plantuml/src/net/sourceforge/plantuml/mindmap/Idea.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 * 
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 * under the terms of the GNU General Public License as published by
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 * PlantUML distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
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 * Original Author:  Arnaud Roques
 *
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 */
package net.sourceforge.plantuml.mindmap;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.style.MergeStrategy;
import net.sourceforge.plantuml.style.SName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.style.StyleBuilder;
import net.sourceforge.plantuml.style.StyleSignatureBasic;
import net.sourceforge.plantuml.wbs.WElement;

class Idea {

	private final Display label;
	private final int level;
	private final Idea parent;
	private final List<Idea> children = new ArrayList<>();
	private final IdeaShape shape;
	private final HColor backColor;
	private final StyleBuilder styleBuilder;
	private final String stereotype;

	private StyleSignatureBasic getDefaultStyleDefinitionNode(int level) {
		final String depth = SName.depth(level);
		if (level == 0)
			return StyleSignatureBasic.of(SName.root, SName.element, SName.mindmapDiagram, SName.node, SName.rootNode)
					.addS(stereotype).add(depth);

		if (shape == IdeaShape.NONE && children.size() == 0)
			return StyleSignatureBasic
					.of(SName.root, SName.element, SName.mindmapDiagram, SName.node, SName.leafNode, SName.boxless)
					.addS(stereotype).add(depth);

		if (shape == IdeaShape.NONE)
			return StyleSignatureBasic.of(SName.root, SName.element, SName.mindmapDiagram, SName.node, SName.boxless)
					.addS(stereotype).add(depth);

		if (children.size() == 0)
			return StyleSignatureBasic.of(SName.root, SName.element, SName.mindmapDiagram, SName.node, SName.leafNode)
					.addS(stereotype).add(depth);

		return StyleSignatureBasic.of(SName.root, SName.element, SName.mindmapDiagram, SName.node).addS(stereotype)
				.add(depth);
	}

	private static final int STEP_BY_PARENT = WElement.STEP_BY_PARENT;

	public Style getStyle() {
		int deltaPriority = STEP_BY_PARENT * 1000;
		Style result = styleBuilder.getMergedStyleSpecial(getDefaultStyleDefinitionNode(level), deltaPriority);
		for (Idea up = parent; up != null; up = up.parent) {
			final StyleSignatureBasic ss = up.getDefaultStyleDefinitionNode(level).addStar();
			deltaPriority -= STEP_BY_PARENT;
			final Style styleParent = styleBuilder.getMergedStyleSpecial(ss, deltaPriority);
			result = result.mergeWith(styleParent, MergeStrategy.OVERWRITE_EXISTING_VALUE);
		}
		return result;
	}

	public Style getStyleArrow() {
		final String depth = SName.depth(level);
		final StyleSignatureBasic defaultStyleDefinitionArrow = StyleSignatureBasic
				.of(SName.root, SName.element, SName.mindmapDiagram, SName.arrow).addS(stereotype).add(depth);
		return defaultStyleDefinitionArrow.getMergedStyle(styleBuilder);
	}

	public static Idea createIdeaSimple(StyleBuilder styleBuilder, HColor backColor, Display label, IdeaShape shape,
			String stereotype) {
		return new Idea(styleBuilder, backColor, 0, null, label, shape, stereotype);
	}

	public Idea createIdea(StyleBuilder styleBuilder, HColor backColor, int newLevel, Display newDisplay,
			IdeaShape newShape, String stereotype) {
		final Idea result = new Idea(styleBuilder, backColor, newLevel, this, newDisplay, newShape, stereotype);
		this.children.add(result);
		return result;
	}

	private Idea(StyleBuilder styleBuilder, HColor backColor, int level, Idea parent, Display label, IdeaShape shape,
			String stereotype) {
		this.backColor = backColor;
		this.styleBuilder = styleBuilder;
		this.label = label;
		this.level = level;
		this.parent = parent;
		this.shape = shape;
		this.stereotype = stereotype;
	}

	@Override
	public String toString() {
		return label.toString();
	}

	public final int getLevel() {
		return level;
	}

	public final Display getLabel() {
		return label;
	}

	public Collection<Idea> getChildren() {
		return Collections.unmodifiableList(children);
	}

	public boolean hasChildren() {
		return children.size() > 0;
	}

	public Idea getParent() {
		return parent;
	}

	public final IdeaShape getShape() {
		return shape;
	}

	public final HColor getBackColor() {
		return backColor;
	}

	public final StyleBuilder getStyleBuilder() {
		return styleBuilder;
	}

	public final String getStereotype() {
		return stereotype;
	}

}