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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
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 * |      PlantUML : a free UML diagram generator
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package net.sourceforge.plantuml.sdot;

import h.ST_Agedge_s;
import h.ST_Agedgeinfo_t;
import h.ST_bezier;
import h.ST_pointf;
import h.ST_splines;
import h.ST_textlabel_t;
import net.sourceforge.plantuml.abel.Link;
import net.sourceforge.plantuml.abel.LinkStrategy;
import net.sourceforge.plantuml.cruise.XAbstractEdge;
import net.sourceforge.plantuml.cruise.XEdge;
import net.sourceforge.plantuml.decoration.LinkType;
import net.sourceforge.plantuml.decoration.Rainbow;
import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.ColorType;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColors;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.geom.RectangleArea;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.DotPath;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.klimt.shape.UDrawable;
import net.sourceforge.plantuml.klimt.shape.URectangle;
import net.sourceforge.plantuml.skin.LineParam;
import net.sourceforge.plantuml.skin.UmlDiagramType;
import net.sourceforge.plantuml.style.ISkinParam;
import net.sourceforge.plantuml.style.SName;
import net.sourceforge.plantuml.style.Style;
import net.sourceforge.plantuml.style.StyleSignature;
import net.sourceforge.plantuml.style.StyleSignatureBasic;
import net.sourceforge.plantuml.svek.Bibliotekon;
import net.sourceforge.plantuml.svek.Cluster;
import net.sourceforge.plantuml.svek.extremity.Extremity;
import net.sourceforge.plantuml.svek.extremity.ExtremityFactory;
import net.sourceforge.plantuml.url.Url;
import net.sourceforge.plantuml.utils.Direction;

public class SmetanaEdge extends XAbstractEdge implements XEdge, UDrawable {

	private final ST_Agedge_s edge;
	private final YMirror ymirror;
	private final TextBlock label;
	private final TextBlock headLabel;
	private final TextBlock tailLabel;

	public SmetanaEdge(Link link, ST_Agedge_s edge, YMirror ymirror, TextBlock label,
			TextBlock tailLabel, TextBlock headLabel, Bibliotekon bibliotekon, ISkinParam skinParam) {
		super(link, skinParam, bibliotekon);
		this.edge = edge;
		this.ymirror = ymirror;
		this.label = label;
		this.tailLabel = tailLabel;
		this.headLabel = headLabel;
	}

	private LinkStrategy getLinkStrategy() {
		return link.getLinkStrategy();
	}

	public void drawU(UGraphic ug) {

		if (link.isHidden())
			return;

		DotPath dotPath = getDotPathInternal();

		if (dotPath != null) {
			if (ymirror != null)
				dotPath = ymirror.getMirrored(dotPath);

			RectangleArea rectangleArea1 = null;
			RectangleArea rectangleArea2 = null;
			if (link.getEntity1().isGroup()) {
				final Cluster cluster1 = bibliotekon.getCluster(link.getEntity1());
				rectangleArea1 = cluster1.getRectangleArea();

			}
			if (link.getEntity2().isGroup()) {
				final Cluster cluster2 = bibliotekon.getCluster(link.getEntity2());
				rectangleArea2 = cluster2.getRectangleArea();
			}

			dotPath = dotPath.simulateCompound(rectangleArea2, rectangleArea1);

			final Style styleLine = getStyle();

			final Rainbow rainbow = Rainbow.build(styleLine, skinParam.getIHtmlColorSet());

			// Warning: duplicated from SmetanaPath and SvekEdge
			HColor arrowHeadColor = rainbow.getArrowHeadColor();
			HColor color = rainbow.getColor();

			if (this.link.getColors() != null) {
				final HColor newColor = this.link.getColors().getColor(ColorType.ARROW, ColorType.LINE);
				if (newColor != null) {
					color = newColor;
					arrowHeadColor = color;
				}
			} else if (this.link.getSpecificColor() != null) {
				color = this.link.getSpecificColor();
				arrowHeadColor = color;
			}

			ug = ug.apply(HColors.none().bg()).apply(color);
			final LinkType linkType = link.getType();
			final UStroke suggestedStroke = styleLine.getStroke();
			final UStroke defaultThickness = skinParam.getThickness(LineParam.arrow, null);

