add circuitpython code

1 files changed, 44 insertions, 0 deletions

diff --git a/circuitpython/tools/bitmap_font/adafruit_bitmap_font/bitmap_font.py b/circuitpython/tools/bitmap_font/adafruit_bitmap_font/bitmap_font.py
new file mode 100644
index 0000000..c536e98
--- /dev/null
+++ b/circuitpython/tools/bitmap_font/adafruit_bitmap_font/bitmap_font.py
@@ -0,0 +1,44 @@
+import sys
+
+def load_font(filename, bitmap=None):
+    if not bitmap:
+        import displayio
+        bitmap = displayio.Bitmap
+    f = open(filename, "rb")
+    first_four = f.read(4)
+    #print(first_four)
+    if filename.endswith("bdf") and first_four == b"STAR":
+        from . import bdf
+        return bdf.BDF(f, bitmap)
+    elif filename.endswith("pcf") and first_four == b"\x01fcp":
+        import pcf
+        return pcf.PCF(f)
+    elif filename.endswith("ttf") and first_four == b"\x00\x01\x00\x00":
+        import ttf
+        return ttf.TTF(f)
+
+
+
+if __name__ == "__main__":
+    f = load_font(sys.argv[1])
+    # print(f.characters)
+    for c in "Adafruit CircuitPython":
+        o = ord(c)
+        if o not in f.characters:
+            continue
+        glyph = f.characters[o]
+        print(glyph)
+    for i in range(10):
+        for c in "Adafruit CircuitPython":
+            o = ord(c)
+            if o not in f.characters:
+                continue
+            glyph = f.characters[o]
+            # print(glyph)
+            shifted_i = i + (glyph["bounds"][1] - 8) + glyph["bounds"][3]
+            if 0 <= shifted_i < len(glyph["bitmap"]):
+                pixels = glyph["bitmap"][shifted_i]
+            else:
+                pixels = ""
+            print(pixels + " " * (glyph["shift"][0] - len(pixels)), end="")
+        print()