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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import sys
from PySide6.QtCore import Slot
from PySide6.QtGui import QAction
from PySide6.QtWidgets import (QApplication, QHeaderView, QHBoxLayout, QLabel, QLineEdit,
QMainWindow, QPushButton, QTableWidget, QTableWidgetItem,
QVBoxLayout, QWidget)
class Widget(QWidget):
def __init__(self):
QWidget.__init__(self)
self.items = 0
# Example data
self._data = {"Water": 24.5, "Electricity": 55.1, "Rent": 850.0,
"Supermarket": 230.4, "Internet": 29.99, "Bars": 21.85,
"Public transportation": 60.0, "Coffee": 22.45, "Restaurants": 120}
# Left
self.table = QTableWidget()
self.table.setColumnCount(2)
self.table.setHorizontalHeaderLabels(["Description", "Price"])
self.table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
# Right
self.description = QLineEdit()
self.price = QLineEdit()
self.add = QPushButton("Add")
self.clear = QPushButton("Clear")
self.quit = QPushButton("Quit")
# Disabling 'Add' button
self.add.setEnabled(False)
self.right = QVBoxLayout()
self.right.addWidget(QLabel("Description"))
self.right.addWidget(self.description)
self.right.addWidget(QLabel("Price"))
self.right.addWidget(self.price)
self.right.addWidget(self.add)
self.right.addStretch()
self.right.addWidget(self.clear)
self.right.addWidget(self.quit)
# QWidget Layout
self.layout = QHBoxLayout()
#self.table_view.setSizePolicy(size)
self.layout.addWidget(self.table)
self.layout.addLayout(self.right)
# Set the layout to the QWidget
self.setLayout(self.layout)
# Signals and Slots
self.add.clicked.connect(self.add_element)
self.quit.clicked.connect(self.quit_application)
self.clear.clicked.connect(self.clear_table)
self.description.textChanged[str].connect(self.check_disable)
self.price.textChanged[str].connect(self.check_disable)
# Fill example data
self.fill_table()
@Slot()
def add_element(self):
des = self.description.text()
price = self.price.text()
self.table.insertRow(self.items)
self.table.setItem(self.items, 0, QTableWidgetItem(des))
self.table.setItem(self.items, 1, QTableWidgetItem(price))
self.description.setText("")
self.price.setText("")
self.items += 1
@Slot()
def check_disable(self, s):
if not self.description.text() or not self.price.text():
self.add.setEnabled(False)
else:
self.add.setEnabled(True)
@Slot()
def quit_application(self):
QApplication.quit()
def fill_table(self, data=None):
data = self._data if not data else data
for desc, price in data.items():
self.table.insertRow(self.items)
self.table.setItem(self.items, 0, QTableWidgetItem(desc))
self.table.setItem(self.items, 1, QTableWidgetItem(str(price)))
self.items += 1
@Slot()
def clear_table(self):
self.table.setRowCount(0)
self.items = 0
class MainWindow(QMainWindow):
def __init__(self, widget):
QMainWindow.__init__(self)
self.setWindowTitle("Tutorial")
# Menu
self.menu = self.menuBar()
self.file_menu = self.menu.addMenu("File")
# Exit QAction
exit_action = QAction("Exit", self)
exit_action.setShortcut("Ctrl+Q")
exit_action.triggered.connect(self.exit_app)
self.file_menu.addAction(exit_action)
self.setCentralWidget(widget)
@Slot()
def exit_app(self, checked):
QApplication.quit()
if __name__ == "__main__":
# Qt Application
app = QApplication(sys.argv)
# QWidget
widget = Widget()
# QMainWindow using QWidget as central widget
window = MainWindow(widget)
window.resize(800, 600)
window.show()
# Execute application
sys.exit(app.exec())
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