如何在GridBagLayout中的兩個JLabel之間添加JSeparator

Question

我想在GridBagLayout中的每個JLabel之間都有一個JSeparator。現在看起來像這樣：

現在我想要在圖標和JLabel之間的每個TESTSTEP標籤之後添加一個JSeparator。以下約束僅適用於JLabel和圖標。爲了讓JSeparator遍佈整個垂直線，我需要添加什麼？

GridBagConstraints lastConstraints = new GridBagConstraints(); 
    GridBagConstraints labelConstraints = new GridBagConstraints(); 

    lastConstraints.fill = GridBagConstraints.NONE; 
    lastConstraints.anchor = GridBagConstraints.EAST; 
    lastConstraints.weightx = 0.0; 
    lastConstraints.gridwidth = GridBagConstraints.REMAINDER; 
    lastConstraints.insets = new Insets(8, 8, 8, 8); 

    labelConstraints = (GridBagConstraints) lastConstraints.clone(); 
    labelConstraints.weightx = 0.0; 
    labelConstraints.fill = GridBagConstraints.NONE; 
    labelConstraints.anchor = GridBagConstraints.WEST; 
    labelConstraints.gridwidth = 1; 

Answer 1

使用：

• 填充= HORIZONTAL;
• weightx = 1.0;
• gridwidth = REMAINDER;

小例子：

import java.awt.GridBagConstraints; 
import java.awt.GridBagLayout; 
import java.awt.Insets; 

import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JSeparator; 
import javax.swing.SwingUtilities; 
import javax.swing.UIManager; 

public class TestJSeparator { 

    public TestJSeparator() { 
     JFrame frame = new JFrame(TestJSeparator.class.getSimpleName()); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     JPanel bigPanel = new JPanel(new GridBagLayout()); 
     GridBagConstraints lastConstraints = new GridBagConstraints(); 
     GridBagConstraints labelConstraints = new GridBagConstraints(); 
     GridBagConstraints separatorConstraint = new GridBagConstraints(); 
     lastConstraints.fill = GridBagConstraints.NONE; 
     lastConstraints.anchor = GridBagConstraints.EAST; 
     lastConstraints.weightx = 0.0; 
     lastConstraints.gridwidth = GridBagConstraints.REMAINDER; 
     lastConstraints.insets = new Insets(8, 8, 8, 8); 

     labelConstraints = (GridBagConstraints) lastConstraints.clone(); 
     labelConstraints.weightx = 0.0; 
     labelConstraints.fill = GridBagConstraints.NONE; 
     labelConstraints.anchor = GridBagConstraints.WEST; 
     labelConstraints.gridwidth = 1; 

     separatorConstraint.weightx = 1.0; 
     separatorConstraint.fill = GridBagConstraints.HORIZONTAL; 
     separatorConstraint.gridwidth = GridBagConstraints.REMAINDER; 

     JLabel label1 = new JLabel("1. TESTSTEP 0 TEST 0 DE"); 
     JLabel result1 = new JLabel(UIManager.getIcon("OptionPane.informationIcon")); 
     JLabel label2 = new JLabel("2. TESTSTEP 0 TEST 1 DE"); 
     JLabel result2 = new JLabel(UIManager.getIcon("OptionPane.errorIcon")); 
     bigPanel.add(label1, labelConstraints); 
     bigPanel.add(result1, lastConstraints); 
     bigPanel.add(new JSeparator(JSeparator.HORIZONTAL), separatorConstraint); 
     bigPanel.add(label2, labelConstraints); 
     bigPanel.add(result2, lastConstraints); 
     bigPanel.add(new JSeparator(JSeparator.HORIZONTAL), separatorConstraint); 
     frame.add(bigPanel); 
     frame.pack(); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       TestJSeparator gui = new TestJSeparator(); 
      } 
     }); 
    } 
}