Updated script that can be controled by Nodejs web app

lib/python3.13/site-packages/openpyxl/styles/fills.py

@@ -0,0 +1,224 @@
+
+# Copyright (c) 2010-2024 openpyxl
+
+from openpyxl.descriptors import (
+    Float,
+    Set,
+    Alias,
+    NoneSet,
+    Sequence,
+    Integer,
+    MinMax,
+)
+from openpyxl.descriptors.serialisable import Serialisable
+from openpyxl.compat import safe_string
+
+from .colors import ColorDescriptor, Color
+
+from openpyxl.xml.functions import Element, localname
+from openpyxl.xml.constants import SHEET_MAIN_NS
+
+
+FILL_NONE = 'none'
+FILL_SOLID = 'solid'
+FILL_PATTERN_DARKDOWN = 'darkDown'
+FILL_PATTERN_DARKGRAY = 'darkGray'
+FILL_PATTERN_DARKGRID = 'darkGrid'
+FILL_PATTERN_DARKHORIZONTAL = 'darkHorizontal'
+FILL_PATTERN_DARKTRELLIS = 'darkTrellis'
+FILL_PATTERN_DARKUP = 'darkUp'
+FILL_PATTERN_DARKVERTICAL = 'darkVertical'
+FILL_PATTERN_GRAY0625 = 'gray0625'
+FILL_PATTERN_GRAY125 = 'gray125'
+FILL_PATTERN_LIGHTDOWN = 'lightDown'
+FILL_PATTERN_LIGHTGRAY = 'lightGray'
+FILL_PATTERN_LIGHTGRID = 'lightGrid'
+FILL_PATTERN_LIGHTHORIZONTAL = 'lightHorizontal'
+FILL_PATTERN_LIGHTTRELLIS = 'lightTrellis'
+FILL_PATTERN_LIGHTUP = 'lightUp'
+FILL_PATTERN_LIGHTVERTICAL = 'lightVertical'
+FILL_PATTERN_MEDIUMGRAY = 'mediumGray'
+
+fills = (FILL_SOLID, FILL_PATTERN_DARKDOWN, FILL_PATTERN_DARKGRAY,
+         FILL_PATTERN_DARKGRID, FILL_PATTERN_DARKHORIZONTAL, FILL_PATTERN_DARKTRELLIS,
+         FILL_PATTERN_DARKUP, FILL_PATTERN_DARKVERTICAL, FILL_PATTERN_GRAY0625,
+         FILL_PATTERN_GRAY125, FILL_PATTERN_LIGHTDOWN, FILL_PATTERN_LIGHTGRAY,
+         FILL_PATTERN_LIGHTGRID, FILL_PATTERN_LIGHTHORIZONTAL,
+         FILL_PATTERN_LIGHTTRELLIS, FILL_PATTERN_LIGHTUP, FILL_PATTERN_LIGHTVERTICAL,
+         FILL_PATTERN_MEDIUMGRAY)
+
+
+class Fill(Serialisable):
+
+    """Base class"""
+
+    tagname = "fill"
+
+    @classmethod
+    def from_tree(cls, el):
+        children = [c for c in el]
+        if not children:
+            return
+        child = children[0]
+        if "patternFill" in child.tag:
+            return PatternFill._from_tree(child)
+        return super(Fill, GradientFill).from_tree(child)
+
+
+class PatternFill(Fill):
+    """Area fill patterns for use in styles.
+    Caution: if you do not specify a fill_type, other attributes will have
+    no effect !"""
