本文整理汇总了Python中PyQt5.QtWidgets.QTreeWidget.mapToGlobal方法的典型用法代码示例。如果您正苦于以下问题：Python QTreeWidget.mapToGlobal方法的具体用法？Python QTreeWidget.mapToGlobal怎么用？Python QTreeWidget.mapToGlobal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PyQt5.QtWidgets.QTreeWidget的用法示例。
在下文中一共展示了QTreeWidget.mapToGlobal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: PugdebugExpressionViewer
# 需要导入模块: from PyQt5.QtWidgets import QTreeWidget [as 别名]
# 或者: from PyQt5.QtWidgets.QTreeWidget import mapToGlobal [as 别名]
class PugdebugExpressionViewer(QWidget):
expression_added_signal = pyqtSignal(int, str)
expression_changed_signal = pyqtSignal(int, str)
def __init__(self):
super(PugdebugExpressionViewer, self).__init__()
# Action for adding a new expression
self.add_action = QAction(QIcon.fromTheme('list-add'), "&Add", self)
self.add_action.triggered.connect(self.handle_add_action)
# Action for deleting selected expressions
self.delete_action = QAction(
QIcon.fromTheme('list-remove'),
"&Delete", self
)
self.delete_action.setShortcut(QKeySequence("Del"))
self.delete_action.triggered.connect(self.handle_delete_action)
self.toolbar = QToolBar()
self.toolbar.setIconSize(QSize(16, 16))
self.toolbar.addAction(self.add_action)
self.toolbar.addAction(self.delete_action)
self.tree = QTreeWidget()
self.tree.setColumnCount(3)
self.tree.setHeaderLabels(['Expression', 'Type', 'Value'])
self.tree.setSelectionMode(QAbstractItemView.ContiguousSelection)
self.tree.setContextMenuPolicy(Qt.CustomContextMenu)
self.tree.customContextMenuRequested.connect(self.show_context_menu)
layout = QVBoxLayout()
layout.addWidget(self.toolbar)
layout.addWidget(self.tree)
self.setLayout(layout)
self.restore_state()
self.tree.itemChanged.connect(self.handle_item_changed)
def show_context_menu(self, point):
# Create the context menu on the tree widget
context_menu = QMenu(self)
# Add action is always visible
context_menu.addAction(self.add_action)
# If clicked on an row, offer to delete it
if self.tree.itemAt(point):
context_menu.addAction(self.delete_action)
point = self.tree.mapToGlobal(point)
context_menu.popup(point)
def add_expression(self, expression):
item = QTreeWidgetItem([expression, '', ''])
item.setFlags(
Qt.ItemIsEnabled |
Qt.ItemIsEditable |
Qt.ItemIsSelectable
)
self.tree.addTopLevelItem(item)
# Emit the signal to evaluate the expression
index = self.tree.indexOfTopLevelItem(item)
self.expression_added_signal.emit(index, expression)
def delete_selected(self):
"""Deletes currently selected items from the tree"""
for item in self.tree.selectedItems():
index = self.tree.indexOfTopLevelItem(item)
self.delete_expression(item)
self.select_next(index)
def select_next(self, index):
"""Selects the next item after an item has been deleted"""
prev_item = self.tree.topLevelItem(index - 1)
next_item = self.tree.topLevelItem(index)
if prev_item:
prev_item.setSelected(True)
elif next_item:
next_item.setSelected(True)
def clear_values(self):
"""Deletes values for all expressions"""
count = self.tree.topLevelItemCount()
for index in range(0, count):
item = self.tree.topLevelItem(index)
item.setData(1, Qt.DisplayRole, '')
item.setData(2, Qt.DisplayRole, '')
item.takeChildren()
def delete_expression(self, item):
"""Deletes the given item from the tree"""
index = self.tree.indexOfTopLevelItem(item)
self.tree.takeTopLevelItem(index)
def get_expressions(self):
#.........这里部分代码省略.........