//**************************************
//
// Name: Funky animated Java Banner
// Description:To spice up your web page
// . Comments are in French
Written by:http://www.nctech.fr/Zimmermann/public-html/Applets/Animation/AnimCercles.html
// By: Found on the Web
//**************************************
//
import java.awt.*;
import java.util.StringTokenizer;
/** Affiche un message sur un fond de cercles concentriques animes.
* Vos remarques a vincent.zimmermann@nctech.fr
* Utilisable librement.
*
* Exemple d'utilisation dans une page HTML :
* <APPLET CODE="AnimCercles.class" WIDTH=350 HEIGHT=200>
* <PARAM NAME="bgColor" VALUE="blue">
* <PARAM NAME="fgColor" VALUE="green">
* <PARAM NAME="bgType" VALUE="RoundRect">
* <PARAM NAME="cornerX" VALUE="35">
* <PARAM NAME="cornerY" VALUE="25">
* <PARAM NAME="text" VALUE="Java !!!">
* <PARAM NAME="font" VALUE="TimesRoman">
* <PARAM NAME="style" VALUE="BOLD">
* <PARAM NAME="textColor" VALUE="red">
* <PARAM NAME="size" VALUE="90">
* <PARAM NAME="playBack" VALUE="0">
* <PARAM NAME="step" VALUE="10">
* <PARAM NAME="timeSleep" VALUE="15">
* Il aurait du y avoir une applet ici si votre Browser avait supporte Java...
* </APPLET>
*
* Explications :
* font : Helvetica, TimesRoman, Courier, Dialog
* style : PLAIN, BOLD, ITALIC, BOLDITALIC
* bgColor & fgColor : white, black, lightGray, gray, darkGray, red, green,
*& textColor blue, yellow, magenta, cyan, pink, orange
* (RGB): 255:255:255
* (RGB): 255,255,255
* (RGB): 255.255.255
* playBack : 0 ou 1
* bgType : Oval, Rect, RoundRect
* et pour le RoundRect, specifier le format du coin arrondis (cornerX, cornerY)
*
*/
public class AnimCercles extends java.applet.Applet implements Runnable
{
// On cree un Thread pour l'applet
Thread runner;
// Le message
String text;
// La police du message
Font f;
String fontString;
int style;
int size;
Color textColor;
// Position du message
int x;
int y;
// Taille de l'ecran
int width;
int height;
// Le max entre width et height.
int max;
// Pour le double buffering (eviter les scintillements)
Image offscreenImg;
Graphics offscreenG;
// Les fonds de l'ecran (pour gagner en rapidite dans l'anim)
Image[] fondEcran = new Image[6];
Graphics[] fondEcranG = new Graphics[6];
// Couleur du fond
Color bgColor;
Color fgColor;
// Le type de motif du fond (Oval, Rect, RoundRect)
String bgType;
// Dans le cas d'un RoundRect, la taille de l'arrondis
int cornerX;
int cornerY;
// Decalage entre 2 cerles
int step;
// Temps d'attente entre chaque plans de l'animation
int timeSleep;
// L'animation fait un aller retour si playBack = 1
int playBack;
// Pour la gestion des couleurs RGB
String rgbDelimiter = ":,.";
StringTokenizer st;
public void init()
{
// Recuperation des parametres de l'Applet
String s;
Integer intObj;
// Pour obtenir la taille de l'Applet en pixels.
