如何打印选定的行 JTable [英] how to print selected rows JTable
本文介绍了如何打印选定的行 JTable的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试使用 Main JTable 的选定行和相同的 head 和 cell 渲染做一个临时 JTable,但是当我尝试打印它时,我只得到一个带有线边框的空矩形,我在 如何打印出 JTable 的特定行/列?另一种使用矩形和单元格边界的方法,但我不明白,我需要一些帮助来使其更清晰
I tried doing a temporary JTable with the selected rows of the Main JTable and the same head and cell renders, but when I try to print it I just get an empty rectangle with a line border, I saw in How to print out specific rows/columns of a JTable? another way using rectangle and cell bounds, but I don't get it, I need some help to make it clearer
推荐答案
似乎对我来说还行...
Seems to work okay for me...
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.PrinterException;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
public class TestPrint {
public static void main(String[] args) {
new TestPrint();
}
public TestPrint() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
DefaultTableModel model = new DefaultTableModel(0, 26);
for (int row = 0; row < 26; row++) {
Vector data = new Vector(26);
for (int col = 0; col < 26; col++) {
String value = row + "x" + ((char) (col + 'A'));
data.add(value);
}
model.addRow(data);
}
JTable table = new JTable(model);
JButton print = new JButton("Print");
print.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
try {
DefaultTableModel viewModel = (DefaultTableModel) table.getModel();
DefaultTableModel printModel = new DefaultTableModel(0, viewModel.getColumnCount());
for (int row : table.getSelectedRows()) {
printModel.addRow((Vector) viewModel.getDataVector().get(row));
}
JTable toPrint = new JTable(printModel);
toPrint.setSize(toPrint.getPreferredSize());
JTableHeader tableHeader = toPrint.getTableHeader();
tableHeader.setSize(tableHeader.getPreferredSize());
toPrint.print(JTable.PrintMode.FIT_WIDTH);
} catch (PrinterException ex) {
ex.printStackTrace();
}
}
});
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new JScrollPane(table));
frame.add(print, BorderLayout.SOUTH);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
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