release

* resize tooltip

* Fix blank board area rendering

* Fixes

* translations

* Add length

* Update update.xml

diylc/.gitignore

@@ -147,3 +147,10 @@ buildNumber.properties
 
 # Avoid ignoring Maven wrapper jar file (.jar files are usually ignored)
 !/.mvn/wrapper/maven-wrapper.jar
+
+######################
+######  Custom  ######
+######################
+
+# Deployment folder
+deploy/

diylc/HEADER.txt

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/build-all-profiles.sh

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+# Script to build all Maven profiles and copy zip files to deployment folder
+# Usage: ./build-all-profiles.sh [to-deploy-folder]
+
+set -e  # Exit on error
+
+# Parse arguments
+DEPLOY_DIR="${1:-}"
+
+# Configuration
+PROJECT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SWING_MODULE_DIR="${PROJECT_DIR}/diylc-swing"
+DEPLOY_DIR="${DEPLOY_DIR:-${PROJECT_DIR}/deploy}"
+
+# List of profiles to build
+PROFILES=(
+    "universal-zip"
+    "linux-appimage"
+    "win64-zip"
+    "win64-installer"
+    "mac-x86"
+    "mac-arm"
+)
+
+echo "=========================================="
+echo "Building all Maven profiles"
+echo "=========================================="
+echo "Project directory: ${PROJECT_DIR}"
+echo "Swing module directory: ${SWING_MODULE_DIR}"
+echo "Deployment directory: ${DEPLOY_DIR}"
+echo "Tests: Skipped"
+echo ""
+
+# Create deployment directory if it doesn't exist
+mkdir -p "${DEPLOY_DIR}"
+
+# Change to project root directory
+cd "${PROJECT_DIR}"
+
+# Build each profile (clean before each one)
+TARGET_DIR="${SWING_MODULE_DIR}/target"
+TOTAL_ZIP_COUNT=0
+
+for profile in "${PROFILES[@]}"; do
+    echo "----------------------------------------"
+    echo "Building profile: ${profile}"
+    echo "----------------------------------------"
+    
+    # Clean and build from root, specifying the swing module and profile
+    # This ensures dependencies (diylc-core, diylc-library) are built first
+    mvn clean package -pl diylc-swing -am -P"${profile}" -DskipTests || {
+        echo "ERROR: Failed to build profile ${profile}"
+        echo "Continuing with next profile..."
+        continue
+    }
+    
+    echo "✓ Profile ${profile} built successfully"
+    
+    # Copy zip and exe files immediately after each build (before next clean)
+    if [ -d "${TARGET_DIR}" ]; then
+        echo "Looking for artifacts in ${TARGET_DIR}..."
+        PROFILE_FILE_COUNT=0
+        
+        # Find all zip files in target directory (excluding DIYLC-notarize.zip)
+        while IFS= read -r -d '' zipfile; do
+            filename=$(basename "${zipfile}")
+            # Skip DIYLC-notarize.zip files
+            if [[ "${filename}" != "DIYLC-notarize.zip" ]] && [ -f "${zipfile}" ]; then
+                dest="${DEPLOY_DIR}/${filename}"
+                
+                echo "  → Copying: ${filename}"
+                cp "${zipfile}" "${dest}"
+                TOTAL_ZIP_COUNT=$((TOTAL_ZIP_COUNT + 1))
+                PROFILE_FILE_COUNT=$((PROFILE_FILE_COUNT + 1))
+            fi
+        done < <(find "${TARGET_DIR}" -maxdepth 1 -type f -name "*.zip" -print0 2>/dev/null)
+        
+        # Find all exe files in target directory
+        while IFS= read -r -d '' exefile; do
+            if [ -f "${exefile}" ]; then
+                filename=$(basename "${exefile}")
+                dest="${DEPLOY_DIR}/${filename}"
+                
+                echo "  → Copying: ${filename}"
+                cp "${exefile}" "${dest}"
+                TOTAL_ZIP_COUNT=$((TOTAL_ZIP_COUNT + 1))
+                PROFILE_FILE_COUNT=$((PROFILE_FILE_COUNT + 1))
+            fi
+        done < <(find "${TARGET_DIR}" -maxdepth 1 -type f -name "*.exe" -print0 2>/dev/null)
+        
+        if [ ${PROFILE_FILE_COUNT} -eq 0 ]; then
+            echo "  ⚠ Warning: No artifacts found for profile ${profile}"
+            # List what's actually in the target directory for debugging
+            echo "  Debug: Files in target directory:"
+            ls -la "${TARGET_DIR}"/*.{zip,exe} 2>/dev/null | head -5 || echo "    (no zip/exe files found)"
+        else
+            echo "  ✓ Copied ${PROFILE_FILE_COUNT} file(s) from ${profile}"
+        fi
+    else
+        echo "  ⚠ Warning: Target directory ${TARGET_DIR} does not exist"
+    fi
+    
+    echo ""
+done
+
+echo "=========================================="
+echo "Copying summary"
+echo "=========================================="
+if [ ${TOTAL_ZIP_COUNT} -eq 0 ]; then
+    echo "No artifacts were copied"
+else
+    echo "✓ Copied ${TOTAL_ZIP_COUNT} file(s) total to ${DEPLOY_DIR}"
+fi
+
+echo ""
+echo "=========================================="
+echo "Build and deployment complete!"
+echo "=========================================="
+echo "Deployment folder: ${DEPLOY_DIR}"
+echo "Files:"
+ls -lh "${DEPLOY_DIR}"/*.{zip,exe} 2>/dev/null || echo "  (no zip/exe files found)"
+

