Cura/plugins/UCPWriter/UCPWriter.py
2018-01-25 17:14:32 +01:00

69 lines
3.0 KiB
Python

import zipfile
from io import StringIO
from UM.Resources import Resources
from UM.Mesh.MeshWriter import MeshWriter
from UM.Logger import Logger
from UM.PluginRegistry import PluginRegistry
MYPY = False
try:
if not MYPY:
import xml.etree.cElementTree as ET
except ImportError:
Logger.log("w", "Unable to load cElementTree, switching to slower version")
import xml.etree.ElementTree as ET
class UCPWriter(MeshWriter):
def __init__(self):
super().__init__()
self._namespaces = {
"content-types": "http://schemas.openxmlformats.org/package/2006/content-types",
"relationships": "http://schemas.openxmlformats.org/package/2006/relationships",
}
def write(self, stream, nodes, mode = MeshWriter.OutputMode.BinaryMode):
self._archive = None # Reset archive
archive = zipfile.ZipFile(stream, "w", compression=zipfile.ZIP_DEFLATED)
gcode_file = zipfile.ZipInfo("3D/model.gcode")
gcode_file.compress_type = zipfile.ZIP_DEFLATED
# Create content types file
content_types_file = zipfile.ZipInfo("[Content_Types].xml")
content_types_file.compress_type = zipfile.ZIP_DEFLATED
content_types = ET.Element("Types", xmlns=self._namespaces["content-types"])
rels_type = ET.SubElement(content_types, "Default", Extension="rels",
ContentType="application/vnd.openxmlformats-package.relationships+xml")
gcode_type = ET.SubElement(content_types, "Default", Extension="gcode",
ContentType="text/x-gcode")
image_type = ET.SubElement(content_types, "Default", Extension="png",
ContentType="image/png")
# Create _rels/.rels file
relations_file = zipfile.ZipInfo("_rels/.rels")
relations_file.compress_type = zipfile.ZIP_DEFLATED
relations_element = ET.Element("Relationships", xmlns=self._namespaces["relationships"])
thumbnail_relation_element = ET.SubElement(relations_element, "Relationship", Target="/Metadata/thumbnail.png", Id="rel0",
Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail")
model_relation_element = ET.SubElement(relations_element, "Relationship", Target="/3D/model.gcode",
Id="rel1",
Type="http://schemas.ultimaker.org/package/2018/relationships/gcode")
gcode_string = StringIO()
PluginRegistry.getInstance().getPluginObject("GCodeWriter").write(gcode_string, None)
archive.write(Resources.getPath(Resources.Images, "cura-icon.png"), "Metadata/thumbnail.png")
archive.writestr(gcode_file, gcode_string.getvalue())
archive.writestr(content_types_file, b'<?xml version="1.0" encoding="UTF-8"?> \n' + ET.tostring(content_types))
archive.writestr(relations_file, b'<?xml version="1.0" encoding="UTF-8"?> \n' + ET.tostring(relations_element))
archive.close()