[英]PyDesigner PyQt5 MouseEvent Not working setMouseTracking(True)
How to let MouseEvent working?如何让 MouseEvent 工作?
I try to print mouse tracking to label x,y coordinate but always fail.我尝试打印鼠标跟踪以标记 x,y 坐标但总是失败。 I already using
setMouseTracking(True)
, generate from QtDesigner ui to py.我已经在使用
setMouseTracking(True)
,从 QtDesigner ui 生成到 py。
code Below:代码如下:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(640, 480)
Form.setMouseTracking(True)
self.label = QtWidgets.QLabel(Form)
self.label.setGeometry(QtCore.QRect(270, 190, 58, 15))
self.label.setObjectName("label")
self.label.setMouseTracking(True)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.label.setText(_translate("Form", "TextLabel"))
def mouseMoveEvent(self, e):
x = e.x()
y = e.y()
text = "x: {0}, y: {1}".format(x, y)
self.label.setText(text)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Form = QtWidgets.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
Form.show()
sys.exit(app.exec_())
Ui_Form is not a widget, so it will not have the mouseMoveEvent method, as the PyQt docs point out you must create a class that inherits the appropriate widget, in this case QWidget, and use the interface provided by Qt Designer: Ui_Form 不是小部件,因此它不会有 mouseMoveEvent 方法,正如PyQt 文档指出的那样,您必须创建一个继承适当小部件的类,在本例中为 QWidget,并使用 Qt 设计器提供的接口:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(640, 480)
Form.setMouseTracking(True)
self.label = QtWidgets.QLabel(Form)
self.label.setGeometry(QtCore.QRect(270, 190, 58, 15))
self.label.setObjectName("label")
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.label.setText(_translate("Form", "TextLabel"))
class Form(QtWidgets.QWidget, Ui_Form):
def __init__(self, parent=None):
super(Form, self).__init__(parent)
self.setupUi(self)
self.setMouseTracking(True)
def mouseMoveEvent(self, e):
text = "x: {0}, y: {1}".format(e.x(), e.y())
self.label.setText(text)
self.label.adjustSize()
super(Form, self).mouseMoveEvent(e)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = Form()
w.show()
sys.exit(app.exec_())
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