mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 17:36:18 +03:00
Added type hints
This commit is contained in:
Andrew Murray
parent
6944e9e183
commit
01529d8b09
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@ -57,6 +57,9 @@ class TestImageWinDib:
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# Assert
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assert dib.size == (128, 128)
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with pytest.raises(ValueError):
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ImageWin.Dib(mode)
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def test_dib_paste(self) -> None:
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# Arrange
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im = hopper()
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@ -65,7 +65,7 @@ def has_ghostscript() -> bool:
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return gs_binary is not False
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def Ghostscript(tile, size, fp, scale=1, transparency=False):
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def Ghostscript(tile, size, fp, scale=1, transparency: bool = False) -> Image.Image:
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"""Render an image using Ghostscript"""
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global gs_binary
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if not has_ghostscript():
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@ -25,7 +25,7 @@ from __future__ import annotations
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import warnings
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from io import BytesIO
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from math import ceil, log
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from typing import IO
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from typing import IO, NamedTuple
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from . import BmpImagePlugin, Image, ImageFile, PngImagePlugin
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from ._binary import i16le as i16
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@ -119,8 +119,22 @@ def _accept(prefix: bytes) -> bool:
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return prefix[:4] == _MAGIC
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class IconHeader(NamedTuple):
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width: int
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height: int
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nb_color: int
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reserved: int
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planes: int
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bpp: int
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size: int
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offset: int
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dim: tuple[int, int]
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square: int
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color_depth: int
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class IcoFile:
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def __init__(self, buf) -> None:
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def __init__(self, buf: IO[bytes]) -> None:
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"""
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Parse image from file-like object containing ico file data
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"""
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@ -141,51 +155,44 @@ class IcoFile:
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for i in range(self.nb_items):
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s = buf.read(16)
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icon_header = {
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"width": s[0],
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"height": s[1],
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"nb_color": s[2], # No. of colors in image (0 if >=8bpp)
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"reserved": s[3],
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"planes": i16(s, 4),
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"bpp": i16(s, 6),
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"size": i32(s, 8),
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"offset": i32(s, 12),
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}
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# See Wikipedia
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for j in ("width", "height"):
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if not icon_header[j]:
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icon_header[j] = 256
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width = s[0] or 256
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height = s[1] or 256
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# See Wikipedia notes about color depth.
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# We need this just to differ images with equal sizes
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icon_header["color_depth"] = (
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icon_header["bpp"]
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or (
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icon_header["nb_color"] != 0
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and ceil(log(icon_header["nb_color"], 2))
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)
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or 256
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# No. of colors in image (0 if >=8bpp)
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nb_color = s[2]
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bpp = i16(s, 6)
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icon_header = IconHeader(
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width=width,
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height=height,
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nb_color=nb_color,
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reserved=s[3],
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planes=i16(s, 4),
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bpp=i16(s, 6),
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size=i32(s, 8),
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offset=i32(s, 12),
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dim=(width, height),
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square=width * height,
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# See Wikipedia notes about color depth.
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# We need this just to differ images with equal sizes
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color_depth=bpp or (nb_color != 0 and ceil(log(nb_color, 2))) or 256,
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)
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icon_header["dim"] = (icon_header["width"], icon_header["height"])
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icon_header["square"] = icon_header["width"] * icon_header["height"]
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self.entry.append(icon_header)
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self.entry = sorted(self.entry, key=lambda x: x["color_depth"])
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self.entry = sorted(self.entry, key=lambda x: x.color_depth)
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# ICO images are usually squares
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self.entry = sorted(self.entry, key=lambda x: x["square"], reverse=True)
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self.entry = sorted(self.entry, key=lambda x: x.square, reverse=True)
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def sizes(self) -> set[tuple[int, int]]:
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"""
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Get a list of all available icon sizes and color depths.
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Get a set of all available icon sizes and color depths.
