increase phpstan level + fixes

phpstan.neon.dist

@@ -2,7 +2,7 @@ includes:
  - phpstan-baseline.neon
 
 parameters:
- level: 6
+ level: 9
  paths:
  - src/
 

src/Drivers/Concerns/CalculatesFocalCropCoordinates.php

@@ -5,8 +5,8 @@
 /** @mixin \Spatie\Image\Drivers\ImageDriver */
 trait CalculatesFocalCropCoordinates
 {
- /** @return array<int> */
- protected function calculateFocalCropCoordinates(int $width, int $height, int $cropCenterX, int $cropCenterY): array
+ /** @return array<int, int|null> */
+ protected function calculateFocalCropCoordinates(int $width, int $height, ?int $cropCenterX, ?int $cropCenterY): array
  {
  $width = min($width, $this->getWidth());
  $height = min($height, $this->getHeight());

src/Drivers/Gd/GdDriver.php

@@ -215,7 +215,7 @@ protected function modify(
 
  $transparentColorValue = imagecolortransparent($this->image);
 
- if ($transparentColorValue != -1) {
+ if ($transparentColorValue !== -1) {
  $rgba = imagecolorsforindex($newImage, $transparentColorValue);
 
  $transparentColor = imagecolorallocatealpha(
@@ -656,6 +656,7 @@ public function border(int $width, BorderType $type, string $color = '000000'):
  return $this;
  }
 
+ /** @param int<-1, 100> $quality */
  public function quality(int $quality): self
  {
  $this->ensureNumberBetween($quality, -1, 100, 'quality');

src/Size.php

@@ -9,8 +9,8 @@
 class Size
 {
  public function __construct(
- public int|float $width,
- public int|float $height,
+ public int $width,
+ public int $height,
  public Point $pivot = new Point()
  ) {
  }
@@ -42,6 +42,7 @@ public function resize(
  ->resizeWidth($desiredWidth, $constraints)
  ->resizeHeight($desiredHeight, $constraints);
 
+ // @todo desiredWidth and desiredHeight can still be null here, which will cause an error
  return $dominantHeightSize->fitsInto(new Size($desiredWidth, $desiredHeight))
  ? $dominantHeightSize
  : $dominantWidthSize;