net.sourceforge.plantuml.klimt.drawing.svg.DriverEllipseSvg Maven / Gradle / Ivy

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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
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 * (C) Copyright 2009-2024, Arnaud Roques
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 * Project Info:  https://plantuml.com
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 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
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 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
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 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this GPL v2 license.
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 * The generated images can then be used without any reference to the GPL v2 license.
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 * although this will be appreciated by the PlantUML team.
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 * by any license, then the generated images are logically covered
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 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
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 * Icons provided by OpenIconic :  https://useiconic.com/open
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 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
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 */
package net.sourceforge.plantuml.klimt.drawing.svg;

import net.sourceforge.plantuml.klimt.ClipContainer;
import net.sourceforge.plantuml.klimt.UClip;
import net.sourceforge.plantuml.klimt.UParam;
import net.sourceforge.plantuml.klimt.color.ColorMapper;
import net.sourceforge.plantuml.klimt.drawing.UDriver;
import net.sourceforge.plantuml.klimt.shape.UEllipse;

public class DriverEllipseSvg implements UDriver {
    // ::remove file when __HAXE__

	private final ClipContainer clipContainer;

	public DriverEllipseSvg(ClipContainer clipContainer) {
		this.clipContainer = clipContainer;
	}

	public void draw(UEllipse shape, double x, double y, ColorMapper mapper, UParam param, SvgGraphics svg) {
		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;
			}
		}

		DriverRectangleSvg.applyStrokeColor(svg, mapper, param);
		DriverRectangleSvg.applyFillColor(svg, mapper, param);

		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 {
			start = start + 90;
			if (extend > 0) {
				// http://www.itk.ilstu.edu/faculty/javila/SVG/SVG_drawing1/elliptical_curve.htm
				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.svgArcEllipse(width / 2, height / 2, x1, y1, x2, y2);
			} else {
				final double x1 = cx + Math.sin((start + extend) * Math.PI / 180.) * width / 2;
				final double y1 = cy + Math.cos((start + extend) * Math.PI / 180.) * height / 2;
				final double x2 = cx + Math.sin(start * Math.PI / 180.) * width / 2;
				final double y2 = cy + Math.cos(start * Math.PI / 180.) * height / 2;
				svg.svgArcEllipse(width / 2, height / 2, x1, y1, x2, y2);

			}
		}
	}

}