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1 | /* |
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2 | * Copyright 2013 Mike Becker. All rights reserved. |
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3 | * |
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4 | * Redistribution and use in source and binary forms, with or without |
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5 | * modification, are permitted provided that the following conditions are met: |
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6 | * |
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7 | * 1. Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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15 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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18 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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19 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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20 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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21 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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22 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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23 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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24 | * POSSIBILITY OF SUCH DAMAGE. |
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25 | */ |
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26 | |
2 | 27 | package de.uapcore.sudoku; |
28 | ||
9 | 29 | import javax.swing.*; |
2 | 30 | import java.awt.event.ActionEvent; |
31 | import java.awt.event.ActionListener; | |
6 | 32 | import java.io.File; |
33 | import java.io.IOException; | |
2 | 34 | |
35 | /** | |
36 | * | |
37 | * @author mike | |
38 | */ | |
39 | public final class ActionHandler implements ActionListener { | |
40 | ||
41 | public static final String SAVE = "save"; | |
42 | public static final String CHECK = "check"; | |
43 | public static final String SOLVE = "solve"; | |
44 | ||
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45 | public static final String NEW = "new"; |
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46 | public static final String OPEN = "open"; |
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47 | public static final String SAVE_AS = "save as"; |
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48 | public static final String QUIT = "quit"; |
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49 | public static final String ABOUT = "about"; |
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50 | |
2 | 51 | private Field field; |
52 | private Solver solver; | |
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53 | private DocumentHandler doc; |
2 | 54 | |
55 | public ActionHandler(Field f) { | |
56 | field = f; | |
57 | solver = new Solver(); | |
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58 | doc = new DocumentHandler(); |
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59 | } |
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60 | |
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61 | private boolean chooseSaveFilename() { |
6 | 62 | JFileChooser fc = new JFileChooser("."); |
63 | fc.setMultiSelectionEnabled(false); | |
64 | if (fc.showSaveDialog(field) == JFileChooser.APPROVE_OPTION) { | |
65 | File f = fc.getSelectedFile(); | |
66 | if (f.exists()) { | |
67 | int result = JOptionPane.showConfirmDialog(field, | |
68 | "Bereits existierende Datei überschreiben?", "Sudoku", | |
69 | JOptionPane.YES_NO_OPTION); | |
70 | if (result == JOptionPane.YES_OPTION) { | |
71 | doc.setFilename(f.getAbsolutePath()); | |
72 | return true; | |
73 | } else { | |
74 | return false; | |
75 | } | |
76 | } else { | |
77 | doc.setFilename(f.getAbsolutePath()); | |
78 | return true; | |
79 | } | |
80 | } else { | |
81 | return false; | |
82 | } | |
2 | 83 | } |
84 | ||
6 | 85 | private void open() { |
86 | JFileChooser fc = new JFileChooser("."); | |
87 | fc.setMultiSelectionEnabled(false); | |
88 | if (fc.showOpenDialog(field) == JFileChooser.APPROVE_OPTION) { | |
89 | File f = fc.getSelectedFile(); | |
90 | doc.setFilename(f.getAbsolutePath()); | |
91 | try { | |
92 | doc.load(field); | |
93 | } catch (IOException e) { | |
94 | JOptionPane.showMessageDialog(field, | |
95 | "Datei konnte nicht geladen werden: "+e.getMessage(), | |
96 | "Sudoku", JOptionPane.ERROR_MESSAGE); | |
97 | } | |
98 | } | |
99 | } | |
100 | ||
101 | private boolean save(boolean rename) { | |
102 | if (!doc.isFilenameSet() || rename) { | |
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103 | if (!chooseSaveFilename()) { |
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104 | return false; |
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105 | } |
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106 | } |
2 | 107 | if (solver.check(field)) { |
108 | field.setAllCellsModified(false); | |
6 | 109 | try { |
110 | doc.save(field); | |
111 | } catch (IOException e) { | |
112 | JOptionPane.showMessageDialog(field, | |
113 | "Datei konnte nicht gespeichert werden: "+e.getMessage(), | |
114 | "Sudoku", JOptionPane.ERROR_MESSAGE); | |
115 | } | |
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116 | return true; |
2 | 117 | } else { |
118 | JOptionPane.showMessageDialog(field, | |
119 | "Das Feld kann mit Fehlern nicht gespeichert werden!", | |
120 | "Sudoku", JOptionPane.ERROR_MESSAGE); | |
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121 | return false; |
2 | 122 | } |
123 | } | |
124 | ||
125 | private void check() { | |
126 | if (solver.check(field)) { | |
127 | JOptionPane.showMessageDialog(field, "Überprüfung erfolgreich!", | |
128 | "Sudoku", JOptionPane.INFORMATION_MESSAGE); | |
129 | } else { | |
130 | JOptionPane.showMessageDialog(field, "Das Feld enthält Fehler!", | |
131 | "Sudoku", JOptionPane.WARNING_MESSAGE); | |
132 | } | |
133 | } | |
134 | ||
135 | private void solve() { | |
7 | 136 | if (!solver.check(field) || !solver.solve(field)) { |
137 | JOptionPane.showMessageDialog(field, "Das Feld ist nicht lösbar!", | |
138 | "Sudoku", JOptionPane.WARNING_MESSAGE); | |
139 | } | |
2 | 140 | } |
4 | 141 | |
142 | private boolean saveUnsaved() { | |
143 | boolean proceed = false; | |
144 | if (field.isAnyCellModified()) { | |
145 | int result = JOptionPane.showConfirmDialog(field, | |
146 | "Das Feld ist ungespeichert - jetzt speichern?", | |
147 | "Sudoku", JOptionPane.YES_NO_CANCEL_OPTION); | |
148 | if (result == JOptionPane.YES_OPTION) { | |
6 | 149 | if (save(false)) { |
4 | 150 | proceed = true; |
151 | } | |
152 | } else if (result == JOptionPane.NO_OPTION) { | |
153 | proceed = true; | |
154 | } | |
155 | } else { | |
156 | proceed = true; | |
157 | } | |
158 | ||
159 | return proceed; | |
160 | } | |
2 | 161 | |
162 | @Override | |
163 | public void actionPerformed(ActionEvent e) { | |
164 | switch (e.getActionCommand()) { | |
4 | 165 | case NEW: |
166 | if (saveUnsaved()) { | |
7 | 167 | doc.clearFilename(); |
4 | 168 | field.clear(); |
169 | } | |
170 | break; | |
6 | 171 | case OPEN: |
172 | open(); | |
173 | break; | |
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174 | case SAVE: |
6 | 175 | save(false); |
176 | break; | |
177 | case SAVE_AS: | |
178 | save(true); | |
2 | 179 | break; |
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180 | case CHECK: |
2 | 181 | check(); |
182 | break; | |
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183 | case SOLVE: |
2 | 184 | solve(); |
185 | break; | |
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186 | case QUIT: |
4 | 187 | if (saveUnsaved()) { |
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188 | System.exit(0); |
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189 | } |
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190 | break; |
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191 | case ABOUT: |
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192 | JOptionPane.showMessageDialog(field, |
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193 | "Sudoku - Copyright (c) 2013 Mike Becker\nwww.uap-core.de"+ |
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194 | "\nPublished under the BSD License", |
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195 | "Sudoku", JOptionPane.INFORMATION_MESSAGE); |
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196 | break; |
2 | 197 | default: |
198 | throw new UnsupportedOperationException( | |
199 | "unknown action: "+e.getActionCommand()); | |
200 | } | |
201 | } | |
202 | ||
203 | } |