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49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
import sys
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from PySide6 import QtWidgets
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"""
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QAbstractSlider 信号
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actionTriggered(action: int) 当action被触发时发射此信号，详情参考文档
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rangeChanged(min: int, max: int) 当滑块数值范围变化时发射此信号，新的最小/大值作为参数传递
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sliderMoved(value: int) 当滑块被按下并移动时发射此信号，新的位置作为参数传递
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sliderPressed() 当滑块被用户按下或编程按下时发射此信号
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sliderReleased() 当滑块被用户释放或编程释放时发射此信号
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valueChanged(value: int) 当滑块的值改变时发射此信号，新的值作为参数传出
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"""
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class MyWidget(QtWidgets.QWidget):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.setWindowTitle("QAbstractSlider-信号")
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self.resize(800, 600)
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self.slider = QtWidgets.QSlider(self)
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self.setup_ui()
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self.signal_test()
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def setup_ui(self) -> None:
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"""设置界面"""
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self.slider.move(200, 200)
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def signal_test(self) -> None:
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"""测试滑块的各种信号"""
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self.slider.sliderMoved.connect(lambda value: print(f"滑块移动到了{value}")) # type: ignore
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self.slider.sliderPressed.connect(lambda: print("滑块被按下了！")) # type: ignore
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self.slider.sliderReleased.connect(lambda: print("滑块被释放了！")) # type: ignore
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self.slider.valueChanged.connect(lambda value: print(f"滑块的值变成了了{value}")) # type: ignore
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self.slider.rangeChanged.connect(lambda min_, max_: print(f"滑块的最小值变为了{min_}，最大值变为{max_}")) # type: ignore
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self.slider.setMaximum(200)
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if __name__ == "__main__":
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app = QtWidgets.QApplication(sys.argv)
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window = MyWidget()
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window.show()
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sys.exit(app.exec())
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