双击右键侦听器QTableWidget

Question

我有一个pyqt5 qtableWidget，我想检测双击事件。

这是我的'design.py'模块：

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_())

以及我的" main.py"模块：

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_())

我尝试通过在main.py模块中使用mouseDoubleClickEvent来设置事件；但是，只有在单击表外的主窗口的区域单击时，单击才会注册。

我还考虑过使用Connect（如Design.py所示），但是我不知道如何检查是否在没有鼠标事件的情况下单击右鼠标按钮 - 我不确定是否确定我有可能获得鼠标活动。我只想做到这一点，以便当用户双击我的表中的单元格（tblBoxes）时，我可以检测到事件。

我提出的任何一种方法都可以吗？我正在使用QT设计师，因此侵入性较小，解决方案越好。

Answer 1

您可以使用事件过滤器观看MouseButtonDblClick事件：

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)