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PyQT:禁用鼠标左键单击

mouseevent mouse overriding pyqt qt

0

speedyTeh · 技术社区 · 13 年前

有没有办法禁用(和覆盖)Qt中的鼠标左键点击?更好的是,在PyQt中。我在小部件类中写了这样的东西:

def mousePressEvent(self,event): 
    if event.button() == QtCore.Qt.RightButton:
        print "left"

还尝试了以下内容:

    def eventFilter(self, source, event):

        if event.type()==QtCore.QEvent.MouseButtonPress:
            if event.button() == QtCore.Qt.LeftButton:
                print "left"

...
app.installEventFilter(ui)

但只有当我在左键单击没有任何作用的地方单击时,例如在表单背景上,才会执行此操作。当我点击按钮时,鼠标左键表现正常,“left”不打印。我错过了什么?提前谢谢!

1 回复 | 直到 13 年前

1

2

warvariuc 13 年前

这对我来说很有效:

# coding: utf-8
import sys

from PyQt4 import QtCore, QtGui


class MyDialog(QtGui.QDialog):
    def __init__(self, parent=None):
        super(MyDialog, self).__init__(parent)

        self.button1 = QtGui.QPushButton("Button 1")
        self.button2 = QtGui.QPushButton("Button 2")

        hbox = QtGui.QHBoxLayout()
        hbox.addWidget(self.button1)
        hbox.addWidget(self.button2)
        self.setLayout(hbox)

        self.button1.clicked.connect(self.on_button_clicked)
        self.button2.clicked.connect(self.on_button_clicked)

        self.button1.installEventFilter(self)

    def eventFilter(self, obj, event):
        if event.type() in (QtCore.QEvent.MouseButtonPress,
                            QtCore.QEvent.MouseButtonDblClick):
            if event.button() == QtCore.Qt.LeftButton:
                print "left"
                return True
        return super(MyDialog, self).eventFilter(obj, event)

    def on_button_clicked(self):
        print('on_button_clicked')


if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    w = MyDialog()
    w.show()
    sys.exit(app.exec_())