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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
 *
 */
package net.sourceforge.plantuml.ugraphic.svg;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;

import javax.xml.transform.TransformerException;

import net.sourceforge.plantuml.Url;
import net.sourceforge.plantuml.graphic.HtmlColorGradient;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.StringBounderUtils;
import net.sourceforge.plantuml.posimo.DotPath;
import net.sourceforge.plantuml.svg.SvgGraphics;
import net.sourceforge.plantuml.ugraphic.AbstractCommonUGraphic;
import net.sourceforge.plantuml.ugraphic.AbstractUGraphic;
import net.sourceforge.plantuml.ugraphic.ClipContainer;
import net.sourceforge.plantuml.ugraphic.ColorMapper;
import net.sourceforge.plantuml.ugraphic.UCenteredCharacter;
import net.sourceforge.plantuml.ugraphic.UEllipse;
import net.sourceforge.plantuml.ugraphic.UImage;
import net.sourceforge.plantuml.ugraphic.UImageSvg;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UPath;
import net.sourceforge.plantuml.ugraphic.UPolygon;
import net.sourceforge.plantuml.ugraphic.URectangle;
import net.sourceforge.plantuml.ugraphic.UText;

public class UGraphicSvg extends AbstractUGraphic implements ClipContainer {

	final static Graphics2D imDummy = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB).createGraphics();

	private final StringBounder stringBounder;
	private final boolean textAsPath2;

	@Override
	protected AbstractCommonUGraphic copyUGraphic() {
		return new UGraphicSvg(this);
	}

	private UGraphicSvg(UGraphicSvg other) {
		super(other);
		this.stringBounder = other.stringBounder;
		this.textAsPath2 = other.textAsPath2;
		register();
	}

	public UGraphicSvg(ColorMapper colorMapper, String backcolor, boolean textAsPath) {
		this(colorMapper, new SvgGraphics(backcolor), textAsPath);
	}

	public UGraphicSvg(ColorMapper colorMapper, boolean textAsPath) {
		this(colorMapper, new SvgGraphics(), textAsPath);
	}

	public UGraphicSvg(ColorMapper mapper, HtmlColorGradient gr, boolean textAsPath) {
		this(mapper, new SvgGraphics(), textAsPath);

		final SvgGraphics svg = getGraphicObject();
		svg.paintBackcolorGradient(mapper, gr);
	}

	@Override
	protected boolean manageHiddenAutomatically() {
		return false;
	}

	@Override
	protected void beforeDraw() {
		getGraphicObject().setHidden(getParam().isHidden());
	}

	@Override
	protected void afterDraw() {
		getGraphicObject().setHidden(false);
	}

	private UGraphicSvg(ColorMapper colorMapper, SvgGraphics svg, boolean textAsPath) {
		super(colorMapper, svg);
		stringBounder = StringBounderUtils.asStringBounder(imDummy);
		this.textAsPath2 = textAsPath;
		register();
	}

	private void register() {
		registerDriver(URectangle.class, new DriverRectangleSvg(this));
		if (textAsPath2) {
			registerDriver(UText.class, new DriverTextAsPathSvg(imDummy.getFontRenderContext(), this));
		} else {
			registerDriver(UText.class, new DriverTextSvg(getStringBounder(), this));
		}
		registerDriver(ULine.class, new DriverLineSvg(this));
		registerDriver(UPolygon.class, new DriverPolygonSvg(this));
		registerDriver(UEllipse.class, new DriverEllipseSvg());
		registerDriver(UImage.class, new DriverImagePng());
		registerDriver(UImageSvg.class, new DriverImageSvgSvg());
		registerDriver(UPath.class, new DriverPathSvg(this));
		registerDriver(DotPath.class, new DriverDotPathSvg());
		registerDriver(UCenteredCharacter.class, new DriverCenteredCharacterSvg());
	}

	public SvgGraphics getSvgGraphics() {
		return this.getGraphicObject();
	}

	public StringBounder getStringBounder() {
		return stringBounder;
	}

	public void createXml(OutputStream os) throws IOException {
		try {
			getGraphicObject().createXml(os);
		} catch (TransformerException e) {
			throw new IOException(e.toString());
		}
	}

	public void startUrl(Url url) {
		getGraphicObject().openLink(url.getUrl(), url.getTooltip());
	}

	public void closeAction() {
		getGraphicObject().closeLink();
	}

	public void writeImage(OutputStream os, String metadata, int dpi) throws IOException {
		createXml(os);
	}

	// @Override
	// public String startHiddenGroup() {
	// getGraphicObject().startHiddenGroup();
	// return null;
	// }
	//
	// @Override
	// public String closeHiddenGroup() {
	// getGraphicObject().closeHiddenGroup();
	// return null;
	// }

}