/* * Copyright (c) 2008-2010, Matthias Mann * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 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. * * Neither the name of Matthias Mann nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * 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 OWNER 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 chat; import de.matthiasmann.twl.DesktopArea; import de.matthiasmann.twl.DialogLayout; import de.matthiasmann.twl.EditField; import de.matthiasmann.twl.Event; import de.matthiasmann.twl.FPSCounter; import de.matthiasmann.twl.GUI; import de.matthiasmann.twl.ResizableFrame; import de.matthiasmann.twl.ScrollPane; import de.matthiasmann.twl.TextArea; import de.matthiasmann.twl.textarea.HTMLTextAreaModel; import de.matthiasmann.twl.renderer.lwjgl.LWJGLRenderer; import de.matthiasmann.twl.theme.ThemeManager; import org.lwjgl.Sys; import org.lwjgl.opengl.Display; import org.lwjgl.opengl.DisplayMode; import org.lwjgl.opengl.GL11; import test.TestUtils; /** * A chat demo * * This class also acts as root pane * * @author Matthias Mann */ public class ChatDemo extends DesktopArea { public static void main(String[] args) { try { Display.setDisplayMode(new DisplayMode(800, 600)); Display.create(); Display.setTitle("TWL Chat Demo"); Display.setVSyncEnabled(true); LWJGLRenderer renderer = new LWJGLRenderer(); ChatDemo chat = new ChatDemo(); GUI gui = new GUI(chat, renderer); ThemeManager theme = ThemeManager.createThemeManager( ChatDemo.class.getResource("chat.xml"), renderer); gui.applyTheme(theme); while(!Display.isCloseRequested() && !chat.quit) { GL11.glClear(GL11.GL_COLOR_BUFFER_BIT); gui.update(); Display.update(); TestUtils.reduceInputLag(); } gui.destroy(); theme.destroy(); } catch (Exception ex) { TestUtils.showErrMsg(ex); } Display.destroy(); } private final FPSCounter fpsCounter; private final ChatFrame chatFrame; public boolean quit; public ChatDemo() { fpsCounter = new FPSCounter(); add(fpsCounter); chatFrame = new ChatFrame(); add(chatFrame); chatFrame.setSize(400, 200); chatFrame.setPosition(10, 350); } @Override protected void layout() { super.layout(); // fpsCounter is bottom right fpsCounter.adjustSize(); fpsCounter.setPosition( getInnerWidth() - fpsCounter.getWidth(), getInnerHeight() - fpsCounter.getHeight()); } @Override protected boolean handleEvent(Event evt) { if(super.handleEvent(evt)) { return true; } switch (evt.getType()) { case KEY_PRESSED: switch (evt.getKeyCode()) { case Event.KEY_ESCAPE: quit = true; return true; } } return false; } static class ChatFrame extends ResizableFrame { private final StringBuilder sb; private final HTMLTextAreaModel textAreaModel; private final TextArea textArea; private final EditField editField; private final ScrollPane scrollPane; private int curColor; public ChatFrame() { setTitle("Chat"); this.sb = new StringBuilder(); this.textAreaModel = new HTMLTextAreaModel(); this.textArea = new TextArea(textAreaModel); this.editField = new EditField(); editField.addCallback(new EditField.Callback() { public void callback(int key) { if(key == Event.KEY_RETURN) { // cycle through 3 different colors/font styles appendRow("color"+curColor, editField.getText()); editField.setText(""); curColor = (curColor + 1) % 3; } } }); textArea.addCallback(new TextArea.Callback() { public void handleLinkClicked(String href) { Sys.openURL(href); } }); scrollPane = new ScrollPane(textArea); scrollPane.setFixed(ScrollPane.Fixed.HORIZONTAL); DialogLayout l = new DialogLayout(); l.setTheme("content"); l.setHorizontalGroup(l.createParallelGroup(scrollPane, editField)); l.setVerticalGroup(l.createSequentialGroup(scrollPane, editField)); add(l); appendRow("default", "Welcome to the chat demo. Type your messages below :)"); } private void appendRow(String font, String text) { sb.append("
"); // not efficient but simple for(int i=0,l=text.length() ; i': sb.append(">"); break; case '&': sb.append("&"); break; case '"': sb.append("""); break; case ':': if(text.startsWith(":)", i)) { sb.append("\":)\"/"); i += 1; // skip one less because of i++ in the for loop break; } sb.append(ch); break; case 'h': if(text.startsWith("http://", i)) { int end = i + 7; while(end < l && isURLChar(text.charAt(end))) { end++; } String href = text.substring(i, end); sb.append("").append(href) .append(""); i = end - 1; // skip one less because of i++ in the for loop break; } // fall through: default: sb.append(ch); } } sb.append("
"); boolean isAtEnd = scrollPane.getMaxScrollPosY() == scrollPane.getScrollPositionY(); textAreaModel.setHtml(sb.toString()); if(isAtEnd) { scrollPane.validateLayout(); scrollPane.setScrollPositionY(scrollPane.getMaxScrollPosY()); } } private boolean isURLChar(char ch) { return (ch == '.') || (ch == '/') || (ch == '%') || (ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'); } } }