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956c155e8f
pep8 --ignore=E111,E128,E201,E202,E203,E211,E221,E222,E225,E226,E227,E231,E241,E261,E265,E272,E302,E303,E501,E701 \
--exclude="ui_*.py,debian/*,python/ext-libs/*" \
.
58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
import os
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import sys
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import glob
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from qgis.core import QgsApplication
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def load_user_expressions(path):
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"""
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Load all user expressions from the given paths
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"""
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#Loop all py files and import them
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modules = glob.glob(path + "/*.py")
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names = [os.path.basename(f)[:-3] for f in modules]
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for name in names:
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if name == "__init__":
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continue
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# As user expression functions should be registed with qgsfunction
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# just importing the file is enough to get it to load the functions into QGIS
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__import__("expressions.{0}".format(name), locals(), globals())
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userpythonhome = os.path.join(QgsApplication.qgisSettingsDirPath(), "python")
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expressionspath = os.path.join(userpythonhome, "expressions")
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startuppy = os.path.join(userpythonhome, "startup.py")
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sys.path.append(userpythonhome)
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# exec startup script
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if os.path.exists(startuppy):
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execfile(startuppy, locals(), globals())
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if not os.path.exists(expressionspath):
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os.makedirs(expressionspath)
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initfile = os.path.join(expressionspath, "__init__.py")
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if not os.path.exists(initfile):
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open(initfile, "w").close()
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import expressions
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expressions.load = load_user_expressions
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expressions.load(expressionspath)
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expressions.template = """\"\"\"
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Template function file. Define new functions using @qgsfunction.
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When using args="auto" you may define a new variable for each value for the function.
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feature and parent must always be the last args.
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To pass a any number of args into a function use args=-1 the first
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variable will then be a list of values.
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\"\"\"
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from qgis.core import *
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from qgis.gui import *
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@qgsfunction(args="auto", group='Custom')
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def func(value1, feature, parent):
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pass
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"""
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