#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2016 The Qt Company Ltd.
## Contact: http://www.qt.io/licensing/
##
## This file is part of the Qt for Python examples of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:BSD$
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##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
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## from this software without specific prior written permission.
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## $QT_END_LICENSE$
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#############################################################################
"""PySide2 port of the widgets/tools/settingseditor example from Qt v5.x"""
import sys
from PySide2 import QtCore, QtGui, QtWidgets
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.settingsTree = SettingsTree()
self.setCentralWidget(self.settingsTree)
self.locationDialog = None
self.createActions()
self.createMenus()
self.autoRefreshAct.setChecked(True)
self.fallbacksAct.setChecked(True)
self.setWindowTitle("Settings Editor")
self.resize(500, 600)
def openSettings(self):
if self.locationDialog is None:
self.locationDialog = LocationDialog(self)
if self.locationDialog.exec_():
settings = QtCore.QSettings(self.locationDialog.format(),
self.locationDialog.scope(),
self.locationDialog.organization(),
self.locationDialog.application())
self.setSettingsObject(settings)
self.fallbacksAct.setEnabled(True)
def openIniFile(self):
fileName, _ = QtWidgets.QFileDialog.getOpenFileName(self, "Open INI File",
'', "INI Files (*.ini *.conf)")
if fileName:
settings = QtCore.QSettings(fileName, QtCore.QSettings.IniFormat)
self.setSettingsObject(settings)
self.fallbacksAct.setEnabled(False)
def openPropertyList(self):
fileName, _ = QtWidgets.QFileDialog.getOpenFileName(self,
"Open Property List", '', "Property List Files (*.plist)")
if fileName:
settings = QtCore.QSettings(fileName, QtCore.QSettings.NativeFormat)
self.setSettingsObject(settings)
self.fallbacksAct.setEnabled(False)
def openRegistryPath(self):
path, ok = QtWidgets.QInputDialog.getText(self, "Open Registry Path",
"Enter the path in the Windows registry:",
QtWidgets.QLineEdit.Normal, 'HKEY_CURRENT_USER\\')
if ok and path != '':
settings = QtCore.QSettings(path, QtCore.QSettings.NativeFormat)
self.setSettingsObject(settings)
self.fallbacksAct.setEnabled(False)
def about(self):
QtWidgets.QMessageBox.about(self, "About Settings Editor",
"The Settings Editor example shows how to access "
"application settings using Qt.")
def createActions(self):
self.openSettingsAct = QtWidgets.QAction("&Open Application Settings...",
self, shortcut="Ctrl+O", triggered=self.openSettings)
self.openIniFileAct = QtWidgets.QAction("Open I&NI File...", self,
shortcut="Ctrl+N", triggered=self.openIniFile)
self.openPropertyListAct = QtWidgets.QAction("Open macOS &Property List...",
self, shortcut="Ctrl+P", triggered=self.openPropertyList)
if sys.platform != 'darwin':
self.openPropertyListAct.setEnabled(False)
self.openRegistryPathAct = QtWidgets.QAction(
"Open Windows &Registry Path...", self, shortcut="Ctrl+G",
triggered=self.openRegistryPath)
if sys.platform != 'win32':
self.openRegistryPathAct.setEnabled(False)
self.refreshAct = QtWidgets.QAction("&Refresh", self, shortcut="Ctrl+R",
enabled=False, triggered=self.settingsTree.refresh)
self.exitAct = QtWidgets.QAction("E&xit", self, shortcut="Ctrl+Q",
triggered=self.close)
self.autoRefreshAct = QtWidgets.QAction("&Auto-Refresh", self,
shortcut="Ctrl+A", checkable=True, enabled=False)
self.autoRefreshAct.triggered[bool].connect(self.settingsTree.setAutoRefresh)
self.autoRefreshAct.triggered[bool].connect(self.refreshAct.setDisabled)
self.fallbacksAct = QtWidgets.QAction("&Fallbacks", self,
shortcut="Ctrl+F", checkable=True, enabled=False)
self.fallbacksAct.triggered[bool].connect(self.settingsTree.setFallbacksEnabled)
