The following code mimics the merge cells effect
on the first column. The first column has multiple line.
//All copyright reserved by www.kidslovepc.com
//No redistribution is allowed without author permmision and a back
link to www.kidslovepc.com
// Example from http://www.kidslovepc.com
//www.kidslovepc.com is not responsible for your data loss or any damage.
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.table.*;
import javax.swing.*;
import java.awt.Color ;
import java.awt.Component;
import java.util.StringTokenizer;
class myCellRenderer extends JTextArea implements TableCellRenderer
{
public Component getTableCellRendererComponent(JTable
table, Object value, boolean isSelected, boolean hasFocus,int
row, int column)
{
if(isSelected)
setBackground(table.getSelectionBackground() );
else
setBackground(Color.white );
//set column height
String stmp;
StringTokenizer st;
int rowHight=table.getRowHeight() +table.getRowMargin()+1;
int fold;
stmp=(String)value;
st=new StringTokenizer (stmp,"\n");
fold=st.countTokens ();
if(table.getRowHeight(row)!=fold*rowHight) /
{
table.setRowHeight(row, fold*rowHight);
}
setLineWrap(true);
setWrapStyleWord(true);
setText(value.toString());
return this;
}
}
public class MergeCells extends JPanel {
private boolean DEBUG = false;
public MergeCells() {
super(new GridLayout(1,0));
String[] columnNames = {"Persons", "Class"};
Object[][] data = {
{"HugoJone \n Sep Dion \n Tom Saw\n Saron Xie",
"Math"},
{"Harry Potter\n Alice Petty",
"Musice"},
{"Tom Sawyer",
"English"},
{"AliceWonder\n Taylor Emo \nJim Setty \n Emi learn ",
"www.kidslovepc.com"}
};
final JTable table = new JTable(data, columnNames);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
int cols = table.getColumnCount();
myCellRenderer mcr=new myCellRenderer ();
TableColumn column;
int i;
//set first column multiple line
column=table.getColumnModel().getColumn(0);
column.setCellRenderer(mcr);
//Create the scroll pane and add the table
to it.
JScrollPane scrollPane = new JScrollPane(table);
//Add the scroll pane to this panel.
add(scrollPane);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
JFrame.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("SimpleTableDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
MergeCells newContentPane = new MergeCells();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}
}
