52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
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# SPDX-FileCopyrightText: © 2022-2023 Wojciech Trybus <wojtryb@gmail.com>
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# SPDX-License-Identifier: GPL-3.0-or-later
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from dataclasses import dataclass
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from typing import Protocol, Any
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from .document import Document
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class KritaCanvas(Protocol):
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"""Krita `Canvas` object API."""
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def rotation(self) -> float: ...
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def setRotation(self, angle_deg: float) -> None: ...
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def zoomLevel(self) -> float: ...
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def setZoomLevel(self, zoom: float) -> None: ...
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def view(self) -> Any: ...
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@dataclass
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class Canvas:
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"""Wraps krita `Canvas` for typing, docs and PEP8 compatibility."""
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canvas: KritaCanvas
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def __post_init__(self):
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self._zoom_scale = Document(self.canvas.view().document()).dpi/7200
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@property
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def rotation(self) -> float:
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"""Settable property with rotation in degrees between `0` and `360`."""
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return self.canvas.rotation()
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@rotation.setter
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def rotation(self, angle_deg: float) -> None:
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"""Set canvas rotation with float representing angle in degrees."""
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self.canvas.setRotation(angle_deg % 360)
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@property
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def zoom(self) -> float:
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"""
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Settable property with zoom level expressed in %.
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Add a workaround for zoom detected by krita affected by document dpi.
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"""
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return self.canvas.zoomLevel() / self._zoom_scale
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@zoom.setter
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def zoom(self, zoom: float) -> None:
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"""Set zoom of canvas by providing zoom level expressed in %."""
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self.canvas.setZoomLevel(zoom*0.01)
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