将TIF图像添加到Java中的Jlist或Frame

Question

i am trying to load a .TIF formatted image to add into Jlist and display it into frame. Here is My code what i tried, here though the image is loaded my frame still looks empty and doesn't showing anything. please correct my code or suggest me that what should be the change i have to make display my .TIF image.

import javax.media.jai.PlanarImage;
import com.sun.media.jai.codec.ByteArraySeekableStream;
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.SeekableStream;
import java.io.FileInputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.awt.Image;
import java.awt.image.RenderedImage;
import javax.swing.DefaultListModel;
import javax.swing.JLabel;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JList;

public class ImageViewer {
  static Image load(byte[] data) throws Exception {
    Image image = null;
    SeekableStream stream = new ByteArraySeekableStream(data);
    String[] names = ImageCodec.getDecoderNames(stream);
    ImageDecoder dec =
            ImageCodec.createImageDecoder(names[0], stream, null);
    RenderedImage im = dec.decodeAsRenderedImage();
    image = PlanarImage.wrapRenderedImage(im).getAsBufferedImage();
    return image;
}



public static void main(String[] args) throws Exception {
    String path;

    DefaultListModel listModel = new DefaultListModel();
    JFrame frame = new JFrame("Split Pain");
    frame.setSize(700, 500);
    frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    path ="C:/Documents and Settings/Administrator/My Documents/My Pictures/tiff Images/CCITT_1.TIF";
    FileInputStream in = new FileInputStream(path);
    FileChannel channel = in.getChannel();
    ByteBuffer buffer = ByteBuffer.allocate((int) channel.size());
    channel.read(buffer);
    Image image = load(buffer.array());
    Image imageScaled =image.getScaledInstance(500, -1, Image.SCALE_SMOOTH);
    listModel.addElement(new ImageIcon(imageScaled));
    final JList list = new JList(listModel);
    frame.add(list);
    }
}

Answer 1

PlanarImage image = JAI.create("fileload", "C:\\JAVA\\mahes_24_m\\09-11-1988\\mdr16.tiff"); using this syntax u can load tiff image. BufferedImage bi = image.getAsBufferedImage(); add this bi to ListModel and give this ListModel to JList, and add JList to JFrame. but first u have to download JAI API to use PlanerImage Class.

Answer 2

You need to supply your own ListCellRenderer implementation to the List:

class ImageIconCellRenderer extends JLabel implements ListCellRenderer
{
    public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus){
        ImageIcon icon = (ImageIcon)value;
        setIcon(icon);
        return this;
    }
}

and then in the main method:

list.setCellRenderer(new ImageIconCellRenderer());

But I am not sure tiff images are supported by standard Java.