如何使用 Nimbus L&F 更改 JSeparator 的颜色

How to change the color of a JSeparator using the Nimbus L&F

这是我尝试根据 How to change the color of a JSeparator? 中的答案将垂直 JSeparator 的颜色从 Nimbus 默认黑色更改为红色的尝试:

public class TestFrame extends JFrame {

    public static void main(String[] args) {

        TestFrame frame = new TestFrame();
        frame.setSize(200, 200);
        frame.setLayout(new GridBagLayout());

        for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                try {
                    UIManager.setLookAndFeel(info.getClassName());
                } catch (ClassNotFoundException ex) {
                    Logger.getLogger(TestFrame.class.getName()).log(Level.SEVERE, null, ex);
                } catch (InstantiationException ex) {
                    Logger.getLogger(TestFrame.class.getName()).log(Level.SEVERE, null, ex);
                } catch (IllegalAccessException ex) {
                    Logger.getLogger(TestFrame.class.getName()).log(Level.SEVERE, null, ex);
                } catch (UnsupportedLookAndFeelException ex) {
                    Logger.getLogger(TestFrame.class.getName()).log(Level.SEVERE, null, ex);
                }
                break;
            }
        }
        UIManager.put("Separator.background", Color.red);
        UIManager.put("Separator.foreground", Color.red);

        JSeparator separator = new JSeparator(JSeparator.VERTICAL);
        separator.setPreferredSize(new Dimension(2, 100));
        separator.setForeground(Color.red);
        separator.setBackground(Color.red);

        frame.add(separator, new GridBagConstraints());
        frame.setVisible(true);

    }

}

但是垂直分隔符仍然是黑色。我应该做什么?

注意:我知道 Nimbus 是问题所在,因为我尝试在没有将 L&F 设置为 Nimbus 的情况下工作正常。还要注意设置 Separator[Enabled].backgroundPainter 属性 似乎影响了 JSeperator 但不是我想要的方式(只是改变了背景颜色与分隔线颜色)

我通过更改 Nimbus 用来派生其他颜色的 nimbusBlueGrey 颜色解决了这个问题。将分隔符设置为不透明只会帮助更改背景颜色,但 JSeperator's 有 2 种颜色,前景和背景,因此设置为不透明并更改背景颜色解决了一半问题。 nimbusBlueGrey 似乎处理前景色,这似乎不能被 setForegroundcolor()Separator.foreground 属性.

覆盖

问题是更改 nimbusBlueGrey 会影响许多其他组件的颜色。我不确定如何将颜色更改仅包含在 JSeperator 中。

  /**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Windows look and feel instead of NIMBUS*/
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
      /*Change This Line To Make Your TextField Transparent */      if ("WINDOWS".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(Furious.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(Furious.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(Furious.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(Furious.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new Furious().setVisible(true);
        }
    });
}

只需将您的外观从 NIMBUS 更改为 WINDOWS,它对我来说效果很好。

这是我的快照 UI: