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/* ========================================================================
* 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.ugraphic.svg;
import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.HtmlColorGradient;
import net.sourceforge.plantuml.graphic.HtmlColorTransparent;
import net.sourceforge.plantuml.svg.SvgGraphics;
import net.sourceforge.plantuml.ugraphic.ClipContainer;
import net.sourceforge.plantuml.ugraphic.ColorMapper;
import net.sourceforge.plantuml.ugraphic.UClip;
import net.sourceforge.plantuml.ugraphic.UDriver;
import net.sourceforge.plantuml.ugraphic.UEllipse;
import net.sourceforge.plantuml.ugraphic.UParam;
import net.sourceforge.plantuml.ugraphic.UShape;
public class DriverEllipseSvg implements UDriver<SvgGraphics> {
private final ClipContainer clipContainer;
public DriverEllipseSvg(ClipContainer clipContainer) {
this.clipContainer = clipContainer;
}
public void draw(UShape ushape, double x, double y, ColorMapper mapper, UParam param, SvgGraphics svg) {
final UEllipse shape = (UEllipse) ushape;
final double width = shape.getWidth();
final double height = shape.getHeight();
final UClip clip = clipContainer.getClip();
if (clip != null) {
if (clip.isInside(x, y) == false) {
return;
}
if (clip.isInside(x + width, y + height) == false) {
return;
}
}
final HtmlColor back = param.getBackcolor();
if (back instanceof HtmlColorGradient) {
final HtmlColorGradient gr = (HtmlColorGradient) back;
final String id = svg.createSvgGradient(StringUtils.getAsHtml(mapper.getMappedColor(gr.getColor1())),
StringUtils.getAsHtml(mapper.getMappedColor(gr.getColor2())), gr.getPolicy());
svg.setFillColor("url(#" + id + ")");
} else if (back == null || back instanceof HtmlColorTransparent) {
svg.setFillColor("none");
} else {
final String backcolor = StringUtils.getAsSvg(mapper, back);
svg.setFillColor(backcolor);
}
DriverRectangleSvg.applyColor(svg, mapper, param);
// svg.setStrokeColor(StringUtils.getAsSvg(mapper, param.getColor()));
svg.setStrokeWidth(param.getStroke().getThickness(), param.getStroke().getDasharraySvg());
double start = shape.getStart();
final double extend = shape.getExtend();
final double cx = x + width / 2;
final double cy = y + height / 2;
if (start == 0 && extend == 0) {
svg.svgEllipse(cx, cy, width / 2, height / 2, shape.getDeltaShadow());
} else {
// http://www.itk.ilstu.edu/faculty/javila/SVG/SVG_drawing1/elliptical_curve.htm
start = start + 90;
final double x1 = cx + Math.sin(start * Math.PI / 180.) * width / 2;
final double y1 = cy + Math.cos(start * Math.PI / 180.) * height / 2;
final double x2 = cx + Math.sin((start + extend) * Math.PI / 180.) * width / 2;
final double y2 = cy + Math.cos((start + extend) * Math.PI / 180.) * height / 2;
// svg.svgEllipse(x1, y1, 1, 1, 0);
// svg.svgEllipse(x2, y2, 1, 1, 0);
svg.svgArcEllipse(width / 2, height / 2, x1, y1, x2, y2);
}
}
}
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