(getInputStream("backgrounds/whale_small.png")));
        wordCloud.setColorPalette(new ColorPalette(new Color(0x4055F1), new Color(0x408DF1), new Color(0x40AAF1), new Color(0x40C5F1), new Color(0x40D3F1), new Color(0xFFFFFF)));
        wordCloud.setFontScalar(new LinearFontScalar(10, 40));
        wordCloud.build(wordFrequencies);

        return wordCloud;
    }

    private static InputStream getInputStream(final String path) {
        return Thread.currentThread().getContextClassLoader().getResourceAsStream(path);
    }
}