Implement copy action

src/main/java/ovh/gasser/newshapes/shapes/AbstractShape.java

@@ -48,4 +48,7 @@ public abstract class AbstractShape implements Shape {
     public String toString() {
         return String.format("x=%d, y=%d, width=%d, height=%d", bounds.x, bounds.y, bounds.width, bounds.height);
     }
+
+    @Override
+    public abstract Shape clone();
 }

src/main/java/ovh/gasser/newshapes/shapes/SCircle.java

@@ -1,6 +1,7 @@
 package ovh.gasser.newshapes.shapes;
 
 import ovh.gasser.newshapes.ShapeVisitor;
+import ovh.gasser.newshapes.attributes.ColorAttributes;
 import ovh.gasser.newshapes.attributes.SelectionAttributes;
 
 import java.awt.*;
@@ -19,13 +20,24 @@ public class SCircle extends AbstractShape {
         visitor.visitCircle(this);
     }
 
+    @Override
+    public Shape clone() {
+        var color = (ColorAttributes) getAttributes(ColorAttributes.ID);
+        return SCircle.create(super.getBounds().x, super.getBounds().y, this.radius, color.strokedColor);
+    }
+
     public int getRadius() {
         return radius;
     }
 
     public static SCircle create(int x, int y, int radius) {
+        return create(x, y, radius, Color.BLACK);
+    }
+
+    public static SCircle create(int x, int y, int radius, Color color) {
         var circle = new SCircle(x, y, radius);
         circle.addAttributes(new SelectionAttributes());
+        circle.addAttributes(new ColorAttributes(false, true, Color.BLACK,  color));
         return circle;
     }
 }

src/main/java/ovh/gasser/newshapes/shapes/SCollection.java

@@ -12,6 +12,7 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Spliterator;
+import java.util.stream.Collectors;
 
 public class SCollection extends AbstractShape implements Streamable<Shape> {
     private final static Logger logger = LoggerFactory.getLogger(SCollection.class);
@@ -43,6 +44,14 @@ public class SCollection extends AbstractShape implements Streamable<Shape> {
         }
     }
 
+    @Override
+    public Shape clone() {
+        var clonedChildren = children.stream().map(Shape::clone).toArray(Shape[]::new);
+        var collection = new SCollection(clonedChildren);
+        collection.addAttributes(new SelectionAttributes());
+        return collection;
+    }
+
     @Override
     public void setLoc(Point newLoc) {
         final Point loc = getBounds().getLocation();
@@ -59,6 +68,10 @@ public class SCollection extends AbstractShape implements Streamable<Shape> {
         return children.spliterator();
     }
 
+    public void add(Shape s) {
+        children.add(s);
+    }
+
     public void remove(Shape s) {
         if (!children.remove(s)) {
             logger.error("Unable to delete shape: {}", s);

src/main/java/ovh/gasser/newshapes/shapes/SRectangle.java

@@ -24,14 +24,19 @@ public class SRectangle extends AbstractShape {
                 '}';
     }
 
+    @Override
+    public Shape clone() {
+        var color = (ColorAttributes) this.getAttributes(ColorAttributes.ID);
+        return SRectangle.create(super.getBounds().x, super.getBounds().y, getBounds().width, getBounds().height, color.strokedColor);
+    }
+
     public static SRectangle create(int x, int y, int width, int height) {
-        SRectangle rect = new SRectangle(new Rectangle(x, y, width, height));
-        rect.addAttributes(new SelectionAttributes());
-        return rect;
+        return create(x, y, width, height, Color.BLACK);
     }
 
     public static SRectangle create(int x, int y, int width, int height, Color color) {
-        final SRectangle rect = create(x, y, width, height);
+        SRectangle rect = new SRectangle(new Rectangle(x, y, width, height));
+        rect.addAttributes(new SelectionAttributes());
         rect.addAttributes(new ColorAttributes(false, true, Color.BLACK, color));
         return rect;
     }

src/main/java/ovh/gasser/newshapes/shapes/Shape.java

@@ -12,4 +12,5 @@ public interface Shape {
     Attributes getAttributes(String key);
     void addAttributes(Attributes attr);
     Rectangle getBounds();
+    Shape clone();
 }