Java tutorial
/** * Copyright (C) 2012 Just Do One More * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.jdom.word.playdough.presenter; import java.io.File; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.List; import java.util.Properties; import org.apache.commons.lang3.StringUtils; import com.jdom.util.Observer; import com.jdom.util.PropertiesUtil; import com.jdom.util.Subject; import com.jdom.word.playdough.model.GamePackPlayerModel; import com.jdom.word.playdough.model.GamePackPlayerSerializer; import com.jdom.word.playdough.model.GamePackPlayerSerializerImpl; import com.jdom.word.playdough.model.Jumble; public class GamePackPlayerPresenter implements Observer { static GamePackPlayerSerializer serializer = new GamePackPlayerSerializerImpl(); private final GamePackPlayerModel model; GamePackPlayerView view; private boolean[] originalSourceLettersUsedMarkers; public GamePackPlayerPresenter(GamePackPlayerModel model, GamePackPlayerView view) { this.model = model; this.view = view; } public void saveStateAndExit() { Properties properties = serializer.serialize(model.getJumble()); PropertiesUtil.writePropertiesFile(properties, new File(view.getFilesDir(), model.getJumble().getGamePackName())); this.model.unregisterObserver(this); this.view = null; } public void loadState() { Jumble jumble = model.getJumble(); try { File file = new File(view.getFilesDir(), jumble.getGamePackName()); Properties properties = PropertiesUtil.readPropertiesFile(file); jumble = serializer.deserialize(properties, model.getJumble()); model.setJumble(jumble); } catch (IllegalArgumentException iae) { // Just means no activity has been performed on this pack } model.registerObserver(this); } public void update(Subject subject) { Jumble jumble = model.getJumble(); updateWordsFoundDisplay(jumble); updateMessages(jumble); updateCurrentWord(jumble); updateScore(jumble); updateRunningWord(jumble); updateSourceLetters(jumble); } void updateRunningWord(Jumble jumble) { view.setRunningWord(jumble.getRunningWord()); } void updateScore(Jumble jumble) { view.setScore(jumble.getScore() + ""); } void updateMessages(Jumble jumble) { view.setMessages(jumble.getMessages()); } void updateWordsFoundDisplay(Jumble jumble) { int wordsFound = jumble.getWordsFoundCount(); int availableWords = jumble.getAvailableAnswersCount(); double percentage = ((double) wordsFound / (double) availableWords) * 100D; String wordsFoundText = wordsFound + "/" + availableWords + " (" + new DecimalFormat("##.##").format(percentage) + "%)"; view.setWordsFoundDisplay(wordsFoundText); } void updateCurrentWord(Jumble jumble) { view.setCurrentWord(jumble.getSourceWord().toUpperCase()); } void updateSourceLetters(Jumble jumble) { List<Character> sourceLetters = jumble.getSourceLetters(); String runningWord = jumble.getRunningWord(); if (runningWord == null || StringUtils.isEmpty(runningWord)) { originalSourceLettersUsedMarkers = new boolean[sourceLetters.size()]; } String sourceWord = jumble.getSourceWord(); int length = sourceWord.length(); List<ButtonConfiguration> buttons = new ArrayList<ButtonConfiguration>(length); for (int i = 0; i < length; i++) { final int currentIndex = i; Character character = new Character(sourceWord.charAt(i)); final String letter = new String("" + character).toUpperCase(); boolean shouldBeEnabled = !originalSourceLettersUsedMarkers[i]; Runnable clickAction = new Runnable() { public void run() { new Thread() { final SoundHandler soundHandler = view.getSoundHandler(); @Override public void run() { if (!soundHandler.isMuted()) { soundHandler.playButtonClick(); } } }.start(); addLetterToRunningWord(currentIndex, letter.charAt(0)); } }; ButtonConfiguration button = new ButtonConfiguration(letter, currentIndex, shouldBeEnabled, clickAction); buttons.add(button); } view.updateSourceLetters(buttons); } public void addLetterToRunningWord(int indexOfLetterInSourceWord, char letter) { Jumble jumble = model.getJumble(); originalSourceLettersUsedMarkers[indexOfLetterInSourceWord] = true; jumble.addLetterToRunningWord(letter); } public void submitWord() { model.getJumble().proposeWord(); } public void nextWord() { model.getJumble().nextWord(); } public void previousWord() { model.getJumble().previousWord(); } public void clearRunningWord() { model.getJumble().clearRunningWord(); } }