56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
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"""
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Blender user interface icon handling.
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"""
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import os.path
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from typing import Optional
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import bpy.utils.previews
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import lnx
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if lnx.is_reload(__name__):
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# _unload_icons is not available in the module scope yet
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def __unload():
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_unload_icons()
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# Refresh icons after reload
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__unload()
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else:
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lnx.enable_reload(__name__)
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__all__ = ["get_id"]
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_ICONS_DICT: Optional[bpy.utils.previews.ImagePreviewCollection] = None
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"""Dictionary of all loaded icons, or `None` if not loaded"""
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_ICONS_DIR = os.path.join(os.path.dirname(__file__), "custom_icons")
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"""Directory of the icon files"""
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def _load_icons():
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"""(Re)loads all icons."""
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global _ICONS_DICT
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_unload_icons()
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_ICONS_DICT = bpy.utils.previews.new()
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_ICONS_DICT.load("bundle", os.path.join(_ICONS_DIR, "bundle.png"), 'IMAGE', force_reload=True)
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_ICONS_DICT.load("haxe", os.path.join(_ICONS_DIR, "haxe.png"), 'IMAGE', force_reload=True)
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_ICONS_DICT.load("wasm", os.path.join(_ICONS_DIR, "wasm.png"), 'IMAGE', force_reload=True)
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def _unload_icons():
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"""Unloads all icons."""
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global _ICONS_DICT
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if _ICONS_DICT is not None:
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bpy.utils.previews.remove(_ICONS_DICT)
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_ICONS_DICT = None
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def get_id(identifier: str) -> int:
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"""Returns the icon ID from the given identifier."""
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if _ICONS_DICT is None:
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_load_icons()
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return _ICONS_DICT[identifier].icon_id
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