diylc/diylc-core/pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.diylc</groupId>
         <artifactId>diylc-parent</artifactId>
-        <version>5.4.0</version>
+        <version>5.9.0</version>
     </parent>
     
     <artifactId>diylc-core</artifactId>

diylc/diylc-core/src/main/java/org/diylc/announcements/Announcement.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/announcements/AnnouncementProvider.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/announcements/IAnnouncementService.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/clipboard/ComponentTransferable.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -29,6 +29,7 @@ import java.io.Serializable;
 import java.util.List;
 import java.util.Set;
 
+import org.diylc.core.ComponentGroup;
 import org.diylc.core.IDIYComponent;
 
 /**
@@ -44,19 +45,21 @@ public class ComponentTransferable implements Transferable, Serializable {
   public static final DataFlavor listFlavor = new DataFlavor(ComponentTransferable.class, "application/diylc");
   
   private List<IDIYComponent<?>> components;
-  private Set<Set<IDIYComponent<?>>> groups;
+  private Set<ComponentGroup> groups;
+  private String name;
 
   public ComponentTransferable() {
     super();
   }
   
-  public ComponentTransferable(List<IDIYComponent<?>> components) {
+  public ComponentTransferable(List<IDIYComponent<?>> components, String name) {
     super();
     this.components = components;
+    this.name = name;
     this.groups = null;
   }
 
-  public ComponentTransferable(List<IDIYComponent<?>> components, Set<Set<IDIYComponent<?>>> groups) {
+  public ComponentTransferable(List<IDIYComponent<?>> components, Set<ComponentGroup> groups) {
     super();
     this.components = components;
     this.groups = groups;
@@ -84,7 +87,11 @@ public class ComponentTransferable implements Transferable, Serializable {
     return components;
   }
   
-  public Set<Set<IDIYComponent<?>>> getGroups() {
+  public Set<ComponentGroup> getGroups() {
     return groups;
   }
+
+  public String getName() {
+    return name;
+  }
 }

diylc/diylc-core/src/main/java/org/diylc/clipboard/ComponentTransferableFactory.java

@@ -1,6 +1,6 @@
 /*
  * 
- * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
  * 
  * This file is part of DIYLC.
  * 
@@ -17,15 +17,11 @@
  */
 package org.diylc.clipboard;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Objects;
-import java.util.Set;
+import java.util.*;
 import java.util.stream.Collectors;
 import org.apache.log4j.Logger;
 
+import org.diylc.core.ComponentGroup;
 import org.diylc.core.IDIYComponent;
 
 public class ComponentTransferableFactory {
@@ -40,13 +36,19 @@ public class ComponentTransferableFactory {
     return instance;
   }
   
