import java.awt.*;
import java.awt.image.*;

/**
 * Receives image pixels for PSGr
 * @author E.J. Friedman-Hill (C)1996
 * @author      ejfried@ca.sandia.gov
 * @author      http://herzberg.ca.sandia.gov
*/

public class PixelConsumer implements ImageConsumer {
  boolean complete = false;
  int xdim, ydim;
  int pix[][];

  PixelConsumer(Image picture) {
    int t;

    picture.getSource().startProduction(this);
    t = 1000;
    while(t>0 && !complete) {
      try {
        Thread.currentThread().sleep(100);
      } catch (Throwable ex) {
      }
      t -= 100;
    }
  }
  public void setProperties(java.util.Hashtable param) {
  }
  public void setColorModel(ColorModel param) {
  }
  public void setHints(int param) {
  }
  public void imageComplete(int param) {
    complete = true;
  }
  public void setDimensions(int x, int y) {
    xdim = x;
    ydim = y;
    pix = new int[x][y];
  }
  public void setPixels(int x1, int y1, int w, int h, 
                        ColorModel model, byte pixels[], int off, int scansize) {
    int x, y, x2, y2, sx, sy;
    // we're ignoring the ColorModel, mostly for speed reasons.
    x2 = x1+w;
    y2 = y1+h;
    sy = off;
    for(y=y1; y<y2; y++) {
      sx = sy;
      for(x=x1; x<x2; x++) 
        pix[x][y] = pixels[sx++];
      sy += scansize;
    }
  }
  public void setPixels(int x1, int y1, int w, int h, 
                        ColorModel model, int pixels[], int off, int scansize) {
    int x, y, x2, y2, sx, sy;
    // we're ignoring the ColorModel, mostly for speed reasons.
    x2 = x1+w;
    y2 = y1+h;
    sy = off;
    for(y=y1; y<y2; y++) {
      sx = sy;
      for(x=x1; x<x2; x++) 
        pix[x][y] = pixels[sx++];
      sy += scansize;
    }
  }
}