我在运行JXBusyLabel（http://developerlife.com/tutorials/?p=248）这个例子时，jdk中没有LinearGradientPaint这个类，该如何解决？
部分代码：
import org.jdesktop.swingx.*;
import org.jdesktop.swingx.icon.*;
import org.jdesktop.swingx.painter.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
/**
* BusyLabelExample
*
* @author Nazmul Idris
* @version 1.0
* @since Feb 2, 2008, 2:43:30 PM
*/
public class BusyLabelExample {
/** simple main driver for this class */
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new BusyLabelExample();
}
});
}
/** creates a JFrame and calls {@link #doInit} to create a JXPanel and adds the panel to this frame. */
public BusyLabelExample() {
JFrame frame = new JFrame("JXBusyLabel Example");
// add the panel to this frame
frame.add(doInit());
// when you close the frame, the app exits
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// center the frame and show it
frame.setLocationRelativeTo(null);
frame.pack();
frame.setVisible(true);
}
/** creates a JXLabel and attaches a painter to it. */
private Component doInit() {
JXPanel panel = new JXPanel();
panel.setLayout(new BorderLayout());
// create a busylabel
final JXBusyLabel busylabel1 = createSimpleBusyLabel();
final JXBusyLabel busylabel2 = createComplexBusyLabel();
busylabel1.setEnabled(false);
busylabel2.setEnabled(false);
// create a label
final JXLabel label = createLabel();
// create a button
JButton button = new JButton("start/stop");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!busylabel1.isEnabled()){
busylabel1.setEnabled(true);
busylabel2.setEnabled(true);
}
if (busylabel1.isBusy()) {
label.setText("BusyLabel stopped");
busylabel1.setBusy(false);
busylabel2.setBusy(false);
}
else {
label.setText("BusyLabel started");
busylabel1.setBusy(true);
busylabel2.setBusy(true);
}
}
});
// set the transparency of the JXPanel to 50% transparent
panel.setAlpha(0.7f);
// add the label, busylables, and button to the panel
panel.add(label, BorderLayout.NORTH);
JXPanel busylabels = new JXPanel(new FlowLayout(FlowLayout.CENTER, 40, 5));
busylabels.add(busylabel1);
busylabels.add(busylabel2);
panel.add(busylabels, BorderLayout.CENTER);
panel.add(button, BorderLayout.SOUTH);
panel.setPreferredSize(new Dimension(250, 125));
return panel;
}
public JXBusyLabel createSimpleBusyLabel(){
JXBusyLabel label = new JXBusyLabel();
label.setToolTipText("simple busy label");
return label;
}
public JXBusyLabel createComplexBusyLabel() {
// this will not work in the 0.9.1 release of SwingX (need later builds)
JXBusyLabel label = new JXBusyLabel(new Dimension(38, 38));
BusyPainter painter = new BusyPainter(
new Rectangle2D.Float(0, 0, 8.0f, 8.0f),
new Rectangle2D.Float(5.5f, 5.5f, 27.0f, 27.0f));
painter.setTrailLength(4);
painter.setPoints(8);
painter.setFrame(-1);
painter.setBaseColor(Colors.LightBlue.color());
painter.setHighlightColor(Colors.Orange.color());
label.setPreferredSize(new Dimension(38, 38));
label.setIcon(new EmptyIcon(38, 38));
label.setBusyPainter(painter);
label.setToolTipText("complex busy label");
return label;
}
public JXLabel createLabel() {
JXLabel label = new JXLabel();
label.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
label.setFont(new Font("Segoe UI", Font.BOLD, 14));
label.setText("<html>BusyLabel Example...<br>click start/stop button</html>");
label.setIcon(Images.NetworkDisconnected.getIcon(40, 40));
label.setHorizontalAlignment(JXLabel.LEFT);
label.setBackgroundPainter(getPainter());
return label;
}
/** this painter draws a gradient fill */
public Painter getPainter() {
int width = 100;
int height = 100;
Colors color1 = Colors.White.color(0.5f);
Colors color2 = Colors.Gray.color(0.5f);
LinearGradientPaint gradientPaint =
new LinearGradientPaint(0.0f, 0.0f, width, height,
new float[]{0.0f, 1.0f},
new Colors[]{color1, color2});
MattePainter mattePainter = new MattePainter(gradientPaint);
