本文整理汇总了Python中spyderlib.qt.QtGui.QLineEdit.setPlaceholderText方法的典型用法代码示例。如果您正苦于以下问题：Python QLineEdit.setPlaceholderText方法的具体用法？Python QLineEdit.setPlaceholderText怎么用？Python QLineEdit.setPlaceholderText使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类spyderlib.qt.QtGui.QLineEdit的用法示例。
在下文中一共展示了QLineEdit.setPlaceholderText方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: KernelConnectionDialog
# 需要导入模块: from spyderlib.qt.QtGui import QLineEdit [as 别名]
# 或者: from spyderlib.qt.QtGui.QLineEdit import setPlaceholderText [as 别名]
class KernelConnectionDialog(QDialog):
"""Dialog to connect to existing kernels (either local or remote)"""
def __init__(self, parent=None):
super(KernelConnectionDialog, self).__init__(parent)
self.setWindowTitle(_('Connect to an existing kernel'))
main_label = QLabel(_("Please enter the connection info of the kernel "
"you want to connect to. For that you can "
"either select its JSON connection file using "
"the <tt>Browse</tt> button, or write directly "
"its id, in case it's a local kernel (for "
"example <tt>kernel-3764.json</tt> or just "
"<tt>3764</tt>)."))
main_label.setWordWrap(True)
main_label.setAlignment(Qt.AlignJustify)
# connection file
cf_label = QLabel(_('Connection info:'))
self.cf = QLineEdit()
self.cf.setPlaceholderText(_('Path to connection file or kernel id'))
self.cf.setMinimumWidth(250)
cf_open_btn = QPushButton(_('Browse'))
self.connect(cf_open_btn, SIGNAL('clicked()'),
self.select_connection_file)
cf_layout = QHBoxLayout()
cf_layout.addWidget(cf_label)
cf_layout.addWidget(self.cf)
cf_layout.addWidget(cf_open_btn)
# remote kernel checkbox
self.rm_cb = QCheckBox(_('This is a remote kernel'))
# ssh connection
self.hn = QLineEdit()
self.hn.setPlaceholderText(_('[email protected]:port'))
self.kf = QLineEdit()
self.kf.setPlaceholderText(_('Path to ssh key file'))
kf_open_btn = QPushButton(_('Browse'))
self.connect(kf_open_btn, SIGNAL('clicked()'), self.select_ssh_key)
kf_layout = QHBoxLayout()
kf_layout.addWidget(self.kf)
kf_layout.addWidget(kf_open_btn)
self.pw = QLineEdit()
self.pw.setPlaceholderText(_('Password or ssh key passphrase'))
self.pw.setEchoMode(QLineEdit.Password)
ssh_form = QFormLayout()
ssh_form.addRow(_('Host name'), self.hn)
ssh_form.addRow(_('Ssh key'), kf_layout)
ssh_form.addRow(_('Password'), self.pw)
# Ok and Cancel buttons
accept_btns = QDialogButtonBox(
QDialogButtonBox.Ok | QDialogButtonBox.Cancel,
Qt.Horizontal, self)
self.connect(accept_btns, SIGNAL('accepted()'), self.accept)
self.connect(accept_btns, SIGNAL('rejected()'), self.reject)
# Dialog layout
layout = QVBoxLayout(self)
layout.addWidget(main_label)
layout.addLayout(cf_layout)
layout.addWidget(self.rm_cb)
layout.addLayout(ssh_form)
layout.addWidget(accept_btns)
# remote kernel checkbox enables the ssh_connection_form
def ssh_set_enabled(state):
for wid in [self.hn, self.kf, kf_open_btn, self.pw]:
wid.setEnabled(state)
for i in range(ssh_form.rowCount()):
ssh_form.itemAt(2 * i).widget().setEnabled(state)
ssh_set_enabled(self.rm_cb.checkState())
self.connect(self.rm_cb, SIGNAL('stateChanged(int)'), ssh_set_enabled)
def select_connection_file(self):
cf = getopenfilename(self, _('Open IPython connection file'),
osp.join(get_ipython_dir(), 'profile_default', 'security'),
'*.json;;*.*')[0]
self.cf.setText(cf)
def select_ssh_key(self):
kf = getopenfilename(self, _('Select ssh key'),
get_ipython_dir(), '*.pem;;*.*')[0]
self.kf.setText(kf)
@staticmethod
def get_connection_parameters(parent=None):
dialog = KernelConnectionDialog(parent)
result = dialog.exec_()
is_remote = bool(dialog.rm_cb.checkState())
accepted = result == QDialog.Accepted
if is_remote:
#.........这里部分代码省略.........