/* ========================================================================
 * 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.drawing.txt;

import static java.nio.charset.StandardCharsets.UTF_8;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

import net.sourceforge.plantuml.asciiart.TranslatedCharArea;
import net.sourceforge.plantuml.asciiart.UmlCharArea;
import net.sourceforge.plantuml.asciiart.UmlCharAreaImpl;
import net.sourceforge.plantuml.klimt.ClipContainer;
import net.sourceforge.plantuml.klimt.UShape;
import net.sourceforge.plantuml.klimt.color.ColorMapper;
import net.sourceforge.plantuml.klimt.color.HColors;
import net.sourceforge.plantuml.klimt.drawing.AbstractCommonUGraphic;
import net.sourceforge.plantuml.klimt.drawing.debug.StringBounderDebug;
import net.sourceforge.plantuml.klimt.font.FontStyle;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.UImage;
import net.sourceforge.plantuml.klimt.shape.UText;
import net.sourceforge.plantuml.security.SecurityUtils;

public class UGraphicTxt extends AbstractCommonUGraphic implements ClipContainer {

	private final UmlCharArea charArea;

	@Override
	protected AbstractCommonUGraphic copyUGraphic() {
		final UGraphicTxt result = new UGraphicTxt(this);
		return result;
	}

	private UGraphicTxt(UGraphicTxt other) {
		super(other.getStringBounder());
		basicCopy(other);
		this.charArea = other.charArea;
	}

	public UGraphicTxt() {
		super(new StringBounderDebug());
		basicCopy(HColors.BLACK, ColorMapper.IDENTITY);
		this.charArea = new UmlCharAreaImpl();
	}

	public void draw(UShape shape) {
		// final UClip clip = getClip();
		if (shape instanceof UText) {
			final UText txt = (UText) shape;
			final int y = ((int) (getTranslateY() + txt.getDescent(getStringBounder()))) / 10;
			if (txt.getFontConfiguration().containsStyle(FontStyle.WAVE)) {
				charArea.drawHLine('^', y, getDx(), txt.getText().length());
				charArea.drawStringLR(txt.getText(), getDx(), y + 1);
			} else {
				charArea.drawStringLR(txt.getText(), getDx(), y);
			}
			return;
		} else if (shape instanceof UImage) {
			return;
		}
		return;
		// throw new UnsupportedOperationException("cl=" + shape.getClass());
	}

	public final UmlCharArea getCharArea() {
		return new TranslatedCharArea(charArea, getDx(), getDy());
	}

	private int getDy() {
		return (int) getTranslateY();
	}

	private int getDx() {
		return (int) getTranslateX();
	}

	public XDimension2D getDimension() {
		return new XDimension2D(0, 0);
	}

	@Override
	public void writeToStream(OutputStream os, String metadata, int dpi) throws IOException {
		final PrintStream ps = SecurityUtils.createPrintStream(os, true, UTF_8);
		getCharArea().print(ps);
	}

}
