Cell 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.GridLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
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.border.TitledBorder;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
/**
* @version 1.0 3/06/99
*/
public class CellBorderTableExample extends JFrame {
public CellBorderTableExample() {
super("Cell Border Example");
final Color color = UIManager.getColor("Table.gridColor");
DefaultTableModel dm = new DefaultTableModel(12, 6) {
public void setValueAt(Object obj, int row, int col) {
if (obj instanceof MyData) {
super.setValueAt(obj, row, col);
} else {
MyData myData = null;
Object oldObject = getValueAt(row, col);
if (oldObject == null) {
myData = new MyData(obj, new LinesBorder(color, 0));
} else if (oldObject instanceof MyData) {
myData = (MyData) oldObject;
} else {
System.out.println("error");
return;
}
myData.setObject(obj);
super.setValueAt(myData, row, col);
}
}
};
JTable table = new JTable(dm);
table.setIntercellSpacing(new Dimension(0, 0));
table.setCellSelectionEnabled(true);
table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
table.setDefaultRenderer(Object.class, new BorderCellRenderer());
JScrollPane scroll = new JScrollPane(table);
ThicknessPanel thicknessPanel = new ThicknessPanel();
Box box = new Box(BoxLayout.Y_AXIS);
box.add(thicknessPanel);
box.add(new ButtonPanel(table, thicknessPanel));
getContentPane().add(scroll, BorderLayout.CENTER);
getContentPane().add(box, BorderLayout.EAST);
}
public static void main(String[] args) {
CellBorderTableExample frame = new CellBorderTableExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setSize(400, 240);
frame.setVisible(true);
}
class ThicknessPanel extends JPanel {
JComboBox[] combos;
ThicknessPanel() {
String[] str = { "top", "left", "bottom", "right" };
int n = str.length;
setLayout(new GridLayout(n, 2));
setBorder(new TitledBorder("Thickness"));
combos = new JComboBox[n];
for (int i = 0; i < n; i++) {
combos[i] = new JComboBox(new Object[] { "0", "1", "2", "3" });
add(new JLabel(str[i]));
add(combos[i]);
}
}
public Insets getThickness() {
Insets insets = new Insets(0, 0, 0, 0);
insets.top = combos[0].getSelectedIndex();
insets.left = combos[1].getSelectedIndex();
insets.bottom = combos[2].getSelectedIndex();
insets.right = combos[3].getSelectedIndex();
return insets;
}
}
class ButtonPanel extends JPanel {
JTable table;
ThicknessPanel thicknessPanel;
Color color = UIManager.getColor("Table.gridColor");
ButtonPanel(JTable table, ThicknessPanel thicknessPanel) {
this.table = table;
this.thicknessPanel = thicknessPanel;
setLayout(new GridLayout(3, 1));
setBorder(new TitledBorder("Append Lines"));
final JCheckBox oneBlock = new JCheckBox("Block");
JButton b_and = new JButton("REPLACE");
JButton b_or = new JButton("OR");
add(oneBlock);
add(b_and);
add(b_or);
b_and.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setCellBorder(true, oneBlock.isSelected());
}
});
b_or.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setCellBorder(false, oneBlock.isSelected());
}
});
}
private void setCellBorder(boolean isReplace, boolean isBlock) {
boolean isTop, isLeft, isBottom, isRight;
Insets insets = thicknessPanel.getThickness();
int[] columns = table.getSelectedColumns();
int[] rows = table.getSelectedRows();
int rowMax = rows.length;
int columnMax = columns.length;
for (int i = 0; i < rowMax; i++) {
int row = rows[i];
isTop = (i == 0) ? true : false;
isBottom = (i == rowMax - 1) ? true : false;
for (int j = 0; j < columnMax; j++) {
int column = columns[j];
isLeft = (j == 0) ? true : false;
isRight = (j == columnMax - 1) ? true : false;
MyData myData = (MyData) table.getValueAt(row, column);
if (myData == null) {
myData = new MyData("", new LinesBorder(color, 0));
}
LinesBorder border = (LinesBorder) myData.getBorder();
if (isBlock) {
Insets tmp = new Insets(0, 0, 0, 0);
if (isTop)
tmp.top = Math.max(tmp.top, insets.top);
if (isLeft)
tmp.left = Math.max(tmp.left, insets.left);
if (isBottom)
tmp.bottom = Math.max(tmp.bottom, insets.bottom);
if (isRight)
tmp.right = Math.max(tmp.right, insets.right);
border.append(tmp, isReplace);
} else {
border.append(insets, isReplace);
}
table.setValueAt(myData, row, column);
}
}
table.clearSelection();
table.revalidate();
table.repaint();
}
}
class MyData implements CellBorder {
private Border border;
private Object obj;
public MyData(Object obj, Border border) {
this.obj = obj;
this.border = border;
}
public void setObject(Object obj) {
this.obj = obj;
}
public String toString() {
return obj.toString();
}
// CellBorder
public void setBorder(Border border) {
this.border = border;
}
public Border getBorder() {
return border;
}
public void setBorder(Border border, int row, int col) {
}
public Border getBorder(int row, int col) {
return null;
}
}
}
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);
}
}
}
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