E5Gui/E5ListView.py

Wed, 02 Jan 2013 10:31:48 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 02 Jan 2013 10:31:48 +0100
changeset 2302
f29e9405c851
parent 1509
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child 2525
8b507a9a2d40
child 3022
57179e4cdadd
child 3163
9f50365a0870
permissions
-rw-r--r--

Updated copyright for 2013.

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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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f29e9405c851 Updated copyright for 2013.
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parents: 1509
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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 list views.
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8 """
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9
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10 from PyQt4.QtCore import Qt
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11 from PyQt4.QtGui import QListView, QItemSelectionModel
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12
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13
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14 class E5ListView(QListView):
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15 """
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16 Class implementing a list view supporting removal of entries.
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17 """
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18 def keyPressEvent(self, evt):
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19 """
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20 Protected method implementing special key handling.
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21
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22 @param evt reference to the event (QKeyEvent)
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23 """
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24 if evt.key() in [Qt.Key_Delete, Qt.Key_Backspace] and \
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25 self.model() is not None:
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26 self.removeSelected()
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27 evt.setAccepted(True)
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28 else:
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29 super().keyPressEvent(evt)
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30
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31 def removeSelected(self):
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32 """
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33 Public method to remove the selected entries.
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34 """
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35 if self.model() is None or self.selectionModel() is None:
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36 # no models available
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37 return
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38
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39 row = 0
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40 selectedRows = self.selectionModel().selectedRows()
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41 for selectedRow in reversed(selectedRows):
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42 row = selectedRow.row()
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43 self.model().removeRow(row, self.rootIndex())
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44
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45 idx = self.model().index(row, 0, self.rootIndex())
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46 if not idx.isValid():
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47 idx = self.model().index(row - 1, 0, self.rootIndex())
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48 self.selectionModel().select(idx,
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49 QItemSelectionModel.SelectCurrent | QItemSelectionModel.Rows)
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50 self.setCurrentIndex(idx)
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51
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52 def removeAll(self):
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53 """
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54 Public method to clear the view.
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55 """
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56 if self.model() is not None:
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parents: 791
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57 self.model().removeRows(0, self.model().rowCount(self.rootIndex()),
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parents: 791
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58 self.rootIndex())

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