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"""
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return {(h["width"], h["height"]) for h in self.entry}
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return {(h.width, h.height) for h in self.entry}
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def getentryindex(self, size: tuple[int, int], bpp: int | bool = False) -> int:
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for i, h in enumerate(self.entry):
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if size == h["dim"] and (bpp is False or bpp == h["color_depth"]):
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if size == h.dim and (bpp is False or bpp == h.color_depth):
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return i
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return 0
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@ -202,9 +209,9 @@ class IcoFile:
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header = self.entry[idx]
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self.buf.seek(header["offset"])
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self.buf.seek(header.offset)
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data = self.buf.read(8)
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self.buf.seek(header["offset"])
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self.buf.seek(header.offset)
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im: Image.Image
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if data[:8] == PngImagePlugin._MAGIC:
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@ -222,8 +229,7 @@ class IcoFile:
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im.tile[0] = d, (0, 0) + im.size, o, a
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# figure out where AND mask image starts
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bpp = header["bpp"]
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if 32 == bpp:
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if 32 == header.bpp:
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# 32-bit color depth icon image allows semitransparent areas
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# PIL's DIB format ignores transparency bits, recover them.
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# The DIB is packed in BGRX byte order where X is the alpha
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@ -253,7 +259,7 @@ class IcoFile:
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# padded row size * height / bits per char
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total_bytes = int((w * im.size[1]) / 8)
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and_mask_offset = header["offset"] + header["size"] - total_bytes
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and_mask_offset = header.offset + header.size - total_bytes
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self.buf.seek(and_mask_offset)
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mask_data = self.buf.read(total_bytes)
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@ -307,7 +313,7 @@ class IcoImageFile(ImageFile.ImageFile):
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def _open(self) -> None:
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self.ico = IcoFile(self.fp)
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self.info["sizes"] = self.ico.sizes()
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self.size = self.ico.entry[0]["dim"]
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self.size = self.ico.entry[0].dim
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self.load()
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@property
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@ -3286,7 +3286,7 @@ def fromarray(obj: SupportsArrayInterface, mode: str | None = None) -> Image:
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return frombuffer(mode, size, obj, "raw", rawmode, 0, 1)
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def fromqimage(im):
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def fromqimage(im) -> ImageFile.ImageFile:
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"""Creates an image instance from a QImage image"""
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from . import ImageQt
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@ -3296,7 +3296,7 @@ def fromqimage(im):
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return ImageQt.fromqimage(im)
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def fromqpixmap(im):
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def fromqpixmap(im) -> ImageFile.ImageFile:
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"""Creates an image instance from a QPixmap image"""
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from . import ImageQt
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@ -3867,7 +3867,7 @@ class Exif(_ExifBase):
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# returns a dict with any single item tuples/lists as individual values
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return {k: self._fixup(v) for k, v in src_dict.items()}
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def _get_ifd_dict(self, offset, group=None):
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def _get_ifd_dict(self, offset: int, group=None):
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try:
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# an offset pointer to the location of the nested embedded IFD.
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# It should be a long, but may be corrupted.
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@ -3881,7 +3881,7 @@ class Exif(_ExifBase):
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info.load(self.fp)
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return self._fixup_dict(info)
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def _get_head(self):
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def _get_head(self) -> bytes:
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version = b"\x2B" if self.bigtiff else b"\x2A"
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if self.endian == "<":
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head = b"II" + version + b"\x00" + o32le(8)
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@ -4102,16 +4102,16 @@ class Exif(_ExifBase):
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keys.update(self._info)
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return len(keys)
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def __getitem__(self, tag):
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def __getitem__(self, tag: int):
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if self._info is not None and tag not in self._data and tag in self._info:
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self._data[tag] = self._fixup(self._info[tag])
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del self._info[tag]
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return self._data[tag]
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def __contains__(self, tag) -> bool:
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def __contains__(self, tag: object) -> bool:
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return tag in self._data or (self._info is not None and tag in self._info)
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def __setitem__(self, tag, value) -> None:
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def __setitem__(self, tag: int, value) -> None:
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if self._info is not None and tag in self._info:
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del self._info[tag]
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self._data[tag] = value
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@ -553,7 +553,9 @@ def _save(im, fp, tile, bufsize: int = 0) -> None:
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fp.flush()
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def _encode_tile(im, fp, tile: list[_Tile], bufsize: int, fh, exc=None) -> None:
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def _encode_tile(
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im, fp: IO[bytes], tile: list[_Tile], bufsize: int, fh, exc=None
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) -> None:
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for encoder_name, extents, offset, args in tile:
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if offset > 0:
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fp.seek(offset)
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@ -653,7 +655,7 @@ class PyCodec:
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"""
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pass
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def setfd(self, fd) -> None:
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def setfd(self, fd: IO[bytes]) -> None:
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"""
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Called from ImageFile to set the Python file-like object
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@ -19,11 +19,14 @@ from __future__ import annotations
