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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the MIT License.
 *
 * See http://opensource.org/licenses/MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this MIT license.
 *
 * The generated images can then be used without any reference to the MIT license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.mindmap;

import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.shape.UDrawable;
import net.sourceforge.plantuml.style.ISkinParam;
import net.sourceforge.plantuml.style.StyleBuilder;

class Branch implements UDrawable {
	private Idea root;
	private Idea last;
	private Finger finger;

	void initRoot(StyleBuilder styleBuilder, HColor backColor, Display label, IdeaShape shape, String stereotype) {
		root = Idea.createIdeaSimple(styleBuilder, backColor, label, shape, stereotype);
		last = root;
	}

	void initFinger(ISkinParam skinParam, boolean direction) {
		finger = FingerImpl.build(root, skinParam, direction);
	}

	Idea getParentOfLast(int nb) {
		Idea result = last;
		for (int i = 0; i < nb; i++)
			result = result.getParent();

		return result;
	}

	CommandExecutionResult add(StyleBuilder styleBuilder, HColor backColor, int level, Display label, IdeaShape shape,
			String stereotype) {
		if (last == null)
			return CommandExecutionResult.error("Check your indentation ?");

		if (level == last.getLevel() + 1) {
			final Idea newIdea = last.createIdea(styleBuilder, backColor, level, label, shape, stereotype);
			last = newIdea;
			return CommandExecutionResult.ok();
		}
		if (level <= last.getLevel()) {
			final int diff = last.getLevel() - level + 1;
			final Idea newIdea = getParentOfLast(diff).createIdea(styleBuilder, backColor, level, label, shape,
					stereotype);
			last = newIdea;
			return CommandExecutionResult.ok();
		}
		return CommandExecutionResult.error("error42L");
	}

	public boolean hasFinger() {
		return finger != null;
	}

	public void drawU(UGraphic ug) {
		if (finger != null)
			finger.drawU(ug);
	}

	public double getHalfThickness(StringBounder stringBounder) {
		if (finger == null)
			return 0;
		return finger.getFullThickness(stringBounder) / 2;
	}

	public double getFullElongation(StringBounder stringBounder) {
		if (finger == null)
			return 0;
		return finger.getFullElongation(stringBounder);
	}

	public boolean hasChildren() {
		return root.hasChildren();
	}

	public boolean hasRoot() {
		return root != null;
	}

	public void doNotDrawFirstPhalanx() {
		finger.doNotDrawFirstPhalanx();
	}

	public double getX12(StringBounder stringBounder) {
		if (finger == null)
			return 0;
		return finger.getFullElongation(stringBounder) + ((FingerImpl) finger).getX12();
	}

}