h5jdZddlmZddlZddlmZmZddlmZm Z ddl m Z ddl m Z ddlmZdd lmZdd lmZmZmZmZmZmZmZmZmZmZmZmZmZm Z dd l!m"Z"m#Z#ejHe%Z&Gd d e'Z(GddZ)GddZ*Gdde*Z+Gdde*Z,Gdde*Z-GddZ.Gdde*Z/Gdde*Z0GddZ1Gd d!e*Z2Gd"d#eZ3Gd$d%e3Z4Gd&d'e4Z5d1d(Z6d1d)Z7d*Z8e Gd+d,Z9e d2d-Z: d3d.Z; d4d/Z< d5d0Z=y)6z+Support for working with interactive forms.) annotationsN)ABCabstractmethod) GeneratorSequence)contextmanager) dataclass)Decimal)cast)AcroForm AcroFormFieldArray Dictionary FormFieldFlagMatrixNameObjectOperatorPagePdf RectangleStringparse_content_stream)ContentStreamBuilder SimpleFontc2eZdZdZdZfdZfdZxZS)MultipleFieldProxya A list of fields that share the same name. Behaves like a list, allowing access to all duplicate fields. Also behaves like the first field in the list, proxying attribute access, to maintain backward compatibility with code expecting a single field. c t|d|SNr)getattrselfnames B/var/www/html/qr/venv/lib/python3.12/site-packages/pikepdf/form.py __getattr__zMultipleFieldProxy.__getattr__-stAw%%ct|dkDr t|d|rt|d||yt|||yr)lenhasattrsetattrsuper __setattr__)r"r#value __class__s r$r,zMultipleFieldProxy.__setattr__0s< t9q=WT!Wd3 DGT5 ) G e ,r&c(dt|dS)Nz)r+__repr__)r"r.s r$r1zMultipleFieldProxy.__repr__8s&uw'7'9&:!<r?r:r<)r"pdfr:r<s r$__init__z Form.__init__\sB   +(r!s r$r%zForm.__getattr__kst~~t,,r&c P||jvr|j|S|jj|}|s t|t |dkDr:t |Dcgc]}|j ||c}}||j|<|S|j |d|Scc}w)Nr)r?r>get_fields_with_qualified_nameKeyErrorr(r_wrap)r"r#fieldsfwrappeds r$ __getitem__zForm.__getitem__ns 4;; ;;t$ $>>tD4. v;?(v)N!$**Q*=)NOG 'DKK Nzz&)T** *OsB#cF |j|y#t$rYywxYw)NTF)rNrIr!s r$ __contains__zForm.__contains__}s*    T "  s   c #<Kt}|jjD]o}|j}||jvr)||vr%|j |||j|fG||jvr3|j r'|j|j|jk(r||jvr|j r|jj|}t|dkDrQt|Dcgc]}|j||c}}||j|<|j |||f|j |||j|d|fI|j |||j||frycc}ww)z6Yield (name, field) pairs for all fields in this form.rGrN) setr>rKfully_qualified_namer?addis_radio_buttonparent_fieldrHr(rrJ)r"seenfieldr#rKrLrMs r$itemsz Form.itemssau^^**" 4E--Dt{{"t4'7DKK--- #))LLDKK$5$<$<<$&&FFtLv;?0v1V!$**Q2E1VWG(/DKK%HHTN-'HHTN 6!9d ;;;DJJud333E" 422WsC6F8F B Fc#DK|jD] \}}| ywrE)rZ)r"r#items r$__iter__z Form.__iter__s$**, JD$J s c|jr t||}n|jr t||}n|jr t ||}ng|j r t||}nN|jr t||}n5|jtjk(r t||}n td||j|<|S)NzUnknown field type)is_text TextField is_checkbox CheckboxFieldrURadioButtonGroup is_pushbuttonPushbuttonField is_choice ChoiceField field_typerSigSignatureField RuntimeErrorr?)r"rYr#rMs r$rJz Form._wraps ==e,G   #D%0G  " "&tU3G  %dE2G __!$.G    )$T51G34 4# Dr&rE)rBrr:z&type[AppearanceStreamGenerator] | None)r#str)returnz9Generator[tuple[str, _FieldWrapper | MultipleFieldProxy]])rYr r#rlrm _FieldWrapper) r2r3r4r5r:__annotations__rCr%rNrPrZr]rJr&r$r9r9<s">B:A I 99 HL 3  3  3E 3- +%4Nr&r9cTeZdZdZddZdZed dZed dZed dZ y) rnzBase class for other field types. 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G s$')rOptrWrrras_listrys`r$rzChoiceField.optionssR 884;;?? * ' (;(;(C(C(EF   r&ctj|jjvrst |jjjj D]9\}}t |td||}|j|jk(s7|cS|jyt |t|jdS)z@The currently selected option, or None if no option is selected.rN) rr rWrrr rr export_valuer-r)r"rr rs r$rzChoiceField.selected&s 88t{{ &' (;(;(C(C(EF " s*46F1LeT&&$**4!M " ::  vdjj'94@@r&c:|j|ur td|jj|j|jj du|jj 0|jj j |jyy)Nz$Option does not belong to this field)rWrrr rsr:generate_choicers r$rzChoiceField.selected2s{ == $CD D    !@!