Introduce CHEN_CIRCLE entity type

src/net/sourceforge/plantuml/abel/LeafType.java

@@ -62,7 +62,7 @@ public enum LeafType {
 
 	PORTIN, PORTOUT,
 
-	CHEN_ENTITY, CHEN_RELATIONSHIP, CHEN_ATTRIBUTE,
+	CHEN_ENTITY, CHEN_RELATIONSHIP, CHEN_ATTRIBUTE, CHEN_CIRCLE,
 
 	STILL_UNKNOWN;
 

src/net/sourceforge/plantuml/cheneer/command/CommandMultiSubclass.java

@@ -92,8 +92,7 @@ public class CommandMultiSubclass extends SingleLineCommand2<ChenEerDiagram> {
     final String symbol = arg.get("SYMBOL", 0);
 
     final Quark<Entity> centerQuark = diagram.quarkInContext(false, superclass + "/" + symbol + subclasses + "/center");
-    // TODO: Custom LeafType
+    final Entity centerEntity = diagram.reallyCreateLeaf(centerQuark, Display.create(symbol), LeafType.CHEN_CIRCLE, null);
-    final Entity centerEntity = diagram.reallyCreateLeaf(centerQuark, Display.create(symbol), LeafType.USECASE, null);
 
     final Quark<Entity> superclassQuark = diagram.quarkInContext(true, superclass);
     final Entity superclassEntity = superclassQuark.getData();

src/net/sourceforge/plantuml/svek/GeneralImageBuilder.java

@@ -100,6 +100,7 @@ import net.sourceforge.plantuml.svek.image.EntityImageAssociation;
 import net.sourceforge.plantuml.svek.image.EntityImageAssociationPoint;
 import net.sourceforge.plantuml.svek.image.EntityImageBranch;
 import net.sourceforge.plantuml.svek.image.EntityImageChenAttribute;
+import net.sourceforge.plantuml.svek.image.EntityImageChenCircle;
 import net.sourceforge.plantuml.svek.image.EntityImageChenEntity;
 import net.sourceforge.plantuml.svek.image.EntityImageChenRelationship;
 import net.sourceforge.plantuml.svek.image.EntityImageCircleEnd;
@@ -266,6 +267,9 @@ public final class GeneralImageBuilder {
 		if (leaf.getLeafType() == LeafType.CHEN_ATTRIBUTE)
 			return new EntityImageChenAttribute(leaf, skinParam);
 
+		if (leaf.getLeafType() == LeafType.CHEN_CIRCLE)
+			return new EntityImageChenCircle(leaf, skinParam);
+
 		// TODO Clean
 		if (leaf.getLeafType() == LeafType.DOMAIN && leaf.getStereotype() != null
 				&& leaf.getStereotype().isMachineOrSpecification())

