我有一个奇怪的问题,我正在为聊天机器人创建一个GUI,我选择了PyQt5设计器。一切都很顺利,但现在我实现了一些超链接,并意识到当我在QTextBrowser中单击具有不同字体的行时,所有聊天机器人响应都会更改为该字体。 例如,如果我点击一个链接,之后的每个答案都会被超链接
代码片段:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_mainWindow(object):
def setupUi(self, mainWindow):
mainWindow.setObjectName("mainWindow")
mainWindow.resize(812, 577)
self.centralwidget = QtWidgets.QWidget(mainWindow)
self.centralwidget.setObjectName("centralwidget")
#Browse Button
self.browseButton = QtWidgets.QPushButton(self.centralwidget)
self.browseButton.setGeometry(QtCore.QRect(690, 480, 101, 61))
self.browseButton.setObjectName("browseButton")
#TextBrowser (big window)
self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
self.textBrowser.setGeometry(QtCore.QRect(20, 20, 581, 471))
self.textBrowser.setObjectName("textBrowser")
self.textBrowser.setFontFamily("monospace")
self.textBrowser.setFont(QtGui.QFont("monospace",11))
self.textBrowser.setOpenExternalLinks(True)
#Line Edit - small line for user input
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(20, 500, 581, 41))
self.lineEdit.setObjectName("lineEdit")
self.lineEdit.returnPressed.connect(self.run)
self.lineEdit.setPlaceholderText("Ask me anything...")
#Anton's Avatar
self.avatarLabel = QtWidgets.QLabel(self.centralwidget)
self.avatarLabel.setGeometry(QtCore.QRect(610, 20, 191, 251))
self.avatarLabel.setFrameShape(QtWidgets.QFrame.Box)
self.avatarLabel.setText("")
self.avatarLabel.setPixmap(QtGui.QPixmap("Anton.jpg"))
self.avatarLabel.setObjectName("avatarLabel")
#Send button and Yes/No Dialog
self.buttonBox = QtWidgets.QDialogButtonBox(self.centralwidget)
self.buttonBox.setGeometry(QtCore.QRect(400, 440, 193, 28))
self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
self.buttonBox.setObjectName("buttonBox")
self.sendButton = QtWidgets.QPushButton(self.centralwidget)
self.sendButton.setGeometry(QtCore.QRect(610, 480, 71, 61))
self.sendButton.setObjectName("sendButton")
self.sendButton.clicked.connect(self.run)
self.sendButton.clicked.connect(self.lineEdit.clear)
self.buttonBox.raise_()
self.browseButton.raise_()
self.textBrowser.raise_()
self.lineEdit.raise_()
self.avatarLabel.raise_()
self.sendButton.raise_()
mainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(mainWindow)
self.statusbar.setObjectName("statusbar")
mainWindow.setStatusBar(self.statusbar)
self.retranslateUi(mainWindow)
self.lineEdit.returnPressed.connect(self.lineEdit.clear)
self.sendButton.clicked.connect(self.lineEdit.copy)
QtCore.QMetaObject.connectSlotsByName(mainWindow)
def retranslateUi(self, mainWindow):
_translate = QtCore.QCoreApplication.translate
mainWindow.setWindowTitle(_translate("mainWindow", "Chatbot"))
self.textBrowser.setHtml(_translate("mainWindow", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:7.8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\"-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><br /></p></body></html>"))
self.sendButton.setText(_translate("mainWindow", "Send"))
def gettext(self): # Get text from user input text line
text = self.lineEdit.text()
return text
def answerr(self,text): # Print result to text browser
self.textBrowser.append(str(text))
def run(self):
#get user input
try:
userInput = self.gettext()
user = '<span style=\" color: #ff0000;\">%s</span>' % userInput
self.answerr("> "+user)
except (KeyboardInterrupt, EOFError) as e:
answerr("Bye!")
rec_video="https://www.youtube.com/watch?v=Z6MqOw2y744"
self.textBrowser.append("\nYou can find a video with the instructions on the link below.")
self.textBrowser.append(str("<a href=\""+rec_video+"\">'Youtube Link'</a>"))
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_())
任何帮助都将不胜感激。 另外,如果我点击用户输入(红色字体),所有即将到来的聊天机器人响应也会变成红色。 我找到的唯一一半解决方案是使用QTextCursor.Start,但这会在每个问题后向上滚动
问题是,当您单击链接时,该格式被设置为当前格式,因此添加文本将使用该格式,一个可能的解决方案是将格式重置为按下链接之前的值(我已花时间使用布局改进您的示例)
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