在 QTreeView 列中查找第一次出现的文本
Find first occurrence of a text inside a QTreeView-column
在我的主要 window 中，我有一个 table 的 class QTreeView。第二列包含邮件主题。通过点击一个按钮，我想搜索一个特定的字符，比方说 "Y"。现在我希望 table 跳转到第一个找到的以字母 "Y".
开头的主题
请参阅以下示例。
当您选择第二列 ("subject") 中的任何单元格并开始键入 "y" 时，这将起作用 -> table 突出显示第一个匹配项。 -> 请参阅带下划线的项目 "Your Phone Bill"。当它看不见时，它甚至会滚动到那个单元格。
我正是想要这个 - 但在按钮上实现，参见 "Search Subj 'Y'"，信号 "on_pbSearch_Y_clicked()"。
完整功能代码（到目前为止）：
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class App(QWidget):
MAIL_RANGE = 4
ID, FROM, SUBJECT, DATE = range(MAIL_RANGE)
def __init__(self):
super().__init__()
self.left = 10
self.top = 10
self.width = 640
self.height = 240
self.initUI()
self.dataView.setSelectionMode(QAbstractItemView.ExtendedSelection) # <- enable selection of rows in tree
self.dataView.setEditTriggers(QAbstractItemView.NoEditTriggers) # <- disable editing items in tree
for i in range(0, 2):
self.dataView.resizeColumnToContents(i)
self.pbSearch_Y = QPushButton(self)
self.pbSearch_Y.setText("Search Subj 'Y'")
self.pbSearch_Y.move(500,0)
self.pbSearch_Y.show()
# connect handlers
self.pbSearch_Y.clicked.connect(self.on_pbSearch_Y_clicked)
def on_pbSearch_Y_clicked(self):
pass
def initUI(self):
self.setGeometry(self.left, self.top, self.width, self.height)
self.dataGroupBox = QGroupBox("Inbox")
self.dataView = QTreeView()
self.dataView.setRootIsDecorated(False)
self.dataView.setAlternatingRowColors(True)
dataLayout = QHBoxLayout()
dataLayout.addWidget(self.dataView)
self.dataGroupBox.setLayout(dataLayout)
model = self.createMailModel(self)
self.dataView.setModel(model)
self.addMail(model, 1, 'service@github.com', 'Your Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 2, 'support@github.com', 'Github Projects','02/02/2017 03:05 PM')
self.addMail(model, 3, 'service@phone.com', 'Your Phone Bill','01/01/2017 04:05 PM')
self.addMail(model, 4, 'service@abc.com', 'aaaYour Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 5, 'support@def.com', 'bbbGithub Projects','02/02/2017 03:05 PM')
self.addMail(model, 6, 'service@xyz.com', 'cccYour Phone Bill','01/01/2017 04:05 PM')
self.dataView.setColumnHidden(0, True)
mainLayout = QVBoxLayout()
mainLayout.addWidget(self.dataGroupBox)
self.setLayout(mainLayout)
self.show()
def createMailModel(self,parent):
model = QStandardItemModel(0, self.MAIL_RANGE, parent)
model.setHeaderData(self.ID, Qt.Horizontal, "ID")
model.setHeaderData(self.FROM, Qt.Horizontal, "From")
model.setHeaderData(self.SUBJECT, Qt.Horizontal, "Subject")
model.setHeaderData(self.DATE, Qt.Horizontal, "Date")
return model
def addMail(self, model, mailID, mailFrom, subject, date):
model.insertRow(0)
model.setData(model.index(0, self.ID), mailID)
model.setData(model.index(0, self.FROM), mailFrom)
model.setData(model.index(0, self.SUBJECT), subject)
model.setData(model.index(0, self.DATE), date)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
我怎样才能做到这一点？
老实说，我不将 GUI 与 python 一起使用，但您可以通过使用 PyQT
将我的任意函数替换为所需的函数来实现这一点
mostWantedChar = 'Y'
foundElements = []
for element in dataView.listElements():
if element[0] == mostWantedChar:
foundElements.Append(element + '@' + element.Line()) #In case you would need to get the line and the line's content for further purposes (just make a split('@') )