return mattePainter;
}
}//end class BusyLabelExample
部分代码：
import org.jdesktop.swingx.*;
import org.jdesktop.swingx.icon.*;
import org.jdesktop.swingx.painter.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
/**
* BusyLabelExample
*
* @author Nazmul Idris
* @version 1.0
* @since Feb 2, 2008, 2:43:30 PM
*/
public class BusyLabelExample {
/** simple main driver for this class */
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new BusyLabelExample();
}
});
}
/** creates a JFrame and calls {@link #doInit} to create a JXPanel and adds the panel to this frame. */
public BusyLabelExample() {
JFrame frame = new JFrame("JXBusyLabel Example");
// add the panel to this frame
frame.add(doInit());
// when you close the frame, the app exits
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// center the frame and show it
frame.setLocationRelativeTo(null);
frame.pack();
frame.setVisible(true);
}
/** creates a JXLabel and attaches a painter to it. */
private Component doInit() {
JXPanel panel = new JXPanel();
panel.setLayout(new BorderLayout());
// create a busylabel
final JXBusyLabel busylabel1 = createSimpleBusyLabel();
final JXBusyLabel busylabel2 = createComplexBusyLabel();
busylabel1.setEnabled(false);
busylabel2.setEnabled(false);
// create a label
final JXLabel label = createLabel();
// create a button
JButton button = new JButton("start/stop");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!busylabel1.isEnabled()){
busylabel1.setEnabled(true);
busylabel2.setEnabled(true);
}
if (busylabel1.isBusy()) {
label.setText("BusyLabel stopped");
busylabel1.setBusy(false);
busylabel2.setBusy(false);
}
else {
label.setText("BusyLabel started");
busylabel1.setBusy(true);
busylabel2.setBusy(true);
}
}
});
// set the transparency of the JXPanel to 50% transparent
panel.setAlpha(0.7f);
// add the label, busylables, and button to the panel
panel.add(label, BorderLayout.NORTH);
JXPanel busylabels = new JXPanel(new FlowLayout(FlowLayout.CENTER, 40, 5));
busylabels.add(busylabel1);
busylabels.add(busylabel2);
panel.add(busylabels, BorderLayout.CENTER);
panel.add(button, BorderLayout.SOUTH);
panel.setPreferredSize(new Dimension(250, 125));
return panel;
}
public JXBusyLabel createSimpleBusyLabel(){
JXBusyLabel label = new JXBusyLabel();
label.setToolTipText("simple busy label");
return label;
}
public JXBusyLabel createComplexBusyLabel() {
// this will not work in the 0.9.1 release of SwingX (need later builds)
JXBusyLabel label = new JXBusyLabel(new Dimension(38, 38));
BusyPainter painter = new BusyPainter(
new Rectangle2D.Float(0, 0, 8.0f, 8.0f),
new Rectangle2D.Float(5.5f, 5.5f, 27.0f, 27.0f));
painter.setTrailLength(4);
painter.setPoints(8);
painter.setFrame(-1);
painter.setBaseColor(Colors.LightBlue.color());
painter.setHighlightColor(Colors.Orange.color());
label.setPreferredSize(new Dimension(38, 38));
label.setIcon(new EmptyIcon(38, 38));
label.setBusyPainter(painter);
label.setToolTipText("complex busy label");
return label;
}
public JXLabel createLabel() {
JXLabel label = new JXLabel();
label.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
label.setFont(new Font("Segoe UI", Font.BOLD, 14));
label.setText("<html>BusyLabel Example...<br>click start/stop button</html>");
label.setIcon(Images.NetworkDisconnected.getIcon(40, 40));
label.setHorizontalAlignment(JXLabel.LEFT);
label.setBackgroundPainter(getPainter());
return label;
}
/** this painter draws a gradient fill */
public Painter getPainter() {
int width = 100;
int height = 100;
Colors color1 = Colors.White.color(0.5f);
Colors color2 = Colors.Gray.color(0.5f);
LinearGradientPaint gradientPaint =
new LinearGradientPaint(0.0f, 0.0f, width, height,
new float[]{0.0f, 1.0f},
new Colors[]{color1, color2});
MattePainter mattePainter = new MattePainter(gradientPaint);
return mattePainter;
}
}//end class BusyLabelExample