@D!H  :: * * 6 JJ + + ; ;DKK H 7r&c\|jj|jjSy)rN)rWr-rrys r$r-zChoiceField.valueCs' ;;   (;;.. .r&c|jskd}t|jjjD]/\}}t |t d||}|j|k(s-d}n|s td||jj||jjdu|jj0|jjj|jyy)NFrTz)Not a valid option for this choice field:) rrrWrr rr r rrrsr:r)r"r-okayrr rs r$r-zChoiceField.valueJsD' (;(;<  s*46F1LeT&&%/D    !LeTT eTZZ%D%D%LM :: * * 6 JJ + + ; ;DKK H 7r&Nr)rmzSequence[ChoiceFieldOption])rmzChoiceFieldOption | None)rr)rm str | None)r-r) r2r3r4r5rrrrrrrrr-rpr&r$rgrgs  G G@@??KK     A A__ I I   \\IIr&rgcteZdZdZd dZedZedZed dZed dZ dZ ed dZ y ) rz.Represents a single option for a choice field.c.||_||_||_y)z'Create a new option for a choice field.N)rW_optr)r"rYr rs r$rCzChoiceFieldOption.__init__`s   r&clt|jtr|jdS|jS)zGThe value that will be displayed on-screen to the user in a PDF reader.rG isinstancerrrys r$ display_valuezChoiceFieldOption.display_valuef* dii '99Q< 99 r&clt|jtr|jdS|jS)z?The value that will be used when exporting data from this form.rrrys r$r zChoiceFieldOption.export_valuenrr&c|jduxrT|jt|jjjj t j dkS)zIs this option hidden? Hidden options are still settable via code, but are not shown to users in PDF reader applications. Nr)rrrWrgetrTIrys r$ is_hiddenzChoiceFieldOption.is_hiddenvsP{{$& 4;; KK   " " & &tww 2: ,  r&c|jduS)zIs this option one of the field's preset options? If false, this is a manually entered value typed by the user in an editable choice field. N)rrys r$ is_presetzChoiceFieldOption.is_presets{{$&&r&c&||j_y)z'Set this option as the selected option.N)rWrrys r$rzChoiceFieldOption.selects# r&cH|jj|jk(S)z&Is this the currently selected option?)rWr-r rys r$rzChoiceFieldOption.selecteds{{  D$5$555r&N)rYrgr rrrr) r2r3r4r5rCrrr r r"rrrpr&r$rr]ss8   ''$66r&rc8eZdZdZdd ddZ ddZy)rjzKRepresents a signature field. Signatures are not truly supported. N) expand_rectc N|jjj|jd}tj |j vrIt|j j j||j|j||jjjD]a}|jjj|D]7}||k(s |j||j|j|ccSctd)aStamp an image over the top of a signature field. This is *not* true support for PDF signatures. Rather, it is merely a utility for adding an image to the PDF at the location of a signature field. This uses `pikepdf.Page.add_overlay` under the hood, see that method for additional usage information. If the bounding box of the signature field is smaller than the "visual" signature area in the PDF, you may use the ``expand_rect`` parameter to increase the dimensions of the rectangle when stamping. This may be any of the following types: * A number, which will be added equally to all sides of the box * A sequence of two numbers, which will be added on the X and Y axis, respectively * A sequence of four numbers, which will be added to the left, bottom, right, and top sides respectively Positive numbers will increase the size of the box, and negative numbers will decease it. rz-Could not find annotation for signature field)rsr>get_annotations_for_fieldrWrPrr add_overlay _expand_rectrectr=pagesget_widget_annotations_for_pager)r"overlayr& field_annotpageannots r$ stamp_overlayzSignatureField.stamp_overlaysBjj**DDT[[QRST 66[__ $ "" # / /**;+;+;[I JJOO)) D--MMdS K'++!2!25::{!K  HIIr&c ||St|tttfr||||f}n3t |dk(r|d|d|d|df}n|d|d|d|df}t |j t|dz |jt|dz |jt|dz|jt|dzS)NrrG) rrfloatr r(rllxllyurxury)r"r, expand_byexpands r$r+zSignatureField._expand_rects  K i#ug!6 7IyAF ^q lIaL)A, ! MFlIaL)A, ! MF HHuVAY' ' HHuVAY' ' HHuVAY' ' HHuVAY' '   r&)r/z Object | Pager&>int | float | Decimal | Sequence[int | float | Decimal] | Nonermr)r,rr<r>)r2r3r4r5r3r+rpr&r$rjrjsJ.J.J .J .J`  R r&rjcReZdZUdZded<ded<d dZed dZed dZy ) AppearanceStreamGeneratorzAppearance stream generators are used to render forms. They are used by the `pikepdf.form.Form` class to optionally generate appearance streams as forms are filled. rrBr rtc ||_||_y)z+Initialize the appearance stream generator.N)rBrt)r"rBrts r$rCz"AppearanceStreamGenerator.