E5Gui/E5TreeSortFilterProxyModel.py

Sun, 19 Jun 2011 15:19:46 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 19 Jun 2011 15:19:46 +0200
changeset 1127
b1802ebe0066
parent 945
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child 1131
7781e396c903
permissions
-rw-r--r--

Added capability to encrypt saved passwords with a master password and rearranged some configuration parameters related to security.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2011 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a modified QSortFilterProxyModel.
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8 """
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9
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10 from PyQt4.QtCore import Qt, QModelIndex
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11 from PyQt4.QtGui import QSortFilterProxyModel
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12
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13
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14 class E5TreeSortFilterProxyModel(QSortFilterProxyModel):
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15 """
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16 Class implementing a modified QSortFilterProxyModel.
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17
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18 It always accepts the root nodes in the tree so filtering is only done
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19 on the children.
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20 """
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21 def __init__(self, parent=None):
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22 """
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23 Constructor
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24
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25 @param parent reference to the parent object (QObject)
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26 """
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27 QSortFilterProxyModel.__init__(self, parent)
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29 self.setFilterCaseSensitivity(Qt.CaseInsensitive)
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30
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31 def filterAcceptsRow(self, sourceRow, sourceParent):
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32 """
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33 Protected method to determine, if the row is acceptable.
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34
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35 @param sourceRow row number in the source model (integer)
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36 @param sourceParent index of the source item (QModelIndex)
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37 @return flag indicating acceptance (boolean)
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38 """
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39 idx = self.sourceModel().index(sourceRow, 0, sourceParent)
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40 if self.sourceModel().hasChildren(idx):
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41 return True
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42
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43 return QSortFilterProxyModel.filterAcceptsRow(self, sourceRow, sourceParent)
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44
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45 def hasChildren(self, parent=QModelIndex()):
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46 """
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47 Public method to check, if a parent node has some children.
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48
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49 @param parent index of the parent node (QModelIndex)
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50 @return flag indicating the presence of children (boolean)
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51 """
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52 sindex = self.mapToSource(parent)
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53 return self.sourceModel().hasChildren(sindex)

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