o ʷ6i@s:ddlmZddlmZddlmZmZGdddZdS))settings)toint) parse_crop parse_cropboxc@seZdZdZddZddZddZd@d d Zd d Zd dZ ddZ ddZ ddZ ddZ ddZddZddZddZdd Zd!d"Zd#d$Zd%d&Zd'd(Zd)d*Zd+d,Zd-d.Zd/d0Zd1d2Zd3d4ZdAd6d7Zd8d9Zd:d;Zdd?Z!dS)B EngineBasez7 ABC for Thumbnail engines, methods are static cCs||||}||||}||||}|||}||||}||||}||||}||||}||||}|S)zY Processing conductor, returns the thumbnail as an image engine instance ) cropbox orientation colorspace remove_borderscalecroproundedblurpaddingselfimagegeometryoptionsr`/var/www/hoanhtaovolam_webdjango/env/lib/python3.10/site-packages/sorl/thumbnail/engines/base.pycreate s zEngineBase.createc Cs2|d}|s|St|\}}}}||||||S)z* Wrapper for ``_cropbox`` r)r_cropbox) rrrrrxyx2y2rrrrs zEngineBase.cropboxcCs"|dtjr ||Sd|_|S)z. Wrapper for ``_orientation`` rT)getrTHUMBNAIL_ORIENTATION _orientation reorientedrrrrr$s zEngineBase.orientationNcCs2|pi}t|d}|dtjr|s||SdS)Nr rF)hasattrrrr_flip_dimensions)rrrrr rrrflip_dimensions-s   zEngineBase.flip_dimensionscCs|d}|||S)z- Wrapper for ``_colorspace`` r ) _colorspace)rrrrr rrrr 4s zEngineBase.colorspacecCs,|ddr||\}}||||}|S)Nr F)rget_image_size_remove_border)rrrx_imagey_imagerrrr ;s zEngineBase.remove_bordercCs4|d}|d||d|f}|rt|St|S)Nr r)maxmin)rr'r(rrr factorsrrr_calculate_scaling_factorCsz$EngineBase._calculate_scaling_factorc Csv|d}tt||\}}||r||}}|||||}|dks&|r9t||}t||} |||| }|S)z( Wrapper for ``_scale`` upscaler))mapfloatr%r#r-r_scale) rrrrr.r'r(factorwidthheightrrrr Hs     zEngineBase.scalec Cs|d}||\}}|r|dkr|S|dkr$|||d|d||St||dt||df}t|||f|\}}|||d|d||S)z' Wrapper for ``_crop`` r noopsmartrr))r% _entropy_cropr+r_crop) rrrrr r'r(x_offsety_offsetrrrr Ys zEngineBase.cropcCs |d}|s|S||t|S)z* Wrapper for ``_rounded`` r )_roundedint)rrrrrrrrr lszEngineBase.roundedcCs$|dr||t|dS|S)z' Wrapper for ``_blur`` r)r_blurr<rrrrrus zEngineBase.blurcCs*|dr|||kr||||S|S)z* Wrapper for ``_padding`` r)rr%_paddingrrrrr}szEngineBase.paddingc CsL|d}|d}|di}|dtj}|j|||||d}||dS)z( Wrapper for ``_write`` formatquality image_info progressive)rBrCN)rrTHUMBNAIL_PROGRESSIVE _get_raw_datawrite) rrr thumbnailformat_rArBrCraw_datarrrrFs zEngineBase.writecCsdS)zCSome backends need to manually cleanup after thumbnails are createdNrrrrrrcleanupszEngineBase.cleanupc Cs^|d}|rt|\}}}}||}||}n||\}}t||}||r-d|}|S)zl Calculates the image ratio. If cropbox option is used, the ratio may have changed. rg?)rr%r0r#) rrrrrrrrratiorrrget_image_ratios   zEngineBase.get_image_ratiocCsiS)z; Returns metadata of an ImageFile instance rrJrrrget_image_infozEngineBase.get_image_infocCt)zN Returns the backend image objects from an ImageFile instance NotImplementedError)rsourcerrr get_imagezEngineBase.get_imagecCrP)z? Returns the image width and height as a tuple rQrJrrrr%rUzEngineBase.get_image_sizecCrP)zE Checks if the supplied raw data is valid image data rQ)rrIrrris_valid_imagerUzEngineBase.is_valid_imagecCs|S)zP Read orientation exif data and orientate the image accordingly rrJrrrrrOzEngineBase._orientationcCrP)z `Valid colorspaces `_. Backends need to implement the following:: RGB, GRAY rQ)rrr rrrr$szEngineBase._colorspacecCrP)z. Remove borders around images rQ)rr image_width image_heightrrrr&rUzEngineBase._remove_bordercCrP)zi Crop the image to the correct aspect ratio by removing the lowest entropy parts rQ)rrgeometry_widthgeometry_heightrWrXrrrr7zEngineBase._entropy_cropcCrP)z0 Does the resizing of the image rQ)rrr3r4rrrr1rUzEngineBase._scalecCrP)z! Crops the image rQ)rrr3r4r9r:rrrr8rUzEngineBase._cropFcCrP)zu Gets raw data given the image, format and quality. This method is called from :meth:`write` rQ)rrrHrArBrCrrrrEr[zEngineBase._get_raw_datacCrP)z Pads the image rQrrrrr?rUzEngineBase._paddingcCrPNrQ)rrrrrrrrrrzEngineBase._cropboxcCrPr\rQ)rrr=rrrr;r]zEngineBase._roundedcCrPr\rQ)rrradiusrrrr>r]zEngineBase._blur)NN)NF)"__name__ __module__ __qualname____doc__rrrr#r r r-r r r rrrFrKrMrNrTr%rVrr$r&r7r1r8rEr?rr;r>rrrrrs@     rN)sorl.thumbnail.confrsorl.thumbnail.helpersrsorl.thumbnail.parsersrrrrrrrs