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# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import re
from typing import Dict, List, Optional, Union, cast
from PyQt5.QtCore import Qt, pyqtProperty
from UM.Qt.ListModel import ListModel
class AuthorsModel(ListModel):
"""Model that holds cura packages.
By setting the filter property the instances held by this model can be changed.
"""
def __init__(self, parent = None) -> None:
super().__init__(parent)
self._metadata = None # type: Optional[List[Dict[str, Union[str, List[str], int]]]]
self.addRoleName(Qt.UserRole + 1, "id")
self.addRoleName(Qt.UserRole + 2, "name")
self.addRoleName(Qt.UserRole + 3, "email")
self.addRoleName(Qt.UserRole + 4, "website")
self.addRoleName(Qt.UserRole + 5, "package_count")
self.addRoleName(Qt.UserRole + 6, "package_types")
self.addRoleName(Qt.UserRole + 7, "icon_url")
self.addRoleName(Qt.UserRole + 8, "description")
# List of filters for queries. The result is the union of the each list of results.
self._filter = {} # type: Dict[str, str]
def setMetadata(self, data: List[Dict[str, Union[str, List[str], int]]]):
if self._metadata != data:
self._metadata = data
self._update()
def _update(self) -> None:
items = [] # type: List[Dict[str, Union[str, List[str], int, None]]]
if not self._metadata:
self.setItems(items)
return
for author in self._metadata:
items.append({
"id": author.get("author_id"),
"name": author.get("display_name"),
"email": author.get("email"),
"website": author.get("website"),
"package_count": author.get("package_count", 0),
"package_types": author.get("package_types", []),
"icon_url": author.get("icon_url"),
"description": "Material and quality profiles from {author_name}".format(author_name = author.get("display_name", ""))
})
# Filter on all the key-word arguments.
for key, value in self._filter.items():
if key == "package_types":
key_filter = lambda item, value = value: value in item["package_types"] # type: ignore
elif "*" in value:
key_filter = lambda item, key = key, value = value: self._matchRegExp(item, key, value) # type: ignore
else:
key_filter = lambda item, key = key, value = value: self._matchString(item, key, value) # type: ignore
items = filter(key_filter, items) # type: ignore
# Execute all filters.
filtered_items = list(items)
filtered_items.sort(key = lambda k: cast(str, k["name"]))
self.setItems(filtered_items)
def setFilter(self, filter_dict: Dict[str, str]) -> None:
"""Set the filter of this model based on a string.
:param filter_dict: Dictionary to do the filtering by.
"""
if filter_dict != self._filter:
self._filter = filter_dict
self._update()
@pyqtProperty("QVariantMap", fset = setFilter, constant = True)
def filter(self) -> Dict[str, str]:
return self._filter
# Check to see if a container matches with a regular expression
def _matchRegExp(self, metadata, property_name, value):
if property_name not in metadata:
return False
value = re.escape(value) #Escape for regex patterns.
value = "^" + value.replace("\\*", ".*") + "$" #Instead of (now escaped) asterisks, match on any string. Also add anchors for a complete match.
if self._ignore_case:
value_pattern = re.compile(value, re.IGNORECASE)
else:
value_pattern = re.compile(value)
return value_pattern.match(str(metadata[property_name]))
# Check to see if a container matches with a string
def _matchString(self, metadata, property_name, value):
if property_name not in metadata:
return False
return value.lower() == str(metadata[property_name]).lower()
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