updates

Backend/venv/lib/python3.12/site-packages/PIL/PcfFontFile.py

@@ -15,6 +15,7 @@
 #
 # See the README file for information on usage and redistribution.
 #
+from __future__ import annotations
 
 import io
 
@@ -25,6 +26,11 @@ from ._binary import i16le as l16
 from ._binary import i32be as b32
 from ._binary import i32le as l32
 
+TYPE_CHECKING = False
+if TYPE_CHECKING:
+    from collections.abc import Callable
+    from typing import BinaryIO
+
 # --------------------------------------------------------------------
 # declarations
 
@@ -40,7 +46,7 @@ PCF_SWIDTHS = 1 << 6
 PCF_GLYPH_NAMES = 1 << 7
 PCF_BDF_ACCELERATORS = 1 << 8
 
-BYTES_PER_ROW = [
+BYTES_PER_ROW: list[Callable[[int], int]] = [
     lambda bits: ((bits + 7) >> 3),
     lambda bits: ((bits + 15) >> 3) & ~1,
     lambda bits: ((bits + 31) >> 3) & ~3,
@@ -48,7 +54,7 @@ BYTES_PER_ROW = [
 ]
 
 
-def sz(s, o):
+def sz(s: bytes, o: int) -> bytes:
     return s[o : s.index(b"\0", o)]
 
 
@@ -57,7 +63,7 @@ class PcfFontFile(FontFile.FontFile):
 
     name = "name"
 
-    def __init__(self, fp, charset_encoding="iso8859-1"):
+    def __init__(self, fp: BinaryIO, charset_encoding: str = "iso8859-1"):
         self.charset_encoding = charset_encoding
 
         magic = l32(fp.read(4))
@@ -103,7 +109,9 @@ class PcfFontFile(FontFile.FontFile):
                     bitmaps[ix],
                 )
 
-    def _getformat(self, tag):
+    def _getformat(
+        self, tag: int
+    ) -> tuple[BinaryIO, int, Callable[[bytes], int], Callable[[bytes], int]]:
         format, size, offset = self.toc[tag]
 
         fp = self.fp
@@ -118,7 +126,7 @@ class PcfFontFile(FontFile.FontFile):
 
         return fp, format, i16, i32
 
-    def _load_properties(self):
+    def _load_properties(self) -> dict[bytes, bytes | int]:
         #
         # font properties
 
@@ -129,27 +137,24 @@ class PcfFontFile(FontFile.FontFile):
         nprops = i32(fp.read(4))
 
         # read property description
-        p = []
-        for i in range(nprops):
-            p.append((i32(fp.read(4)), i8(fp.read(1)), i32(fp.read(4))))
+        p = [(i32(fp.read(4)), i8(fp.read(1)), i32(fp.read(4))) for _ in range(nprops)]
+
         if nprops & 3:
             fp.seek(4 - (nprops & 3), io.SEEK_CUR)  # pad
 
         data = fp.read(i32(fp.read(4)))
 
         for k, s, v in p:
-            k = sz(data, k)
-            if s:
-                v = sz(data, v)
-            properties[k] = v
+            property_value: bytes | int = sz(data, v) if s else v
+            properties[sz(data, k)] = property_value
 
         return properties
 
-    def _load_metrics(self):
+    def _load_metrics(self) -> list[tuple[int, int, int, int, int, int, int, int]]:
         #
         # font metrics
 
-        metrics = []
+        metrics: list[tuple[int, int, int, int, int, int, int, int]] = []
 
         fp, format, i16, i32 = self._getformat(PCF_METRICS)
 
@@ -182,12 +187,12 @@ class PcfFontFile(FontFile.FontFile):
 
         return metrics
 
-    def _load_bitmaps(self, metrics):
+    def _load_bitmaps(
+        self, metrics: list[tuple[int, int, int, int, int, int, int, int]]
+    ) -> list[Image.Image]:
         #
         # bitmap data
 
-        bitmaps = []
-
         fp, format, i16, i32 = self._getformat(PCF_BITMAPS)
 
         nbitmaps = i32(fp.read(4))
@@ -196,13 +201,9 @@ class PcfFontFile(FontFile.FontFile):
             msg = "Wrong number of bitmaps"
             raise OSError(msg)
 
-        offsets = []
-        for i in range(nbitmaps):
-            offsets.append(i32(fp.read(4)))
+        offsets = [i32(fp.read(4)) for _ in range(nbitmaps)]
 
-        bitmap_sizes = []
-        for i in range(4):
-            bitmap_sizes.append(i32(fp.read(4)))
+        bitmap_sizes = [i32(fp.read(4)) for _ in range(4)]
 
         # byteorder = format & 4  # non-zero => MSB
         bitorder = format & 8  # non-zero => MSB
@@ -218,6 +219,7 @@ class PcfFontFile(FontFile.FontFile):
         if bitorder:
             mode = "1"
 
+        bitmaps = []
         for i in range(nbitmaps):
             xsize, ysize = metrics[i][:2]
             b, e = offsets[i : i + 2]
@@ -227,7 +229,7 @@ class PcfFontFile(FontFile.FontFile):
 
         return bitmaps
 
-    def _load_encoding(self):
+    def _load_encoding(self) -> list[int | None]:
         fp, format, i16, i32 = self._getformat(PCF_BDF_ENCODINGS)
 
         first_col, last_col = i16(fp.read(2)), i16(fp.read(2))
@@ -238,7 +240,7 @@ class PcfFontFile(FontFile.FontFile):
         nencoding = (last_col - first_col + 1) * (last_row - first_row + 1)
 
         # map character code to bitmap index
-        encoding = [None] * min(256, nencoding)
+        encoding: list[int | None] = [None] * min(256, nencoding)
 
         encoding_offsets = [i16(fp.read(2)) for _ in range(nencoding)]