Add thumbnail support for krita files
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@ -761,7 +761,7 @@ MIMES_THAT_MAY_HAVE_AUDIO = tuple( list( MIMES_THAT_DEFINITELY_HAVE_AUDIO ) + li
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ARCHIVES = { APPLICATION_ZIP, APPLICATION_HYDRUS_ENCRYPTED_ZIP, APPLICATION_RAR, APPLICATION_7Z }
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MIMES_WITH_THUMBNAILS = set( IMAGES ).union( ANIMATIONS ).union( VIDEO ).union( { APPLICATION_FLASH, APPLICATION_CLIP, APPLICATION_PSD } )
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MIMES_WITH_THUMBNAILS = set( IMAGES ).union( ANIMATIONS ).union( VIDEO ).union( { APPLICATION_FLASH, APPLICATION_CLIP, APPLICATION_PSD, APPLICATION_KRITA } )
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FILES_THAT_CAN_HAVE_ICC_PROFILE = { IMAGE_JPEG, IMAGE_PNG, IMAGE_GIF, IMAGE_TIFF }
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@ -4,6 +4,7 @@ import struct
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from hydrus.core import HydrusAudioHandling
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from hydrus.core import HydrusClipHandling
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from hydrus.core import HydrusKritaHandling
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from hydrus.core import HydrusConstants as HC
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from hydrus.core import HydrusData
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from hydrus.core import HydrusDocumentHandling
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@ -154,7 +155,28 @@ def GenerateThumbnailBytes( path, target_resolution, mime, duration, num_frames,
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HydrusTemp.CleanUpTempPath( os_file_handle, temp_path )
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elif mime == HC.APPLICATION_KRITA:
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( os_file_handle, temp_path ) = HydrusTemp.GetTempPath()
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try:
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HydrusKritaHandling.ExtractZippedImageToPath( path, temp_path )
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thumbnail_bytes = HydrusImageHandling.GenerateThumbnailBytesFromStaticImagePath( temp_path, target_resolution, HC.IMAGE_PNG, clip_rect = clip_rect )
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except Exception as e:
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thumb_path = os.path.join( HC.STATIC_DIR, 'krita.png' )
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thumbnail_bytes = HydrusImageHandling.GenerateThumbnailBytesFromStaticImagePath( thumb_path, target_resolution, HC.IMAGE_PNG, clip_rect = clip_rect )
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finally:
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HydrusTemp.CleanUpTempPath( os_file_handle, temp_path )
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elif mime == HC.APPLICATION_FLASH:
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( os_file_handle, temp_path ) = HydrusTemp.GetTempPath()
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@ -316,6 +338,10 @@ def GetFileInfo( path, mime = None, ok_to_look_for_hydrus_updates = False ):
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( ( width, height ), duration, num_frames ) = HydrusClipHandling.GetClipProperties( path )
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elif mime == HC.APPLICATION_KRITA:
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( width, height ) = HydrusKritaHandling.GetKraProperties( path )
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elif mime == HC.APPLICATION_FLASH:
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( ( width, height ), duration, num_frames ) = HydrusFlashHandling.GetFlashProperties( path )
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@ -0,0 +1,93 @@
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from hydrus.core import HydrusExceptions
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from hydrus.core import HydrusTemp
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import zipfile
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import re
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KRITA_FILE_THUMB = "preview.png"
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KRITA_FILE_MERGED = "mergedimage.png"
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def ExtractSingleFileFromZip( path_to_zip, filename_to_extract, extract_into_file_path ):
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with zipfile.ZipFile( path_to_zip ) as zip_handle:
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with zip_handle.open( filename_to_extract ) as reader:
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with open( extract_into_file_path, "wb" ) as writer:
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writer.write( reader.read() )
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def ExtractZippedImageToPath( path_to_zip, temp_path_file ):
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try:
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ExtractSingleFileFromZip( path_to_zip, KRITA_FILE_MERGED, temp_path_file )
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return
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except KeyError:
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pass
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try:
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ExtractSingleFileFromZip( path_to_zip, KRITA_FILE_THUMB, temp_path_file )
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except KeyError:
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raise HydrusExceptions.DamagedOrUnusualFileException( f'This krita file had no {KRITA_FILE_MERGED} or {KRITA_FILE_THUMB}, so no PNG thumb could be extracted!' )
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# TODO: animation and frame stuff which is also in the maindoc.xml
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def GetKraProperties( path ):
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( os_file_handle, maindoc_xml ) = HydrusTemp.GetTempPath()
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DOCUMENT_INFO_FILE = "maindoc.xml"
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# TODO: probably actually parse the xml instead of using regex
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FIND_KEY_VALUE = re.compile(r"([a-z\-\_]+)\s*=\s*['\"]([^'\"]+)", re.IGNORECASE)
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width = None
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height = None
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try:
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ExtractSingleFileFromZip( path, DOCUMENT_INFO_FILE, maindoc_xml )
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with open(maindoc_xml, "r") as reader:
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for line in reader:
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for match in FIND_KEY_VALUE.findall( line ):
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key, value = match
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if key == "width" and value.isdigit():
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width = int(value)
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if key == "height" and value.isdigit():
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height = int(value)
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if width is not None and height is not None:
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break
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except KeyError:
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raise HydrusExceptions.DamagedOrUnusualFileException( f'This krita file had no {DOCUMENT_INFO_FILE}, so no information could be extracted!' )
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finally:
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HydrusTemp.CleanUpTempPath( os_file_handle, maindoc_xml )
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return width, height
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