package pdp.scrabble;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import javax.swing.JComponent;
/** Source: http://www.jroller.com/gfx/date/20050215 */
public class InfiniteProgressPanel extends JComponent implements MouseListener {
private static final long serialVersionUID = 1L;
private Area[] ticker = null;
private Thread animation = null;
private boolean started = false;
private int alphaLevel = 0;
private int rampDelay = 300;
private float shield = 0.70f;
private String text = "";
private int barsCount = 14;
private float fps = 15.0f;
private RenderingHints hints = null;
public InfiniteProgressPanel() {
this("");
}
public InfiniteProgressPanel(String text) {
this(text, 14);
}
public InfiniteProgressPanel(String text, int barsCount) {
this(text, barsCount, 0.70f);
}
public InfiniteProgressPanel(String text, int barsCount, float shield) {
this(text, barsCount, shield, 15.0f);
}
public InfiniteProgressPanel(
String text, int barsCount, float shield, float fps) {
this(text, barsCount, shield, fps, 300);
}
public InfiniteProgressPanel(
String text, int barsCount, float shield, float fps, int rampDelay) {
this.text = text;
this.rampDelay = rampDelay >= 0 ? rampDelay : 0;
this.shield = shield >= 0.0f ? shield : 0.0f;
this.fps = fps > 0.0f ? fps : 15.0f;
this.barsCount = barsCount > 0 ? barsCount : 14;
this.hints = new RenderingHints(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_QUALITY);
this.hints.put(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
this.hints.put(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);
}
public void setText(String text) {
this.paintImmediately(0, 0, this.getWidth(), this.getHeight());
this.text = text;
}
public String getText() {
return this.text;
}
/** Start progress. */
public void start() {
this.addMouseListener(this);
this.setVisible(true);
this.ticker = buildTicker();
this.animation = new Animator(true);
this.animation.start();
}
/** Pause progress. */
public void stop() {
if (this.animation != null) {
this.animation.interrupt();
this.animation = null;
this.animation = new Animator(false);
this.animation.start();
}
}
/** Interrupt progress and exit. */
public void interrupt() {
if (this.animation != null) {
this.animation.interrupt();
this.animation = null;
this.removeMouseListener(this);
this.setVisible(false);
}
}
@Override
public void paintComponent(Graphics g) {
if (this.started) {
int width = this.getWidth();
@SuppressWarnings("unused")
int height = this.getHeight();
double maxY = 0.0;
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHints(this.hints);
g2.setColor(new Color(255, 255, 255, (int) (alphaLevel * shield)));
g2.fillRect(0, 0, this.getWidth(), this.getHeight());
for (int i = 0; i < ticker.length; i++) {
int channel = 224 - 128 / (i + 1);
g2.setColor(new Color(channel, channel, channel, alphaLevel));
g2.fill(this.ticker[i]);
Rectangle2D bounds = this.ticker[i].getBounds2D();
if (bounds.getMaxY() > maxY) {
maxY = bounds.getMaxY();
}
}
if (this.text != null && this.text.length() > 0) {
FontRenderContext context = g2.getFontRenderContext();
TextLayout layout = new TextLayout(this.text, getFont(), context);
Rectangle2D bounds = layout.getBounds();
g2.setColor(getForeground());
layout.draw(g2, (float) (width - bounds.getWidth()) / 2,
(float) (maxY + layout.getLeading()
+ 2 * layout.getAscent()));
}
}
}
private Area[] buildTicker() {
Area[] ticker = new Area[this.barsCount];
Point2D.Double center = new Point2D.Double(
(double) getWidth() / 2, (double) getHeight() / 2);
double fixedAngle = 2.0 * Math.PI / ((double) this.barsCount);
for (double i = 0.0; i < (double) this.barsCount; i++) {
Area primitive = buildPrimitive();
AffineTransform toCenter = AffineTransform.getTranslateInstance(
center.getX(), center.getY());
AffineTransform toBorder = AffineTransform.getTranslateInstance(
45.0, -6.0);
AffineTransform toCircle = AffineTransform.getRotateInstance(
-i * fixedAngle, center.getX(), center.getY());
AffineTransform toWheel = new AffineTransform();
toWheel.concatenate(toCenter);
toWheel.concatenate(toBorder);
primitive.transform(toWheel);
primitive.transform(toCircle);
ticker[(int) i] = primitive;
}
return ticker;
}
private Area buildPrimitive() {
Rectangle2D.Double body = new Rectangle2D.Double(6, 0, 30, 12);
Ellipse2D.Double head = new Ellipse2D.Double(0, 0, 12, 12);
Ellipse2D.Double tail = new Ellipse2D.Double(30, 0, 12, 12);
Area tick = new Area(body);
tick.add(new Area(head));
tick.add(new Area(tail));
return tick;
}
private class Animator extends Thread {
private boolean rampUp = true;
Animator(boolean rampUp) {
super("Progress Animator");
this.rampUp = rampUp;
}
@Override
public void run() {
Point2D.Double center = new Point2D.Double(
(double) getWidth() / 2, (double) getHeight() / 2);
double fixedIncrement = 2.0 * Math.PI / ((double) barsCount);
AffineTransform toCircle = AffineTransform.getRotateInstance(
fixedIncrement, center.getX(), center.getY());
long start = System.currentTimeMillis();
if (rampDelay == 0) {
alphaLevel = rampUp ? 255 : 0;
}
started = true;
boolean inRamp = rampUp;
while (!Thread.interrupted()) {
if (!inRamp) {
for (int i = 0; i < ticker.length; i++) {
ticker[i].transform(toCircle);
}
}
paintImmediately(0, 0, getWidth(), getHeight());
if (rampUp) {
if (alphaLevel < 255) {
alphaLevel = (int) (255 * (
System.currentTimeMillis() - start) / rampDelay);
if (alphaLevel >= 255) {
alphaLevel = 255;
inRamp = false;
}
}
}
else if (alphaLevel > 0) {
alphaLevel = (int) (255 - (255 * (
System.currentTimeMillis() - start) / rampDelay));
if (alphaLevel <= 0) {
alphaLevel = 0;
break;
}
}
try {
Thread.sleep(inRamp ? 10 : (int) (1000 / fps));
}
catch (InterruptedException ie) {
break;
}
Thread.yield();
}
if (!rampUp) {
started = false;
paintImmediately(0, 0, getWidth(), getHeight());
setVisible(false);
removeMouseListener(InfiniteProgressPanel.this);
}
}
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
}