Mercurial Repositories > eric / file comparison
comparison: E5Gui/E5ListView.py
E5Gui/E5ListView.py
- changeset 55
- b5c84934de9c
- child 791
- 9ec2ac20e54e
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| 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 list views. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import Qt | |
| 11 from PyQt4.QtGui import QListView, QItemSelectionModel | |
| 12 | |
| 13 class E5ListView(QListView): | |
| 14 """ | |
| 15 Class implementing a list 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 QListView.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()) |
