CODEWITHSUNDEEP
javaswingjtable
jkeuhlen
jkeuhlen

Reputation: 4517

Select only the cell but highlight the entire row in a table

In my table I have set 

table.setCellSelectionEnabled(true);

so that I can have a user select an individual cell and use ctrl-c to copy/paste the contents of the cell elsewhere. However, I would also like for the entire row to be highlighted (like is done with only table.setRowSelectionAllowed(true)). Is there an easy way to accomplish this or does it require a custom renderer for the table?

Upvotes: 0

Views: 900

Answers (1)

Madhan
Madhan

Reputation: 5818

As you want only selected cell to be copied to clipboard.I have done this.This will copy the selected cell content [on Ctrl+C] only to clipboard and at the same time whole row is highlighted as well

I've implemented Copy only you can implement cut and paste if you want.

import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.StringSelection;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
import javax.swing.JTable;

public class TableTest extends JFrame {
JTable table;

public TableTest() {
    table = new JTable();
    this.add(table);
    //Adding table with four columns and rows
    table.setModel(new javax.swing.table.DefaultTableModel(
            new Object[][]{
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            },
            new String[]{
                "Title 1", "Title 2", "Title 3", "Title 4"
            }
    ));
    //Adding table listener for Copy Ctrl+C
    addTableListener();
}

private void addTableListener() {
    table.addKeyListener(new KeyAdapter() {
        @Override
        public void keyReleased(KeyEvent e) {
            if (e.isControlDown()) {
                if (e.getKeyCode() == KeyEvent.VK_C) {
                    copy();
                }
            }
        }
    });
}

private void cancelEditing() {
    if (table.getCellEditor() != null) {
        table.getCellEditor().cancelCellEditing();
    }
}

public void copy() {
    cancelEditing();//To cancel editing if the cell is in edited mode
    int row = table.getSelectedRow();
    int col = table.getSelectedColumn();
    if (row != -1 && col != -1) {
        Object value = table.getValueAt(row, col);
        value = value != null ? value : "";
        StringSelection stringSelection = new StringSelection(value.toString());
        Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
        clipboard.setContents(stringSelection, stringSelection);
    }
}

public static void main(String[] args) {
    TableTest test = new TableTest();
    test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    test.pack();
    test.setLocationRelativeTo(null);
    test.setVisible(true);
}
}

Upvotes: 2

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