Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/openpyxl/utils/units.py

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+
+# Copyright (c) 2010-2024 openpyxl
+
+import math
+
+
+#constants
+
+DEFAULT_ROW_HEIGHT = 15.  # Default row height measured in point size.
+BASE_COL_WIDTH = 8 # in characters
+DEFAULT_COLUMN_WIDTH = BASE_COL_WIDTH + 5
+#  = baseColumnWidth + {margin padding (2 pixels on each side, totalling 4 pixels)} + {gridline (1pixel)}
+
+
+DEFAULT_LEFT_MARGIN = 0.7 # in inches, = right margin
+DEFAULT_TOP_MARGIN = 0.7874 # in inches = bottom margin
+DEFAULT_HEADER = 0.3 # in inches
+
+
+# Conversion functions
+"""
+From the ECMA Spec (4th Edition part 1)
+Page setup: "Left Page Margin in inches" p. 1647
+
+Docs from
+http://startbigthinksmall.wordpress.com/2010/01/04/points-inches-and-emus-measuring-units-in-office-open-xml/
+
+See also http://msdn.microsoft.com/en-us/library/dd560821(v=office.12).aspx
+
+dxa: The main unit in OOXML is a twentieth of a point. Also called twips.
+pt: point. In Excel there are 72 points to an inch
+hp: half-points are used to specify font sizes. A font-size of 12pt equals 24 half points
+pct: Half-points are used to specify font sizes. A font-size of 12pt equals 24 half points
+
+EMU: English Metric Unit, EMUs are used for coordinates in vector-based
+drawings and embedded pictures. One inch equates to 914400 EMUs and a
+centimeter is 360000. For bitmaps the default resolution is 96 dpi (known as
+PixelsPerInch in Excel). Spec p. 1122
+
+For radial geometry Excel uses integer units of 1/60000th of a degree.
+"""
+
+
+
+def inch_to_dxa(value):
+    """1 inch = 72 * 20 dxa"""
+    return int(value * 20 * 72)
+
+def dxa_to_inch(value):
+    return value / 72 / 20
+
+
+def dxa_to_cm(value):
+    return 2.54 * dxa_to_inch(value)
+
+def cm_to_dxa(value):
+    emu = cm_to_EMU(value)
+    inch = EMU_to_inch(emu)
+    return inch_to_dxa(inch)
+
+
+def pixels_to_EMU(value):
+    """1 pixel = 9525 EMUs"""
+    return int(value * 9525)
+
+def EMU_to_pixels(value):
+    return round(value / 9525)
+
+
+def cm_to_EMU(value):
+    """1 cm = 360000 EMUs"""
+    return int(value * 360000)
+
+def EMU_to_cm(value):
+    return round(value / 360000, 4)
+
+
+def inch_to_EMU(value):
+    """1 inch = 914400 EMUs"""
+    return int(value * 914400)
+
+def EMU_to_inch(value):
+    return round(value / 914400, 4)
+
+
+def pixels_to_points(value, dpi=96):
+    """96 dpi, 72i"""
+    return value * 72 / dpi
+
+
+def points_to_pixels(value, dpi=96):
+    return int(math.ceil(value * dpi / 72))
+
+
+def degrees_to_angle(value):
+    """1 degree = 60000 angles"""
+    return int(round(value * 60000))
+
+
+def angle_to_degrees(value):
+    return round(value / 60000, 2)
+
+
+def short_color(color):
+    """ format a color to its short size """
+    if len(color) > 6:
+        return color[2:]
+    return color