使用PySide中的^{
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Modules
# ------------------------------------------------------------------------------
import sys
from PySide import QtGui, QtCore
# Variables
# ------------------------------------------------------------------------------
listItems = ["A","B","C","D","E","F","G"]
# widget
# ------------------------------------------------------------------------------
class Example(QtGui.QWidget):
def __init__(self,):
super(Example, self).__init__()
self.initUI()
def initUI(self):
# formatting
self.setGeometry(300, 300, 250, 300)
self.setWindowTitle("Input List")
# widgets
self.itemList = QtGui.QListWidget()
self.itemList.addItems(listItems)
self.itemList.setSelectionMode(QtGui.QAbstractItemView.ExtendedSelection)
# context menu
self.edit_menu = QtGui.QMenu()
removeItem = self.edit_menu.addAction('Remove Item')
removeItem.triggered.connect(self.RemoveItem)
editItem = self.edit_menu.addAction('Edit Item')
editItem.triggered.connect(self.EditItem)
self.itemList.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.itemList.customContextMenuRequested.connect(self.on_context_menu)
self.itemList.itemDoubleClicked.connect(self.EditItem)
# layout
self.mainLayout = QtGui.QGridLayout(self)
self.mainLayout.addWidget(self.itemList, 0, 0)
self.show()
def on_context_menu(self, pos):
self.edit_menu.exec_(self.mapToGlobal(pos))
def EditItem(self):
print "Edit Item"
def RemoveItem(self):
print "Remove Item"
# Main
# ------------------------------------------------------------------------------
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
您需要进行一些更改,但是可以通过禁用^{} 来完成此操作。在
首先,使您的
editItem
变量在整个类中都可访问。在(为了保持一致性,您也可以对
remoteItem
执行此操作)接下来,在
^{pr2}$on_context_menu
中,您需要检查您选择了多少项。然后根据该逻辑启用/禁用菜单选项:示例:
只选择了一个项目:
选择了多个项目:
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