Re: wants more options in choosing the name and type of image

bH wrote:
...


OK - that was something I could work with.
Here is my version. The details are in the
comments.

<sscce>
import javax.swing.*;
import java.awt.*;
import java.awt.image.*;
import javax.swing.border.BevelBorder;

import java.io.File;
import java.net.*;

public class ImageOnPanel
  extends JPanel {

  private static final String title = "Image On Panel";
  private static final int width = 510;
  private static final int height = 330;

  String imageName;
  Image myImage;

  // Constructor
  public ImageOnPanel(String name) {
    imageName = name;

    // what was the second panel for?
    // I removed it, and added the border in the main..
    // this.setLayout(new BorderLayout());
    // imagePanel = new JPanel() {

    // MOVED paintComponent method to ImageOnPanel class

    // };
    // this.add(imagePanel, BorderLayout.CENTER);
    // added this border stuff in 8/06/04

    // <rant>I hate these String based forms of methods or
    // classes treating the String as a File/URL - if the
    // method needs a damned File or URL - it should
    // accept only objects of those flavors</rant>
    // myImage = Toolkit.getDefaultToolkit().getImage(imageName);

    File imageFile = new File(imageName);
    System.out.println( "imageFile: " +imageFile.exists());
    try {
      myImage = Toolkit.
      getDefaultToolkit().
      getImage( imageFile.toURI().toURL() );

      // some components implememnt a MediaTracker
      // for you - but we imlement our own, for the
      // custom painting..
      MediaTracker mt = new MediaTracker(this);
      mt.addImage(myImage, 0);
      try {
        mt.waitForAll();
      } catch(InterruptedException e) {
        //wake and continue
      }
    } catch(MalformedURLException e) {
      JOptionPane.showMessageDialog(this, "Problem loading image!");
    }
  }

  /** Why did you make this 'protected' access? */
  protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.drawImage(myImage, 0, 0, Color.white,this);
  }

  public static void main(String[] args) throws Exception {
    String name = null;
    JFrame myFrame = new JFrame(title);

    if (args.length==0) {
      // *JFileChooser* is the actual answer to your question,
      // ..as far as I recall the question!
      JFileChooser jfc = new JFileChooser();
      while ( JFileChooser.APPROVE_OPTION != jfc.showOpenDialog(myFrame) ) {
      }
      java.io.File f = jfc.getSelectedFile();
      name = f.getCanonicalPath();
    } else {
      name = args[0];
    }
    System.out.println( name );
    JPanel border = new JPanel(new BorderLayout());
    BevelBorder loweredBevelBorder =
      (BevelBorder)BorderFactory.createLoweredBevelBorder();
    border.setBorder(loweredBevelBorder);
    myFrame.getContentPane().add(
      new ImageOnPanel(name),
      BorderLayout.CENTER);
    myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    myFrame.pack();
    myFrame.setSize(new Dimension(width, height));
    myFrame.setVisible(true);
  }
}
</sscce>

HTH

--
Andrew Thompson
http://www.athompson.info/andrew/

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