JavaExercises/Experiments/DrawImage.java at master · biblelamp/JavaExercises · GitHub

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import java.awt.*;

import java.io.*;

import javax.imageio.*;

import javax.swing.*;

public class DrawImage {

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

ImageFrame frame = new ImageFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

});

}

class ImageFrame extends JFrame {

public ImageFrame() {

setTitle("ImageTest");

setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

// adding a component to the frame

ImageComponent component = new ImageComponent();

add(component);

}

public static final int DEFAULT_WIDTH = 300;

public static final int DEFAULT_HEIGHT = 300;

}

class ImageComponent extends JComponent {

private Image image;

public ImageComponent() {

// get image (from http://iconbird.com/)

try {

image = ImageIO.read(new File("ball.png"));

} catch(IOException e) {

e.printStackTrace();

}

public void paintComponent(Graphics g) {

if(image == null)

return;

int imageWidth = image.getWidth(this);

int imageHeight = image.getHeight(this);

// displays the image in the upper left corner

g.drawImage(image, 0, 0, null);

// multiple image display panel

for(int i = 0; i * imageWidth <= getWidth(); i++)

for(int j = 0; j * imageHeight <= getHeight(); j++)

if(i + j > 0)

g.copyArea(0, 0, imageWidth, imageHeight, i * imageWidth, j * imageHeight);

}

JavaExercises/Experiments/DrawImage.java at master · biblelamp/JavaExercises · GitHub

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