Tabelle eine JList anziegen

[Gast2]

Hallo,

ich möchte gern eine JList in einer Tabelle anzeigen lassen... doch es wird leider keine JList angezeigt

	class JComboListRenderer extends JList implements TableCellRenderer {

		public Component getTableCellRendererComponent(JTable table,
				Object value, boolean isSelected, boolean hasFocus, int row,
				int column) {

		    if (isSelected) {
	            this.setBackground(table.getSelectionBackground());
	            this.setForeground(table.getSelectionForeground());
	        } else {
	            this.setBackground(table.getBackground());
	            this.setForeground(table.getForeground());
	        } 
			final List<Object> list = (List<Object>) value;
			setModel(  new AbstractListModel() {
                public int getSize() { return list.size(); }
                public Object getElementAt(int i) { return list.get(i); }
            });

			return this;
		}
	}

 

[Ebenius]

Der renderer sieht auf den ersten Blick gut aus. Poste doch mal ein einfaches Testprogramm mit Tabelle. Dort liegt wahrscheinlich der Fehler.

Wie hast Du denn den Renderer an die Tabelle gehangen? Und wie sieht Dein TableModel aus?

Grüße, Ebenius

 

[Gast2]

hier mal ein test programm

import java.awt.Component;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

import javax.swing.AbstractListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;



public class TestTable extends JFrame
{
	public TestTable()
	{
		super("TesTable");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Vector<Object> col  = new Vector<Object>();
		col.add("col1");
		col.add("list");
		
		Vector<Object> data  = new Vector<Object>();
		
		Vector<Object> row  = new Vector<Object>();
		
		List<Object> list = new ArrayList<Object>();
		
		for(int i = 0; i < 10 ;i++)
		{
			list.add(String.valueOf(i));
		}
		
		row.add(list);
		row.add(list);
		data.add(row);
		
		add(new JScrollPane(new CTable(data, col)));
		pack();
		setVisible(true);
	}
	
	class CTable extends JTable {

		public CTable(Vector<Object> rowData, Vector<Object> colNames) {
			super(new DefaultTableModel(rowData, colNames));
			getTableHeader().setReorderingAllowed(false);
			setDefaultRenderer(Object.class, new JComboListRenderer());
		}
	}
	
	class JComboListRenderer extends JList implements TableCellRenderer {

		public JComboListRenderer() {
			setOpaque(true);
			setEnabled(true);
		}

		public Component getTableCellRendererComponent(JTable table,
				Object value, boolean isSelected, boolean hasFocus, int row,
				int column) {

		    if (isSelected) {
	            this.setBackground(table.getSelectionBackground());
	            this.setForeground(table.getSelectionForeground());
	        } else {
	            this.setBackground(table.getBackground());
	            this.setForeground(table.getForeground());
	        } 
		    
		    if (value instanceof List)
		    {
				final List<Object> list = (List<Object>) value;
				setModel(  new AbstractListModel() {
	                public int getSize() { return list.size(); }
	                public Object getElementAt(int i) { return list.get(i); }
	            });
		    }
	

			return this;
		}
	}
	
	public static void main(String[] args) {
		new TestTable();
	}
}

 

[André Uhres]

Versuch's mal so:

public class TestTable extends JFrame {
    private JTable table;
    public TestTable() {
        super("TestTable");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Vector<Object> col = new Vector<Object>();
        col.add("col1");
        col.add("list");
        Vector<Object> data = new Vector<Object>();
        Vector<Object> row = new Vector<Object>();
        List<Object> list = new ArrayList<Object>();
        for (int i = 0; i < 10; i++) {
            list.add(String.valueOf(i));
        }
        row.add(new JList(new Vector(list)));
        row.add(new JList(new Vector(list)));
        data.add(row);
        table = new JTable(new DefaultTableModel(data, col));
        table.getTableHeader().setReorderingAllowed(false);
        table.setDefaultRenderer(Object.class, new JListCellRenderer());
        table.setDefaultEditor(Object.class, new JListCellEditor());
        table.setRowHeight(160);
        add(new JScrollPane(table));
        pack();
        setVisible(true);
    }
    public static void main(final String[] args) {
        Runnable gui = new Runnable() {
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (Exception ex) {
                }
                new TestTable().setVisible(true);
            }
        };
        //GUI must start on EventDispatchThread:
        SwingUtilities.invokeLater(gui);
    }
}
class JListCellRenderer implements TableCellRenderer {
    public Component getTableCellRendererComponent(final JTable table,
            final Object value, final boolean isSelected,
            final boolean hasFocus, final int row, final int column) {
        return (JList) value;
    }
}
class JListCellEditor extends AbstractCellEditor implements TableCellEditor {
    private JList lst;
    public Object getCellEditorValue() {
        return lst;
    }
    public Component getTableCellEditorComponent(final JTable table,
            final Object value, final boolean isSelected,
            final int row, final int column) {
        lst = (JList) value;
        return lst;
    }
}

 

[Gast2]

danke =)