+
+    tagname = "patternFill"
+
+    __elements__ = ('fgColor', 'bgColor')
+
+    patternType = NoneSet(values=fills)
+    fill_type = Alias("patternType")
+    fgColor = ColorDescriptor()
+    start_color = Alias("fgColor")
+    bgColor = ColorDescriptor()
+    end_color = Alias("bgColor")
+
+    def __init__(self, patternType=None, fgColor=Color(), bgColor=Color(),
+                 fill_type=None, start_color=None, end_color=None):
+        if fill_type is not None:
+            patternType = fill_type
+        self.patternType = patternType
+        if start_color is not None:
+            fgColor = start_color
+        self.fgColor = fgColor
+        if end_color is not None:
+            bgColor = end_color
+        self.bgColor = bgColor
+
+    @classmethod
+    def _from_tree(cls, el):
+        attrib = dict(el.attrib)
+        for child in el:
+            desc = localname(child)
+            attrib[desc] = Color.from_tree(child)
+        return cls(**attrib)
+
+
+    def to_tree(self, tagname=None, idx=None):
+        parent = Element("fill")
+        el = Element(self.tagname)
+        if self.patternType is not None:
+            el.set('patternType', self.patternType)
+        for c in self.__elements__:
+            value = getattr(self, c)
+            if value != Color():
+                el.append(value.to_tree(c))
+        parent.append(el)
+        return parent
+
+
+DEFAULT_EMPTY_FILL = PatternFill()
+DEFAULT_GRAY_FILL = PatternFill(patternType='gray125')
+
+
+class Stop(Serialisable):
+
+    tagname = "stop"
+
+    position = MinMax(min=0, max=1)
+    color = ColorDescriptor()
+
+    def __init__(self, color, position):
+        self.position = position
+        self.color = color
+
+
+def _assign_position(values):
+    """
+    Automatically assign positions if a list of colours is provided.
+
+    It is not permitted to mix colours and stops
+    """
+    n_values = len(values)
+    n_stops = sum(isinstance(value, Stop) for value in values)
+
+    if n_stops == 0:
+        interval = 1
+        if n_values > 2:
+            interval = 1 / (n_values - 1)
+        values = [Stop(value, i * interval)
+                  for i, value in enumerate(values)]
+
+    elif n_stops < n_values:
+        raise ValueError('Cannot interpret mix of Stops and Colors in GradientFill')
+
+    pos = set()
+    for stop in values:
+        if stop.position in pos:
+            raise ValueError("Duplicate position {0}".format(stop.position))
+        pos.add(stop.position)
+
+    return values
+
+
+class StopList(Sequence):
+
+    expected_type = Stop
+
+    def __set__(self, obj, values):
+        values = _assign_position(values)
+        super().__set__(obj, values)
+
+
+class GradientFill(Fill):
+    """Fill areas with gradient
+
+    Two types of gradient fill are supported:
+
+        - A type='linear' gradient interpolates colours between
+          a set of specified Stops, across the length of an area.
+          The gradient is left-to-right by default, but this
+          orientation can be modified with the degree
+          attribute.  A list of Colors can be provided instead
+          and they will be positioned with equal distance between them.
+
+        - A type='path' gradient applies a linear gradient from each
+          edge of the area. Attributes top, right, bottom, left specify
+          the extent of fill from the respective borders. Thus top="0.2"
+          will fill the top 20% of the cell.
+
+    """
+
+    tagname = "gradientFill"
+
+    type = Set(values=('linear', 'path'))
+    fill_type = Alias("type")
+    degree = Float()
+    left = Float()
+    right = Float()
+    top = Float()
+    bottom = Float()
+    stop = StopList()
+
+
+    def __init__(self, type="linear", degree=0, left=0, right=0, top=0,
+                 bottom=0, stop=()):
+        self.degree = degree
+        self.left = left
+        self.right = right
+        self.top = top
+        self.bottom = bottom
+        self.stop = stop
+        self.type = type
+
+
+    def __iter__(self):
+        for attr in self.__attrs__:
+            value = getattr(self, attr)
+            if value:
+                yield attr, safe_string(value)
+
+
+    def to_tree(self, tagname=None, namespace=None, idx=None):
+        parent = Element("fill")
+        el = super().to_tree()
+        parent.append(el)
+        return parent