-  public ComponentTransferable build(Collection<IDIYComponent<?>> selectedComponents, Set<Set<IDIYComponent<?>>> groups) {
-    Set<IDIYComponent<?>> originalComponentSet = new HashSet<IDIYComponent<?>>(selectedComponents);
+  public ComponentTransferable build(Collection<IDIYComponent<?>> selectedComponents, Set<ComponentGroup> groups) {
+
     List<IDIYComponent<?>> originalComponents = new ArrayList<IDIYComponent<?>>(selectedComponents);
+
+    Map<UUID, UUID> idMap = new HashMap<>();
+
     List<IDIYComponent<?>> clonedComponents = originalComponents.stream(
         ).map(x -> {
           try {
-            return x.clone();
+            IDIYComponent<?> clone = x.clone();
+            clone.setId(UUID.randomUUID());
+            idMap.put(x.getId(), clone.getId());
+            return clone;
           } catch (CloneNotSupportedException e) {
             LOG.error(e);
             return null;
@@ -54,22 +56,11 @@ public class ComponentTransferableFactory {
         })
         .filter(Objects::nonNull)
         .collect(Collectors.toList());
-    Set<Set<IDIYComponent<?>>> clonedGroups = new HashSet<Set<IDIYComponent<?>>>();
-    
-    for (Set<IDIYComponent<?>> group : groups) {
-      if (group.isEmpty())
-        continue;
-      
-      if (originalComponentSet.contains(group.iterator().next())) {
-        Set<IDIYComponent<?>> clonedGroup = new HashSet<IDIYComponent<?>>();
-        clonedGroups.add(clonedGroup);
-        for (int i = 0; i < originalComponents.size(); i++) {
-          if (group.contains(originalComponents.get(i))) {
-            clonedGroup.add(clonedComponents.get(i));
-          }
-        }
-      }
-    }
+
+    Set<ComponentGroup> clonedGroups = groups.stream().map(group ->
+        new ComponentGroup(group.getComponentIds().stream()
+            .map(idMap::get).collect(Collectors.toSet()), group.getName()))
+        .collect(Collectors.toSet());
     
     return new ComponentTransferable(clonedComponents, clonedGroups);
   }

diylc/diylc-core/src/main/java/org/diylc/common/BadPositionException.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/BuildingBlock.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/BuildingBlockPackage.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/ComponentType.java

@@ -1,6 +1,6 @@
 /*
  * 
- * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
  * 
  * This file is part of DIYLC.
  * 

diylc/diylc-core/src/main/java/org/diylc/common/Display.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/DrawOption.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -68,5 +68,9 @@ public enum DrawOption {
   /**
    * Whether locked components should be rendered as transparent or not.
    */
-  LOCKED_ALPHA;
+  LOCKED_ALPHA,
+  /**
+   * When applied, all colors will be converted to blackest black or whitest white
+   */
+  MONOCHROMATIC;
 }

diylc/diylc-core/src/main/java/org/diylc/common/DummyView.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -19,13 +19,12 @@
     along with DIYLC.  If not, see <http://www.gnu.org/licenses/>.
 
 */
-package org.diylc.swing.gui;
+package org.diylc.common;
 
 import java.io.File;
 import java.util.List;
 import java.util.Set;
 
-import org.diylc.common.PropertyWrapper;
 import org.diylc.core.IView;
 
 public class DummyView implements IView {

diylc/diylc-core/src/main/java/org/diylc/common/EventType.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -21,7 +21,6 @@
 */
 package org.diylc.common;
 
-import java.awt.Rectangle;
 import java.awt.geom.Point2D;
 
 import org.diylc.core.Project;
@@ -55,12 +54,7 @@ public enum EventType {
    */
   FILE_STATUS_CHANGED,
   /**
-   * Called when selection rectangle is changed. Object of type {@link Rectangle} is the only
-   * parameter and it contains the new selection rectangle.
-   */
-  SELECTION_RECT_CHANGED,
-  /**
-   * Called when component selection is changed. New {@link ComponentSelection} is attached as a
+   * Called when component selection is changed. New list of components and control point map is attached as a
    * parameter.
    */
   SELECTION_CHANGED,

diylc/diylc-core/src/main/java/org/diylc/common/Favorite.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/GridType.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/HorizontalAlignment.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IBlockProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IComponentTransformer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IGroupProcessor.java

