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Add call_on_qt_thread to UFPWriter.write()

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CURA-5555
This commit is contained in:
Lipu Fei 2018-08-29 17:33:51 +02:00
parent 8f5aa82bdb
commit 570d0715ed
1 changed files with 6 additions and 0 deletions
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6
plugins/UFPWriter/UFPWriter.py
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@ -13,6 +13,7 @@ from UM.PluginRegistry import PluginRegistry #To get the g-code writer.
from PyQt5.QtCore import QBuffer
from cura.Snapshot import Snapshot
from cura.Utils.Threading import call_on_qt_thread
from UM.i18n import i18nCatalog
catalog = i18nCatalog("cura")
@ -29,6 +30,11 @@ class UFPWriter(MeshWriter):
Logger.log("d", "Creating thumbnail image...")
self._snapshot = Snapshot.snapshot(width = 300, height = 300)
# This needs to be called on the main thread (Qt thread) because the serialization of material containers can
# trigger loading other containers. Because those loaded containers are QtObjects, they must be created on the
# Qt thread. The File read/write operations right now are executed on separated threads because they are scheduled
# by the Job class.
@call_on_qt_thread
def write(self, stream, nodes, mode = MeshWriter.OutputMode.BinaryMode):
archive = VirtualFile()
archive.openStream(stream, "application/x-ufp", OpenMode.WriteOnly)