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.venv/lib/python3.12/site-packages/ezdxf/fonts/glyphs.py

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+#  Copyright (c) 2023, Manfred Moitzi
+#  License: MIT License
+from __future__ import annotations
+from typing_extensions import TypeAlias
+import abc
+
+from ezdxf.npshapes import NumpyPath2d
+from .font_measurements import FontMeasurements
+
+GlyphPath: TypeAlias = NumpyPath2d
+
+
+class Glyphs(abc.ABC):
+    font_measurements: FontMeasurements  # of the raw font
+    space_width: float  # word spacing of the raw font
+
+    @abc.abstractmethod
+    def get_scaling_factor(self, cap_height: float) -> float:
+        ...
+
+    @abc.abstractmethod
+    def get_text_length(
+        self, text: str, cap_height: float, width_factor: float = 1.0
+    ) -> float:
+        ...
+
+    def get_text_path(
+        self, text: str, cap_height: float, width_factor: float = 1.0
+    ) -> GlyphPath:
+        glyph_paths = self.get_text_glyph_paths(text, cap_height, width_factor)
+        if len(glyph_paths) == 0:
+            return GlyphPath(None)
+        return NumpyPath2d.concatenate(glyph_paths)
+
+    @abc.abstractmethod
+    def get_text_glyph_paths(
+        self, text: str, cap_height: float, width_factor: float = 1.0
+    ) -> list[GlyphPath]:
+        ...