Mercurial Repositories > eric / file comparison
comparison: eric6/E5Gui/E5TreeView.py
eric6/E5Gui/E5TreeView.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
- child 7229
- 53054eb5b15a
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing specialized tree views. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 from PyQt5.QtCore import Qt | |
| 13 from PyQt5.QtWidgets import QTreeView | |
| 14 | |
| 15 | |
| 16 class E5TreeView(QTreeView): | |
| 17 """ | |
| 18 Class implementing a tree view supporting removal of entries. | |
| 19 """ | |
| 20 def keyPressEvent(self, evt): | |
| 21 """ | |
| 22 Protected method implementing special key handling. | |
| 23 | |
| 24 @param evt reference to the event (QKeyEvent) | |
| 25 """ | |
| 26 if evt.key() in [Qt.Key_Delete, Qt.Key_Backspace] and \ | |
| 27 self.model() is not None: | |
| 28 self.removeSelected() | |
| 29 evt.setAccepted(True) | |
| 30 else: | |
| 31 super(E5TreeView, self).keyPressEvent(evt) | |
| 32 | |
| 33 def removeSelected(self): | |
| 34 """ | |
| 35 Public method to remove the selected entries. | |
| 36 """ | |
| 37 if self.model() is None or \ | |
| 38 self.selectionModel() is None or \ | |
| 39 not self.selectionModel().hasSelection(): | |
| 40 # no models available or nothing selected | |
| 41 return | |
| 42 | |
| 43 selectedRows = self.selectionModel().selectedRows() | |
| 44 for idx in reversed(sorted(selectedRows)): | |
| 45 self.model().removeRow(idx.row(), idx.parent()) | |
| 46 | |
| 47 def removeAll(self): | |
| 48 """ | |
| 49 Public method to clear the view. | |
| 50 """ | |
| 51 if self.model() is not None: | |
| 52 self.model().removeRows(0, self.model().rowCount(self.rootIndex()), | |
| 53 self.rootIndex()) |
