Hide Column Table Example
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1.1beta2) */
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.SystemColor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Stack;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ScrollPaneLayout;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.AbstractBorder;
import javax.swing.plaf.basic.BasicArrowButton;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
/**
* @version 1.0 05/31/99
*/
public class HideColumnTableExample extends JFrame {
public HideColumnTableExample() {
super("HideColumnTable Example");
JTable table = new JTable(5, 7);
ColumnButtonScrollPane pane = new ColumnButtonScrollPane(table);
getContentPane().add(pane);
}
public static void main(String[] args) {
HideColumnTableExample frame = new HideColumnTableExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setSize(400, 100);
frame.setVisible(true);
}
}
class ColumnButtonScrollPane extends JScrollPane {
Component columnButton;
public ColumnButtonScrollPane(JTable table) {
super(table);
TableColumnModel cm = table.getColumnModel();
LimitedTableHeader header = new LimitedTableHeader(cm);
table.setTableHeader(header);
columnButton = createUpperCorner(header);
setCorner(UPPER_RIGHT_CORNER, columnButton);
setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_ALWAYS);
ColumnButtonScrollPaneLayout layout = new ColumnButtonScrollPaneLayout();
setLayout(layout);
layout.syncWithScrollPane(this);
}
protected Component createUpperCorner(JTableHeader header) {
ColumnButton corner = new ColumnButton(header);
return corner;
}
public class LimitedTableHeader extends JTableHeader {
public LimitedTableHeader(TableColumnModel cm) {
super(cm);
}
// actually, this is a not complete way. but easy one.
// you can see last column painted wider, short time :)
// If you don't like this kind cheap fake,
// you have to overwrite the paint method in UI class.
public void paintComponent(Graphics g) {
super.paintComponent(g);
columnButton.repaint();
}
}
public class ColumnButton extends JPanel {
JTable table;
TableColumnModel cm;
JButton revealButton;
JButton hideButton;
Stack stack;
public ColumnButton(JTableHeader header) {
setLayout(new GridLayout(1, 2));
setBorder(new LinesBorder(SystemColor.controlShadow, new Insets(0,
1, 0, 0)));
stack = new Stack();
table = header.getTable();
cm = table.getColumnModel();
revealButton = createButton(header, SwingConstants.WEST);
hideButton = createButton(header, SwingConstants.EAST);
add(revealButton);
add(hideButton);
revealButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
TableColumn column = (TableColumn) stack.pop();
cm.addColumn(column);
if (stack.empty()) {
revealButton.setEnabled(false);
}
hideButton.setEnabled(true);
table.sizeColumnsToFit(-1);
}
});
hideButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
int n = cm.getColumnCount();
TableColumn column = cm.getColumn(n - 1);
stack.push(column);
cm.removeColumn(column);
if (n < 3) {
hideButton.setEnabled(false);
}
revealButton.setEnabled(true);
table.sizeColumnsToFit(-1);
}
});
if (1 < cm.getColumnCount()) {
hideButton.setEnabled(true);
} else {
hideButton.setEnabled(false);
}
revealButton.setEnabled(false);
}
protected JButton createButton(JTableHeader header, int direction) {
//int iconHeight = header.getPreferredSize().height - 6;
int iconHeight = 8;
JButton button = new JButton();
button.setIcon(new ArrowIcon(iconHeight, direction, true));
button.setDisabledIcon(new ArrowIcon(iconHeight, direction, false));
button.setRequestFocusEnabled(false);
button.setForeground(header.getForeground());
button.setBackground(header.getBackground());
button.setBorder(UIManager.getBorder("TableHeader.cellBorder"));
return button;
}
}
}
class ColumnButtonScrollPaneLayout extends ScrollPaneLayout {
public ColumnButtonScrollPaneLayout() {
super.setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_ALWAYS);
}
public void setVerticalScrollBarPolicy(int x) {
// VERTICAL_SCROLLBAR_ALWAYS
super.setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_ALWAYS);
}
public void layoutContainer(Container parent) {
super.layoutContainer(parent);
if ((colHead == null) || (!colHead.isVisible()) || (upperRight == null)
|| (vsb == null)) {
return;
}
Rectangle vsbR = new Rectangle(0, 0, 0, 0);
vsbR = vsb.getBounds(vsbR);
Rectangle colHeadR = new Rectangle(0, 0, 0, 0);
colHeadR = colHead.getBounds(colHeadR);
colHeadR.width -= vsbR.width;
colHead.getBounds(colHeadR);
