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| # The QTableWidget class provides an
# item-based table view with a default model.
#
# Simply put, it's a table.
from random import randint
import sys
from PySide6.QtCore import Qt
from PySide6.QtWidgets import (QApplication,
QWidget, QVBoxLayout, QTableWidget,
QTableWidgetItem, QHeaderView, QLabel)
class Window(QWidget):
def __init__(self):
super().__init__()
layout = QVBoxLayout()
self.setLayout(layout)
# 1 - Create the table widget passing row and column
# count to the constructor.
# This table widget has three rows and four columns
self.table_widget = QTableWidget(3, 4)
# Fit columns to table width
self.table_widget.horizontalHeader().setSectionResizeMode(
QHeaderView.ResizeMode.Stretch)
# 2 - Use QTableWidgetItem instances
# to manipulate table cells
# Fill the cells with some data
for r in range(self.table_widget.rowCount()):
for c in range(self.table_widget.columnCount()):
item = QTableWidgetItem(str(randint(0, 100)))
item.setTextAlignment(Qt.AlignmentFlag.AlignCenter)
self.table_widget.setItem(r, c, item)
self.table_widget.currentItemChanged.connect(
self.on_current_item_changed)
self.table_widget.itemChanged.connect(self.on_item_changed)
self.label = QLabel()
self.label.setAlignment(Qt.AlignmentFlag.AlignCenter)
layout.addWidget(self.table_widget)
layout.addWidget(self.label)
# 3 - Handle table widget events
# table selection changes:
def on_current_item_changed(self, current, previous):
# You have references to current and previously selected
# table cells. previous can be None!
self.label.setText('Selected cell value: {}'.format(current.text()))
# item value changes:
def on_item_changed(self, item):
self.label.setText('Cell value has changed: {}'.format(item.text()))
if __name__ == '__main__':
if not QApplication.instance():
app = QApplication(sys.argv)
else:
app = QApplication.instance()
main_window = Window()
main_window.show()
sys.exit(app.exec())
|