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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2017 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""
Python implementation of classes which are not provided by default by PySide.
"""
__authors__ = ["V. Valls"]
__license__ = "MIT"
__date__ = "17/01/2017"
from PySide.QtGui import QAbstractProxyModel
from PySide.QtCore import QModelIndex
from PySide.QtCore import Qt
from PySide.QtGui import QItemSelection
from PySide.QtGui import QItemSelectionRange
class QIdentityProxyModel(QAbstractProxyModel):
"""Python translation of the source code of Qt c++ file"""
def __init__(self, parent=None):
super(QIdentityProxyModel, self).__init__(parent)
self.__ignoreNextLayoutAboutToBeChanged = False
self.__ignoreNextLayoutChanged = False
self.__persistentIndexes = []
def columnCount(self, parent):
parent = self.mapToSource(parent)
return self.sourceModel().columnCount(parent)
def dropMimeData(self, data, action, row, column, parent):
parent = self.mapToSource(parent)
return self.sourceModel().dropMimeData(data, action, row, column, parent)
def index(self, row, column, parent=QModelIndex()):
parent = self.mapToSource(parent)
i = self.sourceModel().index(row, column, parent)
return self.mapFromSource(i)
def insertColumns(self, column, count, parent=QModelIndex()):
parent = self.mapToSource(parent)
return self.sourceModel().insertColumns(column, count, parent)
def insertRows(self, row, count, parent=QModelIndex()):
parent = self.mapToSource(parent)
return self.sourceModel().insertRows(row, count, parent)
def mapFromSource(self, sourceIndex):
if self.sourceModel() is None or not sourceIndex.isValid():
return QModelIndex()
index = self.createIndex(sourceIndex.row(), sourceIndex.column(), sourceIndex.internalPointer())
return index
def mapSelectionFromSource(self, sourceSelection):
proxySelection = QItemSelection()
if self.sourceModel() is None:
return proxySelection
cursor = sourceSelection.constBegin()
end = sourceSelection.constEnd()
while cursor != end:
topLeft = self.mapFromSource(cursor.topLeft())
bottomRight = self.mapFromSource(cursor.bottomRight())
proxyRange = QItemSelectionRange(topLeft, bottomRight)
proxySelection.append(proxyRange)
cursor += 1
return proxySelection
def mapSelectionToSource(self, proxySelection):
sourceSelection = QItemSelection()
if self.sourceModel() is None:
return sourceSelection
cursor = proxySelection.constBegin()
end = proxySelection.constEnd()
while cursor != end:
topLeft = self.mapToSource(cursor.topLeft())
bottomRight = self.mapToSource(cursor.bottomRight())
sourceRange = QItemSelectionRange(topLeft, bottomRight)
sourceSelection.append(sourceRange)
cursor += 1
return sourceSelection
def mapToSource(self, proxyIndex):
if self.sourceModel() is None or not proxyIndex.isValid():
return QModelIndex()
return self.sourceModel().createIndex(proxyIndex.row(), proxyIndex.column(), proxyIndex.internalPointer())
def match(self, start, role, value, hits=1, flags=Qt.MatchFlags(Qt.MatchStartsWith | Qt.MatchWrap)):
if self.sourceModel() is None:
return []
start = self.mapToSource(start)
sourceList = self.sourceModel().match(start, role, value, hits, flags)
proxyList = []
for cursor in sourceList:
proxyList.append(self.mapFromSource(cursor))
return proxyList
def parent(self, child):
sourceIndex = self.mapToSource(child)
sourceParent = sourceIndex.parent()
index = self.mapFromSource(sourceParent)
return index
def removeColumns(self, column, count, parent=QModelIndex()):
parent = self.mapToSource(parent)
return self.sourceModel().removeColumns(column, count, parent)
def removeRows(self, row, count, parent=QModelIndex()):
parent = self.mapToSource(parent)
return self.sourceModel().removeRows(row, count, parent)
def rowCount(self, parent=QModelIndex()):
parent = self.mapToSource(parent)
return self.sourceModel().rowCount(parent)
def setSourceModel(self, newSourceModel):
"""Bind and unbind the source model events"""
self.beginResetModel()
sourceModel = self.sourceModel()
if sourceModel is not None:
sourceModel.rowsAboutToBeInserted.disconnect(self.__rowsAboutToBeInserted)
sourceModel.rowsInserted.disconnect(self.__rowsInserted)
sourceModel.rowsAboutToBeRemoved.disconnect(self.__rowsAboutToBeRemoved)
sourceModel.rowsRemoved.disconnect(self.__rowsRemoved)
sourceModel.rowsAboutToBeMoved.disconnect(self.__rowsAboutToBeMoved)
sourceModel.rowsMoved.disconnect(self.__rowsMoved)
sourceModel.columnsAboutToBeInserted.disconnect(self.__columnsAboutToBeInserted)
sourceModel.columnsInserted.disconnect(self.__columnsInserted)
sourceModel.columnsAboutToBeRemoved.disconnect(self.__columnsAboutToBeRemoved)
