add circuitpython code

1 files changed, 16 insertions, 0 deletions

diff --git a/circuitpython/tools/bitmap_font/adafruit_bitmap_font/glyph_cache.py b/circuitpython/tools/bitmap_font/adafruit_bitmap_font/glyph_cache.py
new file mode 100644
index 0000000..383596b
--- /dev/null
+++ b/circuitpython/tools/bitmap_font/adafruit_bitmap_font/glyph_cache.py
@@ -0,0 +1,16 @@
+import gc
+
+class GlyphCache:
+    def __init__(self):
+        self._glyphs = {}
+
+    def get_glyph(self, code_point):
+        if code_point in self._glyphs:
+            return self._glyphs[code_point]
+
+        s = set()
+        s.add(code_point)
+        self._glyphs[code_point] = None
+        self.load_glyphs(s)
+        gc.collect()
+        return self._glyphs[code_point]