self.aboutAct = QtWidgets.QAction("&About", self, triggered=self.about)
self.aboutQtAct = QtWidgets.QAction("About &Qt", self,
triggered=QtWidgets.qApp.aboutQt)
def createMenus(self):
self.fileMenu = self.menuBar().addMenu("&File")
self.fileMenu.addAction(self.openSettingsAct)
self.fileMenu.addAction(self.openIniFileAct)
self.fileMenu.addAction(self.openPropertyListAct)
self.fileMenu.addAction(self.openRegistryPathAct)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.refreshAct)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.exitAct)
self.optionsMenu = self.menuBar().addMenu("&Options")
self.optionsMenu.addAction(self.autoRefreshAct)
self.optionsMenu.addAction(self.fallbacksAct)
self.menuBar().addSeparator()
self.helpMenu = self.menuBar().addMenu("&Help")
self.helpMenu.addAction(self.aboutAct)
self.helpMenu.addAction(self.aboutQtAct)
def setSettingsObject(self, settings):
settings.setFallbacksEnabled(self.fallbacksAct.isChecked())
self.settingsTree.setSettingsObject(settings)
self.refreshAct.setEnabled(True)
self.autoRefreshAct.setEnabled(True)
niceName = settings.fileName()
niceName.replace('\\', '/')
niceName = niceName.split('/')[-1]
if not settings.isWritable():
niceName += " (read only)"
self.setWindowTitle("%s - Settings Editor" % niceName)
class LocationDialog(QtWidgets.QDialog):
def __init__(self, parent=None):
super(LocationDialog, self).__init__(parent)
self.formatComboBox = QtWidgets.QComboBox()
self.formatComboBox.addItem("Native")
self.formatComboBox.addItem("INI")
self.scopeComboBox = QtWidgets.QComboBox()
self.scopeComboBox.addItem("User")
self.scopeComboBox.addItem("System")
self.organizationComboBox = QtWidgets.QComboBox()
self.organizationComboBox.addItem("Trolltech")
self.organizationComboBox.setEditable(True)
self.applicationComboBox = QtWidgets.QComboBox()
self.applicationComboBox.addItem("Any")
self.applicationComboBox.addItem("Application Example")
self.applicationComboBox.addItem("Assistant")
self.applicationComboBox.addItem("Designer")
self.applicationComboBox.addItem("Linguist")
self.applicationComboBox.setEditable(True)
self.applicationComboBox.setCurrentIndex(3)
formatLabel = QtWidgets.QLabel("&Format:")
formatLabel.setBuddy(self.formatComboBox)
scopeLabel = QtWidgets.QLabel("&Scope:")
scopeLabel.setBuddy(self.scopeComboBox)
organizationLabel = QtWidgets.QLabel("&Organization:")
organizationLabel.setBuddy(self.organizationComboBox)
applicationLabel = QtWidgets.QLabel("&Application:")
applicationLabel.setBuddy(self.applicationComboBox)
self.locationsGroupBox = QtWidgets.QGroupBox("Setting Locations")
self.locationsTable = QtWidgets.QTableWidget()
self.locationsTable.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
self.locationsTable.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.locationsTable.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.locationsTable.setColumnCount(2)
self.locationsTable.setHorizontalHeaderLabels(("Location", "Access"))
self.locationsTable.horizontalHeader().setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch)
self.locationsTable.horizontalHeader().resizeSection(1, 180)
self.buttonBox = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
self.formatComboBox.activated.connect(self.updateLocationsTable)
self.scopeComboBox.activated.connect(self.updateLocationsTable)
self.organizationComboBox.lineEdit().editingFinished.connect(self.updateLocationsTable)
self.applicationComboBox.lineEdit().editingFinished.connect(self.updateLocationsTable)
self.buttonBox.accepted.connect(self.accept)
self.buttonBox.rejected.connect(self.reject)
locationsLayout = QtWidgets.QVBoxLayout()
locationsLayout.addWidget(self.locationsTable)
self.locationsGroupBox.setLayout(locationsLayout)
mainLayout = QtWidgets.QGridLayout()
mainLayout.addWidget(formatLabel, 0, 0)
mainLayout.addWidget(self.formatComboBox, 0, 1)
mainLayout.addWidget(scopeLabel, 1, 0)
