From a7d2118a99a424f4cfdd5a0f15cc78b8e44209d7 Mon Sep 17 00:00:00 2001
From: Luke Campagnola <>
Date: Mon, 18 Jun 2012 15:17:46 -0400
Subject: [PATCH] Added very simple, enterable object for setting busy cursor
 during long operations

---
 widgets/BusyCursor.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 widgets/BusyCursor.py

diff --git a/widgets/BusyCursor.py b/widgets/BusyCursor.py
new file mode 100644
index 00000000..4212d6a6
--- /dev/null
+++ b/widgets/BusyCursor.py
@@ -0,0 +1,24 @@
+from pyqtgraph.Qt import QtGui, QtCore
+
+__all__ = ['BusyCursor']
+
+class BusyCursor:
+    """Class for displaying a busy mouse cursor during long operations.
+    Usage::
+
+        with pyqtgraph.BusyCursor():
+            doLongOperation()
+
+    May be nested.
+    """
+    active = []
+
+    def __enter__(self):
+        QtGui.QApplication.setOverrideCursor(QtGui.QCursor(QtCore.Qt.WaitCursor))
+        BusyCursor.active.append(self)
+
+    def __exit__(self, *args):
+        BusyCursor.active.pop(-1)
+        if len(BusyCursor.active) == 0:
+            QtGui.QApplication.restoreOverrideCursor()
+        
\ No newline at end of file