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Displaying witrh respect to path..
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Manoj Paul
Ranch Hand
Joined: Jan 18, 2007
Posts: 109
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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.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.add(new JScrollPane(panel)); // j2se 1.5 //f.getContentPane().add(new JScrollPane(panel)); // j2se 1.4 f.setSize(400,500); f.setLocation(200,200); // 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, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = images[j].createGraphics(); g2.setPaint(bgColor); 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); g2.dispose(); } 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++) try { 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
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Joe Ess
Bartender
Joined: Oct 29, 2001
Posts: 8291
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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 ]
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"blabbing like a narcissistic fool with a superiority complex" ~ N.A.
[How To Ask Questions On JavaRanch]
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Nathan Pruett
Bartender
Joined: Oct 18, 2000
Posts: 4121
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Closing this thread. Direct further discussion to the other thread.
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-Nate
Write once, run anywhere, because there's nowhere to hide! - /. A.C.
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subject: Displaying witrh respect to path..
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