@@ -0,0 +1,52 @@
+/*
+    DIY Layout Creator (DIYLC).
+    Copyright (c) 2009-2025 held jointly by the individual authors.
+
+    This file is part of DIYLC.
+
+    DIYLC 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.
+
+    DIYLC is 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 DIYLC.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+package org.diylc.common;
+
+import java.util.Set;
+
+import org.diylc.core.ComponentGroup;
+
+/**
+ * Interface for component grouping operations.
+ * 
+ * @author Branislav Stojkovic
+ */
+public interface IGroupProcessor {
+
+  /**
+   * Returns the set of component groups in the current project. Each group is a set of components
+   * that are grouped together.
+   *
+   * @return set of component groups
+   */
+  Set<ComponentGroup> getComponentGroups();
+
+  /**
+   * Groups all selected components.
+   */
+  void groupSelectedComponents();
+
+  /**
+   * Ungroups all selected components.
+   */
+  void ungroupSelectedComponents();
+}
+

diylc/diylc-core/src/main/java/org/diylc/common/IKeyProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IMouseProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/INetlistAnalyzer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/INetlistProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IPlugIn.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IPlugInPort.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -41,16 +41,18 @@ import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
 import org.diylc.core.Template;
 import org.diylc.core.Theme;
+import org.diylc.core.measures.ResizeDimensions;
 import org.diylc.core.measures.Size;
+import org.diylc.filter.IComponentFilter;
 import org.diylc.test.ITestProcessor;
 
 /**
  * Interface for communication between plug-ins and the application. Plug-ins may acquire
  * information or make changes through this interface. Application events are dispatched to plug-ins
  * through {@link MessageDispatcher}
- * 
+ *
  * @author Branislav Stojkovic
- * 
+ *
  * @see IPlugIn
  * @see MessageDispatcher
  * @see IMessageListener
@@ -84,18 +86,20 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
   public static final String RENUMBER_ON_PASTE_KEY = "renumberOnPaste";
   public static final String RULER_IN_SUBDIVISION_KEY = "rulerInSubdivision";
   public static final String CACHING_ENABLED_KEY = "cachingEnabled";
-  
+  public static final String FONT_SCALE_FACTOR_KEY = "fontScaleFactor";
+  public static final String SHOW_RESIZE_DIMENSIONS_TOOLTIP_KEY = "showResizeDimensionsTooltip";
+
   public static final String RULER_IN_SUBDIVISION_2 = "base of 2";
   public static final String RULER_IN_SUBDIVISION_10 = "base of 10";
   public static final String RULER_IN_SUBDIVISION_DEFAULT = RULER_IN_SUBDIVISION_10;
-  
+
   public static final String SNAP_TO_NONE = "None";
   public static final String SNAP_TO_GRID = "Grid";
   public static final String SNAP_TO_COMPONENTS = "Components";
   public static final String SNAP_TO_DEFAULT = SNAP_TO_GRID;
-  
+
   public static final String LOCKED_ALPHA = "lockedAlpha";
-  
+
   public static final String LANGUAGE = "language";
   public static final String LANGUAGE_DEFAULT = "English";
 
@@ -108,25 +112,25 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
   public static final int NOBUTTON = 0;
   public static final int BUTTON1 = 1;
   public static final int BUTTON2 = 2;
-  public static final int BUTTON3 = 3;  
+  public static final int BUTTON3 = 3;
 
   /**
    * Returns size of the canvas that takes project dimensions into account as well as zoom level.
    * Each dimension is calculated as the product of the actual size and the number of pixels per
    * unit. If <code>useZoom</code> is set to true, the result is scaled by zoom factor.
-   * 
+   *
    * @param useZoom
    * @param includeExtraSpace
-   * 
+   *
    * @return canvas dimensions
    */
   Dimension getCanvasDimensions(boolean useZoom, boolean includeExtraSpace);
 
   /**
    * Returns an instance of {@link Cursor} that should be used at the specified location.
-   * 
+   *
    * Note: point coordinates are scaled for zoom factor.
-   * 
+   *
    * @param point
    * @param ctrlDown
    * @param shiftDown
@@ -137,14 +141,14 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Returns an instance of currently loaded project.
-   * 
+   *
    * @return
    */
   Project getCurrentProject();
 
