implement resize feature

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

@@ -5,6 +5,7 @@ import org.slf4j.LoggerFactory;
 import ovh.gasser.newshapes.HTMLExporter;
 import ovh.gasser.newshapes.Selection;
 import ovh.gasser.newshapes.attributes.ColorAttributes;
+import ovh.gasser.newshapes.shapes.ResizeHandle;
 import ovh.gasser.newshapes.shapes.SCollection;
 import ovh.gasser.newshapes.shapes.SText;
 import ovh.gasser.newshapes.shapes.Shape;
@@ -27,6 +28,10 @@ public class Controller {
 
     private Point lastMousePos;
     private boolean addingText;
+    private boolean resizing;
+    private ResizeHandle activeHandle;
+    private Point resizeOrigin;
+    private boolean resizeMode;
 
     Controller(ShapesView view, SCollection model) {
         this.view = view;
@@ -43,6 +48,13 @@ public class Controller {
             public void mouseDragged(MouseEvent evt) {
                 handleMouseDragged(evt);
             }
+
+            @Override
+            public void mouseReleased(MouseEvent evt) {
+                resizing = false;
+                activeHandle = null;
+                resizeOrigin = null;
+            }
         };
         this.view.addMouseMotionListener(adapter);
         this.view.addMouseListener(adapter);
@@ -55,12 +67,31 @@ public class Controller {
     }
 
     private void handleMouseDragged(MouseEvent evt) {
-        int dx = evt.getX() - lastMousePos.x;
-        int dy = evt.getY() - lastMousePos.y;
-        for (Shape shape : selection) {
-            shape.translate(dx, dy);
+        if (resizeMode && resizing && activeHandle != null) {
+            int dx = evt.getX() - resizeOrigin.x;
+            int dy = evt.getY() - resizeOrigin.y;
+            for (Shape shape : selection) {
+                shape.resize(activeHandle, dx, dy);
+            }
+            resizeOrigin = evt.getPoint();
+        } else if (resizeMode && !selection.isEmpty()) {
+            lastMousePos = evt.getPoint();
+            ResizeHandle handle = getHandleAt(evt.getPoint());
+            if (handle != null) {
+                resizing = true;
+                activeHandle = handle;
+                resizeOrigin = evt.getPoint();
+            }
+        } else {
+            resizing = false;
+            activeHandle = null;
+            int dx = evt.getX() - lastMousePos.x;
+            int dy = evt.getY() - lastMousePos.y;
+            for (Shape shape : selection) {
+                shape.translate(dx, dy);
+            }
+            lastMousePos = evt.getPoint();
         }
-        lastMousePos = evt.getPoint();
         view.repaint();
     }
 
@@ -70,6 +101,21 @@ public class Controller {
             return;
         }
 
+        resizing = false;
+        activeHandle = null;
+        resizeOrigin = null;
+
+        if (resizeMode && !selection.isEmpty()) {
+            ResizeHandle handle = getHandleAt(evt.getPoint());
+            if (handle != null) {
+                resizing = true;
+                activeHandle = handle;
+                resizeOrigin = evt.getPoint();
+                view.repaint();
+                return;
+            }
+        }
+
         getTarget(evt, this.model)
                 .ifPresentOrElse(
                         s -> {
@@ -85,6 +131,7 @@ public class Controller {
         view.repaint();
     }
 
+<<<<<<< HEAD
     public void enterTextMode() {
         addingText = true;
     }
@@ -101,8 +148,32 @@ public class Controller {
         view.repaint();
     }
 
+    public void enterTextMode() {
+        addingText = true;
+    }
+
+    private ResizeHandle getHandleAt(Point point) {
+        final int handleSize = 5;
+        for (Shape shape : selection) {
+            Rectangle bounds = shape.getBounds();
+            int cx = bounds.x + bounds.width / 2;
+            int cy = bounds.y + bounds.height / 2;
+
+            if (point.x < cx && point.y < cy) return ResizeHandle.NW;
+            if (point.x > cx && point.y < cy) return ResizeHandle.NE;
+            if (point.x < cx && point.y > cy) return ResizeHandle.SW;
+            if (point.x > cx && point.y > cy) return ResizeHandle.SE;
+            if (point.y < cy) return ResizeHandle.N;
+            if (point.y > cy) return ResizeHandle.S;
+            if (point.x < cx) return ResizeHandle.W;
+            if (point.x > cx) return ResizeHandle.E;
+        }
+        return null;
+    }
+
     private void handleKeyPressed(KeyEvent evt) {
         switch (evt.getKeyCode()) {
+            case KeyEvent.VK_R -> toggleResizeMode();
             case KeyEvent.VK_DELETE -> deleteSelected();
             case KeyEvent.VK_C -> copySelection();
             case KeyEvent.VK_A -> changeSelectionColor();
@@ -111,6 +182,14 @@ public class Controller {
         }
     }
 
+    private void toggleResizeMode() {
+        if (!selection.isEmpty()) {
+            resizeMode = !resizeMode;
+            view.setResizeMode(resizeMode);
+            view.repaint();
+        }
+    }
+
     private void exportHtml() {
         logger.info("Exporting view to html");
         try {