mainLayout.addWidget(self.scopeComboBox, 1, 1)
mainLayout.addWidget(organizationLabel, 2, 0)
mainLayout.addWidget(self.organizationComboBox, 2, 1)
mainLayout.addWidget(applicationLabel, 3, 0)
mainLayout.addWidget(self.applicationComboBox, 3, 1)
mainLayout.addWidget(self.locationsGroupBox, 4, 0, 1, 2)
mainLayout.addWidget(self.buttonBox, 5, 0, 1, 2)
self.setLayout(mainLayout)
self.updateLocationsTable()
self.setWindowTitle("Open Application Settings")
self.resize(650, 400)
def format(self):
if self.formatComboBox.currentIndex() == 0:
return QtCore.QSettings.NativeFormat
else:
return QtCore.QSettings.IniFormat
def scope(self):
if self.scopeComboBox.currentIndex() == 0:
return QtCore.QSettings.UserScope
else:
return QtCore.QSettings.SystemScope
def organization(self):
return self.organizationComboBox.currentText()
def application(self):
if self.applicationComboBox.currentText() == "Any":
return ''
return self.applicationComboBox.currentText()
def updateLocationsTable(self):
self.locationsTable.setUpdatesEnabled(False)
self.locationsTable.setRowCount(0)
for i in range(2):
if i == 0:
if self.scope() == QtCore.QSettings.SystemScope:
continue
actualScope = QtCore.QSettings.UserScope
else:
actualScope = QtCore.QSettings.SystemScope
for j in range(2):
if j == 0:
if not self.application():
continue
actualApplication = self.application()
else:
actualApplication = ''
settings = QtCore.QSettings(self.format(), actualScope,
self.organization(), actualApplication)
row = self.locationsTable.rowCount()
self.locationsTable.setRowCount(row + 1)
item0 = QtWidgets.QTableWidgetItem()
item0.setText(settings.fileName())
item1 = QtWidgets.QTableWidgetItem()
disable = not (settings.childKeys() or settings.childGroups())
if row == 0:
if settings.isWritable():
item1.setText("Read-write")
disable = False
else:
item1.setText("Read-only")
self.buttonBox.button(QtWidgets.QDialogButtonBox.Ok).setDisabled(disable)
else:
item1.setText("Read-only fallback")
if disable:
item0.setFlags(item0.flags() & ~QtCore.Qt.ItemIsEnabled)
item1.setFlags(item1.flags() & ~QtCore.Qt.ItemIsEnabled)
self.locationsTable.setItem(row, 0, item0)
self.locationsTable.setItem(row, 1, item1)
self.locationsTable.setUpdatesEnabled(True)
class SettingsTree(QtWidgets.QTreeWidget):
def __init__(self, parent=None):
super(SettingsTree, self).__init__(parent)
self.setItemDelegate(VariantDelegate(self))
self.setHeaderLabels(("Setting", "Type", "Value"))
self.header().setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch)
self.header().setSectionResizeMode(2, QtWidgets.QHeaderView.Stretch)
self.settings = None
self.refreshTimer = QtCore.QTimer()
self.refreshTimer.setInterval(2000)
self.autoRefresh = False
self.groupIcon = QtGui.QIcon()
self.groupIcon.addPixmap(self.style().standardPixmap(QtWidgets.QStyle.SP_DirClosedIcon),
QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.groupIcon.addPixmap(self.style().standardPixmap(QtWidgets.QStyle.SP_DirOpenIcon),
QtGui.QIcon.Normal, QtGui.QIcon.On)
self.keyIcon = QtGui.QIcon()
self.keyIcon.addPixmap(self.style().standardPixmap(QtWidgets.QStyle.SP_FileIcon))
self.refreshTimer.timeout.connect(self.maybeRefresh)
def setSettingsObject(self, settings):
self.settings = settings
self.clear()
if self.settings is not None:
self.settings.setParent(self)
self.refresh()
if self.autoRefresh:
self.refreshTimer.start()
else:
self.refreshTimer.stop()
def sizeHint(self):
return QtCore.QSize(800, 600)
def setAutoRefresh(self, autoRefresh):
self.autoRefresh = autoRefresh
if self.settings is not None:
if self.autoRefresh:
self.maybeRefresh()
self.refreshTimer.start()
else:
self.refreshTimer.stop()
def setFallbacksEnabled(self, enabled):
if self.settings is not None:
self.settings.setFallbacksEnabled(enabled)
self.refresh()
def maybeRefresh(self):
if self.state() != QtWidgets.QAbstractItemView.EditingState:
self.refresh()
def refresh(self):
if self.settings is None:
