StringBounderTeaVM.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
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 * (C) Copyright 2009-2025, Arnaud Roques
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 * Original Author:  Arnaud Roques
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package net.sourceforge.plantuml.teavm;

import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.font.UFont;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;

public class StringBounderTeaVM implements StringBounder {

	@Override
	public XDimension2D calculateDimension(UFont font, String text) {
		// ::uncomment when __TEAVM__
//		if (text == null || text.isEmpty())
//			return new XDimension2D(0, 0);
//
//		final String fontFamily = font.getFamily(null, null);
//		final int fontSize = font.getSize();
//		final String fontWeight = font.isBold() ? "bold" : "normal";
//
//		final double[] metrics = SvgGraphicsTeaVM.measureTextCanvas(text, fontFamily, fontSize, fontWeight);
//		final double width = metrics[0];
//
//		// Use SVG getBBox for height as it's more accurate for layout
//		final double[] svgMetrics = SvgGraphicsTeaVM.measureTextSvgBBox(text, fontFamily, fontSize);
//		double height = svgMetrics[1];
//
//		// getBBox returns height=0 for whitespace-only strings (no visible glyphs)
//		// In this case, use font metrics to get the proper line height
//		if (height == 0 && !text.isEmpty()) {
//			final double[] detailedMetrics = SvgGraphicsTeaVM.getDetailedTextMetrics(text, fontFamily, fontSize, fontWeight);
//			height = detailedMetrics[3] + detailedMetrics[4]; // fontBoundingBoxAscent + fontBoundingBoxDescent
//		}
//
//		return new XDimension2D(width, height);
		// ::done
		
		// ::comment when __TEAVM__
		throw new UnsupportedOperationException();
		// ::done

	}

	@Override
	public double getDescent(UFont font, String text) {
		// ::uncomment when __TEAVM__
//		if (text == null || text.isEmpty())
//			return 0;
//
//		final String fontFamily = font.getFamily(null, null);
//		final int fontSize = font.getSize();
//		final String fontWeight = font.isBold() ? "bold" : "normal";
//
//		final double[] metrics = SvgGraphicsTeaVM.getDetailedTextMetrics(text, fontFamily, fontSize, fontWeight);
//		// metrics[2] is actualBoundingBoxDescent
//		return metrics[2];
		// ::done

		// ::comment when __TEAVM__
		throw new UnsupportedOperationException();
		// ::done

	}

	@Override
	public boolean matchesProperty(String propertyName) {
		if ("TEAVM".equalsIgnoreCase(propertyName))
			return true;

		if ("SVG".equalsIgnoreCase(propertyName))
			return true;

		return false;
	}
}