动态忙碌光标

Demo/GifCursor.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2020年3月13日
+@author: Irony
+@site: https://pyqt.site https://github.com/892768447
+@email: 892768447@qq.com
+@file: Demo.GifCursor
+@description: 
+"""
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton
+
+from Demo.Lib.QCursorGif import QCursorGif
+
+
+__Author__ = 'Irony'
+__Copyright__ = 'Copyright (c) 2020'
+__Version__ = 1.0
+
+
+class Window(QWidget, QCursorGif):
+
+    def __init__(self, *args, **kwargs):
+        super(Window, self).__init__(*args, **kwargs)
+        # 设置忙碌光标图片数组
+        self.initCursor(['Data/Images/Cursors/%d.png' %
+                         i for i in range(8)], self)
+        self.setCursorTimeout(100)
+
+        layout = QVBoxLayout(self)
+        layout.addWidget(QPushButton(
+            'start busy', self, clicked=self.startBusy))
+        layout.addWidget(QPushButton(
+            'stop busy', self, clicked=self.stopBusy))
+
+
+if __name__ == '__main__':
+    import sys
+    import cgitb
+    sys.excepthook = cgitb.enable(1, None, 5, '')
+    from PyQt5.QtWidgets import QApplication
+    app = QApplication(sys.argv)
+    w = Window()
+    w.show()
+    sys.exit(app.exec_())

Demo/Lib/QCursorGif.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2020年3月13日
+@author: Irony
+@site: https://pyqt.site https://github.com/892768447
+@email: 892768447@qq.com
+@file: Demo.Lib.QCursorGif
+@description: 
+"""
+from PyQt5.QtCore import QTimer, Qt
+from PyQt5.QtGui import QCursor, QPixmap
+from PyQt5.QtWidgets import QApplication
+
+
+__Author__ = 'Irony'
+__Copyright__ = 'Copyright (c) 2020'
+__Version__ = 1.0
+
+
+class QCursorGif:
+
+    def initCursor(self, cursors, parent=None):
+        # 记录默认的光标
+        self._oldCursor = Qt.ArrowCursor
+        self.setOldCursor(parent)
+        # 加载光标图片
+        self._cursorImages = [
+            QCursor(QPixmap(cursor)) for cursor in cursors]
+        self._cursorIndex = 0
+        self._cursorCount = len(self._cursorImages) - 1
+        # 创建刷新定时器
+        self._cursorTimeout = 200
+        self._cursorTimer = QTimer(parent)
+        self._cursorTimer.timeout.connect(self._doBusy)
+
+    def _doBusy(self):
+        if self._cursorIndex > self._cursorCount:
+            self._cursorIndex = 0
+        QApplication.instance().setOverrideCursor(
+            self._cursorImages[self._cursorIndex])
+        self._cursorIndex += 1
+
+    def startBusy(self):
+        if not self._cursorTimer.isActive():
+            self._cursorTimer.start(self._cursorTimeout)
+
+    def stopBusy(self):
+        self._cursorTimer.stop()
+        QApplication.instance().setOverrideCursor(self._oldCursor)
+
+    def setCursorTimeout(self, timeout):
+        self._cursorTimeout = timeout
+
+    def setOldCursor(self, parent=None):
+        self._oldCursor = (parent.cursor() or Qt.ArrowCursor) if parent else (
+            QApplication.instance().overrideCursor() or Qt.ArrowCursor)

Demo/README.md

@@ -22,6 +22,7 @@
   - [调整窗口显示边框](#19调整窗口显示边框)
   - [判断信号是否连接](#20判断信号是否连接)
   - [调用虚拟键盘](#21调用虚拟键盘)
+  - [动态忙碌光标](#22动态忙碌光标)
 
 ## 1、重启窗口Widget
 [运行 RestartWindow.py](RestartWindow.py)
@@ -215,3 +216,10 @@ PyQt 结合 Opencv 进行人脸检测；
 
 ![CallVirtualKeyboard1](ScreenShot/CallVirtualKeyboard1.png)
 ![CallVirtualKeyboard2](ScreenShot/CallVirtualKeyboard2.png)
+
+## 22、动态忙碌光标
+[运行 GifCursor.py](GifCursor.py)
+
+通过定时器不停的修改光标图片来实现动态效果
+
+![GifCursor](ScreenShot/GifCursor.gif)

README.md

@@ -244,6 +244,7 @@ https://pyqt.site 论坛是专门针对PyQt5学习和提升开设的网站，分
   - [背景连线动画](Demo/CircleLine.py)
   - [判断信号是否连接](Demo/IsSignalConnected.py)
   - [调用虚拟键盘](Demo/CallVirtualKeyboard.py)
+  - [动态忙碌光标](Demo/GifCursor.py)
 
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