Implement copy action

src/main/java/ovh/gasser/newshapes/App.java

@@ -3,7 +3,6 @@ package ovh.gasser.newshapes;
 import ovh.gasser.newshapes.shapes.SCircle;
 import ovh.gasser.newshapes.shapes.SCollection;
 import ovh.gasser.newshapes.shapes.SRectangle;
-import ovh.gasser.newshapes.shapes.Shape;
 import ovh.gasser.newshapes.ui.ShapesView;
 
 import javax.swing.*;
@@ -12,7 +11,7 @@ import java.awt.*;
 public class App {
 
     public static final Dimension WIN_SIZE = new Dimension(800, 600);
-    private Shape model;
+    private SCollection model;
 
     private App() throws HeadlessException {
         final JFrame frame = new JFrame("Reactive shapes");

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();
 }

src/main/java/ovh/gasser/newshapes/ui/Controller.java

@@ -15,10 +15,10 @@ import java.util.Optional;
 public class Controller {
     private final static Logger logger = LoggerFactory.getLogger(Controller.class);
     private final ShapesView view;
-    private final Shape model;
+    private final SCollection model;
     private Selection selection;
 
-    Controller(ShapesView view, Shape model) {
+    Controller(ShapesView view, SCollection model) {
         this.view = view;
         this.model = model;
 
@@ -53,8 +53,7 @@ public class Controller {
     }
 
     private void handleMousePressed(MouseEvent evt) {
-        var sc = (SCollection) this.model;
-        getTarget(evt, sc)
+        getTarget(evt, this.model)
                 .ifPresentOrElse(
                         s -> {
                             if (selection != null) resetSelection();
@@ -73,18 +72,29 @@ public class Controller {
             case KeyEvent.VK_DELETE:
                 deleteSelected();
                 break;
+            case KeyEvent.VK_C:
+                copySelection();
+                break;
             default:
                 logger.warn("Pressed unhandled key: {}", evt.getKeyChar());
                 break;
         }
     }
 
+    private void copySelection() {
+        if (selection == null) {
+            logger.debug("No selection to copy");
+            return;
+        }
+        this.model.add(selection.shape.clone());
+        view.repaint();
+    }
+
     private void deleteSelected() {
         if (selection == null) return;
         logger.debug("Deleting selected shape(s)");
-        var sc = (SCollection) this.model;
-        sc.remove(selection.shape);
-        selection = null;
+        this.model.remove(selection.shape);
+        resetSelection();
         view.repaint();
     }
 

src/main/java/ovh/gasser/newshapes/ui/ShapesView.java

@@ -3,6 +3,7 @@ package ovh.gasser.newshapes.ui;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import ovh.gasser.newshapes.ShapeVisitor;
+import ovh.gasser.newshapes.shapes.SCollection;
 import ovh.gasser.newshapes.shapes.Shape;
 
 import javax.swing.*;
@@ -15,7 +16,7 @@ public class ShapesView extends JPanel {
     private final Controller controller;
     private ShapeVisitor draftman;
 
-    public ShapesView(Shape model) {
+    public ShapesView(SCollection model) {
         this.model = model;
         this.controller = new Controller(this, model);
     }