net.sourceforge.plantuml.sequencediagram.LinkAnchor 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
 * |
 * +=======================================================================
 *
 * (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/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the Eclipse Public License.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [Eclipse Public License - v 1.0]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * 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.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * 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
 *
 * 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 EPL license.
 *
 * The generated images can then be used without any reference to the EPL license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * 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 )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.sequencediagram;

import net.sourceforge.plantuml.activitydiagram3.ftile.Snake;
import net.sourceforge.plantuml.decoration.Rainbow;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.FontConfiguration;
import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.sequencediagram.teoz.CommonTile;
import net.sourceforge.plantuml.sequencediagram.teoz.YGauge;
import net.sourceforge.plantuml.style.ISkinParam;
import net.sourceforge.plantuml.style.PName;
import net.sourceforge.plantuml.style.SName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.style.StyleSignatureBasic;

public class LinkAnchor {

	private final String anchor1;
	private final String anchor2;
	private final String message;

	public LinkAnchor(String anchor1, String anchor2, String message) {
		this.anchor1 = anchor1;
		this.anchor2 = anchor2;
		this.message = message;
	}

	@Override
	public String toString() {
		return anchor1 + "<->" + anchor2 + " " + message;
	}

	public final String getAnchor1() {
		return anchor1;
	}

	public final String getAnchor2() {
		return anchor2;
	}

	public final String getMessage() {
		return message;
	}

	public void drawAnchor(UGraphic ug, CommonTile tile1, CommonTile tile2, ISkinParam skinParam) {

		final double y1;
		final double y2;
		if (YGauge.USE_ME) {
			y1 = (tile1.getYGauge().getMin().getCurrentValue() + tile1.getYGauge().getMax().getCurrentValue()) / 2
					+ tile1.getContactPointRelative();
			y2 = (tile2.getYGauge().getMin().getCurrentValue() + tile2.getYGauge().getMax().getCurrentValue()) / 2
					+ tile2.getContactPointRelative();
		} else {
			y1 = tile1.getTimeHook().getValue() + tile1.getContactPointRelative();
			y2 = tile2.getTimeHook().getValue() + tile2.getContactPointRelative();
		}
		final double xx1 = tile1.getMiddleX();
		final double xx2 = tile2.getMiddleX();
		final double x = (xx1 + xx2) / 2;
		final double ymin = Math.min(y1, y2);
		final double ymax = Math.max(y1, y2);

		final StyleSignatureBasic signature = StyleSignatureBasic.of(SName.root, SName.element, SName.sequenceDiagram,
				SName.arrow);
		final Style style = signature.getMergedStyle(skinParam.getCurrentStyleBuilder());

		final HColor color = style.value(PName.LineColor).asColor(skinParam.getIHtmlColorSet());
		final FontConfiguration fontConfiguration = FontConfiguration.create(skinParam, style);

		final Rainbow rainbow = Rainbow.fromColor(color, null);

		final Display display = Display.getWithNewlines(message);
		final TextBlock title = display.create(fontConfiguration, HorizontalAlignment.CENTER, skinParam);
		final Snake snake = Snake.create(skinParam, skinParam.arrows().asToUp(), rainbow, skinParam.arrows().asToDown())
				.withLabel(title, HorizontalAlignment.CENTER);

		snake.addPoint(x, ymin + 2);
		snake.addPoint(x, ymax - 2);
		snake.drawInternal(ug);
	}

}