*h SSKJrJr SSKJr SSKJrJr SSKJ r "SS\ 5r "SS5r "S S 5r "S S 5r S r"SS5r"SS\5r"SS\5rg)) MIME_TYPEPNG_CHUNK_TYPE)InvalidImageStreamError) BIG_ENDIAN StreamReader)BaseImageHeadercH\rSrSrSr\S5r\S5r\S5r Sr g)Pngz#Image header parser for PNG images.c"[R$)zMMIME content type for this image, unconditionally `image/png` for PNG images.)rPNGselfs K/home/mande/repo/quber/.venv/lib/python3.13/site-packages/docx/image/png.py content_typePng.content_type s}}cg)z8Default filename extension, always 'png' for PNG images.pngrs r default_extPng.default_extsrc[RU5nURnURnURnUR nU"X4XV5$)zOReturn a |Png| instance having header properties parsed from image in `stream`.) _PngParserparsepx_width px_heighthorz_dpivert_dpi)clsstreamparserrrrrs r from_streamPng.from_streamsG!!&)??$$ ????8;;rrN) __name__ __module__ __qualname____firstlineno____doc__propertyrr classmethodr#__static_attributes__rrrr r s?-   < [[U] 5 XlgN)superr__init___chunks)rchunks __class__s rr2_PngParser.__init__&s j$(* rc<[RU5nU"U5$)zfReturn a |_PngParser| instance containing the header properties parsed from the PNG image in `stream`.)_Chunksr#)r r!r4s rr_PngParser.parse*s$$V,6{rcFURRnUR$)z.The number of pixels in each row of the image.)r3IHDRrrr;s rr_PngParser.px_width1s||  }}rcFURRnUR$)z2The number of stacked rows of pixels in the image.)r3r;rr<s rr_PngParser.px_height7s||  ~~rcURRnUcgURURUR5$)zwInteger dots per inch for the width of this image. Defaults to 72 when not present in the file, as is often the case. H)r3pHYs_dpiunits_specifierhorz_px_per_unitrrBs rr_PngParser.horz_dpi=8 ||   <yy--t/D/DEErcURRnUcgURURUR5$)zxInteger dots per inch for the height of this image. Defaults to 72 when not present in the file, as is often the case. rA)r3rBrCrDvert_px_per_unitrFs rr_PngParser.vert_dpiHrHrcLUS:XaU(a[[US-55$g)zOReturn dots per inch value calculated from `units_specifier` and `px_per_unit`.rg F%u?rA)intround)rD px_per_units rrC_PngParser._dpiSs& a Ku[6123 3rr3)r%r&r'r(r)r2r+rr*rrrr staticmethodrCr, __classcell__r5s@rrr#sX   FFFFrrcb^\rSrSrSrU4Sjr\S5r\S5r \S5r Sr Sr U=r $) r8\z8Collection of the chunks parsed from a PNG image stream.cJ>[[U] 5 [U5Ulgr0)r1r8r2listr3)rchunk_iterabler5s rr2_Chunks.__init___s gt%'N+ rcn[RU5n[UR55nU"U5$)zBReturn a |_Chunks| instance containing the PNG chunks in `stream`.) _ChunkParserr#rX iter_chunks)r r! chunk_parserr4s rr#_Chunks.from_streamcs1$//7 l..016{rcJSnURU5nUc [S5eU$)zIHDR chunk in PNG image.c<UR[R:H$r0) type_namerr;chunks r_Chunks.IHDR..meoo1D1DDrzno IHDR chunk in PNG image) _find_firstr)rmatchr;s rr; _Chunks.IHDRjs0E& <)*FG G rc*SnURU5$)z2PHYs chunk in PNG image, or |None| if not present.c<UR[R:H$r0)rbrrBrcs rre_Chunks.pHYs..vrgr)rh)rris rrB _Chunks.pHYsssE&&rcLURHnU"U5(dMUs $ g)zGReturn first chunk in stream order returning True for function `match`.NrQ)rrirds rrh_Chunks._find_firstys#\\EU|| "rrQ)r%r&r'r(r)r2r+r#r*r;rBrhr,rSrTs@rr8r8\sQB, '' rr8cH^\rSrSrSrU4Sjr\S5rSrSr Sr U=r $)r\z(Extracts chunks from a PNG image stream.c6>[[U] 5 Xlgr0)r1r\r2 _stream_rdr)r stream_rdrr5s rr2_ChunkParser.