1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/main/java/de/uapcore/sudoku/ActionHandler.java Sat Jul 25 14:01:28 2020 +0200
1.3 @@ -0,0 +1,203 @@
1.4 +/*
1.5 + * Copyright 2013 Mike Becker. All rights reserved.
1.6 + *
1.7 + * Redistribution and use in source and binary forms, with or without
1.8 + * modification, are permitted provided that the following conditions are met:
1.9 + *
1.10 + * 1. Redistributions of source code must retain the above copyright
1.11 + * notice, this list of conditions and the following disclaimer.
1.12 + *
1.13 + * 2. Redistributions in binary form must reproduce the above copyright
1.14 + * notice, this list of conditions and the following disclaimer in the
1.15 + * documentation and/or other materials provided with the distribution.
1.16 + *
1.17 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.18 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.19 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.20 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.21 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.22 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.23 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.24 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.25 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.26 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.27 + * POSSIBILITY OF SUCH DAMAGE.
1.28 + */
1.29 +
1.30 +package de.uapcore.sudoku;
1.31 +
1.32 +import javax.swing.*;
1.33 +import java.awt.event.ActionEvent;
1.34 +import java.awt.event.ActionListener;
1.35 +import java.io.File;
1.36 +import java.io.IOException;
1.37 +
1.38 +/**
1.39 + *
1.40 + * @author mike
1.41 + */
1.42 +public final class ActionHandler implements ActionListener {
1.43 +
1.44 + public static final String SAVE = "save";
1.45 + public static final String CHECK = "check";
1.46 + public static final String SOLVE = "solve";
1.47 +
1.48 + public static final String NEW = "new";
1.49 + public static final String OPEN = "open";
1.50 + public static final String SAVE_AS = "save as";
1.51 + public static final String QUIT = "quit";
1.52 + public static final String ABOUT = "about";
1.53 +
1.54 + private Field field;
1.55 + private Solver solver;
1.56 + private DocumentHandler doc;
1.57 +
1.58 + public ActionHandler(Field f) {
1.59 + field = f;
1.60 + solver = new Solver();
1.61 + doc = new DocumentHandler();
1.62 + }
1.63 +
1.64 + private boolean chooseSaveFilename() {
1.65 + JFileChooser fc = new JFileChooser(".");
1.66 + fc.setMultiSelectionEnabled(false);
1.67 + if (fc.showSaveDialog(field) == JFileChooser.APPROVE_OPTION) {
1.68 + File f = fc.getSelectedFile();
1.69 + if (f.exists()) {
1.70 + int result = JOptionPane.showConfirmDialog(field,
1.71 + "Bereits existierende Datei überschreiben?", "Sudoku",
1.72 + JOptionPane.YES_NO_OPTION);
1.73 + if (result == JOptionPane.YES_OPTION) {
1.74 + doc.setFilename(f.getAbsolutePath());
1.75 + return true;
1.76 + } else {
1.77 + return false;
1.78 + }
1.79 + } else {
1.80 + doc.setFilename(f.getAbsolutePath());
1.81 + return true;
1.82 + }
1.83 + } else {
1.84 + return false;
1.85 + }
1.86 + }
1.87 +
1.88 + private void open() {
1.89 + JFileChooser fc = new JFileChooser(".");
1.90 + fc.setMultiSelectionEnabled(false);
