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37d1c0be36
Currently this validator can't be used in QML due to a PyQt bug. I plan to call the validator manually upon receiving a signal that the text changed in a text box. Contributes to issue CURA-2692.
33 lines
No EOL
1.5 KiB
Python
33 lines
No EOL
1.5 KiB
Python
# Copyright (c) 2016 Ultimaker B.V.
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# Cura is released under the terms of the AGPLv3 or higher.
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import UM.Resources
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import UM.Settings.ContainerRegistry
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import UM.Settings.InstanceContainer
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from PyQt5.QtGui import QValidator
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import os #For statvfs.
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import urllib #To escape machine names for how they're saved to file.
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## Are machine names valid?
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#
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# Performs checks based on the length of the name.
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class MachineNameValidator(QValidator):
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## Check if a specified machine name is allowed.
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#
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# \param name The machine name to check.
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# \param position The current position of the cursor in the text box.
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# \return ``QValidator.Invalid`` if it's disallowed, or
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# ``QValidator.Acceptable`` if it's allowed.
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def validate(self, name, position):
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#Check for file name length of the current settings container (which is the longest file we're saving with the name).
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try:
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filename_max_length = os.statvfs(UM.Resources.getDataStoragePath())
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except AttributeError: #Doesn't support statvfs. Probably because it's not a Unix system.
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filename_max_length = 255 #Assume it's Windows on NTFS.
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escaped_name = urllib.parse.quote_plus(name)
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current_settings_filename = escaped_name + "_current_settings." + UM.Settings.ContainerRegistry.getMimeTypeForContainer(UM.Settings.InstanceContainer).preferredSuffix
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if current_settings_filename > filename_max_length:
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return QValidator.Invalid
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return QValidator.Acceptable #All checks succeeded. |