Refactor to PHP 8.1 code

src/Geometry/Circle.php

@@ -2,15 +2,16 @@
 
 namespace Intervention\Image\Geometry;
 
+use Intervention\Image\Interfaces\PointInterface;
+
 class Circle extends Ellipse
 {
     public function __construct(
         protected int $diameter,
-        protected ?Point $pivot = null
+        protected PointInterface $pivot = new Point()
     ) {
         $this->setWidth($diameter);
         $this->setHeight($diameter);
-        $this->pivot = $pivot ? $pivot : new Point();
     }
 
     public function diameter(int $diameter): self

src/Geometry/Ellipse.php

@@ -5,6 +5,7 @@ namespace Intervention\Image\Geometry;
 use Intervention\Image\Geometry\Traits\HasBackgroundColor;
 use Intervention\Image\Geometry\Traits\HasBorder;
 use Intervention\Image\Interfaces\DrawableInterface;
+use Intervention\Image\Interfaces\PointInterface;
 
 class Ellipse implements DrawableInterface
 {
@@ -14,9 +15,9 @@ class Ellipse implements DrawableInterface
     public function __construct(
         protected int $width,
         protected int $height,
-        protected ?Point $pivot = null
+        protected PointInterface $pivot = new Point()
     ) {
-        $this->pivot = $pivot ? $pivot : new Point();
+        //
     }
 
     public function size(int $width, int $height): self

src/Geometry/Polygon.php

@@ -10,6 +10,7 @@ use IteratorAggregate;
 use Intervention\Image\Geometry\Traits\HasBackgroundColor;
 use Intervention\Image\Geometry\Traits\HasBorder;
 use Intervention\Image\Interfaces\DrawableInterface;
+use Intervention\Image\Interfaces\PointInterface;
 
 class Polygon implements IteratorAggregate, Countable, ArrayAccess, DrawableInterface
 {
@@ -18,9 +19,9 @@ class Polygon implements IteratorAggregate, Countable, ArrayAccess, DrawableInte
 
     public function __construct(
         protected array $points = [],
-        protected ?Point $pivot = null
+        protected PointInterface $pivot = new Point()
     ) {
-        $this->pivot = $pivot ? $pivot : new Point();
+        //
     }
 
     public function getIterator(): Traversable
@@ -31,9 +32,9 @@ class Polygon implements IteratorAggregate, Countable, ArrayAccess, DrawableInte
     /**
      * Return current pivot point
      *
-     * @return Point
+     * @return PointInterface
      */
-    public function getPivot(): Point
+    public function getPivot(): PointInterface
     {
         return $this->pivot;
     }

src/Geometry/Rectangle.php

@@ -17,9 +17,8 @@ class Rectangle extends Polygon implements SizeInterface, DrawableInterface
     public function __construct(
         int $width,
         int $height,
-        protected ?Point $pivot = null
+        protected PointInterface $pivot = new Point()
     ) {
-        $this->pivot = $pivot ? $pivot : new Point();
         $this->addPoint(new Point($this->pivot->x(), $this->pivot->y()));
         $this->addPoint(new Point($this->pivot->x() + $width, $this->pivot->y()));
         $this->addPoint(new Point($this->pivot->x() + $width, $this->pivot->y() - $height));
@@ -62,7 +61,7 @@ class Rectangle extends Polygon implements SizeInterface, DrawableInterface
         return $this;
     }
 
-    public function pivot(): Point
+    public function pivot(): PointInterface
     {
         return $this->pivot;
     }

src/Interfaces/PointInterface.php

@@ -17,4 +17,13 @@ interface PointInterface
      * @return int
      */
     public function y(): int;
+
+    /**
+     * Set position of point
+     *
+     * @param  int $x
+     * @param  int $y
+     * @return PointInterface
+     */
+    public function setPosition(int $x, int $y): PointInterface;
 }