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JIDE Common Layer (Professional Swing Components)
/*
* @(#)VsnetMetalProgressBarUI.java 6/21/2005
*
* Copyright 2002 - 2005 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.plaf.vsnet;
import com.jidesoft.plaf.UIDefaultsLookup;
import com.jidesoft.swing.JideSwingUtilities;
import javax.swing.*;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.metal.MetalProgressBarUI;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;
/**
* A better ProgressBarUI for indeterminate progress bar.
*
* v * Credit: This implementation is based on work from Santhosh Kumar - [email protected].
*/
public class VsnetMetalProgressBarUI extends MetalProgressBarUI implements ActionListener {
/**
* Interval (in ms) between repaints of the indeterminate progress bar.
* The value of this method is set
* (every time the progress bar changes to indeterminate mode)
* using the
* "ProgressBar.repaintInterval" key in the defaults table.
*/
private int repaintInterval;
private int x = 0, y = 0, delta = +1;
private Timer timer = null;
public static ComponentUI createUI(JComponent x) {
return new VsnetMetalProgressBarUI();
}
@Override
protected void installDefaults() {
super.installDefaults();
initRepaintInterval(); //initialize repaint interval
}
@Override
protected void startAnimationTimer() {
if (timer == null) {
timer = new Timer(getRepaintInterval() / 20, this);
}
x = y = 0;
delta = 1;
timer.start();
}
@Override
protected void stopAnimationTimer() {
if (timer != null) {
timer.stop();
}
}
public void actionPerformed(ActionEvent ae) {
// style1
if (x == 0)
delta = +1;
else if (x == progressBar.getWidth())
delta = -1;
x += delta;
progressBar.repaint();
}
/**
* Returns the desired number of milliseconds between repaints.
* This value is meaningful
* only if the progress bar is in indeterminate mode.
* The repaint interval determines how often the
* default animation thread's timer is fired.
* It's also used by the default indeterminate progress bar
* painting code when determining
* how far to move the bouncing box per frame.
* The repaint interval is specified by
* the "ProgressBar.repaintInterval" UI default.
*
* @return the repaint interval, in milliseconds
*/
protected int getRepaintInterval() {
return repaintInterval;
}
private int initRepaintInterval() {
repaintInterval = UIDefaultsLookup.getInt("ProgressBar.repaintInterval");
return repaintInterval;
}
private Rectangle boxRect;
@Override
public void paintIndeterminate(Graphics g, JComponent c) {
super.paintDeterminate(g, c);
if (!(g instanceof Graphics2D)) {
return;
}
Color startColor = progressBar.getForeground();
Color endColor = VsnetUtils.getLighterColor(startColor, 0.9f);
Insets b = progressBar.getInsets(); // area for border
int barRectWidth = progressBar.getWidth() - (b.right + b.left);
int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);
Graphics2D g2d = (Graphics2D) g;
// Paint the bouncing box.
boolean isVertical = c.getHeight() > c.getWidth();
if (delta > 0) {
boxRect = new Rectangle(0, 0, x, progressBar.getHeight() - 1);
JideSwingUtilities.fillNormalGradient(g2d, boxRect, endColor, startColor, isVertical);
}
else {
boxRect = new Rectangle(x, 0, progressBar.getWidth() - x, progressBar.getHeight() - 1);
JideSwingUtilities.fillNormalGradient(g2d, boxRect, startColor, endColor, isVertical);
}
// Deal with possible text painting
if (progressBar.isStringPainted()) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
paintString(g2d, b.left, b.top,
barRectWidth, barRectHeight,
boxRect.x, boxRect.width, b);
}
else {
paintString(g2d, b.left, b.top,
barRectWidth, barRectHeight,
boxRect.y, boxRect.height, b);
}
}
}
/**
* Paints the progress string.
*
* @param g Graphics used for drawing.
* @param x x location of bounding box
* @param y y location of bounding box
* @param width width of bounding box
* @param height height of bounding box
* @param fillStart start location, in x or y depending on orientation,
* of the filled portion of the progress bar.
* @param amountFull size of the fill region, either width or height
* depending upon orientation.
* @param b Insets of the progress bar.
*/
private void paintString(Graphics g, int x, int y, int width, int height,
int fillStart, int amountFull, Insets b) {
if (!(g instanceof Graphics2D)) {
return;
}
Graphics2D g2 = (Graphics2D) g;
String progressString = progressBar.getString();
g2.setFont(progressBar.getFont());
Point renderLocation = getStringPlacement(g2, progressString,
x, y, width, height);
Rectangle oldClip = g2.getClipBounds();
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
g2.setColor(getSelectionBackground());
JideSwingUtilities.drawString(progressBar, g2, progressString,
renderLocation.x, renderLocation.y);
g2.setColor(getSelectionForeground());
g2.clipRect(fillStart, y, amountFull, height);
JideSwingUtilities.drawString(progressBar, g2, progressString,
renderLocation.x, renderLocation.y);
}
else { // VERTICAL
g2.setColor(getSelectionBackground());
AffineTransform rotate =
AffineTransform.getRotateInstance(Math.PI / 2);
g2.setFont(progressBar.getFont().deriveFont(rotate));
renderLocation = getStringPlacement(g2, progressString,
x, y, width, height);
JideSwingUtilities.drawString(progressBar, g2, progressString,
renderLocation.x, renderLocation.y);
g2.setColor(getSelectionForeground());
g2.clipRect(x, fillStart, width, amountFull);
JideSwingUtilities.drawString(progressBar, g2, progressString,
renderLocation.x, renderLocation.y);
}
g2.setClip(oldClip);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
e.printStackTrace();
}
JProgressBar progressBar = new JProgressBar();
JProgressBar myProgressBar = new JProgressBar();
myProgressBar.setUI(new VsnetMetalProgressBarUI());
progressBar.setIndeterminate(true);
progressBar.setString("Percent");
progressBar.setStringPainted(true);
myProgressBar.setIndeterminate(true);
myProgressBar.setString("Percent");
myProgressBar.setStringPainted(true);
JPanel panel = new JPanel(new BorderLayout(5, 5));
panel.add(progressBar, BorderLayout.NORTH);
panel.add(myProgressBar, BorderLayout.SOUTH);
JOptionPane.showMessageDialog(null, panel, "ProgressBars made intutive - [email protected]", JOptionPane.INFORMATION_MESSAGE);
System.exit(0);
}
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