问题
I have a PyQt5 QTableWidget for which I want to detect double-right-click events.
Here is my 'design.py' module:
from PyQt5 import QtCore, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(790, 472)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.tbwMain = QtWidgets.QTabWidget(self.centralwidget)
self.tbwMain.setGeometry(QtCore.QRect(0, 0, 801, 451))
self.tbwMain.setObjectName("tbwMain")
self.tabBoxes = QtWidgets.QWidget()
self.tabBoxes.setObjectName("tabBoxes")
self.horizontalLayoutWidget = QtWidgets.QWidget(self.tabBoxes)
self.horizontalLayoutWidget.setGeometry(QtCore.QRect(0, 0, 791, 421))
self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
spacerItem = QtWidgets.QSpacerItem(220, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.horizontalLayout.addItem(spacerItem)
self.tblBoxes = QtWidgets.QTableWidget(self.horizontalLayoutWidget)
self.tblBoxes.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
self.tblBoxes.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
self.tblBoxes.setRowCount(1)
self.tblBoxes.setObjectName("tblBoxes")
self.tblBoxes.setColumnCount(3)
item = QtWidgets.QTableWidgetItem()
self.tblBoxes.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.tblBoxes.setHorizontalHeaderItem(1, item)
item = QtWidgets.QTableWidgetItem()
self.tblBoxes.setHorizontalHeaderItem(2, item)
item = QtWidgets.QTableWidgetItem()
item.setTextAlignment(QtCore.Qt.AlignCenter)
self.tblBoxes.setItem(0, 0, item)
item = QtWidgets.QTableWidgetItem()
item.setTextAlignment(QtCore.Qt.AlignCenter)
self.tblBoxes.setItem(0, 1, item)
item = QtWidgets.QTableWidgetItem()
item.setTextAlignment(QtCore.Qt.AlignCenter)
self.tblBoxes.setItem(0, 2, item)
self.tblBoxes.horizontalHeader().setStretchLastSection(True)
self.tblBoxes.verticalHeader().setVisible(False)
self.horizontalLayout.addWidget(self.tblBoxes)
spacerItem1 = QtWidgets.QSpacerItem(220, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.horizontalLayout.addItem(spacerItem1)
self.tbwMain.addTab(self.tabBoxes, "")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
self.tbwMain.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
# - - - - -
self.tblBoxes.doubleClicked.connect(self.tblMouseDoubleClick)
def tblMouseDoubleClick(self):
pass #Get event somehow?
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
As well as my 'main.py' module:
from PyQt5 import QtCore, QtGui, QtWidgets
from design import Ui_MainWindow
import shared.components.tables as tbl
from unshared import boxes as bxs
import switch as swb
stop_threads = False
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, *args, **kwargs):
QtWidgets.QMainWindow.__init__(self, *args, **kwargs)
self.setupUi(self)
load(self)
def mouseDoubleClickEvent(self, QMouseEvent):
if event.type() == QtCore.QEvent.MouseButtonPress:
if event.button() == QtCore.Qt.RightButton:
print('Double right-click!')
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
I've tried setting up the event by using mouseDoubleClickEvent
in the main.py module; however, the clicks only register when clicking in areas of the main window outside of the table.
I've also considered using connect (as shown in design.py), but I don't know how to check to see if the right mouse button is being clicked without the mouse event - and I'm not sure if it is possible for me to get the mouse event. I just want to make it so that when the user double-right-clicks on a cell in my table (tblBoxes
) I can detect the event.
Is this possible with either of the methods I've proposed? I'm using Qt Designer, so the less invasive the solution the better.
回答1:
You can use an event-filter to watch for a MouseButtonDblClick
event:
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, *args, **kwargs):
...
self.tblBoxes.viewport().installEventFilter(self)
def eventFilter(self, source, event):
if (event.type() == QtCore.QEvent.MouseButtonDblClick and
event.buttons() == QtCore.Qt.RightButton and
source is self.tblBoxes.viewport()):
item = self.tblBoxes.itemAt(event.pos())
if item is not None:
print('dblclick:', item.row(), item.column())
return super(MainWindow, self).eventFilter(source, event)
来源:https://stackoverflow.com/questions/47960494/double-right-click-listener-for-a-qtablewidget