try
{
intObj = new Integer(getParameter("width"));
width = intObj.intValue();
}
catch (Exception e)
{
width = 300;
}
try
{
intObj = new Integer(getParameter("height"));
height = intObj.intValue();
}
catch (Exception e)
{
height = 100;
}
s = getParameter("bgType");
if (s == null)
bgType = "Oval";
else if (s.equalsIgnoreCase("Rect"))
bgType = "Rect";
else if (s.equalsIgnoreCase("RoundRect"))
bgType = "RoundRect";
else
bgType = "Oval";
try
{
intObj = new Integer(getParameter("cornerX"));
cornerX = intObj.intValue();
}
catch (Exception e)
{
cornerX = 25;
}
try
{
intObj = new Integer(getParameter("cornerY"));
cornerY = intObj.intValue();
}
catch (Exception e)
{
cornerY = 25;
}
text = getParameter("text");
if (text == null)
text = "NCTech !";
s = getParameter("font");
if (s == null)
fontString = "TimesRoman";
else if (s.equalsIgnoreCase("TimesRoman"))
fontString = "TimesRoman";
else if (s.equalsIgnoreCase("Courier"))
fontString = "Courier";
else if (s.equalsIgnoreCase("Helvetica"))
fontString = "Helvetica";
else if (s.equalsIgnoreCase("Dialog"))
fontString = "Dialog";
else
fontString = "TimesRoman";
s = getParameter("style");
if (s == null)
style = Font.PLAIN;
else if (s.equalsIgnoreCase("PLAIN"))
style = Font.PLAIN;
else if (s.equalsIgnoreCase("BOLD"))
style = Font.BOLD;
else if (s.equalsIgnoreCase("ITALIC"))
style = Font.ITALIC;
else if (s.equalsIgnoreCase("BOLDITALIC") || s.equalsIgnoreCase("ITALICBOLD"))
style = Font.BOLD + Font.ITALIC;
else
style = Font.PLAIN;
try
{
intObj = new Integer(getParameter("size"));
size = intObj.intValue();
}
catch (Exception e)
{
size = 20;
}
s = getParameter("textColor");
if (s != null) st = new StringTokenizer(s, rgbDelimiter);
if (s == null)
textColor = Color.lightGray;
else if (s.equalsIgnoreCase("white"))
textColor = Color.white;
else if (s.equalsIgnoreCase("black"))
textColor = Color.black;
else if (s.equalsIgnoreCase("lightGray"))
textColor = Color.lightGray;
else if (s.equalsIgnoreCase("gray"))
textColor = Color.gray;
else if (s.equalsIgnoreCase("darkGray"))
textColor = Color.darkGray;
else if (s.equalsIgnoreCase("red"))
textColor = Color.red;
else if (s.equalsIgnoreCase("green"))
textColor = Color.green;
else if (s.equalsIgnoreCase("blue"))
textColor = Color.blue;
else if (s.equalsIgnoreCase("magenta"))
textColor = Color.magenta;
else if (s.equalsIgnoreCase("cyan"))
textColor = Color.cyan;
else if (s.equalsIgnoreCase("pink"))
textColor = Color.pink;
else if (s.equalsIgnoreCase("orange"))
textColor = Color.orange;
else if (st.countTokens() == 3) {
Integer r = new Integer(st.nextToken());
Integer g = new Integer(st.nextToken());
Integer b = new Integer(st.nextToken());
textColor = new Color(r.intValue(), g.intValue(), b.intValue());
} else
textColor = Color.yellow;
try
{
intObj = new Integer(getParameter("step"));
step = intObj.intValue();
}
catch (Exception e)
{
step = 5;
}
try
{
intObj = new Integer(getParameter("timeSleep"));
timeSleep = intObj.intValue();
}
catch (Exception e)
{
timeSleep = 10;
}
try
{
intObj = new Integer(getParameter("playBack"));
playBack = intObj.intValue();
}
catch (Exception e)
{
playBack = 1;
}
s = getParameter("bgColor");
if (s != null) st = new StringTokenizer(s, rgbDelimiter);
if (s == null)
bgColor = Color.lightGray;
else if (s.equalsIgnoreCase("white"))
bgColor = Color.white;
else if (s.equalsIgnoreCase("black"))
bgColor = Color.black;
else if (s.equalsIgnoreCase("gray"))
bgColor = Color.gray;
else if (s.equalsIgnoreCase("darkGray"))
bgColor = Color.darkGray;
else if (s.equalsIgnoreCase("red"))
bgColor = Color.red;
else if (s.equalsIgnoreCase("green"))
bgColor = Color.green;
else if (s.equalsIgnoreCase("blue"))
bgColor = Color.blue;
else if (s.equalsIgnoreCase("yellow"))
bgColor = Color.yellow;
else if (s.equalsIgnoreCase("magenta"))
bgColor = Color.magenta;
else if (s.equalsIgnoreCase("cyan"))
bgColor = Color.cyan;
else if (s.equalsIgnoreCase("pink"))
bgColor = Color.pink;
else if (s.equalsIgnoreCase("orange"))
bgColor = Color.orange;