element.Line().Higlight()
waitClickFromPushButton()
return foundElements
您必须执行以下操作：
- 使用视图的
match()方法找到给定文本的QModelIndex。
- 使用视图的
scrollTo()方法滚动到QModelIndex
- 使用
select() method of the view's selectionModel()到select行。
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class App(QtWidgets.QWidget):
MAIL_RANGE = 4
ID, FROM, SUBJECT, DATE = range(MAIL_RANGE)
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setGeometry(10, 10, 640, 240)
self.dataGroupBox = QtWidgets.QGroupBox("Inbox")
self.dataView = QtWidgets.QTreeView(
rootIsDecorated=False,
alternatingRowColors=True,
selectionMode=QtWidgets.QAbstractItemView.ExtendedSelection,
editTriggers=QtWidgets.QAbstractItemView.NoEditTriggers,
selectionBehavior=QtWidgets.QAbstractItemView.SelectRows,
)
dataLayout = QtWidgets.QHBoxLayout()
dataLayout.addWidget(self.dataView)
self.dataGroupBox.setLayout(dataLayout)
model = App.createMailModel(self)
self.dataView.setModel(model)
for i in range(0, 2):
self.dataView.resizeColumnToContents(i)
self.addMail(model, 1, 'service@github.com', 'Your Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 2, 'support@github.com', 'Github Projects','02/02/2017 03:05 PM')
self.addMail(model, 3, 'service@phone.com', 'Your Phone Bill','01/01/2017 04:05 PM')
self.addMail(model, 4, 'service@abc.com', 'aaaYour Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 5, 'support@def.com', 'bbbGithub Projects','02/02/2017 03:05 PM')
self.addMail(model, 6, 'service@xyz.com', 'cccYour Phone Bill','01/01/2017 04:05 PM')
self.dataView.setColumnHidden(0, True)
self.leSearch = QtWidgets.QLineEdit()
self.pbSearch = QtWidgets.QPushButton(
"Search", clicked=self.on_pbSearch_clicked
)
hlay = QtWidgets.QHBoxLayout()
hlay.addWidget(self.leSearch)
hlay.addWidget(self.pbSearch)
mainLayout = QtWidgets.QVBoxLayout(self)
mainLayout.addLayout(hlay)
mainLayout.addWidget(self.dataGroupBox)
@staticmethod
def createMailModel(parent):
model = QtGui.QStandardItemModel(0, App.MAIL_RANGE, parent)
for c, text in zip(
(App.ID, App.FROM, App.SUBJECT, App.DATE),
("ID", "From", "Subject", "Date"),
):
model.setHeaderData(c, QtCore.Qt.Horizontal, text)
return model
def addMail(self, model, mailID, mailFrom, subject, date):
model.insertRow(0)
for c, text in zip(
(App.ID, App.FROM, App.SUBJECT, App.DATE),
(mailID, mailFrom, subject, date),
):
model.setData(model.index(0, c), text)
@QtCore.pyqtSlot()
def on_pbSearch_clicked(self):
text = self.leSearch.text()
self.leSearch.clear()
if text:
# find index
start = self.dataView.model().index(0, 2)
ixs = self.dataView.model().match(
start,
QtCore.Qt.DisplayRole,
text,
hits=1,
flags=QtCore.Qt.MatchStartsWith,
)
if ixs:
ix = ixs[0]
# scroll to index
self.dataView.scrollTo(ix)
# select row
ix_from = ix.sibling(ix.row(), 0)
ix_to = ix.sibling(
ix.row(), self.dataView.model().columnCount() - 1
)
self.dataView.selectionModel().select(
QtCore.QItemSelection(ix_from, ix_to),
QtCore.QItemSelectionModel.SelectCurrent,
)
else:
self.dataView.clearSelection()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
ex = App()
ex.show()
sys.exit(app.exec_())
在我的主要 window 中，我有一个 table 的 class QTreeView。第二列包含邮件主题。通过点击一个按钮，我想搜索一个特定的字符，比方说 "Y"。现在我希望 table 跳转到第一个找到的以字母 "Y".
