如何为 QTableView 列设置 header 标签？
How can you set header labels for QTableView columns?
我正在使用 PyQt5 开发一个 Python GUI 应用程序，它有一个用于显示数据的 QTableView。
代码如下：
import sys
from PyQt5 import QtWidgets, QtCore
from PyQt5.QtCore import Qt
class DataModel(QtCore.QAbstractTableModel):
def __init__(self):
super().__init__()
self.data = []
def data(self, index, role):
if role == Qt.DisplayRole:
return self.data[index.row()][index.column()]
def rowCount(self, index):
return len(self.data)
def columnCount(self, index):
return len(self.data[0])
class MainWindow(UI.UserInterface):
def __init__(self):
super().__init__()
self.model = DataModel()
self.load()
self.TableView.setModel(self.model)
self.TableView.resizeColumnsToContents()
self.TableView.horizontalHeader().setStretchLastSection(True)
def load(self):
try:
self.model.data = [(1, '2020-01-10 00:00:00', 'KANIA', 'HENRYK', 4219)]
except Exception:
pass
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec_()
class UI.UserInterface 在单独的模块中。它有界面QWidgets和布局QWidgets。其中之一是 QTableView.
我似乎找不到为 QTableView.
设置 header 标签的方法
我寻找了不同的解决方案（其中一些在下面），但 none 有效：
https://doc.qt.io/qt-5/sql-presenting.html（这个是C++写的，不太懂）
您必须实施 headerData():
class DataModel(QtCore.QAbstractTableModel):
# ...
def headerData(self, section, orientation, role=QtCore.Qt.DisplayRole):
if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
return 'Column {}'.format(section + 1)
return super().headerData(section, orientation, role)
显然，您甚至可以使用包含要显示的标签的简单列表来设置自己的标签。
请注意，在为子类命名新属性时应该非常小心，因为它们可能已经存在。
最重要的是，您应该 而不是 覆盖 self.data.
这是一个使用 QtableView 和一组 headerdata 的示例，您将能够修改 tableview 中的数据
def exemple_table(self):
database = QSqlDatabase("QPSQL")
database.setHostName("localhost")
database.setDatabaseName("database")
database.setUserName("postgres")
database.setPassword("password")
database.open()
model_ft = QSqlTableModel(db=database)
model_ft.setTable('table')
model_ft.setHeaderData(0, Qt.Horizontal,"id")
model_ft.setHeaderData(1, Qt.Horizontal,"exemple01")
model_ft.setHeaderData(2, Qt.Horizontal,"exemple02")
model_ft.setHeaderData(3, Qt.Horizontal,"exemple03")
model_ft.setHeaderData(4, Qt.Horizontal,"exemple04")
model_ft.setHeaderData(5, Qt.Horizontal,"exemple05")
model_ft.setHeaderData(6, Qt.Horizontal,"exemple06")
model_ft.setHeaderData(7, Qt.Horizontal,"exemple07")
model_ft.removeColumns(8,1)
date = str(datetime.date.today())
self.tableView.setModel(model_ft)
self.tableView.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
model_ft.setSort(0, Qt.DescendingOrder)
model_ft.select()
filter_ft = "date_d ='%s' " % (date_1)
model_ft.setFilter(filter_ft)
ps 我使用的是 postgresql 你可以在这里找到其他驱动程序 https://doc.qt.io/qt-5/sql-driver.html
以及您可以使用所有 SQL 功能的过滤器
覆盖 QTableAbstractModel 的 headerData 方法以设置 Columns 和 Rows name
def headerData(self, section: int, orientation: PySide6.QtCore.Qt.Orientation, role: int = ...):
#for setting columns name
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
return f"Column {section + 1}"
#for setting rows name
if orientation == Qt.Vertical and role == Qt.DisplayRole:
return f"Row {section + 1}"
工作代码：
import sys
import requests
import PySide6
from PySide6.QtWidgets import QTableView, QWidget, QApplication, QGridLayout, QHeaderView
from PySide6.QtCore import Qt, QAbstractTableModel
from PySide6.QtGui import QColor, QIcon, QPixmap
from datetime import datetime
class MagicIcon():
def __init__(self, link):
self.link = link
self.icon = QIcon()
try:
response = requests.get(self.link)
pixmap = QPixmap()
pixmap.loadFromData(response.content)
self.icon = QIcon(pixmap)
except:
pass
class TableModel(QAbstractTableModel):
