E5Gui/E5TreeView.py

Mon, 25 Mar 2013 03:11:06 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Mon, 25 Mar 2013 03:11:06 +0100
branch
Py2 comp.
changeset 2525
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parent 2302
f29e9405c851
child 3145
a9de05d4a22f
permissions
-rw-r--r--

Script changes: Future import added, super calls modified and unicode behavior for str.

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Detlev Offenbach <detlev@die-offenbachs.de>
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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2009 - 2013 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 specialized tree views.
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8 """
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9
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parents: 2302
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10 from __future__ import unicode_literals # __IGNORE_WARNING__
8b507a9a2d40 Script changes: Future import added, super calls modified and unicode behavior for str.
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parents: 2302
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11
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12 from PyQt4.QtCore import Qt
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13 from PyQt4.QtGui import QTreeView
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14
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15
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16 class E5TreeView(QTreeView):
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17 """
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18 Class implementing a tree view supporting removal of entries.
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19 """
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20 def keyPressEvent(self, evt):
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21 """
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22 Protected method implementing special key handling.
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23
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24 @param evt reference to the event (QKeyEvent)
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25 """
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26 if evt.key() in [Qt.Key_Delete, Qt.Key_Backspace] and \
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27 self.model() is not None:
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28 self.removeSelected()
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29 evt.setAccepted(True)
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30 else:
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parents: 2302
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31 super(E5TreeView, self).keyPressEvent(evt)
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32
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33 def removeSelected(self):
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34 """
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35 Public method to remove the selected entries.
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36 """
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37 if self.model() is None or \
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38 self.selectionModel() is None or \
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39 not self.selectionModel().hasSelection():
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40 # no models available or nothing selected
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41 return
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42
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43 selectedRows = self.selectionModel().selectedRows()
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44 for idx in reversed(sorted(selectedRows)):
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45 self.model().removeRow(idx.row(), idx.parent())
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46
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47 def removeAll(self):
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48 """
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49 Public method to clear the view.
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50 """
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51 if self.model() is not None:
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parents: 791
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52 self.model().removeRows(0, self.model().rowCount(self.rootIndex()),
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53 self.rootIndex())

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