__init__s r&cyz0Generate the appearance stream for a text field.Nrpr"rYs r$rz'AppearanceStreamGenerator.generate_textr&cyz2Generate the appearance stream for a choice field.NrprDs r$rz)AppearanceStreamGenerator.generate_choicerEr&N)rBrrtr rYr ) r2r3r4r5rorCrrrrpr&r$r@r@sB H N ??AAr&r@c eZdZdZddZddZy) DefaultAppearanceStreamGeneratoraBasic appearance stream generator using QPDF's default algorithm. It is thus subject to all the same `limitations `_. Briefly summarized, these limitations are: * Cannot generate appearance streams using encodings other than ASCII, WinAnsi, or MacRoman * No support for multiline text * No support for auto-sized text * Does not respect quadding Using this class will produce the same results as the following code: .. code-block:: python form = Form(pdf, generate_appearances = None) ... pdf.generate_appearances() However, unlike the above, appearances will be generated on the fly as the form is filled out, rather than all at once at the end. You may extend this class to customize appearance streams or add support for features you need. cf|jj|D]}|j|yrCrtr(generate_appearancer"rYr2s r$rz.DefaultAppearanceStreamGenerator.generate_text.YY88? -E  % %e , -r&cf|jj|D]}|j|yrGrLrNs r$rz0DefaultAppearanceStreamGenerator.generate_choicerOr&NrH)r2r3r4r5rrrpr&r$rJrJs8- -r&rJc$eZdZdZdfd ZxZS)!ExtendedAppearanceStreamGeneratoraAlternate appearance stream generator to address limitations of the default one. Improved features include: * Supports multiline text fields, with caveats: * Word wrap does not take scaling factors (other than font size) into account * Spacing operators not taken into consideration either * Quadding is still ignored * Due to limitations in Firefox's PDF viewer, the font and the line breaks will be incorrect when viewed in Firefox. PDFs filled by full-fat PDF readers, including Adobe Acrobat Reader, exhibit the same behavior when viewed in Firefox. * Supports combed text fields, with most of the same caveats as above Otherwise, this implementation has most of the same limitations as the default implementation. Unlike the default implementation, this is implemented in Python rather than C++, so will also be less performant. c |jtjzr"t|j|j |y|jtj zr"t|j|j |yt|%|yrC) rwrr_text_appearance_multilinerBrtr_text_appearance_combedr+r)r"rYr.s r$rz/ExtendedAppearanceStreamGenerator.generate_text<s^ ;;33 3 &txxE B [[=00 0 #DHHdii ? G !% (r&rH)r2r3r4r5rr6r7s@r$rRrR%s,))r&rRc tj|}|j|D]}|jj }t |j 5}|j|jj}||jxsd}n&|jj||j}|jtjj!|j"t%|j&|z t)||j*||dddt-||||y#1swYxYwr)_DaInfodecode_for_fieldr(r,to_bbox_text_stream_builderda text_matrixfontascent line_spacing convert_width font_sizeset_text_matrixridentity translatedr8r r;_layout_multiline_textr_apply_appearance_stream) rBrtrYda_infor2bboxcsr^ top_offsets r$rTrTWs&&u-G//6@zz!!# !'** - M""*!,,>!