import java.lang.*;
import java.util.*;
import java.awt.*;
import java.io.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class unsharpFilter extends operator1DInt{


  JLabel kLabel = new JLabel("K parameter");
  JTextField kText = new JTextField("0.7",5);
  JButton applyButton = new JButton("Apply");
  Unsharp unsharpOp = new Unsharp();
  static int number=0;
  String type = new String("Unsharp");

  public unsharpFilter(){
  }

  public unsharpFilter(JPanel panel, linkData links){
    ++number;
    setName(type+"_"+number);
    setParameters();
    setType(type);
    setBox(panel,links,1,1);
  }
  /**
   * Loads the required parameters (number of iterations)
   * from the input stream, so the operator can be recreated in an 
   * identical state to when it was saved.
   * @param tokenizer the input stream split into tokens
   * @throws IOException if error occurs during token retrieval
   */
  public void loadParameters(StreamTokenizer tokenizer) throws IOException{
    int tokenType;
    tokenType = tokenizer.nextToken();
    double value = (double) tokenizer.nval;
    kText. setText(String. valueOf(value));

    //Repack the components in the interface
    parameters.pack();
    parameters.setVisible(false);
  }
  /**
   * Returns a String representing all the parameters for this operator
   * for the purpose of saving the system setup (and being able to load
   * it again at a future date).
   */
  public String saveParameters(){
    String saveData = new String();
    
    //Add any parameters to the string
    saveData = kText.getText();
    return saveData;
  }
  
  void setParameters(){
    /**
     *This function is used to set up the parameters window. This window
     *should contain enough parameters to be able to run the operator
     *although parameters like scaling and offset are not required as there
     *is an operator already defined to do this. The interface components
     *should be added to the parameters frame. In this example a single panel
     *is created which is used to hold a label saying there are no paramters.
     *In general this will not be true of most operators.
     */
    parameters = new JFrame(name);
    panel = new JPanel();
    panel.add(kLabel);
    panel.add(kText);
    panel.add(applyButton);
    applyButton.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
	go();
      }});

    parameters.getContentPane().add(panel);
    parameters.pack();
    parameters.setVisible(false);
  }

  public void go(){
    
    System.out.println(name);

    if(getInput1()!=null){
      try {
        System.out.println("Input Width 1 "+getInput1().getWidth());
        output1 = new image1DInt(input1.getWidth(),input1.getHeight(),imageConversions.pix2gs(unsharpOp.unsharp_image(imageConversions.gs2pix(input1.getValues()),input1.getWidth(),input1.getHeight(),(new Double(kText.getText()).doubleValue()))));
      }
      catch(NumberFormatException e){
        JOptionPane.showMessageDialog(null,("Invalid Parameters Specified"),("Error!"), JOptionPane.WARNING_MESSAGE);
        return;
      }
      System.out.println("Output width "+getOutput1().getWidth());
      propagate();
    }
  }
}