146 lines
4.6 KiB
Python
146 lines
4.6 KiB
Python
import math
|
|
from dataclasses import dataclass
|
|
from typing import Any, Optional
|
|
|
|
import chevron
|
|
import papis.config
|
|
from papis.document import Document
|
|
|
|
TEXT_SIMILARITY_MINIMUM = 0.75
|
|
COLOR_SIMILARITY_MINIMUM = 0.833
|
|
|
|
COLORS: dict[str, tuple[float, float, float]] = {
|
|
"blue": (0, 0, 1),
|
|
"green": (0, 1, 0),
|
|
"red": (1, 0, 0),
|
|
"cyan": (0, 1, 1),
|
|
"yellow": (1, 1, 0),
|
|
"magenta": (1, 0, 1),
|
|
"purple": (0.5, 0, 0.5),
|
|
"pink": (1, 0.75, 0.8),
|
|
"orange": (1, 0.65, 0),
|
|
}
|
|
|
|
|
|
@dataclass
|
|
class Annotation:
|
|
"""A PDF annotation object.
|
|
|
|
Contains all information necessary for the annotation itself, content and metadata.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
file: str,
|
|
color: tuple[float, float, float] = (0.0, 0.0, 0.0),
|
|
content: str = "",
|
|
note: str = "",
|
|
page: int = 0,
|
|
tag: str = "",
|
|
type: str = "Highlight",
|
|
minimum_similarity_color: float = 1.0,
|
|
) -> None:
|
|
self.minimum_similarity_color = minimum_similarity_color
|
|
self.file = file
|
|
self._color = color
|
|
self.content = content
|
|
self.note = note
|
|
self.page = page
|
|
self.tag = tag or self._tag_from_colorname(self.colorname or "")
|
|
self.type = type
|
|
|
|
def format(self, formatting: str, doc: Document = Document()):
|
|
"""Return a formatted string of the annotation.
|
|
|
|
Given a provided formatting pattern, this method returns the annotation
|
|
formatted with the correct marker replacements and removals, ready
|
|
for display or writing.
|
|
"""
|
|
data = {
|
|
"file": self.file,
|
|
"quote": self.content,
|
|
"note": self.note,
|
|
"page": self.page,
|
|
"tag": self.tag,
|
|
"type": self.type,
|
|
"doc": doc,
|
|
}
|
|
return chevron.render(formatting, data)
|
|
|
|
@property
|
|
def color(self):
|
|
return self._color
|
|
|
|
@color.setter
|
|
def color(self, value: tuple[float, float, float]):
|
|
self._color = value
|
|
self.tag = self._tag_from_colorname(self.colorname or "")
|
|
|
|
@property
|
|
def colorname(self):
|
|
"""Return the stringified version of the annotation color.
|
|
|
|
Finds the closest named color to the annotation and returns it,
|
|
using euclidian distance between the two color vectors.
|
|
"""
|
|
annot_colors = self.color or (0.0, 0.0, 0.0)
|
|
nearest = None
|
|
minimum_similarity = (
|
|
papis.config.getfloat("minimum_similarity_color", "plugins.extract") or 1.0
|
|
)
|
|
minimum_similarity = self.minimum_similarity_color
|
|
for name, values in COLORS.items():
|
|
similarity_ratio = self._color_similarity_ratio(values, annot_colors)
|
|
if similarity_ratio >= minimum_similarity:
|
|
minimum_similarity = similarity_ratio
|
|
nearest = name
|
|
return nearest
|
|
|
|
def _color_similarity_ratio(
|
|
self,
|
|
color_one: tuple[float, float, float],
|
|
color_two: tuple[float, float, float],
|
|
) -> float:
|
|
"""Return the similarity of two colors between 0 and 1.
|
|
|
|
Takes two rgb color tuples made of floats between 0 and 1,
|
|
e.g. (1, 0.65, 0) for orange, and returns the similarity
|
|
between them, with 1 being the same color and 0 being the
|
|
difference between full black and full white, as a float.
|
|
"""
|
|
return 1 - (abs(math.dist([*color_one], [*color_two])) / 3)
|
|
|
|
def _tag_from_colorname(self, colorname: str) -> str:
|
|
color_mapping: dict[str, str] = self._getdict("tags", "plugins.extract")
|
|
if not color_mapping:
|
|
return ""
|
|
|
|
return color_mapping.get(colorname, "")
|
|
|
|
# mimics the functions in papis.config.{getlist,getint,getfloat} etc.
|
|
def _getdict(self, key: str, section: Optional[str] = None) -> dict[str, str]:
|
|
"""Dict getter
|
|
|
|
:returns: A python dict
|
|
:raises SyntaxError: Whenever the parsed syntax is either not a valid
|
|
python object or a valid python dict.
|
|
"""
|
|
rawvalue: Any = papis.config.general_get(key, section=section)
|
|
if isinstance(rawvalue, dict):
|
|
return rawvalue
|
|
try:
|
|
rawvalue = eval(rawvalue)
|
|
except Exception:
|
|
raise SyntaxError(
|
|
"The key '{}' must be a valid Python object: {}".format(key, rawvalue)
|
|
)
|
|
else:
|
|
if not isinstance(rawvalue, dict):
|
|
raise SyntaxError(
|
|
"The key '{}' must be a valid Python dict. Got: {} (type {!r})".format(
|
|
key, rawvalue, type(rawvalue).__name__
|
|
)
|
|
)
|
|
|
|
return rawvalue
|