DriverPathG2d.java

/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
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 * under the terms of the GNU General Public License as published by
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 * PlantUML distributed in the hope that it will be useful, but
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 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
 * License for more details.
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 * License along with this library; if not, write to the Free Software
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 * Original Author:  Arnaud Roques
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package net.sourceforge.plantuml.klimt.drawing.g2d;

import java.awt.Graphics2D;
import java.awt.Paint;

import net.sourceforge.plantuml.klimt.UParam;
import net.sourceforge.plantuml.klimt.UPath;
import net.sourceforge.plantuml.klimt.color.ColorMapper;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColorGradient;
import net.sourceforge.plantuml.klimt.color.HColorLinearGradient;
import net.sourceforge.plantuml.klimt.drawing.UDriver;
import net.sourceforge.plantuml.klimt.geom.MinMax;
import net.sourceforge.plantuml.klimt.geom.USegment;
import net.sourceforge.plantuml.klimt.geom.USegmentType;

public class DriverPathG2d extends DriverShadowedG2d implements UDriver<UPath, Graphics2D> {

	private final double dpiFactor;

	public DriverPathG2d(double dpiFactor) {
		this.dpiFactor = dpiFactor;
	}

	public void draw(UPath shape, final double x, final double y, ColorMapper mapper, UParam param, Graphics2D g2d) {
		DriverLineG2d.manageStroke(param, g2d);

		final HColor back = param.getBackcolor();
		final HColor color = param.getColor();

		final ExtendedGeneralPath p = new ExtendedGeneralPath();
		MinMax minMax = MinMax.getEmpty(false);
		minMax = minMax.addPoint(x, y);
		for (USegment seg : shape) {
			final USegmentType type = seg.getSegmentType();
			final double coord[] = seg.getCoord();
			if (type == USegmentType.SEG_MOVETO) {
				p.moveTo(x + coord[0], y + coord[1]);
				minMax = minMax.addPoint(x + coord[0], y + coord[1]);
			} else if (type == USegmentType.SEG_LINETO) {
				p.lineTo(x + coord[0], y + coord[1]);
				minMax = minMax.addPoint(x + coord[0], y + coord[1]);
			} else if (type == USegmentType.SEG_CUBICTO) {
				p.curveTo(x + coord[0], y + coord[1], x + coord[2], y + coord[3], x + coord[4], y + coord[5]);
				minMax = minMax.addPoint(x + coord[4], y + coord[5]);
			} else if (type == USegmentType.SEG_ARCTO) {
				p.arcTo(coord[0], coord[1], coord[2], coord[3] != 0, coord[4] != 0, x + coord[5], y + coord[6]);
			} else {
				throw new UnsupportedOperationException();
			}
		}

		// Shadow
		if (shape.getDeltaShadow() != 0)
			if (back == null || back.isTransparent())
				drawOnlyLineShadowSpecial(g2d, p, shape.getDeltaShadow(), dpiFactor);
			else
				drawShadow(g2d, p, shape.getDeltaShadow(), dpiFactor);

		if (back instanceof HColorGradient || back instanceof HColorLinearGradient) {
			final double width = minMax.getMaxX() - minMax.getMinX();
			final double height = minMax.getMaxY() - minMax.getMinY();
			final Paint paint = DriverRectangleG2d.getPaintGradient(minMax.getMinX(), minMax.getMinY(), mapper, width, height,
					back);
			g2d.setPaint(paint);
			g2d.fill(p);
		} else if (back.isTransparent() == false) {
			g2d.setColor(back.toColor(mapper).toAwtColor());
			g2d.fill(p);
		}

		if (color.isTransparent() == false && color.equals(back) == false) {
			g2d.setColor(color.toColor(mapper).toAwtColor());
			g2d.draw(p);
		}
	}

}