   /**
    * Loads specified {@link Project}.
-   * 
+   *
    * @param project
    * @param freshStart
    * @param filename file name when loading from a file
@@ -158,22 +162,22 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Loads a project from the specified file.
-   * 
+   *
    * @param fileName
    */
   void loadProjectFromFile(String fileName);
 
   /**
    * Saves the current project into the specified file.
-   * 
+   *
    * @param fileName
    * @param isBackup
    */
   void saveProjectToFile(String fileName, boolean isBackup);
-  
+
   /**
    * Exports the current project into one or more files - one per layer and potentially drill layer.
-   * 
+   *
    * @param fileNameBase
    * @param g2d
    */
@@ -191,7 +195,7 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Shows a user dialog if there are changes to confirm that it's safe to proceed.
-   * 
+   *
    * @return true, if file actions (new, open, close) can be taken
    */
   boolean allowFileAction();
@@ -200,7 +204,7 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
    * Returns all available {@link ComponentType}s classified by category. Result is a {@link Map}
    * between category name to a {@link List} of all {@link ComponentType}s that share that category
    * name.
-   * 
+   *
    * @return
    */
   Map<String, List<ComponentType>> getComponentTypes();
@@ -208,7 +212,7 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
   /**
    * Draws project on the provided {@link Graphics2D}. If the provided filter is not null, it will
    * be used to filter the components that are shown.
-   * 
+   *
    * @param g2d
    * @param drawOptions specific drawing options
    * @param filter
@@ -222,35 +226,35 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Returns current zoom level where <code>zoomLevel = 1.0d</code> means 100%.
-   * 
+   *
    * @return current zoom level
    */
   double getZoomLevel();
 
   /**
    * Changes current zoom level where <code>zoomLevel = 1.0d</code> means 100%
-   * 
+   *
    * @param zoomLevel new zoom leve
    */
   void setZoomLevel(double zoomLevel);
 
   /**
    * Returns current version number.
-   * 
+   *
    * @return
    */
   VersionNumber getCurrentVersionNumber();
-  
+
   /**
-   * Returns few most recent versions. 
-   * 
+   * Returns few most recent versions.
+   *
    * @return
    */
   List<Version> getRecentUpdates();
 
   /**
    * Adds a list of components to the project.
-   * 
+   *
    * @param componentTransferable
    * @param autoGroup
    * @param assignNewNames
@@ -269,7 +273,7 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Sets default value for the specified property name for currently selected component types.
-   * 
+   *
    * @param propertyName display name for property
    * @param value new default value, must not be null
    */
@@ -277,7 +281,7 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
 
   /**
    * Sets default value for the specified property name for projects.
-   * 
+   *
    * @param clazz class to set defaults to
    * @param propertyName display name for property
    * @param value new default value, must not be null
@@ -291,6 +295,15 @@ public interface IPlugInPort extends ISelectionProcessor, IMouseProcessor, IKeyP
    */
   List<PropertyWrapper> getMutualSelectionProperties();
 
+  /**
+   * Available only during resizing, returns the dimensions of the component being resized.
+   * Otherwise returns null.
+   *
+   * @return ResizeDimensions with width, height (in mm or in depending on configuration), 
+   *         and length (if component implements IHaveLength), or null if not resizing
+   */
+  ResizeDimensions getResizeDimensions();
+
   void editSelection();
 
   /**

diylc/diylc-core/src/main/java/org/diylc/common/IProjectEditor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/ISelectionProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -31,7 +31,7 @@ import org.diylc.core.ExpansionMode;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.measures.Size;
 
-public interface ISelectionProcessor {
+public interface ISelectionProcessor extends IGroupProcessor {
 
   /**
    * Returns the current {@link ComponentTransferable}.
@@ -89,16 +89,6 @@ public interface ISelectionProcessor {
    */
   void rotateSelection(int direction);
 