(!5!5!:J")!;!; 1 1"J""OO%00'$(("3j"@ #2u'<'Jw  ! +I T2y 9D ww%)) !D) r&ceZdZUded<ded<ded<ded<d Zd ed <d Zd ed <d Zd ed <d Zded<eddZ y )rWbytesr[rr]rrrr raNzDecimal | None char_spacing word_spacingr_z Matrix | Noner\c |j}tj}|j|}t |}t d}t d}d}d} |D]%} | j |k(r| }| j |k(s$| } '|td|j|j\} } | dk(r|jdd}td} ntt| } tt| }tj||j }| tt"| jdnd}|j$rt|j$n| }||||| dd||S) a%Parse the default appearance, returning it and the font styling information. The default appearance is a value that is used to initialize the content stream for text fields. It must at minimum contain a `Tf` operator, which indicates the font family and size. TfTmNz6No Tf operator found in default appearance stream for rs0 Tfs11 Tf )default_appearancernew make_streamrroperatorrkrSoperandsrr r rrloaddefault_resourcesrleading)clsrYr[tmp_pdf tmp_stream instructionstf_optm_optf_insttm_instinstfont_family_obj font_size_objra font_familyr]matrixr_s r$rXz_DaInfo.decode_for_fieldsd % %'')((, +J7   D}}%}}%   ?H--.0  *1)9)9& A  GX.B IWm4I41 {E,C,CD181DD))!, -$ 15 wt||,) 2t[)T4vVVr&)rYr rmrW) r2r3r4roryrzr_r\ classmethodrXrpr&r$rWrWsT I O#'L.'#'L.'#'L.'!%K%<W<Wr&rWc#(Kt}|jtj|j |j |j |||j|j|jyw)aUtility to build text content streams for variable text fields. Example: .. code-block:: python with _text_stream_builder(da) as cs: # Make calls against cs, e.g.: cs.show_text(b'some text') ... # Now cs is complete. (Make sure you are outside the context manager; additional # operations are added once the context manager closes.) N) rbegin_marked_contentrTxpush begin_textextendend_textrend_marked_content)r[content_builders r$rZrZst +,O((1  2 &&(sBBc>|j}|j}t|jd||jxs tdz}|j |j xs||j} |j|}t|jD]\} } | dk7r|jtd} g} | jD]w} t|j| |}| |z|z|kDr6|jdj| |j|} | g} _| j!| | ||zz } y| s|jdj| y#t$r|jdd}YwxYw)aLay out the given text, wrapping at the edges of the bounding box. This layout algorithm is incomplete and somewhat rudimentary, but should produce acceptable results for most common use cases. Known issues: * Does not respect field-defined alignment (quadding) and spacing. * The text may overflow out the bottom of the box. We don't try to prevent this currently, though a correct implementation would do so if scrolling was disabled. * Words which are longer than the box width may overflow out the right side. * Does not allow line breaks other than at ' ' or '\n' characters. * Only ASCII, WinAnsi, and MacRoman encodings are supported.  rasciirerrors N)r]rar text_widthrzset_text_leadingr_widthencodeNotImplementedErrorr splitlinesmove_cursor_new_linesplit show_textjoinappend)contenttextrgrhr]rarzr encoded_textlinenoline line_width line_wordswordword_lens r$rere s$ <Y? JJE>{{4( ","9"9";<5  Q;  ( ( *%aj "$ JJL 6DttY?@HL(83e;!!$))J"78,,.% "V !!$'lX55  6    dii 3 4)5 >{{79{= >s:E<<FFc|j}|j}|j}t||z }t|j ||} g} td} |D]R} |j | } |j| | z dz }| j| |z| j| |} T|j| y#t $r| j dd} YnwxYw)a\Lay out text, spacing characters evenly according to comb size. This layout algorithm is incomplete and somewhat rudimentary, but should produce acceptable results for most common use cases. Known issues: * Does not respect field-defined alignment (quadding). * Only ASCII, WinAnsi, and MacRoman encodings are supported. rrrrr5N) r]rarr convert_width_reverserrunscaled_char_widthrshow_text_with_kerning)rrrgrhrr]rar comb_size comb_size_gsparts last_widthchar encoded_char space_neededs r$rmrmEs" <MQRR  Z,./ \"!  "#G""E*# B ;;wy;AL Bs!CC! C!cL|j|jddd||S)z-Convert a content stream into a Form XObject.XObjectr9rG)TypeSubtypeFormTypeBBox Resources)rbuild)rBrhrrus r$rsrsks2 ??     r&)rBrrtr rYr )r[rx)rrrrlrgrWrhr) rrrrlrgrWrhrrz int | Decimal)rBrrhrrrrur)>r5 __future__rloggingabcrrcollections.abcrr contextlibr dataclassesr decimalr typingr pikepdfr r rrrrrrrrrrrrpikepdf.canvasrr getLoggerr2rlistrr9rnr`rbrcrrergrrjr@rJrRrTrUrfrWrZrermrsrpr&r$rs2"#/%! <g!==.DDN??>ZG ZGz%,M%,TL%}L%^+)+)\mlI-lI^4646nN ]N bAA0%-'@%-P)(H)d@8@< *  GWGW GWT))<75 !75),757>75FO75t#+ !#+ #+#+  #+  #+L    (< IS r&