implement resize feature

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

@@ -38,6 +38,10 @@ public class Selection implements Streamable<Shape> {
         notifyListeners();
     }
 
+    public boolean isEmpty() {
+        return selectedShapes.isEmpty();
+    }
+
     public List<Shape> getSelectedShapes() {
         return List.copyOf(selectedShapes);
     }

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

@@ -34,6 +34,45 @@ public abstract class AbstractShape implements Shape {
         getBounds().translate(dx, dy);
     }
 
+    @Override
+    public void resize(ResizeHandle handle, int dx, int dy) {
+        Rectangle bounds = getBounds();
+        switch (handle) {
+            case E -> bounds.width += dx;
+            case W -> {
+                bounds.x += dx;
+                bounds.width -= dx;
+            }
+            case S -> bounds.height += dy;
+            case N -> {
+                bounds.y += dy;
+                bounds.height -= dy;
+            }
+            case SE -> {
+                bounds.width += dx;
+                bounds.height += dy;
+            }
+            case SW -> {
+                bounds.x += dx;
+                bounds.width -= dx;
+                bounds.height += dy;
+            }
+            case NE -> {
+                bounds.width += dx;
+                bounds.y += dy;
+                bounds.height -= dy;
+            }
+            case NW -> {
+                bounds.x += dx;
+                bounds.width -= dx;
+                bounds.y += dy;
+                bounds.height -= dy;
+            }
+        }
+        if (bounds.width < 1) bounds.width = 1;
+        if (bounds.height < 1) bounds.height = 1;
+    }
+
     @Override
     public Rectangle getBounds() {
         return this.bounds;

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

@@ -0,0 +1,24 @@
+package ovh.gasser.newshapes.shapes;
+
+import java.awt.Cursor;
+
+public enum ResizeHandle {
+    NW(Cursor.NW_RESIZE_CURSOR),
+    N(Cursor.N_RESIZE_CURSOR),
+    NE(Cursor.NE_RESIZE_CURSOR),
+    E(Cursor.E_RESIZE_CURSOR),
+    SE(Cursor.SE_RESIZE_CURSOR),
+    S(Cursor.S_RESIZE_CURSOR),
+    SW(Cursor.SW_RESIZE_CURSOR),
+    W(Cursor.W_RESIZE_CURSOR);
+
+    private final int cursorType;
+
+    ResizeHandle(int cursorType) {
+        this.cursorType = cursorType;
+    }
+
+    public int getCursorType() {
+        return cursorType;
+    }
+}

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

@@ -8,7 +8,7 @@ import java.awt.*;
 
 public class SCircle extends AbstractShape {
 
-    private final int radius;
+    private int radius;
 
     private SCircle(int x, int y, int radius) {
         super(new Rectangle(x, y, radius * 2, radius * 2));
@@ -20,6 +20,32 @@ public class SCircle extends AbstractShape {
         visitor.visitCircle(this);
     }
 
+    @Override
+    public void resize(ResizeHandle handle, int dx, int dy) {
+        Rectangle bounds = getBounds();
+        int newWidth = bounds.width;
+        int newHeight = bounds.height;
+
+        switch (handle) {
+            case E, W -> newWidth += dx;
+            case N, S -> newHeight += dy;
+            case SE, NW -> {
+                newWidth += dx;
+                newHeight += dy;
+            }
+            case NE, SW -> {
+                newWidth += dx;
+                newHeight += dy;
+            }
+        }
+
+        if (newWidth < 2) newWidth = 2;
+        if (newHeight < 2) newHeight = 2;
+
+        this.radius = Math.max(newWidth, newHeight) / 2;
+        bounds.setSize(this.radius * 2, this.radius * 2);
+    }
+
     @Override
     public Shape clone() {
         var color = (ColorAttributes) getAttributes(ColorAttributes.ID);

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

@@ -16,6 +16,54 @@ public class STriangle extends AbstractShape {
         visitor.visitTriangle(this);
     }
 
