CD Actual Thematic 7: Programming/CDAT7.iso/demos/VisualAge for Java 2.0 Entry/setup/data1.cab/ide-e/IDE/cache/1LZIHNE

Java Class File | 1998-09-16 | 6.2 KB | 213 lines

package com.sun.java.swing;

import java.awt.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.image.ColorModel;
import java.awt.image.ImageObserver;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.URL;

public class ImageIcon implements Icon, Serializable {
   transient Image image;
   transient int loadStatus;
   ImageObserver imageObserver;
   String description;
   protected static final Component component = new 1();
   protected static final MediaTracker tracker;
   int width;
   int height;

   static {
      tracker = new MediaTracker(component);
   }

   public ImageIcon() {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
   }

   public ImageIcon(byte[] imageData) {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
      this.image = Toolkit.getDefaultToolkit().createImage(imageData);
      if (this.image != null) {
         Object o = this.image.getProperty("comment", this.imageObserver);
         if (o instanceof String) {
            this.description = (String)o;
         }

         this.loadImage(this.image);
      }
   }

   public ImageIcon(byte[] imageData, String description) {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
      this.image = Toolkit.getDefaultToolkit().createImage(imageData);
      if (this.image != null) {
         this.description = description;
         this.loadImage(this.image);
      }
   }

   public ImageIcon(Image image) {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
      this.image = image;
      Object o = image.getProperty("comment", this.imageObserver);
      if (o instanceof String) {
         this.description = (String)o;
      }

      this.loadImage(image);
   }

   public ImageIcon(Image image, String description) {
      this(image);
      this.description = description;
   }

   public ImageIcon(String filename) {
      this(filename, filename);
   }

   public ImageIcon(String filename, String description) {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
      this.image = Toolkit.getDefaultToolkit().getImage(filename);
      this.description = description;
      this.loadImage(this.image);
   }

   public ImageIcon(URL location) {
      this(location, location.toExternalForm());
   }

   public ImageIcon(URL location, String description) {
      this.loadStatus = 0;
      this.description = null;
      this.width = -1;
      this.height = -1;
      this.image = Toolkit.getDefaultToolkit().getImage(location);
      this.description = description;
      this.loadImage(this.image);
   }

   public String getDescription() {
      return this.description;
   }

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

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

   public Image getImage() {
      return this.image;
   }

   public int getImageLoadStatus() {
      return this.loadStatus;
   }

   public ImageObserver getImageObserver() {
      return this.imageObserver;
   }

   protected void loadImage(Image image) {
      synchronized(tracker){}

      try {
         tracker.addImage(image, 0);

         try {
            tracker.waitForID(0, 5000L);
         } catch (InterruptedException var5) {
            System.out.println("INTERRUPTED while loading Image");
         }

         this.loadStatus = tracker.statusID(0, false);
         tracker.removeImage(image, 0);
         this.width = image.getWidth(this.imageObserver);
         this.height = image.getHeight(this.imageObserver);
      } catch (Throwable var6) {
         throw var6;
      }

   }

   public synchronized void paintIcon(Component c, Graphics g, int x, int y) {
      if (this.imageObserver == null) {
         g.drawImage(this.image, x, y, c);
      } else {
         g.drawImage(this.image, x, y, this.imageObserver);
      }

   }

   private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException {
      s.defaultReadObject();
      int w = s.readInt();
      int h = s.readInt();
      int[] pixels = (int[])s.readObject();
      Toolkit tk = Toolkit.getDefaultToolkit();
      ColorModel cm = ColorModel.getRGBdefault();
      this.image = tk.createImage(new MemoryImageSource(w, h, cm, pixels, 0, w));
   }

   public void setDescription(String description) {
      this.description = description;
   }

   public void setImage(Image image) {
      this.image = image;
      this.loadImage(image);
   }

   public void setImageObserver(ImageObserver observer) {
      this.imageObserver = observer;
   }

   private void writeObject(ObjectOutputStream s) throws IOException {
      s.defaultWriteObject();
      int w = this.getIconWidth();
      int h = this.getIconHeight();
      int[] pixels = new int[w * h];

      try {
         PixelGrabber pg = new PixelGrabber(this.image, 0, 0, w, h, pixels, 0, w);
         pg.grabPixels();
         if ((pg.getStatus() & 128) != 0) {
            throw new IOException("failed to load image contents");
         }
      } catch (InterruptedException var6) {
         throw new IOException("image load interrupted");
      }

      s.writeInt(w);
      s.writeInt(h);
      s.writeObject(pixels);
   }
}