DelayTile.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.sequencediagram.teoz;

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.XDimension2D;
import net.sourceforge.plantuml.real.Real;
import net.sourceforge.plantuml.real.RealUtils;
import net.sourceforge.plantuml.sequencediagram.Delay;
import net.sourceforge.plantuml.sequencediagram.Event;
import net.sourceforge.plantuml.skin.Area;
import net.sourceforge.plantuml.skin.Component;
import net.sourceforge.plantuml.skin.ComponentType;
import net.sourceforge.plantuml.skin.Context2D;

public class DelayTile extends AbstractTile implements Tile {

	private final Delay delay;
	private final TileArguments tileArguments;
	// private Real first;
	// private Real last;
	private Real middle;
	private final YGauge yGauge;

	public Event getEvent() {
		return delay;
	}

	public DelayTile(Delay delay, TileArguments tileArguments, YGauge currentY) {
		super(tileArguments.getStringBounder(), currentY);
		this.delay = delay;
		this.tileArguments = tileArguments;
		this.yGauge = YGauge.create(currentY.getMax(), getPreferredHeight());
	}

	@Override
	public YGauge getYGauge() {
		return yGauge;
	}

	private void init(StringBounder stringBounder) {
		if (middle != null) {
			return;
		}
		final Real first = tileArguments.getFirstLivingSpace().getPosC(stringBounder);
		final Component comp = getComponent(stringBounder);
		final Real last = tileArguments.getLastLivingSpace().getPosC(stringBounder);
		this.middle = RealUtils.middle(first, last);

	}

	private Component getComponent(StringBounder stringBounder) {
		final Component comp = tileArguments.getSkin().createComponent(delay.getUsedStyles(), ComponentType.DELAY_TEXT,
				null, tileArguments.getSkinParam(), delay.getText());
		return comp;
	}

	private double getPreferredWidth(StringBounder stringBounder) {
		final Component comp = getComponent(stringBounder);
		final XDimension2D dim = comp.getPreferredDimension(stringBounder);
		return dim.getWidth();
	}

	public void drawU(UGraphic ug) {
		final StringBounder stringBounder = ug.getStringBounder();
		init(stringBounder);
		final Component comp = getComponent(stringBounder);
		final XDimension2D dim = comp.getPreferredDimension(stringBounder);
		final Area area = Area.create(getPreferredWidth(stringBounder), dim.getHeight());
		final double ypos;
		if (YGauge.USE_ME)
			ypos = getYGauge().getMin().getCurrentValue();
		else
			ypos = getTimeHook().getValue();
		tileArguments.getLivingSpaces().delayOn(ypos, dim.getHeight());

		ug = ug.apply(UTranslate.dx(getMinX().getCurrentValue()));
		comp.drawU(ug, area, (Context2D) ug);
	}

	public double getPreferredHeight() {
		final Component comp = getComponent(getStringBounder());
		final XDimension2D dim = comp.getPreferredDimension(getStringBounder());
		return dim.getHeight();
	}

	public void addConstraints() {
	}

	public Real getMinX() {
		init(getStringBounder());
		return this.middle.addFixed(-getPreferredWidth(getStringBounder()) / 2);
	}

	public Real getMaxX() {
		init(getStringBounder());
		return this.middle.addFixed(getPreferredWidth(getStringBounder()) / 2);
	}

	// private double startingY;
	//
	// public void setStartingY(double startingY) {
	// this.startingY = startingY;
	// }
	//
	// public double getStartingY() {
	// return startingY;
	// }

}