# -*- coding: utf-8 -*-
"""
***************************************************************************
ProcessingToolbox.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. *
* *
***************************************************************************
"""
from builtins import range
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from qgis.PyQt import uic
from qgis.PyQt.QtCore import Qt, QCoreApplication
from qgis.PyQt.QtWidgets import QMenu, QAction, QTreeWidgetItem, QLabel, QMessageBox
from qgis.utils import iface
from qgis.core import (QgsApplication,
QgsProcessingAlgorithm)
from processing.gui.Postprocessing import handleAlgorithmResults
from processing.core.Processing import Processing
from processing.core.ProcessingLog import ProcessingLog
from processing.core.ProcessingConfig import ProcessingConfig, settingsWatcher
from processing.gui.MessageDialog import MessageDialog
from processing.gui.AlgorithmDialog import AlgorithmDialog
from processing.gui.BatchAlgorithmDialog import BatchAlgorithmDialog
from processing.gui.EditRenderingStylesDialog import EditRenderingStylesDialog
from processing.gui.ConfigDialog import ConfigDialog
from processing.gui.MessageBarProgress import MessageBarProgress
from processing.gui.AlgorithmExecutor import execute
from processing.gui.ProviderActions import (ProviderActions,
ProviderContextMenuActions)
from processing.tools import dataobjects
pluginPath = os.path.split(os.path.dirname(__file__))[0]
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, 'ui', 'ProcessingToolbox.ui'))
class ProcessingToolbox(BASE, WIDGET):
ALG_ITEM = 'ALG_ITEM'
PROVIDER_ITEM = 'PROVIDER_ITEM'
GROUP_ITEM = 'GROUP_ITEM'
NAME_ROLE = Qt.UserRole
TAG_ROLE = Qt.UserRole + 1
TYPE_ROLE = Qt.UserRole + 2
def __init__(self):
super(ProcessingToolbox, self).__init__(None)
self.tipWasClosed = False
self.setupUi(self)
self.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.searchBox.textChanged.connect(self.textChanged)
self.algorithmTree.customContextMenuRequested.connect(
self.showPopupMenu)
self.algorithmTree.doubleClicked.connect(self.executeAlgorithm)
self.txtDisabled.setVisible(False)
self.txtTip.setVisible(self.disabledProviders())
self.txtDisabled.linkActivated.connect(self.showDisabled)
def openSettings(url):
if url == "close":
self.txtTip.setVisible(False)
self.tipWasClosed = True
else:
iface.showOptionsDialog(iface.mainWindow(), 'processingOptions')
self.txtTip.setVisible(self.disabledProviders())
self.txtTip.linkActivated.connect(openSettings)
if hasattr(self.searchBox, 'setPlaceholderText'):
self.searchBox.setPlaceholderText(self.tr('Search...'))
self.fillTree()
# connect to existing providers
for p in QgsApplication.processingRegistry().providers():
p.algorithmsLoaded.connect(self.updateProvider)
QgsApplication.processingRegistry().providerRemoved.connect(self.removeProvider)
QgsApplication.processingRegistry().providerAdded.connect(self.addProvider)
settingsWatcher.settingsChanged.connect(self.fillTree)
def showDisabled(self):
self.txtDisabled.setVisible(False)
for provider_id in self.disabledWithMatchingAlgs:
self.disabledProviderItems[provider_id].setHidden(False)
self.algorithmTree.expandAll()
def disabledProviders(self):
showTip = ProcessingConfig.getSetting(ProcessingConfig.SHOW_PROVIDERS_TOOLTIP)
if not showTip or self.tipWasClosed:
return False
for provider in QgsApplication.processingRegistry().providers():
if not provider.isActive():
return True
return False
def textChanged(self):
text = self.searchBox.text().strip(' ').lower()
for item in list(self.disabledProviderItems.values()):
item.setHidden(True)
self._filterItem(self.algorithmTree.invisibleRootItem(), [t for t in text.split(' ') if t])
if text:
self.algorithmTree.expandAll()
