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# Copyright (c) 2021 Ultimaker B.V.
# Uranium is released under the terms of the LGPLv3 or higher.
from typing import Optional
from UM.FileHandler.FileHandler import FileHandler
from UM.Job import Job
from UM.Message import Message
from UM.Logger import Logger
import time
from UM.i18n import i18nCatalog
i18n_catalog = i18nCatalog("uranium")
class ReadFileJob(Job):
"""A Job subclass that performs file loading."""
def __init__(self, filename: str, handler: Optional[FileHandler] = None, add_to_recent_files: bool = True) -> None:
super().__init__()
self._filename = filename
self._handler = handler
self._loading_message = None # type: Optional[Message]
self._add_to_recent_files = add_to_recent_files
def getFileName(self):
return self._filename
def getAddToRecentFiles(self):
return self._add_to_recent_files
def run(self) -> None:
from UM.Mesh.MeshReader import MeshReader
if self._handler is None:
Logger.log("e", "FileHandler was not set.")
return None
reader = self._handler.getReaderForFile(self._filename)
if not reader:
result_message = Message(i18n_catalog.i18nc("@info:status Don't translate the XML tag <filename>!",
"Cannot open files of the type of <filename>{0}</filename>",
self._filename),
lifetime = 0,
title = i18n_catalog.i18nc("@info:title", "Invalid File"),
message_type = Message.MessageType.ERROR)
result_message.show()
return
# Give the plugin a chance to display a dialog before showing the loading UI
try:
pre_read_result = reader.preRead(self._filename)
except:
Logger.logException("e", "Failed to pre-read the file %s", self._filename)
pre_read_result = MeshReader.PreReadResult.failed
if pre_read_result != MeshReader.PreReadResult.accepted:
if pre_read_result == MeshReader.PreReadResult.failed:
result_message = Message(i18n_catalog.i18nc("@info:status Don't translate the XML tag <filename>!",
"Failed to load <filename>{0}</filename>. The file could be corrupt or inaccessible.",
self._filename),
lifetime = 0,
title = i18n_catalog.i18nc("@info:title", "Unable to Open File"),
message_type = Message.MessageType.ERROR)
result_message.show()
return
self._loading_message = Message(self._filename,
lifetime=0,
progress=0,
dismissable=False,
title = i18n_catalog.i18nc("@info:title", "Loading"))
self._loading_message.setProgress(-1)
self._loading_message.show()
Job.yieldThread() # Yield to any other thread that might want to do something else.
begin_time = time.time()
try:
self.setResult(self._handler.readerRead(reader, self._filename))
except:
Logger.logException("e", "Exception occurred while loading file %s", self._filename)
finally:
end_time = time.time()
Logger.log("d", "Loading file took %0.1f seconds", end_time - begin_time)
self._loading_message.hide()
if reader.emptyFileHintSet():
result_message = Message(i18n_catalog.i18nc("@info:status Don't translate the XML tag <filename>!",
"There where no models in <filename>{0}</filename>.",
self._filename),
lifetime = 0,
title = i18n_catalog.i18nc("@info:title", "No Models in File"),
message_type = Message.MessageType.WARNING)
result_message.show()
elif not self._result:
result_message = Message(i18n_catalog.i18nc("@info:status Don't translate the XML tag <filename>!",
"Failed to load <filename>{0}</filename>. The file could be corrupt, inaccessible or it did not contain any models.",
self._filename),
lifetime = 0,
title = i18n_catalog.i18nc("@info:title", "Unable to Open File"),
message_type = Message.MessageType.ERROR)
result_message.show()
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