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Twiss
Asked:2020-05-01 04:46:50 +0000 UTC2020-05-01 04:46:50 +0000 UTC

QHBoxLayout 中的小部件布局

  • 772

我需要小部件self.choice是全宽的（即现在它似乎 在应用程序后面setFixedSize(x, y)） 在此处输入图像描述

如何仅在不使用的情况下实现相同的功能setFixedSize(x, y)？

import sys
from PyQt5 import QtWidgets, QtCore, QtGui


class Main(QtWidgets.QWidget):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.setWindowTitle('python')
        self.setFixedSize(1000, 700)

        self.choice = QtWidgets.QTreeWidget(self)
        # self.choice.setFixedSize(700, 700)
        self.choice.setHeaderLabels(["1", "5", "7", "4", "2", "a", "ответ"])
        self.choice.setFont(QtGui.QFont('Times New Roman', 13))
        for item in range(10):
            tree_caption = QtWidgets.QTreeWidgetItem(["asdasdasd", "asdasdasd","asdasdasd",
                                                      "asdasdasd","asdasdasd","asdasdasd","asdasdasd",])
            self.choice.addTopLevelItem(tree_caption)
        lay = QtWidgets.QHBoxLayout()
        lay.addWidget(self.choice, 0, QtCore.Qt.AlignRight | QtCore.Qt.AlignHCenter)
        self.setLayout(lay)


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    main = Main()
    main.show()
    sys.exit(app.exec_())
python

1 个回答

  1. Best Answer

    要手动调整 QTreeWidget 的宽度以适应其内容：

    #!/usr/bin/env python3
import sys
from PyQt5 import QtWidgets

app = QtWidgets.QApplication(sys.argv)
ncolumns = 10
w = QtWidgets.QTreeWidget()
w.setHeaderLabels(map(str, range(ncolumns)))
w.header().setSectionResizeMode(QtWidgets.QHeaderView.ResizeToContents)
for item in range(ncolumns):
    w.addTopLevelItem(
        QtWidgets.QTreeWidgetItem([
            'abcdefghijkl', 'abcdefghijk', 'abcdefghij', 'abcdefghi',
            'abcdefgh', 'abcdefg', 'abcdef', 'abcde', 'abcd', 'abc'
        ]))
width = sum(w.columnWidth(i) + 3 for i in range(w.columnCount()))
w.resize(width, w.sizeHint().height())

w.show()
sys.exit(app.exec())
    • ResizeToContents 模式调整各个列以适应内容
    • QTreeWidget( width) 的宽度是通过对列宽求和来计算的
    • 初始大小已设置。

    qtreeview 宽度 resizetocontents

    • 3

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