smillmorel
612936a00b
Some checks failed
CI / lint (push) Has been cancelled
CI / test (macos-latest, 3.10) (push) Has been cancelled
CI / test (macos-latest, 3.11) (push) Has been cancelled
CI / test (macos-latest, 3.12) (push) Has been cancelled
CI / test (ubuntu-latest, 3.10) (push) Has been cancelled
CI / test (ubuntu-latest, 3.11) (push) Has been cancelled
CI / test (ubuntu-latest, 3.12) (push) Has been cancelled
CI / test (windows-latest, 3.10) (push) Has been cancelled
CI / test (windows-latest, 3.11) (push) Has been cancelled
CI / test (windows-latest, 3.12) (push) Has been cancelled
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
"""Project-level settings commands (display units, ...)."""
|
|
|
|
from __future__ import annotations
|
|
|
|
from typing import TYPE_CHECKING
|
|
|
|
from otko.commands.base import ProjectCommand
|
|
from otko.core import UnitSystem
|
|
|
|
if TYPE_CHECKING:
|
|
from otko.viewmodels import ProjectViewModel
|
|
|
|
|
|
class SetUnitsCommand(ProjectCommand):
|
|
"""Change the project's display unit system (undoable).
|
|
|
|
Units are display-only labels — the solver never converts values —
|
|
but open views (status bar, plot axes, property labels) read them,
|
|
so both redo and undo notify (dirty + modelMutated) to refresh.
|
|
"""
|
|
|
|
def __init__(self, vm: "ProjectViewModel", units: UnitSystem) -> None:
|
|
super().__init__(vm, f"Set display units to {units.value}")
|
|
self._units = units
|
|
self._previous: UnitSystem | None = None
|
|
|
|
def redo(self) -> None:
|
|
if self._previous is None:
|
|
self._previous = self.project.meta.units
|
|
self.project.meta.units = self._units
|
|
self._notify()
|
|
|
|
def undo(self) -> None:
|
|
if self._previous is not None:
|
|
self.project.meta.units = self._previous
|
|
self._notify()
|