[英]Adding QWidget in QMainWindow which already has a central widget in PyQt
I am developing a GUI app in PyQt.我正在 PyQt 中开发一个 GUI 应用程序。
For the buttons, I have used QWidget and for a QSqlTable I have used a QMainWindow.对于按钮,我使用了 QWidget,对于 QSqlTable,我使用了 QMainWindow。
I know I can add QWidget by adding setCentralwidget in QMainWindow.我知道我可以通过在 QMainWindow 中添加 setCentralwidget 来添加 QWidget。 But in order to show the Table, I need the table to be central widget.
但为了显示表格,我需要表格作为中心小部件。
Individually both work, but I am unable to have both at the same time.两者都单独工作,但我无法同时拥有两者。
My code is given below:我的代码如下:
import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtWidgets import QVBoxLayout, QGroupBox, QGridLayout, QPushButton,QLabel.
from PyQt5.QtGui import QPixmap
from PyQt5 import QtGui
from gwWindow import groundwaterWindow
from swWindow import surfacewaterWindow
from kwWindow import karstwaterWindow
from PyQt5.QtCore import Qt, QModelIndex
from PyQt5.QtSql import QSqlDatabase, QSqlTableModel, QSqlQuery
from PyQt5.QtWidgets import (QApplication, QMainWindow, QMessageBox, QTableView, QPushButton, QGridLayout, QGroupBox, QVBoxLayout)
from PyQt5 import QtCore
from PyQt5.QtCore import pyqtSignal
class MainWindow(QtWidgets.QWidget):
def __init__(self):
QtWidgets.QWidget.__init__(self)
self.title = "PPCP Selection"
self.top = 100
self.left = 100
self.width = 1200
self.height = 1200
self.InitWindow()
def InitWindow(self):
self.setWindowTitle(self.title)
self.setGeometry(self.top, self.left, self.width, self.height)
self.createLayout()
vBoxLayout = QVBoxLayout()
vBoxLayout.addWidget(self.groupBox1)
# vBoxLayout.addWidget(self.groupBox2)
self.setLayout(vBoxLayout)
# self.showMaximized()
def createLayout(self):
self.groupBox1 = QGroupBox("PPCP Selection")
self.groupBox1.setFont(QtGui.QFont("Arial", 30))
gridLayout = QGridLayout()
gridLayout.setRowStretch(2, 2)
self.button1 = QPushButton("Evaluate")
gridLayout.addWidget(self.button1, 1, 0, 1, 1)
#self.button1.clicked.connect(self.switch1)
gridLayout.addWidget(self.button1)
self.button1.setFocusPolicy(QtCore.Qt.NoFocus)
self.groupBox1.setLayout(gridLayout)
class RealMainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.setWindowTitle("QTableView Example")
self.resize(415, 200)
# Set up the model
self.model = TableModel(self)
self.model.setTable("Table2")
self.model.setEditStrategy(QSqlTableModel.OnFieldChange)
#self.model.setHeaderData(0, Qt.Horizontal, "ID")
self.model.select()
# Set up the view
self.view = QTableView()
self.view.setModel(self.model)
#self.view.resizeColumnsToContents()
self.another = MainWindow()
# I want both of the following
# self.setCentralWidget(self.view)
# self.setCentralWidget(self.another)
def secondWindow(self):
self.another = MainWindow()
self.another.show()
class TableModel(QSqlTableModel):
def __init__(self, *args, **kwargs):
QSqlTableModel.__init__(self, *args, **kwargs)
self.checkeable_data = {}
def flags(self, index):
fl = QSqlTableModel.flags(self, index)
if index.column() == 0:
fl |= Qt.ItemIsUserCheckable
return fl
def data(self, index, role=Qt.DisplayRole):
if role == Qt.CheckStateRole and (
self.flags(index) & Qt.ItemIsUserCheckable != Qt.NoItemFlags
):
if index.row() not in self.checkeable_data.keys():
self.setData(index, Qt.Unchecked, Qt.CheckStateRole)
return self.checkeable_data[index.row()]
else:
return QSqlTableModel.data(self, index, role)
def setData(self, index, value, role=Qt.EditRole):
if role == Qt.CheckStateRole and (
self.flags(index) & Qt.ItemIsUserCheckable != Qt.NoItemFlags
):
self.checkeable_data[index.row()] = value
self.dataChanged.emit(index, index, (role,))
return True
return QSqlTableModel.setData(self, index, value, role)
def createConnection():
con = QSqlDatabase.addDatabase("QSQLITE")
con.setDatabaseName("ppcp_database.db")
if not con.open():
QMessageBox.critical(
None,
"QTableView Example - Error!",
"Database Error: %s" % con.lastError().databaseText(),
)
return False
return True
app = QApplication(sys.argv)
if not createConnection():
sys.exit(1)
win = RealMainWindow()
win.show()
sys.exit(app.exec_())
Use a Qt layout:使用 Qt 布局:
class RealMainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.setWindowTitle("QTableView Example")
self.resize(415, 200)
# Set up the model
self.model = TableModel(self)
self.model.setTable("Table2")
self.model.setEditStrategy(QSqlTableModel.OnFieldChange)
self.model.select()
self.view = QTableView()
self.view.setModel(self.model)
self.another = MainWindow()
central_widget = QWidget()
self.setCentralWidget(central_widget)
lay = QVBoxLayout(central_widget)
lay.addWidget(self.view)
lay.addWidget(self.another)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.