Fix bugs

src/Image.php

@@ -537,11 +537,16 @@ final class Image implements ImageInterface, Countable
         return $this->modify(new ResizeCanvasModifier($width, $height, $background, $position));
     }
 
+    /**
+     * {@inheritdoc}
+     *
+     * @see ImageInterface::resizeCanvasRelative()
+     */
     public function resizeCanvasRelative(
         ?int $width = null,
         ?int $height = null,
         mixed $background = 'ffffff',
-        string $position = 'center',
+        string $position = 'center'
     ): ImageInterface {
         return $this->modify(new ResizeCanvasRelativeModifier($width, $height, $background, $position));
     }

src/Interfaces/ImageInterface.php

@@ -403,7 +403,7 @@ interface ImageInterface extends IteratorAggregate, Countable
         int $width,
         int $height,
         mixed $background = 'ffffff',
-        string $position = 'center',
+        string $position = 'center'
     ): ImageInterface;
 
     /**
@@ -420,7 +420,7 @@ interface ImageInterface extends IteratorAggregate, Countable
         int $width,
         int $height,
         mixed $background = 'ffffff',
-        string $position = 'center',
+        string $position = 'center'
     ): ImageInterface;
 
     /**
@@ -440,7 +440,7 @@ interface ImageInterface extends IteratorAggregate, Countable
         int $height,
         int $offset_x = 0,
         int $offset_y = 0,
-        string $position = 'top-left',
+        string $position = 'top-left'
     ): ImageInterface;
 
     /**

src/Modifiers/ContainModifier.php

@@ -19,12 +19,28 @@ class ContainModifier extends AbstractModifier
     public function getCropSize(ImageInterface $image): SizeInterface
     {
         return $image->size()
-            ->contain($this->width, $this->height)
+            ->contain(
-            ->alignPivotTo($this->getResizeSize($image), $this->position);
+                $this->width,
+                $this->height
+            )
+            ->alignPivotTo(
+                $this->getResizeSize($image),
+                $this->position()
+            );
     }
 
     public function getResizeSize(ImageInterface $image): SizeInterface
     {
         return new Rectangle($this->width, $this->height);
     }
+
+    protected function position(): string
+    {
+        return strtr($this->position, [
+            'left' => 'right',
+            'right' => 'left',
+            'top' => 'bottom',
+            'bottom' => 'top',
+        ]);
+    }
 }

src/Modifiers/PadModifier.php

@@ -10,7 +10,13 @@ class PadModifier extends ContainModifier
     public function getCropSize(ImageInterface $image): SizeInterface
     {
         return $image->size()
-            ->containMax($this->width, $this->height)
+            ->containMax(
-            ->alignPivotTo($this->getResizeSize($image), $this->position);
+                $this->width,
+                $this->height
+            )
+            ->alignPivotTo(
+                $this->getResizeSize($image),
+                $this->position()
+            );
     }
 }

src/Modifiers/ResizeCanvasModifier.php

@@ -22,7 +22,10 @@ class ResizeCanvasModifier extends AbstractModifier
         $height = is_null($this->height) ? $image->height() : $this->height;
 
         return (new Rectangle($width, $height))
-            ->alignPivotTo($image->size(), $this->position());
+            ->alignPivotTo(
+                $image->size(),
+                $this->position()
+            );
     }
 
     protected function position(): string

src/Modifiers/ResizeCanvasRelativeModifier.php

@@ -14,6 +14,9 @@ class ResizeCanvasRelativeModifier extends ResizeCanvasModifier
         $height = is_null($this->height) ? $image->height() : $image->height() + $this->height;
 
         return (new Rectangle($width, $height))
-            ->alignPivotTo($image->size(), $this->position());
+            ->alignPivotTo(
+                $image->size(),
+                $this->position()
+            );
     }
 }