python - 单击事件在 pyside 的 textedit 中不起作用

Question

我类有这样的代码

 self.textEdit = QtGui.QTextEdit(self.centralwidget)
 self.textEdit.setGeometry(QtCore.QRect(30, 20, 351, 51))
 self.textEdit.setObjectName("textEdit")
 QtCore.QObject.connect(self.textEdit, QtCore.SIGNAL("clicked()"), self.text_click)
 QtCore.QObject.connect(self.textEdit, QtCore.SIGNAL("textChanged()"), self.text_change)
 def text_change(self):
     print "change ok"
 def text_click(self):
     print "clicked ok 

在我的代码中，文本更改事件工作正常。但是点击事件不起作用。我如何检测 textedit 小部件中的点击事件？

Answer 1

我不确定这是正确的方法。您可以使用 mousePressEvent:

import sys
from PyQt4 import QtGui, QtCore

def text_change():
    print "change ok"
def text_click(event): # <--- NOTE: event object is passed.
    print "clicked ok "

app = QtGui.QApplication(sys.argv)
textEdit = QtGui.QTextEdit()
textEdit.setGeometry(QtCore.QRect(30, 20, 351, 51))
textEdit.setObjectName("textEdit")
textEdit.mousePressEvent = text_click
QtCore.QObject.connect(textEdit, QtCore.SIGNAL("textChanged()"), text_change)
textEdit.show()
sys.exit(app.exec_())

使用 PyQt 4.10.2 测试。 (窗口 7，Python 2.7.5)

更新

mousePressEvent 也适用于 PyQt5。

import sys
from PyQt5 import QtCore, QtWidgets

def text_change():
    print("change ok")
def text_click(event):
    print("clicked ok ")

app = QtWidgets.QApplication(sys.argv)
textEdit = QtWidgets.QTextEdit()
textEdit.setGeometry(QtCore.QRect(30, 20, 351, 51))
textEdit.setObjectName("textEdit")
textEdit.mousePressEvent = text_click
textEdit.textChanged.connect(text_change)
textEdit.show()
sys.exit(app.exec_())

使用 PyQt 5.0(Windows 7、Python 3.3.2)测试