/**
 * 
 */
package image.create;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.text.*;
import javax.swing.*;
import javax.swing.event.*;

import gui.elements.RGBControl;
import image.create.CreateImage;

/**
 * @author John
 *
 */
public class Hermann extends CreateImage {
	static final long serialVersionUID = 0;
	
	// name of illusion
	private final static String NAME = "Hermann Grid";

	// the basic sinewave grating parameters
	private double rSqBal = 1.0;
	private double gSqBal = 1.0;
	private double bSqBal = 1.0;
	private double rLnBal = 1.0;
	private double gLnBal = 1.0;
	private double bLnBal = 1.0;
	DecimalFormat balFmt = new DecimalFormat("0.00");
	
	private double squareLum = 0.0; // luminance of the squares
	private double lineLum = 1.0;   // luminance of the lines
	private double squareSize = 0.10;  // proportion of width
	private double lineWidth = 0.02;// proporition of width
	
	// the image to be returned
	private Image hermann;
	
	// image manipulation objects
	// square
	private JPanel squarePanel = new JPanel();
	private JLabel squareLabel = new JLabel("Square Size");
	private JSlider squareSlider = new JSlider(0,100,(int)(100.0*squareSize));
	private JLabel squareValLabel = new JLabel(" = "+
			balFmt.format(squareSize));
	// Size of lines cycle
	private JPanel linePanel = new JPanel();
	private JLabel lineLabel =  new JLabel("Line Width");
	private JSlider lineSlider = new JSlider(1,20,
			(int)(lineWidth*100.0));
	private JLabel lineValLabel = new JLabel(" = "+
			balFmt.format(lineWidth));
	// foreground colors
	private RGBControl fore = new RGBControl();
	private JLabel foreLabel = new JLabel("    Square");
	// background colors
	private RGBControl back = new RGBControl();
	private JLabel backLabel = new JLabel("    Line");
	// Rel Luminance of Square
	private JPanel sqLumPanel = new JPanel();
	private JLabel sqLumLabel = new JLabel("  Rel. Lum.");
	private JSlider sqLumSlider = new JSlider(0,255,0);
	private JLabel sqLumValLabel = new JLabel(" = 0.00");

	// Rel Luminance of Line
	private JPanel lnLumPanel = new JPanel();
	private JLabel lnLumLabel = new JLabel("  Rel. Lum.");
	private JSlider lnLumSlider = new JSlider(0,255,255);
	private JLabel lnLumValLabel = new JLabel(" = 1.00");
	
	// the control panel to be returned
	private JPanel control = new JPanel();
	
	// empty constructor
	public Hermann(){
		setSize(width,height);
		setupControl();
	}
	
	private void setupControl(){
		control.setLayout(new GridLayout(2,1));
		JPanel top = new JPanel(new BorderLayout());
		JPanel bot = new JPanel(new BorderLayout());
		// the square size control
		squarePanel.add(squareLabel);
		squarePanel.add(squareSlider);
		squarePanel.add(squareValLabel);
		top.add(squarePanel,BorderLayout.NORTH);
		// add the listener
		squareSlider.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				squareSize = (double)squareSlider.getValue()
				              /100.0;
				squareValLabel.setText(" = "+
						balFmt.format(squareSize));
				repaint();
			}
		});

		// the Square Luminance control
		sqLumPanel.add(sqLumLabel);
		sqLumPanel.add(sqLumSlider);
		sqLumPanel.add(sqLumValLabel);
		top.add(sqLumPanel,BorderLayout.CENTER);
		// add the listener
		sqLumSlider.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				squareLum = (double)sqLumSlider.getValue()
				                /255.0;
				sqLumValLabel.setText(" = "+
						balFmt.format(squareLum));
				repaint();
			}
		});
		fore.setShowLabels(true);
		JPanel forePanel = new JPanel();
		forePanel.add(foreLabel);
		forePanel.add(fore);
		top.add(forePanel,BorderLayout.SOUTH);
		// add the listeners
		fore.red.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				rSqBal = fore.getRedDbl();
				repaint();
			}
		});
		fore.green.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				gSqBal = fore.getGreenDbl();
				repaint();
			}
		});
		fore.blue.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				bSqBal = fore.getBlueDbl();
				repaint();
			}
		});		

		// line width control
		linePanel.setAlignmentX(LEFT_ALIGNMENT);
		linePanel.add(lineLabel);
		linePanel.add(lineSlider);
		linePanel.add(lineValLabel);
		bot.add(linePanel,BorderLayout.NORTH);
		// add the listener
		lineSlider.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				lineWidth = (double)lineSlider.getValue()
				                /100.0;
				lineValLabel.setText(" = "+
						balFmt.format(lineWidth));
				repaint();
			}
		});

		// the Line Luminance control
		lnLumPanel.add(lnLumLabel);
		lnLumPanel.add(lnLumSlider);
		lnLumPanel.add(lnLumValLabel);
		bot.add(lnLumPanel,BorderLayout.CENTER);
		// add the listener
		lnLumSlider.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				lineLum = (double)lnLumSlider.getValue()
				                /255.0;
				lnLumValLabel.setText(" = "+
						balFmt.format(lineLum));
				repaint();
			}
		});
		back.setShowLabels(true);
		JPanel backPanel = new JPanel();
		backPanel.add(backLabel);
		backPanel.add(back);
		bot.add(backPanel,BorderLayout.SOUTH);
		// add the listeners
		back.red.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				rLnBal = back.getRedDbl();
				repaint();
			}
		});
		back.green.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				gLnBal = back.getGreenDbl();
				repaint();
			}
		});
		back.blue.addChangeListener(new ChangeListener(){
			public void stateChanged(ChangeEvent e){
				bLnBal = back.getBlueDbl();
				repaint();
			}
		});

		control.add(top);
		control.add(bot);
	}
	
	public void paint(Graphics g){
		Graphics2D g2d = (Graphics2D)g;
		
		//get the images
		hermann = new BufferedImage(width,height,
				BufferedImage.TYPE_INT_RGB);
		
		// get the images graphics handler
		Graphics2D gP = (Graphics2D)hermann.getGraphics();
		gP.setPaint(new Color((float)(lineLum*rLnBal),
        		(float)(lineLum*gLnBal),
        		(float)(lineLum*bLnBal)));
		gP.fill(new Rectangle(0,0,width,height));
        double squarePxl = (double)width*squareSize; 
        double linePxl = (double)width*lineWidth;
        gP.setPaint(new Color((float)(squareLum*rSqBal),
        		(float)(squareLum*gSqBal),
        		(float)(squareLum*bSqBal)));
        for (int i = 0; i < width; i += squarePxl+linePxl){
        	for (int j = 0; j < height; j += squarePxl+linePxl){
        		gP.fill(new Rectangle2D.Double(i,j,squarePxl,
        				squarePxl));
        	}
        }

        // put the image onto the panel
		g2d.drawImage(hermann, 0,0,this);
	}
	
	/* (non-Javadoc)
	 * @see image.create.CreateImage#getImage()
	 */
	@Override
	public Image getImage() {
		return hermann;
	}
	public String getName(){
		return NAME;
	}
	public JPanel getControlPanel(){
		return control;
	}
	public int getHeight(){ return height; }
	public int getWidht() { return width; }

}