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@@ -3,6 +3,42 @@
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from UM.Mesh.MeshReader import MeshReader
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+## A class that reads profile data from g-code files.
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+#
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+# It reads the profile data from g-code files and stores the profile as a new
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+# profile, and then immediately activates that profile.
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+# This class currently does not process the rest of the g-code in any way.
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class GCodeReader(MeshReader):
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+ ## Initialises the g-code reader as a mesh reader.
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+ def __init__(self):
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+ super().__init__()
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+
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+ ## Reads a g-code file, loading the profile from it.
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def read(self, file_name):
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- pass
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+ version = 1 #IF YOU CHANGE THIS FUNCTION IN A WAY THAT BREAKS REVERSE COMPATIBILITY, INCREMENT THIS VERSION NUMBER!
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+ prefix = ";SETTING_" + str(version) + " "
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+
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+ #Loading all settings from the file. They are all at the end, but Python has no reverse seek any more since Python3. TODO: Consider moving settings to the start?
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+ serialised = "" #Will be filled with the serialised profile.
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+ try:
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+ with open(file_name) as f:
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+ for line in f:
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+ if line.startswith(prefix):
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+ serialised += line[len(prefix):] #Remove the prefix from the line, and add it to the rest.
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+ except IOError as e:
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+ Logger.log("e", "Unable to open file %s for reading: %s", file_name, str(e))
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+
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+ #Unescape the serialised profile.
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+ escape_characters = { #Which special characters (keys) are replaced by what escape character (values).
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+ #Note: The keys are regex strings. Values are not.
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+ "\\\\": "\\", #The escape character.
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+ "\\n": "\n", #Newlines. They break off the comment.
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+ "\\r": "\r" #Carriage return. Windows users may need this for visualisation in their editors.
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+ }
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+ escape_characters = dict((re.escape(key), value) for key, value in escape_characters.items())
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+ pattern = re.compile("|".join(escape_characters.keys()))
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+ serialised = pattern.sub(lambda m: escape_characters[re.escape(m.group(0))], serialised) #Perform the replacement with a regular expression.
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+
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+ #Apply the changes to the current profile.
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+ profile = Application.getInstance().getMachineManager().getActiveProfile()
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+ profile.unserialise(serialised)
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Ghostkeeper