-  /**
-   * Groups all selected components.
-   */
-  void groupSelectedComponents();
-
-  /**
-   * Ungroups all selected components.
-   */
-  void ungroupSelectedComponents();
-
   /**
    * Mirrors selected components in the given axis.
    * 

diylc/diylc-core/src/main/java/org/diylc/common/IServiceManager.java

@@ -3,6 +3,7 @@ package org.diylc.common;
 import org.diylc.appframework.simplemq.MessageDispatcher;
 import org.diylc.plugins.chatbot.service.ChatbotService;
 import org.diylc.plugins.cloud.service.CloudService;
+import org.diylc.plugins.compare.service.CompareService;
 import org.diylc.presenter.DrawingManager;
 
 public interface IServiceManager {
@@ -11,6 +12,8 @@ public interface IServiceManager {
 
   ChatbotService getChatbotService();
 
+  CompareService getCompareService();
+
   MessageDispatcher<EventType> getMessageDispatcher();
 
   DrawingManager getDrawingManager();

diylc/diylc-core/src/main/java/org/diylc/common/ITask.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/IVariantProcessor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/LabelPosition.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/LineStyle.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/ObjectCache.java

@@ -1,6 +1,6 @@
 /*
  * 
- * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
  * 
  * This file is part of DIYLC.
  * 

diylc/diylc-core/src/main/java/org/diylc/common/Orientation.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/Orientation45.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/OrientationHV.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/PCBLayer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/PropertyWrapper.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/ResistorColorCode.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/VariantPackage.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/VerticalAlignment.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/common/ZoomableStroke.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/AbstractAngledComponent.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/AbstractComponent.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -30,6 +30,7 @@ import java.lang.reflect.Array;
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
 import java.util.Arrays;
+import java.util.UUID;
 import java.util.stream.Collectors;
 
 import org.diylc.core.IDIYComponent;
@@ -52,6 +53,7 @@ public abstract class AbstractComponent<T> implements IDIYComponent<T> {
 
   private static final long serialVersionUID = 1L;
 
+  protected UUID id = UUID.randomUUID();
   protected String name = "";
 
   public static Color SELECTION_COLOR = Color.red;
@@ -78,6 +80,19 @@ public abstract class AbstractComponent<T> implements IDIYComponent<T> {
     this.name = name;
   }
 
+  @Override
+  public UUID getId() {
+    if (id == null) {
+      id = UUID.randomUUID();
+    }
+    return id;
+  }
+
+  @Override
+  public void setId(UUID id) {
+    this.id = id;
+  }
+
   @Override
   public boolean canControlPointOverlap(int index) {
     return false;
@@ -186,6 +201,10 @@ public abstract class AbstractComponent<T> implements IDIYComponent<T> {
             field.setAccessible(true);
             Object value = field.get(this);
 
+            if (field.getName().equalsIgnoreCase("id")) {
+              value = getId();
+            }
+
             // Deep copy point arrays.
             // TODO: something nicer
             if (value != null && value.getClass().isArray()

diylc/diylc-core/src/main/java/org/diylc/components/AbstractCurvedComponent.java

@@ -1,6 +1,6 @@
 /*
  * 
- * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
  * 
  * This file is part of DIYLC.
  * 
@@ -37,16 +37,14 @@ import com.thoughtworks.xstream.annotations.XStreamOmitField;
 import org.diylc.common.IPlugInPort;
 import org.diylc.common.LineStyle;
 import org.diylc.common.ObjectCache;
-import org.diylc.core.ComponentState;
-import org.diylc.core.IDrawingObserver;
-import org.diylc.core.Project;
-import org.diylc.core.VisibilityPolicy;
+import org.diylc.core.*;
 import org.diylc.core.annotations.EditableProperty;
 import org.diylc.core.measures.Size;
 import org.diylc.core.measures.SizeUnit;
 import org.diylc.utils.Constants;
 
-public abstract class AbstractCurvedComponent<T> extends AbstractTransparentComponent<T> {
+public abstract class AbstractCurvedComponent<T> extends AbstractTransparentComponent<T> implements
+    IHaveLength {
 
   private static final long serialVersionUID = 1L;
   
@@ -337,8 +335,8 @@ public abstract class AbstractCurvedComponent<T> extends AbstractTransparentComp
     // }
   }
   
