windows的scrollPane与table头持平，这个功能以前我一直都不直到怎么实现，最近茅舍顿开，时间不充裕，做的还不完善，有兴趣可以看一下。
效果：
代码：
package azure.ui.swing.components.scrollPane;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JViewport;
import javax.swing.UIManager;
import javax.swing.border.EmptyBorder;
/**
* @author Azure
* @version 1.0 31/03/07
*/
public class AzWindowsScrollFrame extends JFrame implements AdjustmentListener {
JScrollBar vScrollBar = new JScrollBar();
JScrollBar hScrollBar = new JScrollBar();
JTable table;
public AzWindowsScrollFrame() {
init();
}
public static void main(String[] args) {
try {
UIManager
.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} catch (Exception e) {
System.err.println("Something went wrong!");
}
AzWindowsScrollFrame sf = new AzWindowsScrollFrame();
sf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
sf.setLocationRelativeTo(null);
sf.setSize(new Dimension(300, 200));
sf.setVisible(true);
}
private void init() {
this.setLayout(new BorderLayout());
Object data[][] = { { "one", "1", "swing" }, { "two", "2", "is" },
{ "three", "3", "very" }, { "four", "4", "nice" },
{ "five", "5", "swing" }, { "six", "6", "is" },
{ "seven", "7", "very" }, { "eight", "8", "nice" },
{ "nine", "9", "swing" }, { "ten", "10", "is" } };
Object headers[] = { "col1", "col2", "col3" };
table = new JTable(data, headers);
table.setPreferredSize(new Dimension(500, 300));
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
JScrollPane scrollPane = new JScrollPane(table);
scrollPane
.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);
scrollPane
.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scrollPane.setBorder(new EmptyBorder(0, 0, 0, 0));
panel.setBorder(new EmptyBorder(0, 0, 0, 0));
panel.add(scrollPane, BorderLayout.CENTER);
JPanel hPanel = new JPanel(new BorderLayout());
hScrollBar.setOrientation(JScrollBar.HORIZONTAL);
int visibleAmount = 100;
hScrollBar.setVisibleAmount(visibleAmount);
hPanel.add(hScrollBar, BorderLayout.CENTER);
JLabel vConerlabel = new JLabel();
vConerlabel.setMinimumSize(new Dimension(15, 10));
vConerlabel.setPreferredSize(new Dimension(15, 10));
vConerlabel.setBorder(new EmptyBorder(0, 0, 0, 0));
hPanel.add(vConerlabel, BorderLayout.EAST);
vScrollBar.addAdjustmentListener(this);
int hVisibleAmount = 60;
vScrollBar.setVisibleAmount(hVisibleAmount);
vScrollBar.setUnitIncrement(60);
vScrollBar.setValueIsAdjusting(true);
vScrollBar.addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent e) {
vScrollBar.setValue(vScrollBar.getValue()
+ e.getWheelRotation() * 60);
}
});
hScrollBar.addAdjustmentListener(this);
hScrollBar.addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent e) {
hScrollBar.setValue(hScrollBar.getValue()
+ e.getWheelRotation() * 60);
}
});
this.add(hPanel, BorderLayout.SOUTH);
this.add(panel, BorderLayout.CENTER);
this.add(vScrollBar, BorderLayout.EAST);
}
public void adjustmentValueChanged(AdjustmentEvent e) {
if (e.getSource() == vScrollBar) {
scrollToTableV(table, e.getValue());
} else if (e.getSource() == hScrollBar) {
scrollToTableH(table, e.getValue());
}
}
public void scrollToTableH(JTable table, int value) {
if (!(table.getParent() instanceof JViewport)) {
return;
}
JViewport viewport = (JViewport) table.getParent();
Rectangle viewRect = viewport.getViewRect();
Rectangle rect = new Rectangle(value * table.getWidth() / 90,
(int) viewRect.getY(), 10, 10);
rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);
viewport.scrollRectToVisible(rect);
}
public void scrollToTableV(JTable table, int value) {
if (!(table.getParent() instanceof JViewport)) {
return;
}
JViewport viewport = (JViewport) table.getParent();
Rectangle viewRect = viewport.getViewRect();
Rectangle rect = new Rectangle((int) viewRect.getX(), value
* table.getHeight() / 90, 10, 10);
rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);
viewport.scrollRectToVisible(rect);
}
}