/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2020, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://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.sprite;

import java.awt.geom.Dimension2D;
import java.io.IOException;
import java.io.OutputStream;

import net.sourceforge.plantuml.Dimension2DDouble;
import net.sourceforge.plantuml.FileFormatOption;
import net.sourceforge.plantuml.ISkinSimple;
import net.sourceforge.plantuml.UmlDiagram;
import net.sourceforge.plantuml.UmlDiagramType;
import net.sourceforge.plantuml.core.DiagramDescription;
import net.sourceforge.plantuml.core.ImageData;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.AbstractTextBlock;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.HorizontalAlignment;
import net.sourceforge.plantuml.graphic.HtmlColorUtils;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.graphic.TextBlockUtils;
import net.sourceforge.plantuml.ugraphic.ImageBuilder;
import net.sourceforge.plantuml.ugraphic.UFont;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UTranslate;

public class ListSpriteDiagram extends UmlDiagram {

	public ListSpriteDiagram(ISkinSimple skinParam) {
		super(skinParam);
	}

	public DiagramDescription getDescription() {
		return new DiagramDescription("(Sprites)");
	}

	@Override
	public UmlDiagramType getUmlDiagramType() {
		return UmlDiagramType.HELP;
	}

	@Override
	protected ImageData exportDiagramInternal(OutputStream os, int index, FileFormatOption fileFormatOption)
			throws IOException {

		final TextBlock result = getTable();
		final double margin = 10;
		final double dpiFactor = 1;

		final ImageBuilder imageBuilder = new ImageBuilder(getSkinParam(), dpiFactor,
				fileFormatOption.isWithMetadata() ? getMetadata() : null, getWarningOrError(), margin, margin,
				getAnimation());
		imageBuilder.setUDrawable(result);

		return imageBuilder.writeImageTOBEMOVED(fileFormatOption, seed(), os);
	}

	private TextBlock getTable() {
		return new AbstractTextBlock() {

			public void drawU(UGraphic ug) {
				double x = 0;
				double y = 0;
				double rawHeight = 0;
				for (String n : getSkinParam().getAllSpriteNames()) {
					final Sprite sprite = getSkinParam().getSprite(n);
					TextBlock blockName = Display.create(n).create(
							FontConfiguration.blackBlueTrue(UFont.sansSerif(14)), HorizontalAlignment.LEFT,
							getSkinParam());
					TextBlock tb = sprite.asTextBlock(HtmlColorUtils.BLACK, 1.0);
					tb = TextBlockUtils.mergeTB(tb, blockName, HorizontalAlignment.CENTER);
					tb.drawU(ug.apply(new UTranslate(x, y)));
					final Dimension2D dim = tb.calculateDimension(ug.getStringBounder());
					rawHeight = Math.max(rawHeight, dim.getHeight());
					x += dim.getWidth();
					x += 30;
					if (x > 1024) {
						x = 0;
						y += rawHeight + 50;
						rawHeight = 0;
					}
				}
			}

			public Dimension2D calculateDimension(StringBounder stringBounder) {
				return new Dimension2DDouble(1024, 1024);
			}
		};
	}
}