def headerData(self, section: int, orientation: PySide6.QtCore.Qt.Orientation, role: int = ...):
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
# return f"Column {section + 1}"
return self.columns[section]
if orientation == Qt.Vertical and role == Qt.DisplayRole:
return f"{section + 1}"
def __init__(self, _data):
self.columns = ["Account", "Investment", "KYC", "Investment Date"]
# super().__init__(self)
super(TableModel, self).__init__()
self._data = _data
self.calendarLink = "https://img.icons8.com/fluency/48/000000/windows-calendar.png"
self.dollarLink = "https://img.icons8.com/external-vitaliy-gorbachev-lineal-color-vitaly-gorbachev/40/000000/external-dollar-currency-vitaliy-gorbachev-lineal-color-vitaly-gorbachev-1.png"
self.analysis = "https://img.icons8.com/external-flatarticons-blue-flatarticons/65/000000/external-analysis-digital-marketing-flatarticons-blue-flatarticons-1.png"
self.bug = "https://img.icons8.com/offices/30/000000/bug.png"
self.account = "https://img.icons8.com/plumpy/24/000000/edit-administrator.png"
self.approvedLink = "https://img.icons8.com/external-bearicons-flat-bearicons/40/000000/external-approved-approved-and-rejected-bearicons-flat-bearicons-9.png"
self.rejectedLink = "https://img.icons8.com/external-bearicons-flat-bearicons/40/000000/external-rejected-approved-and-rejected-bearicons-flat-bearicons-11.png"
self.naLink = "https://img.icons8.com/color/48/000000/not-applicable.png"
self.calendarIcon = MagicIcon(self.calendarLink).icon
self.accountIcon = MagicIcon(self.account).icon
self.dollarIcon = MagicIcon(self.dollarLink).icon
self.approvedIcon = MagicIcon(self.approvedLink).icon
self.rejectedIcon = MagicIcon(self.rejectedLink).icon
self.naIcon = MagicIcon(self.naLink).icon
def data(self, index, role):
if role == Qt.DisplayRole:
value = self._data[index.row()][index.column()]
if isinstance(value, datetime):
return value.strftime("%Y-%m-%d")
if isinstance(value, float):
return f"{value:.2f}"
return value
if role == Qt.TextAlignmentRole:
return Qt.AlignHCenter + Qt.AlignVCenter
if role == Qt.BackgroundRole:
return QColor("#adcdff") if index.row() % 2 == 0 else QColor("#d8ffc2")
if role == Qt.DecorationRole:
value = self._data[index.row()][index.column()]
if value is None:
return self.naIcon
if isinstance(value, datetime):
return self.calendarIcon
if index.column() == 0:
return self.accountIcon
if index.column() == 1:
return self.dollarIcon
if index.column() == 2:
if value == True:
return self.approvedIcon
elif value == False:
return self.rejectedIcon
return self.naIcon
def rowCount(self, index):
return len(self._data)
def columnCount(self, index):
return len(self._data[0])
class MainWindow(QWidget):
def __init__(self):
# super().__init__()
super(MainWindow, self).__init__()
self.resizeEvent = self.onResize
self.table = QTableView()
self.setWindowIcon(MagicIcon(
"https://img.icons8.com/external-flatarticons-blue-flatarticons/65/000000/external-analysis-digital-marketing-flatarticons-blue-flatarticons-1.png"
).icon)
self.table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
# self.table.setSizeAdjustPolicy(QHeaderView.AdjustIgnored)
# self.table.verticalHeader().setSectionResizeMode(QHeaderView.Stretch)
data = [
["Andrew Mike", 15.255, True, datetime(2022, 1, 5)],
["Eliza Petterson", 353.555, False, datetime(2020, 1, 5)],
["Joseph Samuel", 123, None, datetime(2020, 1, 15)],
["Nita Singh", 266, True, datetime(2022, 2, 7)],
["Rahul Chakrabarti", 102, True, datetime(2019, 10, 15)],
]
self.model = TableModel(data)
self.table.setModel(self.model)
self.header = self.table.horizontalHeader()
