除了删除线之外，属性化字符串的任何功能都不起作用

Question

我必须写一个字符串到.我正在使用 . 正在工作。上标，下标等不起作用。BufferedImageAtrributedStringTextAttribute.STRIKETHROUGHpublic class TextAttributesSuperscript  {    static String Background = "input.png";    static int curX = 10;    static int curY = 50;    public static void main(String[] args) throws Exception {        AttributedString attributedString= new AttributedString("this is data. this data should be super script");        attributedString.addAttribute(TextAttribute.FONT, new Font("TimesRoman", Font.PLAIN, 18));        attributedString.addAttribute(TextAttribute.FOREGROUND, Color.BLACK);        attributedString.addAttribute(TextAttribute.FONT, new Font("TimesRoman", Font.BOLD, 18), 30,33);        attributedString.addAttribute(TextAttribute.FOREGROUND, Color.BLUE, 29,33);    attributedString.addAttribute(TextAttribute.SUPERSCRIPT,TextAttribute.SUPERSCRIPT_SUPER,30,33);        final BufferedImage image = ImageIO.read(new File(Background));        Graphics g = image.getGraphics();        g.drawString(attributedString.getIterator(), curX, curY);        g.dispose();        ImageIO.write(image, "png", new File("output.png"));    }}在执行上述代码时。上标部分不起作用（文本未像上标一样打印）

Answer 1

我不太确定为什么你的代码不起作用，因为这样做似乎是完全合乎逻辑的。我不明白为什么有些属性有效，有些则不起作用。

但根据 Java 2D 教程：使用文本属性来设置文本样式，应在字体上设置属性，而不是在文本本身上设置属性。即。用。SUPERSCRIPTFont.deriveFont(Map<Attribute, ?> attributes)

以下内容适用于我（我稍微修改了您的代码，使其不依赖于您的后台文件）：

public class TextAttributesSuperscript  {

    static int curX = 10;

    static int curY = 50;

    public static void main(String[] args) throws Exception {

        AttributedString attributedString = new AttributedString("this is data. this data should be super script");

        attributedString.addAttribute(TextAttribute.FONT, new Font("TimesRoman", Font.PLAIN, 18));

        attributedString.addAttribute(TextAttribute.FOREGROUND, Color.BLACK);

        Font superScript = new Font("TimesRoman", Font.BOLD, 18)

                .deriveFont(Collections.singletonMap(TextAttribute.SUPERSCRIPT, TextAttribute.SUPERSCRIPT_SUPER));

        attributedString.addAttribute(TextAttribute.FONT, superScript, 30, 33);

        attributedString.addAttribute(TextAttribute.FOREGROUND, Color.BLUE, 30,33);

        BufferedImage image = new BufferedImage(400, 100, BufferedImage.TYPE_INT_ARGB);

        Graphics2D g = image.createGraphics();

        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);

        g.setColor(Color.WHITE);

        g.fillRect(0, 0, image.getWidth(), image.getHeight());

        g.drawString(attributedString.getIterator(), curX, curY);

        g.dispose();

        ImageIO.write(image, "png", new File("output.png"));

    }

}