-  @EditableProperty
-  public Size getLength() {
+  @EditableProperty(name = "Length")
+  public Size calculateLength() {
     double d = 0;
       try {
       Point2D[] p = getControlPoints();

diylc/diylc-core/src/main/java/org/diylc/components/AbstractLabeledComponent.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/AbstractTransparentComponent.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/transform/DefaultTransformer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/transform/LeadedComponentTransformer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/components/transform/SimpleComponentTransformer.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/AllowAllValidator.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ComponentForRender.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ComponentGroup.java

@@ -0,0 +1,40 @@
+package org.diylc.core;
+
+import java.io.Serializable;
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+public class ComponentGroup implements Serializable {
+
+  private Set<UUID> componentIds;
+  private String name;
+
+  public ComponentGroup(Set<UUID> componentIds) {
+    this.componentIds = componentIds;
+  }
+
+  public ComponentGroup(Set<UUID> componentIds, String name) {
+    this.componentIds = componentIds;
+    this.name = name;
+  }
+
+  public static ComponentGroup from(Collection<IDIYComponent<?>> components, String name) {
+    return new ComponentGroup(components.stream()
+        .map(IDIYComponent::getId).collect(Collectors.toSet()), name);
+  }
+
+  public Set<UUID> getComponentIds() {
+    return componentIds;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+}

diylc/diylc-core/src/main/java/org/diylc/core/ComponentState.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/CreationMethod.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ExpansionMode.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ICommonNode.java

@@ -1,6 +1,6 @@
 /*
  * 
- * DIY Layout Creator (DIYLC). Copyright (c) 2009-2018 held jointly by the individual authors.
+ * DIY Layout Creator (DIYLC). Copyright (c) 2009-2025 held jointly by the individual authors.
  * 
  * This file is part of DIYLC.
  * 

diylc/diylc-core/src/main/java/org/diylc/core/IContinuity.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/IDIYComponent.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -25,6 +25,7 @@ import java.awt.Graphics2D;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 import java.io.Serializable;
+import java.util.UUID;
 
 import org.diylc.core.annotations.ComponentDescriptor;
 import org.diylc.core.annotations.EditableProperty;
@@ -55,6 +56,10 @@ public interface IDIYComponent<T> extends Serializable, Cloneable {
   public static final int WIRING = 5;
   public static final int TEXT = 6;
 
+  UUID getId();
+
+  void setId(UUID id);
+
   /**
    * @return component instance name.
    */
@@ -199,4 +204,13 @@ public interface IDIYComponent<T> extends Serializable, Cloneable {
    * @param project
    */
   void createdIn(Project project);
+
+  /**
+   * Returns whether this component is polarized (direction matters for electronic function).
+   * Default implementation returns true, components that are not polarized should override this.
+   * @return true if the component is polarized, false otherwise
+   */
+  default boolean isPolarized() {
+    return true;
+  }
 }

diylc/diylc-core/src/main/java/org/diylc/core/IDatasheetSupport.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/IDrawingObserver.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/IDynamicPropertySource.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/IHaveLength.java

@@ -0,0 +1,29 @@
+/*
+
+    DIY Layout Creator (DIYLC).
+    Copyright (c) 2009-2025 held jointly by the individual authors.
+
+    This file is part of DIYLC.
+
+    DIYLC 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.
+
+    DIYLC is 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 DIYLC.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+package org.diylc.core;
+
+import org.diylc.core.measures.Size;
+
+public interface IHaveLength {
+
+  Size calculateLength();
+}

diylc/diylc-core/src/main/java/org/diylc/core/IPropertyValidator.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ISwitch.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/IView.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/Project.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 
@@ -23,13 +23,9 @@ package org.diylc.core;
 
 import java.awt.Font;
 import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.util.*;
+import java.util.stream.Collectors;
+
 import org.diylc.appframework.update.VersionNumber;
 
