QGIS/python/plugins/processing/script/ScriptAlgorithmProvider.py
Bas Couwenberg 2628c480c5 Don't include revision in sources.
Prevent changes to files that weren't changed between releases.
This eases review of the changes between releases significantly.
2019-05-17 16:47:47 +02:00

125 lines
5.0 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
ScriptAlgorithmProvider.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
from qgis.core import (Qgis,
QgsMessageLog,
QgsApplication,
QgsProcessingProvider)
from processing.core.ProcessingConfig import ProcessingConfig, Setting
from processing.gui.ProviderActions import (ProviderActions,
ProviderContextMenuActions)
from processing.script.AddScriptFromFileAction import AddScriptFromFileAction
from processing.script.CreateNewScriptAction import CreateNewScriptAction
from processing.script.AddScriptFromTemplateAction import AddScriptFromTemplateAction
from processing.script.DeleteScriptAction import DeleteScriptAction
from processing.script.EditScriptAction import EditScriptAction
from processing.script.OpenScriptFromFileAction import OpenScriptFromFileAction
from processing.script import ScriptUtils
from processing.tools.system import userFolder
class ScriptAlgorithmProvider(QgsProcessingProvider):
def __init__(self):
super().__init__()
self.algs = []
self.folder_algorithms = []
self.actions = [CreateNewScriptAction(),
AddScriptFromTemplateAction(),
OpenScriptFromFileAction(),
AddScriptFromFileAction()
]
self.contextMenuActions = [EditScriptAction(),
DeleteScriptAction()]
def load(self):
ProcessingConfig.settingIcons[self.name()] = self.icon()
ProcessingConfig.addSetting(Setting(self.name(),
ScriptUtils.SCRIPTS_FOLDERS,
self.tr("Scripts folder(s)"),
ScriptUtils.defaultScriptsFolder(),
valuetype=Setting.MULTIPLE_FOLDERS))
ProviderActions.registerProviderActions(self, self.actions)
ProviderContextMenuActions.registerProviderContextMenuActions(self.contextMenuActions)
ProcessingConfig.readSettings()
self.refreshAlgorithms()
return True
def unload(self):
ProcessingConfig.removeSetting(ScriptUtils.SCRIPTS_FOLDERS)
ProviderActions.deregisterProviderActions(self)
ProviderContextMenuActions.deregisterProviderContextMenuActions(self.contextMenuActions)
def icon(self):
return QgsApplication.getThemeIcon("/processingScript.svg")
def svgIconPath(self):
return QgsApplication.iconPath("processingScript.svg")
def id(self):
return "script"
def name(self):
return self.tr("Scripts")
def supportsNonFileBasedOutput(self):
# TODO - this may not be strictly true. We probably need a way for scripts
# to indicate whether individual outputs support non-file based outputs,
# but for now allow it. At best we expose nice features to users, at worst
# they'll get an error if they use them with incompatible outputs...
return True
def loadAlgorithms(self):
self.algs = []
folders = ScriptUtils.scriptsFolders()
# always add default script folder to the list
defaultScriptFolder = ScriptUtils.defaultScriptsFolder()
if defaultScriptFolder not in folders:
folders.append(defaultScriptFolder)
# load all scripts
for folder in folders:
folder = ScriptUtils.resetScriptFolder(folder)
if not folder:
continue
items = [f for f in os.listdir(folder) if os.path.isfile(os.path.join(folder, f))]
for entry in items:
if entry.lower().endswith(".py"):
moduleName = os.path.splitext(os.path.basename(entry))[0]
filePath = os.path.abspath(os.path.join(folder, entry))
alg = ScriptUtils.loadAlgorithm(moduleName, filePath)
if alg is not None:
self.algs.append(alg)
for a in self.algs:
self.addAlgorithm(a)