gridb.java

This is the simple java random style generator. user can change the style, fill the style color.

//NG ENG SHEN
//A120358

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

public class GridB extends JApplet {


private static final int SAIZ = 20;
private static final int NUMOFRECT = 10;

public void paint(Graphics g) {

Graphics2D g2d = (Graphics2D) g;
int x = (getSize().width-SAIZ*NUMOFRECT)/2;
int y = (getSize().height-SAIZ*NUMOFRECT)/2;
Rectangle2D.Double rect = new Rectangle2D.Double();
GeneralPath triangle = new GeneralPath();
int countRow=1;
int countCol=1;

for (int i=0; i < NUMOFRECT; i++) 
{
y=(getSize().height-SAIZ*NUMOFRECT)/2;

  for (int j=0; j < NUMOFRECT; j++) 
  {
      rect.setRect(x, y, SAIZ, SAIZ);
      g2d.draw(rect);
      
      if(countCol%2==0)
      {
    	  if(countRow%2==0)
    	  triangle = setTriangle(x,y,1);
      
    	  else
    	  triangle = setTriangle(x,y,3); 
      }
      
      else
      {
    	  if(countRow%2==0)
          triangle = setTriangle(x,y,2);
          
          else
          triangle = setTriangle(x,y,4);
      }
      
      g2d.draw(triangle);
      g2d.fill(triangle);
      y += SAIZ;
      countRow++;
    }
      
x += SAIZ;
countCol++;
}
}


private GeneralPath setTriangle(int x, int y, int type){
	
	GeneralPath triangle = new GeneralPath();
	
    int x1=0,x2=0,x3=0;
    int y1=0,y2=0,y3=0;
	switch(type)
	{
	case 1:
	{
		x1 = x; 		y1 = y;
		x2 = x; 		y2 = y+SAIZ;
		x3 = x+SAIZ; 	y3 = y+SAIZ; break;
	}
	
	case 2:
	{
		x1 = x+SAIZ; 	y1 = y;
		x2 = x; 		y2 = y;
		x3 = x; 	    y3 = y+SAIZ; break;
	}
	
	case 3:
	{
		x1 = x; 		y1 = y;
		x2 = x+SAIZ; 	y2 = y;
		x3 = x+SAIZ; 	y3 = y+SAIZ; break;
	}
		
	case 4:
	{
		x1 = x; 		y1 = y+SAIZ;
		x2 = x+SAIZ; 	y2 = y+SAIZ;
		x3 = x+SAIZ; 	y3 = y;     break;
	}
	}
		
	triangle.moveTo(x1,y1);
	triangle.lineTo(x2, y2);
    triangle.lineTo(x3, y3);
    triangle.closePath();
	
    return triangle;
}
}