src/net/sourceforge/plantuml/svek/image/EntityImageChenCircle.java

@@ -0,0 +1,175 @@
+/* ========================================================================
+ * 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/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.util.Collections;
+
+import net.sourceforge.plantuml.abel.Entity;
+import net.sourceforge.plantuml.klimt.UGroupType;
+import net.sourceforge.plantuml.klimt.UShape;
+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.Colors;
+import net.sourceforge.plantuml.klimt.color.HColor;
+import net.sourceforge.plantuml.klimt.creole.CreoleMode;
+import net.sourceforge.plantuml.klimt.drawing.UGraphic;
+import net.sourceforge.plantuml.klimt.font.FontConfiguration;
+import net.sourceforge.plantuml.klimt.font.StringBounder;
+import net.sourceforge.plantuml.klimt.geom.HorizontalAlignment;
+import net.sourceforge.plantuml.klimt.geom.XDimension2D;
+import net.sourceforge.plantuml.klimt.shape.TextBlock;
+import net.sourceforge.plantuml.klimt.shape.TextBlockInEllipse;
+import net.sourceforge.plantuml.klimt.shape.UEllipse;
+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;
+import net.sourceforge.plantuml.svek.AbstractEntityImage;
+import net.sourceforge.plantuml.svek.ShapeType;
+import net.sourceforge.plantuml.url.Url;
+
+public class EntityImageChenCircle extends AbstractEntityImage {
+
+	final static private int MARGIN = 6;
+
+	final private boolean isKey;
+	final private boolean isMulti;
+	final private boolean isDerived;
+
+	final private TextBlock title;
+	final private Url url;
+
+	public EntityImageChenCircle(Entity entity, ISkinParam skinParam) {
+		super(entity, skinParam);
+
+		isKey = hasStereotype("<<key>>");
+		isMulti = hasStereotype("<<multi>>");
+		isDerived = hasStereotype("<<derived>>");
+
+		FontConfiguration titleFontConfiguration = getStyleTitle(entity, skinParam)
+				.getFontConfiguration(getSkinParam().getIHtmlColorSet(), entity.getColors());
+		if (isKey) {
+			titleFontConfiguration = titleFontConfiguration.underline();
+		}
+
+		title = entity.getDisplay().create8(titleFontConfiguration, HorizontalAlignment.CENTER, skinParam, CreoleMode.FULL,
+				getStyle().wrapWidth());
+
+		url = entity.getUrl99();
+	}
+
+	private boolean hasStereotype(String stereotype) {
+		return getEntity().getStereotype() != null && getEntity().getStereotype().toString().contains(stereotype);
+	}
+
+	private Style getStyle() {
+		return getStyle(getEntity(), getSkinParam());
+	}
+
+	private static Style getStyle(Entity group, ISkinParam skinParam) {
+		return StyleSignatureBasic.of(SName.root, SName.element, SName.chenEerDiagram, SName.circle)
+				.withTOBECHANGED(group.getStereotype()).getMergedStyle(skinParam.getCurrentStyleBuilder());
+	}
+
+	private static Style getStyleTitle(Entity group, ISkinParam skinParam) {
+		return StyleSignatureBasic.of(SName.root, SName.element, SName.chenEerDiagram, SName.circle, SName.title)
+				.withTOBECHANGED(group.getStereotype()).getMergedStyle(skinParam.getCurrentStyleBuilder());
+	}
+
+	@Override
+	public ShapeType getShapeType() {
+		return ShapeType.OVAL;
+	}
+
+	@Override
+	public XDimension2D calculateDimension(StringBounder stringBounder) {
+		return new XDimension2D(25, 25);
+	}
+
+	@Override
+	public void drawU(UGraphic ug) {
+		ug.startGroup(Collections.singletonMap(UGroupType.ID, getEntity().getQuark().toStringPoint()));
+		if (url != null)
+			ug.startUrl(url);
+
+		final XDimension2D dimTotal = calculateDimension(ug.getStringBounder());
+		final XDimension2D dimTitle = title.calculateDimension(ug.getStringBounder());
+
+		UStroke stroke = getStyle().getStroke(getEntity().getColors());
+		if (isDerived) {
+			stroke = new UStroke(10, 10, stroke.getThickness());
+		}
+
+		ug = applyColor(ug);
+		ug = ug.apply(stroke);
+		ug.draw(getShape(dimTotal));
+		if (isMulti) {
+			ug.apply(new UTranslate(3, 3)).draw(getShape(dimTotal.delta(-6)));
+		}
+
+		final double xTitle = (dimTotal.getWidth() - dimTitle.getWidth()) / 2;
+		final double yTitle = (dimTotal.getHeight() - dimTitle.getHeight()) / 2;
+		title.drawU(ug.apply(new UTranslate(xTitle, yTitle)));
+
+		if (url != null)
+			ug.closeUrl();
+
+		ug.closeGroup();
+	}
+
+	final protected UGraphic applyColor(UGraphic ug) {
+		Colors colors = getEntity().getColors();
+
+		HColor border = colors.getColor(ColorType.LINE);
+		if (border == null)
+			border = getStyle().value(PName.LineColor).asColor(getSkinParam().getIHtmlColorSet());
+		ug = ug.apply(border);
+
+		HColor backcolor = colors.getColor(ColorType.BACK);
+		if (backcolor == null)
+			backcolor = getStyle().value(PName.BackGroundColor).asColor(getSkinParam().getIHtmlColorSet());
+		ug = ug.apply(backcolor.bg());
+
+		return ug;
+	}
+
+	private UShape getShape(XDimension2D dimTotal) {
+		return UEllipse.build(dimTotal.getWidth(), dimTotal.getHeight());
+	}
+
+}