			UStroke stroke;
			if (suggestedStroke == null || linkType.getStyle().isNormal() == false)
				stroke = linkType.getStroke3(defaultThickness);
			else
				stroke = linkType.getStroke3(suggestedStroke);

			if (link.getColors() != null && link.getColors().getSpecificLineStroke() != null)
				stroke = link.getColors().getSpecificLineStroke();

			final Url url = link.getUrl();
			if (url != null)
				ug.startUrl(url);

			printExtremityAtStart(dotPath, ug.apply(color));
			printExtremityAtEnd(dotPath, ug.apply(color));
			ug.apply(stroke).apply(color).draw(dotPath);

			if (url != null)
				ug.closeUrl();

		}
		if (getLabelRectangleTranslate("label") != null)
			label.drawU(ug.apply(getLabelRectangleTranslate("label")));

		if (getLabelRectangleTranslate("head_label") != null)
			headLabel.drawU(ug.apply(getLabelRectangleTranslate("head_label")));

		if (getLabelRectangleTranslate("tail_label") != null)
			tailLabel.drawU(ug.apply(getLabelRectangleTranslate("tail_label")));

		// printDebug(ug);

	}

	private Style getStyle() {
		final StyleSignature result = StyleSignatureBasic
				.of(SName.root, SName.element, diagramType().getStyleName(), SName.arrow)
				.withTOBECHANGED(link.getStereotype());
		return result.getMergedStyle(skinParam.getCurrentStyleBuilder());
	}

	public XPoint2D getStartPoint() {
		final DotPath dotPath = getDotPathInternal();
		XPoint2D pt = dotPath.getStartPoint();
		if (ymirror != null)
			pt = ymirror.getMirrored(pt);

		return pt;
	}

	public XPoint2D getEndPoint() {
		final DotPath dotPath = getDotPathInternal();
		XPoint2D pt = dotPath.getEndPoint();
		if (ymirror != null)
			pt = ymirror.getMirrored(pt);

		return pt;
	}

	private void printExtremityAtStart(DotPath dotPath, UGraphic ug) {
		final ExtremityFactory extremityFactory2 = link.getType().getDecor2()
				.getExtremityFactoryComplete(skinParam.getBackgroundColor());
		if (extremityFactory2 == null)
			return;

		final XPoint2D p0 = dotPath.getStartPoint();
		final double startAngle = dotPath.getStartAngle() + Math.PI;

		try {
			final Extremity extremity2 = (Extremity) extremityFactory2.createUDrawable(p0, startAngle, null);
			if (extremity2 != null) {
				if (getLinkStrategy() == LinkStrategy.SIMPLIER) {
					final double decorationLength = extremity2.getDecorationLength();
					dotPath.moveStartPoint(new UTranslate(decorationLength, 0).rotate(startAngle - Math.PI));
				}
				extremity2.drawU(ug);
			}

		} catch (UnsupportedOperationException e) {
			e.printStackTrace();
			System.err.println("CANNOT DRAW printExtremityAtStart");
		}
	}

	private void printExtremityAtEnd(DotPath dotPath, UGraphic ug) {
		final ExtremityFactory extremityFactory1 = link.getType().getDecor1()
				.getExtremityFactoryComplete(skinParam.getBackgroundColor());
		if (extremityFactory1 == null)
			return;

		final XPoint2D p0 = dotPath.getEndPoint();
		final double endAngle = dotPath.getEndAngle();

		try {
			final Extremity extremity1 = (Extremity) extremityFactory1.createUDrawable(p0, endAngle, null);
			if (extremity1 != null) {
				if (getLinkStrategy() == LinkStrategy.SIMPLIER) {
					final double decorationLength = extremity1.getDecorationLength();
					dotPath.moveEndPoint(new UTranslate(decorationLength, 0).rotate(endAngle - Math.PI));
				}
				extremity1.drawU(ug);
			}