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import sys
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from io import BytesIO
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from typing import Callable
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from typing import TYPE_CHECKING, Callable
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from . import Image
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from ._util import is_path
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if TYPE_CHECKING:
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from . import ImageFile
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qt_version: str | None
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qt_versions = [
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["6", "PyQt6"],
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@ -90,11 +93,11 @@ def fromqimage(im):
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return Image.open(b)
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def fromqpixmap(im):
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def fromqpixmap(im) -> ImageFile.ImageFile:
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return fromqimage(im)
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def align8to32(bytes, width, mode):
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def align8to32(bytes: bytes, width: int, mode: str) -> bytes:
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"""
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converts each scanline of data from 8 bit to 32 bit aligned
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"""
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@ -172,7 +175,7 @@ def _toqclass_helper(im):
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if qt_is_installed:
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class ImageQt(QImage):
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def __init__(self, im):
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def __init__(self, im) -> None:
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"""
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An PIL image wrapper for Qt. This is a subclass of PyQt's QImage
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class.
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@ -70,11 +70,14 @@ class Dib:
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"""
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def __init__(
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self, image: Image.Image | str, size: tuple[int, int] | list[int] | None = None
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self, image: Image.Image | str, size: tuple[int, int] | None = None
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) -> None:
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if isinstance(image, str):
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mode = image
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image = ""
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if size is None:
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msg = "If first argument is mode, size is required"
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raise ValueError(msg)
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else:
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mode = image.mode
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size = image.size
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@ -105,7 +108,12 @@ class Dib:
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result = self.image.expose(handle)
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return result
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def draw(self, handle, dst, src=None):
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def draw(
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self,
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handle,
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dst: tuple[int, int, int, int],
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src: tuple[int, int, int, int] | None = None,
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):
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"""
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Same as expose, but allows you to specify where to draw the image, and
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what part of it to draw.
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@ -115,7 +123,7 @@ class Dib:
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the destination have different sizes, the image is resized as
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necessary.
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"""
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if not src:
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if src is None:
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src = (0, 0) + self.size
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if isinstance(handle, HWND):
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dc = self.image.getdc(handle)
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@ -202,22 +210,22 @@ class Window:
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title, self.__dispatcher, width or 0, height or 0
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)
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def __dispatcher(self, action, *args):
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def __dispatcher(self, action: str, *args):
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return getattr(self, f"ui_handle_{action}")(*args)
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def ui_handle_clear(self, dc, x0, y0, x1, y1):
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def ui_handle_clear(self, dc, x0, y0, x1, y1) -> None:
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pass
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def ui_handle_damage(self, x0, y0, x1, y1):
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def ui_handle_damage(self, x0, y0, x1, y1) -> None:
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pass
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def ui_handle_destroy(self) -> None:
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pass
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def ui_handle_repair(self, dc, x0, y0, x1, y1):
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def ui_handle_repair(self, dc, x0, y0, x1, y1) -> None:
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pass
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def ui_handle_resize(self, width, height):
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def ui_handle_resize(self, width, height) -> None:
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pass
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def mainloop(self) -> None:
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@ -227,12 +235,12 @@ class Window:
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class ImageWindow(Window):
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"""Create an image window which displays the given image."""
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def __init__(self, image, title="PIL"):
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def __init__(self, image, title: str = "PIL") -> None:
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if not isinstance(image, Dib):
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image = Dib(image)
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self.image = image
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width, height = image.size
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super().__init__(title, width=width, height=height)
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def ui_handle_repair(self, dc, x0, y0, x1, y1):
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def ui_handle_repair(self, dc, x0, y0, x1, y1) -> None:
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self.image.draw(dc, (x0, y0, x1, y1))
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|
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@ -18,6 +18,7 @@ from __future__ import annotations
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from collections.abc import Sequence
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from io import BytesIO
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from typing import cast
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from . import Image, ImageFile
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from ._binary import i16be as i16
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@ -184,7 +185,7 @@ Image.register_open(IptcImageFile.format, IptcImageFile)
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Image.register_extension(IptcImageFile.format, ".iim")
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def getiptcinfo(im):
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def getiptcinfo(im: ImageFile.ImageFile):
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"""
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Get IPTC information from TIFF, JPEG, or IPTC file.
