caca

package program;

import java.awt.Graphics2D;

import java.awt.event.ActionEvent;

import javax.swing.*;

import EditTextRead.Point2D;

public class Panel extends JPanel {

JTextField p1x;

JTextField p1y;

JTextField p2x;

JTextField p2y;

JTextField p3x;

JTextField p3y;

JTextField pole;

JTextField obwod;

JButton start;

JButton cancel;

JButton stop;

String p1xs,p1ys,p2xs,p2ys,p3xs,p3ys;

double x1,y1,x2,y2,x3,y3,area, l;

int x1i,y1i,x2i,y2i,x3i,y3i;

int draw;

double a,b,c,s,l;

public Panel()

{ 

setLayout(null);

p1x=new JTextField(20);

p1y=new JTextField(20);

p2x=new JTextField(20);

p2y=new JTextField(20);

p3x=new JTextField(20);

p3y=new JTextField(20);

obwod=new JTextField(20);

pole=new JTextField(20);

start=new JButton("START");

cancel=new JButton("CANCEL");

stop=new JButton("STOP");

p1x.setBounds(800,100,80,20);

p1y.setBounds(900,100,80,20);

p2x.setBounds(800,150,80,20);

p2y.setBounds(900,150,80,20);

p3x.setBounds(800,200,80,20);

p3y.setBounds(900,200,80,20);

pole.setBounds(800,400,80,20);

obwod.setBounds(900,400,80,20);

start.setBounds(700,600,80,20);

cancel.setBounds(800,600,80,20);

stop.setBounds(900,600,80,20);

add(p1x);

add(p1y);

add(p2x);

add(p2y);

add(p3x);

add(p3y);

add(pole);

add(obwod);

add(start);

add(cancel);

add(stop);

ActionListener listStart=new Sluchacz();

start.addActionListener(listStart);

ActionListener listCancel=new Sluchacz();

cancel.addActionListener(listCancel);

ActionListener listStop= new Sluchacz();

stop.addActionListener(listStop);

}

class Sluchacz implements ActionListener

{

public void actionPerformed(ActionEvent e) 

{

if (e.getSource()==start)

{

p1xs=p1x.getText();

p1ys=p1y.getText();

p2xs=p2x.getText();

p2ys=p2y.getText();

p3xs=p3x.getText();

p3ys=p3y.getText();

x1=Double.parseDouble(p1xs);

  y1=Double.parseDouble(p1ys);

  x2=Double.parseDouble(p2xs);

  y2=Double.parseDouble(p2ys);

  x3=Double.parseDouble(p3xs);

  y3=Double.parseDouble(p3ys);

  draw=1;

  repaint();

}

if() {

}

public void paintComponent(Graphics g){

super.paintComponent(g);

Graphics2D g2=(Graphics2D)g;

BasicStroke dim=new BasicStroke(5f);

g2.setStroke(dim);

g2.setColor(Color.RED);

if(draw==1)

{

x1i=(int)x1; y1i=(int)y1; x2i=(int)x2;

y2i=(int)y2; x3i=(int)x3; y3i=(int)y3;

g2.drawLine(x1i, y1i, x2i, y2i);

g2.drawLine(x2i, y2i, x3i, y3i);

g2.drawLine(x1i, y1i, x3i, y3i);

Point2D p1=new Point2D(x1,y1);

Point2D p2=new Point2D(x2,y2);

Point2D p3=new Point2D(x3,y3);

a=p1.dist(p1, p2);

b=p1.dist(p2, p3);

c=p1.dist(p3, p1);

s=p1.pole(a,b,c);

g2.drawString("Pole= "+ s,700,700);

g2.drawString("a= "+a+" b= "+b+" c= "+c,700,750);

l=a+b+c;

obwod.setText("obw= "+l);

draw=0;

}

}

}

}