wood burning stoves 2.0*
The moose likes Swing / AWT / SWT and the fly likes Displaying witrh respect to path.. Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Swing / AWT / SWT
Bookmark "Displaying witrh respect to path.." Watch "Displaying witrh respect to path.." New topic

Displaying witrh respect to path..

Manoj Paul
Ranch Hand

Joined: Jan 18, 2007
Posts: 112
Hello dudes

In my application for image display, those images are displayed which resides in the same folder as my program(code) is.... But now i want to display those images of folder respective to which an user click on a particular folder of local drives on a JTree... I am sending codes which i have written... Please take a view... and please make any necessary changes and reply with the changed codes.

import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
import javax.swing.*;

public class ThumbnailTest
Color bgColor;

public ThumbnailTest(SnapsGallery obj)

bgColor = UIManager.getColor("Panel.background");
BufferedImage[] images = loadImages();
BufferedImage[] tnails = createThumbnails(images);
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(5,5,5,5);
gbc.weightx = 1.0;
for(int j = 0; j < images.length; j++)
gbc.gridwidth = gbc.RELATIVE;
panel.add(new JLabel(new ImageIcon(images[j])), gbc);
// obj.jPanel2.add(new JLabel(new ImageIcon(images[j])), gbc);
gbc.gridwidth = gbc.REMAINDER;
panel.add(new JLabel(new ImageIcon(tnails[j])), gbc);
obj.jPanel2.add(new JLabel(new ImageIcon(tnails[j])), gbc);
JFrame f = new JFrame();
f.add(new JScrollPane(panel)); // j2se 1.5
//f.getContentPane().add(new JScrollPane(panel)); // j2se 1.4
// f.setVisible(true);

private BufferedImage[] createThumbnails(BufferedImage[] origs)
final int WIDTH = 100;
final int HEIGHT = 175;
BufferedImage[] images = new BufferedImage[origs.length];
AffineTransform at;
for(int j = 0; j < origs.length; j++)
images[j] = new BufferedImage(WIDTH, HEIGHT,
Graphics2D g2 = images[j].createGraphics();
g2.fillRect(0, 0, WIDTH, HEIGHT);
// scale to fit
double xScale = (double)WIDTH / origs[j].getWidth();
double yScale = (double)HEIGHT / origs[j].getHeight();
double scale = Math.min(xScale, yScale);
// center thumbnail image
double x = (WIDTH - origs[j].getWidth() * scale)/2;
double y = (HEIGHT - origs[j].getHeight() * scale)/2;
at = AffineTransform.getTranslateInstance(x, y);
at.scale(scale, scale);
g2.drawRenderedImage(origs[j], at);
return images;

private BufferedImage[] loadImages()
String prefix = "images\\";
String ext = ".jpg";
String[] fileNames = {
"2", "3", "5", "2"
BufferedImage[] images = new BufferedImage[fileNames.length];
for(int j = 0; j < fileNames.length; j++)
URL url = getClass().getResource(prefix + fileNames[j] + ext);
images[j] = ImageIO.read(url);
catch(MalformedURLException mue)
System.out.println("url: " + mue.getMessage());
catch(IOException ioe)
System.out.println("read: " + ioe.getMessage());
return images;
Here in the codes the file names are clearly given in the code and so those images are displayed... But now i want to display any image of the local drives according to user click on the JTree..
I am sure i need to change particularly this method...
private BufferedImage[] loadImages()

But i dont know what to change in this method... Please help

Waiting for your reply...
Thank you
Joe Ess

Joined: Oct 29, 2001
Posts: 8836

Please don't post the same question in multiple forums. It wastes people's time when they answer questions that have already been answered elsewhere.
[ April 09, 2007: Message edited by: Joe Ess ]

"blabbing like a narcissistic fool with a superiority complex" ~ N.A.
[How To Ask Questions On JavaRanch]
Nathan Pruett

Joined: Oct 18, 2000
Posts: 4121

Closing this thread. Direct further discussion to the other thread.

Write once, run anywhere, because there's nowhere to hide! - /. A.C.
subject: Displaying witrh respect to path..
Similar Threads
Problem with the JScrollPane
Image Resizing Woes
Displaying witrh respect to path in an Applet
Code to create Thumbnail in .jpg and .gif
Displaying witrh respect to path in an Applet