From ed4a0c3daf67499ac4e9a2e71e99e719aa26a29d Mon Sep 17 00:00:00 2001
From: rodrigoskohl <rodrigokohl1@yahoo.com.br>
Date: Mon, 18 Aug 2025 21:03:27 -0300
Subject: [PATCH] add AdjustBBoxToImageRatio node for dynamic bounding box
 adjustments

---
 py/crop_box_adjust_ratio.py | 56 +++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 py/crop_box_adjust_ratio.py

diff --git a/py/crop_box_adjust_ratio.py b/py/crop_box_adjust_ratio.py
new file mode 100644
index 00000000..c5d88200
--- /dev/null
+++ b/py/crop_box_adjust_ratio.py
@@ -0,0 +1,56 @@
+class AdjustBBoxToImageRatio:
+
+    def __init__(self):
+        self.NODE_NAME = 'AdjustBBoxToImageRatio'
+
+    @classmethod
+    def INPUT_TYPES(self):
+        return {
+            "required": {
+                "crop_box": ("BOX",),
+                "img_width": ("INT", {"default": 1920}),
+                "img_height": ("INT", {"default": 1080}),
+            }
+        }
+
+    RETURN_TYPES = ("BOX",)
+    RETURN_NAMES = ("crop_box",)
+    FUNCTION = "adjust_bbox"
+    CATEGORY = "😺dzNodes/LayerUtility"
+
+    def adjust_bbox(self, crop_box, img_width, img_height):
+        x1, y1, x2, y2 = crop_box
+        w = x2 - x1
+        h = y2 - y1
+        cx = x1 + w / 2
+        cy = y1 + h / 2
+
+        target_ratio = img_width / img_height
+        box_ratio = w / h
+
+        if box_ratio > target_ratio:
+            new_h = w / target_ratio
+            new_w = w
+        else:
+            new_w = h * target_ratio
+            new_h = h
+
+        new_w = min(new_w, img_width)
+        new_h = min(new_h, img_height)
+
+        cx = max(new_w / 2, min(cx, img_width - new_w / 2))
+        cy = max(new_h / 2, min(cy, img_height - new_h / 2))
+
+        new_x = cx - new_w / 2
+        new_y = cy - new_h / 2
+
+        return ((int(new_x), int(new_y), int(new_x + new_w), int(new_y + new_h)),)
+
+
+NODE_CLASS_MAPPINGS = {
+    "LayerUtility: AdjustBBoxToImageRatio": AdjustBBoxToImageRatio,
+}
+
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "LayerUtility: AdjustBBoxToImageRatio": "LayerUtility: AdjustBBoxToImageRatio",
+}
\ No newline at end of file