package edu.calpoly.cpe205.fetter;
import javax.swing.*;
import java.util.*;
import java.io.*;
import java.lang.reflect.*;
import java.lang.*;
import java.awt.*;
import javax.swing.event.*;
import java.awt.event.*;

/**
 * This class manages all the GUI components used to display information
 * about a field. This class also responds to UI events triggered by 
 * these GUI components.
 */ 
// Author: Wes Strickland
// Version History
//   Nov 18, 2000 - comments/pseudocode
//   Nov 29, 2000 - (Phillip Hansen) added code to the constructor
//   Nov 30, 2000 - (Mike Hebron) changed class description
//   Feb  9, 2001 - (Phillip Hansen) performed code walkthrough

public class FieldRow extends RowAbstract
{

    /**
     * Constructs the FieldRow
     * <p>
     * Pre-conditions: none<br>
     * Post-conditions: FieldRow object is constructed
     * @param fieldData of type FieldDataInterface
     */

    public FieldRow(FieldDataInterface data)
    {
        // SET fieldData to data
        fieldData = data;
        // CALL getName of fieldData returns X
        // CALL constructor of JButton
        // CALL setName with JButton
        name = new JButton(fieldData.getName());    // Name of the fieldData

        // CONSTRUCT FieldGetListener
        // ADD ActionListener to name using FieldGetListener
        FieldGetListener getListener = new FieldGetListener();
        name.addActionListener(getListener);

        // CALL getModifiers of fieldData returns mod
        int mod = fieldData.getModifiers();         // modifiers of fieldData

        // CONSTRUCT JPanel
        // SET modifierPanel to JPanel
        modifierPanel = new JPanel();               // panel contaning modifiers of fieldData
        if(Modifier.isStatic(mod))
        {
            modifierPanel.add(new JLabel(new ImageIcon(this.getClass().
             getClassLoader().getResource("edu/calpoly/cpe205/fetter/images/static.gif"))));
        }
        if(Modifier.isFinal(mod))
        {
            modifierPanel.add(new JLabel(new ImageIcon(this.getClass().
             getClassLoader().getResource("edu/calpoly/cpe205/fetter/images/final.gif"))));
        }
        if(Modifier.isTransient(mod))
        {
            modifierPanel.add(new JLabel(new ImageIcon(this.getClass().
             getClassLoader().getResource("edu/calpoly/cpe205/fetter/images/transient.gif"))));
        }
        if(Modifier.isVolatile(mod))
        {
            modifierPanel.add(new JLabel(new ImageIcon(this.getClass().
             getClassLoader().getResource("edu/calpoly/cpe205/fetter/images/volatile.gif"))));
        }

        // CALL getType of fieldData return typestring 
        // CONSTRUCT newlabel of JLabel with typestring
        type = new JLabel(fieldData.getType());     // JLabel containing the type of fieldData

        // CONSTRUCT ParameterObjectComboBox with string
        // SET selectors to NEW ParameterObjectComboBox[] with 1
        // SET selectors to ParameterObjectComboBox
        selectors = new ParameterObjectComboBox[1];
        selectors[0] = new ParameterObjectComboBox(fieldData.getType());

        // CALL getEditor of selector returns edder
        // CONSTRUCT FieldCreateNewPrimitiveListener fieldCreateNewPrimitiveListener
        FieldCreateNewPrimitiveListener fieldCreateNewPrimitiveListener = 
          new FieldCreateNewPrimitiveListener();

        // ADD actionListener on edder with fieldCreateNewPrimitiveListener
        selectors[0].getEditor().addActionListener(fieldCreateNewPrimitiveListener);


        // CONSTRUCT FieldSetListener fieldSetListener
        // SET setListener to fieldSetListener

        // CALL addActionListener on selector with FieldSetListener
        setListener = new FieldSetListener();
        selectors[0].addActionListener(setListener);
    }
  
    /**
     * Listens to field buttons in field panel, used in getting a field 
     * <p>
     */
    protected class FieldGetListener implements ActionListener
    {
    
    /**     
    * @param evt of type ActionEvent
    */
        public void actionPerformed(ActionEvent evt)
        {
        // CALL updateValue of FieldDataInterface
        // INDEX selectors with index 0 returns combo
        // CALL removeActionListener of combo with setListener
        // CALL selectLast of combo
        // CALL addActionListener on combo with setListener
               fieldData.updateValue();
               selectors[0].removeActionListener(setListener);
               selectors[0].selectLast();
               selectors[0].addActionListener(setListener); 
        }
    }
    
    /**
     * Creates a new actionListener for primitive types
     */
    protected class FieldCreateNewPrimitiveListener implements ActionListener
    {
       /**
     	* Listens for an ActionEvent from the ParameterObjectComboBox
     	* <p>
     	* Pre-conditions: none<br>
     	* Post-conditions: appends primitive to end of ParameterObjectComboBox
     	* @param evt of type ActionEvent
        */
    	public void actionPerformed(ActionEvent evt)
    	{
    	    // CALL getSelectedItem of ParameterObjectComboBox    
    	    // CALL createPrimitive of FieldDataInterface returns str
    	    // CALL setLast of ParameterObjectComboBox
            ETA.out.println("FieldRow.FieldCreateNewPrimitiveListener.actionPerformed(" + evt + ")");    
    	}
    }	


    /**
     * Sets a listener to listen to this FieldRow
     * <p>
     */
    protected class FieldSetListener implements ActionListener
    {
       /**
     	* Sets a listener on the ParameterObjectComboBox 
     	* <p>
     	* Pre-conditions: none<br>
    	* Post-conditions: none
        * @param evt of type ActionEvent
      	*/
        public void actionPerformed(ActionEvent evt)
        {
            // INDEX selectors with 0 retuns select
            // CALL getSelectedItem on select returns item 
            // CALL setValue on fieldData with item
            if(selectors[0].getSelectedIndex() != 0) {
                fieldData.setValue((ParameterDataInterface) (selectors[0].
                        getSelectedItem()));
            }
        }
    }

   
    protected  FieldDataInterface fieldData;    // a FieldRow contains a FieldDataInterface
    protected ActionListener setListener; // the action listener listening on the ParameterObjectComboBox
}