return
# The signal might not be connected.
try:
self.itemChanged.disconnect(self.updateSetting)
except:
pass
self.settings.sync()
self.updateChildItems(None)
self.itemChanged.connect(self.updateSetting)
def event(self, event):
if event.type() == QtCore.QEvent.WindowActivate:
if self.isActiveWindow() and self.autoRefresh:
self.maybeRefresh()
return super(SettingsTree, self).event(event)
def updateSetting(self, item):
key = item.text(0)
ancestor = item.parent()
while ancestor:
key = ancestor.text(0) + '/' + key
ancestor = ancestor.parent()
d = item.data(2, QtCore.Qt.UserRole)
self.settings.setValue(key, item.data(2, QtCore.Qt.UserRole))
if self.autoRefresh:
self.refresh()
def updateChildItems(self, parent):
dividerIndex = 0
for group in self.settings.childGroups():
childIndex = self.findChild(parent, group, dividerIndex)
if childIndex != -1:
child = self.childAt(parent, childIndex)
child.setText(1, '')
child.setText(2, '')
child.setData(2, QtCore.Qt.UserRole, None)
self.moveItemForward(parent, childIndex, dividerIndex)
else:
child = self.createItem(group, parent, dividerIndex)
child.setIcon(0, self.groupIcon)
dividerIndex += 1
self.settings.beginGroup(group)
self.updateChildItems(child)
self.settings.endGroup()
for key in self.settings.childKeys():
childIndex = self.findChild(parent, key, 0)
if childIndex == -1 or childIndex >= dividerIndex:
if childIndex != -1:
child = self.childAt(parent, childIndex)
for i in range(child.childCount()):
self.deleteItem(child, i)
self.moveItemForward(parent, childIndex, dividerIndex)
else:
child = self.createItem(key, parent, dividerIndex)
child.setIcon(0, self.keyIcon)
dividerIndex += 1
else:
child = self.childAt(parent, childIndex)
value = self.settings.value(key)
if value is None:
child.setText(1, 'Invalid')
else:
child.setText(1, value.__class__.__name__)
child.setText(2, VariantDelegate.displayText(value))
child.setData(2, QtCore.Qt.UserRole, value)
while dividerIndex < self.childCount(parent):
self.deleteItem(parent, dividerIndex)
def createItem(self, text, parent, index):
after = None
if index != 0:
after = self.childAt(parent, index - 1)
if parent is not None:
item = QtWidgets.QTreeWidgetItem(parent, after)
else:
item = QtWidgets.QTreeWidgetItem(self, after)
item.setText(0, text)
item.setFlags(item.flags() | QtCore.Qt.ItemIsEditable)
return item
def deleteItem(self, parent, index):
if parent is not None:
item = parent.takeChild(index)
else:
item = self.takeTopLevelItem(index)
del item
def childAt(self, parent, index):
if parent is not None:
return parent.child(index)
else:
return self.topLevelItem(index)
def childCount(self, parent):
if parent is not None:
return parent.childCount()
else:
return self.topLevelItemCount()
def findChild(self, parent, text, startIndex):
for i in range(self.childCount(parent)):
if self.childAt(parent, i).text(0) == text:
return i
return -1
def moveItemForward(self, parent, oldIndex, newIndex):
for int in range(oldIndex - newIndex):
self.deleteItem(parent, newIndex)
class VariantDelegate(QtWidgets.QItemDelegate):
def __init__(self, parent=None):
super(VariantDelegate, self).__init__(parent)
self.boolExp = QtCore.QRegExp()
self.boolExp.setPattern('true|false')
self.boolExp.setCaseSensitivity(QtCore.Qt.CaseInsensitive)
self.byteArrayExp = QtCore.QRegExp()
self.byteArrayExp.setPattern('[\\x00-\\xff]*')
self.charExp = QtCore.QRegExp()
self.charExp.setPattern('.')
