def read(pngFilename):
yuml = '<<no yuml found>>'
pngFile = file(pngFilename, 'rb')
png.read_signature(pngFile)
for chunk in png.all_chunks(pngFile):
if chunk.chunk_type == 'iTXt':
chunk = png.iTXtChunk(chunk)
if chunk.keyword == 'yuml':
yuml = chunk.text
break
pngFile.close()
return yuml
def read(pngFilename):
yuml = "<<no yuml found>>"
pngFile = file(pngFilename, "rb")
png.read_signature(pngFile)
for chunk in png.all_chunks(pngFile):
if chunk.chunk_type == "iTXt":
chunk = png.iTXtChunk(chunk)
if chunk.keyword == "yuml":
yuml = chunk.text
break
pngFile.close()
return yuml
def read(pngFilename):
yuml = '<<no yuml found>>'
pngFile = file(pngFilename, 'rb')
png.read_signature(pngFile)
for chunk in png.all_chunks(pngFile):
if chunk.chunk_type == 'iTXt':
chunk = png.iTXtChunk(chunk)
if chunk.keyword == 'yuml':
yuml = chunk.text
break
pngFile.close()
return yuml
def add_yuml_to_png(yuml, in_stream, out_stream):
signature = png.read_signature(in_stream)
out_stream.write(signature)
for chunk in png.all_chunks(in_stream):
if chunk.chunk_type == 'IEND':
break
chunk.write(out_stream)
itxt_chunk = png.iTXtChunk.create('yuml', yuml)
itxt_chunk.write(out_stream)
# write the IEND chunk
chunk.write(out_stream)
def add_yuml_to_png(yuml, in_stream, out_stream):
signature = png.read_signature(in_stream)
out_stream.write(signature)
for chunk in png.all_chunks(in_stream):
if chunk.chunk_type == 'IEND':
break
chunk.write(out_stream)
itxt_chunk = png.iTXtChunk.create('yuml', yuml)
itxt_chunk.write(out_stream)
# write the IEND chunk
chunk.write(out_stream)