开头的主题请参阅以下示例。
当您选择第二列 ("subject") 中的任何单元格并开始键入 "y" 时，这将起作用 -> table 突出显示第一个匹配项。 -> 请参阅带下划线的项目 "Your Phone Bill"。当它看不见时，它甚至会滚动到那个单元格。
我正是想要这个 - 但在按钮上实现，参见 "Search Subj 'Y'"，信号 "on_pbSearch_Y_clicked()"。
完整功能代码（到目前为止）：
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class App(QWidget):
MAIL_RANGE = 4
ID, FROM, SUBJECT, DATE = range(MAIL_RANGE)
def __init__(self):
super().__init__()
self.left = 10
self.top = 10
self.width = 640
self.height = 240
self.initUI()
self.dataView.setSelectionMode(QAbstractItemView.ExtendedSelection) # <- enable selection of rows in tree
self.dataView.setEditTriggers(QAbstractItemView.NoEditTriggers) # <- disable editing items in tree
for i in range(0, 2):
self.dataView.resizeColumnToContents(i)
self.pbSearch_Y = QPushButton(self)
self.pbSearch_Y.setText("Search Subj 'Y'")
self.pbSearch_Y.move(500,0)
self.pbSearch_Y.show()
# connect handlers
self.pbSearch_Y.clicked.connect(self.on_pbSearch_Y_clicked)
def on_pbSearch_Y_clicked(self):
pass
def initUI(self):
self.setGeometry(self.left, self.top, self.width, self.height)
self.dataGroupBox = QGroupBox("Inbox")
self.dataView = QTreeView()
self.dataView.setRootIsDecorated(False)
self.dataView.setAlternatingRowColors(True)
dataLayout = QHBoxLayout()
dataLayout.addWidget(self.dataView)
self.dataGroupBox.setLayout(dataLayout)
model = self.createMailModel(self)
self.dataView.setModel(model)
self.addMail(model, 1, 'service@github.com', 'Your Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 2, 'support@github.com', 'Github Projects','02/02/2017 03:05 PM')
self.addMail(model, 3, 'service@phone.com', 'Your Phone Bill','01/01/2017 04:05 PM')
self.addMail(model, 4, 'service@abc.com', 'aaaYour Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 5, 'support@def.com', 'bbbGithub Projects','02/02/2017 03:05 PM')
self.addMail(model, 6, 'service@xyz.com', 'cccYour Phone Bill','01/01/2017 04:05 PM')
self.dataView.setColumnHidden(0, True)
mainLayout = QVBoxLayout()
mainLayout.addWidget(self.dataGroupBox)
self.setLayout(mainLayout)
self.show()
def createMailModel(self,parent):
model = QStandardItemModel(0, self.MAIL_RANGE, parent)
model.setHeaderData(self.ID, Qt.Horizontal, "ID")
model.setHeaderData(self.FROM, Qt.Horizontal, "From")
model.setHeaderData(self.SUBJECT, Qt.Horizontal, "Subject")
model.setHeaderData(self.DATE, Qt.Horizontal, "Date")
return model
def addMail(self, model, mailID, mailFrom, subject, date):
model.insertRow(0)
model.setData(model.index(0, self.ID), mailID)
model.setData(model.index(0, self.FROM), mailFrom)
model.setData(model.index(0, self.SUBJECT), subject)
model.setData(model.index(0, self.DATE), date)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
我怎样才能做到这一点？
老实说，我不将 GUI 与 python 一起使用，但您可以通过使用 PyQT
将我的任意函数替换为所需的函数来实现这一点mostWantedChar = 'Y'
foundElements = []
for element in dataView.listElements():
if element[0] == mostWantedChar:
foundElements.Append(element + '@' + element.Line()) #In case you would need to get the line and the line's content for further purposes (just make a split('@') )
element.Line().Higlight()
