PyQt6 布局管理器的六种实现示例_C/C++

pyqt布局管理器有六种:

move()方法布局
垂直布局管理器qvboxlayout()
水平布局管理器qhboxlayout()
表单布局管理器qformlayout()
网格布局管理器qgridlayout()
布局嵌套

move()方法

根据窗口坐标布局,类似tk的place。

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        self.resize(200,200)

        label1 = qlabel('username:',self)
        entry1 = qlineedit(self)
        # label2 = qlabel('password', self)
        # entry2 = qlineedit(self)

        # 布局
        label1.move(40,40)
        entry1.move(80,40)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())

垂直布局管理器qvboxlayout()

垂直:vertical horizontal: 水平

y 与 v 有点类似,v就是y 垂直布局.

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        label1 = qlabel("username:", self)
        entry1 = qlineedit(self)
        label2 = qlabel("password:", self)
        entry2 = qlineedit(self)

        # 布局
        v_layout = qvboxlayout()
        v_layout.addwidget(label1)
        v_layout.addwidget(entry1)
        v_layout.addwidget(label2)
        v_layout.addwidget(entry2)
        
        self.setlayout(v_layout)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())

水平布局管理器qhboxlayout()

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        label1 = qlabel("username:", self)
        entry1 = qlineedit(self)
        label2 = qlabel("password:", self)
        entry2 = qlineedit(self)

        # 布局
        h_layout = qhboxlayout()
        h_layout.addwidget(label1)
        h_layout.addwidget(entry1)
        h_layout.addwidget(label2)
        h_layout.addwidget(entry2)

        self.setlayout(h_layout)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())

表单布局管理器qformlayout()

常用方法

addrow(label, widget)：添加一行，包含标签和控件。例如用户名输入框或密码输入框。
setformalignment()：设置整个表单的对齐方式。
setlabelalignment()：设置标签的对齐方式。
addwidget(widget)：添加一个占用整行的控件，比如按钮或描述文字。

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        label1 = qlabel("username:", self)
        entry1 = qlineedit(self)
        label2 = qlabel("password:", self)
        entry2 = qlineedit(self)

        # 布局
        f_layout = qformlayout()
        f_layout.addrow(label1import sys
from pyqt6.qtwidgets import qapplication, qwidget, qlabel, qlineedit, qpushbutton, qformlayout
from pyqt6.qtcore import qt


class formexample(qwidget):
    def __init__(self):
        super().__init__()

        # 设置窗口标题和大小
        self.setwindowtitle("form alignment example")
        self.resize(400, 200)

        # 创建表单布局
        form_layout = qformlayout()

        # 添加标签和输入框
        form_layout.addrow("username:", qlineedit())
        form_layout.addrow("password:", qlineedit())

        # 添加按钮
        login_button = qpushbutton("login")
        form_layout.addwidget(login_button)

        # 设置表单整体对齐方式
        form_layout.setformalignment(qt.alignmentflag.aligncenter)  # 整体居中
        # 设置标签对齐方式
        form_layout.setlabelalignment(qt.alignmentflag.alignright)  # 标签右对齐

        # 应用布局
        self.setlayout(form_layout)


if __name__ == "__main__":
    app = qapplication(sys.argv)
    w = formexample()
    w.show()
    sys.exit(app.exec())
, entry1)
        f_layout.addrow(label2, entry2)


        self.setlayout(f_layout)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())

网格布局管理器qgridlayout()

类似tk的grid()布局方式

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        label1 = qlabel("username:", self)
        entry1 = qlineedit(self)
        label2 = qlabel("password:", self)
        entry2 = qlineedit(self)

        # 布局
        grid_layout = qgridlayout()
        grid_layout.addwidget(label1,0,0)
        grid_layout.addwidget(entry1,0,1)
        grid_layout.addwidget(label2,1,0)
        grid_layout.addwidget(entry2,1,1)

        # 应用布局
        self.setlayout(grid_layout)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())

布局嵌套

布局管理器除了可以添加控件，还可以添加子布局

import sys

from pyqt6.qtwidgets import *


class window(qwidget):
    def __init__(self):
        super().__init__()
        label1 = qlabel("username:", self)
        entry1 = qlineedit(self)
        label2 = qlabel("password:", self)
        entry2 = qlineedit(self)

        # 布局
        v_layout = qvboxlayout()
        h1_layout = qhboxlayout()
        h1_layout.addwidget(label1)
        h1_layout.addwidget(entry1)

        h2_layout = qhboxlayout()
        h2_layout.addwidget(label2)
        h2_layout.addwidget(entry2)

        v_layout.addlayout(h1_layout)
        v_layout.addlayout(h2_layout)


        # 应用布局
        self.setlayout(v_layout)


if __name__ == '__main__':
    app = qapplication(sys.argv)
    w = window()
    w.show()

    sys.exit(app.exec())