Posted by: CIGG March 27, 2007
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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.Object.*;
public class ProblemB {
static int Counter ;
static int windowWidth;
static int windowHeight;
// FOUR WINDOW CORNERS
static int x1;
static int y1;
static int x2;
static int y2;
static int x3;
static int y3;
static int x4;
static int y4;
static boolean flag;
static int T1;
// Diagonal Point
static int diagonalPointX;
static int diagonalPointY;
static int triangle1Y1;
static int triangle1Y2;
static class MyFrame extends JFrame {
public void paint (Graphics g) {
super.paint(g);
System.out.println("printing " + Counter);
if (flag){
g.setColor(Color.BLUE);
}
else {
g.setColor(Color.BLACK);
}
g.drawString( new Integer (Counter).toString(),50,50);
g.drawLine( 5, 30, windowWidth-5,windowHeight-2 );
g.drawLine(5,windowHeight-2, windowWidth-5, 30 );
}
}
static MyFrame frame;
public static void main (String[] args) {
windowWidth = 200; // Default window Width
windowHeight = 200; // Default Window Height
frame = new MyFrame ();
Dimension Size = new Dimension (windowWidth,windowHeight);
//Vec2d[] Vertex1 = new Vec2d[100];
class MyAdapter extends MouseAdapter {
public void mouseClicked (MouseEvent e) {
Counter++;
if (Counter%2==0) {
flag = true;
}
else {
flag = false;
}
frame.repaint();
x1 = 5;
y1 = 30;
x2 = windowWidth-5 ;
y2 = 30;
x3 = windowWidth;
y3 = windowHeight-2;
x4 = 0;
y4 = windowHeight-2;
// Diagonal Point
diagonalPointX = (x1+x3)/2 ;
diagonalPointY = (y1+y3)/2;
// System.out.println(diagonalPointX +","+diagonalPointY);
Point x_y = new Point(e.getX(),e.getY());
// System.out.println(" point " +x_y);
// swcond point on diagonal 1
triangle1Y1 = (((y3-y1)/(x3-x1))*(x2-x1))+y1;
triangle1Y2 = (((y4-y2)/(x4-x2))*(x1 -x2))+y2;
if(triangle1Y1y2){
if(e.getY()>y2){
T1++;
}
}
if(triangle1Y2y1){
if(e.getY()>y1){
T1++;
}
}
System.out.println(triangle1Y1+" "+triangle1Y2);
if(T1==2){
System.out.println("The point is inside triangle 1.");
}
T1=0;
}
}
class MyWindowAdapter extends WindowAdapter {
public void windowClosing (WindowEvent e) {
System.exit(0);
}
}
class MyComponentAdapter extends ComponentAdapter {
public void componentResized(ComponentEvent e) {
windowHeight = frame.getSize().height;
windowWidth = frame.getSize().width;
frame.repaint();
}
}
MyAdapter MyAdapterObject = new MyAdapter();
MyWindowAdapter MyWindowAdapterObject = new MyWindowAdapter();
MyComponentAdapter MyComponentAdapterObject = new MyComponentAdapter();
Counter = 0;
T1=0;
x1 = 5;
y1 = 30;
x2 = windowWidth-5 ;
y2 = 30;
x3 = windowWidth;
y3 = windowHeight-2;
x4 = 0;
y4 = windowHeight-2;
triangle1Y1 = 0;
triangle1Y2 = 0;
flag =false;
// Diagonal Point
diagonalPointX = (x1+x3)/2 ;
diagonalPointY = (y1+y3)/2;
frame.addMouseListener(MyAdapterObject);
frame.addWindowListener (MyWindowAdapterObject);
frame.addComponentListener (MyComponentAdapterObject);
frame.setSize(Size);
frame.setVisible(true);
}
}
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Edit the code to what you want from it.