--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/de/uapcore/sudoku/ActionHandler.java Sat Jul 25 14:01:28 2020 +0200
@@ -0,0 +1,203 @@
+/*
+ * 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 javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.File;
+import java.io.IOException;
+
+/**
+ *
+ * @author mike
+ */
+public final class ActionHandler implements ActionListener {
+
+ public static final String SAVE = "save";
+ public static final String CHECK = "check";
+ public static final String SOLVE = "solve";
+
+ public static final String NEW = "new";
+ public static final String OPEN = "open";
+ public static final String SAVE_AS = "save as";
+ public static final String QUIT = "quit";
+ public static final String ABOUT = "about";
+
+ private Field field;
+ private Solver solver;
+ private DocumentHandler doc;
+
+ public ActionHandler(Field f) {
+ field = f;
+ solver = new Solver();
+ doc = new DocumentHandler();
+ }
+
+ private boolean chooseSaveFilename() {
+ JFileChooser fc = new JFileChooser(".");
+ fc.setMultiSelectionEnabled(false);
+ if (fc.showSaveDialog(field) == JFileChooser.APPROVE_OPTION) {
+ File f = fc.getSelectedFile();
+ if (f.exists()) {
+ int result = JOptionPane.showConfirmDialog(field,
+ "Bereits existierende Datei überschreiben?", "Sudoku",
+ JOptionPane.YES_NO_OPTION);
+ if (result == JOptionPane.YES_OPTION) {
+ doc.setFilename(f.getAbsolutePath());
+ return true;
+ } else {
+ return false;
+ }
+ } else {
+ doc.setFilename(f.getAbsolutePath());
+ return true;
+ }
+ } else {
+ return false;
+ }
+ }
+
+ private void open() {
+ JFileChooser fc = new JFileChooser(".");
+ fc.setMultiSelectionEnabled(false);
+ if (fc.showOpenDialog(field) == JFileChooser.APPROVE_OPTION) {
+ File f = fc.getSelectedFile();
+ doc.setFilename(f.getAbsolutePath());
+ try {
+ doc.load(field);
+ } catch (IOException e) {
+ JOptionPane.showMessageDialog(field,
+ "Datei konnte nicht geladen werden: "+e.getMessage(),
+ "Sudoku", JOptionPane.ERROR_MESSAGE);
+ }
+ }
+ }
+
+ private boolean save(boolean rename) {
+ if (!doc.isFilenameSet() || rename) {
+ if (!chooseSaveFilename()) {
+ return false;
+ }
+ }
+ if (solver.check(field)) {
+ field.setAllCellsModified(false);
+ try {
+ doc.save(field);
+ } catch (IOException e) {
+ JOptionPane.showMessageDialog(field,
+ "Datei konnte nicht gespeichert werden: "+e.getMessage(),
+ "Sudoku", JOptionPane.ERROR_MESSAGE);
+ }
+ return true;
+ } else {
+ JOptionPane.showMessageDialog(field,
+ "Das Feld kann mit Fehlern nicht gespeichert werden!",
+ "Sudoku", JOptionPane.ERROR_MESSAGE);
+ return false;
+ }
+ }
+
+ private void check() {
+ if (solver.check(field)) {
+ JOptionPane.showMessageDialog(field, "Überprüfung erfolgreich!",
+ "Sudoku", JOptionPane.INFORMATION_MESSAGE);
+ } else {
+ JOptionPane.showMessageDialog(field, "Das Feld enthält Fehler!",
+ "Sudoku", JOptionPane.WARNING_MESSAGE);
+ }
+ }
+
+ private void solve() {
+ if (!solver.check(field) || !solver.solve(field)) {
+ JOptionPane.showMessageDialog(field, "Das Feld ist nicht lösbar!",
+ "Sudoku", JOptionPane.WARNING_MESSAGE);
+ }
+ }
+
+ private boolean saveUnsaved() {
+ boolean proceed = false;
+ if (field.isAnyCellModified()) {
+ int result = JOptionPane.showConfirmDialog(field,
+ "Das Feld ist ungespeichert - jetzt speichern?",
+ "Sudoku", JOptionPane.YES_NO_CANCEL_OPTION);
+ if (result == JOptionPane.YES_OPTION) {
+ if (save(false)) {
+ proceed = true;
+ }
+ } else if (result == JOptionPane.NO_OPTION) {
+ proceed = true;
+ }
+ } else {
+ proceed = true;
+ }
+
+ return proceed;
+ }
+
+ @Override
+ public void actionPerformed(ActionEvent e) {
+ switch (e.getActionCommand()) {
+ case NEW:
+ if (saveUnsaved()) {
+ doc.clearFilename();
+ field.clear();
+ }
+ break;
+ case OPEN:
+ open();
+ break;
+ case SAVE:
+ save(false);
+ break;
+ case SAVE_AS:
+ save(true);
+ break;
+ case CHECK:
+ check();
+ break;
+ case SOLVE:
+ solve();
+ break;
+ case QUIT:
+ if (saveUnsaved()) {
+ System.exit(0);
+ }
+ break;
+ case ABOUT:
+ JOptionPane.showMessageDialog(field,
+ "Sudoku - Copyright (c) 2013 Mike Becker\nwww.uap-core.de"+
+ "\nPublished under the BSD License",
+ "Sudoku", JOptionPane.INFORMATION_MESSAGE);
+ break;
+ default:
+ throw new UnsupportedOperationException(
+ "unknown action: "+e.getActionCommand());
+ }
+ }
+
+}