__init__s lD*,%rc2[U[5nU"U5$)z\Return a |_ChunkParser| instance that can extract the chunks from the PNG image in `stream`.)rr)r r!rus rr#_ChunkParser.from_streams"&*5 :rc#r# UR5Hup[XRU5nUv M! g7f)zyGenerate a |_Chunk| subclass instance for each chunk in this parser's PNG stream, in the order encountered in the stream.N)_iter_chunk_offsets _ChunkFactoryrt)r chunk_typeoffsetrds rr]_ChunkParser.iter_chunkss4#'":":"< J!*.>.>GEK#=s57c## SnURRU5nURRSUS5nUS-nX44v US:XagUSU-S-- nMV7f)zGenerate a (chunk_type, chunk_offset) 2-tuple for each of the chunks in the PNG image stream. Iteration stops after the IEND chunk is returned. IENDN)rt read_longread_str)r chunk_offsetchunk_data_lenr| data_offsets rrz _ChunkParser._iter_chunk_offsetssv  !--77 EN))221lAFJ&*K) )V# EN2Q6 6LsAA)rt) r%r&r'r(r)r2r+r#r]rzr,rSrTs@rr\r\s.2& 77rr\c[R[[R[0nUR U[ 5nURXU5$)zeReturn a |_Chunk| subclass instance appropriate to `chunk_type` parsed from `stream_rdr` at `offset`.)rr; _IHDRChunkrB _pHYsChunkget_Chunk from_offset)r|rur} chunk_cls_map chunk_clss rr{r{sH ZZM!!*f5I   @@rcL^\rSrSrSrU4Sjr\S5r\S5r Sr U=r $)rzMBase class for specific chunk types. Also serves as the default chunk type. c6>[[U] 5 Xlgr0)r1rr2 _chunk_type)rr|r5s rr2_Chunk.__init__s fd$&%rcU"U5$)z@Return a default _Chunk instance that only knows its chunk type.r)r r|rur}s rr_Chunk.from_offsets:rcUR$)z.The chunk type name, e.g. 'IHDR', 'pHYs', etc.rrs rrb_Chunk.type_namesrr) r%r&r'r(r)r2r+rr*rbr,rSrTs@rrrs5 &  rrc\^\rSrSrSrU4Sjr\S5r\S5r \S5r Sr U=r $)rz*IHDR chunk, contains the image dimensions.cD>[[U] U5 X lX0lgr0)r1rr2 _px_width _px_height)rr|rrr5s rr2_IHDRChunk.__init__s j$(4!#rcZURU5nURUS5nU"XU5$)ztReturn an _IHDRChunk instance containing the image dimensions extracted from the IHDR chunk in `stream` at `offset`.r)r)r r|rur}rrs rr_IHDRChunk.from_offsets3''/((3 :33rcUR$r0)rrs rr_IHDRChunk.px_widths ~~rcUR$r0)rrs rr_IHDRChunk.px_heights r)rr) r%r&r'r(r)r2r+rr*rrr,rSrTs@rrrsG4$ 44rrcl^\rSrSrSrU4Sjr\S5r\S5r \S5r \S5r Sr U=r $) rz/PYHs chunk, contains the image dpi information.cP>[[U] U5 X lX0lX@lgr0)r1rr2_horz_px_per_unit_vert_px_per_unit_units_specifier)rr|rErJrDr5s rr2_pHYsChunk.__init__s$ j$(4!1!1 /rc~URU5nURUS5nURUS5nU"XXV5$)zsReturn a _pHYsChunk instance containing the image resolution extracted from the pHYs chunk in `stream` at `offset`.rr)r read_byte)r r|rur}rErJrDs rr_pHYsChunk.from_offsetsH&//7%//:$..vq9:1ASSrcUR$r0)rrs rrE_pHYsChunk.horz_px_per_unit%%%rcUR$r0)rrs rrJ_pHYsChunk.vert_px_per_unitrrcUR$r0)rrs rrD_pHYsChunk.units_specifiers$$$r)rrr)r%r&r'r(r)r2r+rr*rErJrDr,rSrTs@rrrs]90 TT&&&&%%rrN) constantsrr exceptionsrhelpersrrimagerr rr8r\r{rrrrrrrsf0/-"