本文整理汇总了Python中PyQt4.Qt.QTreeView.scrollTo方法的典型用法代码示例。如果您正苦于以下问题：Python QTreeView.scrollTo方法的具体用法？Python QTreeView.scrollTo怎么用？Python QTreeView.scrollTo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.QTreeView的用法示例。
在下文中一共展示了QTreeView.scrollTo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: ShortcutConfig
# 需要导入模块: from PyQt4.Qt import QTreeView [as 别名]
# 或者: from PyQt4.Qt.QTreeView import scrollTo [as 别名]
class ShortcutConfig(QWidget): # {{{
changed_signal = pyqtSignal()
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self._layout = l = QGridLayout()
self.setLayout(self._layout)
self.header = QLabel(_('Double click on any entry to change the'
' keyboard shortcuts associated with it'))
l.addWidget(self.header, 0, 0, 1, 3)
self.view = QTreeView(self)
self.view.setAlternatingRowColors(True)
self.view.setHeaderHidden(True)
self.view.setAnimated(True)
l.addWidget(self.view, 1, 0, 1, 3)
self.delegate = Delegate()
self.view.setItemDelegate(self.delegate)
self.delegate.sizeHintChanged.connect(self.editor_opened,
type=Qt.QueuedConnection)
self.delegate.changed_signal.connect(self.changed_signal)
self.search = SearchBox2(self)
self.search.initialize('shortcuts_search_history',
help_text=_('Search for a shortcut by name'))
self.search.search.connect(self.find)
l.addWidget(self.search, 2, 0, 1, 1)
self.nb = QPushButton(QIcon(I('arrow-down.png')), _('&Next'), self)
self.pb = QPushButton(QIcon(I('arrow-up.png')), _('&Previous'), self)
self.nb.clicked.connect(self.find_next)
self.pb.clicked.connect(self.find_previous)
l.addWidget(self.nb, 2, 1, 1, 1)
l.addWidget(self.pb, 2, 2, 1, 1)
l.setColumnStretch(0, 100)
def restore_defaults(self):
self._model.restore_defaults()
self.changed_signal.emit()
def commit(self):
if self.view.state() == self.view.EditingState:
self.delegate.accept_changes()
self._model.commit()
def initialize(self, keyboard):
self._model = ConfigModel(keyboard, parent=self)
self.view.setModel(self._model)
def editor_opened(self, index):
self.view.scrollTo(index, self.view.EnsureVisible)
@property
def is_editing(self):
return self.view.state() == self.view.EditingState
def find(self, query):
if not query:
return
try:
idx = self._model.find(query)
except ParseException:
self.search.search_done(False)
return
self.search.search_done(True)
if not idx.isValid():
info_dialog(self, _('No matches'),
_('Could not find any shortcuts matching %s')%query,
show=True, show_copy_button=False)
return
self.highlight_index(idx)
def highlight_index(self, idx):
self.view.scrollTo(idx)
self.view.selectionModel().select(idx,
self.view.selectionModel().ClearAndSelect)
self.view.setCurrentIndex(idx)
self.view.setFocus(Qt.OtherFocusReason)
def find_next(self, *args):
idx = self.view.currentIndex()
if not idx.isValid():
idx = self._model.index(0, 0)
idx = self._model.find_next(idx,
unicode(self.search.currentText()))
self.highlight_index(idx)
def find_previous(self, *args):
idx = self.view.currentIndex()
if not idx.isValid():
idx = self._model.index(0, 0)
idx = self._model.find_next(idx,
unicode(self.search.currentText()), backwards=True)
self.highlight_index(idx)
def highlight_group(self, group_name):
idx = self.view.model().index_for_group(group_name)
if idx is not None:
self.view.expand(idx)
self.view.scrollTo(idx, self.view.PositionAtTop)
self.view.selectionModel().select(idx,
self.view.selectionModel().ClearAndSelect)
#.........这里部分代码省略.........