Support fonts in SceneGraphWebalizer

gitlab #1258

(cherry picked from commit 6d1b13be)

bundles/org.simantics.modeling.web/src/org/simantics/modeling/web/NodeMapper.java

@@ -13,6 +13,7 @@ package org.simantics.modeling.web;
 
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Font;
 import java.awt.Shape;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.Rectangle2D;
@@ -30,6 +31,7 @@ import org.simantics.g2d.diagram.handler.DataElementMap;
 import org.simantics.modeling.web.serializer.BasicStrokeSerializer;
 import org.simantics.modeling.web.serializer.ColorSerializer;
 import org.simantics.modeling.web.serializer.ElementTransferableSerializer;
+import org.simantics.modeling.web.serializer.FontSerializer;
 import org.simantics.modeling.web.serializer.INodeSerializer;
 import org.simantics.modeling.web.serializer.RectangleSerializer;
 import org.simantics.modeling.web.serializer.RouteGraphSerializer;
@@ -63,6 +65,7 @@ public class NodeMapper extends ObjectMapper {
 		SimpleModule module = new SimpleModule();
 		module.addSerializer(INode.class, new INodeSerializer());
 		module.addSerializer(Color.class, new ColorSerializer());
+		module.addSerializer(Font.class, new FontSerializer());
 		RouteGraphSerializer rgs = new RouteGraphSerializer();
 		rgs.setNodeMapper(this);
 		module.addSerializer(RouteGraph.class, rgs);

bundles/org.simantics.modeling.web/src/org/simantics/modeling/web/serializer/FontSerializer.java

+/*******************************************************************************
+ *  Copyright (c) 2025 Association for Decentralized Information Management
+ *  in Industry THTH ry.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.modeling.web.serializer;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.io.IOException;
+import java.util.Locale;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.node.JsonNodeFactory;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+
+/**
+ * @author Antti Villberg
+ * @since 1.57.0
+ */
+public class FontSerializer extends StdSerializer<Font> {
+
+	private static final long serialVersionUID = 7719241986258581681L;
+
+	public FontSerializer() {
+		this(null);
+	}
+
+	public FontSerializer(Class<Font> t) {
+		super(t);
+	}
+
+	@Override
+	public void serialize(Font value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
+		ObjectNode node = new ObjectNode(JsonNodeFactory.instance);
+		node.put("name", value.getFamily());
+		node.put("style", value.getStyle());
+		node.put("size", value.getSize());
+		// jgen.writeString("rect2D(" + value.getMinX() + "," + value.getMinY() + "," +
+		// value.getWidth() + "," + value.getHeight() + ")");
+		jgen.writeObject(node);
+	}
+}
\ No newline at end of file