[PyQt6] PartⅡ. FontComboBox

FontComboBox

关键代码

# connect signal
self.fontComboBox.currentFontChanged.connect(self.change_type)
# 如果ComboBox中，currentFontChanged，那么发送信号，然后获取到Index，通过Index获取当前字体名，然后通过QFont更改字体
myFont = QFont(self.fontComboBox.itemText(self.fontComboBox.currentIndex())) 

完整代码

# Form implementation generated from reading ui file 'FontComboBox.ui'
#
# Created by: PyQt6 UI code generator 6.3.0
#
# WARNING: Any manual changes made to this file will be lost when pyuic6 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt6 import QtCore, QtGui, QtWidgets
from PyQt6.QtGui import QFont


class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(400, 300)
        self.verticalLayout = QtWidgets.QVBoxLayout(Form)
        self.verticalLayout.setObjectName("verticalLayout")
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.label = QtWidgets.QLabel(Form)
        self.label.setObjectName("label")
        self.horizontalLayout.addWidget(self.label)
        self.fontComboBox = QtWidgets.QFontComboBox(Form)
        self.fontComboBox.setObjectName("fontComboBox")

        # connect signal
        self.fontComboBox.currentFontChanged.connect(self.change_type)

        self.horizontalLayout.addWidget(self.fontComboBox)
        self.verticalLayout.addLayout(self.horizontalLayout)
        self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.label_2 = QtWidgets.QLabel(Form)
        self.label_2.setObjectName("label_2")
        self.horizontalLayout_2.addWidget(self.label_2)
        spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Minimum)
        self.horizontalLayout_2.addItem(spacerItem)
        self.textEdit = QtWidgets.QTextEdit(Form)
        self.textEdit.setObjectName("textEdit")
        self.horizontalLayout_2.addWidget(self.textEdit)
        self.verticalLayout.addLayout(self.horizontalLayout_2)

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def change_type(self):
        myFont = QFont(self.fontComboBox.itemText(self.fontComboBox.currentIndex()))
        self.textEdit.setFont(myFont)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.label.setText(_translate("Form", "font"))
        self.label_2.setText(_translate("Form", "textTable"))


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())

程序截图