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@ -221,16 +222,17 @@ def getiptcinfo(im):
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class FakeImage:
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pass
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im = FakeImage()
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im.__class__ = IptcImageFile
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fake_im = FakeImage()
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fake_im.__class__ = IptcImageFile # type: ignore[assignment]
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iptc_im = cast(IptcImageFile, fake_im)
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# parse the IPTC information chunk
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im.info = {}
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im.fp = BytesIO(data)
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iptc_im.info = {}
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iptc_im.fp = BytesIO(data)
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try:
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im._open()
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iptc_im._open()
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except (IndexError, KeyError):
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pass # expected failure
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return im.info
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return iptc_im.info
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|
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|
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@ -685,7 +685,11 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
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raise ValueError(msg)
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subsampling = get_sampling(im)
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def validate_qtables(qtables):
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def validate_qtables(
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qtables: (
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str | tuple[list[int], ...] | list[list[int]] | dict[int, list[int]] | None
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)
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) -> list[list[int]] | None:
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if qtables is None:
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return qtables
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if isinstance(qtables, str):
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|
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@ -715,12 +719,12 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
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if len(table) != 64:
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msg = "Invalid quantization table"
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raise TypeError(msg)
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table = array.array("H", table)
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table_array = array.array("H", table)
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except TypeError as e:
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msg = "Invalid quantization table"
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raise ValueError(msg) from e
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else:
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qtables[idx] = list(table)
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qtables[idx] = list(table_array)
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return qtables
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if qtables == "keep":
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|
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@ -39,7 +39,7 @@ import struct
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import warnings
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import zlib
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from enum import IntEnum
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from typing import IO, TYPE_CHECKING, Any, NoReturn
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from typing import IO, TYPE_CHECKING, Any, NamedTuple, NoReturn
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from . import Image, ImageChops, ImageFile, ImagePalette, ImageSequence
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from ._binary import i16be as i16
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@ -1126,7 +1126,21 @@ class _fdat:
