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PlantUML is a component that allows to quickly write diagrams from text.

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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
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 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the MIT License.
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 * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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
 *
 * 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 MIT license.
 *
 * The generated images can then be used without any reference to the MIT 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 )
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 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
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 */
package net.sourceforge.plantuml.svek;

import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import net.atmp.CucaDiagram;
import net.sourceforge.plantuml.AnnotatedBuilder;
import net.sourceforge.plantuml.AnnotatedWorker;
import net.sourceforge.plantuml.FileFormatOption;
import net.sourceforge.plantuml.abel.Link;
import net.sourceforge.plantuml.core.ImageData;
import net.sourceforge.plantuml.dot.CucaDiagramSimplifierActivity;
import net.sourceforge.plantuml.dot.CucaDiagramSimplifierState;
import net.sourceforge.plantuml.dot.DotData;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.log.Logme;
import net.sourceforge.plantuml.skin.UmlDiagramType;

public final class CucaDiagramFileMakerSvek extends CucaDiagramFileMaker {
	// ::remove file when __CORE__

	public CucaDiagramFileMakerSvek(CucaDiagram diagram) throws IOException {
		super(diagram);

	}

	public ImageData createFile(OutputStream os, List dotStrings, FileFormatOption fileFormatOption)
			throws IOException {
		try {
			return createFileInternal(os, dotStrings, fileFormatOption);
		} catch (InterruptedException e) {
			Logme.error(e);
			throw new IOException(e);
		}
	}

	@Override
	public void createOneGraphic(UGraphic ug) {
		throw new UnsupportedOperationException();
	}

	private ImageData createFileInternal(OutputStream os, List dotStrings, FileFormatOption fileFormatOption)
			throws IOException, InterruptedException {

		final StringBounder stringBounder = fileFormatOption.getDefaultStringBounder(diagram.getSkinParam());

		if (diagram.getUmlDiagramType() == UmlDiagramType.ACTIVITY)
			new CucaDiagramSimplifierActivity().simplify(diagram, stringBounder, DotMode.NORMAL);
		else if (diagram.getUmlDiagramType() == UmlDiagramType.STATE)
			new CucaDiagramSimplifierState().simplify(diagram, stringBounder, DotMode.NORMAL);

		final DotStringFactory dotStringFactory = new DotStringFactory(bibliotekon, clusterManager.getCurrent(),
				diagram.getUmlDiagramType(), diagram.getSkinParam());

		final DotData dotData = new DotData(diagram, diagram.getRootGroup(), getOrderedLinks(), diagram.leafs(),
				diagram, diagram);

		GraphvizImageBuilder imageBuilder = new GraphvizImageBuilder(dotData, diagram.getSource(), diagram.getPragma(),
				diagram.getUmlDiagramType().getStyleName(), DotMode.NORMAL, dotStringFactory, clusterManager);
		BaseFile basefile = null;
		if (fileFormatOption.isDebugSvek() && os instanceof NamedOutputStream)
			basefile = ((NamedOutputStream) os).getBasefile();

		TextBlock result = imageBuilder.buildImage(stringBounder, basefile, diagram.getDotStringSkek(),
				fileFormatOption.isDebugSvek());
		if (result instanceof GraphvizCrash) {
			imageBuilder = new GraphvizImageBuilder(dotData, diagram.getSource(), diagram.getPragma(),
					diagram.getUmlDiagramType().getStyleName(), DotMode.NO_LEFT_RIGHT_AND_XLABEL, dotStringFactory,
					clusterManager);
			result = imageBuilder.buildImage(stringBounder, basefile, diagram.getDotStringSkek(),
					fileFormatOption.isDebugSvek());
		}
		// TODO There is something strange with the left margin of mainframe, I think
		// because AnnotatedWorker is used here
		// It can be looked at in another PR
		final AnnotatedBuilder builder = new AnnotatedBuilder(diagram, diagram.getSkinParam(), stringBounder);
		result = new AnnotatedWorker(diagram, diagram.getSkinParam(), stringBounder, builder).addAdd(result);

		// TODO UmlDiagram.getWarningOrError() looks similar so this might be
		// simplified? - will leave for a separate PR
		final String widthwarning = diagram.getSkinParam().getValue("widthwarning");
		String warningOrError = null;
		if (widthwarning != null && widthwarning.matches("\\d+"))
			warningOrError = imageBuilder.getWarningOrError(Integer.parseInt(widthwarning));

		// Sorry about this hack. There is a side effect in
		// SvekResult::calculateDimension()
		result.calculateDimension(stringBounder); // Ensure text near the margins is not cut off

		return diagram.createImageBuilder(fileFormatOption).annotations(false) // backwards compatibility
																				// (AnnotatedWorker is used above)
				.drawable(result).status(result instanceof GraphvizCrash ? 503 : 0).warningOrError(warningOrError)
				.write(os);
	}

	private List getOrderedLinks() {
		final List result = new ArrayList<>();
		for (Link l : diagram.getLinks())
			addLinkNew(result, l);

		return result;
	}

	private void addLinkNew(List result, Link link) {
		for (int i = 0; i < result.size(); i++) {
			final Link other = result.get(i);
			if (other.sameConnections(link)) {
				while (i < result.size() && result.get(i).sameConnections(link))
					i++;

				if (i == result.size())
					result.add(link);
				else
					result.add(i, link);

				return;
			}
		}
		result.add(link);
	}

}




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