Unable to move selected components if one of them is close to being reduced to a point

diylc/diylc-core/src/org/diylc/presenter/CalcUtils.java

@@ -62,4 +62,12 @@ public class CalcUtils {
         }
     }
   }
+  
+  public static boolean pointsMatch(Point2D point1, Point2D point2, double delta) {
+    if (Math.abs(point1.getX() - point2.getX()) > delta)
+      return false;
+    if (Math.abs(point1.getY() - point2.getY()) > delta)
+      return false;
+    return true;
+  }
 }

diylc/diylc-core/src/org/diylc/presenter/Presenter.java

@@ -1364,7 +1364,7 @@ public class Presenter implements IPlugInPort {
       IDIYComponent<?> component = entry.getKey();
       for (int i = 0; i < component.getControlPointCount() - 1 && !skip; i++)
         for (int j = i + 1; j < component.getControlPointCount() && !skip; j++)
-          if (component.getControlPoint(i).equals(component.getControlPoint(j)))
+          if (CalcUtils.pointsMatch(component.getControlPoint(i), component.getControlPoint(j), DrawingManager.CONTROL_POINT_SIZE / 2.0))
             skip = true;
       
       if (skip)
@@ -1396,7 +1396,8 @@ public class Presenter implements IPlugInPort {
 
       for (int i = 0; i < controlPoints.length - 1; i++) {
         for (int j = i + 1; j < controlPoints.length; j++) {
-          if (controlPoints[i] != null && controlPoints[j] != null && controlPoints[i].equals(controlPoints[j])) {
+          if (controlPoints[i] != null && controlPoints[j] != null && 
+              CalcUtils.pointsMatch(controlPoints[i], controlPoints[j], DrawingManager.CONTROL_POINT_SIZE / 2.0)) {
             // Control points collision detected, cannot make
             // this move.
             return null;

diylc/diylc-core/src/org/diylc/presenter/update.xml

@@ -4369,5 +4369,21 @@
 			</changes>
 			<url>https://github.com/bancika/diy-layout-creator/releases</url>
 		</org.diylc.appframework.update.Version>
+		<org.diylc.appframework.update.Version>
+			<versionNumber>
+				<major>4</major>
+				<minor>38</minor>
+				<build>0</build>
+			</versionNumber>
+			<releaseDate>2023-04-27 00:00:00.000 CET</releaseDate>
+			<name></name>
+			<changes>	
+				<org.diylc.appframework.update.Change>
+					<changeType>BUG_FIX</changeType>
+					<description>Unable to move selected components if one of them is close to being reduced to a point</description>
+				</org.diylc.appframework.update.Change>					
+			</changes>
+			<url>https://github.com/bancika/diy-layout-creator/releases</url>
+		</org.diylc.appframework.update.Version>
 	</a>
 </java.util.Arrays_-ArrayList>