python - PyQt:多个 QGridLayout

Question

如何在一个小部件上拥有多个 QGridLayout？我希望左侧有一种网格布局，右侧有一种网格布局。

from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import sys

class FormWidget(QWidget):

    def __init__(self):
        super(FormWidget, self).__init__( )

        self.grid = QGridLayout(self)
        self.grid2 = QGridLayout(self)
        self.grid.addWidget(self.grid2)

    if __name__ == '__main__':

        app = QApplication(sys.argv)
        ex = FormWidget()
        sys.exit(app.exec_())

Answer 1

如果你想水平放置 2 个布局，那么你必须使用 QHBoxLayout:

import sys
from PyQt5.QtWidgets import QApplication, QGridLayout, QHBoxLayout, QWidget


class FormWidget(QWidget):
    def __init__(self, parent=None):
        super(FormWidget, self).__init__(parent)

        left_grid_layout = QGridLayout()
        right_grid_layout = QGridLayout()

        lay = QHBoxLayout(self)
        lay.addLayout(left_grid_layout)
        lay.addLayout(right_grid_layout)

        self.resize(640, 480)


if __name__ == "__main__":

    app = QApplication(sys.argv)
    ex = FormWidget()
    ex.show()
    sys.exit(app.exec_())

更新:

如果您想设置重量，则必须在拉伸(stretch)中设置它。

import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication, QGridLayout, QHBoxLayout, QTextEdit, QWidget


class FormWidget(QWidget):
    def __init__(self, parent=None):
        super(FormWidget, self).__init__(parent)

        left_grid_layout = QGridLayout()
        right_grid_layout = QGridLayout()

        # for testing
        left_grid_layout.addWidget(QTextEdit())
        right_grid_layout.addWidget(QTextEdit())


        lay = QHBoxLayout(self)
        lay.addLayout(left_grid_layout, stretch=1)
        lay.addLayout(right_grid_layout, stretch=2)

        lay.setContentsMargins(
            0, # left
            100, # top
            0, # right
            100 # bottom
        )

        self.resize(640, 480)


if __name__ == "__main__":

    app = QApplication(sys.argv)
    ex = FormWidget()
    ex.show()
    sys.exit(app.exec_())