// The copyright of this program is reserved by 哲猫.
/* 
Complex クラスの使い方
*/ 

/* <applet code="Ex061019a.class" width=250 height=220> </applet> */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Ex061019a extends JApplet implements ActionListener{
	JLabel lb1,lb2,lb3,lb4,lb5,lb6,lb7,lb8,lb9,lb10,lb11;
	JTextField tf1,tf2,tf3,tf4,tf5,tf6;
	JButton bt1,bt2,bt3,bt4,bt5;
	Complex z1,z2,z3,z4,z5,z6,z7;
	public void init(){
		Container cp = getContentPane();
		JPanel pl = new JPanel();
    pl.setLayout(null);
    
    z1 = new Complex();
    z2 = new Complex();
    z3 = new Complex();
		
    lb1 = new JLabel("z1="); 
    lb1.setBounds(10,0,20,20);
    pl.add(lb1);
    tf1 = new JTextField(10);
    tf1.setBounds(30,0,50,20);
    tf1.setText("0.0");
    pl.add(tf1);
    lb2 = new JLabel("+"); 
    lb2.setBounds(80,0,10,20);
    pl.add(lb2);
    tf2 = new JTextField(10);
    tf2.setBounds(90,0,50,20);
    tf2.setText("0.0");
    pl.add(tf2);
    lb3 = new JLabel("i"); 
    lb3.setBounds(145,0,10,20);
    pl.add(lb3);
    lb4 = new JLabel("z2="); 
    lb4.setBounds(10,30,20,20);
    pl.add(lb4);
    tf3 = new JTextField(10);
    tf3.setBounds(30,30,50,20);
    tf3.setText("0.0");
    pl.add(tf3);
    lb5 = new JLabel("+"); 
    lb5.setBounds(80,30,10,20);
    pl.add(lb5);
    tf4 = new JTextField(10);
    tf4.setBounds(90,30,50,20);
    tf4.setText("0.0");
    pl.add(tf4);
    lb6 = new JLabel("i"); 
    lb6.setBounds(145,30,10,20);
    pl.add(lb6);
    
    bt1 = new JButton("z1＋z2");
		bt1.setBounds(10,60,80,20);
		bt1.addActionListener(this);
    pl.add(bt1);
    lb7 = new JLabel("= "); 
    lb7.setBounds(100,60,150,20);
    pl.add(lb7);
    
    bt2 = new JButton("z1−z2");
		bt2.setBounds(10,90,80,20);
		bt2.addActionListener(this);
    pl.add(bt2);
    lb8 = new JLabel("= "); 
    lb8.setBounds(100,90,150,20);
    pl.add(lb8);
    
    bt3 = new JButton("z1×z2");
		bt3.setBounds(10,120,80,20);
		bt3.addActionListener(this);
    pl.add(bt3);
    lb9 = new JLabel("= "); 
    lb9.setBounds(100,120,150,20);
    pl.add(lb9);

    bt4 = new JButton("z1÷z2");
		bt4.setBounds(10,150,80,20);
		bt4.addActionListener(this);
    pl.add(bt4);
    lb10 = new JLabel("= "); 
    lb10.setBounds(100,150,1500,20);
    pl.add(lb10);
        
    bt5 = new JButton("z1^z2");
		bt5.setBounds(10,180,80,20);
		bt5.addActionListener(this);
    pl.add(bt5);
    lb11 = new JLabel("= "); 
    lb11.setBounds(100,180,150,20);
    pl.add(lb11);

		cp.add(pl);
	}
	
	public void actionPerformed(ActionEvent event){
		String s=new String("0.0");
		double re,im;
		
		s=tf1.getText();
		re=Double.valueOf(s).doubleValue();
		s=tf2.getText();
		im=Double.valueOf(s).doubleValue();
		z1.set(re,im);
		
		s=tf3.getText();
		re=Double.valueOf(s).doubleValue();
		s=tf4.getText();
		im=Double.valueOf(s).doubleValue();
		z2.set(re,im);
		
		if(event.getSource()==bt1){
			z3=z1.add(z2);
			lb7.setText(display(z3));
		}
		if(event.getSource()==bt2){
			z3=z1.sub(z2);
			lb8.setText(display(z3));
		}
		if(event.getSource()==bt3){
			z3=z1.mul(z2);
			lb9.setText(display(z3));
		}
		if(event.getSource()==bt4){
			z3=z1.div(z2);
			lb10.setText(display(z3));
		}
		if(event.getSource()==bt5){
			z3=z1.pow(z2);
			lb11.setText(display(z3));
		}
	}
	
	public String display(Complex z){
		String str = new String();
		if(z.image()>=0)
			str="= "+Math.floor(z.real()*10000+0.5)/10000+" + "+Math.floor(z.image()*10000+.5)/10000+" i";
		else
			str="= "+Math.floor(z.real()*10000+0.5)/10000 + Math.floor(z.image()*10000+.5)/10000+" i";
		return(str);
	}  
}