如何在组件旁边显示行数 -> RSyntaxTextArea
下面的代码有效，但我需要使用特定组件代替我的框架，当我这样做时，旁边的行会消失。
/*
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package br.com.flp.entidades;
import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JFrame;
import static javax.swing.JFrame.EXIT_ON_CLOSE;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
import org.fife.ui.rsyntaxtextarea.SyntaxConstants;
import org.fife.ui.rtextarea.RTextScrollPane;
/**
*
* @author Filipe
*/
public class TextEditorRSyntax extends JFrame {
public TextEditorRSyntax() {
JPanel cp = new JPanel(new BorderLayout());
RSyntaxTextArea textArea = new RSyntaxTextArea(20, 60);
textArea.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_SQL);
textArea.setCodeFoldingEnabled(true);
RTextScrollPane sp = new RTextScrollPane(textArea);
cp.add(sp);
Color azulClaro = Color.decode("#E0EEEE");
textArea.setCurrentLineHighlightColor(azulClaro);
setContentPane(cp);
setTitle("Text Editor Demo");
setDefaultCloseOperation(EXIT_ON_CLOSE);
pack();
setLocationRelativeTo(null);
}
public static void main(String[] args) {
// Start all Swing applications on the EDT.
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new TextEditorRSyntax().setVisible(true);
}
});
}
}