JTextPane - 适合其内容的大小

时间:2015-05-07 07:32:23

标签: java swing jtextpane

我有什么 -

我需要什么 -

代码:

JFrame frame = new JFrame();
JPanel panel = new JPanel();
JTextPane pane = new JTextPane();
pane.setText("Long string Long string Long string Long string Long string Long string");
panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
panel.add(pane);
panel.add(new JButton("Button"));
frame.add(panel);
frame.show();

如果我做了 frame.pack(),我会得到很长的窗口而没有自动换行!

1 个答案:

答案 0 :(得分:3)

对于任何支持HTML的Swing组件,可以使用HTML样式(CSS)为body设置宽度。这反过来将决定要渲染的行数,并从中确定文本组件的首选高度。在CSS中设置宽度可以避免计算组件中的换行符(或最佳大小)的位置。

更一般地说,请参阅How to Use HTML in Swing Components

E.G。

import javax.swing.*;

public class FixedWidthLabel {

    public static void main(String[] srgs) {
        final String s = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean eu nulla urna. Donec sit amet risus nisl, a porta enim. Quisque luctus, ligula eu scelerisque gravida, tellus quam vestibulum urna, ut aliquet sapien purus sed erat. Pellentesque consequat vehicula magna, eu aliquam magna interdum porttitor. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Sed sollicitudin sapien non leo tempus lobortis. Morbi semper auctor ipsum, a semper quam elementum a. Aliquam eget sem metus.";
        final String html1 = "<html><body style='width: ";
        final String html2 = "px'>";

        Runnable r = new Runnable() {

            @Override
            public void run() {
                JOptionPane.showMessageDialog(
                        null, new JLabel(html1 + "200" + html2 + s));
                JOptionPane.showMessageDialog(
                        null, new JLabel(html1 + "300" + html2 + s));
            }
        };
        SwingUtilities.invokeLater(r);
    }
}

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