/* ========================================================================
 * 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/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 * 
 *
 */
package net.sourceforge.plantuml.skin.rose;

import net.sourceforge.plantuml.klimt.Fashion;
import net.sourceforge.plantuml.klimt.UGroupType;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColorSet;
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.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.ULine;
import net.sourceforge.plantuml.klimt.shape.URectangle;
import net.sourceforge.plantuml.skin.AbstractComponent;
import net.sourceforge.plantuml.skin.Area;
import net.sourceforge.plantuml.style.Style;

import static java.util.Collections.singletonMap;

public class ComponentRoseActiveLine extends AbstractComponent {

	private final Fashion symbolContext;
	private final boolean closeUp;
	private final boolean closeDown;
    private final Display stringsToDisplay;

    public ComponentRoseActiveLine(Style style, boolean closeUp, boolean closeDown, HColorSet set, Display stringsToDisplay) {
		super(style);
        this.symbolContext = style.getSymbolContext(set);
		this.closeUp = closeUp;
		this.closeDown = closeDown;
		// Ideally, stringsToDisplay should never be null. However, as a safeguard, 
		// we default to Display.NULL when it is null.
		this.stringsToDisplay = stringsToDisplay == null ? Display.NULL : stringsToDisplay;
	}

	protected void drawInternalU(UGraphic ug, Area area) {
		final XDimension2D dimensionToUse = area.getDimensionToUse();
		final StringBounder stringBounder = ug.getStringBounder();
		final int x = (int) (dimensionToUse.getWidth() - getPreferredWidth(stringBounder)) / 2;

		if (dimensionToUse.getHeight() == 0) {
			return;
		}

		ug.startGroup(singletonMap(UGroupType.TITLE, stringsToDisplay.toTooltipText()));

		final URectangle rect = URectangle.build(getPreferredWidth(stringBounder), dimensionToUse.getHeight());
		if (symbolContext.isShadowing()) {
			rect.setDeltaShadow(1);
		}
		ug = ug.apply(symbolContext.getForeColor());
		if (closeUp && closeDown) {
			ug.apply(symbolContext.getBackColor().bg()).apply(UTranslate.dx(x)).draw(rect);
		} else {
			ug.apply(symbolContext.getBackColor().bg()).apply(symbolContext.getBackColor()).apply(UTranslate.dx(x))
					.draw(rect);

			final ULine vline = ULine.vline(dimensionToUse.getHeight());
			ug.apply(UTranslate.dx(x)).draw(vline);
			ug.apply(UTranslate.dx(x + getPreferredWidth(stringBounder))).draw(vline);

			final ULine hline = ULine.hline(getPreferredWidth(stringBounder));
			if (closeUp) {
				ug.apply(UTranslate.dx(x)).draw(hline);
			}
			if (closeDown) {
				ug.apply(new UTranslate(x, dimensionToUse.getHeight())).draw(hline);
			}
		}

		ug.closeGroup();
	}

	@Override
	public double getPreferredHeight(StringBounder stringBounder) {
		return 0;
	}

	@Override
	public double getPreferredWidth(StringBounder stringBounder) {
		return 10;
	}
}
