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我只是将我的应用程序从 PyQt5 迁移到 PyQt6。我了解 Qt 模块已在 Qt6 中删除。我有'Qt.AlignCenter'、'Qt.ToolButtonTextUnderIcon'、'Qt.LeftToolBarArea'之类的东西,它们不再工作了。Qt6中这个功能有什么替代品吗?

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2 回答 2

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Qt 模块仅存在于 PyQt5 中(不在 Qt5 中),它允许访问任何子模块的任何类或元素,例如:

$ python
>>> from PyQt5 import Qt
>>> from PyQt5 import QtWidgets
>>> assert Qt.QWidget == QtWidgets.QWidget

该模块与属于 QtCore 模块的 Qt 命名空间不同,因此如果要访问 Qt.AlignCenter,则必须从 QtCore 导入 Qt:

import sys
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QApplication, QLabel


def main():
    app = QApplication(sys.argv)
    w = QLabel()
    w.resize(640, 498)

    w.setAlignment(Qt.Alignment.AlignCenter)
    w.setText("Qt is awesome!!!")
    w.show()

    app.exec()


if __name__ == "__main__":
    main()
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QApplication, QMainWindow, QStyle, QToolBar


def main():
    import sys

    app = QApplication(sys.argv)

    toolbar = QToolBar()
    toolbar.setToolButtonStyle(Qt.ToolButtonStyle.ToolButtonTextUnderIcon)

    icon = app.style().standardIcon(QStyle.StandardPixmap.SP_DesktopIcon)
    toolbar.addAction(icon, "desktop")

    w = QMainWindow()
    w.addToolBar(Qt.ToolBarAreas.LeftToolBarArea, toolbar)
    w.show()

    sys.exit(app.exec())


if __name__ == "__main__":
    main()
于 2021-01-14T23:48:39.337 回答
1

目前,AlignCenter和其他可以在AlignmentFlag枚举下找到:

from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QPushButton, QVBoxLayout

def create_widget():
    layout = QVBoxLayout()
    button = QPushButton('Cancel')
    layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
    layout.addWidget(button)
于 2021-10-12T14:57:04.653 回答