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PlantUML is a component that allows to quickly write diagrams from text.
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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
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 * (C) Copyright 2009-2024, Arnaud Roques
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 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
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 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
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 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see .
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 * messages are usually generated on welcome or error images and never on
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 * are owned by the author of their corresponding sources code (that is, their
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 * this LGPL license.
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 */
package net.sourceforge.plantuml.activitydiagram3.gtile;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import net.sourceforge.plantuml.activitydiagram3.ftile.Swimlane;
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.utils.MathUtils;

public class GtileTopDown extends AbstractGtile {

	protected final Gtile tile1;
	protected final Gtile tile2;

	private final XDimension2D dim1;
	private final XDimension2D dim2;

	private final UTranslate pos1;
	private final UTranslate pos2;

	@Override
	public String toString() {
		return "GtileTopDown(" + tile1 + " && " + tile2 + ")";
	}

	public GtileTopDown(Gtile tile1, Gtile tile2) {
		super(tile1.getStringBounder(), tile1.skinParam());
		this.tile1 = tile1;
		this.tile2 = tile2;

		this.dim1 = tile1.calculateDimension(stringBounder);
		this.dim2 = tile2.calculateDimension(stringBounder);

		final UTranslate vector1 = tile1.getCoord(GPoint.SOUTH_BORDER);
		final UTranslate vector2 = tile2.getCoord(GPoint.NORTH_BORDER);

		final double maxDx = Math.max(vector1.getDx(), vector2.getDx());
		this.pos1 = UTranslate.dx(maxDx - vector1.getDx());
		this.pos2 = new UTranslate(maxDx - vector2.getDx(), dim1.getHeight());
	}

	protected UTranslate supplementaryMove() {
		return UTranslate.none();
	}

	@Override
	protected UTranslate getCoordImpl(String name) {
		if (name.equals(GPoint.NORTH_HOOK))
			return getPos1().compose(tile1.getCoord(name));
		if (name.equals(GPoint.SOUTH_HOOK))
			return getPos2().compose(tile2.getCoord(name));
		throw new UnsupportedOperationException();
	}

	@Override
	public Swimlane getSwimlane(String name) {
		if (name.equals(GPoint.NORTH_HOOK))
			return tile1.getSwimlane(name);
		if (name.equals(GPoint.SOUTH_HOOK))
			return tile2.getSwimlane(name);
		throw new UnsupportedOperationException();
	}

	protected UTranslate getPos1() {
		return pos1;
	}

	protected UTranslate getPos2() {
		return pos2.compose(supplementaryMove());
	}

	@Override
	protected void drawUInternal(UGraphic ug) {
		ug.apply(getPos1()).draw(tile1);
		ug.apply(getPos2()).draw(tile2);
	}

	@Override
	public XDimension2D calculateDimension(StringBounder stringBounder) {
		final XDimension2D corner1 = dim1.applyTranslate(getPos1());
		final XDimension2D corner2 = dim2.applyTranslate(getPos2());
		return MathUtils.maxDim(corner1, corner2);
	}

	public Set getSwimlanes() {
		final Set result = new HashSet<>();
		result.addAll(tile1.getSwimlanes());
		result.addAll(tile2.getSwimlanes());
		return Collections.unmodifiableSet(result);
	}

//	public Collection getMyChildren() {
//		return Arrays.asList(tile1, tile2);
//	}

}