# self.header.setSectionResizeMode(0, QHeaderView.Stretch)
# self.header.setSectionResizeMode(1, QHeaderView.)
# self.header.setSectionResizeMode(2, QHeaderView.ResizeToContents)
self.layout = QGridLayout()
self.layout.addWidget(self.table, 0, 0)
self.setLayout(self.layout)
def onResize(self, event):
# print('old', event.oldSize(), 'new', event.size())
# super(MainWindow, self).resizeEvent(event)
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
wid = MainWindow()
wid.show()
sys.exit(app.exec())
我正在使用 PyQt5 开发一个 Python GUI 应用程序，它有一个用于显示数据的 QTableView。
代码如下：
import sys
from PyQt5 import QtWidgets, QtCore
from PyQt5.QtCore import Qt
class DataModel(QtCore.QAbstractTableModel):
def __init__(self):
super().__init__()
self.data = []
def data(self, index, role):
if role == Qt.DisplayRole:
return self.data[index.row()][index.column()]
def rowCount(self, index):
return len(self.data)
def columnCount(self, index):
return len(self.data[0])
class MainWindow(UI.UserInterface):
def __init__(self):
super().__init__()
self.model = DataModel()
self.load()
self.TableView.setModel(self.model)
self.TableView.resizeColumnsToContents()
self.TableView.horizontalHeader().setStretchLastSection(True)
def load(self):
try:
self.model.data = [(1, '2020-01-10 00:00:00', 'KANIA', 'HENRYK', 4219)]
except Exception:
pass
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
window = MainWindow()
window.show()
app.exec_()
class UI.UserInterface 在单独的模块中。它有界面QWidgets和布局QWidgets。其中之一是 QTableView.
我似乎找不到为 QTableView.
我寻找了不同的解决方案（其中一些在下面），但 none 有效：
https://doc.qt.io/qt-5/sql-presenting.html（这个是C++写的，不太懂）
您必须实施 headerData():
class DataModel(QtCore.QAbstractTableModel):
# ...
def headerData(self, section, orientation, role=QtCore.Qt.DisplayRole):
if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
return 'Column {}'.format(section + 1)
return super().headerData(section, orientation, role)
显然，您甚至可以使用包含要显示的标签的简单列表来设置自己的标签。
请注意，在为子类命名新属性时应该非常小心，因为它们可能已经存在。
最重要的是，您应该 而不是 覆盖 self.data.
这是一个使用 QtableView 和一组 headerdata 的示例，您将能够修改 tableview 中的数据
def exemple_table(self):
database = QSqlDatabase("QPSQL")
database.setHostName("localhost")
database.setDatabaseName("database")
database.setUserName("postgres")
database.setPassword("password")
database.open()
model_ft = QSqlTableModel(db=database)
model_ft.setTable('table')
model_ft.setHeaderData(0, Qt.Horizontal,"id")
model_ft.setHeaderData(1, Qt.Horizontal,"exemple01")
model_ft.setHeaderData(2, Qt.Horizontal,"exemple02")
model_ft.setHeaderData(3, Qt.Horizontal,"exemple03")
model_ft.setHeaderData(4, Qt.Horizontal,"exemple04")
model_ft.setHeaderData(5, Qt.Horizontal,"exemple05")
model_ft.setHeaderData(6, Qt.Horizontal,"exemple06")
model_ft.setHeaderData(7, Qt.Horizontal,"exemple07")
model_ft.removeColumns(8,1)
date = str(datetime.date.today())
self.tableView.setModel(model_ft)
self.tableView.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
model_ft.setSort(0, Qt.DescendingOrder)
model_ft.select()
filter_ft = "date_d ='%s' " % (date_1)
model_ft.setFilter(filter_ft)
ps 我使用的是 postgresql 你可以在这里找到其他驱动程序 https://doc.qt.io/qt-5/sql-driver.html
以及您可以使用所有 SQL 功能的过滤器
覆盖 QTableAbstractModel 的 headerData 方法以设置 Columns 和 Rows name
def headerData(self, section: int, orientation: PySide6.QtCore.Qt.Orientation, role: int = ...):
#for setting columns name
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
return f"Column {section + 1}"
#for setting rows name
if orientation == Qt.Vertical and role == Qt.DisplayRole:
return f"Row {section + 1}"
工作代码：
import sys
import requests
import PySide6
from PySide6.QtWidgets import QTableView, QWidget, QApplication, QGridLayout, QHeaderView
from PySide6.QtCore import Qt, QAbstractTableModel
from PySide6.QtGui import QColor, QIcon, QPixmap
from datetime import datetime
class MagicIcon():
def __init__(self, link):
self.link = link
self.icon = QIcon()
try:
response = requests.get(self.link)
pixmap = QPixmap()
pixmap.loadFromData(response.content)
self.icon = QIcon(pixmap)
except:
pass
class TableModel(QAbstractTableModel):
