100 lines
3.8 KiB
Python
100 lines
3.8 KiB
Python
from PySide6.QtWidgets import (QApplication, QMainWindow, QTableWidget,
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QTableWidgetItem, QHeaderView)
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from PySide6.QtCore import Qt, Signal
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from PySide6.QtGui import QPainter
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import sys
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class CheckBoxHeader(QHeaderView):
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checkbox_clicked = Signal(bool) # 创建信号用于传递复选框状态
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def __init__(self, orientation, parent=None):
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super().__init__(orientation, parent)
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self.is_checked = False
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self.checkbox_rect = None
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self.setSectionsClickable(True)
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self.sectionClicked.connect(self.handle_section_clicked)
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def paintSection(self, painter: QPainter, rect, logical_index):
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painter.save()
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if logical_index == 0: # 在第一列绘制复选框
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checkbox_size = 15
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self.checkbox_rect = rect
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# 计算复选框位置，稍微向左偏移
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x = rect.x() + 5 # 从左边留出5像素的间距
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y = rect.y() + (rect.height() - checkbox_size) // 2
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# 绘制复选框
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painter.setPen(Qt.black)
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painter.drawRect(x, y, checkbox_size, checkbox_size)
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if self.is_checked:
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painter.drawLine(x + 3, y + 7, x + 6, y + 10)
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painter.drawLine(x + 6, y + 10, x + 12, y + 4)
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# 绘制文字
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text_rect = rect.adjusted(checkbox_size + 10, 0, 0, 0) # 文字位置在复选框右侧
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painter.drawText(text_rect, Qt.AlignVCenter, "选择")
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else:
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# 其他列正常绘制
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super().paintSection(painter, rect, logical_index)
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painter.restore()
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def handle_section_clicked(self, logical_index):
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if logical_index == 0 and self.checkbox_rect:
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self.is_checked = not self.is_checked
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self.checkbox_clicked.emit(self.is_checked)
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self.updateSection(0)
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class MainWindow(QMainWindow):
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def __init__(self):
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super().__init__()
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self.setWindowTitle("表头复选框示例")
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self.resize(400, 300)
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# 创建表格
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self.table = QTableWidget(5, 3)
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self.setCentralWidget(self.table)
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# 设置表头
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header = CheckBoxHeader(Qt.Horizontal, self.table)
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self.table.setHorizontalHeader(header)
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header.checkbox_clicked.connect(self.on_header_checkbox_clicked)
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# 设置表头标题
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self.table.setHorizontalHeaderLabels(["选择", "列1", "列2"])
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# 调整列宽
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self.table.horizontalHeader().setStretchLastSection(True) # 最后一列自动拉伸
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self.table.horizontalHeader().resizeSection(0, 80) # 设置第一列宽度为80像素
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# 调整表格样式
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self.table.setShowGrid(True) # 显示网格线
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self.table.setAlternatingRowColors(True) # 交替行颜色
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# 填充表格数据
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for row in range(5):
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# 添加复选框
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checkbox_item = QTableWidgetItem()
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checkbox_item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled)
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checkbox_item.setCheckState(Qt.Unchecked)
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self.table.setItem(row, 0, checkbox_item)
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# 添加其他数据
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self.table.setItem(row, 1, QTableWidgetItem(f"数据 {row+1}-1"))
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self.table.setItem(row, 2, QTableWidgetItem(f"数据 {row+1}-2"))
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def on_header_checkbox_clicked(self, checked):
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# 处理表头复选框点击事件
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for row in range(self.table.rowCount()):
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item = self.table.item(row, 0)
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if item:
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item.setCheckState(Qt.Checked if checked else Qt.Unchecked)
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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window = MainWindow()
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window.show()
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sys.exit(app.exec()) |