73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019年7月2日
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@author: Irony
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@site: https://pyqt.site , https://github.com/PyQt5
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@email: 892768447@qq.com
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@file: QPushButton.SignalsExample
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@description: 按钮信号例子
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"""
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try:
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from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QPlainTextEdit
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except ImportError:
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from PySide2.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton, QPlainTextEdit
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class Window(QWidget):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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layout = QVBoxLayout(self)
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btn1 = QPushButton('按钮点击信号', self)
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btn1.setObjectName('ClickBtn')
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btn1.clicked.connect(self.onClicked)
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layout.addWidget(btn1)
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btn2 = QPushButton('按钮按下信号', self)
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btn2.setObjectName('PressBtn')
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btn2.pressed.connect(self.onPressed)
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layout.addWidget(btn2)
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btn3 = QPushButton('按钮释放信号', self)
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btn3.setObjectName('ReleaseBtn')
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btn3.released.connect(self.onReleased)
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layout.addWidget(btn3)
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btn4 = QPushButton('按钮释放信号', self)
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btn4.setObjectName('ToggleBtn')
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btn4.setCheckable(True)
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btn4.toggled.connect(self.onToggled)
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layout.addWidget(btn4)
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self.resultView = QPlainTextEdit(self)
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self.resultView.setReadOnly(True)
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layout.addWidget(self.resultView)
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def onClicked(self):
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self.resultView.appendPlainText(
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'按钮{0}被点击'.format(self.sender().objectName()))
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def onPressed(self):
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self.resultView.appendPlainText(
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'按钮{0}被按下'.format(self.sender().objectName()))
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def onReleased(self):
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self.resultView.appendPlainText(
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'按钮{0}被释放'.format(self.sender().objectName()))
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def onToggled(self, checked):
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self.resultView.appendPlainText(
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'按钮{0}被选中：{1}'.format(self.sender().objectName(), checked))
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if __name__ == '__main__':
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import sys
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app = QApplication(sys.argv)
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w = Window()
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w.show()
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sys.exit(app.exec_())
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