Mercurial Repositories > eric / file comparison
comparison: E4Gui/E4TreeView.py
E4Gui/E4TreeView.py
- changeset 55
- b5c84934de9c
- parent 54
- 31463df17fd5
- child 56
- 3bd61d38c924
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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 tree views. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import Qt | |
| 11 from PyQt4.QtGui import QTreeView, QItemSelectionModel | |
| 12 | |
| 13 class E4TreeView(QTreeView): | |
| 14 """ | |
| 15 Class implementing a tree 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 QTreeView.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 \ | |
| 35 self.selectionModel() is None or \ | |
| 36 not self.selectionModel().hasSelection(): | |
| 37 # no models available or nothing selected | |
| 38 return | |
| 39 | |
| 40 selectedRows = self.selectionModel().selectedRows() | |
| 41 for idx in reversed(sorted(selectedRows)): | |
| 42 self.model().removeRow(idx.row(), idx.parent()) | |
| 43 | |
| 44 def removeAll(self): | |
| 45 """ | |
| 46 Public method to clear the view. | |
| 47 """ | |
| 48 if self.model() is not None: | |
| 49 self.model().removeRows(0, self.model().rowCount(self.rootIndex()), | |
| 50 self.rootIndex()) |
