我正在创建一个最后包含“条款和条件”协议复选框的应用程序。我想要做的是将文本的某些部分作为超链接，这样当用户单击超链接文本时，它应该打开一个新窗口并在该窗口中显示条款和条件。有什么方法可以帮助我完成这项任务吗？
1 回答
萧十郎
TA贡献1815条经验 获得超13个赞
您可以通过在单击链接时发出 linkActivated 信号的 href 使用 QLabel：
from PyQt5 import QtCore, QtGui, QtWidgets
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
url = "https://github.com/eyllanesc/stackoverflow"
html = '''<a href="{}">Visit my repo</a>'''.format(url)
label = QtWidgets.QLabel(html)
def on_linkActivated(url):
print(url)
QtGui.QDesktopServices.openUrl(QtCore.QUrl(url))
label.linkActivated.connect(on_linkActivated)
label.show()
sys.exit(app.exec_())
您可以创建一个 QMessabox 并将链接包含为 HTML 并通过 linkActivated 信号与单击的内容相交：
from PyQt5 import QtCore, QtGui, QtWidgets
class AboutBox(QtWidgets.QMessageBox):
open_info = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(AboutBox, self).__init__(parent=parent)
terms_and_cond = 'myscheme://myapp/terms_and_cond'
text = "<H1><font color=#fde428>My</font><font color=#002e5b>App</font> Lab</H1>" \
"<H2>subtitle</H2>" \
"<p>See <a href=\"{terms_and_cond}\">terms and conditions".format(terms_and_cond=terms_and_cond)
self.setText(text)
self.setWindowTitle("About MyApp")
msg_label = self.findChild(QtWidgets.QLabel, "qt_msgbox_label")
msg_label.setOpenExternalLinks(False)
msg_label.linkActivated.connect(self.on_linkActivated)
def on_linkActivated(self, url):
if url == "myscheme://myapp/terms_and_cond":
self.open_info.emit()
else:
QtGui.QDesktopServices.openUrl(QtCore.QUrl(url))
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setWindowTitle("MyApp")
self.setCentralWidget(QtWidgets.QTextEdit())
self._about = AboutBox(self)
self._about.open_info.connect(self.info)
help_menu = self.menuBar().addMenu("Help")
about_action = help_menu.addAction("About me")
about_action.triggered.connect(self._about.exec_)
@QtCore.pyqtSlot()
def info(self):
msg = QtWidgets.QMessageBox(self)
msg.setWindowTitle("Terms and Conditions")
msg.setText("<b>MIT License</b><br>" \
"Copyright (c) 2019 eyllanesc<br>" \
"Permission is hereby granted, free of charge, to any person obtaining a copy" \
"of this software and associated documentation files (the \"Software\"), to deal" \
"in the Software without restriction, including without limitation the rights" \
"to use, copy, modify, merge, publish, distribute, sublicense, and/or sell" \
"copies of the Software, and to permit persons to whom the Software is" \
"furnished to do so, subject to the following conditions<br>" \
"<br>" \
"The above copyright notice and this permission notice shall be included in all" \
"copies or substantial portions of the Software.<br>" \
"<br>" \
"THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR" \
"IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY," \
"FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE" \
"AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER" \
"LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM," \
"OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE" \
"SOFTWARE.<br>")
msg.exec_()
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.resize(640, 480)
w.show()
sys.exit(app.exec_())
更新：
如果你想要一个可以使用 HTML 代码的 QCheckbox，诀窍是创建一个 QCheckBox + QLabel，如下所示：
from PyQt5 import QtCore, QtGui, QtWidgets
class AboutBox(QtWidgets.QDialog):
open_license = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(AboutBox, self).__init__(parent)
self._checkbox = QtWidgets.QCheckBox()
self._label = QtWidgets.QLabel()
terms_and_cond = 'myscheme://myapp/license'
self._label.setText("Make sure to read the <a href=\"{}\">Terms and conditions</a>".format(terms_and_cond))
lay = QtWidgets.QVBoxLayout(self)
hlay = QtWidgets.QHBoxLayout(self)
# hlay.setSpacing(0)
hlay.addWidget(self._checkbox)
hlay.addWidget(self._label)
lay.addWidget(QtWidgets.QCheckBox("A"))
lay.addLayout(hlay)
lay.addWidget(QtWidgets.QCheckBox("B"))
self._label.linkActivated.connect(self.open_license)
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setWindowTitle("MyApp")
self.setCentralWidget(QtWidgets.QTextEdit())
self._about = AboutBox(self)
self._about.open_license.connect(self.info)
help_menu = self.menuBar().addMenu("Help")
about_action = help_menu.addAction("About me")
about_action.triggered.connect(self._about.exec_)
@QtCore.pyqtSlot()
def info(self):
msg = QtWidgets.QMessageBox(self)
msg.setWindowTitle("Terms and Conditions")
msg.setText("<b>MIT License</b><br>" \
"Copyright (c) 2019 eyllanesc<br>" \
"Permission is hereby granted, free of charge, to any person obtaining a copy" \
"of this software and associated documentation files (the \"Software\"), to deal" \
"in the Software without restriction, including without limitation the rights" \
"to use, copy, modify, merge, publish, distribute, sublicense, and/or sell" \
"copies of the Software, and to permit persons to whom the Software is" \
"furnished to do so, subject to the following conditions<br>" \
"<br>" \
"The above copyright notice and this permission notice shall be included in all" \
"copies or substantial portions of the Software.<br>" \
"<br>" \
"THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR" \
"IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY," \
"FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE" \
"AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER" \
"LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM," \
"OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE" \
"SOFTWARE.<br>")
msg.exec_()
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
app.setStyle('fusion')
w = MainWindow()
w.resize(640, 480)
w.show()
sys.exit(app.exec_())
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