Java tutorial
//The MIT License // //Copyright (c) 2009 nodchip // //Permission is hereby granted, free of charge, to any person obtaining a copy //of this software and associated documentation files (the "Software"), to deal //in the Software without restriction, including without limitation the rights //to use, copy, modify, merge, publish, distribute, sublicense, and/or sell //copies of the Software, and to permit persons to whom the Software is //furnished to do so, subject to the following conditions: // //The above copyright notice and this permission notice shall be included in //all copies or substantial portions of the Software. // //THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE //AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN //THE SOFTWARE. package tv.dyndns.kishibe.qmaclone.client.game.input; import java.util.Set; import java.util.TreeSet; import tv.dyndns.kishibe.qmaclone.client.constant.Constant; import tv.dyndns.kishibe.qmaclone.client.game.AnswerView; import tv.dyndns.kishibe.qmaclone.client.game.SessionData; import tv.dyndns.kishibe.qmaclone.client.game.panel.QuestionPanel; import tv.dyndns.kishibe.qmaclone.client.packet.PacketProblem; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.safehtml.client.SafeHtmlTemplates; import com.google.gwt.safehtml.shared.SafeHtml; import com.google.gwt.safehtml.shared.SafeHtmlBuilder; import com.google.gwt.safehtml.shared.SafeUri; import com.google.gwt.safehtml.shared.UriUtils; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.Widget; public class InputWidgetTato extends InputWidget implements ClickHandler { private static final String STYLE_NAME = "gwt-Button-tato"; private static final String STYLE_NAME_SELECTED = "gwt-Button-tatoSelected"; private static final String STYLE_NAME_IMAGE = "gwt-Button-tatoImage"; private static final String STYLE_NAME_IMAGE_SELECTED = "gwt-Button-tatoImage"; private final Button[] buttonChoice; private final Button buttonOk = new Button("OK", this); private final Set<Integer> selectedIndex = new TreeSet<Integer>(); private final boolean isImage; private final int numberOfChoice; public interface MyTemplate extends SafeHtmlTemplates { @Template("{0}<img src='{1}' width='160px' height='120px'/>") SafeHtml image(String letter, SafeUri imageUrl); } private static final MyTemplate TEMPLATE = GWT.create(MyTemplate.class); public InputWidgetTato(PacketProblem problem, AnswerView answerView, QuestionPanel questionPanel, SessionData sessionData) { super(problem, answerView, questionPanel, sessionData); this.isImage = problem.imageChoice; this.numberOfChoice = problem.getNumberOfShuffledChoices(); this.buttonChoice = new Button[numberOfChoice]; if (problem.imageChoice) { Grid grid = new Grid(2, 2); for (int i = 0; i < numberOfChoice; ++i) { String imageUrl = problem.getShuffledChoice4AsImageUrl(i); buttonChoice[i] = new Button(TEMPLATE.image(getLetter(DIGIT, i), UriUtils.fromString(imageUrl)), this); buttonChoice[i].setStyleName(STYLE_NAME_IMAGE); grid.setWidget(i / 2, i % 2, buttonChoice[i]); } add(grid); } else { Grid grid = new Grid(numberOfChoice, 2); for (int i = 0; i < numberOfChoice; ++i) { Label label = new Label(getLetter(DIGIT, i)); label.addStyleDependentName("buttonIndex"); grid.setWidget(i, 0, label); String choice = problem.shuffledChoices[i]; buttonChoice[i] = new Button( new SafeHtmlBuilder().appendEscapedLines(choice.replaceAll("%n", "\n")).toSafeHtml(), this); buttonChoice[i].setStyleName(STYLE_NAME); grid.setWidget(i, 1, buttonChoice[i]); } add(grid); } buttonOk.setStyleName("gwt-Button-tatoControl"); add(buttonOk); } public void enable(boolean b) { for (int i = 0; i < buttonChoice.length; ++i) { buttonChoice[i].setEnabled(b); } buttonOk.setEnabled(b); } @Override public void onClick(ClickEvent event) { Widget sender = (Widget) event.getSource(); if (sender == buttonOk) { StringBuilder answerSend = new StringBuilder(); for (int i = 0; i < numberOfChoice; ++i) { if (selectedIndex.contains(i)) { if (answerSend.length() != 0) { answerSend.append(Constant.DELIMITER_GENERAL); } answerSend.append(problem.shuffledChoices[i]); } } sendAnswer(answerSend.toString()); } else { int clickedIndex = 0; for (; clickedIndex < problem.getNumberOfShuffledChoices(); ++clickedIndex) { if (sender == buttonChoice[clickedIndex]) { break; } } // ???? if (selectedIndex.contains(clickedIndex)) { selectedIndex.remove(clickedIndex); } else { selectedIndex.add(clickedIndex); } StringBuilder buffer = new StringBuilder(); for (int index : selectedIndex) { buffer.append(getLetter(DIGIT, index)); } answerView.set(buffer.toString(), false); // ? playSound(Constant.SOUND_URL_BUTTON_PUSH); // ? if (isImage) { if (selectedIndex.contains(clickedIndex)) { sender.setStyleName(STYLE_NAME_IMAGE_SELECTED); } else { sender.setStyleName(STYLE_NAME_IMAGE); } } else { if (selectedIndex.contains(clickedIndex)) { sender.setStyleName(STYLE_NAME_SELECTED); } else { sender.setStyleName(STYLE_NAME); } } } } }