Question

我正在使用JTable（特别是JXTable），当我将鼠标悬停在单元格上时，我想呈现某种JPanel或Component（使用JFreeChart显示一些图形数据）

我知道JTable有这个：

http://docs.oracle.com/javase/7/docs/api/javax/swing/JTable.html#getToolTipText(java.awt.event.MouseEvent)

但这显然只是一种显示文本工具提示的方法。有任何想法或解决方案吗？

Answer 1

您可以在鼠标悬停时显示弹出窗口，您可以根据需要自定义弹出窗口。我希望下面的代码可以提供帮助。

JFrame frame = new JFrame("Sort Records based on Time");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Object rows[][] = { { "Loganathan Mohanraj", 31 },
    { "Renuka Loganathan", 26 } };

String columns[] = { "Name", "Age" };

final JPopupMenu popUp = new JPopupMenu("Customized Tool Tip");

final JTable table = new JTable(new DefaultTableModel(rows, columns));
table.addMouseMotionListener(new MouseMotionAdapter() {
    @Override
    public void mouseMoved(MouseEvent e) {
    int row = table.rowAtPoint(e.getPoint());
    int column = table.columnAtPoint(e.getPoint());

    Rectangle bounds = table.getCellRect(row, column, true);

    popUp.setVisible(false);
    popUp.removeAll();
    popUp.add(new JTextField("Mouse Position - Row : " + row + ", Column : " + column));
    popUp.show(table, bounds.x, bounds.y + bounds.height);
    popUp.setVisible(true);
    }
});

JScrollPane pane = new JScrollPane(table);

frame.add(pane, BorderLayout.CENTER);

frame.setSize(300, 150);
frame.setVisible(true);

Answer 2

只需在工具提示中使用html标签，如下所示：

table.setToolTipText("<html>"
    + "Get pic from http://www.jfree.org/jfreechart/images/CrossHairDemo2-254.png<br><br>"
    + "<img src=\"http://www.jfree.org/jfreechart/images/CrossHairDemo2-254.png\"></img></html>");

enter image description here

JTable ToolTip作为JComponent或JPanel

2 个答案: