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369 lines (327 loc) · 14.5 KB
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"""
***************************************************************************
ProcessingConfig.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
import os
import tempfile
from qgis.PyQt.QtCore import QCoreApplication, QObject, pyqtSignal
from qgis.core import (NULL,
QgsApplication,
QgsSettings,
QgsVectorFileWriter,
QgsRasterFileWriter,
QgsProcessingUtils)
from processing.tools.system import defaultOutputFolder
import processing.tools.dataobjects
from multiprocessing import cpu_count
class SettingsWatcher(QObject):
settingsChanged = pyqtSignal()
settingsWatcher = SettingsWatcher()
class ProcessingConfig:
OUTPUT_FOLDER = 'OUTPUTS_FOLDER'
RASTER_STYLE = 'RASTER_STYLE'
VECTOR_POINT_STYLE = 'VECTOR_POINT_STYLE'
VECTOR_LINE_STYLE = 'VECTOR_LINE_STYLE'
VECTOR_POLYGON_STYLE = 'VECTOR_POLYGON_STYLE'
FILTER_INVALID_GEOMETRIES = 'FILTER_INVALID_GEOMETRIES'
PREFER_FILENAME_AS_LAYER_NAME = 'prefer-filename-as-layer-name'
KEEP_DIALOG_OPEN = 'KEEP_DIALOG_OPEN'
PRE_EXECUTION_SCRIPT = 'PRE_EXECUTION_SCRIPT'
POST_EXECUTION_SCRIPT = 'POST_EXECUTION_SCRIPT'
SHOW_CRS_DEF = 'SHOW_CRS_DEF'
WARN_UNMATCHING_CRS = 'WARN_UNMATCHING_CRS'
SHOW_PROVIDERS_TOOLTIP = 'SHOW_PROVIDERS_TOOLTIP'
SHOW_ALGORITHMS_KNOWN_ISSUES = 'SHOW_ALGORITHMS_KNOWN_ISSUES'
MAX_THREADS = 'MAX_THREADS'
DEFAULT_OUTPUT_RASTER_LAYER_EXT = 'default-output-raster-layer-ext'
DEFAULT_OUTPUT_VECTOR_LAYER_EXT = 'default-output-vector-layer-ext'
TEMP_PATH = 'temp-path'
RESULTS_GROUP_NAME = 'RESULTS_GROUP_NAME'
VECTOR_FEATURE_COUNT = 'VECTOR_FEATURE_COUNT'
settings = {}
settingIcons = {}
@staticmethod
def initialize():
icon = QgsApplication.getThemeIcon("/processingAlgorithm.svg")
ProcessingConfig.settingIcons['General'] = icon
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.KEEP_DIALOG_OPEN,
ProcessingConfig.tr('Keep dialog open after running an algorithm'), True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.PREFER_FILENAME_AS_LAYER_NAME,
ProcessingConfig.tr('Prefer output filename for layer names'), True,
hasSettingEntry=True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.SHOW_PROVIDERS_TOOLTIP,
ProcessingConfig.tr('Show tooltip when there are disabled providers'), True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.OUTPUT_FOLDER,
ProcessingConfig.tr('Output folder'), defaultOutputFolder(),
valuetype=Setting.FOLDER))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.SHOW_CRS_DEF,
ProcessingConfig.tr('Show layer CRS definition in selection boxes'), True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.WARN_UNMATCHING_CRS,
ProcessingConfig.tr("Warn before executing if parameter CRS's do not match"), True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES,
ProcessingConfig.tr("Show algorithms with known issues"), False))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.RASTER_STYLE,
ProcessingConfig.tr('Style for raster layers'), '',
valuetype=Setting.FILE))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.VECTOR_POINT_STYLE,
ProcessingConfig.tr('Style for point layers'), '',
valuetype=Setting.FILE))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.VECTOR_LINE_STYLE,
ProcessingConfig.tr('Style for line layers'), '',
valuetype=Setting.FILE))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.VECTOR_POLYGON_STYLE,
ProcessingConfig.tr('Style for polygon layers'), '',
valuetype=Setting.FILE))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.PRE_EXECUTION_SCRIPT,
ProcessingConfig.tr('Pre-execution script'), '',
valuetype=Setting.FILE))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.POST_EXECUTION_SCRIPT,
ProcessingConfig.tr('Post-execution script'), '',
valuetype=Setting.FILE))
invalidFeaturesOptions = [ProcessingConfig.tr('Do not filter (better performance)'),
ProcessingConfig.tr('Skip (ignore) features with invalid geometries'),
ProcessingConfig.tr('Stop algorithm execution when a geometry is invalid')]
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.FILTER_INVALID_GEOMETRIES,
ProcessingConfig.tr('Invalid features filtering'),
invalidFeaturesOptions[2],
valuetype=Setting.SELECTION,
options=invalidFeaturesOptions))
threads = QgsApplication.maxThreads() # if user specified limit for rendering, lets keep that as default here, otherwise max
threads = cpu_count() if threads == -1 else threads # if unset, maxThreads() returns -1
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.MAX_THREADS,
ProcessingConfig.tr('Max Threads'), threads,
valuetype=Setting.INT))
extensions = QgsVectorFileWriter.supportedFormatExtensions()
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.DEFAULT_OUTPUT_VECTOR_LAYER_EXT,
ProcessingConfig.tr('Default output vector layer extension'),
QgsVectorFileWriter.supportedFormatExtensions()[0],
valuetype=Setting.SELECTION,
options=extensions,
hasSettingEntry=True))
extensions = QgsRasterFileWriter.supportedFormatExtensions()
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.DEFAULT_OUTPUT_RASTER_LAYER_EXT,
ProcessingConfig.tr('Default output raster layer extension'),
'tif',
valuetype=Setting.SELECTION,
options=extensions,
hasSettingEntry=True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.TEMP_PATH,
ProcessingConfig.tr('Override temporary output folder path'), None,
valuetype=Setting.FOLDER,
placeholder=ProcessingConfig.tr('Leave blank for default'),
hasSettingEntry=True))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.RESULTS_GROUP_NAME,
ProcessingConfig.tr("Results group name"),
"",
valuetype=Setting.STRING,
placeholder=ProcessingConfig.tr("Leave blank to avoid loading results in a predetermined group")
))
ProcessingConfig.addSetting(Setting(
ProcessingConfig.tr('General'),
ProcessingConfig.VECTOR_FEATURE_COUNT,
ProcessingConfig.tr('Show feature count for output vector layers'), False))
@staticmethod
def setGroupIcon(group, icon):
ProcessingConfig.settingIcons[group] = icon
@staticmethod
def getGroupIcon(group):
if group == ProcessingConfig.tr('General'):
return QgsApplication.getThemeIcon("/processingAlgorithm.svg")
if group in ProcessingConfig.settingIcons:
return ProcessingConfig.settingIcons[group]
else:
return QgsApplication.getThemeIcon("/processingAlgorithm.svg")
@staticmethod
def addSetting(setting):
ProcessingConfig.settings[setting.name] = setting
@staticmethod
def removeSetting(name):
del ProcessingConfig.settings[name]
@staticmethod
def getSettings():
'''Return settings as a dict with group names as keys and lists of settings as values'''
settings = {}
for setting in list(ProcessingConfig.settings.values()):
if setting.group not in settings:
group = []
settings[setting.group] = group
else:
group = settings[setting.group]
group.append(setting)
return settings
@staticmethod
def readSettings():
for setting in list(ProcessingConfig.settings.values()):
setting.read()
@staticmethod
def getSetting(name, readable=False):
if name not in list(ProcessingConfig.settings.keys()):
return None
v = ProcessingConfig.settings[name].value
try:
if v == NULL:
v = None
except:
pass
if ProcessingConfig.settings[name].valuetype != Setting.SELECTION:
return v
if readable:
return v
return ProcessingConfig.settings[name].options.index(v)
@staticmethod
def setSettingValue(name, value):
if name in list(ProcessingConfig.settings.keys()):
if ProcessingConfig.settings[name].valuetype == Setting.SELECTION:
ProcessingConfig.settings[name].setValue(ProcessingConfig.settings[name].options[value])
else:
ProcessingConfig.settings[name].setValue(value)
ProcessingConfig.settings[name].save()
@staticmethod
def tr(string, context=''):
if context == '':
context = 'ProcessingConfig'
return QCoreApplication.translate(context, string)
class Setting:
"""A simple config parameter that will appear on the config dialog.
"""
STRING = 0
FILE = 1
FOLDER = 2
SELECTION = 3
FLOAT = 4
INT = 5
MULTIPLE_FOLDERS = 6
def __init__(self, group, name, description, default, hidden=False, valuetype=None,
validator=None, options=None, placeholder="", hasSettingEntry=False):
"""
hasSettingEntry is true if the given setting is part of QgsSettingsRegistry entries
"""
self.group = group
self.name = name
self.qname = ("qgis/configuration/" if hasSettingEntry else "Processing/Configuration/") + self.name
self.description = description
self.default = default
self.hidden = hidden
self.valuetype = valuetype
self.options = options
self.placeholder = placeholder
if self.valuetype is None:
if isinstance(default, int):
self.valuetype = self.INT
elif isinstance(default, float):
self.valuetype = self.FLOAT
if validator is None:
if self.valuetype == self.FLOAT:
def checkFloat(v):
try:
float(v)
except ValueError:
raise ValueError(self.tr('Wrong parameter value:\n{0}').format(v))
validator = checkFloat
elif self.valuetype == self.INT:
def checkInt(v):
try:
int(v)
except ValueError:
raise ValueError(self.tr('Wrong parameter value:\n{0}').format(v))
validator = checkInt
elif self.valuetype in [self.FILE, self.FOLDER]:
def checkFileOrFolder(v):
if v and not os.path.exists(v):
raise ValueError(self.tr('Specified path does not exist:\n{0}').format(v))
validator = checkFileOrFolder
elif self.valuetype == self.MULTIPLE_FOLDERS:
def checkMultipleFolders(v):
folders = v.split(';')
for f in folders:
if f and not os.path.exists(f):
raise ValueError(self.tr('Specified path does not exist:\n{0}').format(f))
validator = checkMultipleFolders
else:
def validator(x):
return True
self.validator = validator
self.value = default
def setValue(self, value):
self.validator(value)
self.value = value
def read(self, qsettings=None):
if not qsettings:
qsettings = QgsSettings()
value = qsettings.value(self.qname, None)
if value is not None:
if isinstance(self.value, bool):
value = str(value).lower() == str(True).lower()
if self.valuetype == self.SELECTION:
try:
self.value = self.options[int(value)]
except:
self.value = self.options[0]
else:
self.value = value
def save(self, qsettings=None):
if not qsettings:
qsettings = QgsSettings()
if self.valuetype == self.SELECTION:
qsettings.setValue(self.qname, self.options.index(self.value))
else:
qsettings.setValue(self.qname, self.value)
def __str__(self):
return self.name + '=' + str(self.value)
def tr(self, string, context=''):
if context == '':
context = 'ProcessingConfig'
return QCoreApplication.translate(context, string)