QTableView
被指定爲QAbstractTableModel
作爲模型。並且ItemDelegate(QItemDelegate)
被分配了tableView.openPersistentEditor
。現在,當單擊tableView時,事件不會一直傳播到tableView(它是否被代理QLineEditor
阻止)。如何阻止項目委託阻止mousePressEvent
什麼會通過,可以用來把事情做好QLineEdit's
mousePressEvent event that is passed through the
ItemDelegate to
QTableView中的模式when the tableView's item is clicked even while it is occupied by
QItemInstance ? Is there any
QItemDelegate`標誌的方法嗎?
該代碼使用模型和委託創建單個tableView。 單擊列0或列1觸發的事件不會傳播到tableView的項目,因爲項目保持取消選中狀態。
取消註釋tableView.setSelectionBehavior(QtGui.QTableView.SelectRows)
可以解決該問題。可以?
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_()
在代理項目的事件處理程序中調用模型的函數將會起作用。有些人不會喜歡這樣的解決方案。 – alphanumeric