waitClickFromPushButton()
return foundElements
您必须执行以下操作：
- 使用视图的
match()方法找到给定文本的QModelIndex。 - 使用视图的
scrollTo()方法滚动到QModelIndex - 使用
select()method of the view'sselectionModel()到select行。
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class App(QtWidgets.QWidget):
MAIL_RANGE = 4
ID, FROM, SUBJECT, DATE = range(MAIL_RANGE)
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setGeometry(10, 10, 640, 240)
self.dataGroupBox = QtWidgets.QGroupBox("Inbox")
self.dataView = QtWidgets.QTreeView(
rootIsDecorated=False,
alternatingRowColors=True,
selectionMode=QtWidgets.QAbstractItemView.ExtendedSelection,
editTriggers=QtWidgets.QAbstractItemView.NoEditTriggers,
selectionBehavior=QtWidgets.QAbstractItemView.SelectRows,
)
dataLayout = QtWidgets.QHBoxLayout()
dataLayout.addWidget(self.dataView)
self.dataGroupBox.setLayout(dataLayout)
model = App.createMailModel(self)
self.dataView.setModel(model)
for i in range(0, 2):
self.dataView.resizeColumnToContents(i)
self.addMail(model, 1, 'service@github.com', 'Your Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 2, 'support@github.com', 'Github Projects','02/02/2017 03:05 PM')
self.addMail(model, 3, 'service@phone.com', 'Your Phone Bill','01/01/2017 04:05 PM')
self.addMail(model, 4, 'service@abc.com', 'aaaYour Github Donation','03/25/2017 02:05 PM')
self.addMail(model, 5, 'support@def.com', 'bbbGithub Projects','02/02/2017 03:05 PM')
self.addMail(model, 6, 'service@xyz.com', 'cccYour Phone Bill','01/01/2017 04:05 PM')
self.dataView.setColumnHidden(0, True)
self.leSearch = QtWidgets.QLineEdit()
self.pbSearch = QtWidgets.QPushButton(
"Search", clicked=self.on_pbSearch_clicked
)
hlay = QtWidgets.QHBoxLayout()
hlay.addWidget(self.leSearch)
hlay.addWidget(self.pbSearch)
mainLayout = QtWidgets.QVBoxLayout(self)
mainLayout.addLayout(hlay)
mainLayout.addWidget(self.dataGroupBox)
@staticmethod
def createMailModel(parent):
model = QtGui.QStandardItemModel(0, App.MAIL_RANGE, parent)
for c, text in zip(
(App.ID, App.FROM, App.SUBJECT, App.DATE),
("ID", "From", "Subject", "Date"),
):
model.setHeaderData(c, QtCore.Qt.Horizontal, text)
return model
def addMail(self, model, mailID, mailFrom, subject, date):
model.insertRow(0)
for c, text in zip(
(App.ID, App.FROM, App.SUBJECT, App.DATE),
(mailID, mailFrom, subject, date),
):
model.setData(model.index(0, c), text)
@QtCore.pyqtSlot()
def on_pbSearch_clicked(self):
text = self.leSearch.text()
self.leSearch.clear()
if text:
# find index
start = self.dataView.model().index(0, 2)
ixs = self.dataView.model().match(
start,
QtCore.Qt.DisplayRole,
text,
hits=1,
flags=QtCore.Qt.MatchStartsWith,
)
if ixs:
ix = ixs[0]
# scroll to index
self.dataView.scrollTo(ix)
# select row
ix_from = ix.sibling(ix.row(), 0)
ix_to = ix.sibling(
ix.row(), self.dataView.model().columnCount() - 1
)
self.dataView.selectionModel().select(
QtCore.QItemSelection(ix_from, ix_to),
QtCore.QItemSelectionModel.SelectCurrent,
)
else:
self.dataView.clearSelection()
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
ex = App()
ex.show()
sys.exit(app.exec_())