如何在JLabel中自动换行? [英] How to word wrap text in JLabel?
问题描述
如何包装超过JLabel宽度的文本"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" 我尝试将文本包含在html标签中,但是没有运气. 请提出您的建议.
How can text like "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" which exceeds the width of the JLabel be wrapped? I have tried enclosing the text into html tags but no luck. Please give your suggestions.
推荐答案
一种常见的方法是不使用JLabel
而是使用JTextArea
并启用自动换行和自动换行.然后,您可以装饰JTextArea以使其看起来像JLabel(边框,背景色等). [已编辑,以根据DSquare的评论包含换行符,以确保完整性]
A common approach is to not use a JLabel
and instead use a JTextArea
with word-wrap and line-wrap turned on. You could then decorate the JTextArea to make it look like a JLabel (border, background color, etc.).
另一种方法是在标签中使用HTML,如在此处看到.注意事项
Another approach is to use HTML in your label, as seen here. The caveats there are
-
您可能需要照顾HTML可以从纯文本解释/转换的某些字符
You may have to take care of certain characters that HTML may interpret/convert from plain text
调用myLabel.getText()
现在将包含HTML(可能
#1
Calling myLabel.getText()
will now contain HTML (with possibly
escaped and/or converted characters due to #1
编辑:以下是JTextArea方法的示例:
Here's an example for the JTextArea approach:
import javax.swing.*;
public class JLabelLongTextDemo implements Runnable
{
public static void main(String args[])
{
SwingUtilities.invokeLater(new JLabelLongTextDemo());
}
public void run()
{
JLabel label = new JLabel("Hello");
String text = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
// String text = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa " +
// "quick brown fox jumped over the lazy dog.";
JTextArea textArea = new JTextArea(2, 20);
textArea.setText(text);
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
textArea.setOpaque(false);
textArea.setEditable(false);
textArea.setFocusable(false);
textArea.setBackground(UIManager.getColor("Label.background"));
textArea.setFont(UIManager.getFont("Label.font"));
textArea.setBorder(UIManager.getBorder("Label.border"));
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(label, BorderLayout.NORTH);
frame.getContentPane().add(textArea, BorderLayout.CENTER);
frame.setSize(100,200);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
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