E5Gui/E5TableView.py

changeset 55
b5c84934de9c
child 791
9ec2ac20e54e
equal deleted inserted replaced
54:31463df17fd5 55:b5c84934de9c
1 # -*- coding: utf-8 -*-
2
3 # Copyright (c) 2009 - 2010 Detlev Offenbach <detlev@die-offenbachs.de>
4 #
5
6 """
7 Module implementing specialized table views.
8 """
9
10 from PyQt4.QtCore import Qt
11 from PyQt4.QtGui import QTableView, QItemSelectionModel
12
13 class E5TableView(QTableView):
14 """
15 Class implementing a table view supporting removal of entries.
16 """
17 def keyPressEvent(self, evt):
18 """
19 Protected method implementing special key handling.
20
21 @param evt reference to the event (QKeyEvent)
22 """
23 if evt.key() in [Qt.Key_Delete, Qt.Key_Backspace] and \
24 self.model() is not None:
25 self.removeSelected()
26 evt.setAccepted(True)
27 else:
28 QTableView.keyPressEvent(self, evt)
29
30 def removeSelected(self):
31 """
32 Public method to remove the selected entries.
33 """
34 if self.model() is None or self.selectionModel() is None:
35 # no models available
36 return
37
38 row = 0
39 selectedRows = self.selectionModel().selectedRows()
40 for selectedRow in reversed(selectedRows):
41 row = selectedRow.row()
42 self.model().removeRow(row, self.rootIndex())
43
44 idx = self.model().index(row, 0, self.rootIndex())
45 if not idx.isValid():
46 idx = self.model().index(row - 1, 0, self.rootIndex())
47 self.selectionModel().select(idx,
48 QItemSelectionModel.SelectCurrent | QItemSelectionModel.Rows)
49 self.setCurrentIndex(idx)
50
51 def removeAll(self):
52 """
53 Public method to clear the view.
54 """
55 if self.model() is not None:
56 self.model().removeRows(0, self.model().rowCount(self.rootIndex()),
57 self.rootIndex())

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