/* * @(#)Highlighting.java	1.31 06/08/29 *  * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: *  * -Redistribution of source code must retain the above copyright notice, this *  list of conditions and the following disclaimer. *  * -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may  * be used to endorse or promote products derived from this software without  * specific prior written permission. *  * This software is provided "AS IS," without a warranty of any kind. ALL  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN") * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,  * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. *  * You acknowledge that this software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of any * nuclear facility. *//* * @(#)Highlighting.java	1.31 06/08/29 */package java2d.demos.Fonts;import static java.awt.Color.*;import java.awt.*;import java.awt.event.*;import java.awt.font.TextLayout;import java.awt.font.TextHitInfo;import java.awt.font.FontRenderContext;import java.awt.geom.Rectangle2D;import java.awt.geom.AffineTransform;import java2d.AnimatingSurface;/** * Highlighting of text showing the caret, the highlight & the character * advances. */public class Highlighting extends AnimatingSurface {    private static String text[] = { "HILIGHTING", "Java2D" };    private static Color colors[] = { CYAN, LIGHT_GRAY };    private static Font smallF = new Font("Monospaced", Font.PLAIN, 8);    private int[] curPos;    private TextLayout[] layouts;    private Font[] fonts;    public Highlighting() {        setBackground(WHITE);        fonts = new Font[2];        layouts = new TextLayout[fonts.length];        curPos = new int[fonts.length];    }    public void reset(int w, int h) {        fonts[0] = new Font("Monospaced",Font.PLAIN,w/text[0].length()+8);        fonts[1] = new Font("Serif", Font.BOLD,w/text[1].length());        for (int i = 0; i < layouts.length; i++ ) {            curPos[i] = 0;        }    }    public void step(int w, int h) {        setSleepAmount(900);        for (int i = 0; i < 2; i++) {            if (layouts[i] == null) {                continue;            }            if (curPos[i]++ == layouts[i].getCharacterCount()) {                curPos[i] = 0;            }        }    }    public void render(int w, int h, Graphics2D g2) {        FontRenderContext frc = g2.getFontRenderContext();        for (int i = 0; i < 2; i++) {            layouts[i]  = new TextLayout(text[i], fonts[i], frc);            float rw = layouts[i].getAdvance();            float rh = layouts[i].getAscent() + layouts[i].getDescent();            float rx = (float) ((w - rw) /2);            float ry = (float) ((i == 0) ? h/3 : h * 0.75f);            // draw highlighted shape            Shape hilite = layouts[i].getLogicalHighlightShape(0, curPos[i]);            AffineTransform at = AffineTransform.getTranslateInstance(rx, ry);            hilite = at.createTransformedShape(hilite);            float hy = (float) hilite.getBounds2D().getY();            float hh = (float) hilite.getBounds2D().getHeight();            g2.setColor(colors[i]);            g2.fill(hilite);            // get caret shape            Shape[] shapes = layouts[i].getCaretShapes(curPos[i]);            Shape caret = at.createTransformedShape(shapes[0]);            g2.setColor(BLACK);            layouts[i].draw(g2, rx, ry);            g2.draw(caret);            g2.draw(new Rectangle2D.Float(rx,hy,rw,hh));            // Display character advances.            for (int j = 0; j <= layouts[i].getCharacterCount(); j++) {                float[] cInfo = layouts[i].getCaretInfo(TextHitInfo.leading(j));                String str = String.valueOf((int) cInfo[0]);                TextLayout tl = new TextLayout(str,smallF,frc);                tl.draw(g2, (float) rx+cInfo[0]-tl.getAdvance()/2, hy+hh+tl.getAscent()+1.0f);            }        }    }    public static void main(String argv[]) {        createDemoFrame(new Highlighting());    }}