TextBlockHorizontal.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * Original Author:  Arnaud Roques
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package net.sourceforge.plantuml.klimt.shape;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.plantuml.annotation.Fast;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.VerticalAlignment;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;

public class TextBlockHorizontal extends TextBlockMemoized {

	private final List<TextBlock> blocks = new ArrayList<>();
	private final VerticalAlignment alignment;

	TextBlockHorizontal(TextBlock b1, TextBlock b2, VerticalAlignment alignment) {
		this.blocks.add(b1);
		this.blocks.add(b2);
		this.alignment = alignment;
	}

	public TextBlockHorizontal(List<TextBlock> all, VerticalAlignment alignment) {
		if (all.size() < 2)
			throw new IllegalArgumentException();

		this.blocks.addAll(all);
		this.alignment = alignment;
	}

	@Override
	@Fast
	public XDimension2D calculateDimensionSlow(StringBounder stringBounder) {
		XDimension2D dim = blocks.get(0).calculateDimension(stringBounder);
		for (int i = 1; i < blocks.size(); i++)
			dim = dim.mergeLR(blocks.get(i).calculateDimension(stringBounder));

		return dim;
	}

	@Override
	public void drawU(UGraphic ug) {
		double x = 0;
		final XDimension2D dimtotal = calculateDimension(ug.getStringBounder());
		for (TextBlock block : blocks) {
			final XDimension2D dimb = block.calculateDimension(ug.getStringBounder());
			final double dy;
			if (alignment == VerticalAlignment.CENTER)
				dy = (dimtotal.getHeight() - dimb.getHeight()) / 2;
			else if (alignment == VerticalAlignment.BOTTOM)
				dy = dimtotal.getHeight() - dimb.getHeight();
			else
				dy = 0;
			block.drawU(ug.apply(new UTranslate(x, dy)));
			x += dimb.getWidth();
		}
	}

}