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self.seq_num += 1
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|
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def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_images):
|
||||
class _Frame(NamedTuple):
|
||||
im: Image.Image
|
||||
bbox: tuple[int, int, int, int] | None
|
||||
encoderinfo: dict[str, Any]
|
||||
|
||||
|
||||
def _write_multiple_frames(
|
||||
im: Image.Image,
|
||||
fp: IO[bytes],
|
||||
chunk,
|
||||
mode: str,
|
||||
rawmode: str,
|
||||
default_image: Image.Image | None,
|
||||
append_images: list[Image.Image],
|
||||
) -> Image.Image | None:
|
||||
duration = im.encoderinfo.get("duration")
|
||||
loop = im.encoderinfo.get("loop", im.info.get("loop", 0))
|
||||
disposal = im.encoderinfo.get("disposal", im.info.get("disposal", Disposal.OP_NONE))
|
||||
|
|
@ -1137,7 +1151,7 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
|
|||
else:
|
||||
chain = itertools.chain([im], append_images)
|
||||
|
||||
im_frames = []
|
||||
im_frames: list[_Frame] = []
|
||||
frame_count = 0
|
||||
for im_seq in chain:
|
||||
for im_frame in ImageSequence.Iterator(im_seq):
|
||||
|
|
@ -1158,24 +1172,24 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
|
|||
|
||||
if im_frames:
|
||||
previous = im_frames[-1]
|
||||
prev_disposal = previous["encoderinfo"].get("disposal")
|
||||
prev_blend = previous["encoderinfo"].get("blend")
|
||||
prev_disposal = previous.encoderinfo.get("disposal")
|
||||
prev_blend = previous.encoderinfo.get("blend")
|
||||
if prev_disposal == Disposal.OP_PREVIOUS and len(im_frames) < 2:
|
||||
prev_disposal = Disposal.OP_BACKGROUND
|
||||
|
||||
if prev_disposal == Disposal.OP_BACKGROUND:
|
||||
base_im = previous["im"].copy()
|
||||
base_im = previous.im.copy()
|
||||
dispose = Image.core.fill("RGBA", im.size, (0, 0, 0, 0))
|
||||
bbox = previous["bbox"]
|
||||
bbox = previous.bbox
|
||||
if bbox:
|
||||
dispose = dispose.crop(bbox)
|
||||
else:
|
||||
bbox = (0, 0) + im.size
|
||||
base_im.paste(dispose, bbox)
|
||||
elif prev_disposal == Disposal.OP_PREVIOUS:
|
||||
base_im = im_frames[-2]["im"]
|
||||
base_im = im_frames[-2].im
|
||||
else:
|
||||
base_im = previous["im"]
|
||||
base_im = previous.im
|
||||
delta = ImageChops.subtract_modulo(
|
||||
im_frame.convert("RGBA"), base_im.convert("RGBA")
|
||||
)
|
||||
|
|
@ -1186,14 +1200,14 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
|
|||
and prev_blend == encoderinfo.get("blend")
|
||||
and "duration" in encoderinfo
|
||||
):
|
||||
previous["encoderinfo"]["duration"] += encoderinfo["duration"]
|
||||
previous.encoderinfo["duration"] += encoderinfo["duration"]
|
||||
continue
|
||||
else:
|
||||
bbox = None
|
||||
im_frames.append({"im": im_frame, "bbox": bbox, "encoderinfo": encoderinfo})
|
||||
im_frames.append(_Frame(im_frame, bbox, encoderinfo))
|
||||
|
||||
if len(im_frames) == 1 and not default_image:
|
||||
return im_frames[0]["im"]
|
||||
return im_frames[0].im
|
||||
|
||||
# animation control
|
||||
chunk(
|
||||
|
|
@ -1211,14 +1225,14 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
|
|||
|
||||
seq_num = 0
|
||||
for frame, frame_data in enumerate(im_frames):
|
||||
im_frame = frame_data["im"]
|
||||
if not frame_data["bbox"]:
|
||||
im_frame = frame_data.im
|
||||
if not frame_data.bbox:
|
||||
bbox = (0, 0) + im_frame.size
|
||||
else:
|
||||
bbox = frame_data["bbox"]
|
||||
bbox = frame_data.bbox
|
||||
im_frame = im_frame.crop(bbox)
|
||||
size = im_frame.size
|
||||
encoderinfo = frame_data["encoderinfo"]
|
||||
encoderinfo = frame_data.encoderinfo
|
||||
frame_duration = int(round(encoderinfo.get("duration", 0)))
|
||||
frame_disposal = encoderinfo.get("disposal", disposal)
|
||||
frame_blend = encoderinfo.get("blend", blend)
|
||||
|
|
@ -1253,6 +1267,7 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
|
|||
[("zip", (0, 0) + im_frame.size, 0, rawmode)],
|
||||
)
|
||||
seq_num = fdat_chunks.seq_num
|
||||
return None
|
||||
|
||||
|
||||
def _save_all(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
|
||||
|
|
@ -1437,12 +1452,15 @@ def _save(
|
|||
exif = exif[6:]
|
||||
chunk(fp, b"eXIf", exif)
|
||||
|
||||
single_im: Image.Image | None = im
|
||||
if save_all:
|
||||
im = _write_multiple_frames(
|
||||
single_im = _write_multiple_frames(
|
||||
im, fp, chunk, mode, rawmode, default_image, append_images
|
||||
)
|
||||
if im:
|
||||
ImageFile._save(im, _idat(fp, chunk), [("zip", (0, 0) + im.size, 0, rawmode)])
|
||||
if single_im:
|
||||
ImageFile._save(
|
||||
single_im, _idat(fp, chunk), [("zip", (0, 0) + single_im.size, 0, rawmode)]
|
||||
)
|
||||
|
||||
if info:
|
||||
for info_chunk in info.chunks:
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user