def createDataConsumerFromPathName(path):
# Create a CFURL for the supplied file system path.
url = Cocoa.CFURLCreateWithFileSystemPath (None, path, Cocoa.kCFURLPOSIXPathStyle, False)
if url is None:
print("Couldn't create url!")
return None
# Create a Quartz data provider for the URL.
dataConsumer = Quartz.CGDataConsumerCreateWithURL(url)
if dataConsumer is None:
print("Couldn't create data consumer!")
return None
return dataConsumer
def isImageFile_(self, filePath):
isImageFile = False
uti = None
url = Cocoa.CFURLCreateWithFileSystemPath(None, filePath,
Cocoa.kCFURLPOSIXPathStyle,
False)
res, info = LaunchServices.LSCopyItemInfoForURL(
url,
LaunchServices.kLSRequestExtension
| LaunchServices.kLSRequestTypeCreator,
None,
)
if res == 0:
# Obtain the UTI using the file information.
# If there is a file extension, get the UTI.
if info[3] != None:
uti = LaunchServices.UTTypeCreatePreferredIdentifierForTag(
LaunchServices.kUTTagClassFilenameExtension,
info[3],
LaunchServices.kUTTypeData,
)
# No UTI yet
if uti is None:
# If there is an OSType, get the UTI.
typeString = LaunchServices.UTCreateStringForOSType(
info.filetype)
if typeString != None:
uti = LaunchServices.UTTypeCreatePreferredIdentifierForTag(
LaunchServices.kUTTagClassOSType,
typeString,
LaunchServices.kUTTypeData,
)
# Verify that this is a file that the ImageIO framework supports.
if uti is not None:
supportedTypes = Quartz.CGImageSourceCopyTypeIdentifiers()
for item in supportedTypes:
if LaunchServices.UTTypeConformsTo(uti, item):
isImageFile = True
break
return isImageFile