else if (st.countTokens() == 3) {
Integer r = new Integer(st.nextToken());
Integer g = new Integer(st.nextToken());
Integer b = new Integer(st.nextToken());
bgColor = new Color(r.intValue(), g.intValue(), b.intValue());
} else
bgColor = Color.lightGray;
s = getParameter("fgColor");
if (s != null) st = new StringTokenizer(s, rgbDelimiter);
if (s == null)
fgColor = Color.lightGray;
else if (s.equalsIgnoreCase("white"))
fgColor = Color.white;
else if (s.equalsIgnoreCase("black"))
fgColor = Color.black;
else if (s.equalsIgnoreCase("lightGray"))
fgColor = Color.lightGray;
else if (s.equalsIgnoreCase("gray"))
fgColor = Color.gray;
else if (s.equalsIgnoreCase("darkGray"))
fgColor = Color.darkGray;
else if (s.equalsIgnoreCase("red"))
fgColor = Color.red;
else if (s.equalsIgnoreCase("green"))
fgColor = Color.green;
else if (s.equalsIgnoreCase("blue"))
fgColor = Color.blue;
else if (s.equalsIgnoreCase("magenta"))
fgColor = Color.magenta;
else if (s.equalsIgnoreCase("cyan"))
fgColor = Color.cyan;
else if (s.equalsIgnoreCase("pink"))
fgColor = Color.pink;
else if (s.equalsIgnoreCase("orange"))
fgColor = Color.orange;
else if (st.countTokens() == 3) {
Integer r = new Integer(st.nextToken());
Integer g = new Integer(st.nextToken());
Integer b = new Integer(st.nextToken());
fgColor = new Color(r.intValue(), g.intValue(), b.intValue());
} else
fgColor = Color.yellow;
setBackground(bgColor);
f = new Font(fontString, style, size);
// Pour un placement correct du message dans la zone d'affichage
FontMetrics fm = getFontMetrics(f);
int textWidth = fm.stringWidth(text);
x = (width - textWidth) / 2;
int textHeight = fm.getAscent() + fm.getDescent();
y = (height - textHeight) / 2 + fm.getAscent();
offscreenImg = createImage(width, height);
offscreenG = offscreenImg.getGraphics();
offscreenG.setColor(bgColor);
offscreenG.fillRect(0, 0, width, height);
repaint();
}
public void start()
{
if (runner == null);
{
runner = new Thread(this);
runner.start();
}
}
public void stop()
{
if (runner != null)
{
runner.stop();
runner = null;
}
}
public void createBackground()
{
boolean switchColor;
for (int i=0; i <= 5; i++)
{
fondEcran[i] = createImage(width, height);
fondEcranG[i] = fondEcran[i].getGraphics();
fondEcranG[i].setColor(bgColor);
fondEcranG[i].fillRect(0, 0, width, height);
switchColor = true;
for (int j= max + ((i + 1) * (step / 3)); j >= 0; j -= step)
{
if (switchColor)
{
fondEcranG[i].setColor(bgColor);
if (bgType.equals("Oval")) fondEcranG[i].fillOval((width - j) / 2, (height - j) / 2, j, j);
if (bgType.equals("Rect")) fondEcranG[i].fillRect((width - j) / 2, (height - j) / 2, j, j);
if (bgType.equals("RoundRect")) fondEcranG[i].fillRoundRect((width - j) / 2, (height - j) / 2, j, j, cornerX, cornerY);
switchColor = false;
}
else
{
fondEcranG[i].setColor(fgColor);
if (bgType.equals("Oval")) fondEcranG[i].fillOval((width - j) / 2, (height - j) / 2, j, j);
if (bgType.equals("Rect")) fondEcranG[i].fillRect((width - j) / 2, (height - j) / 2, j, j);
if (bgType.equals("RoundRect")) fondEcranG[i].fillRoundRect((width - j) / 2, (height - j) / 2, j, j, cornerX, cornerY);
switchColor = true;
}
}
}
}
public void run()
{
if (width > height)
max = width;
else max = height;
max *= Math.sqrt(2);
createBackground();
repaint();
offscreenG.setFont(f);
offscreenG.setColor(textColor);
while (true)
{
for (int i=0; i <= 5; i++)
{
offscreenG.drawImage(fondEcran[i], 0, 0, this);
offscreenG.drawString(text, x, y);
repaint();
try { Thread.sleep(timeSleep); }
catch (InterruptedException e) { }
}
if (playBack == 1)
{
for (int i=5; i >= 0; i--)
{
offscreenG.drawImage(fondEcran[i], 0, 0, this);
offscreenG.drawString(text, x, y);
try { Thread.sleep(timeSleep); }
catch (InterruptedException e) { }
repaint();
}
}
}
}
public void update(Graphics g)
{
paint(g);
}
public void paint(Graphics g)
{
g.drawImage(offscreenImg, 0, 0, this);
}
public String getAppletInfo()
{
return "AnimCercles, april 1997, Vincent Zimmermann at NCTech, France";
}
}
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