self.disabledWithMatchingAlgs = []
for provider in QgsApplication.processingRegistry().providers():
if not provider.isActive():
for alg in provider.algorithms():
if text in alg.name():
self.disabledWithMatchingAlgs.append(provider.id())
break
showTip = ProcessingConfig.getSetting(ProcessingConfig.SHOW_PROVIDERS_TOOLTIP)
if showTip:
self.txtDisabled.setVisible(bool(self.disabledWithMatchingAlgs))
else:
self.algorithmTree.collapseAll()
self.algorithmTree.invisibleRootItem().child(0).setExpanded(True)
self.txtDisabled.setVisible(False)
def _filterItem(self, item, text):
if (item.childCount() > 0):
show = False
for i in range(item.childCount()):
child = item.child(i)
showChild = self._filterItem(child, text)
show = (showChild or show) and item not in list(self.disabledProviderItems.values())
item.setHidden(not show)
return show
elif isinstance(item, (TreeAlgorithmItem, TreeActionItem)):
# hide if every part of text is not contained somewhere in either the item text or item user role
item_text = [item.text(0).lower(), item.data(0, ProcessingToolbox.NAME_ROLE).lower()]
if isinstance(item, TreeAlgorithmItem):
item_text.append(item.alg.id())
item_text.extend(item.data(0, ProcessingToolbox.TAG_ROLE))
hide = bool(text) and not all(
any(part in t for t in item_text)
for part in text)
item.setHidden(hide)
return not hide
else:
item.setHidden(True)
return False
def activateProvider(self, id):
provider = QgsApplication.processingRegistry().providerById(id)
if not provider.canBeActivated():
QMessageBox.warning(self, self.tr("Activate provider"),
self.tr("The provider has been activated, but it might need additional configuration."))
return
try:
# not part of the base class - only some providers have a setActive member
provider.setActive(True)
self.fillTree()
self.textChanged()
self.showDisabled()
except:
QMessageBox.warning(self, self.tr("Activate provider"),
self.tr("The provider could not be activated."))
def updateProvider(self):
provider = self.sender()
item = self._providerItem(provider.id())
if item is not None:
item.refresh()
item.sortChildren(0, Qt.AscendingOrder)
for i in range(item.childCount()):
item.child(i).sortChildren(0, Qt.AscendingOrder)
self.addRecentAlgorithms(True)
def removeProvider(self, provider_id):
item = self._providerItem(provider_id)
if item is not None:
self.algorithmTree.invisibleRootItem().removeChild(item)
def _providerItem(self, provider_id):
for i in range(self.algorithmTree.invisibleRootItem().childCount()):
child = self.algorithmTree.invisibleRootItem().child(i)
if isinstance(child, TreeProviderItem):
if child.provider.id() == provider_id:
return child
def showPopupMenu(self, point):
item = self.algorithmTree.itemAt(point)
popupmenu = QMenu()
if isinstance(item, TreeAlgorithmItem):
alg = item.alg
executeAction = QAction(self.tr('Execute'), self.algorithmTree)
executeAction.triggered.connect(self.executeAlgorithm)
popupmenu.addAction(executeAction)
if alg.flags() & QgsProcessingAlgorithm.FlagSupportsBatch:
executeBatchAction = QAction(
self.tr('Execute as batch process'),
self.algorithmTree)
executeBatchAction.triggered.connect(
self.executeAlgorithmAsBatchProcess)
popupmenu.addAction(executeBatchAction)
popupmenu.addSeparator()
editRenderingStylesAction = QAction(
self.tr('Edit rendering styles for outputs'),
self.algorithmTree)
editRenderingStylesAction.triggered.connect(
self.editRenderingStyles)
popupmenu.addAction(editRenderingStylesAction)
if isinstance(item, (TreeAlgorithmItem, TreeActionItem)):
data = item.alg if isinstance(item, TreeAlgorithmItem) else item.action
actions = ProviderContextMenuActions.actions
if len(actions) > 0:
popupmenu.addSeparator()
for action in actions:
action.setData(data, self)
if action.isEnabled():
