本文整理汇总了Python中PyQt4.Qt.QTextEdit.clear方法的典型用法代码示例。如果您正苦于以下问题：Python QTextEdit.clear方法的具体用法？Python QTextEdit.clear怎么用？Python QTextEdit.clear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PyQt4.Qt.QTextEdit的用法示例。
在下文中一共展示了QTextEdit.clear方法的2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: PrefsViewerDialog
# 需要导入模块: from PyQt4.Qt import QTextEdit [as 别名]
# 或者: from PyQt4.Qt.QTextEdit import clear [as 别名]
class PrefsViewerDialog(SizePersistedDialog):
def __init__(self, gui, namespace):
SizePersistedDialog.__init__(self, gui, 'Prefs Viewer dialog')
self.setWindowTitle('Preferences for: '+namespace)
self.db = gui.current_db
self.namespace = namespace
self._init_controls()
self.resize_dialog()
self._populate_settings()
if self.keys_list.count():
self.keys_list.setCurrentRow(0)
def _init_controls(self):
layout = QVBoxLayout(self)
self.setLayout(layout)
ml = QHBoxLayout()
layout.addLayout(ml, 1)
self.keys_list = QListWidget(self)
self.keys_list.setSelectionMode(QAbstractItemView.SingleSelection)
self.keys_list.setFixedWidth(150)
self.keys_list.setAlternatingRowColors(True)
ml.addWidget(self.keys_list)
self.value_text = QTextEdit(self)
self.value_text.setTabStopWidth(24)
self.value_text.setReadOnly(True)
ml.addWidget(self.value_text, 1)
button_box = QDialogButtonBox(QDialogButtonBox.Ok)
button_box.accepted.connect(self.accept)
button_box.setCenterButtons(True)
layout.addWidget(button_box)
def _populate_settings(self):
self.keys_list.clear()
ns_prefix = 'namespaced:%s:'% self.namespace
keys = sorted([k[len(ns_prefix):] for k in self.db.prefs.iterkeys()
if k.startswith(ns_prefix)])
for key in keys:
self.keys_list.addItem(key)
self.keys_list.setMinimumWidth(self.keys_list.sizeHintForColumn(0))
self.keys_list.currentRowChanged[int].connect(self._current_row_changed)
def _current_row_changed(self, new_row):
if new_row < 0:
self.value_text.clear()
return
key = unicode(self.keys_list.currentItem().text())
val = self.db.prefs.get_namespaced(self.namespace, key, '')
self.value_text.setPlainText(self.db.prefs.to_raw(val))
示例2: PrefsViewerDialog
# 需要导入模块: from PyQt4.Qt import QTextEdit [as 别名]
# 或者: from PyQt4.Qt.QTextEdit import clear [as 别名]
class PrefsViewerDialog(SizePersistedDialog):
def __init__(self, gui, namespace):
SizePersistedDialog.__init__(self, gui, 'Prefs Viewer dialog')
self.setWindowTitle('Preferences for: '+namespace)
self.gui = gui
self.db = gui.current_db
self.namespace = namespace
self._init_controls()
self.resize_dialog()
self._populate_settings()
if self.keys_list.count():
self.keys_list.setCurrentRow(0)
def _init_controls(self):
layout = QVBoxLayout(self)
self.setLayout(layout)
ml = QHBoxLayout()
layout.addLayout(ml, 1)
self.keys_list = QListWidget(self)
self.keys_list.setSelectionMode(QAbstractItemView.SingleSelection)
self.keys_list.setFixedWidth(150)
self.keys_list.setAlternatingRowColors(True)
ml.addWidget(self.keys_list)
self.value_text = QTextEdit(self)
self.value_text.setTabStopWidth(24)
self.value_text.setReadOnly(True)
ml.addWidget(self.value_text, 1)
button_box = QDialogButtonBox(QDialogButtonBox.Ok)
button_box.accepted.connect(self.accept)
self.clear_button = button_box.addButton('Clear', QDialogButtonBox.ResetRole)
self.clear_button.setIcon(get_icon('trash.png'))
self.clear_button.setToolTip('Clear all settings for this plugin')
self.clear_button.clicked.connect(self._clear_settings)
layout.addWidget(button_box)
def _populate_settings(self):
self.keys_list.clear()
ns_prefix = self._get_ns_prefix()
keys = sorted([k[len(ns_prefix):] for k in self.db.prefs.iterkeys()
if k.startswith(ns_prefix)])
for key in keys:
self.keys_list.addItem(key)
self.keys_list.setMinimumWidth(self.keys_list.sizeHintForColumn(0))
self.keys_list.currentRowChanged[int].connect(self._current_row_changed)
def _current_row_changed(self, new_row):
if new_row < 0:
self.value_text.clear()
return
key = unicode(self.keys_list.currentItem().text())
val = self.db.prefs.get_namespaced(self.namespace, key, '')
self.value_text.setPlainText(self.db.prefs.to_raw(val))
def _get_ns_prefix(self):
return 'namespaced:%s:'% self.namespace
def _clear_settings(self):
from calibre.gui2.dialogs.confirm_delete import confirm
message = '<p>Are you sure you want to clear your settings in this library for this plugin?</p>' \
'<p>Any settings in other libraries or stored in a JSON file in your calibre plugins ' \
'folder will not be touched.</p>' \
'<p>You must restart calibre afterwards.</p>'
if not confirm(message, self.namespace+'_clear_settings', self):
return
ns_prefix = self._get_ns_prefix()
keys = [k for k in self.db.prefs.iterkeys() if k.startswith(ns_prefix)]
for k in keys:
del self.db.prefs[k]
self._populate_settings()
d = info_dialog(self, 'Settings deleted',
'<p>All settings for this plugin in this library have been cleared.</p>'
'<p>Please restart calibre now.</p>',
show_copy_button=False)
b = d.bb.addButton(_('Restart calibre now'), d.bb.AcceptRole)
b.setIcon(QIcon(I('lt.png')))
d.do_restart = False
def rf():
d.do_restart = True
b.clicked.connect(rf)
d.set_details('')
d.exec_()
b.clicked.disconnect()
self.close()
if d.do_restart:
self.gui.quit(restart=True)