/* ======================================================================== * PlantUML : a free UML diagram generator * ======================================================================== * * (C) Copyright 2009-2023, 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.svek.image;import java.awt.geom.Point2D;import java.util.EnumMap;import java.util.Map;import net.sourceforge.plantuml.ColorParam;import net.sourceforge.plantuml.FontParam;import net.sourceforge.plantuml.Guillemet;import net.sourceforge.plantuml.ISkinParam;import net.sourceforge.plantuml.LineParam;import net.sourceforge.plantuml.SkinParamUtils;import net.sourceforge.plantuml.Url;import net.sourceforge.plantuml.UseStyle;import net.sourceforge.plantuml.awt.geom.Dimension2D;import net.sourceforge.plantuml.creole.Stencil;import net.sourceforge.plantuml.cucadiagram.BodyFactory;import net.sourceforge.plantuml.cucadiagram.Display;import net.sourceforge.plantuml.cucadiagram.EntityPortion;import net.sourceforge.plantuml.cucadiagram.ILeaf;import net.sourceforge.plantuml.cucadiagram.LeafType;import net.sourceforge.plantuml.cucadiagram.PortionShower;import net.sourceforge.plantuml.cucadiagram.Stereotype;import net.sourceforge.plantuml.graphic.FontConfiguration;import net.sourceforge.plantuml.graphic.HorizontalAlignment;import net.sourceforge.plantuml.graphic.SkinParameter;import net.sourceforge.plantuml.graphic.StringBounder;import net.sourceforge.plantuml.graphic.TextBlock;import net.sourceforge.plantuml.graphic.TextBlockUtils;import net.sourceforge.plantuml.graphic.color.ColorType;import net.sourceforge.plantuml.graphic.color.Colors;import net.sourceforge.plantuml.style.PName;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.AbstractEntityImage;import net.sourceforge.plantuml.svek.ShapeType;import net.sourceforge.plantuml.ugraphic.AbstractUGraphicHorizontalLine;import net.sourceforge.plantuml.ugraphic.TextBlockInEllipse;import net.sourceforge.plantuml.ugraphic.UEllipse;import net.sourceforge.plantuml.ugraphic.UGraphic;import net.sourceforge.plantuml.ugraphic.UGroupType;import net.sourceforge.plantuml.ugraphic.UHorizontalLine;import net.sourceforge.plantuml.ugraphic.ULine;import net.sourceforge.plantuml.ugraphic.UStroke;import net.sourceforge.plantuml.ugraphic.UTranslate;import net.sourceforge.plantuml.ugraphic.color.HColor;public class EntityImageUseCase extends AbstractEntityImage {	final private TextBlock desc;	final private Url url;	public EntityImageUseCase(ILeaf entity, ISkinParam skinParam2, PortionShower portionShower) {		super(entity, entity.getColors().mute(skinParam2));		final Stereotype stereotype = entity.getStereotype();		final HorizontalAlignment align;		if (UseStyle.useBetaStyle()) {			final Style style = getStyle();			align = style.getHorizontalAlignment();		} else {			align = HorizontalAlignment.CENTER;		}		final TextBlock tmp = BodyFactory.create2(getSkinParam().getDefaultTextAlignment(align), entity.getDisplay(),				FontParam.USECASE, getSkinParam(), stereotype, entity, getStyle());		if (stereotype == null || stereotype.getLabel(Guillemet.DOUBLE_COMPARATOR) == null				|| portionShower.showPortion(EntityPortion.STEREOTYPE, entity) == false) {			this.desc = tmp;		} else {			final TextBlock stereo;			if (stereotype.getSprite(getSkinParam()) != null) {				stereo = stereotype.getSprite(getSkinParam());			} else {				stereo = Display.getWithNewlines(stereotype.getLabel(getSkinParam().guillemet())).create(						FontConfiguration.create(getSkinParam(), FontParam.USECASE_STEREOTYPE, stereotype),						HorizontalAlignment.CENTER, getSkinParam());			}			this.desc = TextBlockUtils.mergeTB(stereo, tmp, HorizontalAlignment.CENTER);		}		this.url = entity.getUrl99();	}	private UStroke getStroke() {		if (UseStyle.useBetaStyle()) {			final Style style = getStyle();			return style.getStroke();		}		UStroke stroke = getSkinParam().getThickness(LineParam.usecaseBorder, getStereo());		if (stroke == null)			stroke = new UStroke(1.5);		final Colors colors = getEntity().getColors();		stroke = colors.muteStroke(stroke);		return stroke;	}	public Dimension2D calculateDimension(StringBounder stringBounder) {		return new TextBlockInEllipse(desc, stringBounder).calculateDimension(stringBounder);	}	final public void drawU(UGraphic ug) {		final StringBounder stringBounder = ug.getStringBounder();		double shadow = 0;		if (UseStyle.useBetaStyle()) {			final Style style = getStyle();			shadow = style.value(PName.Shadowing).asDouble();		} else if (getSkinParam().shadowing2(getEntity().getStereotype(), SkinParameter.USECASE))			shadow = 3;		final TextBlockInEllipse ellipse = new TextBlockInEllipse(desc, stringBounder);		ellipse.setDeltaShadow(shadow);		if (url != null)			ug.startUrl(url);		ug = ug.apply(getStroke());		final HColor linecolor = getLineColor();		ug = ug.apply(linecolor);		final HColor backcolor = getBackColor();		ug = ug.apply(backcolor.bg());		final UGraphic ug2 = new MyUGraphicEllipse(ug, 0, 0, ellipse.getUEllipse());		final Map<UGroupType, String> typeIDent = new EnumMap<>(UGroupType.class);		typeIDent.put(UGroupType.CLASS, "elem " + getEntity().getCode() + " selected");		typeIDent.put(UGroupType.ID, "elem_" + getEntity().getCode());		ug.startGroup(typeIDent);		ellipse.drawU(ug2);		ug2.closeGroup();		if (getEntity().getLeafType() == LeafType.USECASE_BUSINESS)			specialBusiness(ug, ellipse.getUEllipse());		if (url != null)			ug.closeUrl();	}	private void specialBusiness(UGraphic ug, UEllipse frontier) {		final RotatedEllipse rotatedEllipse = new RotatedEllipse(frontier, Math.PI / 4);		final double theta1 = 20.0 * Math.PI / 180;		final double theta2 = rotatedEllipse.getOtherTheta(theta1);		final UEllipse frontier2 = frontier.scale(0.99);		final Point2D p1 = frontier2.getPointAtAngle(-theta1);		final Point2D p2 = frontier2.getPointAtAngle(-theta2);		drawLine(ug, p1, p2);	}	private void specialBusiness0(UGraphic ug, UEllipse frontier) {		final double c = frontier.getWidth() / frontier.getHeight();		final double ouverture = Math.PI / 2;		final Point2D p1 = frontier.getPointAtAngle(getTrueAngle(c, Math.PI / 4 - ouverture));		final Point2D p2 = frontier.getPointAtAngle(getTrueAngle(c, Math.PI / 4 + ouverture));		drawLine(ug, p1, p2);	}	private void drawLine(UGraphic ug, final Point2D p1, final Point2D p2) {		ug = ug.apply(new UTranslate(p1));		ug.draw(new ULine(p2.getX() - p1.getX(), p2.getY() - p1.getY()));	}	private double getTrueAngle(final double c, final double gamma) {		return Math.atan2(Math.sin(gamma), Math.cos(gamma) / c);	}	private HColor getBackColor() {		HColor backcolor = getEntity().getColors().getColor(ColorType.BACK);		if (backcolor == null) {			if (UseStyle.useBetaStyle()) {				Style style = getStyle();				final Colors colors = getEntity().getColors();				style = style.eventuallyOverride(colors);				backcolor = style.value(PName.BackGroundColor).asColor(getSkinParam().getThemeStyle(),						getSkinParam().getIHtmlColorSet());			} else {				backcolor = SkinParamUtils.getColor(getSkinParam(), getStereo(), ColorParam.usecaseBackground);			}		}		return backcolor;	}	private Style getStyle() {		return getDefaultStyleDefinition().getMergedStyle(getSkinParam().getCurrentStyleBuilder());	}	private StyleSignature getDefaultStyleDefinition() {		return StyleSignatureBasic.of(SName.root, SName.element, SName.componentDiagram, SName.usecase).withTOBECHANGED(getStereo());	}	private HColor getLineColor() {		HColor linecolor = getEntity().getColors().getColor(ColorType.LINE);		if (linecolor == null) {			if (UseStyle.useBetaStyle()) {				final Style style = getStyle();				linecolor = style.value(PName.LineColor).asColor(getSkinParam().getThemeStyle(),						getSkinParam().getIHtmlColorSet());			} else {				linecolor = SkinParamUtils.getColor(getSkinParam(), getStereo(), ColorParam.usecaseBorder);			}		}		return linecolor;	}	public ShapeType getShapeType() {		return ShapeType.OVAL;	}	static class MyUGraphicEllipse extends AbstractUGraphicHorizontalLine {		private final double startingX;		private final double yTheoricalPosition;		private final UEllipse ellipse;		@Override		protected AbstractUGraphicHorizontalLine copy(UGraphic ug) {			return new MyUGraphicEllipse(ug, startingX, yTheoricalPosition, ellipse);		}		MyUGraphicEllipse(UGraphic ug, double startingX, double yTheoricalPosition, UEllipse ellipse) {			super(ug);			this.startingX = startingX;			this.ellipse = ellipse;			this.yTheoricalPosition = yTheoricalPosition;		}		private double getNormalized(double y) {			if (y < yTheoricalPosition)				throw new IllegalArgumentException();			y = y - yTheoricalPosition;			if (y > ellipse.getHeight())				throw new IllegalArgumentException();			return y;		}		private double getStartingXInternal(double y) {			return startingX + ellipse.getStartingX(getNormalized(y));		}		private double getEndingXInternal(double y) {			return startingX + ellipse.getEndingX(getNormalized(y));		}		private Stencil getStencil2(UTranslate translate) {			final double dy = translate.getDy();			return new Stencil() {				public double getStartingX(StringBounder stringBounder, double y) {					return getStartingXInternal(y + dy);				}				public double getEndingX(StringBounder stringBounder, double y) {					return getEndingXInternal(y + dy);				}			};		}		@Override		protected void drawHline(UGraphic ug, UHorizontalLine line, UTranslate translate) {			final UStroke stroke = new UStroke(1.5);			line.drawLineInternal(ug.apply(translate), getStencil2(translate), 0, stroke);		}	}}