如何阻止Item Delegate阻止mousePressEvent

Question

QAbstractTableModel被指定为ItemDelegate(QItemDelegate)作为模型。并tableView.openPersistentEditor分配了QLineEditor。现在，当单击tableView时，事件不会一直传播到tableView（它是否被委派的QLineEdit's阻止）。

什么是传递event that is passed through the mousePressEvent to ItemDelegate when the tableView's item is clicked even while it is occupied by QTableView的模型? Is there any QItemInstance tableView.setSelectionBehavior(QtGui.QTableView.SelectRows) QItemDelegate`标志的方法用来完成任务？

代码使用model和delegate创建一个tableView。 单击列0或列1触发的事件不会传播到tableView的项目，因为项目保持取消选择状态。

取消注释from PyQt4 import QtCore, QtGui app = QtGui.QApplication([]) class LineEdit(QtGui.QLineEdit): def __init__(self, parent=None, total=20): super(LineEdit, self).__init__(parent=parent) def mousePressEvent(self, event): print 'mousePressEvent', event super(LineEdit, self).mousePressEvent(event) class Delegate(QtGui.QItemDelegate): def __init__(self): QtGui.QItemDelegate.__init__(self) def createEditor(self, parent, option, index): if index.column()==0: lineedit=LineEdit(parent) return lineedit elif index.column()==1: combo=QtGui.QComboBox(parent) return combo def setEditorData(self, editor, index): row = index.row() column = index.column() value = index.model().items[row][column] if isinstance(editor, QtGui.QComboBox): editor.addItems(['Somewhere','Over','The Rainbow']) editor.setCurrentIndex(index.row()) if isinstance(editor, QtGui.QLineEdit): editor.setText('Somewhere over the rainbow') class Model(QtCore.QAbstractTableModel): def __init__(self): QtCore.QAbstractTableModel.__init__(self) self.items = [[1, 'one', 'ONE'], [2, 'two', 'TWO'], [3, 'three', 'THREE']] def flags(self, index): return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEditable def rowCount(self, parent=QtCore.QModelIndex()): return 3 def columnCount(self, parent=QtCore.QModelIndex()): return 3 def data(self, index, role): if not index.isValid(): return row = index.row() column = index.column() if role == QtCore.Qt.DisplayRole or role == QtCore.Qt.EditRole: return self.items[row][column] def tableViewClicked(index): print 'clicked: %s'%index tableModel=Model() tableView=QtGui.QTableView() tableView.setModel(tableModel) tableView.setItemDelegate(Delegate()) # tableView.setSelectionBehavior(QtGui.QTableView.SelectRows) tableView.clicked.connect(tableViewClicked) for row in range(tableModel.rowCount()): for column in range(tableModel.columnCount()): index=tableModel.index(row, column) tableView.openPersistentEditor(index) tableView.show() app.exec_() 行会解决问题。是吗？

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Answer 1

为什么不在委托项的功能中使用模型对象指针？例如，将您的委托项目的信号连接到模型的插槽，或者在委托项目的事件处理程序中调用模型的功能？