| 1 | /* |
| 2 | * Copyright (c) 2005 The PseudoQ Project. |
| 3 | * |
| 4 | * This file is part of PseudoQ. |
| 5 | * |
| 6 | * PseudoQ is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU Lesser General Public License as published by |
| 8 | * the Free Software Foundation; either version 2.1 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * PseudoQ is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public License |
| 17 | * along with PseudoQ; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | package net.sourceforge.pseudoq.model; |
| 22 | |
| 23 | import java.util.*; |
| 24 | |
| 25 | /** |
| 26 | * The Grid specifies which coordinates are valid cells, and stores a value for |
| 27 | * each. |
| 28 | * @author <a href="http://sourceforge.net/users/stevensa">Andrew Stevens</a> |
| 29 | */ |
| 30 | public class Grid extends HashMap<Coordinate, Integer> { |
| 31 | |
| 32 | /** |
| 33 | * Holds value of property size. |
| 34 | */ |
| 35 | private int size; |
| 36 | |
| 37 | /** |
| 38 | * Convert a given (integer) value to a String form (single character) |
| 39 | * suitable for display. |
| 40 | */ |
| 41 | public static String digit(int i) { |
| 42 | String ret = "?"; |
| 43 | |
| 44 | if (i == 0) { |
| 45 | ret = "-"; |
| 46 | } else if (i > 0) { |
| 47 | ret = String.valueOf(Character.forDigit(i, 36)).toUpperCase(); |
| 48 | } |
| 49 | |
| 50 | return ret; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Creates a new instance of Grid. |
| 55 | * @param size |
| 56 | */ |
| 57 | public Grid(int size) { |
| 58 | this.size = size; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Getter for property size. |
| 63 | * @return Value of property size. |
| 64 | */ |
| 65 | public int getSize() { |
| 66 | return this.size; |
| 67 | } |
| 68 | |
| 69 | public Integer put(Coordinate key, Integer value) { |
| 70 | if (key == null) { |
| 71 | throw new IllegalArgumentException("Null coordinates not allowed in Grid"); |
| 72 | } |
| 73 | if (key.getColumn() >= size || key.getRow() >= size) { |
| 74 | throw new IllegalArgumentException("Coordinate " + key.toString() + |
| 75 | " outside of Grid bounds"); |
| 76 | } |
| 77 | return super.put(key, value); |
| 78 | } |
| 79 | |
| 80 | public String toString() { |
| 81 | StringBuffer retValue = new StringBuffer(); |
| 82 | |
| 83 | for (int row = 0; row < this.size; row++) { |
| 84 | for (int column = 0 ; column < this.size; column++) { |
| 85 | Integer value = this.get(new Coordinate(row, column)); |
| 86 | retValue.append(value == null ? " " : value.toString()); |
| 87 | } |
| 88 | retValue.append('\n'); |
| 89 | } |
| 90 | |
| 91 | return retValue.toString(); |
| 92 | } |
| 93 | |
| 94 | } |