Rectangle upperRightR = upperRight.getBounds();
upperRightR.x -= vsbR.width;
upperRightR.width += vsbR.width + 1;
upperRight.setBounds(upperRightR);
}
}
class LinesBorder extends AbstractBorder implements SwingConstants {
protected int northThickness;
protected int southThickness;
protected int eastThickness;
protected int westThickness;
protected Color northColor;
protected Color southColor;
protected Color eastColor;
protected Color westColor;
public LinesBorder(Color color) {
this(color, 1);
}
public LinesBorder(Color color, int thickness) {
setColor(color);
setThickness(thickness);
}
public LinesBorder(Color color, Insets insets) {
setColor(color);
setThickness(insets);
}
public void paintBorder(Component c, Graphics g, int x, int y, int width,
int height) {
Color oldColor = g.getColor();
g.setColor(northColor);
for (int i = 0; i < northThickness; i++) {
g.drawLine(x, y + i, x + width - 1, y + i);
}
g.setColor(southColor);
for (int i = 0; i < southThickness; i++) {
g
.drawLine(x, y + height - i - 1, x + width - 1, y + height
- i - 1);
}
g.setColor(eastColor);
for (int i = 0; i < westThickness; i++) {
g.drawLine(x + i, y, x + i, y + height - 1);
}
g.setColor(westColor);
for (int i = 0; i < eastThickness; i++) {
g.drawLine(x + width - i - 1, y, x + width - i - 1, y + height - 1);
}
g.setColor(oldColor);
}
public Insets getBorderInsets(Component c) {
return new Insets(northThickness, westThickness, southThickness,
eastThickness);
}
public Insets getBorderInsets(Component c, Insets insets) {
return new Insets(northThickness, westThickness, southThickness,
eastThickness);
}
public boolean isBorderOpaque() {
return true;
}
public void setColor(Color c) {
northColor = c;
southColor = c;
eastColor = c;
westColor = c;
}
public void setColor(Color c, int direction) {
switch (direction) {
case NORTH:
northColor = c;
break;
case SOUTH:
southColor = c;
break;
case EAST:
eastColor = c;
break;
case WEST:
westColor = c;
break;
default:
}
}
public void setThickness(int n) {
northThickness = n;
southThickness = n;
eastThickness = n;
westThickness = n;
}
public void setThickness(Insets insets) {
northThickness = insets.top;
southThickness = insets.bottom;
eastThickness = insets.right;
westThickness = insets.left;
}
public void setThickness(int n, int direction) {
switch (direction) {
case NORTH:
northThickness = n;
break;
case SOUTH:
southThickness = n;
break;
case EAST:
eastThickness = n;
break;
case WEST:
westThickness = n;
break;
default:
}
}
public void append(LinesBorder b, boolean isReplace) {
if (isReplace) {
northThickness = b.northThickness;
southThickness = b.southThickness;
eastThickness = b.eastThickness;
westThickness = b.westThickness;
} else {
northThickness = Math.max(northThickness, b.northThickness);
southThickness = Math.max(southThickness, b.southThickness);
eastThickness = Math.max(eastThickness, b.eastThickness);
westThickness = Math.max(westThickness, b.westThickness);
}
}
public void append(Insets insets, boolean isReplace) {
if (isReplace) {
northThickness = insets.top;
southThickness = insets.bottom;
eastThickness = insets.right;
westThickness = insets.left;
} else {
northThickness = Math.max(northThickness, insets.top);
southThickness = Math.max(southThickness, insets.bottom);
eastThickness = Math.max(eastThickness, insets.right);
westThickness = Math.max(westThickness, insets.left);
}
}
}
class ArrowIcon implements Icon, SwingConstants {
private static final int DEFAULT_SIZE = 11;
//private static final int DEFAULT_SIZE = 5;
private int size;
private int iconSize;
private int direction;
private boolean isEnabled;
private BasicArrowButton iconRenderer;
public ArrowIcon(int direction, boolean isPressedView) {
this(DEFAULT_SIZE, direction, isPressedView);
}
public ArrowIcon(int iconSize, int direction, boolean isEnabled) {
this.size = iconSize / 2;
this.iconSize = iconSize;
this.direction = direction;
this.isEnabled = isEnabled;
iconRenderer = new BasicArrowButton(direction);
}
public void paintIcon(Component c, Graphics g, int x, int y) {
iconRenderer.paintTriangle(g, x, y, size, direction, isEnabled);
}
public int getIconWidth() {
//int retCode;
switch (direction) {
case NORTH:
case SOUTH:
return iconSize;
case EAST:
case WEST:
return size;
}
return iconSize;
}
public int getIconHeight() {
switch (direction) {
case NORTH:
case SOUTH:
return size;
case EAST:
case WEST:
return iconSize;
}
return size;
}
}
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