如何使QTableView仅在双击时才能进入编辑模式 [英] How to make QTableView to enter the editing mode only on double-click

问题描述

设置Qt.ItemIsEnabled标志可使QTableView项目可编辑. 要进入项目的编辑模式，用户只需双击它即可.编辑项目的另一种方法是选择它并按键盘键. 如何禁用进入项目编辑模式的第二种方式?

Setting a Qt.ItemIsEnabled flag makes the QTableView items editable. To enter the item's editing mode the user can simply double-click it. Another way to edit the item is to select it and press a keyboard key. How to disable this second way of entering the item's editing mode?

这是显示带有选定项目的QTableView的图像:

Here is the image showing the QTableView with the item selected:

用户按下键盘键后，所选项目已处于编辑模式:

As soon as the user presses the keyboard key the selected item is already in the edit mode:

此默认的QTableView行为使无法定义函数快捷方式，因为QListView的项不是触发链接到快捷方式的函数，而是进入编辑模式....如何使QTableView仅在double上进入编辑模式单击?

This default QTableView behavior makes it impossible to define the functions shortcuts since instead of triggering the linked-to-shortcut function the QListView's item enters the editing mode.... How to make QTableView to enter the editing mode only on the double-click?

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys

class Model(QAbstractTableModel):
    def __init__(self, parent=None, *args):
        QAbstractTableModel.__init__(self, parent, *args)
        self.items = ['Item_A_001','Item_A_002','Item_B_001','Item_B_002']

    def rowCount(self, parent=QModelIndex()):
        return len(self.items)       
    def columnCount(self, parent=QModelIndex()):
        return 1

    def data(self, index, role):
        if not index.isValid(): return QVariant()
        elif role != Qt.DisplayRole:
            return QVariant()

        row=index.row()
        if row<len(self.items):
            return QVariant(self.items[row])
        else:
            return QVariant()
    def flags(self, index):
        return Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsEditable

class MyWindow(QWidget):
    def __init__(self, *args):
        QWidget.__init__(self, *args)

        tableModel=Model(self)               

        self.view=QTableView(self) 
        self.view.setModel(tableModel)
        self.view.horizontalHeader().setResizeMode(QHeaderView.Stretch)

        layout = QVBoxLayout(self)
        layout.addWidget(self.view)
        self.setLayout(layout)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = MyWindow()
    w.show()
    sys.exit(app.exec_())

推荐答案

，您需要在QTableView上重新实现偶数处理程序keyPressEvent.为此，您可以创建一个自定义QTableView类并在其中重新实现事件处理程序.

you need to reimplement the even handler keyPressEvent on your QTableView. To do so, you can create a custom QTableView class and reimplement the event handler inside it.

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys

#Your new customized QTableView
class CustomQTableView(QTableView):    
    def __init__(self, *args, **kwargs):
        QTableView.__init__(self, *args, **kwargs) #Use QTableView constructor

    def keyPressEvent(self, event): #Reimplement the event here, in your case, do nothing
        return

class Model(QAbstractTableModel):
    def __init__(self, parent=None, *args):
        QAbstractTableModel.__init__(self, parent, *args)
        self.items = ['Item_A_001','Item_A_002','Item_B_001','Item_B_002']

    def rowCount(self, parent=QModelIndex()):
        return len(self.items)       
    def columnCount(self, parent=QModelIndex()):
        return 1

    def data(self, index, role):
        if not index.isValid(): return QVariant()
        elif role != Qt.DisplayRole:
            return QVariant()

        row=index.row()
        if row<len(self.items):
            return QVariant(self.items[row])
        else:
            return QVariant()
    def flags(self, index):
        return Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsEditable


class MyWindow(QWidget):
    def __init__(self, *args):
        QWidget.__init__(self, *args)
        print "c"
        tableModel=Model(self)               

        self.view=CustomQTableView(self) #Call your custom QTableView here
        self.view.setModel(tableModel)
        self.view.horizontalHeader().setResizeMode(QHeaderView.Stretch)

        layout = QVBoxLayout(self)
        layout.addWidget(self.view)
        self.setLayout(layout)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = MyWindow()
    w.show()
    sys.exit(app.exec_())

这样，keyPressEvent被覆盖，什么也没有发生，但是您的双击事件保持不变.

This way, the keyPressEvent is overwritten and nothing happens, but your double click event remains the same.

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