JLabel - 将更长的文本显示为多行? [英] JLabel - Show longer text as multiple lines?
问题描述
所以说我想在 JLabel 中显示很长的一行.我该怎么做?
So say I have a really long line that I want to display in a JLabel. How can I do it?
目前，更长的行是这样的:
Currently, longer lines come up as this:
我必须调整窗口大小才能看到完整的文本.
I have to resize the window to see the complete text.
当文本几乎达到我的 JFrame 的宽度时，我怎样才能做到有换行符?
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让您回答这个问题，但仍然:
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);
更多详情:
我正在从文件中读取行，然后显示它们.行的大小不固定，所以我不知道把
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:
我最终使用了 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，说明使用正确的布局管理器，HTML 标签中的文本会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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