| 66 | |
| 67 | |
| 68 | class TimerHandler(QObject): |
| 69 | |
| 70 | def __init__(self, model, parent=None): |
| 71 | super().__init__(parent) |
| 72 | |
| 73 | self._model = model |
| 74 | |
| 75 | @pyqtSlot() |
| 76 | def changeData(self): |
| 77 | for i in range(10, 50): |
| 78 | self._model.setData(self._model.index(i, 1), QColor(Qt.blue), |
| 79 | Qt.BackgroundRole) |
| 80 | |
| 81 | @pyqtSlot() |
| 82 | def insertData(self): |
| 83 | self._model.insertRows(2, 9) |
| 84 | |
| 85 | for i in range(2, 11): |
| 86 | self._model.setData(self._model.index(i, 1), QColor(Qt.green), |
| 87 | Qt.BackgroundRole) |
| 88 | self._model.setData(self._model.index(i, 1), "InsertedRow", |
| 89 | Qt.DisplayRole) |
| 90 | |
| 91 | @pyqtSlot() |
| 92 | def removeData(self): |
| 93 | self._model.removeRows(2, 4) |
| 94 | |
| 95 | @pyqtSlot() |
| 96 | def changeFlags(self): |
| 97 | item = self._model.item(0, 0) |
| 98 | item.setEnabled(False) |
| 99 | |
| 100 | item = item.child(0, 0) |
| 101 | item.setFlags(item.flags() & Qt.ItemIsSelectable) |
| 102 | |
| 103 | @pyqtSlot() |
| 104 | def moveData(self): |
| 105 | self._model.moveRows(QModelIndex(), 2, 4, QModelIndex(), 10) |
| 106 | |
| 107 | |
| 108 | def addChild(numChildren, nestingLevel): |