1.91 + if (fc.showOpenDialog(field) == JFileChooser.APPROVE_OPTION) {
1.92 + File f = fc.getSelectedFile();
1.93 + doc.setFilename(f.getAbsolutePath());
1.94 + try {
1.95 + doc.load(field);
1.96 + } catch (IOException e) {
1.97 + JOptionPane.showMessageDialog(field,
1.98 + "Datei konnte nicht geladen werden: "+e.getMessage(),
1.99 + "Sudoku", JOptionPane.ERROR_MESSAGE);
1.100 + }
1.101 + }
1.102 + }
1.103 +
1.104 + private boolean save(boolean rename) {
1.105 + if (!doc.isFilenameSet() || rename) {
1.106 + if (!chooseSaveFilename()) {
1.107 + return false;
1.108 + }
1.109 + }
1.110 + if (solver.check(field)) {
1.111 + field.setAllCellsModified(false);
1.112 + try {
1.113 + doc.save(field);
1.114 + } catch (IOException e) {
1.115 + JOptionPane.showMessageDialog(field,
1.116 + "Datei konnte nicht gespeichert werden: "+e.getMessage(),
1.117 + "Sudoku", JOptionPane.ERROR_MESSAGE);
1.118 + }
1.119 + return true;
1.120 + } else {
1.121 + JOptionPane.showMessageDialog(field,
1.122 + "Das Feld kann mit Fehlern nicht gespeichert werden!",
1.123 + "Sudoku", JOptionPane.ERROR_MESSAGE);
1.124 + return false;
1.125 + }
1.126 + }
1.127 +
1.128 + private void check() {
1.129 + if (solver.check(field)) {
1.130 + JOptionPane.showMessageDialog(field, "Überprüfung erfolgreich!",
1.131 + "Sudoku", JOptionPane.INFORMATION_MESSAGE);
1.132 + } else {
1.133 + JOptionPane.showMessageDialog(field, "Das Feld enthält Fehler!",
1.134 + "Sudoku", JOptionPane.WARNING_MESSAGE);
1.135 + }
1.136 + }
1.137 +
1.138 + private void solve() {
1.139 + if (!solver.check(field) || !solver.solve(field)) {
1.140 + JOptionPane.showMessageDialog(field, "Das Feld ist nicht lösbar!",
1.141 + "Sudoku", JOptionPane.WARNING_MESSAGE);
1.142 + }
1.143 + }
1.144 +
1.145 + private boolean saveUnsaved() {
1.146 + boolean proceed = false;
1.147 + if (field.isAnyCellModified()) {
1.148 + int result = JOptionPane.showConfirmDialog(field,
1.149 + "Das Feld ist ungespeichert - jetzt speichern?",
1.150 + "Sudoku", JOptionPane.YES_NO_CANCEL_OPTION);
1.151 + if (result == JOptionPane.YES_OPTION) {
1.152 + if (save(false)) {
1.153 + proceed = true;
1.154 + }
1.155 + } else if (result == JOptionPane.NO_OPTION) {
1.156 + proceed = true;
1.157 + }
1.158 + } else {
1.159 + proceed = true;
1.160 + }
1.161 +
1.162 + return proceed;
1.163 + }
1.164 +
1.165 + @Override
1.166 + public void actionPerformed(ActionEvent e) {
1.167 + switch (e.getActionCommand()) {
1.168 + case NEW:
1.169 + if (saveUnsaved()) {
1.170 + doc.clearFilename();
1.171 + field.clear();
1.172 + }
1.173 + break;
1.174 + case OPEN:
1.175 + open();
1.176 + break;
1.177 + case SAVE:
1.178 + save(false);
1.179 + break;
1.180 + case SAVE_AS:
1.181 + save(true);
1.182 + break;
1.183 + case CHECK:
1.184 + check();
1.185 + break;
1.186 + case SOLVE:
1.187 + solve();
1.188 + break;
1.189 + case QUIT:
1.190 + if (saveUnsaved()) {
1.191 + System.exit(0);
1.192 + }
1.193 + break;
1.194 + case ABOUT:
1.195 + JOptionPane.showMessageDialog(field,
1.196 + "Sudoku - Copyright (c) 2013 Mike Becker\nwww.uap-core.de"+
1.197 + "\nPublished under the BSD License",
1.198 + "Sudoku", JOptionPane.INFORMATION_MESSAGE);
1.199 + break;
1.200 + default:
1.201 + throw new UnsupportedOperationException(
1.202 + "unknown action: "+e.getActionCommand());
1.203 + }
1.204 + }
1.205 +
1.206 +}