		} catch (UnsupportedOperationException e) {
			e.printStackTrace();
			System.err.println("CANNOT DRAW printExtremityAtEnd");
		}
	}

//	private void printDebug(UGraphic ug) {
//		ug = ug.apply(HColors.BLUE).apply(HColors.BLUE.bg());
//		final ST_splines splines = getSplines(edge);
//		final ST_bezier beziers = splines.list.get__(0);
//		for (int i = 0; i < beziers.size; i++) {
//			XPoint2D pt = getPoint(splines, i);
//			if (ymirror != null)
//				pt = ymirror.getMirrored(pt);
//
//			ug.apply(UTranslate.point(pt).compose(new UTranslate(-1, -1))).draw(UEllipse.build(3, 3));
//		}
//		if (getLabelRectangleTranslate("label") != null && getLabelURectangle() != null) {
//			ug = ug.apply(HColors.BLUE).apply(HColors.none().bg());
//			ug.apply(getLabelRectangleTranslate("label")).draw(getLabelURectangle());
//		}
//
//	}

	private URectangle getLabelURectangle() {
		final ST_Agedgeinfo_t data = (ST_Agedgeinfo_t) edge.data.castTo(ST_Agedgeinfo_t.class);
		ST_textlabel_t label = (ST_textlabel_t) data.label;
		if (label == null)
			return null;

		final BoxInfo boxInfo = BoxInfo.fromTextlabel(label);
		return URectangle.build(boxInfo.getDimension());
	}

	private UTranslate getLabelRectangleTranslate(String fieldName) {
		// final String fieldName = "label";
		final ST_Agedgeinfo_t data = (ST_Agedgeinfo_t) edge.data;
		ST_textlabel_t label = null;
		if (fieldName.equals("label"))
			label = data.label;
		else if (fieldName.equals("head_label"))
			label = data.head_label;
		else if (fieldName.equals("tail_label"))
			label = data.tail_label;

		if (label == null)
			return null;

		final BoxInfo boxInfo = BoxInfo.fromTextlabel(label);

		if (ymirror == null)
			return new UTranslate(boxInfo.getLowerLeft().getX(), boxInfo.getUpperRight().getY());

		return ymirror.getMirrored(UTranslate.point(boxInfo.getLowerLeft()));
	}

	// private DotPath dotPath;

	private DotPath getDotPathInternal() {
//		if (dotPath != null)
//			return dotPath;

		final ST_Agedgeinfo_t data = (ST_Agedgeinfo_t) edge.data;
		final ST_splines splines = data.spl;

		DotPath dotPath = new DotPath();
		final ST_bezier beziers = (ST_bezier) splines.list.get__(0);
		final XPoint2D pt1 = getPoint(splines, 0);
		final XPoint2D pt2 = getPoint(splines, 1);
		final XPoint2D pt3 = getPoint(splines, 2);
		final XPoint2D pt4 = getPoint(splines, 3);
		dotPath = dotPath.addCurve(pt1, pt2, pt3, pt4);
		final int n = beziers.size;
		for (int i = 4; i < n; i += 3) {
			final XPoint2D ppt2 = getPoint(splines, i);
			final XPoint2D ppt3 = getPoint(splines, i + 1);
			final XPoint2D ppt4 = getPoint(splines, i + 2);
			dotPath = dotPath.addCurve(ppt2, ppt3, ppt4);
		}

		return dotPath;
	}

	private XPoint2D getPoint(ST_splines splines, int i) {
		final ST_bezier beziers = (ST_bezier) splines.list.get__(0);
		final ST_pointf pt = beziers.list.get__(i);
		return new XPoint2D(pt.x, pt.y);
	}

	@Override
	public void moveDelta(double deltaX, double deltaY) {
		throw new UnsupportedOperationException("refactor in progress");
		
	}

	@Override
	public boolean isHidden() {
		throw new UnsupportedOperationException("refactor in progress");
	}

	@Override
	public Direction getArrowDirection() {
		throw new UnsupportedOperationException("refactor in progress");
	}

	@Override
	public double getArrowDirectionInRadian() {
		throw new UnsupportedOperationException("refactor in progress");
	}

}




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