/*
* WaitFrame.java, 2006-02-06
*
* This file is part of xtnd-commons.
*
* Copyright © 2006-2010 Johan Cwiklinski
*
* File : WaitFrame.java
* Author's email : johan@x-tnd.be
* Author's Website : http://ulysses.fr
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
package be.xtnd.commons.gui;
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;
/**
* @author Johan Cwiklinski
* @since 2006-02-06
*/
public class WaitFrame extends JComponent implements MouseListener {
private static final long serialVersionUID = 1632334964276016366L;
protected Area[] ticker = null;
protected Thread animation = null;
protected boolean started = false;
protected int alphaLevel = 0;
protected int rampDelay = 300;
protected float shield = 0.70f;
protected String text = "";
protected int barsCount = 14;
protected float fps = 15.0f;
protected RenderingHints hints = null;
/**
*
*/
public WaitFrame()
{
this("");
}
/**
*
* @param text
*/
public WaitFrame(String text)
{
this(text, 14);
}
/**
*
* @param text
* @param barsCount
*/
public WaitFrame(String text, int barsCount)
{
this(text, barsCount, 0.70f);
}
/**
*
* @param text
* @param barsCount
* @param shield
*/
public WaitFrame(String text, int barsCount, float shield)
{
this(text, barsCount, shield, 15.0f);
}
/**
*
* @param text
* @param barsCount
* @param shield
* @param fps
*/
public WaitFrame(String text, int barsCount, float shield, float fps)
{
this(text, barsCount, shield, fps, 300);
}
/**
*
* @param text
* @param barsCount
* @param shield
* @param fps
* @param rampDelay
*/
public WaitFrame(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);
}
/**
*
* @param text
*/
public void setText(String text)
{
repaint();
this.text = text;
}
/**
*
* @return String
*/
public String getText()
{
return text;
}
/**
*
*
*/
public void start()
{
addMouseListener(this);
setVisible(true);
ticker = buildTicker();
animation = new Thread(new Animator(true));
animation.start();
}
/**
*
*
*/
public void stop()
{
if (animation != null) {
animation.interrupt();
animation = null;
animation = new Thread(new Animator(false));
animation.start();
}
}
/**
*
*
*/
public void interrupt()
{
if (animation != null) {
animation.interrupt();
animation = null;
removeMouseListener(this);
setVisible(false);
}
}
/**
* @param g
*/
public void paintComponent(Graphics g)
{
if (started)
{
int width = getWidth();
//int height = getHeight();
double maxY = 0.0;
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHints(hints);
g2.setColor(new Color(255, 255, 255, (int) (alphaLevel * shield)));
g2.fillRect(0, 0, getWidth(), 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(ticker[i]);
Rectangle2D bounds = ticker[i].getBounds2D();
if (bounds.getMaxY() > maxY)
maxY = bounds.getMaxY();
}
if (text != null && text.length() > 0)
{
FontRenderContext context = g2.getFontRenderContext();
TextLayout layout = new TextLayout(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[barsCount];
Point2D.Double center = new Point2D.Double((double) getWidth() / 2, (double) getHeight() / 2);
double fixedAngle = 2.0 * Math.PI / ((double) barsCount);
for (double i = 0.0; i < (double) 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;
}
protected class Animator implements Runnable
{
private boolean rampUp = true;
protected Animator(boolean rampUp)
{
this.rampUp = rampUp;
}
/**
*
*/
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);
}
repaint();
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;
repaint();
setVisible(false);
removeMouseListener(WaitFrame.this);
}
}
}
/**
* @param e
*/
public void mouseClicked(MouseEvent e) {
}
/**
* @param e
*/
public void mousePressed(MouseEvent e) {
}
/**
* @param e
*/
public void mouseReleased(MouseEvent e) {
}
/**
* @param e
*/
public void mouseEntered(MouseEvent e) {
}
/**
* @param e
*/
public void mouseExited(MouseEvent e) {
}
}