U c@sddlZddlZddlmZddlmZmZmZmZm Z ddl m Z ddl m Z ddd d d d gZGd ddeZGdddeZddZGdd d ZGdd d ZGdd d eZGdd d eZdS)N)Enum)DictionaryObject NameObject PdfObject StreamObjectpdf_name)BoxConstraints) PdfFileReader ResourceTypeResourceManagementError PdfResources PdfContent RawContentImportedPdfPagec@sHeZdZdZedZedZedZedZedZ edZ edZ d S) r u| Enum listing resources that can be used as keys in a resource dictionary. See ISO 32000-1, § 7.8.3 Table 34. z /ExtGStatez /ColorSpacez/Patternz/Shadingz/XObjectz/Fontz /PropertiesN) __name__ __module__ __qualname____doc__rZ EXT_G_STATEZ COLOR_SPACEZPATTERNZSHADINGZXOBJECTZFONTZ PROPERTIESrr=/tmp/pip-unpacked-wheel-0kb_yl26/pyhanko/pdf_utils/content.pyr sc@seZdZdZdS)r z= Used to signal problems with resource dictionaries. N)rrrrrrrrr JscCs6|D](\}}||kr(td|d|||<q|S)NzResource with name z occurs in both dictionaries.)itemsr )Zdict1Zdict2kZv2rrr_res_merge_helperQs  rc@s<eZdZdZddZedddZeddd Zd d Z d S) r a8 Representation of a PDF resource dictionary. This class implements :meth:`__getitem__` with :class:`.ResourceType` keys for dynamic access to its attributes. To merge two instances of :class:`.PdfResources` into one another, the class overrides :meth:`__iadd__`, so you can write. .. code-block:: python res1 += res2 *Note:* Merging two resource dictionaries with conflicting resource names will produce a :class:`.ResourceManagementError`. *Note:* This class is currently only used for new resource dictionaries. cCs<t|_t|_t|_t|_t|_t|_t|_dSN)rZ ext_g_stateZ color_spacepatternZshadingxobjectfontZ propertiesselfrrr__init__nszPdfResources.__init__)itemcCst||jSr)getattrnamelower)rr!rrr __getitem__wszPdfResources.__getitem__returncs fdd}tdd|DS)zj Render this instance of :class:`.PdfResources` to an actual resource dictionary. c3s&tD]}|}|r|j|fVqdSr)r value)rvalrrr_gensz(PdfResources.as_pdf_object.._gencSsi|]\}}||qSrr).0rvrrr sz.PdfResources.as_pdf_object..)r)rr*rrr as_pdf_objectzs zPdfResources.as_pdf_objectcCs tD]}t||||q|S)a( Merge another resource dictionary into this one. :param other: Another instance of :class:`.PdfResources` :return: Always returns ``self`` :raises ResourceManagementError: Raised when there is a resource name conflict. )r r)rotherrrrr__iadd__s zPdfResources.__iadd__N) rrrrr r r%rr.r0rrrrr [s   c@s|eZdZdZdZdeedddZee e dddZ ed d d Z e ed d dZed ddZed ddZddZdS)rz Abstract representation of part of a PDF content stream. .. warning:: Whether :class:`.PdfContent` instances can be reused or not is left up to the subclasses. N) resourcesboxcCs"|pt|_|pt|_||_dSr)r _resourcesr r2writer)rr1r2r4rrrr s  zPdfContent.__init__)categoryr#r(cCs||j||<dS)a2Set a value in the resource dictionary associated with this content fragment. :param category: The resource category to which the resource belongs. :param name: The resource's (internal) name. :param value: The resource's value. Nr3)rr5r#r(rrr set_resources zPdfContent.set_resource)r1cCs|j|7_dS)zImport resources from another resource dictionary. :param resources: An instance of :class:`.PdfResources`. :raises ResourceManagementError: Raised when there is a resource name conflict. Nr6)rr1rrrimport_resourcesszPdfContent.import_resourcesr&cCs|jS)z} :return: The :class:`.PdfResources` instance associated with this content fragment. r6rrrrr1szPdfContent.resourcescCstdS)z< Compile the content to graphics operators. N)NotImplementedErrorrrrrrenderszPdfContent.rendercCs2ddlm}|}|||jj|jj|jdS)u Render the object to a form XObject to be referenced by another content stream. See ISO 32000-1, § 8.8. *Note:* Even if :attr:`writer` is set, the resulting form XObject will not be registered. This is left up to the caller. :return: A :class:`~.generic.StreamObject` instance representing the resulting form XObject. r)init_xobject_dictionary)command_streamZ box_widthZ box_heightr1)Zpyhanko.pdf_utils.writerr;r:r2widthheightr3r.)rr;r<rrras_form_xobjects zPdfContent.as_form_xobjectcCs ||_dS)z Override the currently registered writer object. :param writer: An instance of :class:`~.writer.BasePdfFileWriter`. N)r4)rr4rrr set_writerszPdfContent.set_writer)NNN)rrrrr4r r r r rrr7r8propertyr1bytesr:rr?r@rrrrrs"     cs:eZdZdZd eeedfdd ZedddZZ S) rz,Raw byte sequence to be used as PDF content.N)datar1r2cst||||_dSr)superr rC)rrCr1r2 __class__rrr szRawContent.__init__r&cCs|jSr)rCrrrrr:szRawContent.render)NN) rrrrrBr r r r: __classcell__rrrErrscs0eZdZdZdfdd ZedddZZS) rz,Import a page from another PDF file (lazily)rcs||_||_tdSr) file_namepage_ixrDr )rrHrIrErrr szImportedPdfPage.__init__r&c Csddlm}|j}t|jd}t|}|j||jd}W5QRXdtt j }||j j |d<|d\}}} } tt|| t|| d|_|d S) Nr)BasePdfFileWriterrb)rIs/Importasciiz/BBox)r=r>s Do)r4rJopenrHr Zimport_page_as_xobjectrIbinasciihexlifyuuidZuuid4rBr1rdecodeZ get_objectr absr2) rrJwinfrZxobj resource_namex1y1Zx2y2rrrr: s zImportedPdfPage.render)r)rrrrr rBr:rGrrrErrs)rNrPenumrZgenericrrrrrZlayoutr readerr __all__r ValueErrorr rr rrrrrrrs&    2 ;b