Mercurial > hg > Sudoku / file revision

 package de.uapcore.sudoku;

 import java.awt.Color;

 import java.awt.Graphics;

 import java.awt.Graphics2D;

 import java.awt.GridBagConstraints;

 import java.awt.GridBagLayout;

 import java.awt.Insets;

 import java.awt.image.BufferedImage;

 import javax.swing.JPanel;

 /**

  *

  * @author mike

  */

 public class Field extends JPanel {

     private SudokuTextField[][] cells;

     public Field() {

         setBackground(Color.WHITE);

         setLayout(new GridBagLayout());

         GridBagConstraints c = new GridBagConstraints();

         c.insets = new Insets(5, 5, 5, 5);

         cells = new SudokuTextField[9][9];

         for (int x = 0 ; x < 9 ; x++) {

             for (int y = 0 ; y < 9 ; y++) {

                 cells[x][y] = new SudokuTextField();

                 c.gridx = x;

                 c.gridy = y;

                 add(cells[x][y], c);

             }

         }

     }

     @Override

     public void paint(Graphics graphics) {

         super.paint(graphics);

         final int w = getWidth();

         final int h = getHeight();

         final int cw = w / 9;

         final int ch = h / 9;

         BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);

         Graphics2D g = img.createGraphics();

         g.setBackground(Color.WHITE);

         g.clearRect(0, 0, w, h);

         g.setColor(Color.BLACK);

         g.drawRect(1, 1, w-2, h-2);

         g.drawRect(2, 2, w-4, h-4);

         for (int x = cw ; x < w ; x += cw) {

             for (int y = ch ; y < h ; y += ch) {

                 g.drawLine(x, 2, x, h-2);

                 g.drawLine(2, y, w-2, y);

                 if ((x / cw) % 3 == 0) {

                     g.drawLine(x+1, 2, x+1, h-2);

                 }

                 if ((y / ch) % 3 == 0) {

                     g.drawLine(2, y+1, w-2, y+1);

                 }

             }

         }

         graphics.drawImage(img, 0, 0, this);

     }

 }