Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/openpyxl/drawing/drawing.py

@@ -0,0 +1,92 @@
+
+# Copyright (c) 2010-2024 openpyxl
+
+import math
+
+from openpyxl.utils.units import pixels_to_EMU
+
+
+class Drawing:
+    """ a drawing object - eg container for shapes or charts
+        we assume user specifies dimensions in pixels; units are
+        converted to EMU in the drawing part
+    """
+
+    count = 0
+
+    def __init__(self):
+
+        self.name = ''
+        self.description = ''
+        self.coordinates = ((1, 2), (16, 8))
+        self.left = 0
+        self.top = 0
+        self._width = 21 # default in px
+        self._height = 192 #default in px
+        self.resize_proportional = False
+        self.rotation = 0
+        self.anchortype = "absolute"
+        self.anchorcol = 0 # left cell
+        self.anchorrow = 0 # top row
+
+
+    @property
+    def width(self):
+        return self._width
+
+
+    @width.setter
+    def width(self, w):
+        if self.resize_proportional and w:
+            ratio = self._height / self._width
+            self._height = round(ratio * w)
+        self._width = w
+
+
+    @property
+    def height(self):
+        return self._height
+
+
+    @height.setter
+    def height(self, h):
+        if self.resize_proportional and h:
+            ratio = self._width / self._height
+            self._width = round(ratio * h)
+        self._height = h
+
+
+    def set_dimension(self, w=0, h=0):
+
+        xratio = w / self._width
+        yratio = h / self._height
+
+        if self.resize_proportional and w and h:
+            if (xratio * self._height) < h:
+                self._height = math.ceil(xratio * self._height)
+                self._width = w
+            else:
+                self._width = math.ceil(yratio * self._width)
+                self._height = h
+
+
+    @property
+    def anchor(self):
+        from .spreadsheet_drawing import (
+            OneCellAnchor,
+            TwoCellAnchor,
+            AbsoluteAnchor)
+        if self.anchortype == "absolute":
+            anchor = AbsoluteAnchor()
+            anchor.pos.x = pixels_to_EMU(self.left)
+            anchor.pos.y = pixels_to_EMU(self.top)
+
+        elif self.anchortype == "oneCell":
+            anchor = OneCellAnchor()
+            anchor._from.col = self.anchorcol
+            anchor._from.row = self.anchorrow
+
+        anchor.ext.width = pixels_to_EMU(self._width)
+        anchor.ext.height = pixels_to_EMU(self._height)
+
+        return anchor