你混淆了你的责任范围。TableModel
只是假设携带数据。由视图决定如何呈现数据。
如果您需要提供某种自定义渲染,那么您需要提供您的TableCellRenderer
此示例使用复合JLabel
s 和 aEmptyBorder
来提供覆盖功能。
所以使用下面的两张图片......
我能够生产...
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
public class LayeredCellRenderer {
public static void main(String[] args) {
new LayeredCellRenderer();
}
public LayeredCellRenderer() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
BufferedImage pic = ImageIO.read(new File("Photo01.jpg"));
DefaultTableModel model = new DefaultTableModel(
new Object[][]{{pic, "Sophia", ""}},
new Object[]{"Picture", "Name", "Close"});
JTable table = new JTable(model);
table.setRowHeight(86);
table.getColumnModel().getColumn(0).setCellRenderer(new SecutiryBadgeTableCellRenderer());
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new JScrollPane(table));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} catch (IOException ex) {
ex.printStackTrace();
}
}
});
}
public static class SecutiryBadgeTableCellRenderer extends DefaultTableCellRenderer {
protected static BufferedImage background;
private JLabel subImage;
public SecutiryBadgeTableCellRenderer() {
try {
background = ImageIO.read(new File("Background.jpg"));
setIcon(new ImageIcon(background));
setLayout(new GridBagLayout());
subImage = new JLabel();
subImage.setHorizontalAlignment(JLabel.LEFT);
subImage.setVerticalAlignment(JLabel.TOP);
subImage.setBorder(new EmptyBorder(30, 10, 0, 0));
add(subImage);
} catch (IOException ex) {
ex.printStackTrace();
}
}
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, null, isSelected, hasFocus, row, column);
if (value instanceof Image) {
Image img = (Image) value;
subImage.setIcon(new ImageIcon((Image) value));
subImage.setSize(subImage.getPreferredSize());
} else {
subImage.setIcon(null);
}
return this;
}
}
}
有关更多详细信息,请参阅使用自定义渲染器