Wie man eine JTable-Zelle (link) anklickbar

Können Sie entweder eine TableCellEditor deren isCellEditable Methode könnte verwendet werden, zur Aktivierung auf einem einzigen Mausklick. Ehrlich gesagt, ist das nur chaotisch.

Oder Sie befestigen konnte ein MouseListener in die Tabelle direkt und monitor für die mouseClicked Veranstaltung.

Auf die geklickt Veranstaltung, die Sie benötigen könnten, um getSelectedColumn und getSelectedRow, um zu bestimmen, wenn Sie geklickt haben auf die Spalte, die Sie wollen, und bekommen Sie einen link mit dem Wert aus der ausgewählten Zelle mit getValueAt

Werden Sie brauchen, um zu berücksichtigen, dass die Tabelle sortiert werden oder die Spalten sind nicht mehr in der Reihenfolge, die Sie begonnen, Ihnen in (der Benutzer kann verschoben).

Dann müssen Sie convertColumnIndexToView und convertRowIndexToModel

Einfach 😀

InformationsquelleAutor MadProgrammer

Ich gelöst hinzufügen einer Schaltfläche in die Zellen anklickbar, ich folgte diesem tutorial Schaltfläche Tabelle Spalte von Rob Camick:

String[] columnNames = {"First Name", "Last Name", ""};
Object[][] data =
{
    {"Homer", "Simpson", "delete Homer"},
    {"Madge", "Simpson", "delete Madge"},
    {"Bart",  "Simpson", "delete Bart"},
    {"Lisa",  "Simpson", "delete Lisa"},
};

DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable( model );

Dann:

Action delete = new AbstractAction()
{
    public void actionPerformed(ActionEvent e)
    {
        JTable table = (JTable)e.getSource();
        int modelRow = Integer.valueOf( e.getActionCommand() );
        ((DefaultTableModel)table.getModel()).removeRow(modelRow);
    }
};

ButtonColumn buttonColumn = new ButtonColumn(table, delete, 2);
buttonColumn.setMnemonic(KeyEvent.VK_D);

Wo ButtonColumn Klasse:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;

/**
 *  The ButtonColumn class provides a renderer and an editor that looks like a
 *  JButton. The renderer and editor will then be used for a specified column
 *  in the table. The TableModel will contain the String to be displayed on
 *  the button.
 *
 *  The button can be invoked by a mouse click or by pressing the space bar
 *  when the cell has focus. Optionally a mnemonic can be set to invoke the
 *  button. When the button is invoked the provided Action is invoked. The
 *  source of the Action will be the table. The action command will contain
 *  the model row number of the button that was clicked.
 *
 */
public class ButtonColumn extends AbstractCellEditor
    implements TableCellRenderer, TableCellEditor, ActionListener, MouseListener
{
    private JTable table;
    private Action action;
    private int mnemonic;
    private Border originalBorder;
    private Border focusBorder;

    private JButton renderButton;
    private JButton editButton;
    private Object editorValue;
    private boolean isButtonColumnEditor;

    /**
     *  Create the ButtonColumn to be used as a renderer and editor. The
     *  renderer and editor will automatically be installed on the TableColumn
     *  of the specified column.
     *
     *  @param table the table containing the button renderer/editor
     *  @param action the Action to be invoked when the button is invoked
     *  @param column the column to which the button renderer/editor is added
     */
    public ButtonColumn(JTable table, Action action, int column)
    {
        this.table = table;
        this.action = action;

        renderButton = new JButton();
        editButton = new JButton();
        editButton.setFocusPainted( false );
        editButton.addActionListener( this );
        originalBorder = editButton.getBorder();
        setFocusBorder( new LineBorder(Color.BLUE) );

        TableColumnModel columnModel = table.getColumnModel();
        columnModel.getColumn(column).setCellRenderer( this );
        columnModel.getColumn(column).setCellEditor( this );
        table.addMouseListener( this );
    }


    /**
     *  Get foreground color of the button when the cell has focus
     *
     *  @return the foreground color
     */
    public Border getFocusBorder()
    {
        return focusBorder;
    }

    /**
     *  The foreground color of the button when the cell has focus
     *
     *  @param focusBorder the foreground color
     */
    public void setFocusBorder(Border focusBorder)
    {
        this.focusBorder = focusBorder;
        editButton.setBorder( focusBorder );
    }

    public int getMnemonic()
    {
        return mnemonic;
    }

    /**
     *  The mnemonic to activate the button when the cell has focus
     *
     *  @param mnemonic the mnemonic
     */
    public void setMnemonic(int mnemonic)
    {
        this.mnemonic = mnemonic;
        renderButton.setMnemonic(mnemonic);
        editButton.setMnemonic(mnemonic);
    }

    @Override
    public Component getTableCellEditorComponent(
        JTable table, Object value, boolean isSelected, int row, int column)
    {
        if (value == null)
        {
            editButton.setText( "" );
            editButton.setIcon( null );
        }
        else if (value instanceof Icon)
        {
            editButton.setText( "" );
            editButton.setIcon( (Icon)value );
        }
        else
        {
            editButton.setText( value.toString() );
            editButton.setIcon( null );
        }

        this.editorValue = value;
        return editButton;
    }

    @Override
    public Object getCellEditorValue()
    {
        return editorValue;
    }

//
// Implement TableCellRenderer interface
//
    public Component getTableCellRendererComponent(
        JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
    {
        if (isSelected)
        {
            renderButton.setForeground(table.getSelectionForeground());
            renderButton.setBackground(table.getSelectionBackground());
        }
        else
        {
            renderButton.setForeground(table.getForeground());
            renderButton.setBackground(UIManager.getColor("Button.background"));
        }

        if (hasFocus)
        {
            renderButton.setBorder( focusBorder );
        }
        else
        {
            renderButton.setBorder( originalBorder );
        }

//     renderButton.setText( (value == null) ? "" : value.toString() );
        if (value == null)
        {
            renderButton.setText( "" );
            renderButton.setIcon( null );
        }
        else if (value instanceof Icon)
        {
            renderButton.setText( "" );
            renderButton.setIcon( (Icon)value );
        }
        else
        {
            renderButton.setText( value.toString() );
            renderButton.setIcon( null );
        }

        return renderButton;
    }

//
// Implement ActionListener interface
//
    /*
     *  The button has been pressed. Stop editing and invoke the custom Action
     */
    public void actionPerformed(ActionEvent e)
    {
        int row = table.convertRowIndexToModel( table.getEditingRow() );
        fireEditingStopped();

        // Invoke the Action

        ActionEvent event = new ActionEvent(
            table,
            ActionEvent.ACTION_PERFORMED,
            "" + row);
        action.actionPerformed(event);
    }

//
// Implement MouseListener interface
//
    /*
     *  When the mouse is pressed the editor is invoked. If you then then drag
     *  the mouse to another cell before releasing it, the editor is still
     *  active. Make sure editing is stopped when the mouse is released.
     */
    public void mousePressed(MouseEvent e)
    {
        if (table.isEditing()
        &&  table.getCellEditor() == this)
            isButtonColumnEditor = true;
    }

    public void mouseReleased(MouseEvent e)
    {
        if (isButtonColumnEditor
        &&  table.isEditing())
            table.getCellEditor().stopCellEditing();

        isButtonColumnEditor = false;
    }

    public void mouseClicked(MouseEvent e) {}
    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
}

InformationsquelleAutor madx