MapleCanvas.java

package provider;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

public class MapleCanvas {

    private File file;
    private int width;
    private int height;
    private BufferedImage image;

    public MapleCanvas(int width, int height, File fileIn) {
        this.width = width;
        this.height = height;
        this.file = fileIn;
    }

    public int getHeight() {
        return this.height;
    }

    public int getWidth() {
        return this.width;
    }

    public BufferedImage getImage() {
        loadImageIfNecessary();
        return this.image;
    }

    private void loadImageIfNecessary() {
        if (this.image == null) {
            try {
                this.image = ImageIO.read(this.file);

                this.width = this.image.getWidth();
                this.height = this.image.getHeight();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }
}