/* * 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 textarea; import de.matthiasmann.twl.DesktopArea; import de.matthiasmann.twl.Event; import de.matthiasmann.twl.FPSCounter; import de.matthiasmann.twl.GUI; import de.matthiasmann.twl.Rect; import de.matthiasmann.twl.ResizableFrame; import de.matthiasmann.twl.ScrollPane; import de.matthiasmann.twl.TextArea; import de.matthiasmann.twl.Timer; import de.matthiasmann.twl.ValueAdjusterInt; import de.matthiasmann.twl.textarea.HTMLTextAreaModel; import de.matthiasmann.twl.model.SimpleIntegerModel; import de.matthiasmann.twl.renderer.lwjgl.LWJGLRenderer; import de.matthiasmann.twl.textarea.StyleAttribute; import de.matthiasmann.twl.textarea.StyleSheet; import de.matthiasmann.twl.textarea.TextAreaModel; import de.matthiasmann.twl.textarea.Value; import de.matthiasmann.twl.theme.ThemeManager; import de.matthiasmann.twl.utils.TextUtil; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import org.lwjgl.opengl.Display; import org.lwjgl.opengl.DisplayMode; import org.lwjgl.opengl.GL11; import test.TestUtils; /** * * @author Matthias Mann */ public class TextAreaDemo extends DesktopArea { public static void main(String[] args) { try { Display.setDisplayMode(new DisplayMode(800, 600)); Display.create(); Display.setTitle("TWL TextArea Demo"); Display.setVSyncEnabled(true); LWJGLRenderer renderer = new LWJGLRenderer(); TextAreaDemo demo = new TextAreaDemo(); GUI gui = new GUI(demo, renderer); ThemeManager theme = ThemeManager.createThemeManager( TextAreaDemo.class.getResource("demo.xml"), renderer); gui.applyTheme(theme); while(!Display.isCloseRequested() && !demo.quit) { GL11.glClear(GL11.GL_COLOR_BUFFER_BIT); gui.update(); /** * requires LWJGL 2.4 - for 2.3 just call Display.update() */ Display.update(false); GL11.glGetError(); // force sync with multi threaded GL driver Display.sync(60); // ensure 60Hz even without vsync Display.processMessages(); // now process inputs } gui.destroy(); theme.destroy(); } catch (Exception ex) { TestUtils.showErrMsg(ex); } Display.destroy(); } private final FPSCounter fpsCounter; private final TextFrame textFrame; public boolean quit; public TextAreaDemo() { fpsCounter = new FPSCounter(); add(fpsCounter); textFrame = new TextFrame(); add(textFrame); textFrame.setSize(600, 500); textFrame.setPosition(40, 20); } @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 TextFrame extends ResizableFrame { private final HTMLTextAreaModel textAreaModel; private final TextArea textArea; private final ScrollPane scrollPane; private Timer timer; private int size; private int dir; private static final int MIN_SIZE = 128; private static final int MAX_SIZE = 256; public TextFrame() { setTitle("Text"); this.textAreaModel = new HTMLTextAreaModel(); this.textArea = new TextArea(textAreaModel); readFile("demo.html"); textArea.addCallback(new TextArea.Callback() { public void handleLinkClicked(String href) { if(href.startsWith("javascript:")) { handleAction(href.substring(11)); } else if(href.startsWith("#")) { TextAreaModel.Element ankor = textAreaModel.getElementById(href.substring(1)); if(ankor != null) { Rect rect = textArea.getElementRect(ankor); if(rect != null) { scrollPane.setScrollPositionY(rect.getY()); } } } else { readFile(href); } } }); ValueAdjusterInt vai = new ValueAdjusterInt(new SimpleIntegerModel(0, 100, 50)); vai.setTooltipContent("Select a nice value"); textArea.registerWidget("niceValueSlider", vai); scrollPane = new ScrollPane(textArea); scrollPane.setFixed(ScrollPane.Fixed.HORIZONTAL); add(scrollPane); } @Override protected void afterAddToGUI(GUI gui) { super.afterAddToGUI(gui); timer = gui.createTimer(); timer.setDelay(16); timer.setContinuous(true); timer.setCallback(new Runnable() { public void run() { animate(); } }); } @Override protected void beforeRemoveFromGUI(GUI gui) { super.beforeRemoveFromGUI(gui); timer.stop(); timer = null; } void readFile(String name) { try { textAreaModel.readHTMLFromURL(TextAreaDemo.class.getResource(name)); StyleSheet styleSheet = new StyleSheet(); for(String styleSheetLink : textAreaModel.getStyleSheetLinks()) { try { styleSheet.parse(TextAreaDemo.class.getResource(styleSheetLink)); } catch(IOException ex) { Logger.getLogger(TextAreaDemo.class.getName()).log(Level.SEVERE, "Can't parse style sheet: " + styleSheetLink, ex); } } textArea.setStyleClassResolver(styleSheet); setTitle(TextUtil.notNull(textAreaModel.getTitle())); size = MIN_SIZE; dir = -4; } catch(IOException ex) { Logger.getLogger(TextAreaDemo.class.getName()).log(Level.SEVERE, "Can't read HTML: " + name, ex); } } void handleAction(String what) { if("zoomImage()".equals(what)) { if(timer != null && !timer.isRunning()) { dir = -dir; timer.start(); } } } void animate() { size = Math.max(MIN_SIZE, Math.min(MAX_SIZE, size + dir)); if(size == MIN_SIZE || size == MAX_SIZE) { timer.stop(); } TextAreaModel.Element e = textAreaModel.getElementById("portrait"); if(e != null) { e.setStyle(e.getStyle().with(StyleAttribute.WIDTH, new Value(size, Value.Unit.PX))); textAreaModel.domModified(); } } } }