sourceModel.columnsRemoved.disconnect(self.__columnsRemoved)
sourceModel.columnsAboutToBeMoved.disconnect(self.__columnsAboutToBeMoved)
sourceModel.columnsMoved.disconnect(self.__columnsMoved)
sourceModel.modelAboutToBeReset.disconnect(self.__modelAboutToBeReset)
sourceModel.modelReset.disconnect(self.__modelReset)
sourceModel.dataChanged.disconnect(self.__dataChanged)
sourceModel.headerDataChanged.disconnect(self.__headerDataChanged)
sourceModel.layoutAboutToBeChanged.disconnect(self.__layoutAboutToBeChanged)
sourceModel.layoutChanged.disconnect(self.__layoutChanged)
super(QIdentityProxyModel, self).setSourceModel(newSourceModel)
sourceModel = self.sourceModel()
if sourceModel is not None:
sourceModel.rowsAboutToBeInserted.connect(self.__rowsAboutToBeInserted)
sourceModel.rowsInserted.connect(self.__rowsInserted)
sourceModel.rowsAboutToBeRemoved.connect(self.__rowsAboutToBeRemoved)
sourceModel.rowsRemoved.connect(self.__rowsRemoved)
sourceModel.rowsAboutToBeMoved.connect(self.__rowsAboutToBeMoved)
sourceModel.rowsMoved.connect(self.__rowsMoved)
sourceModel.columnsAboutToBeInserted.connect(self.__columnsAboutToBeInserted)
sourceModel.columnsInserted.connect(self.__columnsInserted)
sourceModel.columnsAboutToBeRemoved.connect(self.__columnsAboutToBeRemoved)
sourceModel.columnsRemoved.connect(self.__columnsRemoved)
sourceModel.columnsAboutToBeMoved.connect(self.__columnsAboutToBeMoved)
sourceModel.columnsMoved.connect(self.__columnsMoved)
sourceModel.modelAboutToBeReset.connect(self.__modelAboutToBeReset)
sourceModel.modelReset.connect(self.__modelReset)
sourceModel.dataChanged.connect(self.__dataChanged)
sourceModel.headerDataChanged.connect(self.__headerDataChanged)
sourceModel.layoutAboutToBeChanged.connect(self.__layoutAboutToBeChanged)
sourceModel.layoutChanged.connect(self.__layoutChanged)
self.endResetModel()
def __columnsAboutToBeInserted(self, parent, start, end):
parent = self.mapFromSource(parent)
self.beginInsertColumns(parent, start, end)
def __columnsAboutToBeMoved(self, sourceParent, sourceStart, sourceEnd, destParent, dest):
sourceParent = self.mapFromSource(sourceParent)
destParent = self.mapFromSource(destParent)
self.beginMoveColumns(sourceParent, sourceStart, sourceEnd, destParent, dest)
def __columnsAboutToBeRemoved(self, parent, start, end):
parent = self.mapFromSource(parent)
self.beginRemoveColumns(parent, start, end)
def __columnsInserted(self, parent, start, end):
self.endInsertColumns()
def __columnsMoved(self, sourceParent, sourceStart, sourceEnd, destParent, dest):
self.endMoveColumns()
def __columnsRemoved(self, parent, start, end):
self.endRemoveColumns()
def __dataChanged(self, topLeft, bottomRight):
topLeft = self.mapFromSource(topLeft)
bottomRight = self.mapFromSource(bottomRight)
self.dataChanged(topLeft, bottomRight)
def __headerDataChanged(self, orientation, first, last):
self.headerDataChanged(orientation, first, last)
def __layoutAboutToBeChanged(self):
"""Store persistent indexes"""
if self.__ignoreNextLayoutAboutToBeChanged:
return
for proxyPersistentIndex in self.persistentIndexList():
self.__proxyIndexes.append()
sourcePersistentIndex = self.mapToSource(proxyPersistentIndex)
mapping = proxyPersistentIndex, sourcePersistentIndex
self.__persistentIndexes.append(mapping)
self.layoutAboutToBeChanged()
def __layoutChanged(self):
"""Restore persistent indexes"""
if self.__ignoreNextLayoutChanged:
return
for mapping in self.__persistentIndexes:
proxyIndex, sourcePersistentIndex = mapping
sourcePersistentIndex = self.mapFromSource(sourcePersistentIndex)
self.changePersistentIndex(proxyIndex, sourcePersistentIndex)
self.__persistentIndexes = []
self.layoutChanged()
def __modelAboutToBeReset(self):
self.beginResetModel()
def __modelReset(self):
self.endResetModel()
def __rowsAboutToBeInserted(self, parent, start, end):
parent = self.mapFromSource(parent)
self.beginInsertRows(parent, start, end)
def __rowsAboutToBeMoved(self, sourceParent, sourceStart, sourceEnd, destParent, dest):
sourceParent = self.mapFromSource(sourceParent)
destParent = self.mapFromSource(destParent)
self.beginMoveRows(sourceParent, sourceStart, sourceEnd, destParent, dest)
def __rowsAboutToBeRemoved(self, parent, start, end):
parent = self.mapFromSource(parent)
self.beginRemoveRows(parent, start, end)
def __rowsInserted(self, parent, start, end):
self.endInsertRows()
def __rowsMoved(self, sourceParent, sourceStart, sourceEnd, destParent, dest):
self.endMoveRows()
def __rowsRemoved(self, parent, start, end):
self.endRemoveRows()
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