按钮常用信号

Author: 892768447

.settings/org.eclipse.core.resources.prefs

@@ -46,6 +46,7 @@ encoding//QProxyStyle/TabTextDirection.py=utf-8
 encoding//QPushButton/BottomLineProgress.py=utf-8
 encoding//QPushButton/FontRotate.py=utf-8
 encoding//QPushButton/NormalStyle.py=utf-8
+encoding//QPushButton/SignalsExample.py=utf-8
 encoding//QScrollBar/StyleScrollBar.py=utf-8
 encoding//QSlider/PaintQSlider.py=utf-8
 encoding//QSlider/QssQSlider.py=utf-8

QPushButton/README.md

@@ -4,6 +4,7 @@
   - [普通样式](#1普通样式)
   - [按钮底部线条进度](#2按钮底部线条进度)
   - [按钮文字旋转进度](#3按钮文字旋转进度)
+  - [按钮常用信号](#4按钮常用信号)
 
 ## 1、普通样式
 [运行 NormalStyle.py](NormalStyle.py)
@@ -24,4 +25,12 @@
 
 利用字体，使用FontAwesome字体来显示一个圆形进度条，然后利用旋转动画
 
-![FontRotate](ScreenShot/FontRotate.gif)
+![FontRotate](ScreenShot/FontRotate.gif)
+
+## 4、按钮常用信号
+[运行 SignalsExample.py](SignalsExample.py)
+
+根据官网文档 https://doc.qt.io/qt-5/qabstractbutton.html#signals 中的信号介绍编写
+按钮的点击、按下、释放、选中信号演示
+
+![SignalsExample](ScreenShot/SignalsExample.gif)

QPushButton/ScreenShot/SignalsExample.gif

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2019年7月2日
+@author: Irony
+@site: https://pyqt5.com https://github.com/PyQt5
+@email: 892768447@qq.com
+@file: QPushButton.SignalsExample
+@description: 按钮信号例子
+"""
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton, QPlainTextEdit
+
+
+__Author__ = "Irony"
+__Copyright__ = "Copyright (c) 2019"
+__Version__ = "Version 1.0"
+
+
+class Window(QWidget):
+
+    def __init__(self, *args, **kwargs):
+        super(Window, self).__init__(*args, **kwargs)
+        layout = QVBoxLayout(self)
+
+        btn1 = QPushButton('按钮点击信号', self)
+        btn1.setObjectName('ClickBtn')
+        btn1.clicked.connect(self.onClicked)
+
+        layout.addWidget(btn1)
+        layout.addWidget(QPushButton(
+            '按钮按下信号', self, objectName='PressBtn', pressed=self.onPressed))
+        layout.addWidget(QPushButton(
+            '按钮释放信号', self, objectName='ReleaseBtn', released=self.onReleased))
+        layout.addWidget(QPushButton(
+            '按钮选中信号', self, checkable=True, objectName='ToggleBtn', toggled=self.onToggled))
+
+        self.resultView = QPlainTextEdit(self)
+        self.resultView.setReadOnly(True)
+        layout.addWidget(self.resultView)
+
+    def onClicked(self):
+        self.resultView.appendPlainText(
+            '按钮{0}被点击'.format(self.sender().objectName()))
+
+    def onPressed(self):
+        self.resultView.appendPlainText(
+            '按钮{0}被按下'.format(self.sender().objectName()))
+
+    def onReleased(self):
+        self.resultView.appendPlainText(
+            '按钮{0}被释放'.format(self.sender().objectName()))
+
+    def onToggled(self, checked):
+        self.resultView.appendPlainText(
+            '按钮{0}被选中：{1}'.format(self.sender().objectName(), checked))
+
+
+if __name__ == '__main__':
+    import sys
+    from PyQt5.QtWidgets import QApplication
+    app = QApplication(sys.argv)
+    w = Window()
+    w.show()
+    sys.exit(app.exec_())

QPushButton/SignalsExample.py

@@ -34,6 +34,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
     - [普通样式](QPushButton/NormalStyle.py)
     - [按钮底部线条进度](QPushButton/BottomLineProgress.py)
     - [按钮文字旋转进度](QPushButton/FontRotate.py)
+    - [按钮常用信号](QPushButton/SignalsExample.py)
   - [QToolButton](QToolButton)
   - [QRadioButton](QRadioButton)
   - [QCheckBox](QCheckBox)