/* * @(#)Highlighting.java	1.19 99/04/23 * * Copyright (c) 1998, 1999 by Sun Microsystems, Inc. All Rights Reserved. *  * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use, * modify and redistribute this software in source and binary code form, * provided that i) this copyright notice and license appear on all copies of * the software; and ii) Licensee does not utilize the software in a manner * which is disparaging to Sun. *  * 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 AND ITS LICENSORS SHALL NOT BE * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING * OR DISTRIBUTING THE 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 SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. *  * This software is not designed or intended for use in on-line control of * aircraft, air traffic, aircraft navigation or aircraft communications; or in * the design, construction, operation or maintenance of any nuclear * facility. Licensee represents and warrants that it will not use or * redistribute the Software for such purposes. */package demos.Fonts;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 AnimatingContext;import DemoSurface;import DemoPanel;/** * Highlighting of text showing the caret, the highlight & the character * advances. */public class Highlighting extends DemoSurface implements AnimatingContext {    private static String text[] = { "HILIGHTING", "Java2D" };    private static Color colors[] = { Color.cyan, Color.lightGray };    private static Font smallF = new Font("Courier", Font.PLAIN, 8);    private int[] curPos;    private TextLayout[] layouts;    private Font[] fonts;    public Highlighting() {        setBackground(Color.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("Courier",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 drawDemo(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 rx = (float) (w/2-layouts[i].getBounds().getWidth()/2);            float ry = (float) ((i == 0) ? h/3 : h * 0.75f);            float rw = (float) (layouts[i].getBounds().getWidth());            float rh = (float) (layouts[i].getBounds().getHeight());            // 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.getBounds().getY();            float hh = (float) hilite.getBounds().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(Color.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], hy+hh+tl.getAscent()+1.0f);            }        }    }    public static void main(String argv[]) {        final DemoPanel dp = new DemoPanel(new Highlighting());        Frame f = new Frame("Java2D Demo - Highlighting");        f.addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {System.exit(0);}            public void windowDeiconified(WindowEvent e) {                 dp.surface.start();             }            public void windowIconified(WindowEvent e) {                 dp.surface.stop();             }        });        f.add("Center", dp);        f.pack();        f.setSize(new Dimension(400,300));        f.show();        dp.surface.start();    }}