def save(cls, diagram):
"""
This method save a file.
Returns:
* **Types** (:class:`boolean<boolean>`)
"""
parser = XMLParser()
parser.addTag('harpia')
parser.appendToTag('harpia', 'version', value=System.VERSION)
parser.appendToTag('harpia', 'zoom', value=diagram.zoom)
parser.appendToTag('harpia', 'language', value=diagram.language)
parser.appendToTag('harpia', 'blocks')
for block_id in diagram.blocks:
block_type = diagram.blocks[block_id].type
pos = diagram.blocks[block_id].get_position()
parser.appendToTag('blocks', 'block', type=block_type, id=block_id)
parser.appendToLastTag('block', 'position', x=pos[0], y=pos[1])
props = diagram.blocks[block_id].get_properties()
for prop in props:
parser.appendToLastTag('block',
'property',
key=str(prop["name"]),
value=str(prop["value"])
)
parser.appendToTag('harpia', 'connections')
for connector in diagram.connectors:
parser.appendToTag('connections', 'connection',
from_block=connector.source.id,
from_out=int(connector.source_port) + 1,
to_block=connector.sink.id,
to_in=int(connector.sink_port) + 1)
try:
save_file = open(str(diagram.file_name), "w")
save_file.write(parser.prettify())
save_file.close()
except IOError as e:
System.log(e.strerror)
return False, e.strerror
diagram.set_modified(False)
return True, "Success"
