python: pyQt6 QTableWidget paging

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# 描述：
# Author    : geovindu,Geovin Du 涂聚文.
# IDE       : PyCharm 2023.1 python 3.11
# os        : windows 10
# database  : mysql 9.0 sql server 2019, poostgreSQL 17.0
# Datetime  : 2024/12/8 9:21
# User      : geovindu
# Product   : PyCharm
# Project   : Pysimple
# File      : pyqt6tablepaging.py
# explain   : 学习
from PyQt6.QtWidgets import QApplication, QWidget, QVBoxLayout, QTableWidget, QTableWidgetItem, QPushButton


class MainWindow(QWidget):
    """

    """
    def __init__(self):
        """

        """
        super().__init__()

        self.setWindowTitle("Table with Paging")
        self.resize(300,300)

        # Sample data
        self.data = [
            ['李二', '25', '深圳'],
            ['赵三', '30', '上海'],
            ['何四', '35', '重庆'],
            ['王五', '40', '天津'],
            ['张六', '28', '北京'],
            ['刘八', '32', '南京'],
            ['肖八', '27', '西安'],
            ['钱九', '36', '井岗山'],
            ['江十', '29', '南昌'],
            ['汪一', '31', '杭州'],
        ]

        self.pageSize = 3
        self.currentPage = 0
        self.rect=(2,4,200,280)
        self.table = QTableWidget()
        self.table.setColumnCount(3)
        self.table.setHorizontalHeaderLabels(['姓名', '年龄', '城市'])
        self.table.geometry=self.rect

        self.rect2 = (2, 220, 220, 280)

        self.prevButton = QPushButton("上一页")
        self.nextButton = QPushButton("下一页")

        self.prevButton.clicked.connect(self.prevPage)
        self.nextButton.clicked.connect(self.nextPage)
        self.prevButton.geometry=self.rect2
        layout = QVBoxLayout()
        layout.addWidget(self.table)
        layout.addWidget(self.prevButton)
        layout.addWidget(self.nextButton)
        self.setLayout(layout)

        self.updateTable()

    def updateTable(self):
        """

        :return:
        """
        startIndex = self.currentPage * self.pageSize
        endIndex = startIndex + self.pageSize

        self.table.setRowCount(0)

        for row_data in self.data[startIndex:endIndex]:
            row = self.table.rowCount()
            self.table.insertRow(row)
            for col, item in enumerate(row_data):
                self.table.setItem(row, col, QTableWidgetItem(item))

        self.prevButton.setEnabled(self.currentPage > 0)
        self.nextButton.setEnabled(endIndex < len(self.data))

    def prevPage(self):
        """

        :return:
        """

        self.currentPage -= 1
        self.updateTable()

    def nextPage(self):
        """

        :return:
        """
        self.currentPage += 1
        self.updateTable()


if __name__ == '__main__':
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec()