blob: cbbfb8f9869f97615d56a6be0c1a852940915195 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import gzip
from io import StringIO, BufferedIOBase #To write the g-code to a temporary buffer, and for typing.
from typing import cast, List
from UM.Logger import Logger
from UM.Mesh.MeshWriter import MeshWriter #The class we're extending/implementing.
from UM.PluginRegistry import PluginRegistry
from UM.Scene.SceneNode import SceneNode #For typing.
from UM.i18n import i18nCatalog
catalog = i18nCatalog("cura")
## A file writer that writes gzipped g-code.
#
# If you're zipping g-code, you might as well use gzip!
class GCodeGzWriter(MeshWriter):
def __init__(self) -> None:
super().__init__(add_to_recent_files = False)
## Writes the gzipped g-code to a stream.
#
# Note that even though the function accepts a collection of nodes, the
# entire scene is always written to the file since it is not possible to
# separate the g-code for just specific nodes.
#
# \param stream The stream to write the gzipped g-code to.
# \param nodes This is ignored.
# \param mode Additional information on what type of stream to use. This
# must always be binary mode.
# \return Whether the write was successful.
def write(self, stream: BufferedIOBase, nodes: List[SceneNode], mode = MeshWriter.OutputMode.BinaryMode) -> bool:
if mode != MeshWriter.OutputMode.BinaryMode:
Logger.log("e", "GCodeGzWriter does not support text mode.")
self.setInformation(catalog.i18nc("@error:not supported", "GCodeGzWriter does not support text mode."))
return False
#Get the g-code from the g-code writer.
gcode_textio = StringIO() #We have to convert the g-code into bytes.
gcode_writer = cast(MeshWriter, PluginRegistry.getInstance().getPluginObject("GCodeWriter"))
success = gcode_writer.write(gcode_textio, None)
if not success: #Writing the g-code failed. Then I can also not write the gzipped g-code.
self.setInformation(gcode_writer.getInformation())
return False
result = gzip.compress(gcode_textio.getvalue().encode("utf-8"))
stream.write(result)
return True
|
