0N/A/*
3843N/A * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
0N/A *
0N/A * Redistribution and use in source and binary forms, with or without
0N/A * modification, are permitted provided that the following conditions
0N/A * are met:
0N/A *
0N/A * - Redistributions of source code must retain the above copyright
0N/A * notice, this list of conditions and the following disclaimer.
0N/A *
0N/A * - Redistributions in binary form must reproduce the above copyright
0N/A * notice, this list of conditions and the following disclaimer in the
0N/A * documentation and/or other materials provided with the distribution.
0N/A *
2362N/A * - Neither the name of Oracle nor the names of its
0N/A * contributors may be used to endorse or promote products derived
0N/A * from this software without specific prior written permission.
0N/A *
0N/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
0N/A * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
0N/A * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
0N/A * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
0N/A * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0N/A * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
0N/A * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
0N/A * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
0N/A * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
0N/A * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
0N/A * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0N/A */
0N/A
4378N/A/*
4378N/A * This source code is provided to illustrate the usage of a given feature
4378N/A * or technique and has been deliberately simplified. Additional steps
4378N/A * required for a production-quality application, such as security checks,
4378N/A * input validation and proper error handling, might not be present in
4378N/A * this sample code.
4378N/A */
4378N/A
4378N/A
0N/A
0N/A/**
0N/A * I love blinking things.
0N/A *
0N/A * @author Arthur van Hoff
3843N/A * @author 04/24/96 Jim Hagen use getBackground
3843N/A * @author 02/05/98 Mike McCloskey removed use of deprecated methods
3843N/A * @author 04/23/99 Josh Bloch, use timer instead of explicit multithreading.
3843N/A * @author 07/10/00 Daniel Peek brought to code conventions, minor changes
0N/A */
3843N/Aimport java.awt.Color;
3843N/Aimport java.awt.Dimension;
3843N/Aimport java.awt.Font;
3843N/Aimport java.awt.FontMetrics;
3843N/Aimport java.awt.Graphics;
3843N/Aimport java.util.StringTokenizer;
3843N/Aimport java.util.Timer;
3843N/Aimport java.util.TimerTask;
0N/A
0N/A
0N/Apublic class Blink extends java.applet.Applet {
3843N/A
3843N/A private static final long serialVersionUID = -775844794477507646L;
0N/A private Timer timer; // Schedules the blinking
0N/A private String labelString; // The label for the window
0N/A private int delay; // the delay time between blinks
0N/A
3843N/A @Override
0N/A public void init() {
0N/A String blinkFrequency = getParameter("speed");
3843N/A delay = (blinkFrequency == null) ? 400
3843N/A : (1000 / Integer.parseInt(blinkFrequency));
0N/A labelString = getParameter("lbl");
3843N/A if (labelString == null) {
0N/A labelString = "Blink";
3843N/A }
0N/A Font font = new java.awt.Font("Serif", Font.PLAIN, 24);
0N/A setFont(font);
0N/A }
0N/A
3843N/A @Override
0N/A public void start() {
0N/A timer = new Timer(); //creates a new timer to schedule the blinking
0N/A timer.schedule(new TimerTask() { //creates a timertask to schedule
3843N/A
0N/A // overrides the run method to provide functionality
3843N/A @Override
0N/A public void run() {
0N/A repaint();
0N/A }
3843N/A }, delay, delay);
0N/A }
0N/A
3843N/A @Override
0N/A public void paint(Graphics g) {
0N/A int fontSize = g.getFont().getSize();
0N/A int x = 0, y = fontSize, space;
3843N/A int red = (int) (50 * Math.random());
3843N/A int green = (int) (50 * Math.random());
3843N/A int blue = (int) (256 * Math.random());
0N/A Dimension d = getSize();
0N/A g.setColor(Color.black);
0N/A FontMetrics fm = g.getFontMetrics();
0N/A space = fm.stringWidth(" ");
0N/A for (StringTokenizer t = new StringTokenizer(labelString);
3843N/A t.hasMoreTokens();) {
0N/A String word = t.nextToken();
0N/A int w = fm.stringWidth(word) + space;
0N/A if (x + w > d.width) {
0N/A x = 0;
0N/A y += fontSize; //move word to next line if it doesn't fit
0N/A }
3843N/A if (Math.random() < 0.5) {
3843N/A g.setColor(new java.awt.Color((red + y * 30) % 256,
3843N/A (green + x / 3) % 256, blue));
3843N/A } else {
0N/A g.setColor(getBackground());
3843N/A }
0N/A g.drawString(word, x, y);
0N/A x += w; //shift to the right to draw the next word
0N/A }
0N/A }
0N/A
3843N/A @Override
0N/A public void stop() {
0N/A timer.cancel(); //stops the timer
0N/A }
0N/A
3843N/A @Override
0N/A public String getAppletInfo() {
0N/A return "Title: Blinker\n"
3843N/A + "Author: Arthur van Hoff\n"
3843N/A + "Displays multicolored blinking text.";
0N/A }
0N/A
3843N/A @Override
0N/A public String[][] getParameterInfo() {
0N/A String pinfo[][] = {
3843N/A { "speed", "string", "The blink frequency" },
3843N/A { "lbl", "string", "The text to blink." }, };
0N/A return pinfo;
0N/A }
0N/A}