diff --git a/src/bedit_gui/utils/icon.py b/src/bedit_gui/utils/icon.py
new file mode 100644
index 0000000..51acf79
--- /dev/null
+++ b/src/bedit_gui/utils/icon.py
@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+from PySide6.QtCore import QRectF
+
+from bedit_gui.models import Icon, Line, Rectangle, Text
+
+PORT_SIZE = 16
+
+
+def get_bounding_box(icon: Icon) -> QRectF:
+    points: list[tuple[float, float]] = []
+
+    for shape in icon.shapes.values():
+        x, y = shape.pos
+        points.append((x, y))
+        if isinstance(shape, (Rectangle, Text)):
+            points.append((x + shape.width, y + shape.height))
+        elif isinstance(shape, Line):
+            points.append(shape.end)
+
+    for x, y in icon.port_positions.values():
+        points.append((x, y))
+        points.append((x + PORT_SIZE, y + PORT_SIZE))
+
+    if not points:
+        return QRectF()
+
+    left = min(point[0] for point in points)
+    top = min(point[1] for point in points)
+    right = max(point[0] for point in points)
+    bottom = max(point[1] for point in points)
+    return QRectF(left, top, right - left, bottom - top)