self.colorExp = QtCore.QRegExp()
self.colorExp.setPattern('\\(([0-9]*),([0-9]*),([0-9]*),([0-9]*)\\)')
self.doubleExp = QtCore.QRegExp()
self.doubleExp.setPattern('')
self.pointExp = QtCore.QRegExp()
self.pointExp.setPattern('\\((-?[0-9]*),(-?[0-9]*)\\)')
self.rectExp = QtCore.QRegExp()
self.rectExp.setPattern('\\((-?[0-9]*),(-?[0-9]*),(-?[0-9]*),(-?[0-9]*)\\)')
self.signedIntegerExp = QtCore.QRegExp()
self.signedIntegerExp.setPattern('-?[0-9]*')
self.sizeExp = QtCore.QRegExp(self.pointExp)
self.unsignedIntegerExp = QtCore.QRegExp()
self.unsignedIntegerExp.setPattern('[0-9]*')
self.dateExp = QtCore.QRegExp()
self.dateExp.setPattern('([0-9]{,4})-([0-9]{,2})-([0-9]{,2})')
self.timeExp = QtCore.QRegExp()
self.timeExp.setPattern('([0-9]{,2}):([0-9]{,2}):([0-9]{,2})')
self.dateTimeExp = QtCore.QRegExp()
self.dateTimeExp.setPattern(self.dateExp.pattern() + 'T' + self.timeExp.pattern())
def paint(self, painter, option, index):
if index.column() == 2:
value = index.model().data(index, QtCore.Qt.UserRole)
if not self.isSupportedType(value):
myOption = QtWidgets.QStyleOptionViewItem(option)
myOption.state &= ~QtWidgets.QStyle.State_Enabled
super(VariantDelegate, self).paint(painter, myOption, index)
return
super(VariantDelegate, self).paint(painter, option, index)
def createEditor(self, parent, option, index):
if index.column() != 2:
return None
originalValue = index.model().data(index, QtCore.Qt.UserRole)
if not self.isSupportedType(originalValue):
return None
lineEdit = QtWidgets.QLineEdit(parent)
lineEdit.setFrame(False)
if isinstance(originalValue, bool):
regExp = self.boolExp
elif isinstance(originalValue, float):
regExp = self.doubleExp
elif isinstance(originalValue, int):
regExp = self.signedIntegerExp
elif isinstance(originalValue, QtCore.QByteArray):
regExp = self.byteArrayExp
elif isinstance(originalValue, QtGui.QColor):
regExp = self.colorExp
elif isinstance(originalValue, QtCore.QDate):
regExp = self.dateExp
elif isinstance(originalValue, QtCore.QDateTime):
regExp = self.dateTimeExp
elif isinstance(originalValue, QtCore.QTime):
regExp = self.timeExp
elif isinstance(originalValue, QtCore.QPoint):
regExp = self.pointExp
elif isinstance(originalValue, QtCore.QRect):
regExp = self.rectExp
elif isinstance(originalValue, QtCore.QSize):
regExp = self.sizeExp
else:
regExp = QtCore.QRegExp()
if not regExp.isEmpty():
validator = QtGui.QRegExpValidator(regExp, lineEdit)
lineEdit.setValidator(validator)
return lineEdit
def setEditorData(self, editor, index):
value = index.model().data(index, QtCore.Qt.UserRole)
if editor is not None:
editor.setText(self.displayText(value))
def setModelData(self, editor, model, index):
if not editor.isModified():
return
text = editor.text()
validator = editor.validator()
