QTableWidget 列跨度未正确调整大小

Question

我按照应有的方式填充了 QTableWidget() :) 现在我遇到了 col span 的问题。

左图显示了每一列的正确大小，右图是我在引入第一行“跨越”后得到的，这不是我想要的。

import sys

from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QAction, QTableWidget, QTableWidgetItem, QVBoxLayout



class MakeStrip(QWidget):
    def __init__(self, anno , mese):
        super().__init__()
        self.initUI(anno, mese)

    def initUI(self, anno, mese):
        self.title = "MAMbo - Strips di '%s' '%s' "%(mese, anno)
        self.setWindowTitle(self.title)
        self.setGeometry(50, 100, 250, 800)
        MakeStrip.callTable(self, anno, mese)
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.tableWidget)
        self.setLayout(self.layout)
        # Show widget
        self.show()

    def callTable(self, anno, mese):
        anno = '2021'
        self.alphamese = 'January'
        # Create table
        self.tableWidget = QTableWidget()
        self.tableWidget.setRowCount(10)
        self.tableWidget.setColumnCount(3)
        self.tableWidget.horizontalHeader().setVisible(False)
        header = self.tableWidget.horizontalHeader()
        header.setSectionResizeMode(0, QtWidgets.QHeaderView.ResizeToContents)
        header.setSectionResizeMode(1, QtWidgets.QHeaderView.ResizeToContents)
        header.setSectionResizeMode(2, QtWidgets.QHeaderView.ResizeToContents)
        self.tableWidget.verticalHeader().setVisible(False)
        self.tableWidget.verticalHeader().setDefaultSectionSize(13)
        self.vol_name = 'MAZZONI'
        zz=1
        self.tableWidget.setSpan(0, 0, 1, 3)
        newItem = QTableWidgetItem(self.vol_name)
        newItem.setTextAlignment(QtCore.Qt.AlignVCenter | QtCore.Qt.AlignHCenter)
        self.tableWidget.setItem(0, 0, newItem)

        self.tableWidget.setSpan(1, 0, 1, 3)
        newItem = QTableWidgetItem(self.alphamese)
        newItem.setTextAlignment(QtCore.Qt.AlignVCenter | QtCore.Qt.AlignHCenter)
        self.tableWidget.setItem(1, 0, newItem)

        while zz <= 10:
            self.dow = 'do'+str(zz)
            self.value = 'AAAAAAAA' +str(zz)
            self.tableWidget.setItem(zz+1, 0, QtWidgets.QTableWidgetItem(str(zz)))
            self.tableWidget.setItem(zz+1, 1, QtWidgets.QTableWidgetItem(self.dow))
            item = QtWidgets.QTableWidgetItem(self.value)
            item.setTextAlignment(QtCore.Qt.AlignVCenter | QtCore.Qt.AlignHCenter)
            self.tableWidget.setItem(zz+1, 2, item)
            zz += 1

        pippo = 0
        #return

if __name__ == '__main__':
    app = QApplication(sys.argv)
    anno = '2021'
    mese = 'January'
    ex = MakeStrip(anno, mese)
    sys.exit(app.exec_())

如何获取第二张图片的第一列，其大小与左侧图片中的一样？

附：第二行将包含另一个跨区信息

Answer 1

问题不是跨度而是最小宽度的计算列中所有项目的所有信息即使跨度被应用与否，例如看到宽度相同或没有跨度：

无跨度：

有跨度：

因此，解决此问题的一个技巧是在不使用模型的情况下通过委托传递文本：

import sys

from PyQt5 import QtCore, QtWidgets


class SpecialStyledItemDelegate(QtWidgets.QStyledItemDelegate):
    def __init__(self, parent=None):
        super().__init__(parent)
        self._values = dict()

    def add_text(self, text, row):
        self._values[row] = text

    def initStyleOption(self, option, index):
        super().initStyleOption(option, index)
        row = index.row()
        if row in self._values:
            option.text = self._values[row]
            option.displayAlignment = QtCore.Qt.AlignCenter


class MakeStrip(QtWidgets.QWidget):
    def __init__(self, anno, mese):
        super().__init__()
        self.initUI(anno, mese)

    def initUI(self, anno, mese):
        self.title = "MAMbo - Strips di '%s' '%s' " % (mese, anno)
        self.setWindowTitle(self.title)
        self.setGeometry(50, 100, 250, 800)
        self.callTable(anno, mese)
        layout = QtWidgets.QVBoxLayout(self)
        layout.addWidget(self.tableWidget)

    def callTable(self, anno, mese):
        anno = "2021"
        self.alphamese = "January"
        # Create table
        self.tableWidget = QtWidgets.QTableWidget()
        self.tableWidget.setRowCount(10)
        self.tableWidget.setColumnCount(3)

        self.special_delegate = SpecialStyledItemDelegate()
        self.tableWidget.setItemDelegate(self.special_delegate)

        self.special_delegate.add_text("MAZZONI", 0)
        self.special_delegate.add_text("January", 1)

        h_header = self.tableWidget.horizontalHeader()
        h_header.hide()
        for i in range(h_header.count()):
            h_header.setSectionResizeMode(i, QtWidgets.QHeaderView.ResizeToContents)

        v_header = self.tableWidget.verticalHeader()
        v_header.hide()
        v_header.setDefaultSectionSize(13)

        self.tableWidget.setSpan(1, 0, 1, 3)
        self.tableWidget.setSpan(0, 0, 1, 3)

        for zz in range(1, 10):
            dow = "do{}".format(zz)
            value = "AAAAAAAA{}".format(zz)
            self.tableWidget.setItem(zz + 1, 0, QtWidgets.QTableWidgetItem(str(zz)))
            self.tableWidget.setItem(zz + 1, 1, QtWidgets.QTableWidgetItem(dow))
            item = QtWidgets.QTableWidgetItem(value)
            item.setTextAlignment(QtCore.Qt.AlignCenter)
            self.tableWidget.setItem(zz + 1, 2, item)


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    anno = "2021"
    mese = "January"
    ex = MakeStrip(anno, mese)
    ex.show()
    sys.exit(app.exec_())