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PlantUML is a component that allows to quickly write : * sequence diagram, * use case diagram, * class diagram, * activity diagram, * component diagram, * state diagram * object diagram
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/* ========================================================================
 * 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.klimt.shape;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.creole.command.FontChange;
import net.sourceforge.plantuml.klimt.creole.command.HtmlCommand;
import net.sourceforge.plantuml.klimt.creole.command.Img;
import net.sourceforge.plantuml.klimt.creole.command.PlainText;
import net.sourceforge.plantuml.klimt.creole.command.Splitter;
import net.sourceforge.plantuml.klimt.creole.command.SpriteCommand;
import net.sourceforge.plantuml.klimt.creole.command.TextLink;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.FontConfiguration;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.sprite.Sprite;
import net.sourceforge.plantuml.klimt.sprite.SpriteContainer;
import net.sourceforge.plantuml.url.Url;

public class SingleLine extends AbstractTextBlock implements Line {
    // ::remove file when __HAXE__

	private final List blocs = new ArrayList<>();
	private final HorizontalAlignment horizontalAlignment;

	public static SingleLine withSomeHtmlTag(String text, FontConfiguration fontConfiguration,
			HorizontalAlignment horizontalAlignment, SpriteContainer spriteContainer) {
		final SingleLine result = new SingleLine(horizontalAlignment);

		if (text.length() == 0)
			text = " ";

		final Splitter lineSplitter = new Splitter(text);

		for (HtmlCommand cmd : lineSplitter.getHtmlCommands(false)) {
			if (cmd instanceof PlainText) {
				final String s = ((PlainText) cmd).getText();
				result.blocs.add(new TileText(s, fontConfiguration, null));
			} else if (cmd instanceof TextLink) {
				final String s = ((TextLink) cmd).getText();
				final Url url = ((TextLink) cmd).getUrl();
				// blocs.add(new TileText(s, fontConfiguration.add(FontStyle.UNDERLINE), url));
				result.blocs.add(new TileText(s, fontConfiguration, url));
			} else if (cmd instanceof Img) {
				result.blocs.add(((Img) cmd).createMonoImage());
			} else if (cmd instanceof SpriteCommand) {
				final Sprite sprite = spriteContainer.getSprite(((SpriteCommand) cmd).getSprite());
				if (sprite != null)
					result.blocs.add(sprite.asTextBlock(fontConfiguration.getColor(), 1));

			} else if (cmd instanceof FontChange) {
				fontConfiguration = ((FontChange) cmd).apply(fontConfiguration);
			}
		}
		return result;
	}

	public static SingleLine rawText(String text, FontConfiguration fontConfiguration) {
		final SingleLine result = new SingleLine(HorizontalAlignment.LEFT);
		if (text.length() == 0)
			text = " ";

		result.blocs.add(new TileText(text, fontConfiguration, null));
		return result;
	}

	private SingleLine(HorizontalAlignment horizontalAlignment) {
		this.horizontalAlignment = horizontalAlignment;
	}

	public XDimension2D calculateDimension(StringBounder stringBounder) {
		double width = 0;
		double height = 0;
		for (TextBlock b : blocs) {
			final XDimension2D size2D = b.calculateDimension(stringBounder);
			width += size2D.getWidth();
			height = Math.max(height, size2D.getHeight());
		}
		return new XDimension2D(width, height);
	}

	// private double maxDeltaY(Graphics2D g2d) {
	// double result = 0;
	// final Dimension2D dim =
	// calculateDimension(StringBounderUtils.asStringBounder(g2d));
	// for (TextBlock b : blocs) {
	// if (b instanceof TileText == false) {
	// continue;
	// }
	// final Dimension2D dimBloc =
	// b.calculateDimension(StringBounderUtils.asStringBounder(g2d));
	// final double deltaY = dim.getHeight() - dimBloc.getHeight() + ((TileText)
	// b).getFontSize2D();
	// result = Math.max(result, deltaY);
	// }
	// return result;
	// }

	private double maxDeltaY(UGraphic ug) {
		double result = 0;
		final XDimension2D dim = calculateDimension(ug.getStringBounder());
		for (TextBlock b : blocs) {
			if (b instanceof TileText == false)
				continue;

			final XDimension2D dimBloc = b.calculateDimension(ug.getStringBounder());
			final double deltaY = dim.getHeight() - dimBloc.getHeight() + ((TileText) b).getFontSize2D();
			result = Math.max(result, deltaY);
		}
		return result;
	}

	public void drawU(UGraphic ug) {
		final double deltaY = maxDeltaY(ug);
		final StringBounder stringBounder = ug.getStringBounder();
		final XDimension2D dim = calculateDimension(stringBounder);
		double x = 0;
		for (TextBlock b : blocs) {
			if (b instanceof TileText) {
				b.drawU(ug.apply(new UTranslate(x, deltaY)));
			} else {
				final double dy = dim.getHeight() - b.calculateDimension(stringBounder).getHeight();
				b.drawU(ug.apply(new UTranslate(x, dy)));
			}
			x += b.calculateDimension(stringBounder).getWidth();
		}
	}

	public HorizontalAlignment getHorizontalAlignment() {
		return horizontalAlignment;
	}

}