if validator is not None:
state, text, _ = validator.validate(text, 0)
if state != QtGui.QValidator.Acceptable:
return
originalValue = index.model().data(index, QtCore.Qt.UserRole)
if isinstance(originalValue, QtGui.QColor):
self.colorExp.exactMatch(text)
value = QtGui.QColor(min(int(self.colorExp.cap(1)), 255),
min(int(self.colorExp.cap(2)), 255),
min(int(self.colorExp.cap(3)), 255),
min(int(self.colorExp.cap(4)), 255))
elif isinstance(originalValue, QtCore.QDate):
value = QtCore.QDate.fromString(text, QtCore.Qt.ISODate)
if not value.isValid():
return
elif isinstance(originalValue, QtCore.QDateTime):
value = QtCore.QDateTime.fromString(text, QtCore.Qt.ISODate)
if not value.isValid():
return
elif isinstance(originalValue, QtCore.QTime):
value = QtCore.QTime.fromString(text, QtCore.Qt.ISODate)
if not value.isValid():
return
elif isinstance(originalValue, QtCore.QPoint):
self.pointExp.exactMatch(text)
value = QtCore.QPoint(int(self.pointExp.cap(1)),
int(self.pointExp.cap(2)))
elif isinstance(originalValue, QtCore.QRect):
self.rectExp.exactMatch(text)
value = QtCore.QRect(int(self.rectExp.cap(1)),
int(self.rectExp.cap(2)),
int(self.rectExp.cap(3)),
int(self.rectExp.cap(4)))
elif isinstance(originalValue, QtCore.QSize):
self.sizeExp.exactMatch(text)
value = QtCore.QSize(int(self.sizeExp.cap(1)),
int(self.sizeExp.cap(2)))
elif isinstance(originalValue, list):
value = text.split(',')
else:
value = type(originalValue)(text)
model.setData(index, self.displayText(value), QtCore.Qt.DisplayRole)
model.setData(index, value, QtCore.Qt.UserRole)
@staticmethod
def isSupportedType(value):
return isinstance(value, (bool, float, int, QtCore.QByteArray,
str, QtGui.QColor, QtCore.QDate, QtCore.QDateTime,
QtCore.QTime, QtCore.QPoint, QtCore.QRect, QtCore.QSize,
list))
@staticmethod
def displayText(value):
if isinstance(value, (bool, int, QtCore.QByteArray)):
return str(value)
if isinstance(value, str):
return value
elif isinstance(value, float):
return '%g' % value
elif isinstance(value, QtGui.QColor):
return '(%u,%u,%u,%u)' % (value.red(), value.green(), value.blue(), value.alpha())
elif isinstance(value, (QtCore.QDate, QtCore.QDateTime, QtCore.QTime)):
return value.toString(QtCore.Qt.ISODate)
elif isinstance(value, QtCore.QPoint):
return '(%d,%d)' % (value.x(), value.y())
elif isinstance(value, QtCore.QRect):
return '(%d,%d,%d,%d)' % (value.x(), value.y(), value.width(), value.height())
elif isinstance(value, QtCore.QSize):
return '(%d,%d)' % (value.width(), value.height())
elif isinstance(value, list):
return ','.join(value)
elif value is None:
return ''
return '<%s>' % value
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
mainWin = MainWindow()
mainWin.show()
sys.exit(app.exec_())