Return 来自 QTreeview 选择 Pyside 的热门项目
Return top items from QTreeview selection Pyside
我有一个 QTreeview,根据用户的选择,我想得到一个唯一的数组,其中包含所选项目的父项的所有名称。
因此,如果选择了任何子项,它将 return 父项,如果选择了父项,它仍将 return 父项。
想要 return编辑:
>> [Kevin, Michelle, Nikki, Tim]
from PySide import QtGui, QtCore
from PySide import QtSvg, QtXml
import sys
class Person:
def __init__(self, name="", children=None):
self.name = name
self.children = children if children else []
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.resize(300, 400)
self.init_ui()
def init_ui(self):
# Setup Tabs Widget
# self.treeview = QtGui.QTreeView()
self.treeview = QtGui.QTreeView()
self.treeview.setHeaderHidden(True)
self.treeview.setUniformRowHeights(True)
self.treeview.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.treeview.setSelectionMode(QtGui.QAbstractItemView.ExtendedSelection)
self.model = QtGui.QStandardItemModel()
self.treeview.setModel(self.model)
self.action = QtGui.QAction('Print', self)
self.action.setShortcut('F5')
self.action.triggered.connect(self.get_checked)
fileMenu = QtGui.QMenu("&File", self)
fileMenu.addAction(self.action)
self.menuBar().addMenu(fileMenu)
# Setup central widget
self.setCentralWidget(self.treeview)
# populate data
self.populate_people()
self.treeview.expandAll()
def populate_people(self):
parents = [
Person("Kevin", [Person("Tom"), Person("Sarah"), Person("Chester")]),
Person("Michelle", [Person("James"), Person("Corey"),Person("Leslie")]),
Person("Doug", [Person("Fred"), Person("Harold"),Person("Stephen")]),
Person("Nikki", [Person("Brody"), Person("Tyson"),Person("Bella")]),
Person("Tim", [Person("Marie"), Person("Val"),Person("Ted")])
]
for p in parents:
self.create_nodes(p, self.model)
def create_nodes(self, node, parent):
tnode = QtGui.QStandardItem()
tnode.setCheckable(True)
tnode.setData(QtCore.Qt.Unchecked, role=QtCore.Qt.CheckStateRole)
tnode.setData(node.name , role=QtCore.Qt.DisplayRole)
tnode.setData(node, role=QtCore.Qt.UserRole) # store object on item
parent.appendRow(tnode)
for x in node.children:
self.create_nodes(x, tnode)
def get_checked(self):
print "collecting parents..."
def main():
app = QtGui.QApplication(sys.argv)
ex = MainWindow()
ex.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
这是一个简单的实现:
def selectedParents(self):
parents = set()
for index in self.treeview.selectedIndexes():
while index.parent().isValid():
index = index.parent()
parents.add(index.sibling(index.row(), 0))
return [index.data() for index in sorted(parents)]
注意selectedIndexes()
returns索引是按照它们被选择的顺序排列的,如果有多个列,将包括所选行中每一列的索引。
因此上述方法确保仅包含第一列中的文本,并确保以正确的顺序返回项目。
我有一个 QTreeview,根据用户的选择,我想得到一个唯一的数组,其中包含所选项目的父项的所有名称。
因此,如果选择了任何子项,它将 return 父项,如果选择了父项,它仍将 return 父项。
想要 return编辑:
>> [Kevin, Michelle, Nikki, Tim]
from PySide import QtGui, QtCore
from PySide import QtSvg, QtXml
import sys
class Person:
def __init__(self, name="", children=None):
self.name = name
self.children = children if children else []
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.resize(300, 400)
self.init_ui()
def init_ui(self):
# Setup Tabs Widget
# self.treeview = QtGui.QTreeView()
self.treeview = QtGui.QTreeView()
self.treeview.setHeaderHidden(True)
self.treeview.setUniformRowHeights(True)
self.treeview.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.treeview.setSelectionMode(QtGui.QAbstractItemView.ExtendedSelection)
self.model = QtGui.QStandardItemModel()
self.treeview.setModel(self.model)
self.action = QtGui.QAction('Print', self)
self.action.setShortcut('F5')
self.action.triggered.connect(self.get_checked)
fileMenu = QtGui.QMenu("&File", self)
fileMenu.addAction(self.action)
self.menuBar().addMenu(fileMenu)
# Setup central widget
self.setCentralWidget(self.treeview)
# populate data
self.populate_people()
self.treeview.expandAll()
def populate_people(self):
parents = [
Person("Kevin", [Person("Tom"), Person("Sarah"), Person("Chester")]),
Person("Michelle", [Person("James"), Person("Corey"),Person("Leslie")]),
Person("Doug", [Person("Fred"), Person("Harold"),Person("Stephen")]),
Person("Nikki", [Person("Brody"), Person("Tyson"),Person("Bella")]),
Person("Tim", [Person("Marie"), Person("Val"),Person("Ted")])
]
for p in parents:
self.create_nodes(p, self.model)
def create_nodes(self, node, parent):
tnode = QtGui.QStandardItem()
tnode.setCheckable(True)
tnode.setData(QtCore.Qt.Unchecked, role=QtCore.Qt.CheckStateRole)
tnode.setData(node.name , role=QtCore.Qt.DisplayRole)
tnode.setData(node, role=QtCore.Qt.UserRole) # store object on item
parent.appendRow(tnode)
for x in node.children:
self.create_nodes(x, tnode)
def get_checked(self):
print "collecting parents..."
def main():
app = QtGui.QApplication(sys.argv)
ex = MainWindow()
ex.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
这是一个简单的实现:
def selectedParents(self):
parents = set()
for index in self.treeview.selectedIndexes():
while index.parent().isValid():
index = index.parent()
parents.add(index.sibling(index.row(), 0))
return [index.data() for index in sorted(parents)]
注意selectedIndexes()
returns索引是按照它们被选择的顺序排列的,如果有多个列,将包括所选行中每一列的索引。
因此上述方法确保仅包含第一列中的文本,并确保以正确的顺序返回项目。