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Direktori : /proc/thread-self/root/opt/cloudlinux/venv/lib64/python3.11/site-packages/svgwrite/ |
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#!/usr/bin/env python # coding:utf-8 # Author: mozman # Purpose: svg util functions and classes # Created: 08.09.2010 # Copyright (C) 2010, Manfred Moitzi # License: MIT License """ .. autofunction:: rgb .. autofunction:: iterflatlist .. autofunction:: strlist .. autofunction:: get_unit .. autofunction:: split_coordinate .. autofunction:: split_angle .. autofunction:: rect_top_left_corner .. autofunction:: pretty_xml """ import base64 from pathlib import Path from svgwrite.data import pattern def is_string(value): return isinstance(value, str) def rgb(r=0, g=0, b=0, mode='RGB'): """ Convert **r**, **g**, **b** values to a `string`. :param r: red part :param g: green part :param b: blue part :param string mode: ``'RGB | %'`` :rtype: string ========= ============================================================= mode Description ========= ============================================================= ``'RGB'`` returns a rgb-string format: ``'rgb(r, g, b)'`` ``'%'`` returns percent-values as rgb-string format: ``'rgb(r%, g%, b%)'`` ========= ============================================================= """ def percent(value): value = float(value) if value < 0: value = 0 if value > 100: value = 100 return value if mode.upper() == 'RGB': return "rgb(%d,%d,%d)" % (int(r) & 255, int(g) & 255, int(b) & 255) elif mode == "%": # see http://www.w3.org/TR/SVG11/types.html#DataTypeColor # percentage is an 'number' value return "rgb(%d%%,%d%%,%d%%)" % (percent(r), percent(g), percent(b)) else: raise ValueError("Invalid mode '%s'" % mode) def iterflatlist(values): """ Flatten nested *values*, returns an `iterator`. """ for element in values: if hasattr(element, "__iter__") and not is_string(element): for item in iterflatlist(element): yield item else: yield element def strlist(values, seperator=","): """ Concatenate **values** with **sepertator**, `None` values will be excluded. :param values: `iterable` object :returns: `string` """ if is_string(values): return values else: return seperator.join([str(value) for value in iterflatlist(values) if value is not None]) def get_unit(coordinate): """ Get the `unit` identifier of **coordinate**, if **coordinate** has a valid `unit` identifier appended, else returns `None`. """ if isinstance(coordinate, (int, float)): return None result = pattern.coordinate.match(coordinate) if result: return result.group(3) else: raise ValueError("Invalid format: '%s'" % coordinate) def split_coordinate(coordinate): """ Split coordinate into `<number>` and 'unit` identifier. :returns: <2-tuple> (number, unit-identifier) or (number, None) if no unit-identifier is present or coordinate is an int or float. """ if isinstance(coordinate, (int, float)): return (float(coordinate), None) result = pattern.coordinate.match(coordinate) if result: return (float(result.group(1)), result.group(3)) else: raise ValueError("Invalid format: '%s'" % coordinate) def split_angle(angle): """ Split angle into `<number>` and `<angle>` identifier. :returns: <2-tuple> (number, angle-identifier) or (number, None) if no angle-identifier is present or angle is an int or float. """ if isinstance(angle, (int, float)): return (float(angle), None) result = pattern.angle.match(angle) if result: return (float(result.group(1)), result.group(3)) else: raise ValueError("Invalid format: '%s'" % angle) def rect_top_left_corner(insert, size, pos='top-left'): """ Calculate top-left corner of a rectangle. **insert** and **size** must have the same units. :param 2-tuple insert: insert point :param 2-tuple size: (width, height) :param string pos: insert position ``'vert-horiz'`` :return: ``'top-left'`` corner of the rect :rtype: 2-tuple ========== ============================== pos valid values ========== ============================== **vert** ``'top | middle | bottom'`` **horiz** ``'left'|'center'|'right'`` ========== ============================== """ vert, horiz = pos.lower().split('-') x, xunit = split_coordinate(insert[0]) y, yunit = split_coordinate(insert[1]) width, wunit = split_coordinate(size[0]) height, hunit = split_coordinate(size[1]) if xunit != wunit: raise ValueError("x-coordinate and width has to have the same unit") if yunit != hunit: raise ValueError("y-coordinate and height has to have the same unit") if horiz == 'center': x = x - width / 2. elif horiz == 'right': x = x - width elif horiz != 'left': raise ValueError("Invalid horizontal position: '%s'" % horiz) if vert == 'middle': y = y - height / 2. elif vert == 'bottom': y = y - height elif vert != 'top': raise ValueError("Invalid vertical position: '%s'" % vert) if xunit: x = "%s%s" % (x, xunit) if yunit: y = "%s%s" % (y, yunit) return x, y class AutoID(object): _nextid = 1 def __init__(self, value=None): self._set_value(value) @classmethod def _set_value(cls, value=None): if value is not None: cls._nextid = value @classmethod def next_id(cls, value=None): cls._set_value(value) retval = "id%d" % cls._nextid cls._nextid += 1 return retval def pretty_xml(xml_string, indent=2): """ Create human readable XML string. :param xml_string: input xml string without line breaks and indentation :indent int: how much to indent, by default 2 spaces :return: xml_string with linebreaks and indentation """ import xml.dom.minidom as minidom # check for empty string, len check avoids unnecessary string manipulation with large XML strings if len(xml_string) < 20 and xml_string.strip() == "": return "" xml_tree = minidom.parseString(xml_string) lines = xml_tree.toprettyxml(indent=' ' * indent).split('\n') # remove 1. line = xml declaration return '\n'.join(lines[1:]) FONT_MIMETYPES = { 'ttf': "application/x-font-ttf", 'otf': "application/x-font-opentype", 'woff': "application/font-woff", 'woff2': "application/font-woff2", 'eot': "application/vnd.ms-fontobject", 'sfnt': "application/font-sfnt", } def font_mimetype(name): return FONT_MIMETYPES[Path(name.lower()).suffix[1:]] def base64_data(data, mimetype): data = base64.b64encode(data).decode() return "data:{mimetype};charset=utf-8;base64,{data}".format(mimetype=mimetype, data=data) def find_first_url(text): import re result = re.findall(r"url\((.*?)\)", text) if result: return result[0] else: return None