def headerData(self, section: int, orientation: PySide6.QtCore.Qt.Orientation, role: int = ...):
if orientation == Qt.Horizontal and role == Qt.DisplayRole:
# return f"Column {section + 1}"
return self.columns[section]
if orientation == Qt.Vertical and role == Qt.DisplayRole:
return f"{section + 1}"
def __init__(self, _data):
self.columns = ["Account", "Investment", "KYC", "Investment Date"]
# super().__init__(self)
super(TableModel, self).__init__()
self._data = _data
self.calendarLink = "https://img.icons8.com/fluency/48/000000/windows-calendar.png"
self.dollarLink = "https://img.icons8.com/external-vitaliy-gorbachev-lineal-color-vitaly-gorbachev/40/000000/external-dollar-currency-vitaliy-gorbachev-lineal-color-vitaly-gorbachev-1.png"
self.analysis = "https://img.icons8.com/external-flatarticons-blue-flatarticons/65/000000/external-analysis-digital-marketing-flatarticons-blue-flatarticons-1.png"
self.bug = "https://img.icons8.com/offices/30/000000/bug.png"
self.account = "https://img.icons8.com/plumpy/24/000000/edit-administrator.png"
self.approvedLink = "https://img.icons8.com/external-bearicons-flat-bearicons/40/000000/external-approved-approved-and-rejected-bearicons-flat-bearicons-9.png"
self.rejectedLink = "https://img.icons8.com/external-bearicons-flat-bearicons/40/000000/external-rejected-approved-and-rejected-bearicons-flat-bearicons-11.png"
self.naLink = "https://img.icons8.com/color/48/000000/not-applicable.png"
self.calendarIcon = MagicIcon(self.calendarLink).icon
self.accountIcon = MagicIcon(self.account).icon
self.dollarIcon = MagicIcon(self.dollarLink).icon
self.approvedIcon = MagicIcon(self.approvedLink).icon
self.rejectedIcon = MagicIcon(self.rejectedLink).icon
self.naIcon = MagicIcon(self.naLink).icon
def data(self, index, role):
if role == Qt.DisplayRole:
value = self._data[index.row()][index.column()]
if isinstance(value, datetime):
return value.strftime("%Y-%m-%d")
if isinstance(value, float):
return f"{value:.2f}"
return value
if role == Qt.TextAlignmentRole:
return Qt.AlignHCenter + Qt.AlignVCenter
if role == Qt.BackgroundRole:
return QColor("#adcdff") if index.row() % 2 == 0 else QColor("#d8ffc2")
if role == Qt.DecorationRole:
value = self._data[index.row()][index.column()]
if value is None:
return self.naIcon
if isinstance(value, datetime):
return self.calendarIcon
if index.column() == 0:
return self.accountIcon
if index.column() == 1:
return self.dollarIcon
if index.column() == 2:
if value == True:
return self.approvedIcon
elif value == False:
return self.rejectedIcon
return self.naIcon
def rowCount(self, index):
return len(self._data)
def columnCount(self, index):
return len(self._data[0])
class MainWindow(QWidget):
def __init__(self):
# super().__init__()
super(MainWindow, self).__init__()
self.resizeEvent = self.onResize
self.table = QTableView()
self.setWindowIcon(MagicIcon(
"https://img.icons8.com/external-flatarticons-blue-flatarticons/65/000000/external-analysis-digital-marketing-flatarticons-blue-flatarticons-1.png"
).icon)
self.table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
# self.table.setSizeAdjustPolicy(QHeaderView.AdjustIgnored)
# self.table.verticalHeader().setSectionResizeMode(QHeaderView.Stretch)
data = [
["Andrew Mike", 15.255, True, datetime(2022, 1, 5)],
["Eliza Petterson", 353.555, False, datetime(2020, 1, 5)],
["Joseph Samuel", 123, None, datetime(2020, 1, 15)],
["Nita Singh", 266, True, datetime(2022, 2, 7)],
["Rahul Chakrabarti", 102, True, datetime(2019, 10, 15)],
]
self.model = TableModel(data)
self.table.setModel(self.model)
self.header = self.table.horizontalHeader()
# self.header.setSectionResizeMode(0, QHeaderView.Stretch)
# self.header.setSectionResizeMode(1, QHeaderView.)
# self.header.setSectionResizeMode(2, QHeaderView.ResizeToContents)
self.layout = QGridLayout()
self.layout.addWidget(self.table, 0, 0)
self.setLayout(self.layout)
def onResize(self, event):
# print('old', event.oldSize(), 'new', event.size())
# super(MainWindow, self).resizeEvent(event)
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
wid = MainWindow()
wid.show()
sys.exit(app.exec())