Veronica Berglyd Olsen
298 lines
8.1 KiB
Python
298 lines
8.1 KiB
Python
"""
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novelWriter – Project Item Status Class
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=======================================
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Data class for the status/importance settings of a project item
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File History:
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Created: 2019-05-19 [0.1.3]
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Rewritten: 2022-04-05 [2.0b1]
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This file is a part of novelWriter
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Copyright 2018–2023, Veronica Berglyd Olsen
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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import random
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import logging
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from PyQt5.QtGui import QIcon, QPainter, QPainterPath, QPixmap, QColor
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from PyQt5.QtCore import QRectF, Qt
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from novelwriter import CONFIG
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from novelwriter.common import minmax, simplified
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logger = logging.getLogger(__name__)
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class NWStatus:
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STATUS = 1
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IMPORT = 2
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def __init__(self, type):
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self._type = type
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self._store = {}
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self._default = None
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self._iPX = CONFIG.pxInt(24)
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pA = CONFIG.pxInt(2)
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pB = CONFIG.pxInt(20)
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pR = float(CONFIG.pxInt(4))
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self._iconPath = QPainterPath()
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self._iconPath.addRoundedRect(QRectF(pA, pA, pB, pB), pR, pR)
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self._defaultIcon = self._createIcon(100, 100, 100)
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if self._type == self.STATUS:
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self._prefix = "s"
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elif self._type == self.IMPORT:
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self._prefix = "i"
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else:
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raise Exception("This is a bug!")
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return
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def write(self, key, name, col, count=None):
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"""Add or update a status entry. If the key is invalid, a new
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key is generated.
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"""
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if not self._isKey(key):
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key = self._newKey()
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if not isinstance(col, tuple):
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col = (100, 100, 100)
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if len(col) != 3:
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col = (100, 100, 100)
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cR = minmax(col[0], 0, 255)
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cG = minmax(col[1], 0, 255)
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cB = minmax(col[2], 0, 255)
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name = simplified(name)
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if count is None:
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count = self._store.get(key, {}).get("count", 0)
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self._store[key] = {
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"name": name,
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"icon": self._createIcon(cR, cG, cB),
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"cols": (cR, cG, cB),
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"count": count,
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}
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if self._default is None:
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self._default = key
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return key
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def remove(self, key):
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"""Remove an entry in the list, but not if the count is larger
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than 0.
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"""
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if key not in self._store:
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return False
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if self._store[key]["count"] > 0:
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return False
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del self._store[key]
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keys = list(self._store.keys())
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if key == self._default:
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if len(keys) > 0:
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self._default = keys[0]
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else:
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self._default = None
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return True
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def check(self, value):
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"""Check the key against the stored status names.
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"""
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if self._isKey(value) and value in self._store:
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return value
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elif self._default is not None:
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return self._default
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else:
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return ""
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def name(self, key):
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"""Return the name associated with a given key.
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"""
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if key in self._store:
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return self._store[key]["name"]
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elif self._default is not None:
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return self._store[self._default]["name"]
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else:
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return ""
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def cols(self, key):
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"""Return the colours associated with a given key.
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"""
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if key in self._store:
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return self._store[key]["cols"]
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elif self._default is not None:
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return self._store[self._default]["cols"]
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else:
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return (100, 100, 100)
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def count(self, key):
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"""Return the count associated with a given key.
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"""
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if key in self._store:
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return self._store[key]["count"]
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elif self._default is not None:
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return self._store[self._default]["count"]
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else:
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return 0
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def icon(self, key):
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"""Return the icon associated with a given key.
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"""
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if key in self._store:
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return self._store[key]["icon"]
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elif self._default is not None:
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return self._store[self._default]["icon"]
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else:
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return self._defaultIcon
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def reorder(self, order):
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"""Reorder the items according to list.
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"""
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if len(order) != len(self._store):
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logger.error("Length mismatch between new and old order")
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return False
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if order == list(self._store.keys()):
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return False
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store = {}
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for key in order:
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if key in self._store:
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store[key] = self._store[key]
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else:
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logger.error("Unknown key '%s' in order", key)
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return False
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self._store = store
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return True
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def resetCounts(self):
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"""Clear the counts of references to the status entries.
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"""
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for key in self._store:
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self._store[key]["count"] = 0
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return
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def increment(self, key):
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"""Increment the counter for a given entry.
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"""
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if key in self._store:
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self._store[key]["count"] += 1
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return
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def pack(self):
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"""Pack the status entries into a dictionary.
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"""
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for key, data in self._store.items():
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yield (data["name"], {
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"key": key,
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"count": str(data["count"]),
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"red": str(data["cols"][0]),
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"green": str(data["cols"][1]),
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"blue": str(data["cols"][2]),
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})
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return
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def unpack(self, data):
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"""Unpack a data dictionary and set the class values.
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"""
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self._store = {}
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self._default = None
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for key, entry in data.items():
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label = entry.get("label", "")
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colour = entry.get("colour", (100, 100, 100))
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count = entry.get("count", 0)
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self.write(key, label, colour, count)
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return True
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##
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# Internal Functions
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##
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def _newKey(self):
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"""Generate a new key for a status flag. This method is
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recursive, but should only fail if there is an issue with the
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random number generator or the user has added a lot of status
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flags. The Python recursion limit is given the job to handle
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the extreme case and will cause an app crash.
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"""
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key = f"{self._prefix}{random.getrandbits(24):06x}"
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if key in self._store:
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key = self._newKey()
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return key
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def _isKey(self, value):
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"""Check if a value is a key or not.
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"""
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if not isinstance(value, str):
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return False
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if len(value) != 7:
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return False
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if value[0] != self._prefix:
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return False
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for c in value[1:]:
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if c not in "0123456789abcdef":
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return False
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return True
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def _createIcon(self, red, green, blue):
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"""Generate an icon for a status label.
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"""
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pixmap = QPixmap(self._iPX, self._iPX)
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pixmap.fill(Qt.transparent)
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painter = QPainter(pixmap)
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painter.setRenderHint(QPainter.Antialiasing)
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painter.fillPath(self._iconPath, QColor(red, green, blue))
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painter.end()
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return QIcon(pixmap)
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##
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# Iterator Bits
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##
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def __len__(self):
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return len(self._store)
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def __getitem__(self, key):
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return self._store[key]
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def __iter__(self):
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return iter(self._store)
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def keys(self):
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return self._store.keys()
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def items(self):
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return self._store.items()
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def values(self):
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return self._store.values()
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# END Class NWStatus
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