JLabel - 将更长的文本显示为多行？ [英] JLabel - Show longer text as multiple lines?
问题描述
所以说我想要在 JLabel 中显示一条非常长的行。我该怎么办？
So say I have a really long line that I want to display in a JLabel. How can I do it?
目前，更长的行显示为：
Currently, longer lines come up as this:
我必须调整窗口大小以查看完整文本。
I have to resize the window to see the complete text.
如果文本差不多达到我的 JFrame 的宽度，我怎么能这样做呢？
How can I make it so that there's linebreaks when the text almost reaches the width of my JFrame?
我不确定这里是否需要任何代码才能回答这个问题，但仍然是：
I'm not sure if any code is required here for you to answer this, but still:
我的框架属性：
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(new Dimension(450, 400));
frame.setLocation(new Point(400, 300));
frame.setLayout(new BorderLayout());
我要修改的标签：
question = new JLabel("Question:");
question.setFont(new Font("Serif", Font.BOLD, 15));
question.setHorizontalAlignment(JLabel.CENTER);
编辑：
更多详情：
More details:
我正在从文件中读取行，然后显示它们。线条的大小不固定，所以我不知道在哪里放< br> at。
I am reading lines from a file and then displaying them. The size of lines is not fixed, and so I do not know where to put <br> at.
编辑2：
我最终使用 JTextArea 。
private JTextArea textAreaProperties(JTextArea textArea) {
textArea.setEditable(false);
textArea.setCursor(null);
textArea.setOpaque(false);
textArea.setFocusable(false);
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);
return textArea;
}
推荐答案
再举一个例子，显示出来，使用正确的布局管理器，包含在 HTML 标签中的文本将自动换行到可用空间...
Just another example, showing that, with the right layout manager, text wrapped in HTML tags will automatically wrap to the available space...
public class TestHTMLLabel {
public static void main(String[] args) {
new TestHTMLLabel();
}
public TestHTMLLabel() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
StringBuilder sb = new StringBuilder(64);
sb.append("<html>I have something to say, it's beter to burn out then to fade away.").
append(" This is a very long String to see if you can wrap with in").
append("the available space</html>");
JLabel label = new JLabel(sb.toString());
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(label);
frame.setSize(100, 100);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}
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