java - 使用graphics2D 在图像上环绕/旋转文本

Question

void multiLine (int x, int y, String label, Graphics2D g) {

    AffineTransform fontAT = new AffineTransform();
    Font theFont = g.getFont();
    fontAT.rotate(-Math.PI / 2);
    Font theDerivedFont = theFont.deriveFont(fontAT);
    g.setFont(theDerivedFont);

    AttributedString attrStr = new AttributedString(label);
    // Get iterator for string:
    AttributedCharacterIterator characterIterator = attrStr.getIterator();

    // Get font context from graphics:
    FontRenderContext fontRenderContext = g.getFontRenderContext();

    // Create measurer:
    LineBreakMeasurer measurer = new LineBreakMeasurer(characterIterator,
            fontRenderContext);

    while (measurer.getPosition() < characterIterator.getEndIndex()) {
        TextLayout textLayout = measurer.nextLayout(200);
        y += textLayout.getAscent(); //Have tried changing y to x
        textLayout.draw(g, x, y);

        y += textLayout.getDescent() + textLayout.getLeading(); //Have tried changing y to x
    }
    g.setFont(theFont);

}

我希望它能垂直打印行，但它没有，关于如何解决这个问题的任何想法。

这会输出水平换行的文本。

编辑:更改问题以正确反射(reflect)我想要实现的目标

Answer 1

减少包装宽度。 200太大了，所以没有换行。如果您希望每个字符占一个新行，请将其设置为 0。

TextLayout textLayout = measurer.nextLayout(0);