 import org.diylc.core.annotations.EditableProperty;
@@ -67,6 +63,7 @@ public class Project implements Serializable, Cloneable {
   private Integer dotSpacing;
   private List<IDIYComponent<?>> components;
   private Set<Set<IDIYComponent<?>>> groups;
+  private Set<ComponentGroup> groupsEx;
   private Set<Integer> lockedLayers;
   private Set<IDIYComponent<?>> lockedComponents;
   private Set<Integer> hiddenLayers;
@@ -75,6 +72,7 @@ public class Project implements Serializable, Cloneable {
   public Project() {
     components = new ArrayList<IDIYComponent<?>>();
     groups = new HashSet<Set<IDIYComponent<?>>>();
+    groupsEx = new HashSet<>();
     lockedLayers = new HashSet<Integer>();
     hiddenLayers = new HashSet<Integer>();
     lockedComponents = new HashSet<IDIYComponent<?>>();
@@ -153,22 +151,28 @@ public class Project implements Serializable, Cloneable {
 
   /**
    * List of components sorted by z-order ascending.
-   * 
+   * s
    * @return
    */
   public List<IDIYComponent<?>> getComponents() {
     return components;
   }
 
-  /**
-   * Set of grouped components.
-   * 
-   * @return
-   */
-  public Set<Set<IDIYComponent<?>>> getGroups() {
-    return groups;
+  public Set<ComponentGroup> getGroupsEx() {
+    if (groupsEx == null) {
+      groupsEx = new HashSet<>();
+
+      if (groups != null && !groups.isEmpty()) {
+        for (Set<IDIYComponent<?>> group : groups) {
+          ComponentGroup newGroup = ComponentGroup.from(group, null);
+          groupsEx.add(newGroup);
+        }
+        groups.clear();
+      }
+    }
+    return groupsEx;
   }
-  
+
   public Set<IDIYComponent<?>> getLockedComponents() {
     if (lockedComponents == null)
       lockedComponents = new HashSet<IDIYComponent<?>>();
@@ -292,6 +296,11 @@ public class Project implements Serializable, Cloneable {
         return false;
     } else if (!groups.equals(other.groups))
       return false;
+    if (groupsEx == null) {
+      if (other.groupsEx != null)
+        return false;
+    } else if (!groupsEx.equals(other.groupsEx))
+      return false;
     if (lockedLayers == null) {
       if (other.lockedLayers != null)
         return false;
@@ -356,12 +365,8 @@ public class Project implements Serializable, Cloneable {
       }
     }
 
-    for (Set<IDIYComponent<?>> group : this.groups) {
-      Set<IDIYComponent<?>> cloneGroup = new HashSet<IDIYComponent<?>>();
-      for (IDIYComponent<?> component : group) {
-        cloneGroup.add(cloneMap.get(component));
-      }
-      project.groups.add(cloneGroup);
+    for (ComponentGroup group : this.getGroupsEx()) {
+      project.getGroupsEx().add(new ComponentGroup(group.getComponentIds(), group.getName()));
     }
     
     for (IDIYComponent<?> component : this.getLockedComponents()) {

diylc/diylc-core/src/main/java/org/diylc/core/Template.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/Theme.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/ValidationException.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/VisibilityPolicy.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/BomPolicy.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/ByteArrayProperty.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/ComponentDescriptor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/DynamicEditableProperty.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/DynamicList.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/EditableProperty.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/ElementLabel.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/IAutoCreator.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/KeywordPolicy.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/MultiLineText.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/PercentEditor.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/PositiveMeasureValidator.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/annotations/PositiveNonZeroMeasureValidator.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/gerber/GerberG2DWrapper.java

@@ -300,7 +300,7 @@ public class GerberG2DWrapper extends Graphics2D
 
   @Override
   public AffineTransform getTransform() {
-    return tx;
+    return new AffineTransform(tx);
   }
 
   @Override

diylc/diylc-core/src/main/java/org/diylc/core/images/IconLoader.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/AbstractMeasure.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/Capacitance.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/CapacitanceUnit.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/Current.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/CurrentUnit.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/Frequency.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/FrequencyUnit.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/Inductance.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/InductanceUnit.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.
 

diylc/diylc-core/src/main/java/org/diylc/core/measures/MeasureList.java

@@ -1,7 +1,7 @@
 /*
 
     DIY Layout Creator (DIYLC).
-    Copyright (c) 2009-2018 held jointly by the individual authors.
+    Copyright (c) 2009-2025 held jointly by the individual authors.
 
     This file is part of DIYLC.