net.sourceforge.plantuml.activitydiagram3.ftile.EntityImageLegend Maven / Gradle / Ivy

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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 2009-2013, Arnaud Roques
 *
 * Project Info:  http://plantuml.sourceforge.net
 * 
 * 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.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * Original Author:  Arnaud Roques
 * 
 * Revision $Revision: 5183 $
 *
 */
package net.sourceforge.plantuml.activitydiagram3.ftile;

import java.awt.geom.Dimension2D;
import java.util.Collections;
import java.util.List;

import net.sourceforge.plantuml.ColorParam;
import net.sourceforge.plantuml.Dimension2DDouble;
import net.sourceforge.plantuml.FontParam;
import net.sourceforge.plantuml.ISkinParam;
import net.sourceforge.plantuml.Url;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.HorizontalAlignment;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.graphic.TextBlockUtils;
import net.sourceforge.plantuml.skin.rose.Rose;
import net.sourceforge.plantuml.ugraphic.UChangeBackColor;
import net.sourceforge.plantuml.ugraphic.UChangeColor;
import net.sourceforge.plantuml.ugraphic.UFont;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UPolygon;
import net.sourceforge.plantuml.ugraphic.UTranslate;

public class EntityImageLegend implements TextBlock {

	private final int cornersize = 10;
	private final HtmlColor noteBackgroundColor;
	private final HtmlColor borderColor;
	private final int marginX = 6;
	private final int marginY = 5;
	private final boolean withShadow;

	private final TextBlock textBlock;

	private EntityImageLegend(Display note, ISkinParam skinParam) {
		this.withShadow = false;
		final Rose rose = new Rose();

		noteBackgroundColor = rose.getHtmlColor(skinParam, ColorParam.legendBackground);

		borderColor = rose.getHtmlColor(skinParam, ColorParam.legendBorder);
		final HtmlColor fontColor = rose.getFontColor(skinParam, FontParam.LEGEND);
		final UFont fontNote = skinParam.getFont(FontParam.LEGEND, null);

		this.textBlock = TextBlockUtils.create(note, new FontConfiguration(fontNote, fontColor),
				HorizontalAlignment.LEFT, skinParam);
	}

	public static TextBlock create(Display legend, ISkinParam skinParam) {
		return TextBlockUtils.withMargin(new EntityImageLegend(legend, skinParam), 8, 8);
	}

	private double getTextHeight(StringBounder stringBounder) {
		final Dimension2D size = textBlock.calculateDimension(stringBounder);
		return size.getHeight() + 2 * marginY;
	}

	private double getPureTextWidth(StringBounder stringBounder) {
		final Dimension2D size = textBlock.calculateDimension(stringBounder);
		return size.getWidth();
	}

	private double getTextWidth(StringBounder stringBounder) {
		return getPureTextWidth(stringBounder) + 2 * marginX;
	}

	public Dimension2D calculateDimension(StringBounder stringBounder) {
		final double height = getTextHeight(stringBounder);
		final double width = getTextWidth(stringBounder);
		return new Dimension2DDouble(width + 1, height + 1);
	}

	public void drawU(UGraphic ug) {
		final StringBounder stringBounder = ug.getStringBounder();
		final UPolygon polygon = getPolygonNormal(stringBounder);
		if (withShadow) {
			polygon.setDeltaShadow(4);
		}
		ug = ug.apply(new UChangeBackColor(noteBackgroundColor)).apply(new UChangeColor(borderColor));
		ug.draw(polygon);
		textBlock.drawU(ug.apply(new UTranslate(marginX, marginY)));
	}

	private UPolygon getPolygonNormal(final StringBounder stringBounder) {
		final UPolygon polygon = new UPolygon();
		polygon.addPoint(0, 0);
		polygon.addPoint(0, getTextHeight(stringBounder));
		final double width = getTextWidth(stringBounder);
		polygon.addPoint(width, getTextHeight(stringBounder));
		polygon.addPoint(width, 0);
		polygon.addPoint(0, 0);
		return polygon;
	}

	public List getUrls() {
		return Collections.emptyList();
	}

}