+    @Override
+    public void resize(ResizeHandle handle, int dx, int dy) {
+        Rectangle bounds = getBounds();
+        int delta = Math.max(Math.abs(dx), Math.abs(dy));
+
+        boolean shrink = switch (handle) {
+            case SE -> (dx < 0 || dy < 0);
+            case NW -> (dx > 0 || dy > 0);
+            case NE -> (dx < 0);
+            case SW -> (dx > 0);
+            case E, W -> (dx < 0);
+            case N, S -> (dy < 0);
+            default -> false;
+        };
+
+        int sizeChange = shrink ? -delta : delta;
+
+        switch (handle) {
+            case SE, E, W -> {
+                bounds.width += sizeChange;
+                bounds.height += sizeChange;
+            }
+            case NW -> {
+                bounds.x -= sizeChange;
+                bounds.width += sizeChange;
+                bounds.y -= sizeChange;
+                bounds.height += sizeChange;
+            }
+            case NE -> {
+                bounds.y -= sizeChange;
+                bounds.width += sizeChange;
+                bounds.height += sizeChange;
+            }
+            case SW -> {
+                bounds.x -= sizeChange;
+                bounds.width += sizeChange;
+                bounds.height += sizeChange;
+            }
+            case N, S -> {
+                bounds.width += sizeChange;
+                bounds.height += sizeChange;
+            }
+        }
+
+        if (bounds.width < 1) bounds.width = 1;
+        if (bounds.height < 1) bounds.height = 1;
+    }
+
     @Override
     public Shape clone() {
         var color = (ColorAttributes) getAttributes(ColorAttributes.ID);

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

@@ -8,6 +8,7 @@ import java.awt.*;
 public interface Shape {
     void accept(ShapeVisitor visitor);
     void translate(int dx, int dy);
+    void resize(ResizeHandle handle, int dx, int dy);
     Attributes getAttributes(String key);
     void addAttributes(Attributes attr);
     Rectangle getBounds();

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;
+        if (resizeMode && resizing && activeHandle != null) {
-        int dy = evt.getY() - lastMousePos.y;
+            int dx = evt.getX() - resizeOrigin.x;
-        for (Shape shape : selection) {
+            int dy = evt.getY() - resizeOrigin.y;
-            shape.translate(dx, dy);
+            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 {

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

@@ -13,12 +13,16 @@ public class ShapeDraftman implements ShapeVisitor {
     private static final ColorAttributes DEFAULT_COLOR_ATTRIBUTES =
             new ColorAttributes(false, true, Color.BLACK, Color.BLACK);
     private final Graphics2D g2d;
-
+    private boolean resizeMode;
 
     public ShapeDraftman(Graphics graph) {
         this.g2d = (Graphics2D) graph;
     }
 
+    public void setResizeMode(boolean resizeMode) {
+        this.resizeMode = resizeMode;
+    }
+
     @Override
     public void visitRectangle(SRectangle rect) {
         Rectangle r = rect.getBounds();
@@ -129,8 +133,17 @@ public class ShapeDraftman implements ShapeVisitor {
         if ((selAttrs != null) && (selAttrs.selected)){
             Rectangle bounds = s.getBounds();
             this.g2d.setColor(Color.RED);
-            this.g2d.drawRect(bounds.x - 5, bounds.y - 5, 5, 5);
+            int handleSize = 5;
-            this.g2d.drawRect(bounds.x + bounds.width, bounds.y + bounds.height, 5, 5);
+            this.g2d.drawRect(bounds.x - handleSize, bounds.y - handleSize, handleSize, handleSize);
+            this.g2d.drawRect(bounds.x + bounds.width, bounds.y + bounds.height, handleSize, handleSize);
+            if (resizeMode) {
+                this.g2d.drawRect(bounds.x + bounds.width, bounds.y - handleSize, handleSize, handleSize);
+                this.g2d.drawRect(bounds.x - handleSize, bounds.y + bounds.height, handleSize, handleSize);
+                this.g2d.drawRect(bounds.x + bounds.width / 2 - handleSize / 2, bounds.y - handleSize, handleSize, handleSize);
+                this.g2d.drawRect(bounds.x + bounds.width / 2 - handleSize / 2, bounds.y + bounds.height, handleSize, handleSize);
+                this.g2d.drawRect(bounds.x - handleSize, bounds.y + bounds.height / 2 - handleSize / 2, handleSize, handleSize);
+                this.g2d.drawRect(bounds.x + bounds.width, bounds.y + bounds.height / 2 - handleSize / 2, handleSize, handleSize);
+            }
         }
     }
 

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

@@ -12,6 +12,7 @@ public class ShapesView extends JPanel {
     private final Shape model;
     private final Controller controller;
     private ShapeVisitor draftman;
+    private boolean resizeMode;
 
     public ShapesView(SCollection model) {
         this.model = model;
@@ -22,6 +23,7 @@ public class ShapesView extends JPanel {
     protected void paintComponent(Graphics g) {
         super.paintComponent(g);
         this.draftman = new ShapeDraftman(g);
+        ((ShapeDraftman) this.draftman).setResizeMode(resizeMode);
         model.accept(draftman);
     }
 
@@ -32,4 +34,8 @@ public class ShapesView extends JPanel {
     public void addSelectionChangeListener(SelectionListener listener) {
         controller.addSelectionChangeListener(listener);
     }
+
+    public void setResizeMode(boolean resizeMode) {
+        this.resizeMode = resizeMode;
+    }
 }