contextMenuAction = QAction(action.name,
self.algorithmTree)
contextMenuAction.triggered.connect(action.execute)
popupmenu.addAction(contextMenuAction)
popupmenu.exec_(self.algorithmTree.mapToGlobal(point))
def editRenderingStyles(self):
item = self.algorithmTree.currentItem()
if isinstance(item, TreeAlgorithmItem):
alg = QgsApplication.processingRegistry().createAlgorithmById(item.alg.id())
dlg = EditRenderingStylesDialog(alg)
dlg.exec_()
def executeAlgorithmAsBatchProcess(self):
item = self.algorithmTree.currentItem()
if isinstance(item, TreeAlgorithmItem):
alg = QgsApplication.processingRegistry().createAlgorithmById(item.alg.id())
if alg:
dlg = BatchAlgorithmDialog(alg)
dlg.show()
dlg.exec_()
# have to manually delete the dialog - otherwise it's owned by the
# iface mainWindow and never deleted
dlg.deleteLater()
def executeAlgorithm(self):
item = self.algorithmTree.currentItem()
if isinstance(item, TreeAlgorithmItem):
alg = QgsApplication.processingRegistry().createAlgorithmById(item.alg.id())
if not alg:
return
ok, message = alg.canExecute()
if not ok:
dlg = MessageDialog()
dlg.setTitle(self.tr('Error executing algorithm'))
dlg.setMessage(
self.tr('<h3>This algorithm cannot '
'be run :-( </h3>\n{0}').format(message))
dlg.exec_()
return
if alg.countVisibleParameters() > 0:
dlg = alg.createCustomParametersWidget(self)
if not dlg:
dlg = AlgorithmDialog(alg)
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
dlg.exec_()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except:
pass
canvas.setMapTool(prevMapTool)
if dlg.executed:
showRecent = ProcessingConfig.getSetting(
ProcessingConfig.SHOW_RECENT_ALGORITHMS)
if showRecent:
self.addRecentAlgorithms(True)
# have to manually delete the dialog - otherwise it's owned by the
# iface mainWindow and never deleted
dlg.deleteLater()
else:
feedback = MessageBarProgress()
context = dataobjects.createContext(feedback)
parameters = {}
ret, results = execute(alg, parameters, context, feedback)
handleAlgorithmResults(alg, context, feedback)
feedback.close()
if isinstance(item, TreeActionItem):
action = item.action
action.setData(self)
action.execute()
def fillTree(self):
self.fillTreeUsingProviders()
self.addRecentAlgorithms(False)
def addRecentAlgorithms(self, updating):
showRecent = ProcessingConfig.getSetting(
ProcessingConfig.SHOW_RECENT_ALGORITHMS)
if showRecent:
recent = ProcessingLog.getRecentAlgorithms()
if len(recent) != 0:
found = False
if updating:
recentItem = self.algorithmTree.topLevelItem(0)
if recentItem.text(0) == self.tr('Recently used'):
treeWidget = recentItem.treeWidget()
treeWidget.takeTopLevelItem(
treeWidget.indexOfTopLevelItem(recentItem))
recentItem = QTreeWidgetItem()
recentItem.setText(0, self.tr('Recently used'))
for algname in recent:
alg = QgsApplication.processingRegistry().createAlgorithmById(algname)
if alg is not None:
algItem = TreeAlgorithmItem(alg)
recentItem.addChild(algItem)
found = True
if found:
self.algorithmTree.insertTopLevelItem(0, recentItem)
recentItem.setExpanded(True)
self.algorithmTree.setWordWrap(True)
def addProvider(self, provider_id):
provider = QgsApplication.processingRegistry().providerById(provider_id)
providerItem = TreeProviderItem(provider, self.algorithmTree, self)
if not provider.isActive():
providerItem.setHidden(True)
self.disabledProviderItems[provider.id()] = providerItem
for i in range(self.algorithmTree.invisibleRootItem().childCount()):
child = self.algorithmTree.invisibleRootItem().child(i)
if isinstance(child, TreeProviderItem):
if child.text(0) > providerItem.text(0):
break
self.algorithmTree.insertTopLevelItem(i, providerItem)
provider.algorithmsLoaded.connect(self.updateProvider)
def fillTreeUsingProviders(self):
self.algorithmTree.clear()
