我在QTableView
中有两个QMainWindow
,我想在其中一个上创建一个上下文菜单,然后在另一个上创建另一个上下文菜单。
创建上下文菜单并定义动作到目前为止,可以正常工作。但是上下文菜单会在整个应用程序内的任何地方弹出。我不知道如何将其限制为仅一张特定的桌子。我认为这与contextMenuEvent()
的成员QMainWindow
有关,但我不知道如何更改此部分。尝试创建继承QTableView
的自定义类没有用,因为我不确定从哪里开始。
这是我尝试过的:
populate_table_1()
和populate_table_2()
方法仅用于将一些数据填充到表中。 get_selected_item_TV1()
方法从table_1
行中获取必要的数据。 delete_file()
方法是我想从contextMenuEvent()
方法调用删除操作时想要做的一个例子。到目前为止,此代码仍然有效,但是我只想在右键单击table_1
的行时弹出上下文菜单,并且右键单击其他位置根本不显示该菜单。
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
data_1 = ["file_name", "file_infos"]
data_2 = ["other_stuff_1", "other_stuff_2"]
class Ui_MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle("MyApp")
self.resize(450, 280)
centralwidget = QWidget(self)
#]===================================================================[#
# table_1
table_1 = QTableView(
centralwidget,
selectionBehavior=QAbstractItemView.SelectRows,
editTriggers=QAbstractItemView.NoEditTriggers
)
# table_1 models
self.modelTV1 = QStandardItemModel(0, 2, centralwidget)
self.modelTV1.setHorizontalHeaderLabels(["column 1", "column 2"])
table_1.setModel(self.modelTV1)
self.selectionModelTV1 = table_1.selectionModel()
#]===================================================================[#
# table_2
table_2 = QTableView(
centralwidget,
selectionBehavior=QAbstractItemView.SelectRows,
editTriggers=QAbstractItemView.NoEditTriggers,
)
# table_2 models
self.modelTV2 = QStandardItemModel(0, 2, centralwidget)
self.modelTV2.setHorizontalHeaderLabels(["column 1", "column 2"])
table_2.setModel(self.modelTV2)
self.selectionModelTV2 = table_2.selectionModel()
v_Layout1 = QVBoxLayout()
v_Layout1.addWidget(table_1)
v_Layout1.addWidget(table_2)
gridLayout = QGridLayout(centralwidget)
gridLayout.addLayout(v_Layout1, 0, 0, 1, 1)
self.setCentralWidget(centralwidget)
def populate_table_1(self):
self.modelTV1.setRowCount(0)
for item in data_1:
self.modelTV1.insertRow(0)
for i, text in enumerate(data_1):
self.modelTV1.setItem(0, i, QStandardItem(text))
def populate_table_2(self):
self.modelTV2.setRowCount(0)
for item in data_2:
self.modelTV2.insertRow(0)
for i, text in enumerate(data_2):
self.modelTV2.setItem(0, i, QStandardItem(text))
def contextMenuEvent(self, event):
self.contextMenu = QMenu(self)
deleteAction = QAction("Delete", self)
self.contextMenu.addAction(deleteAction)
deleteAction.triggered.connect(lambda: self.delete_file(event))
self.contextMenu.popup(QCursor.pos())
def get_selected_item_TV1(self):
# get the row's text from the first column in table_1
listed_items = self.selectionModelTV1.selectedRows()
for index in listed_items:
selected_item = index.data()
return f"table_1 - row_{index.row()} - {selected_item}"
def delete_file(self, event):
item = self.get_selected_item_TV1()
print(f"Deleting: {item}")
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
mainUI = Ui_MainWindow()
mainUI.populate_table_1()
mainUI.populate_table_2()
mainUI.show()
sys.exit(app.exec_())
有很多选择:
检测到按下鼠标时它在某个区域中,例如第一个QTableView。在这种情况下,必须可以在contextMenuEvent()中访问该小部件,因此必须将table_1
更改为self.table_1
,然后使用underMouse)):
def contextMenuEvent(self, event):
if self.table_1.underMouse():
self.contextMenu = QMenu(self)
deleteAction = QAction("Delete", self)
self.contextMenu.addAction(deleteAction)
deleteAction.triggered.connect(lambda: self.delete_file(event))
self.contextMenu.popup(QCursor.pos())
为每个QTableView实现contextMenuEvent方法:
class TableView(QTableView):
def contextMenuEvent(self, event):
self.contextMenu = QMenu(self)
deleteAction = QAction("Delete", self)
self.contextMenu.addAction(deleteAction)
deleteAction.triggered.connect(lambda: self.delete_file(event))
self.contextMenu.popup(QCursor.pos())
def get_selected_item_TV1(self):
# get the row's text from the first column in table_1
listed_items = self.selectionModel().selectedRows()
for index in listed_items:
selected_item = index.data()
return f"table_1 - row_{index.row()} - {selected_item}"
def delete_file(self, event):
item = self.get_selected_item_TV1()
print(f"Deleting: {item}")
然后您必须将table_1 = QTableView(...
更改为table_1 = TableView(...