feat(image): implement crop

Author: Brooooooklyn

packages/binding/src/transformer.rs

@@ -362,6 +362,7 @@ struct ImageTransformArgs {
   brightness: Option<i32>,
   huerotate: Option<i32>,
   orientation: Option<Orientation>,
+  crop: Option<(u32, u32, u32, u32)>,
 }
 
 pub struct EncodeTask {
@@ -443,6 +444,9 @@ impl Task for EncodeTask {
     if let Some(hue) = self.image_transform_args.huerotate {
       meta.image = meta.image.huerotate(hue);
     }
+    if let Some((x, y, width, height)) = self.image_transform_args.crop {
+      meta.image = meta.image.crop_imm(x, y, width, height);
+    }
     let dynamic_image = &mut meta.image;
     let color_type = &meta.color_type;
     let width = dynamic_image.width();
@@ -728,6 +732,13 @@ impl Transformer {
     self
   }
 
+  #[napi]
+  /// Crop a cut-out of this image delimited by the bounding rectangle.
+  pub fn crop(&mut self, x: u32, y: u32, width: u32, height: u32) -> &Self {
+    self.image_transform_args.crop = Some((x, y, width, height));
+    self
+  }
+
   #[napi]
   /// The quality factor `quality_factor` ranges from 0 to 100 and controls the loss and quality during compression.
   /// The value 0 corresponds to low quality and small output sizes, whereas 100 is the highest quality and largest output size.