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Provide a protocol for Fonts

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Jeff Epler 2021-12-21 15:33:59 -06:00
parent 7f189b3e30
commit 316c25303d
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1 changed files with 19 additions and 0 deletions
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shared-bindings/fontio/BuiltinFont.c
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@ -36,6 +36,25 @@
#include "shared-bindings/util.h"
#include "supervisor/shared/translate.h"
//| from typing_extensions import Protocol # for compat with python < 3.8
//|
//| class FontProtocol(Protocol):
//| """A protocol shared by `BuiltinFont` and classes in ``adafruit_bitmap_font``"""
//| def get_bounding_box(self) -> Union[Tuple[int, int], Tuple[int, int, int, int]]:
//| """Retrieve the maximum bounding box of any glyph in the font.
//|
//| The four element version is ``(width, height, x_offset, y_offset)``.
//| The two element version is ``(width, height)``, in which
//| ``x_offset`` and ``y_offset`` are assumed to be zero."""
//| pass
//|
//| def get_glyph(self, codepoint: int) -> Optional[Glyph]:
//| """Retrieve the Glyph for a given code point
//|
//| If the code point is not present in the font, `None` is returned."""
//| pass
//|
//| class BuiltinFont:
//| """A font built into CircuitPython"""
//|