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Column Border Table Example
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1) */
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.AbstractBorder;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumnModel;
/**
* @version 1.0 3/06/99
*/
public class ColumnBorderTableExample extends JFrame {
public ColumnBorderTableExample() {
super("Column Border Example");
DefaultTableModel dm = new DefaultTableModel(4, 10);
JTable table = new JTable(dm);
table.setIntercellSpacing(new Dimension(0, 0));
Color color = table.getGridColor();
BorderCellRenderer[] renderers = new BorderCellRenderer[6];
renderers[0] = createRenderer(color, new Insets(0, 0, 0, 1));
renderers[1] = createRenderer(color, new Insets(0, 1, 0, 1));
renderers[2] = createRenderer(color, new Insets(0, 1, 0, 2));
renderers[3] = createRenderer(color, new Insets(0, 2, 0, 2));
renderers[4] = createRenderer(color, new Insets(0, 2, 0, 0));
renderers[5] = createRenderer(Color.red, new Insets(0, 1, 1, 1));
TableColumnModel model = table.getColumnModel();
model.getColumn(1).setCellRenderer(renderers[0]);
model.getColumn(2).setCellRenderer(renderers[0]);
model.getColumn(3).setCellRenderer(renderers[0]);
model.getColumn(4).setCellRenderer(renderers[1]);
model.getColumn(5).setCellRenderer(renderers[2]);
model.getColumn(6).setCellRenderer(renderers[3]);
model.getColumn(7).setCellRenderer(renderers[4]);
model.getColumn(8).setCellRenderer(renderers[5]);
JScrollPane scroll = new JScrollPane(table);
getContentPane().add(scroll, BorderLayout.CENTER);
}
public static void main(String[] args) {
ColumnBorderTableExample frame = new ColumnBorderTableExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setSize(300, 120);
frame.setVisible(true);
}
private static BorderCellRenderer createRenderer(Color color, Insets insets) {
BorderCellRenderer renderer = new BorderCellRenderer();
renderer.setColumnBorder(new LinesBorder(color, insets));
return renderer;
}
}
class BorderCellRenderer extends JLabel implements TableCellRenderer {
protected Border noFocusBorder;
protected Border columnBorder;
public BorderCellRenderer() {
noFocusBorder = new EmptyBorder(1, 2, 1, 2);
setOpaque(true);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
}
setFont(table.getFont());
if (hasFocus) {
setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
if (table.isCellEditable(row, column)) {
setForeground(UIManager.getColor("Table.focusCellForeground"));
setBackground(UIManager.getColor("Table.focusCellBackground"));
}
} else {
if (value instanceof CellBorder) {
Border border = ((CellBorder) value).getBorder();
setBorder(border);
} else {
if (columnBorder != null) {
setBorder(columnBorder);
} else {
setBorder(noFocusBorder);
}
}
}
setText((value == null) ? "" : value.toString());
return this;
}
public void setColumnBorder(Border border) {
columnBorder = border;
}
public Border getColumnBorder() {
return columnBorder;
}
}
interface CellBorder {
public Border getBorder();
public Border getBorder(int row, int column);
public void setBorder(Border border);
public void setBorder(Border border, int row, int column);
}
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);
}
}
}
