Sudoku: src/de/uapcore/sudoku/Field.java@2c0a2766461c (annotated)

src/de/uapcore/sudoku/Field.java@2c0a2766461c (annotated)

src/de/uapcore/sudoku/Field.java

Thu, 31 Jan 2013 18:44:44 +0100

author: Mike Becker <universe@uap-core.de>
date: Thu, 31 Jan 2013 18:44:44 +0100
changeset 7: 2c0a2766461c
parent 5: 8ddf4af937d7
permissions: -rw-r--r--

added solving algorithm

 /*
  * Copyright 2013 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 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 final 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) {
         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);
         super.paintChildren(graphics);
     }
     public boolean isCellEmpty(int x, int y) {
         return getCellValue(x, y) == 0;
     }
     public int getCellValue(int x, int y) {
         return cells[x][y].getValue();
     }
     public void setCellValue(int x, int y, int v) {
         cells[x][y].setValue(v);
     }
     public void clearCellValue(int x, int y) {
         setCellValue(x, y, 0);
     }
     public void setCellModified(int x, int y, boolean modified) {
         cells[x][y].setModified(modified);
     }
     public void setAllCellsModified(boolean modified) {
         for (int x = 0 ; x < 9 ; x++) {
             for (int y = 0 ; y < 9 ; y++) {
                 cells[x][y].setModified(modified);
             }
         }
     }
     public boolean isAnyCellModified() {
         for (int x = 0 ; x < 9 ; x++) {
             for (int y = 0 ; y < 9 ; y++) {
                 if (cells[x][y].isModified()) {
                     return true;
                 }
             }
         }
         return false;
     }
     public void clear() {
         for (int x = 0 ; x < 9 ; x++) {
             for (int y = 0 ; y < 9 ; y++) {
                 cells[x][y].setValue(0);
             }
         }
     }
     public int[][] getSquare(int x, int y) {
         if (x < 0 || x > 2 || y < 0 || y > 2) {
             throw new IllegalArgumentException("Invalid square coordinates");
         }
         int[][] square = new int[3][3];
         for (int u = 0 ; u < 3 ; u++) {
             for (int v = 0 ; v < 3 ; v++) {
                 square[u][v] = getCellValue(3*x+u, 3*y+v);
             }
         }
         return square;
     }
     public int[] getRow(int y) {
         if (y < 0 || y > 8) {
             throw new IllegalArgumentException("Invalid row number");
         }
         int row[] = new int[9];
         for (int x = 0 ; x < 9 ; x++) {
             row[x] = getCellValue(x, y);
         }
         return row;
     }
     public int[] getColumn(int x) {
         if (x < 0 || x > 8) {
             throw new IllegalArgumentException("Invalid column number");
         }
         int column[] = new int[9];
         for (int y = 0 ; y < 9 ; y++) {
             column[y] = getCellValue(x, y);
         }
         return column;
     }
 }

Mercurial > hg > Sudoku / annotate

src/de/uapcore/sudoku/Field.java@2c0a2766461c (annotated)

src/de/uapcore/sudoku/Field.java