self.disabledProviderItems = {}
# TODO - replace with proper model for toolbox!
# first add qgis/native providers, since they create top level groups
for provider in QgsApplication.processingRegistry().providers():
if provider.id() in ('qgis', 'native'):
self.addAlgorithmsFromProvider(provider, self.algorithmTree.invisibleRootItem())
else:
continue
self.algorithmTree.sortItems(0, Qt.AscendingOrder)
for provider in QgsApplication.processingRegistry().providers():
if provider.id() in ('qgis', 'native'):
# already added
continue
else:
providerItem = TreeProviderItem(provider, self.algorithmTree, self)
if not provider.isActive():
providerItem.setHidden(True)
self.disabledProviderItems[provider.id()] = providerItem
# insert non-native providers at end of tree, alphabetically
for i in range(self.algorithmTree.invisibleRootItem().childCount()):
child = self.algorithmTree.invisibleRootItem().child(i)
if isinstance(child, TreeProviderItem):
if child.text(0) > providerItem.text(0):
break
self.algorithmTree.insertTopLevelItem(i + 1, providerItem)
def addAlgorithmsFromProvider(self, provider, parent):
groups = {}
count = 0
algs = provider.algorithms()
active = provider.isActive()
# Add algorithms
for alg in algs:
if alg.flags() & QgsProcessingAlgorithm.FlagHideFromToolbox:
continue
groupItem = None
if alg.group() in groups:
groupItem = groups[alg.group()]
else:
# check if group already exists
for i in range(parent.childCount()):
if parent.child(i).text(0) == alg.group():
groupItem = parent.child(i)
groups[alg.group()] = groupItem
break
if not groupItem:
groupItem = TreeGroupItem(alg.group())
if not active:
groupItem.setInactive()
if provider.id() in ('qgis', 'native'):
groupItem.setIcon(0, provider.icon())
groups[alg.group()] = groupItem
algItem = TreeAlgorithmItem(alg)
if not active:
algItem.setForeground(0, Qt.darkGray)
groupItem.addChild(algItem)
count += 1
if provider.id() in ProviderActions.actions:
actions = ProviderActions.actions[provider.id()]
for action in actions:
if action.group in groups:
groupItem = groups[action.group]
else:
groupItem = TreeGroupItem(action.group)
groups[action.group] = groupItem
algItem = TreeActionItem(action)
groupItem.addChild(algItem)
text = provider.name()
if not provider.id() in ('qgis', 'native'):
if not active:
def activateProvider():
self.activateProvider(provider.id())
label = QLabel(text + " <a href='%s'>Activate</a>")
label.setStyleSheet("QLabel {background-color: white; color: grey;}")
label.linkActivated.connect(activateProvider)
self.algorithmTree.setItemWidget(parent, 0, label)
else:
parent.setText(0, text)
for groupItem in list(groups.values()):
parent.addChild(groupItem)
if not provider.id() in ('qgis', 'native'):
parent.setHidden(parent.childCount() == 0)
class TreeAlgorithmItem(QTreeWidgetItem):
def __init__(self, alg):
QTreeWidgetItem.__init__(self)
self.alg = alg
icon = alg.icon()
nameEn = alg.name()
name = alg.displayName()
name = name if name != '' else nameEn
self.setIcon(0, icon)
self.setToolTip(0, name)
self.setText(0, name)
self.setData(0, ProcessingToolbox.NAME_ROLE, nameEn)
self.setData(0, ProcessingToolbox.TAG_ROLE, alg.tags())
self.setData(0, ProcessingToolbox.TYPE_ROLE, ProcessingToolbox.ALG_ITEM)
class TreeGroupItem(QTreeWidgetItem):
def __init__(self, name):
QTreeWidgetItem.__init__(self)
self.setToolTip(0, name)
self.setText(0, name)
self.setData(0, ProcessingToolbox.NAME_ROLE, name)
self.setData(0, ProcessingToolbox.TYPE_ROLE, ProcessingToolbox.GROUP_ITEM)
def setInactive(self):
self.setForeground(0, Qt.darkGray)
class TreeActionItem(QTreeWidgetItem):
def __init__(self, action):
QTreeWidgetItem.__init__(self)
self.action = action
self.setText(0, action.i18n_name)
self.setIcon(0, action.getIcon())
self.setData(0, ProcessingToolbox.NAME_ROLE, action.name)
class TreeProviderItem(QTreeWidgetItem):
def __init__(self, provider, tree, toolbox):
QTreeWidgetItem.__init__(self, None)
self.tree = tree
self.toolbox = toolbox
self.provider = provider
self.setIcon(0, self.provider.icon())
self.setData(0, ProcessingToolbox.TYPE_ROLE, ProcessingToolbox.PROVIDER_ITEM)
self.setToolTip(0, self.provider.longName())
self.populate()
def refresh(self):
self.takeChildren()
self.populate()
def populate(self):
self.toolbox.addAlgorithmsFromProvider(self.provider, self)