/
MainPanel.java
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/
MainPanel.java
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// -*- mode:java; encoding:utf-8 -*-
// vim:set fileencoding=utf-8:
// @homepage@
package example;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
String[] columnNames = {"String", "Integer", "Boolean"};
Object[][] data = {
{"aaa", 12, true}, {"bbb", 5, false}, {"ccc", 92, true}, {"ddd", 0, false}
};
TableModel model = new DefaultTableModel(data, columnNames) {
@Override public Class<?> getColumnClass(int column) {
return getValueAt(0, column).getClass();
}
@Override public boolean isCellEditable(int row, int column) {
return column != 0;
}
};
JTable table = new JTable(model) {
private transient RowHeaderRenderer handler;
@Override public void updateUI() {
getColumnModel().getColumn(0).setCellRenderer(null);
removeMouseListener(handler);
removeMouseMotionListener(handler);
super.updateUI();
handler = new RowHeaderRenderer();
getColumnModel().getColumn(0).setCellRenderer(handler);
addMouseListener(handler);
addMouseMotionListener(handler);
}
};
table.setAutoCreateRowSorter(true);
table.setRowHeight(24);
// table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// table.getTableHeader().setReorderingAllowed(false);
add(new JScrollPane(table));
setPreferredSize(new Dimension(320, 240));
}
public static void main(String[] args) {
EventQueue.invokeLater(MainPanel::createAndShowGui);
}
private static void createAndShowGui() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (UnsupportedLookAndFeelException ignored) {
Toolkit.getDefaultToolkit().beep();
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
ex.printStackTrace();
return;
}
JFrame frame = new JFrame("@title@");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().add(new MainPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
class RowHeaderRenderer extends MouseAdapter implements TableCellRenderer {
private final JLabel renderer = new JLabel();
private int rollOverRowIndex = -1;
@Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
TableCellRenderer tcr = table.getTableHeader().getDefaultRenderer();
boolean focus = row == rollOverRowIndex; // || hasFocus;
Component c = tcr.getTableCellRendererComponent(table, value, isSelected, focus, -1, -1);
if (c instanceof JComponent && tcr.getClass().getName().contains("XPDefaultRenderer")) {
((JComponent) c).setOpaque(!focus);
renderer.setIcon(new ComponentIcon(c));
c = renderer;
}
return c;
}
// @Override public void mouseMoved(MouseEvent e) {
// JTable table = (JTable) e.getSource();
// Point pt = e.getPoint();
// int column = table.convertColumnIndexToModel(table.columnAtPoint(pt));
// rollOverRowIndex = column == 0 ? table.rowAtPoint(pt) : -1;
// table.repaint();
// }
// @Override public void mouseExited(MouseEvent e) {
// JTable table = (JTable) e.getSource();
// rollOverRowIndex = -1;
// table.repaint();
// }
@Override public void mouseMoved(MouseEvent e) {
JTable table = (JTable) e.getComponent();
Point pt = e.getPoint();
int row = table.rowAtPoint(pt);
int col = table.columnAtPoint(pt);
int prevRow = rollOverRowIndex;
int column = table.convertColumnIndexToModel(col);
rollOverRowIndex = column == 0 ? row : -1;
Rectangle repaintRect;
if (column == 0 && row != prevRow) {
if (rollOverRowIndex >= 0) {
Rectangle r = table.getCellRect(rollOverRowIndex, col, false);
repaintRect = prevRow >= 0 ? r.union(table.getCellRect(prevRow, col, false)) : r;
} else {
repaintRect = table.getCellRect(prevRow, col, false);
}
} else {
repaintRect = table.getCellRect(prevRow, 0, false);
}
table.repaint(repaintRect);
}
@Override public void mouseExited(MouseEvent e) {
JTable table = (JTable) e.getComponent();
Point pt = e.getPoint();
int col = table.columnAtPoint(pt);
int column = table.convertColumnIndexToModel(col);
if (column != 0) {
return;
}
if (rollOverRowIndex >= 0) {
table.repaint(table.getCellRect(rollOverRowIndex, col, false));
}
rollOverRowIndex = -1;
}
}
class ComponentIcon implements Icon {
private final Component cmp;
protected ComponentIcon(Component cmp) {
this.cmp = cmp;
}
@Override public void paintIcon(Component c, Graphics g, int x, int y) {
SwingUtilities.paintComponent(g, cmp, c.getParent(), x, y, getIconWidth(), getIconHeight());
}
@Override public int getIconWidth() {
return 4000; // Short.MAX_VALUE;
}
@Override public int getIconHeight() {
return cmp.getPreferredSize().height + 4; // XXX: +4 for Windows 7
}
}